Abrasive Tools
2014年3月19日星期三
Indicators will be secure in the GUSHI concrete diamond blades transition layer is equal to the substrate adjacent to the Department of the diamond layer
Indicators will be secure in the transition layer is equal to the substrate adjacent to the Department of the diamond layer . Our base for the abrasive layer convergence , and in the use with flange firmlyabrasive grinding
wheels held on the grinding machine spindle. Suri outside environment as more rounded shape . There is not a diamond wheel diamond production from. It may be divided into three layers , i.e. task layer , substrate buffer layer . As long as the task layer is called the diamond layer , the abrasive agent and filler compact form seems like a diamond determines its inability to do4 inch saw blades tough . The buffer layer and the substrate are non-diamond layer . Even as a diamond wheel roots sand arrived with its most empty thinking is to see the consistent use of abrasive materials . Its primary organs are made of metal powder, resin powder , ceramic and metal plating as liaison agent. How the diamond wheel three disjointed comprehensive alone. If the corporate team as it tastes good Qianan three choices of diamond grinding wheel diamond place.
2013年12月15日星期日
Decomposition cut stainless steel blade chrome plating surface nitriding and appearance classification
( Seven color ) , this coating when cutting stainless steel and alloy steel and steel, compared to the general coating abrasion resistance , reduces the resistance under high-speed operation , in order to prolong the life of the saw blade and maintain long-term action under stability. And plus cobalt in the blade , the blade can effectively improve the turbo diamond blade stability , hardness and wear resistance. Cobalt content increases can reduce the coefficient of friction saw, between the workpiece . Its durability is 1 to 2 times the normal speed steel. This blade is especially suitable for stainless steel tubing , rods, profiles sawing , cutting, cutting, milling. When used in the processing of ordinary steel , aluminum , plastic, wood and other materials , the effect is very obvious , less burr section after cutting , good blade toughness , long cutting life. Machinable stainless steel tube material : 3-Series industrial stainless steel.
PVD coating specially treated blade , the diamond discs surface was golden , the surface hardness of 2400HV, compared with steam treatment increased nearly three -fold blade , Mocha coefficient is reduced to 0.55 , for fast sawing on semiautomatic or fully automatic metal circular sawing machine cut seamless steel tubes, iron pipes , rods , etc., faster than the steam treatment blade doubles , effectively reducing the cost cutting while in the cutting of stainless steel pipe , can get quite satisfactory results .1 cut , continuous edge blade : Continuous serrated diamond saw, generally produced by sintering method , commonly used as a basis for bronze binder matrix material, cutting water to be added to ensure that the effect of cutting and a laser head cutting kinds of useful gap .
2 , blade -type blade : serrated disconnected, cutting speed, suitable for dry and wet cutting methods.
3 , turbine -type blade : 1,2 combines the advantages of the previous two , the sawtooth -like uniform continuous presence diamond bandsaw blades turbo punch , improved cutting speed and increase service life.
Diamond saw blade , constant blade sharp pebbles , Heng Rui concrete saw blades , diamond sculptured piece , slotted diamond , diamond -cut wall pieces , diamond cut pile piece , Songshan cobblestone saw, Songshan concrete saw blade.
Different materials selection of different types of diamond saw blades , different powder formulations for different material properties , the quality of materials and products , effects, and even the costs and benefits of the pass rate direct impact .
Factors affecting the efficiency and life of saw blade has a particle size , concentration, binding agent , and the hardness of the diamond sawing process parameters and the like . It has a blade cutting parameters line speed , concentration and cutting feed rate .
PVD coating specially treated blade , the diamond discs surface was golden , the surface hardness of 2400HV, compared with steam treatment increased nearly three -fold blade , Mocha coefficient is reduced to 0.55 , for fast sawing on semiautomatic or fully automatic metal circular sawing machine cut seamless steel tubes, iron pipes , rods , etc., faster than the steam treatment blade doubles , effectively reducing the cost cutting while in the cutting of stainless steel pipe , can get quite satisfactory results .1 cut , continuous edge blade : Continuous serrated diamond saw, generally produced by sintering method , commonly used as a basis for bronze binder matrix material, cutting water to be added to ensure that the effect of cutting and a laser head cutting kinds of useful gap .
2 , blade -type blade : serrated disconnected, cutting speed, suitable for dry and wet cutting methods.
3 , turbine -type blade : 1,2 combines the advantages of the previous two , the sawtooth -like uniform continuous presence diamond bandsaw blades turbo punch , improved cutting speed and increase service life.
Diamond saw blade , constant blade sharp pebbles , Heng Rui concrete saw blades , diamond sculptured piece , slotted diamond , diamond -cut wall pieces , diamond cut pile piece , Songshan cobblestone saw, Songshan concrete saw blade.
Different materials selection of different types of diamond saw blades , different powder formulations for different material properties , the quality of materials and products , effects, and even the costs and benefits of the pass rate direct impact .
Factors affecting the efficiency and life of saw blade has a particle size , concentration, binding agent , and the hardness of the diamond sawing process parameters and the like . It has a blade cutting parameters line speed , concentration and cutting feed rate .
2013年10月23日星期三
A detailed description of the blade cutting parameters
Diamond saw blade cutting parameters
( 1 ) diamond blade speed : in practical work , diamond saw blade speed by equipment conditions , saw the quality and the nature of the restrictions before sawing stone . From the optimum blade life and cutting efficiency , it should be selected depending on the nature granite blade of the stone saw blade speed . Sawing granite , the blade speed at 25m ~ 35m / s within the selected range . For high quartz content and difficult cutting granite , remove the blade speed limit is appropriate. In the production of granite tiles , the use of smaller diameter diamond saw blade , wire speed can reach 35m / s.
( 2 ) Cutting Depth : diamond cutting depth is related to wear , effective cutting , saw cutting force conditions and the nature of the important parameters of stone . Generally speaking, when the line speed diamond saw blade is high, should be selected for cutting of small depth , from the current technology , the cutting depth of the diamond can choose between 1mm ~ 10mm . Usually with a large diameter saw blade cutting granite fibre discs blocks , the cutting depth can be controlled within 1mm ~ 2mm between the feed rate should be reduced at the same time . When the line speed diamond saw blade is large , a large cutting depth should be selected . But in performance and tool strength saw the extent permitted , should try to take a greater depth of cut for cutting to improve cutting efficiency . When the machined surface when requested , should be used small depth of cut . ( 3 ) diamond saw blade feed rate : Feed speed incurs sawing stone feed rate . Its size sawing Plate Compactor rate impact , the force and the cutting blade heat dissipation area . Its value should be based on the nature of the selected cutting stone . Generally speaking , sawing softer stone, such as marble, may be appropriate to increase the feed speed , if the feed rate is too low, more conducive to high cutting rates . Sawing fine structure , relatively homogeneous granite, may be appropriate to increase the feed speed , feed rate is too low if the diamond blade easily be polished . But sawing UNEVEN coarse granite structure , should reduce feed speed , otherwise it will cause the blade vibration and reduce fragmentation leading diamond cutting rates . Granite cutting feed rate is generally 9m ~ 12m/min within the selected range .
( 1 ) diamond blade speed : in practical work , diamond saw blade speed by equipment conditions , saw the quality and the nature of the restrictions before sawing stone . From the optimum blade life and cutting efficiency , it should be selected depending on the nature granite blade of the stone saw blade speed . Sawing granite , the blade speed at 25m ~ 35m / s within the selected range . For high quartz content and difficult cutting granite , remove the blade speed limit is appropriate. In the production of granite tiles , the use of smaller diameter diamond saw blade , wire speed can reach 35m / s.
( 2 ) Cutting Depth : diamond cutting depth is related to wear , effective cutting , saw cutting force conditions and the nature of the important parameters of stone . Generally speaking, when the line speed diamond saw blade is high, should be selected for cutting of small depth , from the current technology , the cutting depth of the diamond can choose between 1mm ~ 10mm . Usually with a large diameter saw blade cutting granite fibre discs blocks , the cutting depth can be controlled within 1mm ~ 2mm between the feed rate should be reduced at the same time . When the line speed diamond saw blade is large , a large cutting depth should be selected . But in performance and tool strength saw the extent permitted , should try to take a greater depth of cut for cutting to improve cutting efficiency . When the machined surface when requested , should be used small depth of cut . ( 3 ) diamond saw blade feed rate : Feed speed incurs sawing stone feed rate . Its size sawing Plate Compactor rate impact , the force and the cutting blade heat dissipation area . Its value should be based on the nature of the selected cutting stone . Generally speaking , sawing softer stone, such as marble, may be appropriate to increase the feed speed , if the feed rate is too low, more conducive to high cutting rates . Sawing fine structure , relatively homogeneous granite, may be appropriate to increase the feed speed , feed rate is too low if the diamond blade easily be polished . But sawing UNEVEN coarse granite structure , should reduce feed speed , otherwise it will cause the blade vibration and reduce fragmentation leading diamond cutting rates . Granite cutting feed rate is generally 9m ~ 12m/min within the selected range .
2013年10月22日星期二
during the grinding the grinding characteristics of
1 deformation complex grinding process to produce chips stacked like squeeze crack.(2) the grinding process, the grinding wheel adhesion severe adhesion loss can lead to wheel abrasive material diamond core drills crushing and shedding.3 grinding force, grinding temperature is high, the normal force per unit width reaches 13N/mm about tangential grinding force per unit width reaches 9N/mm so. Grinding temperature reaches 650 degrees.4 high chemical activity, if titanium silicon carbide grinding wheel when the grinding action of heat, the silicon and oxygen in the air react to produce silicon oxide, the release concrete pads of heat, so that the surface layer by layer abrasive erosion, wheel causes oxidation wear, and that react with the titanium carbide, titanium carbide, resulting in the spread of wheel wear.he main difference is the type of binding agent: resin bonded diamond grinding wheel mainly phenolic resin and a small amount of metal powder as a binder, and tct blades electroplated diamond grinding wheel is a method by electrodeposition of nickel-cobalt alloy is deposited on the metal substrate surface and fixed to a diamond abrasive wheel production process.grinding force, grinding temperature is high, the normal force per unit width reaches 13N/mm about tangential grinding force per unit width reaches 9N/mm so. Grinding temperature reaches 650 degrees.
2013年10月11日星期五
The chemical composition of diamond and graphite are carbon
scientists call "homogeneous much like variant", there are also known as "allotropes." From this call may know that they have the same "quality", but the "shape" or "sex" is different, and there diamond cup grinding wheel is a world of difference, diamond is the hardest substance, while graphite is one of the softest material. We all know that with graphite pencil and clay ratio and made of graphite as many soft, with a "B" indicates, more than the hard clay mixed with "H" represents. Mineralogist with Mohs hardness expressed relative hardness, diamond is 10, while graphite is only a Mohs hardness. Their hardness big difference lies in their internal structure is very different.
Graphite carbon atoms are within the layered arrangement, only around one carbon atom with three carbon atoms attached, form a carbon to carbon hexagonal ring, an infinite number of a layer of hexagons. Contact force between the layers is weak, and contact layer is firmly three ceramic tile saw carbon atoms, by the force between layers so it is easy to slip, which is very soft to write graphite causes.
Diamond carbon atoms are within the "skeleton" shaped arrangement of three-dimensional space, one carbon atom is surrounded by four carbon atom, thus forming a three-dimensional space in a skeleton-like, this structure is uniform in all directions, contact force, very strong coupling, Therefore, the diamond has a high hardness properties.
Graphite and diamond hardness vary so much, but people still want to be able to get the diamond synthetic method, because the nature of graphite (carbon) reserves are very rich. But to make the bandsaw blades carbon graphite are arranged into a diamond like carbon, is not so easy. The late eighteenth century, people began to look for ways of synthesis, until the mid-century. 1938 Rossini scholar thermodynamic calculation, laid the theoretical foundation of synthetic diamond, calculated to make the graphite into a diamond, at least at 15,000 atmospheres, 1500 degrees Celsius under high temperature conditions can, to built 50-60 years to achieve the above conditions Instrument. Graphite 5-6 million atmospheres ((5-6) × 103MPa) and 1000 to 2000 ° C temperatures, then the metallic iron, cobalt, nickel and the like as catalyst, can graphite into diamond.
Graphite carbon atoms are within the layered arrangement, only around one carbon atom with three carbon atoms attached, form a carbon to carbon hexagonal ring, an infinite number of a layer of hexagons. Contact force between the layers is weak, and contact layer is firmly three ceramic tile saw carbon atoms, by the force between layers so it is easy to slip, which is very soft to write graphite causes.
Diamond carbon atoms are within the "skeleton" shaped arrangement of three-dimensional space, one carbon atom is surrounded by four carbon atom, thus forming a three-dimensional space in a skeleton-like, this structure is uniform in all directions, contact force, very strong coupling, Therefore, the diamond has a high hardness properties.
Graphite and diamond hardness vary so much, but people still want to be able to get the diamond synthetic method, because the nature of graphite (carbon) reserves are very rich. But to make the bandsaw blades carbon graphite are arranged into a diamond like carbon, is not so easy. The late eighteenth century, people began to look for ways of synthesis, until the mid-century. 1938 Rossini scholar thermodynamic calculation, laid the theoretical foundation of synthetic diamond, calculated to make the graphite into a diamond, at least at 15,000 atmospheres, 1500 degrees Celsius under high temperature conditions can, to built 50-60 years to achieve the above conditions Instrument. Graphite 5-6 million atmospheres ((5-6) × 103MPa) and 1000 to 2000 ° C temperatures, then the metallic iron, cobalt, nickel and the like as catalyst, can graphite into diamond.
2013年10月10日星期四
Diamond saw blade matrix heat treatment process
Diamond saw blade matrix heat treatment process, diamond saw blade is mainly used for cutting hard and brittle stone , it is the production of natural stone plate one of the main tools , the use sanding paper of conventional abrasives and equipment will have a range of issues , such as quality, ruggedness , flaking and production of excess costs. They can not win the competition and profit. These companies in order to obtain high efficiency are looking for new equipment, which often is used superabrasive tool and design. Refinement rough casting and forging parts production can reduce many of the pre- processing operations.
Using new materials need or use with ceramic tile saw a diamond wheel dresser diamond pen to be trimmed , shovel frosted ... truncate wheel design calculations rather cumbersome , so often used in some of the approximate calculation produced a number of components such as camshafts , crankshafts, wheels , brake parts and support , can now be pressing or forging , grinding or high-speed and high-speed machining processes for finishing , which can significantly reduce the materials to the etal grinding wheel finished parts from the rough time , heat treatment technology is unreasonable or not cross the border, leading to At present many manufacturers of diamond saw blade matrix production levels and product quality is not high, the main reason. Copper or aluminum foil on the cylinder with a tip made of single crystal diamond grooving , and ultimately made nearly ideal cutting material in the field of super finishing applications .
Using new materials need or use with ceramic tile saw a diamond wheel dresser diamond pen to be trimmed , shovel frosted ... truncate wheel design calculations rather cumbersome , so often used in some of the approximate calculation produced a number of components such as camshafts , crankshafts, wheels , brake parts and support , can now be pressing or forging , grinding or high-speed and high-speed machining processes for finishing , which can significantly reduce the materials to the etal grinding wheel finished parts from the rough time , heat treatment technology is unreasonable or not cross the border, leading to At present many manufacturers of diamond saw blade matrix production levels and product quality is not high, the main reason. Copper or aluminum foil on the cylinder with a tip made of single crystal diamond grooving , and ultimately made nearly ideal cutting material in the field of super finishing applications .
2013年10月9日星期三
diamond segment describes the optical properties of
(1) flashing (Scintillation) is flashing diamond flash, that is, when the diamond or the light source, the diamond cup grinding wheel observer moves relative to the surface of the white light reflection and flash. Colorless, transparent, well-crystallized poly octahedral shaped diamond surface bodies or, if not Gache grinding can expose good flashing light.
(2) Identification of the optical intensity (Brilliance) because of the diamond has a very high reflectivity of the reflection critical angle is small, a wide range of total reflection, total reflection light is easily reflected light is large, resulting in high brightness.Depends concrete drill bits not only on the performance of the blade diamond, but on the diamond and the binder with the appropriate head of this composite material composed of the overall performance. For marble and other soft stone, head of the mechanical properties required is relatively low, the choice of copper-based binder. The sintering temperature is low but the copper-based binder, strength, low hardness, high toughness, low bonding strength with the diamond. When adding tungsten carbide (WC), the WC or W2C to as a skeleton metal, with the brick saw blades amount of cobalt in order to improve the strength
(3) Gloss (Luster) outstanding diamond-like hard, smooth and bright crystal face or cleavage face in white light reflection effect particularly strong, and this is very characteristic of the role of reflective called adamantine luster.
(4) the dispersion or the fire (Dispersion or fire) planes of diamond as diverse as prism, can through refraction, reflection and total reflection into the interior of the crystal composition of white light into white color - red, orange, yellow, green, blue, indigo, violet shade.
(2) Identification of the optical intensity (Brilliance) because of the diamond has a very high reflectivity of the reflection critical angle is small, a wide range of total reflection, total reflection light is easily reflected light is large, resulting in high brightness.Depends concrete drill bits not only on the performance of the blade diamond, but on the diamond and the binder with the appropriate head of this composite material composed of the overall performance. For marble and other soft stone, head of the mechanical properties required is relatively low, the choice of copper-based binder. The sintering temperature is low but the copper-based binder, strength, low hardness, high toughness, low bonding strength with the diamond. When adding tungsten carbide (WC), the WC or W2C to as a skeleton metal, with the brick saw blades amount of cobalt in order to improve the strength
(3) Gloss (Luster) outstanding diamond-like hard, smooth and bright crystal face or cleavage face in white light reflection effect particularly strong, and this is very characteristic of the role of reflective called adamantine luster.
(4) the dispersion or the fire (Dispersion or fire) planes of diamond as diverse as prism, can through refraction, reflection and total reflection into the interior of the crystal composition of white light into white color - red, orange, yellow, green, blue, indigo, violet shade.
2013年10月8日星期二
affect the life of the main factors diamond saw what
Impact efficiency and life of saw blade sawing factors are process parameters and the diamond particle size, density, hardness and other binders. It has cut the number of blades can be wire-speed, concentration Plate Compactor and cutting feedrate.One, cutting parameters(1) blade speed: In practice, the line speed diamond saw blades by equipment conditions, saw the quality and the nature of the restrictions before sawing stone. From the optimum blade life and cutting efficiency, it should be selected depending on the nature of the stone saw blade speed. Sawing granite, the blade speed at 25m ~ 35m / s within the selected range. For high quartz content and tile cutting blades difficult cutting granite, remove the blade speed limit is appropriate. Granite tiles in the production, the use of smaller diameter diamond saw blade, the line speed can reach 35m / s.(2) Cutting Depth: diamond cutting depth is related to wear, effective cutting, saw cutting force conditions and the nature of the important parameters of stone. Generally speaking, when the circular blades line speed diamond saw blade is high, should be selected for cutting of small depth, from the current technology, the cutting depth of the diamond can choose between 1mm ~ 10mm. Usually with a large diameter saw blade cutting granite blocks, the cutting depth can be controlled within 1mm ~ 2mm between the feed rate should be reduced at the same time. When the line speed diamond saw blade is large, a large cutting depth should be selected. But in performance and tool strength saw the extent permitted, should try to take a greater depth of cut for cutting to improve cutting efficiency. When the machined surface when requested, should be used small depth of cut.(3) Feed speed: Cutting feedrate incurs stone feed rate. Its size sawing rate impact, the force and the cutting blade heat dissipation area. Its value should be based on the nature of the selected cutting stone.
2013年9月29日星期日
When coarse diamond size and granularity of a single
sharp saw blade, cutting efficiency is high, but the flexural strength of agglomerated diamond drop; when fine or coarse grained diamond size when mixed with saw blade durability, but efficiency is low. Considering these factors, choose diamond size 50/60 mesh is more appropriate.
(2) the selection of diamond concentration distribution
Within a certain range, when the diamond concentration changes from low to high, the blade sharpness and cutting efficiency 4 inch saw blades decreased, while life is gradually extended; but the concentration is too high, the blade becomes blunt. The use of low concentration, coarse, efficiency will be increased. The use of various parts of the cutting head when the different roles of different concentrations (i.e. three or more layer structure in the intermediate layer can be used in low concentrations), the saw blade during the work head to form an intermediate groove, with helps prevent blade deflection, thereby improving the quality of stone processing.
3 diamond strength selection
Is to ensure the strength of the diamond cutting important indicator of performance. High intensity causes the crystal is broken, the polishing abrasive grains are in use, the sharpness decreased, resulting in performance degradation tool; diamond enough strength when subjected to shock easily broken, difficult to bear heavy cutting. It should choose a strength of 130 ~ 140N.
4 choice of binder phase
Depends not only on the performance of concrete saw blades the blade diamond, but on the diamond and the binder with the appropriate head of this composite material composed of the overall performance. For marble and other soft stone, head of the mechanical properties required is relatively low, the choice of copper-based binder. The sintering temperature is low but the copper-based binder, strength, low hardness, high toughness, low bonding strength with the diamond. When adding tungsten carbide (WC), the WC or W2C to as a skeleton metal, with the amount of cobalt in order to improve the strength, hardness and binding properties, and add a small amount of low melting point and low hardness Cu, Sn, Zn and other metal for bonding phase. Main plus ingredients should be finer than 200 mesh size, add ingredients finer than 300 mesh size should be.
5 Select the sintering process
As the temperature increases, the core bits for concrete carcass densification improved flexural strength also will increase, and with the holding time, the blank matrix and diamond caked flexural strength increased firstly and then decreased, you can choose 120s at 800 ℃ sintering processes to meet performance requirements.
(2) the selection of diamond concentration distribution
Within a certain range, when the diamond concentration changes from low to high, the blade sharpness and cutting efficiency 4 inch saw blades decreased, while life is gradually extended; but the concentration is too high, the blade becomes blunt. The use of low concentration, coarse, efficiency will be increased. The use of various parts of the cutting head when the different roles of different concentrations (i.e. three or more layer structure in the intermediate layer can be used in low concentrations), the saw blade during the work head to form an intermediate groove, with helps prevent blade deflection, thereby improving the quality of stone processing.
3 diamond strength selection
Is to ensure the strength of the diamond cutting important indicator of performance. High intensity causes the crystal is broken, the polishing abrasive grains are in use, the sharpness decreased, resulting in performance degradation tool; diamond enough strength when subjected to shock easily broken, difficult to bear heavy cutting. It should choose a strength of 130 ~ 140N.
4 choice of binder phase
Depends not only on the performance of concrete saw blades the blade diamond, but on the diamond and the binder with the appropriate head of this composite material composed of the overall performance. For marble and other soft stone, head of the mechanical properties required is relatively low, the choice of copper-based binder. The sintering temperature is low but the copper-based binder, strength, low hardness, high toughness, low bonding strength with the diamond. When adding tungsten carbide (WC), the WC or W2C to as a skeleton metal, with the amount of cobalt in order to improve the strength, hardness and binding properties, and add a small amount of low melting point and low hardness Cu, Sn, Zn and other metal for bonding phase. Main plus ingredients should be finer than 200 mesh size, add ingredients finer than 300 mesh size should be.
5 Select the sintering process
As the temperature increases, the core bits for concrete carcass densification improved flexural strength also will increase, and with the holding time, the blank matrix and diamond caked flexural strength increased firstly and then decreased, you can choose 120s at 800 ℃ sintering processes to meet performance requirements.
2013年9月28日星期六
Diamond Saw Blade Application: Multi Disc Diamond Stone Saw
Diamond Saw Blade Application: Multi Disc Diamond Stone Saw
Disc Diamond Stone Saw HQJ-2200 multifunction stone sawing machine , saw blade can be installed 1600SM, 1800SM, 2200SM diamond saw . Whole structure consists of a fixed base connected on two pillars and PCD grinding wheel two columns on the top rack of the upper beam composition , characterized in that : the left and right wheel saw through the left and right axle mounted on the left and right axle seat, left right column shaft seat and slidable along the sleeve as a whole , the left and right sleeve is provided with locking means , the left and right sleeve integrally connected via the sds drill bits crossbar , the crossbar is mounted on a motor driving the left wheel saws , the left and right saw blade is mounted between the wheels , the rack is mounted on the beam motor drive shaft about double worm , worm drive around the left and right worm , worm around a wire of the mechanical drive for adjusting the left and right sleeve , so the mechanical wire nut connections via the left and right sleeve , the said one end of said wheel saw with bosses , left and ceramic tile saw right axle center line of the angle of less than 100 .
Main motor : 37KW-55KW: about lifting motor 2.5KW.
Total power :42-65KW
Saw Installation : 1600SM, 1800SM, 2200SM diamond saw blades "Optional"
Installation size: 11000 mm × 7000 mm stone processing size: 3 cubic
Disc Diamond Stone Saw HQJ-2200 multifunction stone sawing machine , saw blade can be installed 1600SM, 1800SM, 2200SM diamond saw . Whole structure consists of a fixed base connected on two pillars and PCD grinding wheel two columns on the top rack of the upper beam composition , characterized in that : the left and right wheel saw through the left and right axle mounted on the left and right axle seat, left right column shaft seat and slidable along the sleeve as a whole , the left and right sleeve is provided with locking means , the left and right sleeve integrally connected via the sds drill bits crossbar , the crossbar is mounted on a motor driving the left wheel saws , the left and right saw blade is mounted between the wheels , the rack is mounted on the beam motor drive shaft about double worm , worm drive around the left and right worm , worm around a wire of the mechanical drive for adjusting the left and right sleeve , so the mechanical wire nut connections via the left and right sleeve , the said one end of said wheel saw with bosses , left and ceramic tile saw right axle center line of the angle of less than 100 .
Main motor : 37KW-55KW: about lifting motor 2.5KW.
Total power :42-65KW
Saw Installation : 1600SM, 1800SM, 2200SM diamond saw blades "Optional"
Installation size: 11000 mm × 7000 mm stone processing size: 3 cubic
2013年9月24日星期二
diamond superhard material properties and role Diamond
Superhard materials as superior performance, application constantly expanding, from the developed to the metal processing optical glass processing, stone processing, ceramics processing, processing of brittle materials is difficult for traditional processing areas.
Natural single crystal diamond, because of its anisotropy, the difference of the hardness of the crystal is very diamond blades large, in the grinding tool when choosing the soft side of a polishing surface, and the surface of their hard as the rake face or the flank, This brings a favorable ground conditions, its anisotropy, so in use, to be considered a reasonable choice of the crystal plane, for example, hardness of the anvil, in use, the use of pressure is measured in or bouncing measured hardness of the material, but because of the hardness of different face, the results are different, of course, with a hard surface will help prolong life, and if made of natural diamond wire drawing die, because the hole face constituted by the crystal surface, so inconsistent hardness, wear will be uniform, circular cross section while the wire will cause stress differences uneven hardness, and affect the use of diamond sintered body and the thick-film diamond, the isotropic use in such products become very favorable.
PCD, PCBN, because grains are different, different concentrations, the performance is different, must be a diamond cbn wheel reasonable choice. Diamond is a pure diamond thick, close to the hardness of natural diamond, and PCD, PCDN diamond powder is mixed with the binding agent is sintered, so by the binding agent of the hardness, the hardness as the former.
Is well known, diamond with iron affinity, can be used in ferrous and non-metallic materials, while CBN even at a high temperature of 1000 ℃ cutting ferrous metal is fully competent. Has become difficult to machine materials, the main cutting tool materials. Superhard materials generally refers to a synthetic diamond, artificial CBN. These two materials exist, played a complementary role, you can overwrite the current and future concrete ring saw development of a variety of new materials processing, the entire cutting areas is extremely beneficial.
Precision diamond cutting tool sharpening requires great skill, in order to obtain a more accurate cutting edge radius, in particular less than 0.05um less precision, and of the grinding machine made very strict requirements, must have a high turn precision spindle shaft, the old mill were not suited, began to use more as a support air bearings, grinding disc must be able to be on the machine Shuhei to face runout control 0.5um or less. PCD and PCBN the grinding is relatively easy because the hardness is relatively low, with a diamond grinding wheel will fit, while thick diamond is different, its hardness close to the natural diamond, and is isotropic, so grinding more difficult .
Natural single crystal diamond, because of its anisotropy, the difference of the hardness of the crystal is very diamond blades large, in the grinding tool when choosing the soft side of a polishing surface, and the surface of their hard as the rake face or the flank, This brings a favorable ground conditions, its anisotropy, so in use, to be considered a reasonable choice of the crystal plane, for example, hardness of the anvil, in use, the use of pressure is measured in or bouncing measured hardness of the material, but because of the hardness of different face, the results are different, of course, with a hard surface will help prolong life, and if made of natural diamond wire drawing die, because the hole face constituted by the crystal surface, so inconsistent hardness, wear will be uniform, circular cross section while the wire will cause stress differences uneven hardness, and affect the use of diamond sintered body and the thick-film diamond, the isotropic use in such products become very favorable.
PCD, PCBN, because grains are different, different concentrations, the performance is different, must be a diamond cbn wheel reasonable choice. Diamond is a pure diamond thick, close to the hardness of natural diamond, and PCD, PCDN diamond powder is mixed with the binding agent is sintered, so by the binding agent of the hardness, the hardness as the former.
Is well known, diamond with iron affinity, can be used in ferrous and non-metallic materials, while CBN even at a high temperature of 1000 ℃ cutting ferrous metal is fully competent. Has become difficult to machine materials, the main cutting tool materials. Superhard materials generally refers to a synthetic diamond, artificial CBN. These two materials exist, played a complementary role, you can overwrite the current and future concrete ring saw development of a variety of new materials processing, the entire cutting areas is extremely beneficial.
Precision diamond cutting tool sharpening requires great skill, in order to obtain a more accurate cutting edge radius, in particular less than 0.05um less precision, and of the grinding machine made very strict requirements, must have a high turn precision spindle shaft, the old mill were not suited, began to use more as a support air bearings, grinding disc must be able to be on the machine Shuhei to face runout control 0.5um or less. PCD and PCBN the grinding is relatively easy because the hardness is relatively low, with a diamond grinding wheel will fit, while thick diamond is different, its hardness close to the natural diamond, and is isotropic, so grinding more difficult .
2013年9月22日星期日
tungsten carbide steel tool material Basics
Carbide is the most widely used class of high-speed machining (HSM) tool materials, such materials are produced by powder metallurgy process, made of hard carbide (usually tungsten carbide WC) particles and the soft texture of the metal bond components. Currently, there crack chaser are hundreds of different components of WC-based cemented carbide, the majority of them are used cobalt (Co) as a binder, nickel (Ni) and chromium (Cr) element is also commonly used binding agent, also can add other Some alloying elements. Why are there so many carbide grade? Tool manufacturers how to choose a particular cutting tool material correct? To answer these questions, let us look to make it an ideal tool material Carbide various characteristics.
Hardness and toughness
WC-Co cemented carbide in both hardness and toughness has a unique advantage. Tungsten carbide (WC) itself has a high hardness (more than corundum or aluminum oxide), and at elevated temperature hardness are rarely reduced. However, it lacks sufficient toughness, which is essential for the performance of the cutting tool. To take advantage of the high hardness of tungsten carbide and improve the toughness, people use the tungsten metal bonded together, so that the material is both far more than the hardness of high-speed steel, while able to withstand the cutting process, in most cutting force. In grinding cup wheels addition, it can withstand high-speed machining heat generated by the cutting.
Today, almost all of the WC-Co cutting tool inserts are used and the coating, therefore, the base material may seem less important role. But in fact, it is WC-Co materials with high elastic modulus (a measure of the stiffness of, WC-Co at room temperature modulus of elasticity is about three times as high speed steel) for the coating of a substrate without distortion. WC-Co substrate can provide the necessary toughness. These properties are WC-Co materials, basic characteristics, but can also be produced when the carbide powder, by adjusting the material composition and material properties tailored microstructure. Therefore, the tool performance and suitability of a particular processing depends largely on the initial milling process.
Milling process
Tungsten carbide powder is through the tungsten (W) powder obtained by carburizing treatment. Tungsten carbide powder characteristics (in particular its size) depends on the particle size of raw material powders of tungsten and carburization temperature and time. Chemical control is also critical, the carbon content must be kept constant (close to the weight ratio of 6.13% of the theoretical value). In order to control the subsequent step by the particle size, can be added before the carburizing treatment a small amount of vanadium and / or chromium. Downstream of different process conditions and the type of final machining applications require the router bits use of specific particle size of tungsten carbide, carbon content, vanadium content and chromium content in combination, a combination of these changes, can produce a variety of tungsten carbide powder. For example, tungsten carbide powder manufacturer ATI Alldyne company produced a total of 23 kinds of standard grades of tungsten carbide powder, and customized according to user requirements up to standard grades of tungsten carbide powder, tungsten carbide powder varieties more than 5 times.
When the metal bonded tungsten carbide powder and mixed together to produce a milled powder carbide grades, you can use a variety of combinations. The most common cobalt content of 3% to 25% (by weight), and the tool need to enhance corrosion resistance in the case of nickel and chromium needs to be added. In addition, you can also add other alloy components, and further improvement of the metal binding agent. For example, in the WC-Co cemented carbide adding ruthenium can be made without the premise of reducing the hardness significantly increase its toughness. Increase the binding agent content can also increase the toughness of the alloy, but will reduce its hardness.
Reducing the particle size of tungsten carbide hardness of the material can be improved, but in the sintering process, the tungsten carbide particle size must remain unchanged. Sintering, the tungsten carbide particles re-precipitated by dissolving process combines and growth. In the actual sintering process, in order to form a fully dense material, a metal binding agent to a liquid state (known as liquid phase sintering). By adding other transition metal carbides, including vanadium carbide (VC), chromium carbide (Cr3C2), titanium carbide (TiC), tantalum carbide (TaC) and niobium carbide (NbC), tungsten carbide particles can control the growth rate. These metals usually in the tungsten carbide powder and a metal binding agent is mixed with the milled added, although chromium carbide and vanadium carbide and tungsten carbide powder may also be formed when carburizing.
Recycled scrap carbide materials can be produced grades of tungsten carbide powder. Waste recycling and reuse of carbide in cemented carbide industry has a long history, is the entire economic chain of the industry is an important part, it helps to reduce material costs, conserve natural resources and avoid waste material and non- harm and disposal. Generally used cemented carbide by APT (ammonium paratungstate) process, or through a zinc recovery process for reuse after pulverization. The "regeneration" generally have a better carbide powder, predictable compactness, because of its surface area ratio is made directly through the carburization process of tungsten carbide powder is smaller.
Metal bonded tungsten carbide powder and mixing the milled processing conditions is crucial parameters. The two most common technique is ball milling and ultrafine grinding. Both processes can be uniformly mixed so that the milled powder, and to reduce the particle size. After the workpiece is pressed with sufficient strength to maintain the shape of the workpiece, and to an operator or robot can pick up the work operation, the milling usually also need to add an organic binding agent. The chemical composition of this combination is pressed into the workpiece can affect the density and strength. In order to facilitate operations, it is best to add high-strength bonding agent, but this will lead to suppression of lower density, which may result in lumps, causing a defect in the final product.
After the completion of milling, spray dried powder typically be generated from an organic binding agent that binds free flowing agglomerates. By adjusting the composition of the organic binder, these clumps can be customized mobility and charge density. By filtering out the coarse or fine particles, agglomerates can be further customized particle size distribution, to ensure that when the mold cavity is loaded with good fluidity.
Workpiece manufacturing
Carbide workpiece using a variety of craft molding methods. According to the workpiece size, shape, complexity level and production volume, most of the cutting blades are pressed by the top and bottom compression molded rigid mold. At each time of pressing, in order to maintain the consistency of the workpiece weight and size, to ensure the powder in the cavity (mass and volume) are identical. Powder flow mainly through the agglomerate size distribution and the characteristics of the organic binding agent to control. Loading the mold cavity by applying a powder 10-80ksi (one thousand pounds / square foot) of the molding pressure, the molded piece can be formed (or "blanks").
Hardness and toughness
WC-Co cemented carbide in both hardness and toughness has a unique advantage. Tungsten carbide (WC) itself has a high hardness (more than corundum or aluminum oxide), and at elevated temperature hardness are rarely reduced. However, it lacks sufficient toughness, which is essential for the performance of the cutting tool. To take advantage of the high hardness of tungsten carbide and improve the toughness, people use the tungsten metal bonded together, so that the material is both far more than the hardness of high-speed steel, while able to withstand the cutting process, in most cutting force. In grinding cup wheels addition, it can withstand high-speed machining heat generated by the cutting.
Today, almost all of the WC-Co cutting tool inserts are used and the coating, therefore, the base material may seem less important role. But in fact, it is WC-Co materials with high elastic modulus (a measure of the stiffness of, WC-Co at room temperature modulus of elasticity is about three times as high speed steel) for the coating of a substrate without distortion. WC-Co substrate can provide the necessary toughness. These properties are WC-Co materials, basic characteristics, but can also be produced when the carbide powder, by adjusting the material composition and material properties tailored microstructure. Therefore, the tool performance and suitability of a particular processing depends largely on the initial milling process.
Milling process
Tungsten carbide powder is through the tungsten (W) powder obtained by carburizing treatment. Tungsten carbide powder characteristics (in particular its size) depends on the particle size of raw material powders of tungsten and carburization temperature and time. Chemical control is also critical, the carbon content must be kept constant (close to the weight ratio of 6.13% of the theoretical value). In order to control the subsequent step by the particle size, can be added before the carburizing treatment a small amount of vanadium and / or chromium. Downstream of different process conditions and the type of final machining applications require the router bits use of specific particle size of tungsten carbide, carbon content, vanadium content and chromium content in combination, a combination of these changes, can produce a variety of tungsten carbide powder. For example, tungsten carbide powder manufacturer ATI Alldyne company produced a total of 23 kinds of standard grades of tungsten carbide powder, and customized according to user requirements up to standard grades of tungsten carbide powder, tungsten carbide powder varieties more than 5 times.
When the metal bonded tungsten carbide powder and mixed together to produce a milled powder carbide grades, you can use a variety of combinations. The most common cobalt content of 3% to 25% (by weight), and the tool need to enhance corrosion resistance in the case of nickel and chromium needs to be added. In addition, you can also add other alloy components, and further improvement of the metal binding agent. For example, in the WC-Co cemented carbide adding ruthenium can be made without the premise of reducing the hardness significantly increase its toughness. Increase the binding agent content can also increase the toughness of the alloy, but will reduce its hardness.
Reducing the particle size of tungsten carbide hardness of the material can be improved, but in the sintering process, the tungsten carbide particle size must remain unchanged. Sintering, the tungsten carbide particles re-precipitated by dissolving process combines and growth. In the actual sintering process, in order to form a fully dense material, a metal binding agent to a liquid state (known as liquid phase sintering). By adding other transition metal carbides, including vanadium carbide (VC), chromium carbide (Cr3C2), titanium carbide (TiC), tantalum carbide (TaC) and niobium carbide (NbC), tungsten carbide particles can control the growth rate. These metals usually in the tungsten carbide powder and a metal binding agent is mixed with the milled added, although chromium carbide and vanadium carbide and tungsten carbide powder may also be formed when carburizing.
Recycled scrap carbide materials can be produced grades of tungsten carbide powder. Waste recycling and reuse of carbide in cemented carbide industry has a long history, is the entire economic chain of the industry is an important part, it helps to reduce material costs, conserve natural resources and avoid waste material and non- harm and disposal. Generally used cemented carbide by APT (ammonium paratungstate) process, or through a zinc recovery process for reuse after pulverization. The "regeneration" generally have a better carbide powder, predictable compactness, because of its surface area ratio is made directly through the carburization process of tungsten carbide powder is smaller.
Metal bonded tungsten carbide powder and mixing the milled processing conditions is crucial parameters. The two most common technique is ball milling and ultrafine grinding. Both processes can be uniformly mixed so that the milled powder, and to reduce the particle size. After the workpiece is pressed with sufficient strength to maintain the shape of the workpiece, and to an operator or robot can pick up the work operation, the milling usually also need to add an organic binding agent. The chemical composition of this combination is pressed into the workpiece can affect the density and strength. In order to facilitate operations, it is best to add high-strength bonding agent, but this will lead to suppression of lower density, which may result in lumps, causing a defect in the final product.
After the completion of milling, spray dried powder typically be generated from an organic binding agent that binds free flowing agglomerates. By adjusting the composition of the organic binder, these clumps can be customized mobility and charge density. By filtering out the coarse or fine particles, agglomerates can be further customized particle size distribution, to ensure that when the mold cavity is loaded with good fluidity.
Workpiece manufacturing
Carbide workpiece using a variety of craft molding methods. According to the workpiece size, shape, complexity level and production volume, most of the cutting blades are pressed by the top and bottom compression molded rigid mold. At each time of pressing, in order to maintain the consistency of the workpiece weight and size, to ensure the powder in the cavity (mass and volume) are identical. Powder flow mainly through the agglomerate size distribution and the characteristics of the organic binding agent to control. Loading the mold cavity by applying a powder 10-80ksi (one thousand pounds / square foot) of the molding pressure, the molded piece can be formed (or "blanks").
2013年9月21日星期六
What kind of a good grinding material
Solve difficult grinding material grinding through: a reasonable choice of grinding wheel, grinding dosage, grinding fluid and grinding process method.A ) a reasonable choice of grinding wheel grinding wheel features a reasonable choice is to solve the difficult material grinding mill is one important way ( 1 ) Select the appropriate abrasive . Grinding hard grind material often used corundum (wA), zirconium corundum (zA), monocrystalline corundum (SA), microcrystalline corundum (MA), green tct circular saw blade silicon carbide (GC) and cubic boron nitride abrasive . Such as the use of zirconium corundum grinding 1Crl8Ni9Ti such as stainless steel , not only high grinding efficiency , but also easy to produce burns ; using monocrystalline corundum grinding ordinary high-speed steel and high vanadium high speed steel , stainless steel and GH2132, GH901 superalloy such as high hardness, toughness of material effect has been achieved ; green silicon carbide grinding wheel with titanium, microcrystalline corundum grinding ductile iron which was also very effective . Sometimes in order to solve some hard material grinding mill , using several different proportions mixing abrasive wheel , the grinding effect than a single abrasive grinding wheels are good. As with corundum 80% + 20% of the mixed green silicon carbide abrasive grinding wheel nickel-base superalloy , using single-crystal mixture of corundum and microcrystalline corundum abrasive wheel, grinding aluminum high-speed steel , can solve the problem of burns .
( 2 ) use of two different particle size abrasive . Chosen by a certain percentage is made of two different particle size abrasive wheel , grinding wheels help to improve durability.
( 3 ) the appropriate choice of wheel hardness and texture . Mill grinding hard materials should be selected hardness is low, loose tissue of the wheel. This is because the low hardness of grinding wheels, abrasive grinding process in easy to fall off , the wheel surface to obtain a new sharp cutting edges , thus grinding and grinding , lower temperature , easy to cause T surface burns, improve wear debris the grinding wheel working surface tackiness . In order to solve superalloy GH90l, GH2132 other grinding of the problem, the use of large pores wheel loose tissue , a significant good results. But wheel loose tissue , but also by grinding plus T precision requirement. Because the wheel loose tissue , wheel hardness is too soft for maintaining precision has a downside , it must be moderate.
2 ) a reasonable choice of grinding parameters
( 1) The wheel speed selection . In the concrete saws general case , the grinding wheel speed is difficult to grind the material should be less than 35m / s. However, some high-speed grinding hard grind materials , but also have a good effect . Such as the selection wheel speed u. = 55m / s Grinding ] Crl8Ni9Ti, its production efficiency and durability than the general grinding wheel wheel speed increased by 1 . Using υc = 60m / s , high-temperature alloy GH2132 grinding , the grinding efficiency can also l times . However, the adoption of green silicon carbide grinding wheel titanium alloy , you have to use υc = 17m / s lower wheel speed , so get up to 25 of the grinding ratio .
( 2 ) grinding depth . As hard material grinding mill poor , in normal circumstances , you should use a small grinding depth . Such as the use of green silicon carbide grinding wheel TC4 titanium alloy , with a smaller grinding depth , you can get a higher grinding ratio and concrete vibrator a larger amount of metal removal . But in a υc = 50m / s vertical grinding ductile iron , they should adopt a larger 0.1mm grinding depth , when grinding depth αP (0.0l-0.02) mm , the wheel but easily blocked, accelerated wheel blunt technology .
( 3 ) Workpiece speed. The higher the speed of the workpiece should be used to reduce or prevent the workpiece burn . However, using deep creep feed grinding , in order to avoid burns, should opt for a lower workpiece speed.
( 2 ) use of two different particle size abrasive . Chosen by a certain percentage is made of two different particle size abrasive wheel , grinding wheels help to improve durability.
( 3 ) the appropriate choice of wheel hardness and texture . Mill grinding hard materials should be selected hardness is low, loose tissue of the wheel. This is because the low hardness of grinding wheels, abrasive grinding process in easy to fall off , the wheel surface to obtain a new sharp cutting edges , thus grinding and grinding , lower temperature , easy to cause T surface burns, improve wear debris the grinding wheel working surface tackiness . In order to solve superalloy GH90l, GH2132 other grinding of the problem, the use of large pores wheel loose tissue , a significant good results. But wheel loose tissue , but also by grinding plus T precision requirement. Because the wheel loose tissue , wheel hardness is too soft for maintaining precision has a downside , it must be moderate.
2 ) a reasonable choice of grinding parameters
( 1) The wheel speed selection . In the concrete saws general case , the grinding wheel speed is difficult to grind the material should be less than 35m / s. However, some high-speed grinding hard grind materials , but also have a good effect . Such as the selection wheel speed u. = 55m / s Grinding ] Crl8Ni9Ti, its production efficiency and durability than the general grinding wheel wheel speed increased by 1 . Using υc = 60m / s , high-temperature alloy GH2132 grinding , the grinding efficiency can also l times . However, the adoption of green silicon carbide grinding wheel titanium alloy , you have to use υc = 17m / s lower wheel speed , so get up to 25 of the grinding ratio .
( 2 ) grinding depth . As hard material grinding mill poor , in normal circumstances , you should use a small grinding depth . Such as the use of green silicon carbide grinding wheel TC4 titanium alloy , with a smaller grinding depth , you can get a higher grinding ratio and concrete vibrator a larger amount of metal removal . But in a υc = 50m / s vertical grinding ductile iron , they should adopt a larger 0.1mm grinding depth , when grinding depth αP (0.0l-0.02) mm , the wheel but easily blocked, accelerated wheel blunt technology .
( 3 ) Workpiece speed. The higher the speed of the workpiece should be used to reduce or prevent the workpiece burn . However, using deep creep feed grinding , in order to avoid burns, should opt for a lower workpiece speed.
2013年9月17日星期二
Sharpening drill main master a few tips
1, the edge of the grinding wheel surface to settle .
Grinding bit before the first bit of the main cutting edge of the grinding wheel surface placed on a level surface , that Plate Compactor is, to ensure the contact edge grinding surface, the blade to be ground . This is the bit position of the first step and the wheel relative to the position and then slowly to gracefully by grinding the surface .
2, the bit axis oblique to the surface with the wheel angle of 60 ° .
This angle is the angle of the drill front , then the angle is wrong, will directly affect the size and angle drill main cutting edge shape and chisel edge angle . This is the bit line and the wheel axis of the positional relationship between the surface , taking the line 60 ° , this angle is generally more accurate to see . Here we note that the relative levels before the drill grinding and angular positions , both overall plans , do not neglect to settle edge gracefully degree angle , or the angle to gracefully while ignoring settle edge .
3 , followed by the grinding edge back .
After contacting wheel edge , from the cutting edge to the back of the main mill , that is from the drill edge first came into contact with wheels, then slowly down along the entire flank wear . Drill cut can gently touch wheel , the first for a smaller amount of sharpening , and observe the spark uniformity, timely adjustment of hand size of the pressure , but also pay attention to the drill bit cool , not be allowed to wear too much, causing discoloration edge , and to the edge annealing . Discovery edge temperature is high, the drill should be promptly cooled .
4 blade to swing up and down the drill , drill the tail can not be warped .
This is a standard drill grinding operation , the main cutting edge to swing up and down on the wheel , that is, the front of the hand grip drill evenly to the surface of the wheel of the drill bit up and masonry drill bits down. The hand grip part can not swing , but also to prevent the rear handle to the upturned , that can not drill the tail above the horizontal centerline Gao Qiao Yu wheel , otherwise it would blunt edge , not cutting . This is the most critical step drill bit worn good or bad, and this has a great relationship . In almost worn when started from the edge , back angle and then gently rub a bit so that the back is more smooth some of the edges .
5, to ensure cutting edge right axis symmetrical on both sides slowly repair .
After grinding the side edge , and then grind the other side of the blade , blade must ensure that the axis of the drill in the middle of both sides of the blade to be symmetrical . Experienced master will look toward the light drill tip symmetry , proceed slowly grinding . After the drill cutting edge angle is generally 10 ° -14 °, posterior horn of the big, the cutting edge is too thin , powerful vibration when drilling , triangular or pentagonal orifice was the chip acicular ; posterior horn of the small, axial force when drilling large, easy to cut , cutting force increases, the temperature rise hole saw blades big , drill severe fever , not even drilling . Angle after angle grinding suitable Feng-Jian pairs, two-edged symmetrical , drilling , drill chip light, no vibration, aperture is not expanded.
6 , two after a good grinding of larger diameter drill bit drill grinding also pay attention to Feng-Jian .
Grinding bit before the first bit of the main cutting edge of the grinding wheel surface placed on a level surface , that Plate Compactor is, to ensure the contact edge grinding surface, the blade to be ground . This is the bit position of the first step and the wheel relative to the position and then slowly to gracefully by grinding the surface .
2, the bit axis oblique to the surface with the wheel angle of 60 ° .
This angle is the angle of the drill front , then the angle is wrong, will directly affect the size and angle drill main cutting edge shape and chisel edge angle . This is the bit line and the wheel axis of the positional relationship between the surface , taking the line 60 ° , this angle is generally more accurate to see . Here we note that the relative levels before the drill grinding and angular positions , both overall plans , do not neglect to settle edge gracefully degree angle , or the angle to gracefully while ignoring settle edge .
3 , followed by the grinding edge back .
After contacting wheel edge , from the cutting edge to the back of the main mill , that is from the drill edge first came into contact with wheels, then slowly down along the entire flank wear . Drill cut can gently touch wheel , the first for a smaller amount of sharpening , and observe the spark uniformity, timely adjustment of hand size of the pressure , but also pay attention to the drill bit cool , not be allowed to wear too much, causing discoloration edge , and to the edge annealing . Discovery edge temperature is high, the drill should be promptly cooled .
4 blade to swing up and down the drill , drill the tail can not be warped .
This is a standard drill grinding operation , the main cutting edge to swing up and down on the wheel , that is, the front of the hand grip drill evenly to the surface of the wheel of the drill bit up and masonry drill bits down. The hand grip part can not swing , but also to prevent the rear handle to the upturned , that can not drill the tail above the horizontal centerline Gao Qiao Yu wheel , otherwise it would blunt edge , not cutting . This is the most critical step drill bit worn good or bad, and this has a great relationship . In almost worn when started from the edge , back angle and then gently rub a bit so that the back is more smooth some of the edges .
5, to ensure cutting edge right axis symmetrical on both sides slowly repair .
After grinding the side edge , and then grind the other side of the blade , blade must ensure that the axis of the drill in the middle of both sides of the blade to be symmetrical . Experienced master will look toward the light drill tip symmetry , proceed slowly grinding . After the drill cutting edge angle is generally 10 ° -14 °, posterior horn of the big, the cutting edge is too thin , powerful vibration when drilling , triangular or pentagonal orifice was the chip acicular ; posterior horn of the small, axial force when drilling large, easy to cut , cutting force increases, the temperature rise hole saw blades big , drill severe fever , not even drilling . Angle after angle grinding suitable Feng-Jian pairs, two-edged symmetrical , drilling , drill chip light, no vibration, aperture is not expanded.
6 , two after a good grinding of larger diameter drill bit drill grinding also pay attention to Feng-Jian .
2013年9月16日星期一
Saw some of the major considerations
1, the operator operates on protective equipment should be worn before : such as safety shoes, safety glasses, hard hats, ear armor .
2, the cutting machine should have guards or other safety devices .
3 , check the blade for damage masonry drill bits before use , severely deformed , if damaged strictly prohibited.
4, check the cutting machine chuck is dirty , dirty to clean up after the installation when the spindle or spindle bearings or bushings are badly worn , replace badly worn bushings or new equipment .
5 , when the blade is installed , it must be marked on the blade in the direction consistent with the direction of rotation of the cutting machine . Direction inconsistent phenomena likely to cause cut does not move .
6 , when used if it is wet cutting blade , please add enough cool water .
7 , using a cutting blade if it is dry , dry cutting every 10 to 15 seconds to spin a few seconds to cool the blade , the larger the depth of cut should be step cut, dry cutting blade cooling water cutting, would be more effective .
8 , curve cutting cutting process allowed , not carbide tipped saw blade allowed to use the side grinding , cutting and side wear curve is likely to cause the blade to use crack, or break off the block matrix .
9 , if the cutting is tilted cutting, cutting depth should not be too large , the cutting process must pay attention to safety , try not to let your body and the blade on a flat surface , the cutting process hear abnormal sounds should immediately stop cutting and check that the blade is damaged, or check the blade mounting screws are loose .
10 , in the course of the event of blockage blade , the blade will become dull , use ceramic or refractory to re-open blade wheel ( the blade that is refractory ceramic grinding wheel or knife , cut a dozen ) , to re- open the blade can be restored after sharpness . 11 , when metal drill bits the cutting process encountered noise, vibration powerful, should be immediately stopped to check whether the blade cracks or chunking , cracks and off the block , the need to replace the film .
12 , cutting saw blade cutting material 2mm more than the material being cut can reduce the extent of side bang .
13 , if the pore size and cutter blade spindle is not met, can be coupled with appropriate size washers, but should pay attention to during the cutting blade with jitter phenomenon , some words will have to check whether the washer off . If you continue to use washer off , can easily cause the blade when cutting jitter , resulting in loss of circular saw blades and can not continue to use. The side that lost a round blade saw blade wear much less wear and tear on one side , you can see the head from the appearance of the different levels of high and low wear .
2, the cutting machine should have guards or other safety devices .
3 , check the blade for damage masonry drill bits before use , severely deformed , if damaged strictly prohibited.
4, check the cutting machine chuck is dirty , dirty to clean up after the installation when the spindle or spindle bearings or bushings are badly worn , replace badly worn bushings or new equipment .
5 , when the blade is installed , it must be marked on the blade in the direction consistent with the direction of rotation of the cutting machine . Direction inconsistent phenomena likely to cause cut does not move .
6 , when used if it is wet cutting blade , please add enough cool water .
7 , using a cutting blade if it is dry , dry cutting every 10 to 15 seconds to spin a few seconds to cool the blade , the larger the depth of cut should be step cut, dry cutting blade cooling water cutting, would be more effective .
8 , curve cutting cutting process allowed , not carbide tipped saw blade allowed to use the side grinding , cutting and side wear curve is likely to cause the blade to use crack, or break off the block matrix .
9 , if the cutting is tilted cutting, cutting depth should not be too large , the cutting process must pay attention to safety , try not to let your body and the blade on a flat surface , the cutting process hear abnormal sounds should immediately stop cutting and check that the blade is damaged, or check the blade mounting screws are loose .
10 , in the course of the event of blockage blade , the blade will become dull , use ceramic or refractory to re-open blade wheel ( the blade that is refractory ceramic grinding wheel or knife , cut a dozen ) , to re- open the blade can be restored after sharpness . 11 , when metal drill bits the cutting process encountered noise, vibration powerful, should be immediately stopped to check whether the blade cracks or chunking , cracks and off the block , the need to replace the film .
12 , cutting saw blade cutting material 2mm more than the material being cut can reduce the extent of side bang .
13 , if the pore size and cutter blade spindle is not met, can be coupled with appropriate size washers, but should pay attention to during the cutting blade with jitter phenomenon , some words will have to check whether the washer off . If you continue to use washer off , can easily cause the blade when cutting jitter , resulting in loss of circular saw blades and can not continue to use. The side that lost a round blade saw blade wear much less wear and tear on one side , you can see the head from the appearance of the different levels of high and low wear .
Saw is the most indispensable tools
In diamond products industry, we all know, is called fine machining tool blade terminal and intermediate products is essential for class materials .
In recent years, as domestic production of synthetic diamond material and labor costs increase, the superhard material , diamond prices wet saw blades soaring , derived diamond wheel and saw reflected in the most obvious, because some local SMEs can not afford the increased cost pressures have been eliminated , but the market is not saturated trend , we can say the diamond industry is still a long time very popular in the industry , diamond buy and supply has not been much affected , but also brought some adverse market effects , a number of diamond companies in order to reduce the cost of inputs , nor increase the business of innovation support, making part of the product and a serious lack of similar foreign products, the competitiveness of the diamond , the diamond tools , the price increases Meanwhile, the diamond tool manufacturer domestic sales continue to decline foreign orders continue to increase, so we should take into account , regardless of the industry in innovation is the driving force of life , saw no exception , even though industry segment is uneven, we should always bear in mind .
In the diamond industry, from the year before , abrasives in the market, sales have gradually increased , according to media reports South Huanghe Whirlwind two diamond diamonds and large enterprises respectively, of its efforts to increase the input-output , recently Jiangyin Juan Tong Guangzhou Abrasives Factory workers increased blade production to meet market demand, these indicate that the diamond industry in the country's development potential of no less than abroad.
Behind diamond prices reflected market effects , not hole saw blades only that we need to increase the industry 's innovation, but we need to do to market demands better planning and preparation, price increases are not limited to the entire industry, how the prices at the same time to find a breakthrough in the industry , this is the diamond industry is currently ask for consideration. Insist on doing quality , the market will give you a good feedback , which is our usual practice , we have been strengthening product development.
In recent years, as domestic production of synthetic diamond material and labor costs increase, the superhard material , diamond prices wet saw blades soaring , derived diamond wheel and saw reflected in the most obvious, because some local SMEs can not afford the increased cost pressures have been eliminated , but the market is not saturated trend , we can say the diamond industry is still a long time very popular in the industry , diamond buy and supply has not been much affected , but also brought some adverse market effects , a number of diamond companies in order to reduce the cost of inputs , nor increase the business of innovation support, making part of the product and a serious lack of similar foreign products, the competitiveness of the diamond , the diamond tools , the price increases Meanwhile, the diamond tool manufacturer domestic sales continue to decline foreign orders continue to increase, so we should take into account , regardless of the industry in innovation is the driving force of life , saw no exception , even though industry segment is uneven, we should always bear in mind .
In the diamond industry, from the year before , abrasives in the market, sales have gradually increased , according to media reports South Huanghe Whirlwind two diamond diamonds and large enterprises respectively, of its efforts to increase the input-output , recently Jiangyin Juan Tong Guangzhou Abrasives Factory workers increased blade production to meet market demand, these indicate that the diamond industry in the country's development potential of no less than abroad.
Behind diamond prices reflected market effects , not hole saw blades only that we need to increase the industry 's innovation, but we need to do to market demands better planning and preparation, price increases are not limited to the entire industry, how the prices at the same time to find a breakthrough in the industry , this is the diamond industry is currently ask for consideration. Insist on doing quality , the market will give you a good feedback , which is our usual practice , we have been strengthening product development.
2013年9月12日星期四
Cylindrical grinding wheel diamond tips
Under normal circumstances , diamond wheel , there are four cylindrical grinding techniques , the following are brief .
1 diamond grinding wheel vertical way . The efficiency of this method is relatively slow , but its quality is very good , relatively speaking , and similar products is relatively concrete core bits low compared to the roughness . When the grinding , diamond grinding wheel rotation is very high , is seen in the rotation process . Workbench is a composite longitudinal operation , during each operation or process in the wheel will have a supply , the excess will be touched off something cut off .
(2) into the grinding skills. Also known as horizontal milling method . This and the first one is relatively speaking very efficient , it also has the same shortcomings, its grinding force is very large, and the temperature is relatively high , so there should be plenty of grinding cup wheel time grinding the cooling liquid . Diamond grinding wheel rotation is an active force , craft and wheel rotational movement causes a continuous movement of supplies. The table is not a wheel vertical movement operation , the width of the diamond grinding wheel width is relatively large, has been the size of the ground to use it so far.
3 composite grinding skills. This is a synthesis of the above two . Composite grinding and grinding methods are more efficient , the relative quality ; it is rather good, in the other advantages also have some advantages . Grinding , we use the workpiece in the form of coarse segmentation , with the rest of the disc treatment .
4 The last method is a deep grinding method . Its glass blades production efficiency is very high, but the wheel repair technique is more complex, the overall structure of the workpiece requirements are relatively high , there must be plenty of cut and cut lengths. During the grinding time . Wheel a whole will have a stepped shape. The speed of the workpiece and the means are very slow. Use the rest of the grinding Longitudinal grinding .
1 diamond grinding wheel vertical way . The efficiency of this method is relatively slow , but its quality is very good , relatively speaking , and similar products is relatively concrete core bits low compared to the roughness . When the grinding , diamond grinding wheel rotation is very high , is seen in the rotation process . Workbench is a composite longitudinal operation , during each operation or process in the wheel will have a supply , the excess will be touched off something cut off .
(2) into the grinding skills. Also known as horizontal milling method . This and the first one is relatively speaking very efficient , it also has the same shortcomings, its grinding force is very large, and the temperature is relatively high , so there should be plenty of grinding cup wheel time grinding the cooling liquid . Diamond grinding wheel rotation is an active force , craft and wheel rotational movement causes a continuous movement of supplies. The table is not a wheel vertical movement operation , the width of the diamond grinding wheel width is relatively large, has been the size of the ground to use it so far.
3 composite grinding skills. This is a synthesis of the above two . Composite grinding and grinding methods are more efficient , the relative quality ; it is rather good, in the other advantages also have some advantages . Grinding , we use the workpiece in the form of coarse segmentation , with the rest of the disc treatment .
4 The last method is a deep grinding method . Its glass blades production efficiency is very high, but the wheel repair technique is more complex, the overall structure of the workpiece requirements are relatively high , there must be plenty of cut and cut lengths. During the grinding time . Wheel a whole will have a stepped shape. The speed of the workpiece and the means are very slow. Use the rest of the grinding Longitudinal grinding .
The introduction of the surface roughness of diamond grinding wheel
What is a diamond grinding wheel surface roughness it, the following is a specific description:
The machined parts diamond grinding wheel surface , there will always be some macro and micro geometry errors , part on the surface of microscopic diamond wheel geometry error is determined by masonry saw blades the parts on the surface of a series of tiny diamond wheel spacing valley formed , these tiny undulating valley called the degree of surface roughness of diamond wheel parts .
Surface roughness is a measure of diamond wheel diamond grinding wheel surface machining precision parts is an important indicator of the surface roughness of diamond wheel parts will affect edge polishing pads the level of two parts in contact with the surface of the diamond wheel friction , motion surface wear , the bonding surface sealing , with a surface of the working precision , the fatigue strength of the rotary member , the appearance of parts , etc., even on the part of diamond grinding wheel has an impact on the corrosion resistance of the surface . Diamond grinding wheel abrasive concentration on superhard materials grinding effect to a certain extent , the concentration is too high or too low can cause premature loss of tct saw blades the abrasive , the diamond grinding wheel wear and tear costs, so the choice of abrasive concentration is also critical when step. Experimental results show that the coarse grinding , higher concentrations can be selected to increase the effective abrasive grains per unit area number , improve processing efficiency and diamond grinding wheel during low concentrations should be selected . Under normal circumstances, when the abrasive concentration can be selected coarse 100-150 % , when the concentration of abrasive grinding can use 75-100 percent.
The machined parts diamond grinding wheel surface , there will always be some macro and micro geometry errors , part on the surface of microscopic diamond wheel geometry error is determined by masonry saw blades the parts on the surface of a series of tiny diamond wheel spacing valley formed , these tiny undulating valley called the degree of surface roughness of diamond wheel parts .
Surface roughness is a measure of diamond wheel diamond grinding wheel surface machining precision parts is an important indicator of the surface roughness of diamond wheel parts will affect edge polishing pads the level of two parts in contact with the surface of the diamond wheel friction , motion surface wear , the bonding surface sealing , with a surface of the working precision , the fatigue strength of the rotary member , the appearance of parts , etc., even on the part of diamond grinding wheel has an impact on the corrosion resistance of the surface . Diamond grinding wheel abrasive concentration on superhard materials grinding effect to a certain extent , the concentration is too high or too low can cause premature loss of tct saw blades the abrasive , the diamond grinding wheel wear and tear costs, so the choice of abrasive concentration is also critical when step. Experimental results show that the coarse grinding , higher concentrations can be selected to increase the effective abrasive grains per unit area number , improve processing efficiency and diamond grinding wheel during low concentrations should be selected . Under normal circumstances, when the abrasive concentration can be selected coarse 100-150 % , when the concentration of abrasive grinding can use 75-100 percent.
2013年9月11日星期三
blade grinding develop some of the trends
An alloy saw blade when grinding a number of factors can not be ignored, the matrix deformation, inconsistent thickness, bore tolerances big. Congenital defects of the base there is a problem, no matter the kind of graphics device, there is grinding errors. Matrix deformation on the two side angle bias; matrix inconsistent thickness right sand paper rear corner and edge front corner of bias, such as the existence of cumulative tolerance is too large, the quality and accuracy of the blade severely affected. 2, grinding teeth grinding effect on the structure. Alloy saw blade grinding machine structure and assembly is good or bad, about two types of models currently on the market: one is floating in Germany Seoul ink types. The type with vertical grinding off, all the advantages of hydraulic stepless movement, all of the feed system using V-shaped guide rail and ball screw work, grinding or big arm with slow feed forward, rewind retraction, Clips cylinder regulator center support piece flexible and reliable, accurate positioning pulling teeth, blade positioning center firmly self-centering, arbitrary angle adjustment, cooling flush reasonable, man-machine interface, high precision grinding off, pure grinder rational design; Type II, which is currently Horizontal such as Taiwan and Japan models, the presence of mechanical transmission gears and mechanical clearance dovetail slide accuracy, stable performance low clip, branched piece center adjustment difficult, pulling teeth institution or poor reliability, flat two sides, left and right rear corner is not a central mill cut, resulting in large deviation angle difficult to control, mechanical wear disaster ensure accuracy. 3, welding factor. Welding Alloys for moderate deviations and impact grinding precision, resulting in a large pressure while grinding, while pressure is small, the posterior horn of the same generation of the above factors, welding angle difference, human factors will inevitably have on the grinding wheel, etc. factors produce unavoidable impact. 4, wheel width affect the grinding stone quality and size. Optional wheel running gold films, note wheel size, granularity is too coarse grinding wheel produced traces wheel easy to plug the optional fine granularity grinding less easy to burn knife. Grinding wheel diameter and length width thickness is based alloy and alloy tooth width or different each face the situation, not a corner after corner or front wheel specifications are the same as any different from tooth grinding, must be targeted to choose a suitable Specifications Wheel. 5, grinding feed speed. Alloy saw blade grinding entirely good or bad decision grinding feed rate, generally alloy saw blade feed rate at from 0.5 to 6 mm / s can not exceed this value should be 20 per minute teeth, the ultra in every minute 20 tooth feed rate is too large, it will have serious knife tumors or burning alloy wheel impact generated convex and concave surface precision grinding wheel wasted. 6, grinding feed rate, the choice of wheel size on the amount of feed has an extremely important significance. General grinding wheel recommendation to use 180 # 240 # 240 # to use at most an opt 280 # 280 # to 320 #, or to adjust the feed rate. 7, grinding center. All grinding the blade and the substrate as the center, rather than with the blade as the center, get it out flat grinding center, rear angle, rake angle with a processing center can not be sharpened a saw blade, saw blade grinding three processes the center can not be ignored. Side angle grinding alloy thickness is still careful observation, the thickness change with different grinding center, regardless of how the alloy thickness, the grinding surface grinding wheel center line and the welding position to be maintained in a straight line, or have a poor impact angle cutting. 8, pulling teeth institutions can not be ignored. Regardless of how the structure of any grinding, pulling teeth designed to coordinate accuracy sharpening design quality, machine adjustment pulling teeth acupressure reasonable position in the tooth surface, and not with the move is extremely critical, back teeth when pulling teeth claw should flexible and reliable. 9, Clips institutions: institutions firmly clip stable and reliable quality is the main part of the Brothers, the Brothers when any clip institutions can not have the slightest loosening, or grinding teeth deviation seriously out of control. 10, grinding itinerary. Regardless of wet tile saw any part of the blade grinding, grinding grinding stroke is very important, generally require grinding wheel or exit out of the workpiece 1 mm 1 mm is appropriate, or tooth blade produces two faces. 11, the program options: Sharpening generally provided with a rough and fine grinding three different programs options, depending on the degree of demand for product selection, and finally recommended when grinding rake angle grinding process. 12, coolant grinding teeth grinding fluid that is good or bad decision. Partridge produce large amounts of tungsten grinding, diamond grinding wheel powder, not timely flushing and cleaning of grinding wheel tool surface pores, causing the surface of the grinding tool can not grind finish, there is not enough cooling will burn alloys.
2013年9月9日星期一
diamond wheel recess repair method
Diamond grinding wheel after prolonged use , there will be recess , then how do we fix it ? Described briefly below :
1 Reduce the wheel speed , in principle at least half square easy renovation , if no conversion can be repeated cutting discs in order to reduce the speed switch machine refurbishment !
(2) to the grinding wheel truing tool , before moving overlapping width of grinding wheel surface is 1/ 3 to 1 /2.
3 successive feed to 140 # , for example, advanced 0.005 , crisp sound to sound blunt , flat surface jump surface , and then proceed to 0.01 and repeat sound, surface inspection , and then proceeds to 0.015,0.02,0.025,0.03 sequentially until crisp sound, surface flat , no flutter pattern , which means rounding , dressing complete. Maximum amount of feed hole saw blades renovations need be adjusted depending on wheel size , the more coarse granularity of the greater amount of feed renovation !
Note: You can pre- order singular pen painted oil diamond wheel circumference , when the ink traces completely disappeared , that means rounding the job done.
Grinding debris when soiled condition , which can be hand-held strip of sand dressing , cutting the wheel to restore function ! 3 uses centrifugal brake brakes after rounding is necessary then to the white sands of dressing . 4 Diamond and CBN grinding wheel once on the concrete diamond blades machine, unless the wear is completed , it is best not to remove it. If it must be removed , the need to remove the flanges together , otherwise, once re- use, that is the amount required to burn off more renovations !
1 Reduce the wheel speed , in principle at least half square easy renovation , if no conversion can be repeated cutting discs in order to reduce the speed switch machine refurbishment !
(2) to the grinding wheel truing tool , before moving overlapping width of grinding wheel surface is 1/ 3 to 1 /2.
3 successive feed to 140 # , for example, advanced 0.005 , crisp sound to sound blunt , flat surface jump surface , and then proceed to 0.01 and repeat sound, surface inspection , and then proceeds to 0.015,0.02,0.025,0.03 sequentially until crisp sound, surface flat , no flutter pattern , which means rounding , dressing complete. Maximum amount of feed hole saw blades renovations need be adjusted depending on wheel size , the more coarse granularity of the greater amount of feed renovation !
Note: You can pre- order singular pen painted oil diamond wheel circumference , when the ink traces completely disappeared , that means rounding the job done.
Grinding debris when soiled condition , which can be hand-held strip of sand dressing , cutting the wheel to restore function ! 3 uses centrifugal brake brakes after rounding is necessary then to the white sands of dressing . 4 Diamond and CBN grinding wheel once on the concrete diamond blades machine, unless the wear is completed , it is best not to remove it. If it must be removed , the need to remove the flanges together , otherwise, once re- use, that is the amount required to burn off more renovations !
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