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.

affect wood saw blades cutting parameters

Sawing sawing parameters of the main parameters of diamond saw blades : peripheral speed , feed rate , the transfer speed. Circumferential velocity : in practical work , diamond saw blade line speed is equipment conditions, limitations, and the quality of the blade sawing stone nature. From the best blade life and cutting efficiency , the linear GUSHI turbo diamond blade  velocity of the blade should be selected according to the different nature of the stone . When cutting granite , the blade can be selected by the line speed in the 25 ^} 35m / s range. For high quartz content and difficult cutting granite , remove the saw blade line speed limit is appropriate. In the production of granite tiles, using a diamond saw blade smaller diameter , the line speed can reach 35 ^} 50m / s. The amount of feed : feed quantity is involved diamond wear , effective sawing , saw the forces and vital parameters were sawing stone  GUSHI metal grinding wheel by nature . Generally speaking , when a higher line speed diamond saw blades , you should select a small depth of cut.
Feed rate: Feed rate Jibei stone cutting feed rate . Its size affect the rate of cutting , the blade and the cutting force by the heat dissipation area . Its value should be based on the nature of the stone sawing selected . In general, the sawing softer stone, such as marble, may be  GUSHI cutting discs appropriate to increase the feed rate, if the feed rate is too low , more conducive to improving cutting rates. Sawing fine structure , relatively homogeneous granite , may be appropriate to increase the feed rate, if the feed rate is too low , diamond blade easily be polished .

What are the characteristics of the resin grinding wheel

The characteristics of the resin grinding wheel resin grinding wheel is made of resin grinding wheel, such as phenolic, epoxy, polyurethane, polyvinyl alcohol, etc.; high strength resin grinding wheel, and can be added to strengthen the fiber network in the grinding wheel in steel, such as cutting, grinding, Currently, most of us are not waterproof resin grinding wheel, abrasive grinding fluid can not be used, of course, need  diamond bandsaw blades to add some resin grinding wheel grinding fluids, such as epoxy resin finish grinding wheel, the workpiece is not easy to burn, the current resin grinding wheel used in cutting, double-end, heavy duty wheels, polishing wheels, etc., than the metal-binding agent and vitrified low strength resin bond wheels. resin binder is an organic binder, which binder manufacture of high-strength wheel, has a certain elasticity, heat resistance is low, self-sharpening, simple production, shorter process cycle. The operating speed can be made higher than 50 m / sec and a thin wheel wheel. Its range of applications after the ceramic binder, widely used in rough grinding, snagging, cutting and grinding freedom, such as grinding steel ingot casting deburring and so on. Can produce high-speed, high-finish wheels, heavy duty, cutting and grinding wheels of various special requirements. Resin bond grinding wheel while the larger tool abrasive flap wheel  demand. It is the use of benzoic acid and the polyamide resin as a binder or other, by means of a tool to the abrasive diamond or cubic boron nitride and an inorganic filler made of glue. This tool is currently being effectively used in a variety of grinding operations, such as surface grinding, cylindrical centerless grinding, grooving and internal grinding and so on. It is super-resistant stainless steel, cermet, ceramic products, glass products, limonite, high-speed steel, alloy tool as well as many other new superhard materials ideal for grinding tools. There are many special resin binding for rapid cooling of  sanding discs diamond cutting wheel. These wheels especially for carbide tools (such as saws, cutting machines, drilling tools, end mills, etc.) grinding. In addition, these tools can also be used carbide dies, rollers and carbide wear parts, precision grinding operations. Resin bond grinding wheels are the preferred ceramic and precision machining and grinding of carbide ceramic thermal sprayed layer. Resin glue wheel can also be used in conjunction with CBN, for grinding high-speed steel, tool and die steels and superalloys FtRC50 above.

During operation of the concrete coring machine

 During operation concrete coring machine , mainly preparation, installation , drilling, drill , final hole five steps.
Preparation 1 , the use of pre-
( 1 ) adding 93 # unleaded gasoline and high oil, how much oil can be added to prevail based on the dipstick mark.
( 2 ) in the column filled with oil and turn the handle and feed the output shaft , check the feed and rotary is flexible and reliable.
( 3 ) ready for water.
( 4) Check all parts of the screw is loose.
2, the installation
Drill holes later on , the three  concrete saw blades walking round lifting , so the base fell to the ground. Hit the hole and concrete strength is not high , then you can rely on its own weight rig rig fixed , if playing a larger aperture , the rig can not hold their own weight when the rig can place heavy objects ( such as sand bags on the chassis, iron , concrete blocks , etc. ) fixed or play two bolts plus bar ( such as channel , etc. ) to secure the rig , rig securely fixed to not shake , otherwise not normal drilling operations .
3 , opening
After doing these jobs , job openings can , put on the drill , the starting gasoline engine (see gasoline user manual ) of the inlet pipe into the bucket, the bucket to mention higher pump position, and  grinding cup wheels then pinching the water suction gas -hsiang pumps, water pumps , Sheung Shui, the bucket on the ground level . Throttle to maximum and began to jiggle the handle into the drill slowly touch the ground. Opening Tip: after the first water drilling, feed slowly, WOB small. Prohibited anhydrous job , it would burn the drill and seal .
4 , drill
When 2-3 mm deep hole drilling , the drilling can be turned into a normal , appropriate at this time to increase the  feed pressure , normal drilling tips : feed pressure should be moderate , to maintain uniformity , crude steel to encounter to reduce the intake pressure . To do listen second look , whether listening to the sound of the machine  diamond cutting tools properly, to see whether the return orifice ( risk ) of water.
5 , final hole
After reaching a depth taken , you can stop drilling . Stop drilling requirements are: first turn off the water after the machine when if deep , can not immediately provide drilling and without water , while punching with water for some time, aimed at the hole in the rock powder rinse to prevent rock powder precipitation resulted in burying cause coring difficulties.

In cutting wheel when it has the following characteristics

Wheel of traditional processing methods What are the limitations?
Wheel after roasting and curing processes, its size, shape and appearance of each respective position accuracy, can not reach the use of the technical requirements necessary after turning, research rubbing and grinding. The unit also due to the use of wheel and wheel consumption need not meet the requirements of the specification and application, it must be turning. As objective technical reasons, mostly outside the Diamond tools  traditional international knife bowl for turning. In the process of working with it, the wheel at high speed (300 ~ 400m/min) No. 45 driven by hardened tool steel thin-walled bowl rotation, and stops moving knife, remove the wheel excess amount. Since the processing bowl and the cutter wheel rotates at high speed in the formation of dust and noise processing large cutting depth and feed rate is very small, so the processing efficiency is low and synthesis of the high resolution, the operator break strength. Large particles such as the use of diamond tools, expensive, and because of the low bending strength of 4 inch saw blades  the diamond cutting easily damaged, it is formed when the cutting wheel cutting depth and feed rate is very small, the general only used for finishing.
(2) using the tool cutting wheel PDC What are the characteristics?
Polycrystalline Diamond Compact (PDC), was developed in the 1970s into a superhard cutting tool information. It is made with the tool being used to cut a variety of non-ferrous metals and non-metals, and can be used to cut wheel. In cutting wheel when it has the following characteristics:
(A) has a high hardness and wear resistance: the hardness of polycrystalline diamond layer common in HV7000 ~ 9000, and the differences in each direction, is a common abrasive wheel hardness 2 to 4 times. Cutting wheel with it a high degree of durability, the volume wear ratio wet saw blades  up to 1/13 million. Quality wear ratio up to 1/300 000, thereby reducing the consumption of capital.

monocrystalline diamond tool application

the crystal structure of the highest density of metal atom such as axial face-centered cubic crystal. Diamond crystal connected between the carbon atoms bond to sp3 hybridized covalent bond, with a strong binding force, stability and direction. The unique crystal structure of diamond in nature it has the highest hardness, stiffness, refractive index and thermal conductivity, and high wear resistance, corrosion resistance and core drill bits  chemical stability.
Excellent characteristics of single crystal diamond meet the precision and ultra-precision cutting tool material for most of the requirements and is ideal for precision cutting tool materials. Diamond without internal grain boundaries uniform crystal structure so that the tool cutting edge can theoretically reach the atomic level flatness and  core bits for concrete sharpness, cut thin cutting ability, high precision, cutting force is small; their high hardness and good wear resistance resistance, corrosion resistance and chemical stability can ensure that the tool has a long life, so that it can continue for a long time of cutting, the tool wear can be reduced because of the precision of the parts; its high thermal conductivity can  cbn grinding wheels be reduced and the cutting temperature parts thermal deformation.
Single crystal diamond tool in the machining field has an important position, is widely used as a mirror, missiles and rockets navigation gyro, computer hard disk substrate accelerator electron gun, such as ultra precision mirror of parts. Can also be used in the manufacture of single crystal diamond eye, brain surgeon's scalpel, thin slicing knives and other bio-medical tools.

ost-effective way to improve the grinding wheel

the best way to improve the cost of: grinding the core of the sheet is not part of the cutting action in a poor quality and low price instead of a secondary abrasive, abrasive cutting quality full performance, lower manufacturing costs.Sheet wheel performance depends largely on the merits of using abrasive quality, good quality abrasives, grinding wheels, high grade, and in the more expensive price. As the domestic high-grade bauxite  green concrete blades resource depletion, a variety of raw materials and coal prices in mid-rise, coupled with energy saving the environment forced shut down, corundum prices are rising fast, from time to time will be in short supply. How rational use abrasives, improve market competitiveness, is the most important enterprises grinding technology considerations.Best approach is to not participate in the core sheet wheel portion of the cutting action of poor quality with low prices instead of secondary abrasive, abrasive cutting quality full performance, lower manufacturing costs. This approach resin bolts and large diameter cylindrical grinding wheel resin grinding wheel has been widely used. For thin grinding wheel, since the intermediate screening, the  polishing pads for granite bottom and the top to separate the feed, if the external and the core are stepwise feeding, in the process to implement quite difficult, is still only vision in the future, if successful, cost reduction, profit improvement , on sheet wheel manufacturing is undoubtedly a far-reaching "technological revolution."Compare prices now wear suitable strategy for various consumer groups, in accordance with abrasive made of different grades of abrasive products, the best abrasive used in most need sheet wheel, avoiding production of low-grade abrasive grinding wheels with high-grade, as far as possible best use, cost-effective in improving the premise, a great effort for each grade of the product have done "extreme."High-grade sheet wheel stable, targeted, reproducible production has generally adopted a sand, special cup grinding wheels  products and even to use zirconium corundum, calcined alumina abrasive and post-processing. The market is dominated by imported products, most cost-effective production of high sheet is not high, not discrimination, targeted not strong, still need further research and development efforts.If you use an ordinary sheet wheel sand, cost is very low, almost no profit, now commonly used two sand instead. The so-called two sand, refers to those standards is not abrasive, aluminum oxide content of about 80% of corundum, good quality two sands, also known as a second, different origin, different batches of two sand quality fluctuation range large. Sand production sheet wheel with two main problems is the wheel performance is unstable, different batches of the same recipe abrasives, grinding wheels produced poor reproducibility, good times and bad

Bit matrix performance design

Based on these two points, bit matrix performance design should include

steel bonded carbide type carcass composition and its properties. Type

of steel bonded carbide matrix diamond drill design and research, in

order to replace most of the metal grinding wheel  tungsten carbide alloy, based on a certain

amount of nickel, cobalt, manganese, titanium, chromium, molybdenum and

other materials, and rare earth elements in hot conditions with the

formation of a certain hardness, wear resistance and can be securely

appropriate package insert diamond steel bonded carbide matrix [1]. We

focus on the matrix hardness, wear resistance and firmness diamond bezel

setting. Type of steel bonded carbide matrix material, you also need a

certain amount of phosphorous alloy material to replace part of pure

iron. Adding phosphorus alloy aims to reduce the sintering temperature

and increase the performance of the carcass brittle [3], and in favor of

a diamond blade in the matrix to improve the drilling time. In order to

control the phosphorus content in the matrix, in addition to a

phosphorus alloy powder, the pure iron carbonyl must join to control the

phosphorus content and improving the performance of the carcass. 1.2

steel bonded carbide type carcass test: For hard and compact rock

characteristics, drilling practices and  diamond polishing pads preliminary studies indicate

that the matrix hardness to diamond drill HRB108 ~ HRB115 more

appropriate, the wear amount of lower-middle (260 mg ~ 370 mg) is ideal.

Steel bonded carbide type carcass preliminary trials have shown that in

order to achieve these targets, the carcass of the basic formula is as

follows: P 2 iron content of 40% to 48%, as a binder metal content of

26% tin bronze ~ 32% tungsten content of 12% ~ 28%, Ni content of 5% to

10%, the cobalt content of 3% to 7%, and the remaining ingredients are

titanium, manganese, molybdenum, chromium, and rare earth. According to

this basic ratio, the sintering process in a reasonable condition,

carcass materials and manufactured diamond drill has better adaptability

and drilling results. Process for hot carcass performance will have a

significant impact, which obviously affect the sintering temperature and

pressure [4]. Therefore, in the diamond blades  study of steel bonded carbide matrix,

sintering temperature and pressure must be incorporated into the design

factors. Iron at high temperatures the diamond has some heat damage, it

should be shortened by rapid sintering and holding time. In this test,

the sintering process is designed to: sintering temperature 960 ℃,

pressure parameters 16 MPa, holding time 4 min. Sintering in SM1002A

carcass type resistance furnace controlled intelligent. The combination

of hot-pressing process is the result of many experiments and analysis

finalized, so it is reasonable. According to the above-mentioned range

of carcass composition and sintering processes, uniform design

experiments to study the carcass composition of steel bonded carbide

type changes on the carcass performance were investigated. In accordance

with the uniform design method, the experimental design of the 16 matrix

formula combinations in Table 1. Select the matrix hardness and wear

resistance properties of the target for the carcass. Matrix hardness

testing using HR - 150A Rockwell hardness tester, and select HRB as

measured values, for each combination of two samples of prototype

formulations, both sides of the direction of the pressure measured

twice, 8 hardness data were measured, taking Examples of the formulation

the average hardness value....

How to choose diamond drill bit according to the rock properties

For the hard rock drilling and dense low efficiency problem, this paper

analyzes the tungsten carbide-based hot drill diamond protrusion such as

lithology and rock abrasiveness intrinsic link between that drill

carcass composition and its performance is tamping rammer  critical , hard and brittle

with a carcass beneficial properties of the diamond blade, which can

increase the drilling speed. Therefore, from diamond drill hot carcass

composition and properties of the start, after repeated experimental

research, trial out of the hot steel bonded carbide type impregnated

diamond bit. In the hard and dense rock drilling field tests showed

that: with ordinary tungsten-based drill compared to drilling aging by

the 0. 5 m / h up to 1. 18 m / h, drill working life by a 10 m / a

increased to 21. 31 m / a, basically solved the hard and dense rock

drilling difficult problem. Experimental results show that the type of

steel bonded carbide matrix is  wet diamond polishing pads ​​an excellent diamond drill carcass

material, the type of hot carcass diamond drill is a kind of a broad

spectrum of diamond drill bits. Foreword traditional hot tungsten

carbide-based diamond drill is widely used in geological prospecting.

Tungsten carbide-based diamond bit high abrasion resistance, better

adaptability for rock. However, this type of drill bit for hard - hard

and dense rock formations exhibit adaptability unsatisfactory drilling

less effective, while 08 1994-2010 China Academic Journal Electronic

Publishing House. All rights reserved. Http:/ / www.cnki.net Diamond &

Abrasives Engineering Total No. 168 effective only 0. 40 m / h ~ 0. 50 m

/ h, working life of only 8 m ~ 10 m. Meanwhile, in recent years,

tungsten carbide, cobalt, nickel and other metal materials prices, the

cost of diamond drill increased significantly. In order to improve drill

hard and dense rock drill drilling performance and reduce costs, we have

gone through nearly two years of experimental research, successfully

developed a type of hot carcass steel bonded carbide impregnated diamond

drill bit. Steel bonded carbide type of steel bonded carbide matrix is ​​

designed based on the idea, its composition and  cutting discs the ratio of the larger

changes were made, including tungsten carbide, cobalt and other

materials was significantly lower, at a reasonable thermal pressure

condition of the carcass is formed. A carcass Test 1.1 steel bonded

carbide type carcass performance design for hard and dense rock

formations, to improve the diamond bit drilling results, we must have

two basic conditions: ① with the wear resistance of the carcass

abrasive rock drilling performance to adapt bit matrix slightly ahead in

the process of drilling diamond wear, so that the carcass of a diamond

blade can be timely to ensure effective cutting rocks. ② requirements

of the diamond matrix alloys have a solid package insert effect, there

is a higher blade without shedding [2], the carcass of the diamond can

be a long time to maintain a sharp cutting results. To achieve these

goals, we must study the type of steel bonded carbide matrix can improve

the wetting adding diamond alloy composition.

CVD diamond coated with amorphous diamond coating difference  Amorphous diamond

coatings are deposited using a PVD process carbon. It has a key part of the diamond SP3, SP2 also has some carbon bond; their film hardness is high, but lower than the hardness of diamond film; thickness than we usually deposited diamond film to be thinner. Machining graphite, amorphous diamond coated tool life is uncoated carbide tools 2-3 times. In contrast, CVD diamond is deposited using CVD process pure diamond coating, machining  carbide tipped saw blade graphite carbide cutting tool life is 12-20 times, thereby reducing the number of tool changes to improve the reliability and accuracy of processing consistency. 
(2) can not be used diamond tool machining hardened steel 
Diamond from carbon atoms. Certain materials when heated, sucked from the carbon atoms in diamond and carbide is formed in the workpiece. Iron is one such material. Cutting tools with diamond iron group material, the friction generated heat causes diffusion of carbon atoms in the diamond into the iron, the resulting diamond coating due to chemical wear and premature failure. 
(3) re-grinding and (or) heavy coating  construction tools  of diamond coated tools is difficult to guarantee the quality of the coating formed on the surface as the tool for the pure diamond, so the tool with a diamond wheel for re-grinding takes a very long time. In addition, the growth of the diamond tool used. Preparation of the tool will change the chemical properties of the surface, since the coating of this chemical properties requires very precise control, so the effect of the tool recoating difficult to be guaranteed. 
(4) diamond coated tool life varies 
Like any other tool, diamond coated tool life varies, depending on the material to be cut, the choice of feed rate and cutting speed, and the geometry of the workpiece and so on. Generally, diamond-coated graphite machining tool life is uncoated carbide tools 10-20 times, in some cases, may even be longer. This way, you can use a tool to complete almost any processing tasks without tool change due to tool wear and to avoid disruption and recalibration process, making it possible to achieve unattended machining. The processing of the composite material, is entirely possible to obtain a longer tool life. 
According to reports, in the processing of  cutting discs high-density glass fiber, carbon fiber and Gl0-FR4 other difficult machining composite materials, diamond-coated tool life up to uncoated carbide tool 70 times. 
(5) diamond coating spalling can prevent flaking coating of diamond-coated tools are a serious problem, but also a common problem (especially in the processing of materials like carbon fiber), will lead to unpredictable tool life. The late 1990s, interfacial chemical properties were identified as affecting the diamond coating adhesion properties of important factors. By selecting good compatibility Carbide chemical characteristics, the use of appropriate technology and reasonable pre-deposition reaction conditions, it is possible to reduce or eliminate the diamond coating spalling, stably smooth wear patterns. Observed under the microscope normal wear diamond coated tool, you can find the diamond was worn until stable carbide substrate, without chipping or peeling.

lifetime of saw blades factors

 Impact efficiency and lifetime of diamond saw cutting process parameters and factors of the diamond particle size, density, hardness and  diamond blade saws other binders. It has cut the number of blades can be wire-speed, concentration and cutting feedrate.
One, sawing 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 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 diamomd core drill bits  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 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  core bits for concrete 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. 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.

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

Large saw blade stone mining application

At present, China mining have the following main ways: blasting, flame cutting method, expansive law. Its mining methods sds drill bit   ordinary deposit with low labor productivity, finished product rate, serious waste of resources, poor security shortcomings. In recent years, some companies use diamond wire saws, chain saws, etc. diamond mining, has yielded good results, but the equipment into large, higher mining costs, is still not large-scale use. How to improve the quality and efficiency of stone mining to minimize environmental damage, reduce labor intensity, and has become an urgent need to mine stone blocks to solve the problem.Second, cutting principlesFor the  masonry drill bits above, our scientific and technological personnel to sheet cutting mechanism cleverly used in mining, and achieved good results. The basic principle is: the table and laying mines track, driven by the host very large diamond saw blades (Ф2000 ~ 3500mm) high-speed rotation, rail-cutting. Because the way into a small, high efficiency, safety, environmental protection, energy and mining low cost, widely favored by the mining companies.Third, the technical requirements
In addition to asking Saw this mining method to have a good accuracy, the large diamond saw blade specifications, quality and cutting blades  other key to this technology. As we all know, the decision by the mesh size of the mining blocks blade specification decisions. Currently, the market requires sheet width up to 1.5m or so. Therefore, a matching diamond saw blade specifications must reach Ф3500 over the same time, field work environments such as mining operations and flatness, cooling conveyor and other relatively sheet cutting, conditions even worse. Therefore, the blade base body made more stringent manufacturing requirements.

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").

Velcro wool ball (polishing pad)

Felt Felt polishing wheel Density 0.38-0.65g / cm 3, diameter 10-800 mm, thickness 3-50 mm, quality is divided into; premium, one, two, (material with industrial felt). Scope: eg concrete diamond blades  automotive beauty, glass, furniture, wood, stainless steel plate, stainless steel, castings, precision instruments, products, tools, gold and silver jewelry, precious metals and other surface polishing. The object to be polished clean and bright, tiny scratches can be shuffled around, played to mark polished as new results. Can be used with polishing liquid, paste, powder, with the use of better. Felt wheel plane different from the industrial production process blankets, organizations, small pores, unlike fabric that limit by latitude and longitude, good wear resistance, is wood, jewelry, glass, polished stainless steel plate throwing the best material. How to choose the blankets round: items need to be left at the correct density sized blankets round, throwing glass is generally used 0.45g-0.50g/m3, cast stainless steel plate dry polishing pads  used 50g-65g/cm3, polishing marble used 0.40g/cm3- 0.50g/cm3, jewelry, jade available 50g/cm3 around. Felt wheel features not every product specifications are available, such as strong sexual Felt wheels density is too large will lose elasticity, density is too small to lose abrasion resistance, the thickness of wool have influence on the properties, according to the practical application to set.The product is widely used in ceramic tiles waxing decontamination, the pipelining tiles waxing machine waxing consumables. Now getting into the average family on the floor, floor tiles cleaning waxing polishing. Applicable to soft floor polishing.
Red: remove minor scratches and dirt meet  abrasive tools unexpectedly, was formed smooth and shiny bright surface. Is ideal for daily cleaning and polishing products.
Black: grinding power, wear durability, mainly for the decontamination of ground, is used to start the first stage of grinding. Designed for heavy duty wet from the wax design. Effectively remove the wax surface, stains and glossy coating.

diamond dressing pen / diamond pen

Diamond pen is a new wheel dressing tool, using powder metallurgy hot pressing process, the matrix alloy wear resistance, high strength, diamond alloy matrix is ​​firmly embedded, not falling, the diamond wire saw  diamond particles are arranged according to certain requirements in the alloy matrix, easy to use and do not need tough grind and back ...
2 diamond grinding wheel / diamond wheel cutter
Company specializing in the production of ceramics, resin, metal is bonded diamond or CBN grinding wheel, mainly used for carbide tools, ceramic materials, magnetic materials, PCD, PCBN cutting tools, funnels and grinding of ferrous and nonferrous metals processing . And according to customer ...
3 natural diamond dresser
Natural diamond dresser multi natural diamond particles sintered regularly arranged in the alloy matrix, and fixed to the cutter body. For fine grinding wheel dressing is an economical, practical and  carbide tipped saw blade novel wheel dressing tool. It has the shape of round, square, etc., do not use ...
4 Diamond grinding / grinding
Electroplated diamond and CBN electroplated diamond and CBN grinding grinding for carbide, high carbon steel, bearing steel miniature bearings, tools, and other precision parts machining holes of various shapes and a variety of special-shaped cavity molding grinding. And jade carving pondering other working ...
5 Diamond File
Diamond File mainly suitable for carbide, hardened steel trimming, cutting and filing and repair mode, also applies to the noble cutting and filing non-metallic materials, such as: silicon, crystal and  dry cut blades other materials ......
6 diamond indenter
Diamond indenter are made of high-quality natural diamond processing, is a key fitting a variety of hardness. The company produces pressure head varieties, specifications, high precision, and long life, beautifully packaged.

Application of the tool

Gold in recent years has been widely promoted and applied , then the following diamond tools we introduced a comprehensive range of applications :
The processing of non-ferrous materials difficult to machine
Processing of copper , zinc, aluminum and other nonferrous metals and alloys , the material easy to adhere to core bits for concrete  the tool , processing difficulties. Using diamond low coefficient of friction , and non-ferrous metal affinity characteristics of small , diamond tool and the tool can effectively prevent the occurrence of metal bonding . Further , the elastic modulus of the diamond cutting edge portion is deformed when small, the cutting non-ferrous metal extrusion deformation is small, the cutting process can complete the small deformation , which can improve the surface quality .
Difficult to process the processing of non-metallic materials
Processing particle contains a lot of high hardness non-metallic materials difficult to machine , such industrial saw blades  as glass fiber reinforced plastic , filled silicone material , hard carbon fiber / epoxy composites , the material of the hard particles so that the tool wear serious , hard carbide cutting tools processing , and diamond tools , high hardness, wear resistance, and therefore processing efficiency.
Ultra-precision machining
With the advent of modern integrated technology , precision machining direction to the development of the tool performance made ​​some very high demand. Because diamond friction coefficient, low  ceramic tile saw coefficient of thermal expansion , high thermal conductivity, can cut very thin chips , chip easily outflow affinity with other substances is small, easy to BUE , heat a small , high thermal conductivity, heat can be avoided of a blade and the workpiece , so the passivation edge , cutting deformation , the surface of higher quality can be obtained .

selected tool efficiency principle

Do the cutting tool industry should be carried out to buy, many businesses usually do not know what to buy a good tool material, diamond tool manufacturers say in metal cutting, tool selection process engineer almost every one must face the problem.
Tool selection to consider many wet diamond polishing pads  issues, and accordingly there are many principles such as the principle of efficiency, precision principles, stability principle, the principle of economy and so on.
Let me first explain the principle of efficiency. Efficiency principles are in fact inseparable with other principles, especially the principle of economy. The main purpose of the efficiency requirement is to ensure that the economy of the entire process. But efficiency is particularly important, so it independent, separately discuss the issue.
The first is the principle of efficiency in maintaining acceptable precision and stability acceptable under the premise of efficiency. Without this basic condition, the efficiency of the question. Just as we want our vehicles (such as cars) can bring us more speed, but safety comes first. Once after the crash, many people will seriously consider whether you really continue to choose air travel, the airline will re-examine the existing security policy. Without security, the aircraft would not have become the preferred means of transport. Tool selection same.
Secondly, we do not at all emphasize efficiency under all conditions, the pursuit of efficiency has some constraints. A part machining efficiency and other parts required to adapt the  turbo diamond blade efficiency, improve the efficiency of a process and other processes need to adapt efficiency. If you ignore these constraints, the blind pursuit of efficiency, will be a thankless task. As the train from Shanghai to Beijing, and now start around 20:00 the next morning 10:00 to arrive. If you can advance to the 8:00 arrived, perhaps the most popular; But if advance to the 6:00, maybe popularity decreased. Because the conductor in advance before arriving an hour or two hours finishing travelers bed in the morning 4:00 or 5:00 to get up the majority of visitors will not be too willing. Plant is true, in particular, especially in the production line conditions. We need to address the entire pipeline "bottleneck" processes. As long as the increased production capacity of this process, we can improve the whole production line capacity, improve the production capacity, shorten the manufacturing cycle, which is the desired number of companies. The stand-alone or flexible manufacturing system needs not the same. They suffered less constrained, ie processes associated with other smaller degree. Because flexible, a part or a process to shorten the manufacturing cycle often means being able to make other parts of the device is put into production or other processes, thereby creating more benefits.
In today's increasingly competitive market, business process engineer's expectations is not a simple process to solve the problem, but the expectations of the enterprise process engineers were able to have a greater contribution. If our process engineers from the  diamond tool manufacturer overall situation of enterprises, improve the manufacturing processes for enterprises to contribute to business owners will get the approval and praise.
 Modern metal processing enterprises on foreign survey data, the manufacturing cost of the tool itself is not very high proportion, usually in the 2% to 4%, and the high will go to about 7%. However, the impact on the efficiency of the tool is very huge. A few hundred thousand dollars worth of equipment can play its due role, often depends on a few dollars a tool. I've got over a cost analysis examples show that 30% of the purchase price reduction (mean no change in tool performance) or 50% longer tool life (usually relies tool manufacturer's technical progress) can only reduce manufacturing costs a percent? because tool costs account for only 4% of the total manufacturing cost. But if the process parameters can be increased by 20%, about 15% can reduce manufacturing costs?? Although if the cutting speed is increased by 20%, the tool costs increased by 50%, but because of processing cycles, the total cost is still a significant decline.

fine-toothed saw blades, tipped saw blade

 With extremely good wear resistance and impact resistance. For processing all types of non-ferrous metals and  sanding paper non-ferrous metals, according to the non-The same processing conditions to select different grades of diamond tungsten steel, high-speed light cutting tool has superior performance, general-purposeGood. After coating with excellent results, can improve tool life and abrasion resistance, commonly used in CNC machine CNC equipment and generalBed and processing all sds plus drill bits  types of copper, aluminum, high-temperature alloys, heat-resistant alloys, titanium alloys, gray cast iron, hard quenched steel, tool steel, stainlessSteel and non-ferrous materials such as acrylic materials, PCB, fiber, carbon fiber, plastics, etc., is quenched before and after the heat treatment ofExtremely fine machining tool.High hardness and wear resistant senior high cobalt powder steel: with extremely good wear resistance and impact resistance, good technology, generalUsed to make high-speed light cutting, cutting all carbide drill bits  kinds of difficult to machine materials. After coating better, excellent tool life, wear very High.

advanced tool basics of

Diamond tool manufacturers commentary advanced tool based on three technologies: materials, coatings and architectural innovation. High-speed cutting tools mainly rely on the tool material and  diamond wire saw coating technology. High-speed cutting can improve the cutting efficiency but not the only means. Tool to improve the structure of innovation is also an effective means of cutting efficiency. Composite hole processing tool able to complete one pass drilling, boring and face chamfer. Crankshaft machining process progress more convincing, the invention of the  diamond discs crankshaft car broaches the crankshaft machining efficiency by 10 times. Now there are more efficient crankshaft speed cutter, one pass can be completed seven main journal processing. Dongfeng Motor Corporation cutting tool plant has been successfully developed for the domestic auto plants and high-speed crank car broach cutters and successfully used in the production. The eighties and nineties Chengdu Tool Research Institute in the coating, materials technologies and other individual circumstances are not dominant, with independent intellectual property rights of tool design and process technology, combined with table saw blades  coating materials and innovative technology, integrated tool structure use of high-intensity oil pipe thread cutter on the realization of a successful foreign well-known enterprises beyond. There are many examples illustrate innovative tool structure is often more effective to improve the cutting efficiency. To improve cutting efficiency not just stare with the best (and are often the most expensive) tools to perform high-speed cutting. In the present we tool material and coating technology with foreign countries there is a large gap in the case, focusing on the structure of innovative tools to improve the cutting efficiency is often more effective and viable means. Including the use of high-speed cutting tool structure and innovation, including a variety of means to achieve efficient cutting, cutting concept is yet another step forward.