2014年3月22日星期六

Small diameter diamond saw blade for cutting marble

Small diameter diamond saw blade for cutting marble, granite, concrete, refractory materials, ceramics and other brittle temper material. Cutting equipment is usually portable cutting machine, grinder, individuals have the product efficiency to the desktop machine, such as tiles blades. Basis for the production of small  GUSHI abrasive flap wheels diameter diamond saw blade grounding strange Suri into green sheets and welding pieces.
Sintered slices of raw produce high performance, value related to the high prices, but in the use of easily thrown head separatist course, litter, saw the matrix beans sectional, saw blade is not sharp and so on.
Sintered saw blade roughly divided into: sub tooth saw blade, blade-shaped surrounding succession, the turbine blade region have state type blade, turbo status of tooth blade The same day as the  GUSHI circular blades chip welding laser welding are low the product Laser welded saw.. the price expensive, expensive laser welding facility the cause is, the matrix I expensive, but also the necessary head cold after sintering, sintered saw blade raw produce absolute performance pay is low, but the laser welding of the blade tip and matrix strength is higher , with the use of long life, less prone to broken busted, insurance performance advantages....

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.

2014年3月13日星期四

wood saw blades production methods and their application of the

 Diamond saw blade production methods and their application of the effect of different production methods and application performance saw blade, the method currently used mainly to suppress the production of sintered diamond saw, a few blades produced using electroplating, sintering  GUSHI colde saw blade method common with cold pressed sintered , hot pressing and sintering welding three main ways. Saw another frequency welding welding and laser welding points.
  Diamond saw blade in a wide range of applications in developed countries, more mature technologies and standards, product and market segments have been, but with the further development of the technology of diamond saw blades, diamond saw applications will continue to expand, the market will continue to grow. Diamond saw domestic market has become the world's largest market, but aspects of the blade level, variety, range of applications and manufacturing technology there are still a wide gap with developed countries, regardless of technology or the market has much room for development, I hope GUSHI cutting disc for drill  the industry ambitious people to continue their efforts to eliminate the gap as soon as possible. In general, diamond saw blade contrast harsh working environment, the primary use of the product is sawing stone, widely used in large marble, granite, ceramic tiles and concrete finished cutting, the stone, the building materials industry and the primary widely used in the processing equipment.
 Cutting circular saw blades have manipulated lunch, effectiveness, good processing quality and other advantages. But noise than the large, rigid blade poor. Process prone cutting blade runout, deviation, resulting parallelism of the workpiece to be cut is poor. Saw Spindle GUSHI abrasive flap wheels  unbearable than the large sawing force, swinging the cutting process occurs without grams less than the cut-out line, although the added thickness of the blade can improve its rigidity, it is still difficult to guarantee parallel slices. In addition, adding the thickness of the blade not only adds costs and makes adding kerf width decreases the volume ratio.

2014年3月11日星期二

Grinding of concrete diamond blades and other woodworking machinery needs time to stand in the world

Our saw blade grinding machine and other woodworking machinery standing in the world take time. With the use of new materials , woodworking machinery and tools development trend of diversification. In the wood GUSHI cutting discs  processing industry, the earliest use of the tool material is high-speed steel , carbide and diamond , such as with the use of super-hard materials , the development of increasingly sophisticated woodworking tools , embarked on a new level , correlation detection techniques have emerged breakthroughs.
Although China woodworking machinery development has been greatly improved, but the quality is still less than in the world of wood  GUSHI tct circular saw blades in the forest machine place. As market competition more intense , efficient, high-precision requirements are also increasing. Woodworking machinery production and testing to NC , has become inevitable market-oriented and trends.
Currently , the detection of woodworking tools in general or artificial visual judgment , due to the low efficiency of manual inspection , cumbersome and complex , and the human cost of testing personnel and management costs continue to grow , the traditional manual detection mode has to keep up with the situation development. Nowadays , more and more popular in the GUSHI carbide tipped saw blade  woodworking tool manufacturers choose intelligent automatic testing equipment.

2014年3月6日星期四

a number of different categories of carbide saw blades

I. manufacturing process categories :
1 , sintered diamond saw blades : two of cold and hot sintering sintering , pressing and sintering .
2 , welding diamond saw : two stars frequency welding and  GUSHI abrasive grinding wheels laser welding , high frequency welding head through the medium of high temperature to melt and the substrate are welded together , the laser welding head by a high temperature laser beam in contact with the substrate forming a metallurgical bond edge fusion .
3 , electroplated diamond saw blade : It is attached to the head by an electroplating method powder on the substrate .
Second Appearance Category:
A 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  GUSHI cutting discs 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 turbo punch , improved cutting speed and increase service life.
Different materials selection of different types of  GUSHI dry cut blades 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 .

2014年3月3日星期一

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 .

2014年3月2日星期日

Some reasons concrete diamond blades wear

(1) diamond size: diamond particle size used in the range of 30/35 to 60/80. The more hard rock, should be selected with a finer granularity. Because under the same pressure conditions, the more detailed the GUSHI turbo diamond blade  more diamond sharp cut in favor of hard rock. Further, the general requirements of a large-diameter blade cutting efficiency high, the particle size should be selected with a coarser, such as 30/40, 40/50; lower small-diameter blade cutting efficiency requires a smooth cross-section of rock cutting, should to a smaller particle size, such as 50/60, 60/80.
(2) Segment concentration: the so-called diamond concentration, refers to the density distribution in the working layer of diamond carcass (ie, the weight of the diamond contained within the unit area). "Norms" provides the carcass per cubic centimeter work containing 4.4 kt diamond, its GUSHI carbide saw blades  concentration was 100%, with 3.3 karats of diamonds, its concentration was 75%. Represents the volume concentration of the volume occupied by the number of diamond agglomerates, and that, where a concentration of 1/4 volume of the total volume of diamond is 100%. Increasing the concentration of diamond is expected to prolong the life of the blade, i.e., reduced because of the increased average concentration of each piece of diamond cutting forces suffered. However, increasing the depth of the blade will increase the cost, so there is a concentration of the most economical and the concentration increases with the shear rate increases VS. (3) the hardness of head binders: In general, the higher the hardness of the binder, the stronger its wear resistance. Thus, when a large rock cutting abrasive, hardness should be high binding agent; when cutting soft rock material, the hardness of the binding agent should be low; when sawing hard and abrasive rock large, the hardness of the binding agent should be moderate . (4) force effects, temperature effects and grinding damage: cutting stone diamond saw blades in the process will be subject to centrifugal force, cutting power, cutting hot alternating load effect.
As the force and temperature effects caused by diamond saw blade worn donate damage.
Force effect: the cutting process, the saw blade to be  GUSHI carbide drill bits subjected to an axial force and tangential force. Because of the force acting radially and in the circumferential direction, so that the wavy blade axially, radially dish-shaped. Both can cause deformation of the rock section is not straight, stone waste more time sawing noise, vibration intensified, resulting in diamond caking early damage, reducing blade life. Temperature effect: the traditional theory: the effect of temperature on the blade process mainly manifested in two aspects: First, cause agglomeration of diamond graphite; Second, causing thermal Ili diamond and diamond particles resulting from the carcass of premature loss . New research indicates that: the heat generated during the cutting process the incoming primary agglomeration. Arc temperature is not high, generally between 40 ~ 120 ℃. The abrasive grinding points, but a higher temperature, generally between 250 ~ 700 ℃. The average temperature of the coolant only reduce the arc zone, the temperature of the grains was less affected. Such temperature does not result in charring of graphite, but will occur between the abrasive friction properties and the workpiece changes, and to thermal stress between diamond and additives, which led to a fundamental failure mechanisms diamond bend of. Research shows that the temperature effect is to make the maximum impact factors blade breakage.

2014年2月27日星期四

Diamond tools industry development situation analysis of the reasons

Diamond tools for its unparalleled performance advantages become the accepted , the only effective brittle nonmetallic materials processing tool that broad range of applications , and the continuous extension . Currently , diamond tools are not only widely used in construction , stone processing GUSHI abrasive flap wheels  industry , automotive industry , transport industry, geological survey and defense industry and other fields , but also in precious stones, medical equipment, wood , glass, steel , stone handicrafts, ceramics and composite non-metallic hardware many new areas of brittle materials continue to be applied , the demand for diamond tools is a significant increase year by year . Especially in recent years , and its main downstream industry has been rapid development, such as our country has become the world's largest stone production and processing countries ; China's construction  GUSHI tct circular saw blades industry is also more than 20% annual growth rate , and so on . Development of downstream industries to become diamond tool industry to provide a broad market space. Meanwhile, with the continuous improvement of diamond tool performance , functionality continues to expand, its scope of application has been gradually extended to the semiconductor , aerospace , information and many other areas , these new applications, new markets will open up the GUSHI Bcircular blades  space of the diamond tool industry . Industries have been expanding, competitive advantage is gradually emerging with the rapid take-off increasingly sophisticated synthetic diamond technology and China 's economy , China has had more diamond tool manufacturing technology accumulation and progress , with a strong manufacturing capacity. Because of the great advantages of Chinese enterprises on labor costs , coupled with the trend of technology research and development to catch up on the hair , making our enterprise has obvious advantages in the product price. Rapid growth in market demand , local companies have launched diamond tools .

2014年2月25日星期二

What impact concrete diamond blades cutting performance

We all know that the production is a special diamond saw, this blade is mainly used to cut about relatively hard material, but this blade can cut those specific substances it? Maybe we do not understand, specifically for you Introduction. Pick a good blade tips you know? Watching and small series. 1, you can see the saw blade diamond particles, if it is bad Saw blades are generally of poor quality, so it is very hard to use, or simply cut does not move. What impact blade cutting performance, you know? When conducting cutting blade, if exposed, would have an impact on the protruding cut, how  GUSHI diamond polishing tools to avoid this phenomenon?
When the particle size can be used during the cutting blade larger extent outcropping material will have a faster rate cut teams. Coarse particles are generally used to cut soft materials, and the smaller particle size was used for cutting hard materials. When making the cut, usually with increasing particle number, the number of particles per carat increases. So choosing the right number is a key tool to ensure performance.
2, the time of purchase, pay attention to the  GUSHI sds hammer drill bits texture of cutting, cutting should be very smooth, if there is a halt under the circumstances is a bad blade. 3, you can see through the head color is good or bad, the normal is a silvery white, if hair dark, indicating the knife is more and more impurities. You can use the diamond saw for aluminum, copper, magnesium and its alloys, tungsten carbide, wear resistance materials, wood, metal matrix composites can be cut. Directly affects the hardness of the blade to the cutting speed, and depth of progress. What is a diamond blade? If you are not a professional staff, we do not know, because we often say  GUSHI abrasive grinding wheels we choose a diamond with the now not the same as in the past, we do not know what is the diamond, but today found in all walks of life, Even in many areas, we will often encounter the shadow of the diamond, in which this special day, we sincerely wish you friends, happy New Year, life is happy happy!

2014年2月24日星期一

Some simple narrative and the role of wood saw blades

Classified by material , the current domestic production of diamond saw

blade material matrix mainly 50Mn2V, 75Crl and 65Mn three materials , as

well as some low-end market with a 45 # steel. 45 # steel is ordinary

carbon steel , 65Mn spring steel is common , 75Crl high carbon alloy steel

. In comparison , 50Mn2V is a carbon steel , 50Mn2V fine grain size , high

thermal stability, high strength and toughness , fatigue resistance and

heat resistance. 50Mn2V saw the matrix material , with a number of complex

welding , long service life , the welding head blade easily deformed, easy

to repair after deformation , etc., as well as in the course of the

product so that the effect of high rigidity gradually , so 50Mn2V

materials are widely used in the processing and production of diamond saw

blade matrix . Classification according to specifications , the domestic

stone processing blade matrix size starting from ф200mm maximum of

ф3500mm ( foreign specifications for maximum saw blade towel 5000mm).

Which , dp200-600ram specifications mainly for trimming ( cutting edge )

processing semi-finished sheet ; ф650 above specifications is mainly used

for similar tombstone , grave stone columns and other thick (column )

forming sawing and for sawing blocks of cut ( board ) material processing.

Especially ф1600mm currently the most widely used blade matrix ф200 ~

600mm Specifications saw the matrix , due to the low technical content,

the technical and quality requirements are not high, only requires the

ability to use cutting edge on the line , the market tends to be

homogeneous product technology . Currently ф200 ~ 600mm blade matrix

specification hundreds of manufacturers , the market competition is mainly

price competition as the main means fierce competition in the industry ,

profit margins are low , some domestic enterprises do not intend to have

the strength to compete in this low-end market . Along with the increasing

emphasis on environmental protection , mining blocks scarcity of

resources, power resources in tight supply , rising  GUSHI diamond polishing tools stone enterprise

manufacturing costs, increased competition , a number of energy-saving ,

resource-based , environmentally friendly saw the matrix more and more

markets welcome , customer demand for varieties blade matrix there are

some new features: 1. Sheet , thin blade -based thin sheet , thin blade

substrate sheet , the thickness of the substrate primarily to distinguish

the ф1600mm substrate normal thickness 7.3mm, 6.5mm or  less in thickness

of the sheet is called substrate thickness 5.5 mm or less called ultrathin

sheet substrate . The use of thin , thin film substrate cutting blade

granite and marble slabs , can significantly improve efficiency and cut

blocks the yield , reduce power consumption , such as the GUSHI core bits for concrete  use of ultra-

thin thickness of 4.0mm. Ф1600mm matrix can improve cutting efficiency

over 10% , more than 20% reduction in power consumption , increase

utilization of 16% or more blocks . As the thin , ultra-thin diamond blade

matrix thin film thickness , diameter, large deformation during heat

treatment , and thus the degree of heat treatment on the plane and HRC

control is very important. And because the GUSHI concrete diamond blades  thickness of the thin end jump

to adjust the stress , comprising detecting great difficulties are caused

, in general , only by manual correction is difficult to achieve a good

level and detecting the effect .

2014年2月21日星期五

blades matrix organization and properties of concrete diamond

Firstly, studied the sintering process and composition ratios on the mechanical properties of the matrix-free diamond. Using SEM, EDS for free diamond matrix organization observed and analyzed, revealing the variation matrix microstructure and mechanical performance. ANOVA using orthogonal experimental sintering process and carcass composition ratio is optimized. Then the carcass by adding different types of diamond, the effect of the mechanical properties of diamond on the carcass. Using SEM, EDS and the binding mode of binding conditions between diamond and matrix were observed and analyzed. Finally, Fujian 603 granite sawing objects, conduct real cut, copper-based detection of  GUSHI concrete saws different types of diamond saw blades wear prepared. Draw the following conclusions:
770 ℃ mechanical properties of the sintered matrix is ​​significantly higher than 690 ℃ of the carcass, carcass mechanical properties of thermal insulation 9min higher than 3min carcass. Matrix hardness is higher than with 8% WC carcass containing 4% WC, but the flexural strength and carcass containing 4% WC is roughly equal. Mechanical properties of the matrix containing 18% Ni is higher than 8% Ni containing carcass.
Flocculent white carcass organized by Cu, Sn, Fe, Ni for the four elements of the reinforcing phase is formed, the content of the tissue, the higher the mechanical properties of the carcass. With the improvement of the mechanical properties of the carcass, carcass fracture mode changes from brittle GUSHI concrete ring saw  fracture to the fracture toughness. Content of 8% WC, WC agglomeration occurs in a localized area. Analysis of variance optimization results show that: the best sintering process and carcass composition ratio of.
 After adding uncoated diamond, a sharp decline in the mechanical properties of the matrix. After adding titanium diamond matrix mechanical properties compared with uncoated diamond matrix adding a substantial increase. While adding titanium diamond and nanodiamond carcass compared with only adding GUSHI colde saw blade  titanium diamond matrix, the mechanical properties decreased slightly. Uncoated diamond exists at the interface with the carcass obvious gap for mechanical bond between the diamond and the carcass. Between diamond and titanium matrix tightly, no significant gap at the interface, EDS analysis showed that the chemical bonding between diamond and titanium matrix. Nanodiamond combination of adsorption in the form of the carcass, carcass nanodiamond adsorbed on the particle surface.

2014年2月19日星期三

wood saw blades of some of the major categories

Saw classification
In today's industrial production, life, saw the use of one of the most common, the most widely used, the product range of the  GUSHI turbo diamond blade most complex tool.
Because of this, we need to classify from a different perspective:
One, depending on the material classification
HSS film (HSS saw blade), solid carbide saw blades, hacksaw tungsten film, alloy tipped saw blades, diamond saw blades, etc.
Second, depending on the application classification
Cutter blades, machine saw, hand saw, metal GUSHI stone polishing pads  special blade (aluminum blade, blade cut copper, stainless steel blades, etc.), pipe cutting circular saw blades, wood with a saw blade, stone blade, Qieya Ke Li saw blades
Third, the tooth can be classified according to
Toothless saw blades, triangular tooth saw blade, circular saw blade teeth, staggered tooth saw blade, the level of tooth saw blade, coarse tooth saw blade, tooth saw blade, fine-tooth saw blade, tipped saw blades
Fourth, the coating classification
White hacksaw piece (character), nitride blade (black), titanium blade (gold), chromium nitride (color), etc.
Five other classification and GUSHI concrete polishing pads  call
Cutting blade, cutting blade, cutting blade, cut saw, the overall blade, tipped saw blade, thin blade, etc.

2014年2月17日星期一

On the next to improve the quality of high-quality concrete diamond blades technical solutions

Aligned with the status quo, the end of Britain repeatedly theory, a set of production efficiency, quality diamond saw blade skills programs available.
1, the choice of the production function stable, coarse particles, heat stable and good (ti and tfi straight near to) the high-strength diamond. What is essentially a diamond diamond carcass must process conditions under fixed on the operating base, mainly by diamond grinding agent, not the same as cutting role to process the stone. Thus, the original data (diamond) quality, particle size and concentration on the diamond thing has a decisive role.
 2, although charcoal powder into a strong element of progress diamond control force. In the processing of diamond saw blades, diamond blade carcass if there is a good operating force, diamond blade is a distinguished, not prematurely fall, when cut sharp, high power. Usually top end of the outer plating layer of diamond strong carbon compound, the constituent metal elements, such as plating, titanium, chromium, nickel, tungsten, etc., in order to progress with the matrix powder of diamond bonded and sintered at high temperature to avoid favor diamond After oxidation and graphitization; other top end of the carcass can also be powder, carbon powder of a few strong increase of elements, such as: molybdenum, chromium, tungsten powder. Because this type of powder gold, moisture resistance and better affinity diamond, diamond sintering metal carcass appearance constitute carbide alloys, diamond and matrix metal in favor of chemical bonding and Metallurgy contact, and greatly improved the carcass diamond manipulation force.
  3, to improve the diamond particle size ratio. Traditional ratio, the sharp tip to more, spend more coarse diamond, and vice versa with a fine diamond. Of course yes, but it has been less than optimal operating power. Because the hardness and elastic modulus of diamond art high temperature GUSHI abrasive grinding wheels  sintering is difficult when the onset of plastic deformation. Selected ratio, before sintering progress bulk density of the diamond particles on the progress of the tool wear ratio is advantageous. Britain at the end repeated test results usually head coarse, coarse, fine diamond particles composed of three kinds, the optimal granularity share 1:0.0227:0.071. 4, the choice of ultra-fine powder and pre-alloyed powders. Ultrafine powder sintering temperature dropped in favor of progressive matrix hardness. The pre-alloy powder, the top end of the three-dimensional mixing, greatly reducing the touching moments powder and air, to avoid premature loss of the low melting point metal segregation and contribute to the progress of the strength of sintered products, increase the operating force of the diamond.
 5, increasing the excess of rare earth  GUSHI concrete ring saw elements (such as lanthanum, cerium, etc.) in a matrix powder. Contact agent can significantly decrease the wear features progressive diamond saw blade to cut the power.
  6, a selection of cold thermal sintering process, maintain vacuum sintering atmosphere. Top end of the cold tip after sintering is reflected in a very sharp cutting process, many progressive power production while maintaining a vacuum sintering atmosphere to avoid oxidation of the powder, activated sintering, both the head progress function and prolong the graphite mold The number of longevity, but also to decrease production costs.
  7, the correct welding technology, nowadays Diamond Park saw both use high-frequency welding machines to weld, the  GUSHI colde saw blade welding head is easy to show the second "burn" and head off appearance. Not only unsafe, and the impact of production, and therefore should be used in high-strength, permeability good silver solder pieces for welding production.

2014年2月14日星期五

HSS blade radiator how chamfered concrete blades

Saw blade plate quality is very important. Because the blade to adjust the rotation, it has to pass the cutting force while keeping the stability of the work . Not only has excellent static blade geometry  GUSHI carbide saw blades and accuracy , and more importantly, its dynamic characteristics. When the cutting blade continuously , the heat generated sawtooth cutting saws will be transmitted to the temperature rise of saws , saws quality in this case also to maintain the accuracy of position , and the poor quality of the blade saw board warpage occurs , the impact of cutting accuracy. Dynamic stability is particularly important for sawing boards of several pieces into a fine blade set  GUSHI colde saw blade conditions for use . When multiple devices using a set piece saw blade instability , how can guarantee the quality of the longitudinal opening material . Saw blade plate and the head is an integral part of quality . Depending on the angle of the blade to grind the teeth , with left , center and right . There are left, right , middle . Tooth tooth width ( tooth density ) with the cut material size , wall thickness of the blade a great relationship, the more books tooth wall thickness is relatively dense , thick wall thickness should open GUSHI stone polishing pads  wide more, do not understand what you can always ask me, usually online.
        To be determined according to the thickness of the blade cutting the material , size open tooth , first , on the edge of the blade off the mouth of the well , and the second , on the grinding wheel grinding is good , and the third , chamfer should be uniform.

2014年2月12日星期三

Some applications use glass blades

 It should be noted that the pre-alloy powder has been laser welded diamond saw with wood powder material of the buffer layer growth of the target object of [17,23], because: the pre-atomized powder alloy powder manufacturing process used to ensure Average ingredients conducive compressive and flexural strength improved sintering products; may reduce the brick saws  sintering temperature and shorter sintering time, especially the fate of more obvious when using ultrafine or nano pre-alloy powder; favor of pre-alloyed elements diversification and reduce the amount of cobalt. Built with reinforced concrete for large-building, with a diamond wire saw cutting orderly enumeration is very convenient, and did not happen very big noise and dust.
  2 welding process laser welding diamond saw blade woodworking are differences thick welding dissimilar materials, the impact of the tile cutter  identity of many of its welding quality, collecting the preparation before welding, laser beam quality, laser power, welding speed, focal position of the laser beam offset , the angle of incidence of the laser beam, care of the gas flow, and now in this regard should be said that the fighting strength mature.
 But the transition layer can not contain low melting point metals such as tin and other elements, these elements easily because of evaporation and vaporization stomata occur, but can intervene from a small amount of solid solution strengthening, adding to abrasion and cut and weld concrete polishing pads  porosity dip  r mn elements. Thus, in the process of these spaces can easily be metal shavings clogging the worst is leading to "burn" the work and become waste. , In the beginning of cutting and curb cutting, do not feed too fast to avoid broken teeth and damaged.

2014年2月10日星期一

Some simple requirements of concrete diamond blades

The impact of different ways of diamond production dominate the range and performance of the blade. Diamond saw blade production methods related to its hegemony, at present, the production of diamond saw dying dying making way to stop the use of sintering methods, there are few ways plated blade production, there is a common way to stop cold sintering sintering, hot pressing and sintering sintering welding three kinds  GUSHI brick saws dying approach.
Diamond saw domestic market is the largest market in the world, but in the level of the blade, variety, scope and construction skills to dominate other aspects and there are still a large gap, therefore, whether it is on the market have the skills or its development. So, with the further development of technology, diamond saw blades will dominate the succession development, market growth will inherit. Dominate the range of diamond saw blade is very strewn in the construction of stone, glass, ceramics, crystals, gemstones, iron and other materials processing and houses, avenues, bridges, etc. in both utilization. Meanwhile, along with the diamond saw blade production GUSHI core bits for concrete  skills constantly updated and mature, are constantly expanding the range to dominate in many countries have throughout fortune grip. Diamond saw blade is widely used in stone cutting aspects, something major cutting hard points, so choose only one sharp and durable diamond saw blade is very important. Types of diamond saw blades are more sharp and durability is not the same, to choose a good diamond saw blades, diamond saw blades which we need to have a detailed understanding of, or else it is easy to be fooled insiders will in the past. And each person's identification methods are not the same, which we need to understand all aspects of the appearance of the head alone can not see, a lot of things that are hypocritical. High diamond saw blade is sharp knives door requires a diamond knife fast, usually are some hard cutting some things, so diamond saw blade life will be short, easily damaged. If you want to judge from the appearance of a sharp diamond blade is GUSHI dry core drill bits  high, is a more complicated issue, and the need to explore slowly. Some people are not very professional in the manufacture of diamond saw blades, when due to the technology is not very professional, it will directly affect the diamond saw blades sharp and highly durable. One method is generally the easiest to check whether the process is cutting the wrong time to listen to the voices of hybrid and low, high, and if a single voice, the quality of diamond saw blade is better.

2014年1月22日星期三

wood saw blades are the most commonly used wood products processing and cutting

Carbide saw blade is the most commonly used wood products processing and cutting tools, carbide saw the quality and the quality of processed products are closely related. Proper selection of reasonably carbide saw blades for improving product quality, shorten cycle times, reduce processing costs is significant. Optional carbide saw what to pay attention to? Contains tooth carbide saw blades, angle, number of teeth, blade thickness, blade diameter, carbide, etc. Most types of parameters that determine the processing capacity of GUSHI diamond polishing tools  the saw blade and cutting. When you select the correct selection of the blade to blade parameters based on need.
Tooth, tooth commonly have flat teeth, Dou tooth, trapezoidal tooth, inverted trapezoidal tooth (Figure 1). Flat teeth the most widely used, mainly for ordinary wood sawing, this tooth is relatively simple, rough kerf, slotting process operating level during tooth formation can bottom. Dou teeth sawing kerf quality is better for cutting all kinds of wood-based panels, plywood. Trapezoidal tooth suitable sawing plywood, fire board, obtain higher cutting quality. Inverted trapezoidal tooth saw blade used in the bottom slot.
 Zigzag zigzag angle is in the cutting position. Serrated cutting angle affects the performance results. Greatest impact is on the cutting rake angle γ, the angle α, wedge angle β. Rake angle γ is serrated cutting edge angle, the greater the cutting rake angle more brisk, rake angle generally between 10-15 °. After the angle is the angle between the machined surface of the sawtooth between its role is to prevent the serrations machined friction surface, the smaller the angle the greater the friction, the more smooth the processing products. After the general value of carbide saw blade angle 15 °. Wedge angle is derived from the anterior horn and posterior horn out (Figure 2). But the wedge angle is not too small, it plays a role in keeping the teeth, according to strength, heat resistance, durability degrees. The rake angle γ, the angle α, the wedge angle β of the three equals 90 °.
Jagged teeth, teeth more generally, the GUSHI concrete polishing pads  more the cutting edge per unit time, the better the cutting performance, but required more and more carbide cutting teeth number, the price of the blade is high, but too dense serrated , the chip between the teeth becomes smaller, the heat is easy to cause the blade; sawtooth excessive addition, when the feed amount of mismatch, then cut per tooth is small, the friction will increase with the workpiece edge, the life impact of the blade . Typically tooth pitch 15-25mm, should be selected based on a reasonable number of teeth sawing material.
  The thickness of the blade from the saw blade in theory, we hope the thinner the better, is actually a kerf consumption. Materials and manufacturing processes carbide saw blade sawing board determines the thickness of the blade. To consider when selecting blade thickness from work and the stability of the blade sawing materials. Diameter and thickness of the blade used for cutting and sawing equipment related artifacts. Blade diameter is small, the cutting speed is relatively low; blade diameter saw blade and  GUSHI metal grinding wheel cutting equipment requirements will be higher, while cutting efficiency is high profile, angle, number of teeth, thickness, diameter, species such as a carbide combination into a whole series of parameters hard alloy saw blade, and with a reasonable choice in order to better play its strengths. Various parameters carbide saw blades should be added choose? Carbide saw blade manufacturing companies can not do so many specifications saw, according to the law and according to the current preferred specific factors wood processing enterprises equipment, materials and other components of the current series of specifications used carbide saw blades. This helps us choose carbide saw blades, but also conducive to the alloy saw blade manufacturing enterprise scale production.

2014年1月20日星期一

concrete diamond blades cutting knowledge

1 , idle : in particular, a new base for the first time , the need to idle about 30 minutes, with a high temperature in summer season water needs to idle , which aims to further eliminate the matrix of the welding head, and enhance high-speed rotating blade held at state the intrinsic quality of memory.
  2 blocks of not less than 0.5m3, and placed securely , the bottom should be well- pad wood, solid plug is secured , blocks GUSHI abrasive grinding wheels  should be located symmetrically on the table to ensure that cars and blocks of solid bench , without shaking , trembling phenomenon .
  3 , according to the blocks of length, width , height adjustment limit switch , so that the blade lift and skip the trip in a reliable and effective range. Saw blade before sawing blocks should leave a maximum 10 ~ 20mm. After sawing, saw cut blocks should be left at the bottom of the 20-40mm, blade knife before walking around to run , should make all exit blocks kerf blade distance of not less than 150-200mm, to prevent the blade hit shortage material .
 4 , the test can be carried out after cutting blade idling stability , are not allowed to start the blade edge blade , cutting blades are not allowed to stop the rotation shall be stopped after the exit kerf contact with the blocks .
 5, after cutting blocks if there shaking discovery should immediately stop cutting the blocks to be firmly fixed in order to continue to work , cutting , and are not allowed to move in any blocks .
 6 , when the cutting blade found a significant slowdown or even a folder knife phenomenon , it may be belt slippage , compression nut loose or knife to eat too much depth , the cutting speed is too fast and other reasons, should be timely adjusted .
 7, the line speed should be processed stone hardness and wear resistance to adapt , it is recommended to select the next table line speed cutting different types of stone .
Tip: line speed is not high , an increase in cutting efficiency , reduced life of the blade .
      8 , feed rate , depending on the  GUSHI concrete diamond blades performance of the processing of materials for each material when there is a certain depth of cut is constant feed speed range , if the speed is too high, the diamond will accelerate wear and tear or even fall off , causing the blade consumption too fast, if the speed is too low , then they will make the process of self-sharpening blades can not be normal , so " blunt , slip " out cutting capacity . Under normal circumstances, when you cut the feed rate to slow , sawing should be uniform , typical for common materials when cutting depth is 20mm, recommended feed rate table below for your reference , when the thickness of the cutting speed can change cutting area (cm2/min) to conversion .
   Tip : The first three times before each feed or walking plates should be halved . Common materials blade feed speed unit : mm / mi
9 , the depth of cut stone for medium  GUSHI sanding discs hardness such as marble, limestone cut through at once , for hard and abrasive stone big as granite, sandstone should step cutting, saw cutting monolithic granite , eating knife depth is generally 10-20mm , depth of cut marble cutting tool 50-100mm, multi-chip -sided cutting hard granite , each cutting tool depth of 3-5mm, should be based on the hardness of the stone , using a saw blade and performance may be recommended following efficiency table for your reference. Common materials cutting efficiency Note: " 1 " indicates a low power finishing ; " 2" indicates a high -power roughing.
10 , the rotation direction of the blade in the same direction as the feed stone along the cutting , contrary to the reverse cutting , and when the reverse cutting , because an upward vertical component is formed of stone off potential, and therefore , the solid stone, in the same conditions Next , you should try to use smooth cutting. When using inverse cutting, cutting depth to be reduced , generally reduced to shun cutting 1/3-1/2 .

2014年1月19日星期日

Diamond drill bit for drilling stone parameters

 Drilling in stone, because of relatively high speed movement between

the diamond drill and stone complex tribological phenomena arising in

the contact interface. Friction  GUISHI metal grinding wheel between diamond drill and stone, as the

stone poor thermal conductivity, most of the heat transferred diamond

segment, making diamond drill surface temperature, resulting in diamond

graphite, diamond cutting capacity reduced, which leads to the bit

matrix thermal fatigue, lower strength and stiffness, increased noise

when processing stone, increased vibration, reduce bit life, serious

diamond head off, causing injury to the operator, but also affect the

processing quality and efficiency. Research diamond bit drilling

parameters affecting its surface temperature to identify factors that

influence the relationship between surface temperature and the law,

determine a reasonable processing parameters, help to improve the

diamond drill bit life and reduce GUSHI stone polishing pads  processing costs, improve processing

quality.
   Experimental conditions
  Using Cu-diamond tip metal powder, diamond particle size of 60 to 80

mesh, using pressing sintering method, the high speed steel cylinder

head welding. Diamond drill diameter φ37mm, high-5.6mm, width 2mm,

base diameter φ35.6mm, height 45mm. Processing equipment used XK5032C

type CNC milling machine, the device implements the X axis, automatic

feed three directions Y and Z axes, spindle cooling method using water

-cooled. The temperature measured with an infrared temperature

measuring surface of the tool, the measurement temperature range of -50

~ 650 ℃. Direct l2 ℃ measured at room temperature conditions. Stone

were selected marble, sandstone and granite. This experiment studies

the spindle speed, feed rate and stone impact performance parameters

such as surface temperature of the diamond drill bit. Experiment was

conducted under dry cutting conditions, machining state shown in Figure

1.
  Analysis
  3.1 feed temperature affects the speed of
  When processing stone diamond drill, impact drill surface temperature

of many parameters, including diamond properties, performance bond,

stone physical and mechanical properties, processing parameters,

cooling parameters. Effect on the surface temperature of the diamond

drill bit experimental study of  GUSHI concrete polishing pads stone processing parameters and

performance. Figure 2 is the spindle speed is 300r/min, the feed rate

was 10mm/min, 15mm/min, 20mm/min, 25mm/min, when the surface

temperature of the pre-drill drilling marble drilling time curve. As

can be seen in Figure 2, in the four kinds of conditions of feed rate,

the surface temperature of the diamond drill bits are increased with

the increase of the processing time. In the early stage of processing,

the temperature increases relatively slowly, when the processing time

exceeds 4s, sharp increase in temperature. When the processing time

reaches 10s, the diamond drill is the initial surface temperature 5

times. Figure 3 feed rate versus temperature curve for the processing

of marble. From the figure can be seen in the feed rate l0 ~ 20mm/min

the temperature rises slowly, the feed rate of 20 ~ 30mm/min, the

temperature rise is most obvious, the most heat in this interval drills

stone processing generated. As the drilling process, the diamond drill

bit with a large stone surface friction, resulting in diamond drill

surface temperature rise. Due to the low thermal conductivity of

marble, and a high thermal conductivity of the tool, a large part of

the heat conducted to the diamond drill bit, diamond drill causes the

surface temperature. Since the feed rate increases, the cutting face of

the contact per unit time increases, the number of cutter contact with

the stone, the surface temperature increases.
  3.2 Effect of the number of revolutions of the spindle temperature
 The feed rate of 15mm/min, spindle speed was 300rpm, 400rpm, 500rpm,

diamond drill bits and drilling the surface temperature of the time

when drilling marble curve. Overall, the temperature rises with

increasing linear time. Also can be seen from Figure 5, the temperature

increases with the spindle speed. However, the temperature rise is not

obvious. When the spindle speed reaches 500r/min, the maximum

temperature of 143 ℃. Increased spindle speed. Diamond particles to

increase the number of friction per unit time and stone, long exposure

time, thereby resulting in the surface temperature increases.
Effect of temperature on the surface properties of the stone
Spindle speed of 300rpm, when the feed rate is 15mm/min. Processing of

different stone diamond drill surface temperature averages. As can be

seen from Figure 5, when the diamond drilling granite surface

temperature reached a maximum of l50 ℃, while the lowest surface

temperature processing of sandstone, is 30 ℃; temperature during the

processing of marble is 70 ℃. Stone learned through performance,

granite density 2.5 ~ 2.7kg/cm3, the compressive strength of 120 ~

250MPa, marble density of 2.5 ~ 2.7kg/cm3, compressive strength of 47 ~

120MPa, sandstone density 2.2 ~ 2.5kg/cm3, compressive strength of 47 ~

120MPa. Three stone density basically the same, but far greater than

the compressive strength of granite, marble and sandstone, almost twice

the marble and sandstone. Stone intensity increased, the cutting forces

increase, diamond tool wear serious, leading to diamond drill the

surface temperature. Can be seen from Figure 5, the surface temperature

of the diamond tool machining granite processing time is 2 times

marble, sandstone five times. You can see from the processing of the

experiment, when dry cutting granite, diamond tool surface temperature

rises rapidly, while the high temperature, resulting in a diamond

cutter head off. Granite thermal conductivity 3.49W/mK, while the

thermal conductivity of copper is 370.49W/mK, it can be seen for most

of the heat is the heat conduction through the diamond drill, which led

to a sharp increase in the surface temperature of the diamond drill

bit, Diamond badly worn.
 Conclusion
 When using diamond drill bits manufactured stone, spindle speed and

drilling speed machining parameters a great influence on the tool

surface temperature. Tool surface temperature increase with spindle

speed and feed rate increases. Diamond drill surface temperature

increases with increasing drilling time, while time is proportional to

the drilling.

2014年1月17日星期五

In the selection of carbide saw blades which should be noted when

Contains tooth carbide saw blades, angle, number of teeth, blade thickness, blade diameter, carbide, etc. Most types of parameters that determine the processing capacity of the saw blade and cutting. When you select the correct selection of the blade to blade parameters based on  GUSHI diamond discs need. Tooth, tooth commonly have flat teeth, Dou tooth, trapezoidal tooth, inverted trapezoidal tooth (Figure 1). Flat teeth the most widely used, mainly for ordinary wood sawing, this tooth is relatively simple, rough kerf, slotting process operating level during tooth formation can bottom. Dou teeth sawing kerf quality is better for cutting all kinds of wood-based panels, plywood. Trapezoidal tooth suitable sawing plywood, fire board, obtain higher cutting quality. Inverted trapezoidal tooth saw blade used in the bottom slot. Zigzag zigzag angle is in the cutting position. Serrated cutting angle affects the performance results. Greatest impact is on the cutting rake angle γ, the angle α, wedge angle β. Rake angle γ is serrated cutting edge angle, the greater the cutting rake angle more brisk, rake angle generally between 10-15 °. After the angle is the angle between the machined surface of the sawtooth between its role is to prevent the serrations machined friction surface, the smaller the angle the greater the friction, the more smooth the processing products. After the general value of carbide saw blade angle 15 °. Wedge angle is derived from the anterior GUSHI abrasive flap wheels  horn and posterior horn out. But the wedge angle is not too small, it plays a role in keeping the teeth, according to strength, heat resistance, durability degrees. The rake angle γ, the angle α, the wedge angle β of the three equals 90 °. Jagged teeth, teeth more generally, the more the cutting edge per unit time, the better the cutting performance, but required more and more carbide cutting teeth number, the price of the blade is high, but too dense serrated , the chip between the teeth becomes smaller, the heat is easy to cause the blade; sawtooth excessive addition, when the feed amount of mismatch, then cut per tooth is small, the friction will increase with the workpiece edge, the life impact of the blade . Typically tooth pitch 15-25mm, should be selected based on a reasonable number of teeth sawing material. The thickness of GUSHI sds hammer drill bits  the blade from the saw blade in theory, we hope the thinner the better, is actually a kerf consumption. Materials and manufacturing processes carbide saw blade sawing board determines the thickness of the blade. To consider when selecting blade thickness from work and the stability of the blade sawing materials. Diameter and thickness of the blade used for cutting and sawing equipment related artifacts. Blade diameter is small, the cutting speed is relatively low; blade diameter saw blade and cutting equipment requirements will be higher, while cutting efficiency is high.

2014年1月16日星期四

Alloy saw blade grinding at many factors can not be ignored when

1, the base body deformation, inconsistent thickness, a large hole tolerances, there is a problem when the substrate congenital defects, no matter the kind of device type, there are grinding errors. Substrate deformation big on two side angle bias, matrix hole large diametrical jump bias; substrate thickness is inconsistent after corner and edge front corner of bias, such as the existence of differential accumulation of work too, saw the quality and accuracy of severely affected .
 2, grinding teeth grinding effects on the structure of the alloy saw blade grinding machine structure and assembly that is good or bad, the market about two types of models: one is floating in  GUSHI core bits for concrete Germany Palmer type, class models with vertical grinding, the advantages of using hydraulic stepless all sports, all the feed system using V-rail and ball screw work, grinding or arm using the jog feed retraction rewind, adjust the center fuel tank clip, flexible support sheet Reliable, accurate positioning of teeth dial, automatic blade positioning center firmly centered, arbitrary angle adjustment, cooling rinse reasonable man-machine interface, high precision grinding, plain grinding machine design is reasonable; II, which is currently horizontal, such as Taiwan and Japan Machine type, mechanical transmission gears and mechanical gap exists dovetail slide accuracy, low clip smooth performance with film center adjustment difficult, pulling teeth institution or poor reliability, flat sides and around the corner is not a central grinding, producing large deviations , difficult to control the angle of mechanical wear disaster ensure accuracy.
 3, welding factor when welding alloys for moderate large deviations affect the precision grinding, grinding pressure while causing great pressure on the small side, rear corner also produce the above factors, the welding angle difference, inevitable human factors, all of When the grinding wheel, and other factors have an unavoidable impact. 4, wheel width on the quality and size, the choice of wheel running-gold films, pay attention to wheel size, granularity is too coarse grinding wheel produced traces wheel grinding selected fine grain size is less easy to plug, easy to burn knife. Wheel diameter and thickness is based alloy wheel width width or the length of each side of the tooth and non-alloy case may be, is not a front or corner after corner as wheel size available, can be any different tooth grinding, must be GUSHI carbide tipped saw blade  targeted to choose a suitable size wheel.
  5, grinding feed rate, alloy saw blade grinding entirely good or bad decision grinding feed rate, generally alloy saw blade feed rate 6 mm / s can not overspeed value, which should be in the 20 teeth per minute , exceeding speed is too large, will have serious knife harmartoma or burn alloy wheel produces concave surface affect the precision grinding waste into the grinding wheel 20 teeth per minute.
 6, grinding feed rate, the choice of wheel size on the amount of feed has a very important significance, suggested the use of general grinding wheel 180 # 240 # 240 # to choose the most, 280 #, 280 # to opt out 320 #, or to adjust feed rate. 7, grinding centers, all of the saw blade grinding and the substrate as the center, rather than the blade center, surface grinding center to get it out, horn, front corner with a processing center can not be sharpened a blade, grinding three blade center processes can not be ignored. Still careful observation side angle grinding alloy thickness, thickness change with different grinding center, regardless of how the alloy thickness, side grinding wheel centerline when welding position should be maintained in a straight line, otherwise the impact of cutting angle difference.
 8, dial tooth institutions can not be ignored, no matter how the structure and grinding, teeth dial coordinate system involves sharpening the accuracy of design quality, acupressure dial tooth tooth surface in a reasonable position in the transfer machines, but do not move but GUSHI abrasive grinding wheels  also its The key, when back teeth, jaw set aside should be flexible and reliable.
 9, Clips institutions: institutions clip stable and reliable labor solid, quality is the main part of the Brothers, the Brothers clip any organization can not have the slightest loosening, whether serious side grinding teeth bias control.
 10, grinding stroke, regardless of any part of the saw blade grinding, grinding, grinding stroke is very important, beyond the general requirements for wheel quit working 1 mm or 1 mm is appropriate, otherwise the impact on other teeth.
11 program options: Brothers General equipment coarse and fine grinding choice of three different programs, depending on the product requirements of the selection process when the final recommendations of the use of grinding mill rake angle.
 12, coolant grinding teeth grinding fluid that is good or bad decision given, when a large amount of cobalt tungsten grinding wheel diamond powder, not timely wheel washing and cleaning of the tool surface pores, resulting in surface grinding tool can not grind finish, there is not enough to cool it will burn alloys.

2014年1月13日星期一

How to identify and saw the matrix do good piece burr cut big reason

Saw the matrix to identify how to do: Use a permanent marker to make the hole in the middle of the blade near the logo, after the device has a flange on the blocked will not be erased; using laser GUSHI core bits for concrete  marking, such as fast peerless blade; most good is pneumatic marking. Hot rolled plate (plate oil must deformation) material production, saw tooth after punching hole and made a good fly how to remove the burr hole around the edges and tooth equipment and the way equipment with the center point of grinding (also called the hole grinder) it? Using simple equipment on bench below to make a base fixed. Tooth points glitches, buy a serrated grinding machine or by hand with a look. Why aluminum blade cut piece burr is always king, get a new blade also has a glitch, there is some kerf side has no burr burr side?
  There are two effects:
  Material: Soft hardness usually aluminum sawing down after glitches obvious, so you aluminum materials and state is not too soft
 Sawing question: blade and cutting speed, cutting equipment usually used between 5000-6000 rpm, the problem is generally GISHI concrete diamond blades  estimated that the blade is a 9-inch alloy saw Bosch ,60-70 yuan a piece, very durable Gold Fields is also available. Of course, if the condition can also buy Bosch circular saws, one to be in the vicinity of 1,000 yuan, 2100kw Bosch's encroachment up pretty good, at least much better than Rui Qi. Of course, you can also choose metal band sawing machine sawing advantage of small incision, less waste, while the cut is not as smooth, the disadvantage is the high price band, a small range of processing.

2014年1月7日星期二

The main factors which affect the efficiency of the blade

First, the cutting parameters ( 1 ) Blade speed: in practical work , saw the line speed is equipment conditions , and restrictions were sawing blade quality stone before nature. From the best blade life and cutting efficiency , the linear velocity of the blade should be selected according to the different nature of the stone . When cutting granite , the blade may be within the selected line speed 25m ~ 35m / s range. For high quartz content and difficult cutting granite , remove the saw blade line speed limit is concrete diamond blades  appropriate. In the production of granite tiles, using a diamond saw blade smaller diameter , the line speed up to 35m / s.
( 2 ) cutting depth : the depth is involved in diamond cutting wear , effectively sawing , saw the forces and the nature of the important parameters are affected by sawing stone . In general , when a high line speed diamond saw blade should be selected for cutting of small depth , from the current technology , the cutting depth of the diamond can choose between 1mm ~ 10mm . Usually large diameter saw blade when cutting granite blocks , cutting depth can be controlled within 1mm ~ 2mm between the feed rate should be reduced at the same time . When a large diamond saw blade line speed , you should select a large depth of cut. But in performance and tool strength saw the extent permitted , should try to take a greater concentration of cutting cutting to improve cutting efficiency. When the surface of the processing requirements of a small depth of cut should be used .
( 3 ) Feed speed : Feed speed 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 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 . But while sawing UNEVEN coarse structure of granite , feed rate should be reduced , otherwise it will cause the blade vibration resulting in reduced fragmentation of diamond cutting rates. Granite cutting feed rate is generally within the range of the selected 9m ~ 12m/min .
 Second, other factors a ) diamond size : diamond particle size in the common range of 30 /35 to 60/ 80. The more hard rock , should be selected with a finer granularity. Because under the same pressure conditions , the more detailed the more diamond sharp cut in favor of  tile cutting blades hard rock . Further , the general requirements of a large-diameter blade cutting efficiency high , the particle size should be selected with a coarser , such as 30 /40 , 40/ 50 ; lower small-diameter blade cutting efficiency requires a smooth cross-section of rock cutting , should to a smaller particle size , such as 50 /60 , 60/ 80.
( 2 ) Segment concentration: the so-called diamond concentration , refers to the density distribution in the working layer of diamond carcass ( ie, the weight of the diamond contained within the unit area ) . "Norms " provides the carcass per cubic centimeter work containing 4.4 kt diamond , its concentration was 100%, with 3.3 karats of diamonds , its concentration was 75%. Represents the volume concentration of the volume occupied by the number of diamond agglomerates , and that, where a concentration of 1 /4 volume of the total volume of diamond is 100 %. Increasing the concentration of diamond is expected to prolong the life of the blade , i.e., reduced because of the increased average concentration of each piece of diamond cutting forces suffered . However, increasing the depth of the blade will increase the cost , so  cutting discs there is a concentration of the most economical and the concentration increases with the shear rate increases VS .
( 3 ) the hardness of head binders : In general , the higher the hardness of the binder , the stronger its wear resistance . Thus, when a large rock cutting abrasive , hardness should be high binding agent ; when cutting soft rock material , the hardness of the binding agent should be low ; when sawing hard and abrasive rock large , the hardness of the binding agent should be moderate .
( 4 ) force effects, temperature effects and grinding damage : Stone cutting blade in the process , will be alternating load centrifugal force , cutting power, cutting fever. As the force and temperature effects caused by diamond saw blade worn donate damage .

2014年1月5日星期日

Diamond saw blade grinding requires excellent technical

There are many small factories saw blade grinding , hand workshops on the market now ; grinding only the serrated blade rake angle , a simple rough treatment, after treatment has changed the original blade angle , the blade angle , side angle , and tooth room is simply not deal with the conditions , do not be detected , correction of its processed products after grinding .
 Grinding time is longer , etc., make a note to tell you about our grinding process testing process , and related technical standards.
 A. Upon receipt of our customers need grinding blade , first of all, build customer product files , put all the blade 50 degrees Celsius warm water and soak for 30 minutes, then wash , rust, binding preliminary processing visual inspection, the obvious defects can not be abrasive products, good customer numbers marked after cleaning , but  tile cutting blades the area directly put back until after the product is completed with grinding required to the customer .
B. Then the angle with the dial gauge testing, including tooth rake angle ; hind ; side angle detection ( see no cracks , chipping , etc. ) , and then put on the projector to enlarge 50-100 times to determine the original angle serrated blade wear ; If the tooth chipping small , we can improve the grinding appropriate amount to reduce production costs.
 C. If you have alloy teeth need to be replaced , use of automatic welding machine for gear tooth exchange operations. D. Next, correction for blade stress , this step is critical blade grinding step ; requires highly experienced technicians to the completion of the diamond blade during high speed operation , the external force, the stress in the blade has been changed , it will appear saws Road bigger ; surface roughness phenomena ; we stress adjustment requires two more times ; If you can correct cutting discs  the standard range , then into the next process , on the contrary , we will contact the customer to solicit customer feedback, customer requirements as grinding, we are precision grinding, however , after the completion of the package , we will blade , diamond saw blade attached deviation specific data. We first used Japanese imports 200 grinding diamond wheel for coarse grinding particle size , particle size and then use the 600 wheel for precision grinding.
  E. Next check the vibration rate , after passing by the B -step process , final inspection, shipment region after placing fully qualified , work orders by businesses to complete the polishing process .
 Under such strict procedures , our sanding discs  products will ultimately into the hands of customers , in this sense , our products are definitely stand the test of time.

2014年1月3日星期五

Diamond grinding machine defect inspection

To our knowledge diamond grinder before installation must undergo a rigorous inspection , cracks and other defects in the diamond grinding machine is definitely not allowed to install and use . Please read on.
( 1 ) diamond grinding machine tag checks. Diamond grinder no markings or unclear, unable to verify , confirm the characteristics of a diamond diamond grinding machine grinding machine , regardless of whether there is defective , are not available ; ( 2 ) diamond grinding machine defect inspection . Its inspection methods are visual and carbide saw blades  sound checks : ① direct visual inspection with the naked eye or with other appliances inspect the diamond surface grinder for cracks or damage and other defects ;
② sound check , also known as percussion test , mainly for internal defects in diamond grinders , inspection method is to use small wooden hammer percussion diamond grinder . Normal diamond grinders crisp sound, sound dull , hoarse , indicating that there are problems ; ( 3 ) the strength of diamond rotary grinder test. The same number of diamond grinding machine models should be turning intensity random testing without strength test batch of diamond grinding machine installation is prohibited .
How to make a diamond diamond grinding wheel wear slower in our daily lives has become so widespread , that how can you slow diamond grinding wheel wear often , you know? If you do not know to  metal grinding wheel give with Xiaobian look at it .
Select the diamond grinding wheel hardness general principle is : the processing of soft metal , in order not to make premature loss of abrasive , then use a hard wheel. Wear resistance and long life . Diamond grinding wheel ratio up to 3500-5500 , a hundred times higher than normal corundum grinding wheel , 3-5 times higher than ordinary diamond wheel . When processing hard metal , in order to make timely blunt grit off, thereby exposing new abrasive grains with sharp edges ( ie, self-sharpening ) , use a soft wheel. Or because the soft material in the grinding wheel abrasive wear is slow work , without departing too early ; latter is because the grinding of hard materials , abrasive wear of the grinding wheel work faster, require faster updated. High  tile cutting blades efficiency, good overall economic efficiency . Grinding sharp, small grinding force , diamond grinding wheel dressing cycle length , less the amount of dressing , long replacement time ; long life cycle, grinding ratio , getting a better economy, use good shape retention , without regular replace the wheel and wheel dressing , saving time and improving working conditions conducive to machining operations .

2014年1月1日星期三

How to achieve the best performance multi-chip saw blade alloy

In order to play a round alloy saw its best performance , must strictly observe the following points: ( 1 ) wire tapping machine should have a good performance, no vibration. ( 2 ) the size of France blue plate diameter should be consistent about French blue plate surface in contact with the saw blade saw blade diameter of 1/ 3 ( 3 ) should be perpendicular to diamond bandsaw blades  the centerline of the hole . ( 4 ) at both ends of the gasket surface should be parallel and perpendicular to the centerline of the hole .
( 5 ) Saw spindle runout straightness and definitely not super bad, spindle diameter does not exceed the tolerance H7 (6) multi-chip saw blade clean before installing the first , if the blade body sticky with resin , thinner wiping required go, and saw the body is coated with a protective layer , it can be wiped off with hot water , avoid using corrosive solvents. ( 7 ) If the blade has insensitive , should immediately grinding , taking care to keep the original serrated cutting angle . ( 8 ) when grinding not only to choose a suitable diamond grinding wheel, but also the use of coolant. ( 9 ) blade reamer recommends no more than 20 mm of the original hole , otherwise it will lead to loss of photos , then the effect will be affected by the cutting blade . ( 10 ) Each installation must ensure law and blue plate washer clean and smooth. ( 11 ) when the repair after grinding angle and saw the body must be careful not to manual operation, will result in jagged fragments and saw the body imbalances. ( 12 ) Gangsaw installation, careful iron rack and need feeding chamber was the same level. ( 13 ) before cutting blade to check whether the tightening has been installed , to prevent slipping on the  masonry drill bits shaft displacement and the blade . 1 blade If not used immediately , it should be flat or use the hole to hang it up, can not be stacked on other items or foot flat blade cutter , and pay attention to moisture, anti- corrosion. (2) When the blade is no longer sharp cutting surface roughness , it must promptly re- grinding. Grinding can not change the original angle , and destruction balancing . 3 inner diameter of the blade correction , the positioning hole machining , etc., must be performed by the manufacturer . If the process is bad, will affect the product effect, and potentially dangerous , reaming should not be over the original aperture 20mm, so as not to affect the stress balance. Choose alloy wheels 4 .
1 ) resin bonded diamond grinding wheel bond strength is weak, and therefore capable of self-sharpening grinding is good, clogging, high grinding efficiency, low grinding force , grinding temperature is low , the disadvantage is poor wear resistance, abrasive wear and tear , it is not suitable for heavy duty grinding.
2 ) vitrified diamond grinding wheel wear resistance and superior binding capacity of the resin binder, cutting sharp, high-alloy blade grinding efficiency , easy fever and congestion, less thermal expansion , easy to control the accuracy and disadvantages coarse grinding surface , higher cost .
3 ) high metal -bonded diamond grinding wheel bond strength , wear resistance, low wear, long life, low grinding costs , can withstand a greater load, but sharp poor, easy to plug .
4 ) There grit size wheel jam circular blades  and cutting the amount of a certain influence , coarse sand and fine sand compared , large depth of cut increases abrasive wear of the cutting edge , and vice versa wheel easy to plug .
5 ) Wheel hardness greater impact on clogging , high hardness, high thermal conductivity wheel is not conducive to the surface of the heat , but help to improve the machining accuracy and durability.
6 ) Wheel concentration choice is an important feature, its grinding efficiency and processing costs have a significant impact , affecting the efficiency of the concentration is too low , whereas abrasive easy to fall off , but the best combination of agent concentration range