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add to favorites Grinding wheel cost-effective l/mile No $
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In the grinding wheel, there is split type grinding wheels and disc type grinding wheels. The flat grinding wheel is mainly used for cutting, so it is also called a cutting piece, or a resin EN12413 cutting discs. If it has special requirements, it can also have an ultra-thin cutting piece. The disc type grinding wheel is mainly used for grinding and grinding. Grinding and grinding discs are called grinding discs. Grinding discs are usually thicker and can be more durable and wear resistant in grinding. There are more and more people who use the grinding wheel because the grinding wheel has a very high-cost performance. For saw blades with the same effect, the grinding wheel is not only cheaper but also has other advantages in other aspects. The same price is better than quality, the same quality than price, this famous saying is indeed the truth. Strictly speaking, the grinding wheel is a new type of hardware product. It has only developed in China in recent years. The development process is mixed, so many manufacturers have closed down. The manufacturers that can successfully adhere to it must be very rich. Experience and advanced technical strength. Because of the objective factors such as raw materials and technology, we can't rely solely on theoretical data to complete quality stability and new product development. More practical experience and continuous experimentation are required to ensure product quality and continuously develop new products. The use of phenolic resins as binders for resin wheels is almost universally consistent. Except that the benzene ring resin (an epoxy-modified phenolic resin) is used in the most heavy-duty steel billet grinding wheel, the phenolic resin is basically used, and the formulation and process of the basic resin have been finalized. The binders mentioned here are broadly defined, and in addition to the binder itself (phenolic resin), fillers and additives are included, and the additives are highly varied. The composition of the additive ingredients actually represents what the 6 inch es cutting disc manufacturer has mastered, but the basic bonding agent has not changed much.
add to favorites Diamond cutting sheet properties l/mile No $
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Diamond cutting sheet properties First, the diamond cutting piece has high grinding efficiency, and the cutting piece consumes relatively slowly. The China cutting disc for metal has a certain elasticity, which is beneficial to improve the roughness of the surface of the workpiece and is mainly used for the processes of fine grinding, semi-finishing, knife grinding and polishing. Moreover, the diamond cutting piece has good self-sharpness, and the heat generation during grinding is small, which is not easy to block, and the work burn phenomenon occurs during grinding; The resin bond diamond cutting piece of the diamond cutting piece is low-temperature curing, the production cycle is short, the equipment and the supply process are relatively simple, and the cutting piece of the complex surface is easy to be formed because of the fluidity of the resin. It can be selected according to the product model (parallel cutting piece, parallel arc cutting piece, double-sided concave cutting piece, double bevel cutting piece, bowl type cutting piece). Their use: parallel cutting piece: mainly used for cylindrical grinding and edge machining of cemented carbide; parallel arc cutting piece: mainly used for forming grinding of hard alloy and forming grinding of circular arc surface. The above is a brief introduction to the main features of the diamond cutting blade introduction process Cutting sheet characteristics The characteristics of the cut piece include six elements of abrasive grain, particle size, binder, hardness, shape, and size. Common abrasive grains are corundum and silicon carbide. Corundum is suitable for grinding steel and general tools. Black silicon carbide is used for grinding cast iron parts, and green silicon carbide is used for grinding hard alloys. The size of the abrasive particles is expressed in terms of particle size. The larger the particle size number, the smaller the particle size. Coarse particles are used for roughing and fine particles are used for finishing. The binder for the partial abrasive grains is a ceramic binder, a resin binder, a rubber binder, a metal binder, etc., and a ceramic binder is commonly used. The hardness of the cut piece refers to the difficulty of peeling off the abrasive grains at any point on the surface of the cut piece under the action of an external force. Softer cutting discs should be used for grinding harder materials, and harder cutting materials should be used for grinding softer materials. The harder the abrasive grains on the cut piece, the higher the hardness of the cut piece.
add to favorites What are the benefits of using a free sample cutting disc? l/mile No  
With the development of the abrasives industry, there are more and more types of cutting discs on the market, but among many cutting discs, many users prefer the free sample cutting disc. Why do users like to use this type of cutting? What about the benefits of using a free sample cutting disc? Some users who have used this type of cutting disk will find the following benefits: 1.Without filling, can play a good grinding and cutting efficiency; 2.With air cooling effect, can significantly avoid the phenomenon of heating and burning on the working surface; 3.Safe, sharp, wear-resistant, non-heating, non-burning, power saving, labor saving, time saving, high efficiency and economical and practical; 4.Moderate softness can be applied to the grinding and cutting operations of curved work; 5. At the same time of work, the burrs of the working surface are removed, and the working surface is smoothed; 6.To meet the customer's requirements for non-standard customization, can be customized according to the customer's drawings or samples.
add to favorites Introduction to molding and grinding   No  
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Molding and grinding refers to a method in which a grinding wheel having a certain shape and a workpiece are moved relative to each other, or a forming grinding wheel having a predetermined shape is used, and a grinding processing method by the same turning grinding process is used.

Molding and grinding is widely used in various types of cutting tools, mold parts and stencils. The grinding wheel plays a major role in the transformation. Therefore, the performance of the grinding wheel has a very important influence on the quality and efficiency of the forming grinding.

There are three main requirements for formingthin abrasive cutting disc for metal :

1 shape retention:

Since it is a form grinding, the most important thing is naturally the shape retention ability of the grinding wheel! Good shape retention ensures precision after grinding, while reducing dressing frequency and increasing machining efficiency!

2 surface roughness after grinding

Many molded and finished products are used to move parts to each other. Therefore, good surface roughness reduces the resistance to actuation and increases product life.

3 easy to trim

If the shape retention is good, but it is not easy to trim, it will also reduce the processing efficiency.

add to favorites Mirror surface grinding effect   No  
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Mirror surface refers to a description of the good roughness that can be obtained after mechanical grinding. Just like a mirror, it is shiny and smooth, and it can be clearly called out the metal surface of the object.

Mirror surface grinding generally uses high-quality grinding wheels to achieve excellent surface roughness through precise grinding, while at the same time taking into account the good dimensional accuracy of the knife; the purpose is to effectively improve the mechanical life, reduce the cutting resistance, and in order to obtain a smooth finished product. Molds, etc. Usually the workpieces that are mirror-polished are mostly molds or workpieces that require friction to act on each other. Therefore, to achieve mirror polishing, high performance cutting discs are required. To achieve high performance cutting blades, the following requirements must be met:

Wear resistance: The rougher the surface, the smaller the contact area, the greater the pressure per unit area and the easier it is to damage.

Stable: uneven, unstable, as if driving on uneven roads.

Corrosion resistance: Roughness can easily corrode corrosive gases or liquids from the valleys, causing corrosion of the surface of the grinding wheel.

Anti-fatigue: When fatigue testing is concentrated at a certain point or part, it will amplify the fatigue strength of the grinding wheel.

Sealing: Roughness prevents parts from being tightly bonded, and gas and liquid penetrate through the gaps in contact with the surface of the grinding wheel.

Mirror surface grinding is a kind of precision grinding. The ground material can be placed on the grinding disc, the grinding wheel rotates, the correction wheel drives the workpiece to rotate, the gravity is pressed to press the workpiece, and the workpiece and the grinding disc are relatively operated to rub. Grinding and polishing purposes. The grinding disc dressing mechanism adopts the hydraulic suspension guide rail to reciprocate back and forth, and the diamond shaving cutter precisely trims the grinding surface of the grinding disc, so that the grinding disc obtains an ideal plane effect.

The mechanical processing methods for obtaining mirrors are: material removal method, no cutting method: the material removal methods mainly include: grinding, grinding, polishing, and electric spark. The material removal method must have a large amount of equipment investment; skilled and experienced technical workers; expensive grinding wheels and other prerequisites, mirror grinding still requires cost considerations without special needs.

add to favorites High-efficiency cutting wheel l/mile No $
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The high-efficiency resin EN12413 cutting discs is realized by distributing a plurality of staggered holes on the surface of the grinding wheelbase body because it has the advantages of smooth chip removal during cutting and good heat dissipation performance, and secondly, the working state of the slit is improved, and the cutting efficiency is improved. High, suitable for the cutting of metal materials with large cross-section; third, the structure is simple and easy to manufacture. An efficient cutting wheel piece characterized in that a plurality of holes are formed on both sides of the grinding wheelbase body and the holes on one side of the grinding wheelbase body and the other side holes are staggered. One such cutting feature is that the holes are through-hole holes or hemispherical holes or tapered holes. The existing cutting technology is a non-porous structure. When cutting a metal material with a large interface, as the area of ​​the slit increases, the chip removal of the incision becomes more and more difficult, and the frictional heat of the cutting material rapidly rises to generate a high temperature. As the surface hardness and physical properties of the incision change, the efficiency of the cutting is seriously affected, and even the working part of the grinding wheel is burned and the cutting cannot be continued. There are many holes on both sides of the new grinding wheelbase. The distribution of the holes needs to reach the cutting process. With the friction of the grinding wheel itself, there are many holes on either side of the outer circle of the grinding wheel. These holes bring a lot of air into the cutting. The slit has a good heat dissipation effect, and the hole can be carried by the slit at the contact surface of the slit, thereby improving the working state of the slit and improving the cutting efficiency. The structural scheme is: in the6 inch es cutting disc The base body of the base body has a plurality of holes on both sides, and the holes on one side of the grinding wheelbase body are alternately arranged with the holes on the other side, and the holes are through-hole holes or hemispherical holes or tapered holes.
add to favorites Diamond wheel nature l/mile No $
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  The characteristics of the fiber cutting disc Chinese supplier include six elements of abrasive grain, particle size, binder, hardness, shape, and size. Common abrasive grains are corundum and silicon carbide. Corundum is suitable for grinding steel and general tools. Black silicon carbide is used for grinding cast iron parts, and green silicon carbide is used for grinding hard alloys. The size of the abrasive particles is expressed in terms of particle size. The larger the particle size number, the smaller the particle size. Coarse particles are used for roughing and fine particles are used for finishing. The binder for the partial abrasive grains is a ceramic binder, a resin binder, a rubber binder, a metal binder, etc., and a ceramic binder is commonly used. The hardness of the grinding wheel refers to the difficulty of the abrasive particles falling off at any point on the surface of the grinding wheel under the action of external force. Harder materials should be used for grinding harder materials, and harder grinding materials should be used for grinding softer materials. The harder the abrasive grains on the grinding wheel, the higher the hardness of the grinding wheel. First of all, the diamond grinding wheel has high grinding efficiency and the grinding wheel is relatively slow to consume. The grinding wheel has a certain elasticity, which is beneficial to improve the roughness of the surface of the workpiece and is mainly used for the processes of fine grinding, semi-finishing, knife grinding and polishing. Moreover, the diamond grinding wheel has good self-sharpness, and the heat generation during grinding is small, which is not easy to block, and the phenomenon of work burns during grinding is reduced; The resin bond diamond grinding wheel of the diamond grinding wheel is low-temperature curing, the production cycle is short, the equipment and supply process is relatively simple; because the resin has fluidity, it is easy to form a grinding wheel with the complicated surface. It can be selected according to the product model (parallel grinding wheel, parallel arc grinding wheel, double-sided concave grinding wheel, double oblique grinding wheel, bowl type grinding wheel). Their use: parallel grinding wheel: mainly used for cylindrical grinding and edge machining of cemented carbide; parallel arc grinding wheel: mainly used for forming grinding of hard alloy and forming grinding of circular arc surface. The above is a brief introduction to some of the main characteristics of the flat abrasive cutting disc.
add to favorites What is the method for the free sample cutting disc slicing? l/mile No  
The free sample cutting disc is a popular cutting disc device in the cutting disc industry. It is now popular and popular among users. But everyone knows that even the best equipment has problems, thefree sample cutting discis the same, then when the cutting disc is sliced how do users correct the cutting piece when there is a problem? What are the finishing steps? 1. The hand grinder table is fed longitudinally to the hand wheel to bring the diamond close to the end face of the slice. 2. Install the grinding section on the round hole of the grinding wheel dresser perpendicular to the axis, adjust the position of the round bar of the slice dresser, make the diamond tip lower than the center of the polishing plate 1-2mm, and fasten the bracket. 3. After the diamond is in contact with the end face of the slice, the longitudinal feed of the table is stopped, and the hand slicer is fed laterally to the hand wheel to reciprocate the diamond back and forth at the end face of the slice. After multiple feeding and trimming, the end surface of the slice is ground into a concave plane, and the edge of the slice transmission line is left with a clip H=3 mm. Pay attention to the correction of the polished sheet: 1. Pay attention to the rigidity of the diamond rod to prevent the diamond from vibrating during correction. 2. When the correction is made, the manual feed of the table should be slow, and pay attention to the width of the control clip. 3. Generally, the end face of the grinding wheel should be trimmed first, and then the circumferential surface of the grinding wheel should be trimmed.
add to favorites Diamond wheel use and replacement considerations   No  
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Grinding wheel made in China use precautions side grinding problem In the daily use of the grinder, we often find that some operators do not divide the type of grinder, regardless of the type of grinding wheel, and use the side of the grinding wheel to grind it arbitrarily. This is a serious violation of the safety operation rules. behavior. According to the regulations, the grinding wheel with the circumferential surface as the working surface should not be ground. The radial strength of the grinding wheel is large and the axial strength is very small. When the operator is too strong, the grinding wheel will be broken and even hurt. In practice, This behavior should be prohibited during use. Positive operation problem In daily use, many operators are always accustomed to working on the grinding wheel made in China because the direction can be used. In fact, this behavior is a special prohibition in the operation of the grinder. According to the operating procedure, when grinding the workpiece with a grinder, the operator should stand on the side of the grinding wheel and must not operate on the front side of the grinding wheel to avoid the grinding wheel flying out or the grinding wheel breaking out and injuring people when the grinding wheel fails. Hard operation problem In the use of grinders, some operators, especially younger operators, are trying to grind quickly and use too much force, which is a very unsafe operation. The flatness of any grinding wheel made in China has a certain strength, which is likely to cause the grinding wheel to break, or even fly out and hurt people, it is also a behavior that should be prohibited.
add to favorites Common models of cutting blades l/mile No $
The dicing sheets are all available in a range of sizes and are selected for the object to be processed and requirements. First of all, let's first look at the number of objects we generally say. The mesh number refers to the size range of the abrasive particles. The range of sizes of abrasive particles is divided into two categories. 12#-280# is called: sand. W40-W0. 5 (or finer) is called micro powder. XX# is the size of the sieve, which is the mesh size of the first mesh that the abrasive particles can pass to indicate the particle size of the abrasive particles. WXX is the measurement size, that is, the abrasive grain is small and there is no corresponding screen to measure it, and it is represented by its actual average size. Now the abrasive grain size above 280# is also used to indicate the particle size of the abrasive particles with XXX#--XXXX#. W40-W10 is close to 320#-800# W7-W2. 5 is close to 1000-3000. Generally, the ordinary grinding wheel can reach W14 (around 600#). The problem that arises now is how to avoid burns during the cutting process and the cutting efficiency is low. The first is whether the selected grinding wheel is too high or too high. If it is too high, the metallographic structure of the burn will appear. The structure of the material cannot be accurately tested and errors occur. If the hardness is too low, the cutting efficiency will appear, and the 6 inch es cutting disc will be wasted. How to make the cutting process not burn and sharp, need to test the hardness of the material, and the correct use of the coolant. The second is to select the raw material of the resin EN12413 cutting discs, the preferred aluminum material for cutting the metal material, and the silicon carbide material for the non-ferrous metal and non-metal materials. Because the aluminum material used for cutting metal materials does not chemically react with the chemical components in the metal, it is advantageous for cutting. Non-metallic and non-ferrous metals have low chemical activity, and the silicon carbide material itself has smaller chemical activity than alumina, better cutting performance, less burn, and less wear. Again, the particle size is chosen to favor cutting. If the sharpness is required, the coarser grain size should be used. If the cutting requirements are high precision, abrasives with a finer grain size should be used. In short, the problem in the cutting process should be determined first in the hardness and material of the sample. In the targeted selection of cutting material.
add to favorites 7''cut off disc for metal   No  
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According to the thermal stability of the diamond abrasive, the firing temperature of the grinding wheel and the refractoriness range of the bonding agent were determined. The reaction of several oxides at the firing temperature of the hot sale cutting wheel and the diamond abrasive was analyzed by using the free energy generation principle of the oxide. The chemical composition of the binder was determined. According to the glass structure theory, the content of each component in the binder was determined, the binder formulation was determined, and it was used in industrial production.
add to favorites The correct choice of cutting blades l/mile No $
Although there are many types of cut pieces on the market, how to choose the right suitable cut piece is the most important. Today we will come to understand the correct choice of cutting blades. First, the occasion of use When we choose the China cutting disc for metal, we first choose the right one depending on the occasion of the cutting piece. Because the performance requirements of the cutting piece are different for different applications, it is important to choose a reasonable cutting piece. We need to choose the cutting piece according to the occasion we use, which can increase the safety factor, improve work efficiency and reduce our use cost. Second, the choice of cutting blades for ordinary cutting machines Ordinary cutting machines usually refer to fixed cutting machines, cutting machines with a power of <3 kW and a rotational speed of 2900 rpm. Ordinary cutters typically cut workpieces that are less than 50 mm in diameter. However, due to the small cutting power in order to reduce the radial frictional resistance, we usually choose a cutting piece with a thickness of 3.2 mm. The cut piece is thinner and has a certain elasticity, and it feels sharper when cut. Third, high power cutting machine cutting blade selection High-power cutting machines usually use a cutting power of more than 5.5 kW, a speed of 2800 rpm, and a large diameter of the cutting workpiece. Because the torque force during cutting is large, the damage to the cutting piece is also relatively large, so the cutting piece is required to have a certain rigidity. Therefore, under normal circumstances, we will use a cutting piece with a thickness of 3.8 mm.
add to favorites What is the abrasive material of the T41 green cutting disc size? l/mile No  
With the increasing market size of T41 green cutting disc size, there are many companies that produce cutting discs on the market. The size of the cutting discs produced by different companies is different from the materials used, and for some users who have not touched the cutting discs. I don’t know what the basic material of the production cutting disc is. Today, the professional cutting disc manufacturer Aurora Abrasives gives you an analysis of some abrasive materials for the production of cutting discs. Commonly used abrasives for T41 green cutting disc sizeinclude brown jade (A), white corundum (wA), black corundum (BA), black silicon carbide (c), etc. The most commonly used is brown fused alumina, because brown fused alumina has high hardness and toughness. The particles are sharp, the applicability is strong and the price is lower than other abrasives. Brown fused alumina is divided into primary sand and secondary sand according to its reduction during smelting, mainly in chemical composition: Al2O3 content of primary sand is ≥94.5; Al2O3 content of secondary sand is <94.5%; generally 85% Left and right, and the Fe2O3 content is 4 to 5%; therefore, the secondary sand hardness is lower than that of the primary sand, but the price is also low; the brown corundum is suitable for the processing of various carbon steels and general alloy steels; the white corundum is higher in hardness than the brown corundum. It has large brittleness and small grinding heat. Because of its high price, it is used for heat deformation of workpieces. It is also used as a mixed abrasive for special material processing. The content of Al2O3 in black corundum is 70-85%, and the content of Fe203 is 7-9. Low hardness, poor cutting force, but the price is also cheap; black silicon carbide has high hardness and good brittleness, sharp cutting edge, good self-sharp performance, good thermal conductivity, and advantages in processing non-ferrous metals, plastics, rubber and cast iron.
add to favorites How to effectively overcome the limitations of heat resistance l/mile No $
For a long time, how to improve the heat resistance of the resin EN12413 cutting discs, so that it can work normally under high-temperature conditions, and to avoid weaknesses has always been a problem that has been plagued by the industry. Many people have tried to improve the heat resistance of the resin itself, and tried to break through the research of new resin synthesis or resin modification, and made some progress. However, as a member of the organic material family, its physical and chemical properties determine its space for heat resistance improvement. We only need to look at the fact that polyphenylene sulfide (PPS) has a heat-resistant temperature limit of 400 ° C and polyphenylthiazole can only withstand 500 ° C. Others have made a fuss about the metal powder formulation of resin binders. It is hoped that by increasing the proportion of metal components such as Cu powder with good thermal conductivity, the effect of rapidly transferring the grinding heat from the "metal bridge" can be achieved. Regardless of the effectiveness of this "bridge", the increase of metal powder not only increases the cost of the formula but also changes the microstructure hardness of the resin bond diamond cutting disc, which will inevitably have a negative impact on its sharpness and self-sharpness. The author tried to find another way. Based on the characteristics that some substances absorb a large amount of thermal energy during phase change, the resin bond cutting disc formulation disc change is used to obtain the "self-heating" performance of the resin bond diamond cutting disc. After trial and screening, it has indeed achieved breakthroughs in improving its heat dissipation performance and has obtained the national invention patent: "Strong heat-dissipating resin diamond cutting disk" (Patent No.: ZL01129089.7 International Patent Main Classification: CO8J 5/14). The resin bond diamond cutting disc produced by the invention patent has always maintained a good working state during grinding, and the advantages of the conventional resin bond diamond cutting disc are outstanding: (1) Sharp grinding, no clogging when used, less noise; (2) The working layer of the cutting disc has no cracks during operation, and “de-ringing” (ie, the diamond working layer and the metal substrate are separated from each other under the action of grinding heat) occur; (3) There is no crack, ablation or metallographic structure change on the surface of the workpiece; (4) The working layer of the cutting disc has high strength and can withstand the grinding feed amount more than 10 times larger than the traditional resin bond diamond cutting disc; (5) The working layer of the cutting disc is resistant to wear, and the service life of the 6 inch es cutting disc of the same specification, particle size and concentration is more than 20%; Grinding the same workpiece, the grinding cost is 15% lower than the traditional resin bond diamond cutting disc of the same specification, particle size, and concentration.
add to favorites How to make a choice for limestone sand making machine facing blocking problem?   No  
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When the sand making machine is inadvertently, it will encounter the problem of blocking the material, which will cause the production capacity to drop. If you want to solve this problem, you should find the reason. The letter is summarized as follows. Let's take a look! 1. The discharge port is improperly adjusted. In the production process of the crusher, if the speed of discharging the material is too slow, the material that is subsequently crushed will be accumulated in the discharge port and the crushing chamber, causing obstacles in discharging. 2, the material has a large water content If the moisture of the material is too much, it may stick to the sand making machine. An effective solution is to pre-heat and other treatment at the inlet. 3, the feed rate is too fast The feeding speed and the processing speed are not well matched, the feeding is fast, the crushing is slow, the discharging is not enough, and the equipment is prone to overload work, which may cause the phenomenon of blockage, so it is necessary to ensure the feeding of the sand making machine. The uniformity and continuity of the feed reduce the problem of blockage of the equipment. 4. The tightness of the V-belt is not appropriate. The production process of the sand making machine is to transfer the power to the sheave by the V-belt, and then crush the stone. When the triangular belt is loose, it will cause slippage, and the sheave will not be driven as the sheave rotates. The material cannot be subjected to normal crushing force and cannot be pulverized in the crushing chamber, and then the material blocking phenomenon occurs. 5, improper manual operation This is one of the more common reasons for sand blockers. The operator of the sand making machine must go through the training of the system and understand the equipment before it can be put on the job. Otherwise, it will not only cause the production capacity of the equipment to be low, but also cause damage to the equipment over time. The above points are the countermeasures for the limestone sand making machine facing the problem of blocking materials, and I hope to help our users.
add to favorites How to develop the China abrasive tools for metal market in the future? l/mile No  
How to develop the China abrasive tools for metal market in the future? Metal grinding tools are the development trend of future grinding equipment. So how is the future development of the metal grinding tool market? The following Aurora analyzes the development market. With the continuous development of the society, the grinding tool market is quietly changing. Some rough processing small enterprises will gradually withdraw, and large-scale grinding tool production lines will be scaled up. This is the main trend of the current and future powder market. It is necessary to know that mineral resources are now gradually classified as state-owned, that is, they do not want to be indiscriminately opened, or that large-scale processing enterprises are required to carry out scale production, so that on the one hand, the quality of processed products can be guaranteed, and on the other hand, it is easy to manage. Large-scale production, it is necessary to use metal grinding tools, manufacturers that can produce large-scale equipment with strength, are old-fashioned enterprises, can guarantee the quality, and can also strengthen the confidence of powder enterprises. Then how to position the metal grinding tool market, can now be said to be a large grinding tool, basically at least 6 tons per hour, said large, on the one hand, the equipment is bulky and heavy, on the other hand, the price is high, so Large-scale products, there are not many production capacity in the market. Therefore, the development of China abrasive tools for metal market is still very strong in the future.
add to favorites Grinding wheel blockage problem l/mile No $
The types of grinding wheel blockage are embedded type, dependent type, adhesive tape, and mixed type. The embedded type plugging is a blocked state in which the grinding debris is embedded in the air hole of the working surface of the grinding wheel. Dependent plugging is a clogging condition in which the abrasive particles are attached to the flank of the China cutting disc for metal by temporary force. Adhesive plugging refers to adhesion to the periphery of the abrasive cutting edge or the adhesive after the grinding is melted. A hybrid plug is a collection or set of layers of the above three types at a certain location. Adhesive blockage mechanism Mechanism of embedded and dependent plugging The embedded type and the attached type of plugging are clogging phenomena in which the abrasive chips are mechanically filled in the gap of the grinding wheel. The power of filling comes from two aspects, one is external and the other is internal, involving physical, electrical, thermal and other factors. External factors: There is a very important feature in grinding. The radial grinding component Fy is larger than the tangential component Fz, Fy/Fz ≥ 2~10. The harder the workpiece material is, the smaller the plasticity is. The larger the Fy/Fz ratio is. Thus, the grinding debris of the grinding zone is mechanically squeezed into the gap of the surface of the grinding wheel under the action of strong positive pressure. From the microscopic analysis, the grinding debris slides out along the front of the abrasive grain, and a few layers of wear debris accumulate in the local area in front of the abrasive grain. After the abrasive grain, due to the high-speed rotation of the grinding wheel, a vortex zone is formed, and the vortex zone is formed. The air pressure is significantly reduced. Under the action of negative pressure, part of the abrasive debris is attached to the back of the abrasive grain to form a dependency clogging of the abrasive flank, and most of the attachments are ash and particles. The role of the electrostatic field: the relative speed of the grinding wheel and the workpiece is V and much larger than V work, V seconds of ordinary grinding machine = 3 ~ 50m / s, the mature value of the grinding speed of high-speed grinding machine in China is 50 ~ 80 / s, foreign test The speed is from 200m/s to 250m/s, and the speed of the workpiece is below 1.5m/s. When the grinding wheel and the work are moving relative to each other, in the grinding zone, the grinding wheel and the surface of the workpiece will be charged according to a certain regularity due to the escape of electrons. At the same time, the gas in the grinding zone will also be excited to discharge due to the high temperature, so that the neutral gas is ionized into positive ions and electrons. In some small areas of the grinding zone, a small electric field consisting of a grinding wheel and a workpiece is formed. In the electric field, there are neutral atoms, positive ions, electrons, impurities, dust, not only the process of neutralization of neutral atoms but also positive The process of complexing ions with electrons. Under the action of the electric field, part of the grinding debris will exhibit polarity. According to the principle of opposite attraction, the grinding debris with the opposite polarity of the grinding wheel is adsorbed on the working surface of the grinding wheel. Since the electric field strength is small, the adsorption force is also weak, and the grinding debris is not reliable on the surface of the grinding wheel. However, with the large mechanical pressure between the grinding wheel and the workpiece, the grinding debris that has been adsorbed on the surface of the grinding wheel can be stably embedded in the grinding wheel. Between the gaps on the surface.
add to favorites Resin cutting sheet safe use method l/mile No $
Resin cutting sheets, also known as resin grinding wheel sheets, are mainly resin abrasives made of chemical synthetic fiber fabrics, which have relatively high tensile, impact and flexural strength, and have high line speed when used. Resin grinding wheels are often installed on electric and pneumatic sanders. They can repair various metal surfaces, clean welds, welds, rust, sand burrs, flash edges, repair surface defects, and workpiece grooving and cutting. jobs. The use of resin grinding wheels is efficient and safe and is suitable for chemical, shipbuilding, machinery, automotive, construction, and other industrial sectors. Safe use of cutting blades: 1. Use an angle grinder with a safety cover, a cutting machine with a safety cover; 2. Wear protective glasses, masks, earplugs, gloves, dustproof clothing; 3. The high use cycle speed of the China cutting disc for metal is used below the high number of revolutions; 4. The side of the resin cutting sheet cannot be used; 5. Use the correct flange. No enhancement: 1/3 or more; there is enhancement: 1/4 or more; 6. Before use, confirm that the resin cutting piece has no missing edges, no cracks, no cracks, etc. 7. Store the resin cutting piece in a place where there is no direct sunlight, no moisture, and place it horizontally; 8. Shandong Weiyuan Abrasives Co., Ltd. recommends that before using the ultra-thin resin cutting sheet, please use it for one minute and then use it. When replacing the new type of resin cutting sheet, please idle for 3 minutes before using it; 9. The fixed object is firmly fixed; 10. If the inner diameter of the resin cutting piece is small and the device does not match, please do not change the hole diameter of the grinding wheel. Do a good job of the above safety protection measures to ensure the smooth progress of high-efficiency production work!
add to favorites Sintered diamond wheel introduction   No  
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Ceramic diamond wheel ceramic bond diamond grinding wheel has the common characteristics of diamond and ceramic bond. Compared with ordinary corundum and silicon carbide grinding wheel, its grinding force is strong, the grinding temperature is relatively low, and the grinding wheel wear is relatively small; The role of the coolant; the shape of the grinding wheel is good during grinding, the precision of grinding the workpiece is high; there are more air holes in the 7'' cut off disc for metal which is good for chip removal and heat dissipation during grinding, not easy to block and not easy to burn the workpiece; The self-sharpness is better, the trimming interval is longer, and the trimming is easier. Therefore, the use of ceramic bond diamond grinding wheels in some developed countries abroad is increasing.

Sintered diamond wheel

The metal bond diamond grinding wheel mainly has two types of sintering and electroplating depending on the manufacturing method. In order to give full play to the role of super-hard abrasives, foreign countries began to develop a new type of grinding wheel by high-temperature brazing process from the early 1990s, that is, single-layer high-temperature brazing super-hard abrasive grinding wheel. At present, this kind of grinding wheel is still in the research and development stage.

The sintered metal bond grinding wheel is mostly made of a metal such as bronze as a bonding agent, and is manufactured by a high-temperature sintering method. The bonding strength is high, the formability is good, the high temperature resistance, the thermal conductivity and the wear resistance are good, the service life is long, and a large load can be withstood. Because the grinding process of the grinding wheel inevitably has shrinkage and deformation, the grinding wheel must be shaped before use, but the dressing of the grinding wheel is difficult. At present, the common grinding wheel rolling method is not only time-consuming and labor-intensive, but also the diamond particles fall off during the dressing process. The dressing wheel itself consumes a lot and the shaping precision is low.

add to favorites A small knowledge of ultra-thin resin cutting sheets l/mile No $
There is a lot of knowledge about ultra-thin resin cutting sheets, but for those of us who don't touch these things, we only need to know some furs. Below we will introduce some tips for you. I hope you can find out and maybe help in the future. you. 1. Store the resin customized metal cutting disc in a place where there is no direct sunlight, no moisture, and place it horizontally; 2. The side of the resin cutting sheet cannot be used; 3. The fixed object is firmly fixed; 4. Use the correct flange. No enhancement: 1/3 or more; there is enhancement: 1/4 or more; 5. If the inner diameter of the resin cutting piece is small and the device does not match, please do not change the hole diameter of the grinding wheel. 6. Before starting to use the ultra-thin resin cutting piece, please use it for one minute and then use it. When replacing the new type of resin cutting piece, please idle for 3 minutes before using it. 7. Wear protective glasses, masks, earplugs, gloves, dustproof clothing; 8. In the high-use peripheral speed of the ultra-thin resin cutting piece, the use of the high number of revolutions; 9. Using an angle grinder with a safety cover, a cutting machine with a safety cover; 10. Confirm that the resin cutting piece has no missing edges, no cracks, no cracks, etc. before use;