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juniperqq
| Points: 360 | Last online: 11.20.2018
Date registered
08.30.2018
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    • juniperqq has written a new blog article "Grinding Disc - The Effect Of Specifications On The Workpiece" Today

      The specification of the high quality grinding disc determines the influence of the surface roughness of the grinding disc on the performance of the part: the smaller the surface roughness value of the grinding disc, the better the wear resistance, corrosion resistance and fatigue resistance of the part. The larger the surface roughness value of the grinding disc specification, the opposite is true.

      In the grinding process, it is necessary to pay attention to the high quality grinding disc specifications to reduce the surface roughness. The main process factors affecting the surface roughness of the grinding process have a significant influence on the grain size of the grinding disc. The finer the grain size of the grinding disc, the more abrasive grains involved in the grinding, the lower the surface roughness of the grinding. The high quality grinding disc specifications in the processing of general grinding, take the 46-80 size grinding disc, fine grinding should use 150-240 size grinding disc, mirror grinding should use W10-W7 particle size resin graphite grinding disc, can A good surface roughness of the workpiece is obtained.

      In recent years, with the development and application of new technologies and the development of high-precision grinding technology, the specifications of high quality grinding discs are becoming more and more abundant, the grinding size is 0.1-0.3μm, the surface roughness is 0.2-0.05μm, and the surface deterioration layer and residue are ground. The stress is very small and the processing quality is significantly improved. Form grinding, especially high-precision forming grinding, is often a key issue in life.

      There are two problems in forming grinding:
      1.The grinding disc quality: Mainly the grinding disc must have good self-tanning and shape retaining at the same time, and the two are often contradictory.
      2.The high quality grinding disc dressing technology: that is, efficient and economical to obtain the required disc profile and sharpness. Therefore, in order to improve the efficiency and precision of grinding, especially for the efficient finishing of difficult-to-machine materials, CBN grinding discs are used for efficient and powerful grinding, which makes the powerful grinding break the limitation of traditional grinding, and the productivity is doubled. It does not need to be roughed and can be directly ground into finished products, which not only improves the processing efficiency, but also improves the processing quality. In the grinding process, the correct choice of the high quality grinding disc plays a decisive role in the efficiency of the machining.

    • juniperqq has written a new blog article "Something About China Grinding Wheel Supplier" Yesterday

      China grinding wheel supplier talks about the role of ultra-thin resin cutting wheels: ultra-thin resin cutting wheels occupy a very important position in the abrasive market, and the products are welcomed by the market for their excellent performance, and their market prospects are broad. What is the grinding wheel in the next few years? The ultra-thin resin cutting wheel is the latest abrasive market report, including China, Korea and other domestic Asia Pacific regions. Driven by the development of high-speed industry, it will become the largest and fastest-growing resin grinding wheel grinding machine before 2018. As the market grows, the compound annual growth rate is as high as 6.5%.

      China grinding wheel supplier is considering the demographic factors driving the market. The development prospects of the ceramic wheel market in emerging economies - Eastern Europe, Asia, Latin America, Middle East countries and Africa are expected to exceed the traditional markets of the United States, Japan and the United States. Western Europe is an important downstream industry.

      If you want to know more, you can pay attention to Henan Aurora Abrasives Co., Ltd. We are a China grinding wheel supplier, specializing in the development and production of grinding wheel cutting discs, ultra-thin grinding wheels and special equipment for abrasives in Henan. Interested friends are welcome to visit the website.

    • juniperqq has written a new blog article "grinding wheel - what details need to be paid attention to during use" 11.17.2018

      Abrasives manufacturers say that in order to increase the safety factor when operating the China long life grinding wheel, some details must be paid attention to. Today, let's take a look at the details that need attention: before starting to use the grinding wheel, please idle for one minute. When using it again, when replacing the new type of grinding wheel, please idle for 3 minutes before using it; be sure to use the correct flange

      Use an angle grinder with safety cover, cutting machine with safety cover; be sure to fix the cut material firmly when using it; users must wear protective glasses, masks, earplugs, gloves, dustproof clothes, etc. Take protective measures. Keep the China long life grinding wheel in a place where there is no direct sunlight, no moisture, and place it horizontally. If the inner diameter of the grinding wheel is small and the equipment does not match, please do not change the hole diameter of the grinding wheel; the highest use of the China long life grinding wheel Week speed, the highest use of the number of revolutions; use before confirming the grinding wheel without missing edges. No cracks, no cracks, etc.; absolutely can not use the side of the grinding wheel. Only pay attention to the details of the above operation of the grinding wheel, in order to increase their own safety One layer of protection.

      If you want to know more about the China long life grinding wheel, you can pay attention to Zhengzhou Shuangling Abrasives Co., Ltd. We are specialized in grinding wheel cutting, grinding wheel ultra-thin, Henan abrasive abrasive equipment special equipment development and production management business. Interested friends are welcome to come to the inquiry.

    • juniperqq has written a new blog article "Method of selecting a cheap grinding disc" 11.16.2018

      Do you know how to choose a cheap grinding disc? The following Chinese disc manufacturers teach you how to choose the disc: good uniformity and no cracks are the basic appearance of high-quality grinding discs; sophisticated packaging and printing anti-counterfeiting barcodes are the difference between the factory products and counterfeit goods.

      The general rule of cutting and polishing is that the amount of iron to be removed is small, the wear is low, the cheap grinding disc is too hard, the amount of iron to be removed is small, the wear is too large, the material is too bad, the quality of the inner quality is as little as possible, the maximum amount of iron removal, and the feel at the same time. Good; for carbon steel, alloy steel, cast steel, stainless steel, copper and aluminum, glass stone, because their tissue density and heat status are different, it also determines the difference when choosing the cheap grinding disc; for glass stone, on the market There are special glass stone cutting and polishing tools; copper aluminum and stainless steel solid materials are used for cutting or grinding sheets with lower thickness or zirconium corundum as substrate.

      The knowledge about the cheap grinding disc is introduced here. If you want to know more, you can pay attention to Henan Aurora Abrasive Tool Co.,Ltd. We are specialized in grinding disc and grinding wheel production and management. Welcome to buy.

    • juniperqq has written a new blog article "The Influence Of The High Quality Grinding Disc" 11.15.2018

      The influence of the specifications and surface roughness of the high quality grinding disc in 4 inches China grinding disc factory on the workpiece.

      The specification of the high quality grinding disc determines the influence of the surface roughness of the grinding disc on the performance of the part: the smaller the surface roughness value of the grinding disc, the better the wear resistance, corrosion resistance and fatigue resistance of the part. The larger the surface roughness value of the grinding disc specification, the opposite is true.

      In the grinding process, it is necessary to pay attention to the high quality grinding disc specifications to reduce the surface roughness. The main process factors affecting the surface roughness of the grinding process have a significant influence on the grain size of the grinding disc. The finer the grain size of the high quality grinding disc, the more abrasive grains involved in the grinding, the lower the surface roughness of the grinding. Grinding disc specifications in the processing of general grinding, take the 46-80 size grinding disc, fine grinding should use 150-240 size grinding disc, mirror grinding should use W10-W7 particle size resin graphite grinding disc, can A good surface roughness of the workpiece is obtained.

      In recent years, with the development and application of new technologies and the development of high-precision grinding technology, the specifications of high quality grinding discs are becoming more and more abundant, the grinding size is 0.1-0.3μm, the surface roughness is 0.2-0.05μm, and the surface deterioration layer and residue are ground. The stress is very small and the processing quality is significantly improved. Form grinding, especially high-precision forming grinding, is often a key issue in life.

      There are two problems in forming grinding:
      1.Grinding disc quality: Mainly the grinding disc must have good self-tanning and shape retaining at the same time, and the two are often contradictory.
      2.The high quality grinding disc dressing technology: that is, efficient and economical to obtain the required disc profile and sharpness. Therefore, in order to improve the efficiency and precision of grinding, especially for the efficient finishing of difficult-to-machine materials, CBN grinding discs are used for efficient and powerful grinding, which makes the powerful grinding break the limitation of traditional grinding, and the productivity is doubled. It does not need to be roughed and can be directly ground into finished products, which not only improves the processing efficiency, but also improves the processing quality. In the grinding process, the correct choice of the high quality grinding disc plays a decisive role in the efficiency of the machining.

    • juniperqq has written a new blog article "4.5 Inches Grinding Wheel Thermal Curing Resin Method" 11.12.2018

      With the advancement of production technology, 4.5 inches grinding wheel thermosetting resin is gradually replaced by photocurable resin. Photocrosslinking polymer, initiator and additive composition. The most essential difference between it and the thermosetting resin is that the curing process is based on absorption. The chemical reaction caused by the wavelength of light radiation causes the photocurable resin to change from a liquid to a solid.

      The conversion from liquid to solid is the result of an increase in molecular weight, rather than the evaporation of the solvent, so it has the advantages of rapid solidification, no pollution, and energy saving, but the constraint factor is that the raw material price is higher. 4.5 inches grinding wheel is made by photocuring resin method. On the other hand, China has successfully developed ultra-thin diamond cutting wheels with a thickness of 0.15mm using photocurable resin as a bonding agent, and successfully completed the cutting test of single crystal silicon wafers.

      The knowledge about 4.5 inches grinding wheel is introduced here. If you want to know more, you can pay attention to the Henan Aurora Abrasive Tool Co., Ltd., welcome new and old customers to buy 4.5 inches grinding wheel.

    • juniperqq has written a new blog article "The characteristics of China abrasive tools for metal" 11.09.2018

      The use of China abrasive tools for metal is the finishing and precision machining of the surface of the part, which has the following characteristics.

      1. Grinding dimensional accuracy is high. Grinding with China abrasive tools for metal uses a very fine powder to grind a very thin layer of metal at low speed and low pressure. The heat generated during the grinding process is small, the deformation of the workpiece is small, and the surface metamorphic layer is very slight so that a highly accurate surface can be obtained. The dimensional accuracy of the grinding can reach 0.01Um.

      2. The surface shape is highly accurate. Grinding with China abrasive tools for metal has a small amount of cutting, is complicated in motion, and is not affected by the accuracy of motion, so that high shape accuracy can be obtained. The roundness of the sphere can reach o. Yang four, the cylinder has a cylindricity of up too. On the other hand, since the amount of grinding is small, the original positional error cannot be completely corrected, so the grinding cannot improve the positional accuracy of the part.

      3. Surface rent roughness value There is a certain relative motion between the small part and China abrasive tools for metal. Each movement track will not repeat with the previous motion trajectory, so the peak on the surface of the part can be evenly removed to reduce the surface roughness. The surface roughness of the abrasive surface is generally up to Rd. 01M.

      4. Improve the resistance of the surface of the part. When grinding with China abrasive tools for metal, the surface roughness is small and the surface friction coefficient is reduced. The effective contact area increases the wear resistance.

      5. Improve the surface of the parts. When China abrasive tools for metal are used for grinding, there is compressive stress on the surface layer, which is beneficial to improve the fatigue strength of the surface of the part.

      6. Good craftsmanship. Abrasives are simple and easy to manufacture: Grinding is not only suitable for single-piece manual production, but also suitable for batch mechanized production; grinding can process steel, cast iron, various non-ferrous metals, and non-gold scraps. For example, hard and brittle materials such as glass, ceramics, and diamonds can be studied.

      7. The wide range of applications. Abrasive grinding is widely used in the processing of various precision parts in modern industrial production. Various block gauges, optical glass, precision China abrasive tools for metal, semiconductor components, precision mating surfaces, etc., need to be ground.

    • juniperqq has written a new blog article "Diamonds For 4.5 inches grinding wheel, Other Applications?" 11.08.2018

      Diamonds made of hard and brittle materials for 4.5 inches grinding wheel, in addition to stone, various silicon crystals and quartz glass, and with the development of modern industry and the continuous advancement of science and technology in China, diamond can be used not only on 4.5 inches grinding wheel.

      Diamond is a material with high hardness in nature. Diamond 4.5 inches grinding wheel and diamond saw are diamond tools. They are mainly used to process hard and brittle materials. Various tools have different processing characteristics, and the application range is not the same, but its The wear principle during use is basically the same. Hard and brittle materials will produce high temperature and high heat due to the intense friction during processing. This wear process has to go through three stages, that is, the wear process has a transitional stage. The stages are: fast wear stage, stable wear stage, in which the wear rate is about constant and the wear rate is relatively constant, and the third stage is the accelerated wear stage.

      Continuous research has found that the wear of 4.5 inches grinding wheel is different during the transition phase and the stable wear phase. In the transitional stage, the wear and the preparation method of the grinding wheel, the material characteristics and specifications of 4.5 inches grinding wheel are closely related. The wear in the stable stage is mainly friction and wear, the abrasive wear is mainly the friction wear, and the subsequent accelerated wear stage is Everyone is worth noting because, at this stage, the wear and tear of the tools have reached the limit.

    • juniperqq has written a new blog article "The Life Of Cheap Metal Grinding Disc" 11.07.2018

      The life of grinding disc is related to the quality of the grinding disc to a certain extent. But it cannot be said that the quality of the cheap metal grinding disc must be bad. If you need a grinding disc of high quality grinding disc factory price, please contact us. Let's share what is the life of the grinding disc.

      The actual grinding time between two dressings of the cheap metal grinding disc is called the disc life. Judging the life of the grinding disc is generally determined visually based on the phenomenon produced after the working surface is worn.

      The main phenomena are: the self-excited vibration of the cheap metal grinding disc during grinding, the regenerative vibration on the surface of the workpiece; the grinding noise increases; the grinding wear on the surface of the workpiece occurs, the grinding force increases or decreases sharply; the grinding precision decreases; The grinding surface roughness is increased. These phenomena are mainly caused by the fact that the cheap metal grinding disc is overheated, causing thermal damage to the surface of the workpiece and a decrease in roughness and precision due to self-excited vibration.

      Cheap metal grinding disc end of life form: grinding disc surface passivation - smoothing state (will increase grinding force and grinding heat); grinding disc blockage (prone to vibration or noise and to burn); grinding disc contour damage (affecting machining accuracy)

    • juniperqq has written a new blog article "What affects the quality of the grinding wheel" 11.06.2018

      Rotational strength refers to the ability of the grinding wheel for stainless steel to resist cracking under the action of centrifugal force, reflecting the tensile stress of the grinding wheel. It is a very important indicator of the manufacture and use of the grinding wheel. In order to ensure the safe use of the grinding wheel for stainless steel grinding wheel, the standard classifies the unsatisfactory slewing strength as a "fatal defect", that is, "a defect that is dangerous or unsafe to the user or the device". The sampling inspection scheme is that the number of samples is n=10, the number of receptions is Ac=0, and the number of rejections is Rc=1; that is, the rotation strength of 10 grinding wheels must be all qualified, and if one piece fails, it is judged as unqualified.

      Quality inspections over the years have found that the slewing strength of fiber reinforced resin sheet grinding wheel for stainless steels is not ideal, some are lower than the high working speed, some ruptures when the speed is not up to the specified slewing test speed; some also reach the test speed but cannot be maintained for 30 s. . The unsatisfactory ratio of the rotation strength is 7.1% to 18.7%.

      When the fiber-reinforced resin sheet grinding wheel for stainless steel and the 钹-shaped grinding wheel are used, most of them are hand-held cutting and grinding, and the distance between the operator and the grinding wheel is relatively close. Therefore, once the rotating strength is poor, the grinding wheel is broken during the cutting or grinding process, which is liable to cause personal injury or death.

      Unsatisfactory static balance The grinding wheel for stainless steel is an inhomogeneous object. When the grinding wheel rotates, it will cause vibration because its center of mass does not coincide with the center of rotation. This state is called the imbalance of the grinding wheel. Wheel imbalance can bring a lot of harm:
       
      Acting on the grinding machine bearing, causing the main shaft to vibrate and accelerate the wear of the grinding machine spindle;
      The additional increase of the rotary stress on the grinding wheel for stainless steel reduces the rotational strength and may even cause it to rupture upon rotation;
      The vibration of the grinding wheel for stainless steel and the workpiece system is intensified, which is manifested by the occurrence of vibration marks on the surface of the workpiece to be processed, and the machining accuracy and surface roughness are deteriorated;
      Affect the uniformity of the self-sharpening of the grinding wheel, so that the grinding wheel for stainless steel wears unevenly.

    • juniperqq has written a new blog article "The development history of resin grinding wheel technology" 11.05.2018

        Everything is constantly evolving, even human beings are no exception, let alone other equipment or instruments, tools, resin long life grinding wheel are important grinding and cutting tools in the manufacturing industry, of course, step by step development, Today is to say how the automatic molding technology of China long life grinding wheel has developed!

        As early as the early 1980s, people in the industry explored and tried on the technology of long life grinding wheel. At that time, an automatic forming press was imported from abroad. This machine is quite compact in design, and it differs from ordinary presses in that it has an additional feed system.

        The working principle of the long life grinding wheel is: put the mixture into the upper hopper, shake it, drop it on the conveyor belt, scrape it with a squeegee, then adjust the conveying speed, and finally send the material to the weighing hopper, after weighing accurately The material is put into the mold cavity.

        The design principle seems to be quite effective in increasing production efficiency. But there is a practical problem that no matter how it is adjusted, it will never reach the ideal level of design. Because the thin long life grinding wheel is not like smelting corundum and silicon carbide, the error of the raw material can't be too large. It is not an easy task to weigh accurately through the conveyor belt. Repeated adjustment can not only improve efficiency but also waste a lot of time. Nowadays, a compromise is adapted to bypass the more difficult feed system, artificial feed, multi-station press, labor intensity reduction, and production efficiency.

        The ideal feed system needs to be improved and developed. Once this technology is mastered, it will enable the production of thin-plate long life grinding wheels as efficiently and quickly as the production of coated abrasives. It will fully realize mechanization and automation, bringing about tremendous changes in the sheet market.

    • juniperqq has written a new blog article "Precautions when using diamond grinding wheel" 11.03.2018

      1, positive operation problems
        In daily use, many operators are always accustomed to working on a fast grinding wheel for stainless steel 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 fast grinding wheel for stainless steel to avoid the grinding wheel flying out or the grinding wheel breaking out and injuring people when the grinding wheel fails.
      2, side grinding problem
        In the daily use of diamond grinders, 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 at random. This is a serious violation of the safety operation rules. Operational behavior. According to the regulations, the fast grinding wheel for stainless steel with the circumferential surface as the working surface should not be grounded. The radial strength of the grinding wheel is large and the axial strength is very small. When the operator is too strong, the fast grinding wheel for stainless steel will be broken and even hurt. In practice, This behavior should be prohibited during use.
      3, joint operation problems
        In the actual daily operation, there are also such situations. Some people share a grinder and operate at the same time in order to catch up with the production task and grab the working time. This is a serious illegal operation and should be strictly prohibited. When a grinder is not enough, it can be solved by adding a grinder. It is not allowed to share a grinder at the same time.
      4, hard operation problems
        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 has a certain strength, which is likely to cause the fast grinding wheel for stainless steel to break, or even fly out and hurt people, it is also a behavior that should be prohibited.

    • juniperqq has written a new blog article "How To Transport China Long Life Grinding Wheel?" 11.02.2018

        In the actual work, we can often see that the workers who carry China long life grinding wheel in a short distance do not take any protective measures, just rolling the grinding wheel directly on the road and pushing the grinding wheel with the solid wheel. It is a disregard for the transportation and storage regulations of China long life grinding wheel, and it is extremely irresponsible for the operator's personal safety. It has laid a huge safety accident hazard for the next operation.

        Next, let's look at the introduction of the correct transportation method and transportation method:

      (1) Long-distance transportation: Adding long-distance transportation and handling, China long life grinding wheel should be completely protected and packaged, and the grinding wheel can be fully filled with soft materials that have no significant impact on the environment to prevent vibration during handling. Impact effect.
      (2) Short-distance transportation: The following is divided into 3 small points to explain
        a. Prevent China long life grinding wheel from falling or being hit by impacts and impacts during handling;
        b. When rolling must be carried, place a cushion of wood, rubber or straw bag on the ground and gently roll it on it;
        c. Especially heavy China long life grinding wheels should be transported with special handling tools. The tools used should be equipped with soft material gaskets. Vehicles should be equipped with inflatable tires. It is strictly forbidden to use solid wheel tool carts for handling.

    • juniperqq has written a new blog article "Selection and use of diamond wheel binder" 11.01.2018

         The binder is a diamond particle consolidation material on the surface of 4.5 inches grinding wheel. The effect of the binder on tool life and processing capacity. Therefore, a reasonable choice of binder is important to improve efficiency and surface quality of the part. At present, there are four types at home and abroad: resin binder, a ceramic binder of the binder, metal bond, electroplating C } 70. Because of the higher the spindle speed of high-precision CNC machine tools, the surface quality of optical materials is also guaranteed, so bronze The choice of the metal bond is used as the binder material.

         Although there are some shortcomings in the use of bronze binders, measures can be taken to solve them. When the self-sharpness is worse or no longer has the milling ability, the diamond 4.5 inches grinding wheel can be put into the strong acid salt for treatment, the processing time is 10 min^}15 min, and the treated diamond 4.5 inches grinding wheel can be used continuously. During the grinding process, the position of the coolant nozzle is adjusted, so that a large amount of coolant flows through the processing area, and the heat is quickly taken away, thereby causing the temperature of the processing zone to decrease.

    • juniperqq has written a new blog article "Environmental requirements for ultra-fine abrasives" 10.31.2018

        The classification of China abrasive tools for metal is particularly important in the production process, and it is even possible to set up separate workshops or areas for separate production, thus largely avoiding the confusion of different particle sizes of abrasives. Also easy to overlook is room temperature. Micro-powder grade grinders are very sensitive to changes in temperature. Usually, there are more than ten degrees of temperature difference between day and night, and the temperature difference between winter and summer is 20 or 30 degrees. Such a large temperature difference has a great influence on the quality of abrasive grinding disc tools. Therefore, precise control and control of temperature is also an indispensable link.

        The working environment has a great influence on the production of micro-powder grade abrasives, which is easily overlooked. In the production process, always maintain a clean and tidy working environment. In the production process, once the course and fine grain size abrasives of different particle sizes are confused, it is difficult for the naked eye to detect. However, in the process of using the processed workpiece, the scratching of the workpiece may occur, and the abrasive article and the workpiece to be processed may be scrapped. Therefore, clean up at any time, keep the working environment, China abrasive tools for metal and equipment clean and tidy, and specialize in special planes.

    • juniperqq has written a new blog article "Classification of diamond wheels" 10.30.2018

         Diamond China high efficient grinding disc can be divided into resin bond diamond grinding wheel; ceramic bond diamond grinding wheel; metal bond diamond grinding wheel (bronze bond diamond grinding wheel); electroplating bond diamond grinding wheel.

         According to the production process, the diamond China high efficient grinding disc can be divided into the sintered diamond wheel (resin bond diamond wheel; ceramic bond diamond wheel; metal bond diamond wheel); electroplated diamond wheel; brazed diamond wheel.

         According to the grinding method, the diamond grinding wheel can be divided into diamond grinding wheel for grinding diamond; diamond grinding wheel for grinding hard alloy (diamond grinding wheel); diamond China high efficient grinding disc for grinding diamond composite piece; centerless grinding diamond wheel for coreless grinding machine; grinding ceramic product Diamond grinding wheel; diamond grinding wheel for cutting (also known as diamond cutting piece); diamond saw blade.

         According to the appearance or shape, the diamond China high efficient grinding disc can be divided into parallel grinding wheel; cylindrical grinding wheel; cup-shaped grinding wheel; bowl-shaped grinding wheel; dish-shaped grinding wheel; edging grinding wheel; beveling wheel grinding disc.

    • juniperqq has written a new blog article "Grinding temperature of the different grinding wheel" 10.29.2018

      The types of China long life grinding wheels are different, and the cutting properties, anti-adhesive wear resistance and thermophysical properties of the abrasive grains are very different. Therefore, when different types of grinding wheels grind ultra-high-strength steel, the grinding temperature is different.

      Let's talk about the grinding temperature comparison when grinding single crystal corundum and white corundum China long life grinding wheel 300m steel.

      When the single crystal corundum and white corundum China long life grinding wheel grind 300M steel, the grinding temperature is not much different, and the grinding temperature of CBN grinding wheel is much lower than the grinding temperature of corundum grinding wheel.

      Although the grinding speed of CBN grinding wheel is almost twice that of white corundum grinding wheel, the grinding temperature of CBN China long life grinding wheel is about 250 °C lower, which is due to the anti-adhesion and wear resistance of the abrasive grain during the grinding process. It can maintain a sharp cutting edge, has the strong cutting ability, is smaller than grinding energy, and has less friction between the abrasive grains and the workpiece surface, resulting in less grinding heat.

    • juniperqq has written a new blog article "How to install the grinding wheel" 10.26.2018

             Before high quality metal grinding disc is installed, it must be calibrated for its safe speed. Unclear or unmarked grinding wheels must be re-tested. Before installing, tap the grinding wheel with a mallet. If a dumb sound is found, there may be cracks in the grinding wheel and it cannot be used. The flanges on both sides of the grinding wheel must have the same shape, size and so on. The diameter of the flange is half the diameter of high quality metal grinding disc and the groove is required on the inside.

           Between the end face of the grinding wheel and the flange, a piece of elastic cardboard or fur and oil-resistant rubber gasket with a thickness of about 1~2mm should be placed. The diameter of the gasket is slightly larger than the outer diameter of the flange. The flange screws should be tightened symmetrically in order to distribute the clamping force evenly. However, the force should not be too large to avoid fracturing high quality metal grinding disc. After the grinding wheel is installed, it must be statically balanced at least once to be installed on the grinding machine.

    • juniperqq has written a new blog article "Knowledge about wheel handling and storage" 10.25.2018

           180*6*22mm metal grinding disc is widely used in machining applications, so we hereby intensify some knowledge about the handling and storage of grinding wheels. The grinding discs avoid vibration and shock during the process from production to use. The following are the grinding wheels for the first grinding wheel factory. Several points to note about handling and storage:
            The principle of using 180*6*22mm metal grinding disc is the same as that of other products. The principle of keeping the first in, first out, the surface of the grinding wheel with the characteristics of the grinding wheel and the safe speed should not be smeared or damaged at will, so as to avoid confusion.
            180*6*22mm metal grinding disc belongs to large-volume production and cannot be used for current production. Therefore, the grinding wheel that has been produced should not be stored for more than the effective period of the grinding wheel. Some grinding wheels, such as diamond grinding wheels, are made of resin and rubber bonding agent. From the date of leaving the factory, if the storage time exceeds one year, it must be passed after passing the test.
            Finally, 180*6*22mm metal grinding disc cannot be subjected to strong vibration and impact during handling and storage. It is not allowed to roll the grinding wheel during transportation to avoid cracks and surface damage. The storage place of the diamond grinding wheel should be kept dry and the temperature is suitable to avoid mixing with other chemicals. The wheel is damp, low temperature, overheated and attacked by harmful chemicals to reduce the strength.

    • juniperqq has written a new blog article "Do you know the special grinding wheel?" 10.24.2018

            Protection problem The protective cover is the most important protection device of the grinder. Its function is: When 4.5 inches grinding disc is damaged due to work, it can effectively cover the grinding wheel fragments and ensure the safety of personnel. The shape of the wheel guard is round and square, and the maximum opening angle is not allowed to exceed 90°; the material of the shield is steel with a tensile strength of not less than 415 N/mm2. When replacing a new 4.5 inches grinding disc, the protective cover should be installed firmly and reliably, and the protective cover should not be dismantled or discarded.

            Blocking the screen is one of the main protective attachments of the grinder. The opening of the guard above the horizontal plane of the main shaft is greater than or equal to 30 (this device must be provided. Its main function is to block the flying during the grinding process, so as not to hurt The operator is installed at the positive end of the protective cover opening, the width should be larger than the width of 4.5 inches grinding disc guard, and should be firmly fixed to the protective cover. In addition, the clearance between the circumferential surface of the grinding wheel and the baffle should be less than 6mm.

            Bracket problems Brackets are one of the commonly used attachments for grinders. Adjustable brackets must be provided for grinders with a specified 4.5 inches grinding disc diameter of 150 mm or more. The distance between the grinding wheel and the bracket should be less than 1/2 of the minimum shape of the workpiece to be ground, but the maximum should not exceed 3 mm.

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