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add to favorites The application of green cutting disc on the project? Cars 2018-11-18
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What are the common problems in the preparation of the feasibility study statement for the green cutting disc project? The missing side and the missing corner are mostly caused by improper handling of the loading and unloading during transportation. When the furnace is installed, the blank body is exposed outside the hardened mat or the blanks are pressed against each other, and the mat is not obsessed to tilt the blank; the errors in the mixing and forming processes are caused, and the dose of the connecting parts is increased, and the weight is increased. At night, the pressure increases. Various types of operations are used to publicize the main aspects of fire protection work for employees, and to enhance employees' awareness of fire protection. In order to standardize and coordinate various energy management activities, various types of documents should be systematically formulated and strictly implemented.
add to favorites Classification of cutting pieces Cars 2018-11-18
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The cutting piece is a very common grinding tool in the grinding process. It is usually made by adding a binder to the abrasive, and is made by compacting, drying and roasting. The characteristic parameters are mainly abrasive, viscosity, shape, hardness, Bonding agent, size, etc. Because of the difference in abrasives, binders, and manufacturing processes, the resulting cut sheets are also quite different, so abrasives, binders, and manufacturing processes have an important impact on the quality and productivity of the grinding process. Cutting piece According to the abrasive, the cut pieces can be divided into common abrasive (corundum and silicon carbide) cutting sheets, natural abrasive super-hard abrasives and (diamond and cubic cutting sheets, boron nitride, etc.) cutting sheets; According to the shape, the aluminum flat cutting disc can be divided into a flat cutting piece, a cup-shaped cutting piece, a cylindrical cutting piece, a beveled cutting piece, a dish-shaped cutting piece, and the like; According to the bonding agent, the cutting piece can be divided into a metal cutting piece, a rubber cutting piece, a resin cutting piece, a ceramic cutting piece, and the like. The dicing sheet is a sheet made of abrasive and binder resin for cutting ordinary steel, stainless steel metal and non-metal materials. It is mainly made of glass fiber and resin as a reinforcing bonding material, and has high tensile strength, impact resistance and resistance. The characteristics of bending strength are therefore widely used in the production of ordinary steel, stainless steel and non-metal. According to the material, the cutting piece is mainly divided into a fiber resin cutting piece and a diamond cutting piece. The former is made of resin as a bonding agent, and the glass fiber mesh and various materials are combined to realize the cutting of hard materials such as alloy steel and stainless steel. The performance is very remarkable, and the cutting precision is ensured, and the cutting efficiency can be greatly improved. Save production costs. The cutting method is dry and wet. Diamond cutting discs are mainly used for the cutting of hard and brittle materials such as stone, new and old roads, prefabricated panels, concrete, ceramics. It mainly consists of two parts: the base and the cutter head. The base is the main supporting part of the bonding head, and the cutting action is mainly the cutting head. Since the cutting head contains diamond, as the hardest material at present, the diamond can effectively cut the object to be processed. The cutter head will wear out during use, but the base will not.
add to favorites What Is The Purpose Of The Grinding Wheel? Cars 2018-11-18
In recent years, the development of our society has been quite large, and the development is relatively fast. I believe that there is a person who is familiar with the grinding wheel made in China. It is close to a role that is quite large in our life. Then the grinding wheel is made of abrasive and binder resin for ordinary steel. Below, Henan Abrasives Co., Ltd. describes what the grinding wheel cutting piece has. The hardness of the grinding wheel made in China is the main characteristic that determines the performance of the abrasive. The super-hard abrasive itself has a very high hardness, so it can process a variety of high-hardness materials, especially materials that are difficult to process with ordinary abrasives. For example, machining hard alloys and ceramics with diamond abrasives. , agate, optical glass, semiconductor materials, stone, concrete, and other non-metallic materials and non-ferrous metals; with cubic boron nitride abrasive tooling tool steel, die steel, stainless steel, heat-resistant alloys, etc., especially processing high vanadium high-speed steel, etc. The ferrous metal can obtain satisfactory processing results. The grinding temperature of the super-hard grinding wheel made in China is low, which can greatly improve the surface quality of the workpiece to be processed, avoid cracks, burns, tissue changes and other defects of the parts; The stress condition is beneficial to the extension of the service life of the parts, so that the comprehensive economic indicators can be improved. The super-hard grinding wheel made in China has less wear, long service life, and high grinding ratio, and can obtain good economic effects under reasonable use conditions, especially It is a material that is difficult to process with ordinary abrasives, and the economic effect is better. The above content is the information about the use of the grinding wheel made in China by Henan Abrasives Co., Ltd., then Henan Aurora Abrasive Tool Co., LTD. specializes in the development and production of grinding wheels, cutting discs, grinding discs. The company uses abrasive grinding The latest technological achievements with special equipment are the starting point.
add to favorites Introduction to the use of cutting blades Cars 2018-11-18
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Grinding is one of the main processing methods for semi-finishing and finishing. The cutting piece is an important tool in grinding. The resin EN12413 cutting discs is generally installed on a surface grinder, a cylindrical grinder and an internal grinding machine. It can also be installed in Sharpen the tool on the cutting machine. According to different applications, grinding methods and grinding machine types, the cutting sheets are made into various shapes and sizes. Commonly used cutting sheets are flat cutting sheets, cylindrical cutting sheets, double bevel cutting sheets, cup cutting sheets, bowl shapes. Cutting sheets, dish cutting sheets, and the like. Our company produces (cubic boron nitride) CBN/diamond cup grinding wheel, roller, chamfering wheel, (cubic boron nitride) CBN/diamond abrasive for ceramic tile industry; cubic boron nitride for tempered glass industry CBN/diamond flat arc grinding wheel, drill bit; (metal) bronze bond grinding wheel, resin bond grinding wheel, polishing wheel for glass deep processing industry; diamond tool for processing crystal material, magnetic material hard alloy and other materials; Non-standard diamond tools for various requirements as required by other industries. The flat series of cutting blades are widely used. Depending on the size, it can be used for inner circle, outer circle, plane, centerless, tool cutting, slotting and free grinding. The flat arc cutting piece is used for grinding the curved surface of the workpiece such as the wire taper groove and the bearing channel. According to different sizes, the centerless parallel cutting pieces are used for cylindrical grinding, internal grinding, surface grinding, centerless grinding, tool grinding, thread grinding and cutting machine.
add to favorites The bad performance of the sand making machine is not necessarily a problem with performance and quality Cars - Economy cars 2018-11-18
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In the process of using the sand making machine, it often happens that the production effect of the equipment does not meet the customer's expectations. At this time, the first thing that comes to mind is that the quality of the machine is not good or the performance is problematic. In fact, this phenomenon may be due to operation. The problem, here we will analyze the importance of the correct operation of the sand making machine. In the production of sand making machines, low failure, good maintenance, high productivity, easy operation, and excellent finished product quality are important conditions for improving the comprehensive income of production engineering. Can these conditions meet the performance and quality of the selected and selected equipment? There is a relationship between the operation and the operation process. The so-called operation refers to the use of the sand making machine. In this process, the staff will affect the setting of various parameters of the equipment, the screening of the material input, and the lubrication of the equipment. Its performance is illustrated by the following examples. The effect of the operation on the sand making machine: When the sand making machine is used, if the parameter setting is unreasonable, such as the speed setting of the feeding, if it is too fast, it will easily cause the blockage phenomenon. If it is too slow, the device will be idling, whichever will cause efficiency. decline; When the sand making machine is used, the unreasonable maintenance will not only cause the internal parts to be worn out, but also cause the wear to be aggravated. For example, when the lubricating oil is added, it is polluted. When working, the parts will wear out; The operation of the sand making machine includes a lot of content, and any one of these contents has an unreasonable phenomenon, which will lead to poor performance of the equipment, which is why the sand making machine is strictly used according to the instructions. Therefore, when the sand making machine is used, it can't reach the customer's expectation value, not necessarily the equipment problem, it is probably the operation problem. Of course, this does not mean that the performance of the equipment is not important. When the sand making machine is purchased, Still pay attention to performance and quality, and then combine operations to ensure that it has good benefits.
add to favorites 4 inches China grinding disc factory Cars 2018-11-17
4 inches China grinding disc factory describes how to prevent abrasive particles from falling off In the grinding process, the grinding machine basically carries the whole grinding process with a single layer of abrasive. The abrasive grains wear or fall off, and no backup abrasive grains continue to grind, so a limited number of abrasive grains are used for this layer. It is particularly important. How to prevent the shedding of abrasive grains and improve the grinding effect of each particle is an important topic for the research and development of abrasive tools researchers and manufacturers. At present, the following methods are adopted: calcination treatment and alkali treatment. Treatment of coated metal salts. Treatment of coated ceramics. Treatment of coated resin. Treatment with silane. The following 4 inches China grinding disc factory mainly introduces alkali treatment: The abrasive is immersed in a 2% NaOH solution for about 30 minutes, then cleaned and dried. It can be used after drying. The alkali has a certain corrosive ability to the abrasive, thereby increasing the roughness of the abrasive surface and improving the capillary action of the abrasive surface. It is beneficial to the bonding effect between the abrasive and the binder so that the abrasive grains are not easily detached from the surface of the abrasive tool, thereby improving the grinding effect and durability of the abrasive tool. Since the alkali has a certain etching effect on the alumina, this The method is better for the abrasive effect of the corundum series. Everyone wants to know more about 4 inches China grinding disc factory. You can pay attention to Henan Aurora Abrasive Tool Co., Ltd. We specialize in grinding wheel cutting discs, grinding wheel ultra-thin sheets, Henan abrasive grinding equipment special equipment development and production management enterprises.
add to favorites What is the trend of free sample cutting disc? Cars 2018-11-17
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TheTfree sample cutting disc is mainly made of glass fiber and resin as reinforced bonding material. It has high tensile strength, impact resistance and bending strength. It is widely used in the production of ordinary steel, stainless steel metal and non-metal, excellent materials and exquisite craftsmanship. High cutting efficiency and best economic results for workpieces of different materials are guaranteed. So what is the future development trend of free sample cutting disc? Where should I make improvements? First, the hardness of the cutting disc, more and more new metal products in the future, then the hardness requirements of the cutting disc products are also more and more, the hardness of the cutting disc product determines everything of the product, currently, by superhard abrasives High precision and high efficiency grinding results have been widely recognized. Second, the improvement of the physical structure of the abrasive tool, such as increasing the number of abrasive grains acting on the workpiece per unit time, increasing the average length of the grinding, and increasing the grinding contact surface by the cutting disc, all of which change the amount of grinding per unit time. Effectively improve efficiency; the cutting disk that truly enhances product efficiency can truly grasp the future market. With the development of the machinery industry in the future, more and more cutting disc industry is beginning to approach this market. Many companies have begun to update their product technology, hoping to develop more good cutting disc products.
add to favorites Electroplated diamond wheel Hardware - Hard disks 2018-11-17
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The electroplated diamond wheel is a diamond wheel made by electrochemical method. Grinding wheel working layer contains diamond grinding The granules are diamond ground to be bonded to the substrate by a metal bond. First deposit the thickness of the metal bond to the diamond mill 20% of the height of the grain, and then continue to bond (thicken) the diamond abrasive particles with a metal bond, the thickness is about 2/3 of the abrasive grain height. These include diamond dressing wheels, diamond wheels for China cut off disc 1 Principle of electroplated diamond grinding wheel  The diamond is adsorbed in a weakly acidic solution and slowly moves toward the cathode under the action of an electric field, and finally adsorbs on the surface of the cathode.  Thus, when continuously adsorbed on the surface of the cathode, the diamond adsorbed on the surface of the crucible is continuously wrapped to form a diamond composite coating. 2 advantages of electroplated diamond grinding wheel (1) No need to trim, easy to use; (2) It is possible to make various complicated tools with high precision. (3) For roller wheels with higher precision requirements, electroplating is currently the only manufacturing method. (4) The coating is distributed on the substrate and has a uniform thickness, which is not limited by the shape of the substrate. (5) Electroplating method has simple process, convenient molding, can be repaired, short manufacturing cycle, less equipment investment, etc. point;
add to favorites Electroplated diamond wheel Cars 2018-11-17
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The electroplated diamond wheel is a diamond wheel made by electrochemical method. Grinding wheel working layer contains diamond grinding The granules are diamond ground to be bonded to the substrate by a metal bond. First deposit the thickness of the metal bond to the diamond mill 20% of the height of the grain, and then continue to bond (thicken) the diamond abrasive particles with a metal bond, the thickness is about 2/3 of the abrasive grain height. These include diamond dressing wheels, diamond wheels for China cut off disc 1 Principle of electroplated diamond grinding wheel  The diamond is adsorbed in a weakly acidic solution and slowly moves toward the cathode under the action of an electric field, and finally adsorbs on the surface of the cathode.  Thus, when continuously adsorbed on the surface of the cathode, the diamond adsorbed on the surface of the crucible is continuously wrapped to form a diamond composite coating. 2 advantages of electroplated diamond grinding wheel (1) No need to trim, easy to use; (2) It is possible to make various complicated tools with high precision. (3) For roller wheels with higher precision requirements, electroplating is currently the only manufacturing method. (4) The coating is distributed on the substrate and has a uniform thickness, which is not limited by the shape of the substrate. (5) Electroplating method has simple process, convenient molding, can be repaired, short manufacturing cycle, less equipment investment, etc. point;
add to favorites 4 inches China grinding disc factory Hardware - Memory chips 2018-11-17
4 inches China grinding disc factory describes how to prevent abrasive particles from falling off In the grinding process, the grinding machine basically carries the whole grinding process with a single layer of abrasive. The abrasive grains wear or fall off, and no backup abrasive grains continue to grind, so a limited number of abrasive grains are used for this layer. It is particularly important. How to prevent the shedding of abrasive grains and improve the grinding effect of each particle is an important topic for the research and development of abrasive tools researchers and manufacturers. At present, the following methods are adopted: calcination treatment and alkali treatment. Treatment of coated metal salts. Treatment of coated ceramics. Treatment of coated resin. Treatment with silane. The following 4 inches China grinding disc factory mainly introduces alkali treatment: The abrasive is immersed in a 2% NaOH solution for about 30 minutes, then cleaned and dried. It can be used after drying. The alkali has a certain corrosive ability to the abrasive, thereby increasing the roughness of the abrasive surface and improving the capillary action of the abrasive surface. It is beneficial to the bonding effect between the abrasive and the binder so that the abrasive grains are not easily detached from the surface of the abrasive tool, thereby improving the grinding effect and durability of the abrasive tool. Since the alkali has a certain etching effect on the alumina, this The method is better for the abrasive effect of the corundum series. Everyone wants to know more about 4 inches China grinding disc factory. You can pay attention to Henan Aurora Abrasive Tool Co., Ltd. We specialize in grinding wheel cutting discs, grinding wheel ultra-thin sheets, Henan abrasive grinding equipment special equipment development and production management enterprises.
add to favorites The most commonly used wheel binder Hardware 2018-11-16
The most commonly used wheel binders are ceramic binder (V) and resin binder (B).high performance cutting disc Ceramic bond is an inorganic binder with stable chemical properties, heat resistance, good corrosion resistance and porosity. Large, the grinding wheel made of this kind of bonding agent has high grinding efficiency and low wear, and can better maintain the geometry of the grinding wheel. The most widely used. Suitable for grinding ordinary carbon steel, alloy steel, stainless steel, cast iron, hard alloy, non-ferrous metal Wait. However, the porcelain bond grinding wheel is relatively brittle and cannot be subjected to severe vibration. Generally only at 35 meters / 杪 Used inside the speed. The resin binder is an organic binder, and the binder is made of a high-strength wheel with a certain amount of bullets. Sex, low heat resistance, good self-sharpness, easy to manufacture, and short process cycle. Can be manufactured at speeds above 50 m/s The grinding wheel and the very thin flat cutting disc Its application range is second only to ceramic bonding agents, widely used for rough grinding, rough grinding, cutting Broken and free grinding, such as grinding steel ingots, casting burrs and so on. Can manufacture high speed, high-gloss grinding wheels, heavy load, Cutting and grinding wheels of various special requirements.
add to favorites The most commonly used wheel binder Cars 2018-11-16
The most commonly used wheel binders are ceramic binder (V) and resin binder (B).high performance cutting disc Ceramic bond is an inorganic binder with stable chemical properties, heat resistance, good corrosion resistance and porosity. Large, the grinding wheel made of this kind of bonding agent has high grinding efficiency and low wear, and can better maintain the geometry of the grinding wheel. The most widely used. Suitable for grinding ordinary carbon steel, alloy steel, stainless steel, cast iron, hard alloy, non-ferrous metal Wait. However, the porcelain bond grinding wheel is relatively brittle and cannot be subjected to severe vibration. Generally only at 35 meters / 杪 Used inside the speed. The resin binder is an organic binder, and the binder is made of a high-strength wheel with a certain amount of bullets. Sex, low heat resistance, good self-sharpness, easy to manufacture, and short process cycle. Can be manufactured at speeds above 50 m/s The grinding wheel and the very thin flat cutting disc Its application range is second only to ceramic bonding agents, widely used for rough grinding, rough grinding, cutting Broken and free grinding, such as grinding steel ingots, casting burrs and so on. Can manufacture high speed, high-gloss grinding wheels, heavy load, Cutting and grinding wheels of various special requirements.
add to favorites Metal cutting machine operation and maintenance Cars - Economy cars 2018-11-16
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When clamping the cutting piece, it is necessary to select a suitable and safe clamping method according to the material type. The low price disc for metal must be horizontally perpendicular to the cutting line of the tool, and must be fastened and secured. The long material must be fastened with a special bracket. When starting the cutting, it is necessary to observe whether the incision is skewed, and it is necessary to stop immediately when the deflection is found to prevent the cutter or the cutting piece from being twisted and broken. When working, the operator must stand on the side of the cutting direction of the cutter and the aluminum abrasive cutting disc to prevent the cutter, the cutting piece and the chip from colliding and injuring people, and must be away from the rotating part and the stroke range of the ram. The cutting blade cutting knife must be slowly and evenly speeded, and the force should be evenly applied. It is strictly forbidden to cut soft materials on the cutting blade cutting machine. When clamping large cutting blades, the crane should be operated correctly, the cutting piece should be hung firmly, the command should be clear, and the obstacles should be checked carefully on the worktable. The bottom of the cutting piece should not be supported by hand. Slow speed is used when falling, and it is not allowed to produce on the machine tool. Shock. Only after correct positioning and reliable fastening can the processing be carried out. After processing, it must be determined that there is no lifting obstacle before the cutting piece can be hung. When loading and unloading the cutting piece, it is necessary to stop and then load and unload the cutting disc for stainless steel. It is strictly forbidden to clean the chips by hand during processing, and special tools must be used. When there is too much accumulation of chips, it should be stopped and cleaned up in time. The cooling fluid flow rate of the cutting fluid should be adjusted properly, and the cooling part should be reasonable, and splashing is not allowed during processing. The metamorphic cutting fluid should be cleaned and collected in time, and sent to the unit to collect the spot. It is strictly forbidden to dump. When the machine tool malfunctions or has abnormal noise, it should be stopped and inspected and processed in time. When it is unable to process, report it to the maintenance personnel in time, and fill in the daily maintenance records of the equipment and record when the platform is stopped. All electrical faults are strictly prohibited from handling by the operator. At the end of processing or after work, the equipment should be cleaned according to the maintenance requirements of the equipment at the end of the shift, and the equipment should be thoroughly wiped. Maintenance content: Thoroughly clean the dirt; wipe the device thoroughly.
add to favorites Metal cutting machine operating procedures and maintenance Cars 2018-11-16
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Metal cutting machine safety operation procedures 1 Scope of application This procedure is applicable to the bow saw machine, the 5 inch resin cutting disc for metal cutting machine, the wire cutting machine, the metal circular sawing machine, the metal band saw machine and the like. 2 Safe operating procedure 2.1 The operator must be familiar with the basic knowledge and usage of the machine's structure, performance, operating system, transmission system, guards, lubrication parts, and electrical. 2.2 Wear protective equipment as required before the machine is operated. Female workers must press their hair into the work cap. Do not wear gloves, scarfs or aprons. 2.3 Before driving, check the position of each handle, each transmission part and the protective cover, the limit device should be firm and reliable, whether the tool is firm and reliable, whether the cutting fluid meets the requirements, and the electrical protection is connected to zero. After the inspection, the lubrication and refueling before the shift are carried out according to the parts and oil quantity specified in the lubrication diagram of this machine. 2.4 After inspection and refueling, the operator drives at low speed for 3~5 minutes to check whether the machine is running abnormally, the lubrication of each part, the position of the lubricating oil, whether the joystick is flexible, whether the reciprocating mechanism is normal and reliable, whether the mechanical and electrical limit is Reliable, cracks in the tool and cutting blade. Cutting blades that have been placed for more than one month must be replaced before cutting. 2.5 The spirit of the processing operation should be concentrated, and it is strictly forbidden to talk to others. It is strictly forbidden to leave the post when the knife is automatically taken; it is strictly forbidden to use the side of the aluminum flat cutting disc to grind the burr; it is not allowed to use the standard; the mechanical and electrical limit is not allowed to be removed at will; the extra items are not allowed to be placed on the workbench; Handling with rope or wire tie handles is not allowed. It must be stopped when leaving the machine and should be turned off for a long time. 2.6 The tool holder is flat, firm and reliable, and can be checked for looseness at any time. 2.7 Before the machining, it is necessary to empty the test run to confirm that the reciprocating stroke limit is correct before processing.
add to favorites Cutting and cutting machine use and maintenance instructions Cars 2018-11-16
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Check before boot: 1. Check if the fasteners are loose or not, and if necessary, fix them. 2. Focus on checking whether the resin EN12413 cutting discs has cracks. If it is, it should be replaced immediately. Inspection method: Tap the cutting piece with a wooden stick to make a crisp sound. 3. Move the cutting piece by hand to observe whether the cutting piece rotates flexibly and briskly, and listen carefully for the sound of rubbing. 4. Check if the direction of rotation of the cutting piece is correct. The grinding debris flies downward from the cutting piece in the correct direction. 5. Start the power supply. If the vibration and noise are abnormal, stop it immediately and hang it up, and let the maintenance worker overhaul. 6) Check that the gap between the outer circle of the cutting piece and the workpiece carrier should be ≤ 3mm. 7. Check if the grounding of the cutting machine is intact. Operational requirements: 1. Operators must wear safety glasses and anti-splash masks. 2. The body should be kept at an appropriate distance from the abrasive tool. 3. Start the power supply and start the grinding work when the cutting piece runs smoothly. 4. It is strictly forbidden to violently impact the workpiece with the cutting piece. Pressure should be applied gradually during grinding to prevent the cutting piece from being impacted and to prevent the cutting piece from bursting. 5. The end of the work grinding should be kept at 20 mm or more from the hand end. 6. The amount of grinding should be appropriate for each grinding to prevent accidents caused by the workpiece running with the cutting piece. 7. When grinding for a long time, cold water should be provided next to the cutting machine to prevent heat and burns when the workpiece is ground. 8. Steel parts with strong fractures cannot be ground on the cutting piece to prevent the workpiece from rupturing. 9. The workpiece should not be ground perpendicular to the upper plane of the cutting piece, that is, the workpiece cannot be polished on the side of the cutting piece. 10. Grinding workpieces should be less than 500 mm in length. For workpieces over 500 mm, other grinding tools, such as angle grinders, should be used for grinding. 11. In the cutting machine used, the difference between the diameters of the two cutting pieces is not more than 20%. 12. Turn off the power immediately after each work is completed. other request: 1. In addition to replacing the cutting piece and repairing and dismantling, the cutting machine protective cover is strictly prohibited to be removed to ensure safety. 2. When the diameter of the cutting piece is worn off by two-thirds, the new cutting piece should be replaced. The cutting piece should be balanced during installation. The soft gasket device between the cutting piece and the receiving plate should be tightly attached. The nut should not be tightened too much to prevent the resin EN12413 cutting discs from being broken. Finally, the protective cover must be installed. 3, bearing grease, generally lubricated with molybdenum disulfide grease, once every six months, once a year for inspection, the cutting machine should be completely dismantled, remove internal dust and oil, clean or replace the bearing, Replace the grease. After disassembly and repair, the cutting machine still needs to check whether the operation is light, whether the bearing runs with no abnormal sound, whether the coil is short-circuited, and finally the no-load operation is about 30 minutes. 4. Before use, measure the insulation resistance with a multimeter, the value is ≥ 2 megohms.
add to favorites Do not know how to make high precision and low roughness? Cars - Economy cars 2018-11-16
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Grinding principle The research content of the grinding principle mainly includes the grinding debris formation process, grinding force and grinding power, grinding heat and grinding temperature, grinding precision and surface quality, grinding efficiency, etc., in order to understand the essence of grinding, And to improve or create grinding methods. During the formation of the grinding debris, the spacing and height of the abrasive grains arranged on the grinding tool are randomly distributed. The abrasive particles are a polyhedron, and each of the corners can be regarded as a flat cutting disc on sale with a tip angle of approximately 90° to 120°. The tip is an arc of a radius of a few microns to a few tens of microns. Finely ground abrasives have tiny cutting edges on the surface of the abrasive particles called microedges. The abrasive grains have a large negative rake angle during grinding, and the average value is about -60°. The cutting process of the abrasive particles can be divided into three stages. Slip phase: The abrasive particles begin to squeeze into the workpiece, and the surface of the workpiece is elastically deformed without chips. Plough stage: the abrasive squeezing depth is increased, the workpiece is plastically deformed, the plough is grooved, the granules are bulged on both sides and the front end; the cutting stage: the plunging depth continues to increase, and the temperature reaches or exceeds the criticality of the workpiece material. At the temperature, part of the workpiece material slips significantly along the shear plane to form wear debris. Depending on the conditions, the three stages of the abrasive cutting process may exist in part or in part. The shape of the grinding chips is banded, squashed and fused. It can be used to analyze the influence of various main process parameters, 14 inches cutting disc characteristics, cooling lubrication conditions and abrasive properties on the grinding process. Measures for surface quality and grinding efficiency.
add to favorites The performance of the cutting piece after fine and fine dressing Cars 2018-11-16
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In order to achieve a surface roughness of Ra0.02--0.04 μm for the ground workpiece, the following two methods are used to finely and finely cut the cut piece twice. It is very difficult to grind out Ra0.02--0.2μm by refining with a diamond pen and then using a cutting wheel to fine-tune the wheel after finishing the car. However, if it is refined with a diamond pen and then repaired with a cutting disc for stainless steel after finishing the car, this requirement can be fully achieved. The TL60#ZR1--ZR2 cutting piece can be used for fine repair, and the diameter is about φ100mm. First clamp the cutting piece on a mandrel and then finish the outer circle on a precision lathe to eliminate the yaw. After that, the surface grinding machine is used to finely cut the cutting piece, that is, the cutting wheel is used to finely sand the office wheel. When the cutting piece is trimmed, the head frame is rotated, and the rotation speed is low. The Ministry of Economy and Trade is 80--100r/min, the feeding time is small, the reciprocating economic and trade department is 0.002mm, and the reciprocating speed of the table is less than 0.3m/ Min, it needs to be reciprocated several times. The trimming cutting piece and the trimmed aluminum abrasive cutting disc rotate in the same direction, that is, the line speeds of the contact points of the two are opposite. The coolant should be sufficient to flush the floating sand to prevent the surface of the workpiece from floating on the sand during the grinding process. After the cutting piece is finely and finely trimmed, more contour micro-blades can be trimmed on the abrasive grains of the cutting piece. After the cutting piece is finished, the sand particles on the surface of the trimmed cutting piece are removed by a brush. The coolant should be rigorously filtered before grinding. When grinding, the coolant should be sufficient to prevent burns on the surface of the workpiece. Adjust the gap between the main shaft of the cutting blade and the bearing bush Coloring and bearing bushing on the spindle diameter of the cutting piece, scraping the bearing surface of the bearing pad with a scraper, the contact spot should reach the point of 12--14 points (25×25) mm, and then the installation adjustment will be carried out to cut the spindle of the cutting piece. The clearance of the bearing bush is adjusted to 0.0025--0.005mm. In this way, the drawback of the occurrence of ridges in the workpiece during grinding can be overcome. Balance cutting blade spindle motor and cutting piece Since the vibration of the spindle motor of the low price disc for metal has a great influence on the surface roughness of the workpiece, the spindle motor of the cutting piece needs to be balanced, and the cutting piece should be balanced twice; after the cutting piece is trimmed with a diamond pen, a rough balance is performed, and then the stone is used or After the roughing, the cutting piece is finely trimmed to make a fine balance.
add to favorites What is the free sample cutting disc drive idling? Cars 2018-11-16
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Now with the development of cutting discs, more and more users are now using cutting discs, but some new users are not very familiar with cutting discs when using cutting discs, and always encounter some problems, such as what isTfree sample cutting disc and 115*1*22 cutting disc . The disk drive is idling? Let me explain it to you today. The free sample cutting disc is idling for one minute when it is used in the cutting table. There are two main factors in the process of cracking. One is that the cutting piece is inferior and the product itself does not reach the cutting line speed. In addition, the cutting piece aperture and the cutting table shaft are not equipped, and there is a large stress during assembly. The cutting disc is normal when it is used, and the grinding wheel is broken when the cutting is performed in the normal 1/3 state. The analysis may be due to the following reasons: the flatness of the cut piece, the unevenness of the cut piece, the high hardness of the cut piece, and the lack of toughness of the cut piece resin. Therefore, when users are using, be sure to avoid these problems.
add to favorites Influence of Grinding Machine Accuracy on Machining Accuracy of Cutting Pieces Cars 2018-11-16
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The geometric accuracy, stiffness, thermal deformation, motion stability and vibration resistance of the grinding machine will directly affect the machining accuracy of the workpiece. The geometric accuracy of the grinding machine refers to the motion accuracy and mutual positional accuracy of each component without being subjected to load. It is impossible to make the machine tool absolutely accurate, and there is always an inevitable more or less error. This kind of error will be reflected in the workpiece to different extents during the machining of the workpiece, which will affect the machining accuracy of the workpiece. Generally, there are radial runout and axial sway of the main shaft, straightness of movement of moving parts such as worktable, the mutual position error of working parts and transmission error. The radial runout and axial sway of the spindle of the flat abrasive cutting disc and the movement error of the grinding head frame not only affect the surface roughness of the workpiece after grinding but also cause roundness and end face runout of the workpiece, resulting in uneven spark during grinding. When the table moves not perpendicular to the vertical surface, the inner and outer cylindrical grinding machines affect the linearity of the workpiece busbar, and the plane is ground in the surface grinder, resulting in a large flatness error of the workpiece. The center line of the spindle shaft of the cutting wheel of the cylindrical grinding machine and the center line of the shaft of the internal grinding machine cutting blade is not equal to the center line of the shaft of the workpiece head frame. When the inner and outer cones are ground, the workpiece bus bar is hyperbolic. The center line of the spindle shaft of the resin EN12413 cutting discs is not parallel to the moving direction of the table, which affects the straightness of the end face of the workpiece after grinding. The transmission error of the grinding machine has a great influence on the machining accuracy of thread grinding and gear grinding. The rigidity of the grinding machine. It refers to the ability of the parts to resist deformation when subjected to external forces (grinding forces). That is, in the case of the same grinding force, the smaller the deformation of the component, the greater the stiffness. On the contrary, the deformation of the component is large, indicating that the rigidity of the component is small. The magnitude of these deformations destroys the original geometric accuracy of the static state of the grinding machine and will cause the machining error of the workpiece. Therefore, the machine tool with good rigidity has high processing precision. Thermal deformation. The heat source inside the grinding machine is unevenly distributed, and the heat generated in each part is different. The external heat source has different effects on various parts of the machine tool. The thermal expansion coefficient of the parts is different due to different materials, which causes different parts of the machine tool. The slight deformation causes the original geometric accuracy of the machine tool to decrease, which affects the machining accuracy of the workpiece. Therefore, the precision grinding machine is preferably installed in a constant temperature chamber to prevent temperature changes from affecting the accuracy of the machine tool and the workpiece. Grinding parts of the grinding machine crawl. When the moving parts such as the grinding table and the cutting frame are continuously fed at a low cycle or at a low speed, the movement is uneven, which is commonly called crawling. When this phenomenon occurs in the grinding machine, the feeding during the grinding process is uneven, which affects the surface roughness of the workpiece. > The cutting-edge CNC technology content is wonderful and worthy of attention. The vibration of the grinding machine. The grinding machine generates vibration during the grinding process, causing the relative position of the cutting piece and the workpiece to periodically change, causing vibration marks on the surface of the workpiece, which seriously affects the processing quality and precision. In order to improve the accuracy of the workpiece after grinding, in addition to efforts to eliminate the influence of the above factors, we must also pay attention to the reasonable selection of the positioning reference during the processing of the workpiece, the clamping method, the selection and correct repair of the cutting piece, the reasonable selection of grinding amount and process method.
add to favorites The development speed of the sand making machine market Cars - Economy cars 2018-11-16
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In the industrial market, the high requirements for sand and gravel aggregates in the construction field make the ultra-fine grinding equipment in the mining equipment sand washing machine equipment, anti-collector crusher, cone crusher, sand making machine and other stone production. Equipment demand is gradually increasing. The sand making machine has unique advantages in artificial sand making and stone shaping. ZENITH is a reputable manufacturer of mining equipment such as grinding machine for magnetic separators in the Central Plains. It has always been the core of the economic development of the domestic machinery industry, especially the stone washing equipment industry. The regulations and development proposals have also brought development momentum to the Central Plains economy. Since the new sand making machines were put on the market, they have developed rapidly in the construction field. The sand making effect is obvious, which not only makes up for the lack of natural sandstone market shortage, but also provides high quality sand and gravel aggregate for the construction field. The sand making machine is an economic basic industry, and its economic foundation has also developed rapidly. There are also good conditions for the construction of the Central Plains Economic Zone. ZENITH mining equipment is the leader in the domestic mining market. The experienced expert team and professional manufacturing personnel have created the most excellent new sand making machine, sand making production line and other mining equipment in the sand making machine market. It is the inevitable result of the new and old users. select. Ultra-fine grinding ultra-fine grinding machine centrifugal ultra-fine grinding machine strong pressure grinding machine