Established in June 1991, Shanghai Zhongyu Industrial Diamond Co., Ltd. is a professional company engaged in the production and export of synthetic diamond and cubic boron nitride grinding wheels. Since 1998, the company has cooperated with Japan's famous professional manufacturer, Ltd., to develop and produce diamond and cubic boron nitride sand of various types of high-grade resin binders, metal binders and ceramic binders. wheel. In addition to OEM products, it also meets the requirements of many high-end customers in China. The resin bond grinding wheel produced by the company has been designated as a designated supplier of grinding wheels for machine tools by the famous Walter machine tools of Schleifring Group and the famous CNC grinding machine companies such as “ANCAâ€.
Our company has long-term cooperation with Japan's "Oriental" company, and has the company's complete set of resin binder diamond and cubic boron nitride grinding wheel production technology. All raw materials are imported from Japan, and the pressing process is carried out in accordance with the Japanese process. The grinding wheel standard is fully in line with the Japanese National Standard (JIS STANDARD), and was designated as the exclusive agent in China by the Japanese “Oriental†and issued the “authorization certificateâ€. The company's products have been successfully sold back to the Japanese market except for exports to the US, Europe and other countries. Our company takes resin binder diamond and cubic boron nitride grinding wheel as the leading products, and plays a big role in the production of various specifications of carbide tools, and meets the different requirements of users.
The company's existing four major categories of products are the resin bond grinding wheel for CNC tool grinding machines, Ф1100 mm double-face diamond and cubic boron nitride grinding discs, special metal bond forming diamond grinding wheels and high-precision molding resin grinding wheels.
(1) Resin bond grinding wheel for CNC tool grinding machine The rapid development of machinery industry and automobile industry puts forward higher requirements on the number of CNC tools and tool accuracy, tool structure, finish, sharpness and service life. At the same time, more and more companies are also aware of the importance and urgency of sharpening tools, so tool sharpening (including re-grinding) is naturally mentioned on the agenda. In tool manufacturing and sharpening, in addition to advanced high-precision machine tools, grinding wheels are an important factor in determining the quality of tool sharpening. The manual grinder used to grind CNC tools often faces many problems. Grinding a tool requires multiple grinders and after many times of clamping, the grinding time is much longer than on CNC machines. As the geometry of the tool is complicated, the grinding time is not greatly increased, and the consistency of the tool size is difficult to guarantee. Therefore, many factories have introduced high-precision CNC tool grinding machines, which not only improve the quality of the sharpening and the processing of the uniform size of the tool, but also save the time and cost of grinding the tool. According to the relevant information, a 4.14 inch × 20 wrong tooth milling cutter was ground. The manual setting time was 10 times, the grinding time was 134 minutes, and the numerical control mode was set to 2 times, and the grinding time was 10 minutes. This fully proves that CNC tool grinding machines are much more efficient than manual grinding. Since the CNC grinding machine does not rely on the skill level of the operator but through a variety of numerical control settings, it is easy to grind the geometry of complex tools. In addition, the manual grinding is carried out in a dry grinding state, and the numerically controlled grinding is actually ground in a sufficient cooling state during the grinding process, so that the cutting edge heat can be prevented, thereby ensuring a higher cutting speed and Longer tool life. According to the relevant information, the cost of grinding tools for CNC grinding machines is calculated as an annual cost of manual grinding of about 1/4, but the quality requirements of grinding wheels for CNC grinding machines are also higher. The various resin bond grinding wheels developed by our company can be used with various CNC grinding machines and can produce high quality CNC tools. In addition to the usual resin grinding wheels, in order to maintain superb grinding force, we have developed a grinding wheel made of ultra-high temperature resin binder with high grinding efficiency and low loss, which is especially suitable for the shovel grinding process of the tool back angle. .
(2) Ф1100mm double-face diamond and cubic boron nitride grinding disc Our company and Japan jointly developed a double-end grinding disc suitable for grinding hard alloy clamping head compressor valves, auto parts and magnetic materials. The diameter of the disc is from Ф305 to Ф1100 mm. The abrasive layer has a ring width of 50-310 mm and an abrasive layer thickness of 3-7 mm, which is suitable for various types of double-face grinding machines. The precision of the workpiece is ≤0.003 mm, the flatness is ≤0.002 mm, and the highest finish of the workpiece can reach Ra0.01.
(3) Special metal bond forming diamond wheel Special metal bond forming diamond wheel When grinding cemented carbide, the grinding wheel can be kept for a long time because it does not easily adhere to the powder generated after grinding of the hard alloy on the surface of the diamond wheel. Sharpness and shape accuracy are best used on fine-sized precision tools. The grinding wheel can be shaped and trimmed by EDM spark discharge method. In order to obtain a high-precision forming surface, when using EDM trimming, the tool electrode must be made of a copper electrode, processed into a trimming electrode with a high-precision lathe, and then processed on an EDM machine. Forming and trimming. The grinding wheel is currently mainly used for the grinding of corrugated milling cutters and tools that require special shaping.
(4) High-precision molding resin grinding wheel With the increasing use of cemented carbide tools, the application of cemented carbide forming tools is increasing. In addition to the need to form the resin grinding wheel and wear resistance, the molding precision of the resin grinding wheel is also higher and higher. In addition to improving the sharpness and wear resistance of the resin grinding wheel, in order to ensure the high precision of the grinding wheel, our company has specially imported a high-precision grinding wheel special molding machine from Japan. The feed rate is 0.002 mm each time, and the finishing precision is up to 0.005 mm, which greatly improves the forming precision and quality of the cemented carbide tool, and expands the variety and use range of the resin-formed diamond wheel.
With the arrival of the new year in 2010, we are full of confidence in domestic and foreign markets. In order to improve the quality and performance of Chinese tools, we will try our best to provide customers with more and better products and provide better services for the development of China's tool industry.
Author: Yu Industrial Diamond Co., Ltd. in Shanghai, chairman and general manager Tian Yu
Our company has long-term cooperation with Japan's "Oriental" company, and has the company's complete set of resin binder diamond and cubic boron nitride grinding wheel production technology. All raw materials are imported from Japan, and the pressing process is carried out in accordance with the Japanese process. The grinding wheel standard is fully in line with the Japanese National Standard (JIS STANDARD), and was designated as the exclusive agent in China by the Japanese “Oriental†and issued the “authorization certificateâ€. The company's products have been successfully sold back to the Japanese market except for exports to the US, Europe and other countries. Our company takes resin binder diamond and cubic boron nitride grinding wheel as the leading products, and plays a big role in the production of various specifications of carbide tools, and meets the different requirements of users.
The company's existing four major categories of products are the resin bond grinding wheel for CNC tool grinding machines, Ф1100 mm double-face diamond and cubic boron nitride grinding discs, special metal bond forming diamond grinding wheels and high-precision molding resin grinding wheels.
(1) Resin bond grinding wheel for CNC tool grinding machine The rapid development of machinery industry and automobile industry puts forward higher requirements on the number of CNC tools and tool accuracy, tool structure, finish, sharpness and service life. At the same time, more and more companies are also aware of the importance and urgency of sharpening tools, so tool sharpening (including re-grinding) is naturally mentioned on the agenda. In tool manufacturing and sharpening, in addition to advanced high-precision machine tools, grinding wheels are an important factor in determining the quality of tool sharpening. The manual grinder used to grind CNC tools often faces many problems. Grinding a tool requires multiple grinders and after many times of clamping, the grinding time is much longer than on CNC machines. As the geometry of the tool is complicated, the grinding time is not greatly increased, and the consistency of the tool size is difficult to guarantee. Therefore, many factories have introduced high-precision CNC tool grinding machines, which not only improve the quality of the sharpening and the processing of the uniform size of the tool, but also save the time and cost of grinding the tool. According to the relevant information, a 4.14 inch × 20 wrong tooth milling cutter was ground. The manual setting time was 10 times, the grinding time was 134 minutes, and the numerical control mode was set to 2 times, and the grinding time was 10 minutes. This fully proves that CNC tool grinding machines are much more efficient than manual grinding. Since the CNC grinding machine does not rely on the skill level of the operator but through a variety of numerical control settings, it is easy to grind the geometry of complex tools. In addition, the manual grinding is carried out in a dry grinding state, and the numerically controlled grinding is actually ground in a sufficient cooling state during the grinding process, so that the cutting edge heat can be prevented, thereby ensuring a higher cutting speed and Longer tool life. According to the relevant information, the cost of grinding tools for CNC grinding machines is calculated as an annual cost of manual grinding of about 1/4, but the quality requirements of grinding wheels for CNC grinding machines are also higher. The various resin bond grinding wheels developed by our company can be used with various CNC grinding machines and can produce high quality CNC tools. In addition to the usual resin grinding wheels, in order to maintain superb grinding force, we have developed a grinding wheel made of ultra-high temperature resin binder with high grinding efficiency and low loss, which is especially suitable for the shovel grinding process of the tool back angle. .
(2) Ф1100mm double-face diamond and cubic boron nitride grinding disc Our company and Japan jointly developed a double-end grinding disc suitable for grinding hard alloy clamping head compressor valves, auto parts and magnetic materials. The diameter of the disc is from Ф305 to Ф1100 mm. The abrasive layer has a ring width of 50-310 mm and an abrasive layer thickness of 3-7 mm, which is suitable for various types of double-face grinding machines. The precision of the workpiece is ≤0.003 mm, the flatness is ≤0.002 mm, and the highest finish of the workpiece can reach Ra0.01.
(3) Special metal bond forming diamond wheel Special metal bond forming diamond wheel When grinding cemented carbide, the grinding wheel can be kept for a long time because it does not easily adhere to the powder generated after grinding of the hard alloy on the surface of the diamond wheel. Sharpness and shape accuracy are best used on fine-sized precision tools. The grinding wheel can be shaped and trimmed by EDM spark discharge method. In order to obtain a high-precision forming surface, when using EDM trimming, the tool electrode must be made of a copper electrode, processed into a trimming electrode with a high-precision lathe, and then processed on an EDM machine. Forming and trimming. The grinding wheel is currently mainly used for the grinding of corrugated milling cutters and tools that require special shaping.
(4) High-precision molding resin grinding wheel With the increasing use of cemented carbide tools, the application of cemented carbide forming tools is increasing. In addition to the need to form the resin grinding wheel and wear resistance, the molding precision of the resin grinding wheel is also higher and higher. In addition to improving the sharpness and wear resistance of the resin grinding wheel, in order to ensure the high precision of the grinding wheel, our company has specially imported a high-precision grinding wheel special molding machine from Japan. The feed rate is 0.002 mm each time, and the finishing precision is up to 0.005 mm, which greatly improves the forming precision and quality of the cemented carbide tool, and expands the variety and use range of the resin-formed diamond wheel.
With the arrival of the new year in 2010, we are full of confidence in domestic and foreign markets. In order to improve the quality and performance of Chinese tools, we will try our best to provide customers with more and better products and provide better services for the development of China's tool industry.
Author: Yu Industrial Diamond Co., Ltd. in Shanghai, chairman and general manager Tian Yu
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