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Development Status and Problems of Diamond Tools in China

August 22, 2018

Development status Diamond Tools are widely used in various fields such as geological exploration, stone, machinery, automobile and defense industries. The manufacturing level of abrasive tools, geological drill bits and stone sawing tools for machining has been greatly improved. The products have been serialized and standardized, with complete varieties and specifications, stable product quality, and some products have certain competitiveness in the international market.
The vast majority of diamond single crystals are used to make a variety of diamond tools, many of which are available. The diamond sawing tools produced in China have complete specifications and stable quality. According to statistics, in recent years, the market demand for diamond drilling tools is about 12 to 150,000, which basically meets the market demand. With the development of the construction industry and the popularity of household air conditioners, it is used for pipeline installation and air conditioner installation. The renovation of old buildings and the demand for diamond thin-wall engineering drills for construction are also increasing. The demand for PDC bits for oil and coal field exploration has also increased accordingly. The quality of diamond composite sheets produced in China is still not enough. Further research and improvement, continuously improve product quality, and change the current situation of PDC bit dependence on imports. In the machining process, Diamond Grinding Wheel, PCD tool cutter, honing stone, dressing roller, wire drawing die, etc. are widely used: the resin bond diamond grinding wheel is used in a large amount, the annual output is about 1 million pieces; the diamond polycrystalline wire drawing die The performance is better than natural diamond mold and cemented carbide mold, so it is widely used in the drawing industry, especially the appearance of CVD diamond drawing die, which provides a reliable drawing tool for controlling wires below 15mm. PCD Tools are mainly used for the processing of non-ferrous metals and non-metallic materials. It is reported that the demand for PCD tools in the industries of automobiles, motorcycles, household appliances, wood processing and general machinery has increased year by year. According to statistics, until 1997 The demand has reached 26,000, especially in wood processing, the potential market for PCD tools is large, and we need further development. The diamond dressing roller is a high-tech product with high technical content. In 1997, the amount of diamond roller used in China was 3,000. It is expected that the demand for this year is expected to reach 4,500.
Problems Existing Although various diamond tools produced in China have been widely used in various industries and have achieved remarkable economic benefits, their technical level is still different from that of similar foreign products, mainly in:
The entire diamond tool industry lacks unified management and macro regulation. Due to the blind development, the layout of the entire diamond tool production has been scattered and scattered everywhere. The quality of the products in the tool sales market is unstable, the competition is disorderly, and the price is chaotic.
Due to the uncoordinated development of diamond single crystal production and diamond tool production, the development of diamond tools in China lags behind the growth rate of diamond single crystal production, resulting in diamond backlog and slow sales, affecting and restricting the sustainable development of China's diamond industry, making diamond production The economic benefits of enterprises have fallen seriously.
The application field of diamond tools is narrow, the product variety is single, the quality is unstable, and some product technical quality standards are more confusing. There is no uniform product quality inspection and supervision management norms and standards.
Diamond tool production equipment and overall technical level are relatively backward, and some advanced new technologies and new technologies are applied slowly.
The scale of production enterprises is generally small, production is not concentrated, process technology is poor, market competitiveness is lacking, and economic benefits are not high.
Insufficient capital investment in diamond tool production, new product development, and process technology research.
In the use of diamond tools, the use rate of the base material is low, and the steel is seriously wasted; during the use, abnormal wear, falling off, and more residual diamonds make the actual utilization rate of the diamond lower, and the diamond material is wasted more.
Measures to ensure the stable and sustainable development of China's diamond industry Vigorously develop the diamond tool industry, pay close attention to the development of new products and new processes, broaden the application of diamonds, accelerate the development of China's diamond industry, and improve economic efficiency and overall technical level. The specific approach is:
Increase investment in the diamond tool industry, expand the production scale of diamond tools, appropriately introduce foreign advanced production equipment and testing instruments, and strengthen the overall strength of China's diamond tool industry. The development of the diamond industry should adhere to the principle of simultaneous development of diamond single crystal and diamond tools. Don't just ignore the development of single crystals and ignore the development of diamond tools. Only the development of diamond tools can drive and promote the production of diamond single crystals and the entire diamond industry. Development and progress. From the perspective of domestic diamond tool manufacturers, there are few diamond tool manufacturers with annual sales income exceeding 10 million yuan, which indicates that the investment in diamond tools is insufficient, which hinders and affects the process of China's diamond industry group production and the entire diamond industry. In order to improve the overall technical level of diamond tool production in China, it is necessary to strengthen the transformation of existing equipment, expand the scale of diamond tool manufacturing enterprises, and appropriately introduce foreign production lines and patented technologies with higher automation.
Pay close attention to the development of new products and the promotion of new technologies and new processes, continuously expand the field of diamond applications, improve the overall technical level and market competitiveness of the diamond tool industry, survive by variety and quality, and seek development with scientific and technological progress.
In order to meet the needs of the domestic and international diamond tool market, it is necessary to speed up the development of new products, improve product quality, increase varieties, and increase production. In recent years, the demand for diamond tools in the processing of machinery, gemstones, medical equipment, wood, glass steel, stone crafts, ceramics and composite non-metallic hard and brittle materials has increased year by year. At present, these products are still dependent on imports, so they must be as soon as possible. Developed a wide range of high quality diamond tools to replace imports. At present, the products to be developed include: PDC drill bit for petroleum drilling, diamond grinding block for stone polishing, engineering thin wall drill bit, diamond honing stone, diamond film coating tool, diamond roller, rubber bond diamond plastic tool, PCD diamond tool , diamond needles, nozzles, diamond heat sinks and triodes and other products. In order to ensure the quality of its products, it is necessary to speed up the promotion of new technologies and new processes, such as vacuum welding technology, EDM technology, diamond uniform technology, diamond rhodium plating technology, metallization bonding technology, laser welding technology.
Strengthen internal management of the enterprise, continuously improve production processes, reduce production costs, and improve economic efficiency.
Strengthen the operation and management of the diamond tool industry, standardize the domestic market, broaden the international market, promote the development of domestic diamond tools, accelerate the integration of China's diamond tool varieties and standards with international standards, and orderly enter the international market and continuously expand export earnings.
Formulate national unified diamond industry standards, establish authoritative diamond tool monitoring institutions, implement product standardization management, and implement strict inspection and monitoring of product quality.
Diamond tool manufacturers should take the road of integration of science, industry and trade, accelerate the process of industrial grouping, participate in the big market, and continuously increase their competitiveness to promote the development of the diamond tool industry and improve economic efficiency.
Establish a sound diamond industry management organization and standards and specifications for the production, technology and management of diamond and its products, and strengthen the macro-control and operation management of the production layout of enterprises.
We will do a good job in the research and manufacture of large-scale ultra-high pressure equipment for diamond synthesis and diamond tool production equipment with high degree of automation. We can introduce some advanced production lines from abroad and improve detection technology to improve product quality.
Grasp the research and application of powder catalyst, continuously improve and improve the diamond synthesis process, develop various new diamond varieties that are in line with market demand, improve the proportion and output of coarse-grain high-strength diamond, reduce the backlog of low-grade diamond, and improve the economy. benefit.
China's diamond industry should take the road of grouping or joint ventures, set up several large enterprise groups, guide the development of the industry, create their own brands, and actively participate in international competition.
Relying on scientific and technological progress, increasing investment in science and technology, updating equipment, paying close attention to research and promotion of new technologies, new processes and new products, and improving the technical level of China's diamond industry.

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