Development of cutting tool coating technology at home and abroad (4)
(2) Insufficient attention paid to the research and development of new technologies. Although the most advanced PVD technology was introduced in the 1980s, PVD technology was still in the early stage of development, and the domestic development space and development speed could not be fully estimated. In addition, physical coating Layer technology is a new technology integrating electronic physics, materials and vacuum control technology. It has high requirements for personnel deployment in research, production and application. Most of the companies that introduce PVD technology focus on production, developers and funds. Insufficient configuration, it is difficult to promote further independent development of process technology, new processes, new technologies still need to be introduced, and the cost of re-introduction is very expensive (such as Balzers equipment upgrade from TiN coating process to TiCN coating process, only hardware transformation The fee is $300,000, which affects the development of new coating technology and equipment. Previous Next LED street lights achieve ultra brightness/luminance; energy-saving over 70%. Special modular design for theLens (independent modules) and high luminous efficacy, high CRI, easy for maintenance.Intelligent and isolated power supply (NS semiconductor and Japan Rubycon capacitor), reliable and stable; automatically reduce current against overheating working temperature Led Street Light Price List,Led Street Light Price,Led Street Lamp Yangzhou Beyond Solar Energy Co.,Ltd. , https://www.ckbsolar.com
(3) Lack of unity, rationality and cooperation in domestic equipment development In the late 1980s, some domestic vacuum equipment manufacturers and research institutes were too optimistic about the PVD tool coating market, and they have increased the development of various PVD coating equipment. However, due to the lack of in-depth understanding of the cutting process and tool coating process, and the cooperation with the tool factory is not enough, most of the coating equipment developed can not meet the requirements of the tool coating process, especially the precision high-speed steel tool coating technology is not up to To the level of mass production. Since most of these equipment can only be used for the coating of twist drills, and the cost of twist drill coating is extremely low, the profit of the corresponding coating equipment is also very low, so after the 1990s, most vacuum equipment manufacturers have developed Directions to other industries (such as decorative coatings, etc.).
(4) The lack of after-sales service has restricted the promotion and application of domestic coating equipment. So far, most domestic coating equipment manufacturers have not been able to provide complete tool coating technology (including pre-treatment process, coating process, post-coating process). , detection technology, coating tool application technology, etc.), this technology incompleteness brings many technical problems to the user's production; in addition, because the equipment manufacturer can not provide long-term technical services, it is difficult to ensure long-term stability of domestic coating equipment. Normal use, which greatly limits the promotion and application of PVD coating equipment.
(5) Unstable coating quality restricts the promotion and application of coating technology. The high cost of imported equipment leads to high coating prices, and the coating cost can even exceed 50% of the tool price. Due to different introduction channels, equipment selection basis Different, the process level of the equipment is quite different, which affects the use effect of the coating tool. Due to the unstable quality of the domestic coating tool, the inspection standard of the coating tool is incomplete, so the coating price is high and the coating is applied in the application field. The unfavorable impression of unstable quality and improved tool performance after coating seriously affects the promotion and application of tool coating technology and rapid development.
(6) The low level of domestic mechanical processing restricts the rapid development of coating technology. In the 1980s, the application of CNC machine tools in China was still very limited, the machining was still at a low level, and the application of high-speed steel tools accounted for all the tools. More than 80% of the cemented carbide tools are still mainly based on welding tools, and the indexable inserts are mainly made of turning tools (usually using CVD coating), and the whole solid carbide end mills, drills, reamers, etc. Less, so the requirements for PVD carbide tool coating are not very urgent, which also affects the further development of coating technology to a certain extent.