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Coating the surface features of new technical features and development trend


Machine allowance after heat treatment and less clean-up work. Current international carbon potential control and monitoring, fabric type diffusion layer control research achievements have been applied to actual production, and on-line dynamic control by computer. 2. PVD, CVD, PCVD technology status and development trend of various vapor deposition is currently the world's leading research institutions and universities compete to carry out the challenging nature of the research topic. At present the technology in information, computers, semiconductors, optical instruments such as industry and electronic components, optoelectronic devices, solar cells, sensors and other manufacturing is widely used in machinery industry, the production of hard wear-resistant coating, corrosion-resistant coating, thermal barrier coatings and solid lubricant coatings, it is also more research and application, in which TiN coated cutting tools and other popularity has caused a revolution in the cutting area. Diamond films, cubic boron nitride thin film is also very hot and has the practical aspects of progress. In different PVD, CVD process, based on the compound through the development and many new techniques and equipment, such as IBAD,[link widoczny dla zalogowanych], PCVD and hollow cathode multi-arc ion plating composite devices, ion implantation and sputtering or evaporation of the oil complex devices, plasma immersion ion implantation devices technology to keep the class to new heights. Compared with foreign development, although these areas of study more, but the levels are quite different, larger gaps in the practical. 3. High-energy plasma coating technology status and development trend of plasma-enhanced electrochemical surface modification technology, is more active in the development of international research, for aluminum, titanium and other materials, dimming the plasma discharge by means of enhanced electrochemical treatment effect, the metal surface to generate dense alumina and other oxide ceramic coating allows the surface of the substrate has a very high-performance, cutting-edge technology of advanced manufacturing technology, machine cutting tool and die industry has very broad application prospects . 4. Diamond film coating technology has excellent physical properties of diamond in the shape of complex tools, dies, drill bits and other deposits on the surface a thin layer of diamond film, the workpiece can improve performance and meet the needs of some special conditions. In recent years, due to the excellent performance of diamond films and a wide range of applications,[link widoczny dla zalogowanych], Japan, the United States and Western Europe are a lot of research and development of a variety of diamond coating technology, has set off a diamond coating of domestic and international craze. Especially in the diamond coating and substrate to improve bonding strength, rapid deposition of large area diamond coating technology, industrial production of diamond film coating equipment, systems and other key technology breakthrough has been made abroad, the United States and Sweden, has launched the Diamond Metal cutting tools supply market, and our technology has not yet reached the practical level, pressing the development and industrialization. 5. Multiple Layer Composite technology status and development trend of the surface coating can not meet a single engineering design in harsh surface of the working conditions, no surface treatment has its advantages and disadvantages of different, because the use of different coating materials, performance benefits, surface of the substrate Multiple Layer Composite (with gradient gradient) is of great significance. Has been carried out abroad, for the nano-layer coating thickness, number of layers in the layer above lOO Multiple Layer Composite technology research, the preparation of the coating has high corrosion resistance, toughness and strength, and the bonding strength Ye Hao, low surface roughness, which direct high-speed precision machining work cut very favorable. Abroad have been included in the main development, the expected fine coating materials in the nano-scale research and applications will be a new breakthrough. Because the composite coating with anti-wear,[link widoczny dla zalogowanych], high temperature oxidation corrosion, insulation and other functions, to expand the use of coated products, extend the service life is a will in the next century, the rapid development of technology. China has begun to study, and achieved preliminary results, but there are still some problems to be solved. 6. Surface modification and coating process simulation and performance prediction of the status and development trend of surface design, performance parameters on the cut surface, to conform to specific requirements,[link widoczny dla zalogowanych], and further to achieve the organizational structure of the surface coatings and performance prediction has become an important research direction in this field. Foreign countries has been on the CVD, PVD, and other surface modification methods to carry out computer simulation study, for CVD process simulation, the use of macro-and micro multi-level models, processes and coating on various performance and the substrate to simulate and predict binding force; on carburizing,[link widoczny dla zalogowanych], nitriding the workpiece permeation layer performance computer simulation of stress, etc., etc., people can better control and optimize the process. Our research in this area is just at its initial stage. (Source: HC Network) 47
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