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Hebei Province Laser Research Institute technicians in the CVD diamond production laboratory inspection operating system on the morning of December 3, Hebei Province Laser Research Institute, another batch of high-quality CVD (chemical vapor deposition) diamond tool products shipped to the United States on schedule, marking the institute The 2017 product orders for the US market were all completed. In recent years, the Laser Research Institute of Hebei Province has vigorously promoted the research and development of CVD diamond materials, and the advantages of industrialized preparation technology have become increasingly prominent. At present, it has become one of the few manufacturers in the world that can produce high-grade CVD diamonds, and has entered the industrialized express train. Road. "Now focus on the development of 150 mm diameter diamond thick film preparation technology. The deposition of 150 mm diameter diamond thick film can expand the application field and improve production efficiency." Wang Shusheng, deputy director of the Hebei Laser Research Institute, told the Journal of Chinese Academy of Sciences Up to now, the diamond-related projects of the Laser Research Institute of Hebei Province have undertaken nearly 20 national, provincial and ministerial-level scientific research projects, and won 7 provincial-level scientific and technological progress awards. The Hebei Laser Research Institute is affiliated to the Hebei Academy of Sciences. In 1992, the institute began to participate in the research and development of CVD diamond. In 1995, it was supported by the national “863†project for the first time. At the beginning of the second year, it passed the acceptance. The acceptance team believed that: “The successful development of high-power DC plasma jet CVD equipment The Hebei Laser Research Institute became the third unit to independently develop such equipment after the two companies in the United States. It not only provides an alternative industrial preparation technology for diamond film tools and heat sink applications, but also works for diamonds in China. The optical application of the film laid the foundation for the equipment.†It is reported that the project has been supported by the national “863†program twice in succession. According to Wang Shusheng, DCArc-CVD technology has high deposition quality and fastest growth rate in all methods of preparing CVD diamond, which has gradually established its leading position in the domestic industrial preparation technology. At the same time, they are the first in the world to introduce transparent mechanical grade CVD diamond, which has attracted wide attention in the European and American markets due to its high cost performance, and quickly achieved global leading market share. In recent years, with the improvement of the diamond preparation technology, the diamond membrane area has increased, the production efficiency has increased, and the cost performance has increased, which has prompted the multinational company E6 and the US company SP3 to withdraw from the market of thick film tool products. “Our self-prepared diamond film material has been awarded the new technical requirements by the Shanghai Institute of Applied Physics after the first successful bid for the X-ray fluorescence target detector in the front-end area of ​​the Shanghai Light Source Project (National Science Project). The requirements of various technical indicators have completely replaced the products of international multinational company E6.†Li Hongbo, deputy director of the Science and Technology Industry Development Department of Hebei Academy of Sciences, said that the typical application and technical services of CVD diamond include: a tool mainly used for precision machining. Grade diamond film, such as dresser blanks, wear parts, tool blanks. Among them, high-performance diamond blanks exported from abroad are used to manufacture high-precision dressing rollers, and precision grinding of grinding wheels of various complex shapes for fully automatic grinding machines. The processing field involves large-scale wind power generation devices in aerospace and new energy. The thermal grade diamond film used for heat dissipation is an excellent heat-dissipating material for high-power LEDs. It has been successfully used as a fluorescent target in the national large-scale scientific engineering - Shanghai Light Source, completely replacing imported products. The optical grade diamond film, which is an optical window, is mainly used in high-power laser windows, high-speed aircraft window materials, and the like.
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