Red Net Changsha November 9 (Reporter Yu Xiangyang intern Ouyang Wei) This afternoon, Dingli Technology, located in Jinyun Industrial Park, Changsha County, revealed that China's powder metallurgy new materials research and development has made a major breakthrough. The National Science and Technology Support Program - "Water-Soluble Preparation of Nano-Tungsten-Cobalt Composite Powder Key Project Equipment Development and Industrialization Project" passed the acceptance test, which indicates that China's ultra-fine grained carbide high-grade tools rely on imports have been broken.
According to Dai Wei, general manager of Hunan Dingli Technology Co., Ltd., “Nano-tungsten carbide cobalt-cobalt composite powder†is a key material for high-performance cemented carbide and ultra-fine structure surface-strength coating, especially suitable for high speed, high temperature and high pressure. Work under heavy load, corrosive media, etc. Mainly used in the manufacture of high toughness, high wear resistance carbide cutting tools, PCB micro cobalt, high precision grinding tools, micro cutting knives, surgical knives and so on.
According to him, at present, the annual domestic demand for nanocrystalline cemented carbide is more than 2,000 tons. China's high-performance PCB micro-cobalt, automobile manufacturing, precision machining, ultra-fine grained cemented carbide (grain size ≦0.4μm) tool 90 More than % depends on imports. Limited by process technology and key equipment, the traditional method has high production cost, product quality is difficult to control, and scale production cannot be realized, which seriously restricts the improvement of core competitiveness of China's cemented carbide industry.
"This is a major breakthrough in the technical problems of nanomaterials and industrialization in China. It also marks that China's powder metallurgy new materials have become a new step in the production of extremely important equipment, which will break the import of ultra-fine crystal carbide in China. Situation," he said.
According to Dai Wei, general manager of Hunan Dingli Technology Co., Ltd., “Nano-tungsten carbide cobalt-cobalt composite powder†is a key material for high-performance cemented carbide and ultra-fine structure surface-strength coating, especially suitable for high speed, high temperature and high pressure. Work under heavy load, corrosive media, etc. Mainly used in the manufacture of high toughness, high wear resistance carbide cutting tools, PCB micro cobalt, high precision grinding tools, micro cutting knives, surgical knives and so on.
According to him, at present, the annual domestic demand for nanocrystalline cemented carbide is more than 2,000 tons. China's high-performance PCB micro-cobalt, automobile manufacturing, precision machining, ultra-fine grained cemented carbide (grain size ≦0.4μm) tool 90 More than % depends on imports. Limited by process technology and key equipment, the traditional method has high production cost, product quality is difficult to control, and scale production cannot be realized, which seriously restricts the improvement of core competitiveness of China's cemented carbide industry.
"This is a major breakthrough in the technical problems of nanomaterials and industrialization in China. It also marks that China's powder metallurgy new materials have become a new step in the production of extremely important equipment, which will break the import of ultra-fine crystal carbide in China. Situation," he said.
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