Metal powder has become an important basic material for microelectronics. It is widely used in rocket propulsion, automotive lubricants and various types of machinery to reduce mechanical wear and extend the life of the machine. At present, many countries are developing various technologies to achieve metal nano-scale. The scientific appraisal organized by the China Particle Society believes that the above two projects completed by Professor Zhang Zhenzhong of Nanjing University of Technology and Jiangsu Kunshan Miyou Industrial Co., Ltd. are innovative, advanced and practical, and have reached the domestic leading and international advanced level.
It is reported that in the technology developed in the world, one kind of metal can only be made into nano-sized powder separately, and the "continuous preparation technology of nano-metal powder" is to make metal into nano-scale powder by electric current in vacuum. The three metals can be made into a nano-scale powder at the same time, and different metal powders can be formed into a mixed material, thereby making the application range wider. The first domestic nano metal production line built by Miyou Company based on this technology has a production capacity of 500 grams of nano-metal per hour, while the world's advanced equipment can only produce 120 grams per hour.
The production of nano-metals into self-healing products, added to the lubricating oil, can significantly reduce the friction coefficient of the lubricating oil, protect the car engine and various operating machinery. In January 2008, Nanjing Oriental Long-distance Passenger Transport Co., Ltd. tried the repair agent and achieved good results. This technology has won 4 national patents, the friction coefficient of similar foreign products is 0.073, and the friction coefficient of "Mi" is 0.0424, which is nearly doubled.
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