Miyou Group has made great achievements in the field of nanotechnology

The continuous production equipment for nano-metal powder developed by Jiangsu High-tech Enterprise Miyou Group Co., Ltd. has recently obtained the invention patent certificate issued by the State Intellectual Property Office. This is another honor after the company's inclusion of the nano metal/ceramic composite lubrication self-repairing agent project in the 2008-2009 National Torch Program. The invention has remarkable features in system design, particle size control, powder grading, etc. The innovation adopts a high vacuum DC arc plasma evaporation process to continuously and efficiently prepare high-purity nano metal and metal composite powder. The composite evaporating enthalpy technique used can greatly improve the preparation yield, improve energy utilization, and reduce cost. The invention is innovative, advanced and practical, and has reached domestic leading and international advanced technology.

The data show that nano-metal powder is a wide range of new materials, and the market demand in China is huge. However, due to technical reasons, the current production capacity is relatively low, and most of them need to be imported. The products developed with this technology are even rarer. It is understood that powders of metals such as copper, iron, gold, tin and nickel have become important basic materials for microelectronics. However, powdering various types of metals is a very difficult technique. At present, countries all over the world are developing various technologies to try to make metal powders reach the nanometer level.

The Miyou Group dares to use the unique nano-metal powder to continuously produce a patented technology production line to produce nano-powders, mainly nano-metal silver, nickel, copper, tin, iron, antimony, zinc, titanium, nano-alloy powder solder. And copper nickel, copper nickel tin composite powder and the like. Excellent product performance, high purity (99.9% or more), average particle size within 20 ~ 200 nm can be customized, particle shape, particle size can be controlled, particle size distribution is narrow, oxygen content is 3% ~ 5% lower than national standards; sphericity The crystallinity is high, the sintering shrinkage is small, and the tendency of particle agglomeration is small, which facilitates dispersion. Can be widely used in zinc-manganese batteries, ceramic capacitors (MLCC), large-scale integrated circuits, magnetic fluids, anti-bacterial fiber materials, medical materials, osteoporosis medicine, electrostatic shielding materials, catalysts, electronic paste, printing Ink, rocket propulsion, automotive lubricants and various types of machinery to reduce mechanical wear and extend machine life.

In order to make nano metal powder play a greater role, Miyou Group and Nanjing University of Technology jointly launched new product development. The high-performance metal/ceramic nano-composite self-healing agent successfully developed by nano-composite metal powder, ultra-fine ore powder and multi-layer surface modification technology has been identified by experts of the Chinese Academy of Sciences as the group leader. The products are innovative. It can replace imported products and is a domestic leading level. The product is applied to mechanical seals for high temperature autoclave, and the sealing effect is good, which fills the domestic blank. All performance indicators have passed the test by the statutory testing organization, and the tribological performance is excellent.

The optimized compounded nanoparticles are uniformly dispersed in the lubricating oil or grease, and their high activity is activated in the local high temperature of the frictional condition, resulting in a micro-melting effect. The composite nanoparticles have different activation results, and some of the particles are sintered and solidified in scratches and pits to form a composite nano surface material with ultra-slip, super-hard, super-wear, corrosion and high temperature resistance, which approximates the expansion of the friction sub-base. The coefficient guarantees the effectiveness of the repair. It has the functions of self-repairing, anti-wearing, anti-friction, high-extreme pressure value, etc.: it can form a repair film on the surface of various metal friction pairs in a short time; the anti-friction performance is improved by about 58%; the anti-wear performance is more than doubled; the fuel is saved. (electricity) 5% to 25% (depending on different equipment); reduce vehicle exhaust emissions by 30% to 50%; reduce mechanical noise by 2 to 5 decibels; increase engine power by 15% to 18%; The oil replacement time is extended from 5,000 km to 10,000 to 20,000 km. Can be widely used in various types of automotive engines, mechanical seals, ships, compressors, gear boxes, engineering machinery, machine tools and other industries, is an energy-saving, environmentally friendly products.

At present, nano-metal powder and nano-composite self-repairing agents are popular among well-known enterprises, universities and research institutes at home and abroad, and are favored by users.

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