Copper Powder is the second important powder material following the iron powder. From the market of china, copper powder is widely used in copper-iron-based powder metallurgy parts, of which the largest amount belongs to the metallurgy parts of copper powder. If the average amount of copper powder is 5%, by 2005, China's copper consumption had reached 5,000 tons per year.
Thinking about the demand from foreign markets, association statistics of non-ferrous metals show that the demand volume of worldwide copper and copper alloy powder is 10 million metric tons each year, copper powder(FCu) of which the total annual demand in North America is about half. Meanwhile, in other Southeast Asian countries, it is mainly used for materials processing copper, demand has expanded each year, but no copper producers.
At present, a complete mechanical and chemical reduction process cycle of 120 kg / day sub-micron ultra-fine copper powder production plant has been successfully put into operation in China. Product by the National Research Center for testing of metal powders, 99.94% purity, particle size 0.5 ~ 1.0um. This product has been approved in Japan and domestic enterprises, there are some foreign companies are stepping up to do application testing.
Copper is the mid-1980s, the rapid development of a new type of fine chemical materials, has been a catalyst in the oil, lubricating oil additives, electrical conductivity and electromagnetic shielding paint, body anti-aging drugs and other products to achieve better application effect.
Copper powders’ production methods are mainly the two categories of mechanical and physical liquid-phase chemical reduction. At present, China is mainly using the traditional mechanical physical methods in the processing of copper powder. The products have significant gaps compared with foreign, leading to copper in China to promote the application of high-end products has been greatly restricted. Both at home and abroad as the liquid-phase chemical reduction R & D focus, but by the reducing agent of raw materials are expensive, toxic and harmful, boron powder and then deal with difficulties and other factors, has yet to be industrialized.
In the support of many experts and professors, China's chemical industry researchers search for cost-reducing agenuse and use the chemical seed and particle control technology, while the organic cycle, with referring with special mechanical devices, they achieves the production of sub-micron ultra-fine copper powder combing with the chemical reduction and particle control.(including the shape and size ) Separation process, especially in the follow-up the development of anti-oxidation technology for ultra-large-scale industrial production of fine copper powder and industrial application to open the door. They developed a new set of ultra-fine copper powder preparation process, the process is short, process control, and green low energy consumption, reduction of organic media can be recycled, non-toxic waste and emissions low. Source:http://www.mhcmp.com