Copper Cobalt Alloy injection molding made of high-dens […]
Copper Cobalt Alloy injection molding made of high-density tungsten alloy. The method comprises the following steps: mixing nickel powder, copper tungsten powder or iron powder with a uniform particle size of 1-5 microns with tungsten powder with a particle size of 0.5-2 microns and tungsten powder with a size of 5-15 microns, % Of organic binding agent (such as paraffin or polymethyl acrylate), injection molding, steam cleaning and irradiation to remove binder, and sintering in hydrogen to obtain high-density tungsten alloy.
Copper oxide powder (mixed and ground reduced to copper) instead of metallic copper powder, copper forms a continuous matrix in the sintered compact, with tungsten as the reinforcing framework. The high-expansion component is governed by the second component around it and the powder is sintered in wet hydrogen at a lower temperature. It is said that the use of very fine powder can improve the sintering performance and densification, so that it reaches more than 99%.
Tungsten copper alloy copper and tungsten advantages, high strength, high specific gravity, high temperature resistance, arc erosion, good electrical and thermal conductivity, processing performance. High-quality tungsten powder and oxygen-free copper powder, isostatic pressing (high temperature sintering - infiltration of copper), to ensure product purity and accurate ratio, fine structure, excellent performance. Arc breaking performance, good conductivity, good thermal conductivity , Small thermal expansion.