What is the performance and standard of tungsten powder?
Japan has developed a "tungsten powder and tungsten carbide powder," the industrial standard (JISH2116-1979); Britain, France and the former Soviet Union and other countries are equipped with the world's tungsten powder, Unified tungsten powder national standard
Especially the effect of purity and particle size is more obvious. Tungsten powder is classified according to purity and particle size and for different uses.
Tungsten powder is polygonal particle shape. In addition, the tungsten powder than the surface, loose density, tap density, etc. are also within a certain range. The performance of tungsten powder has a direct impact on the production of tungsten and the quality of tungsten powder metallurgy products
Tungsten powder in addition to the impurity content has certain requirements, the oxygen content to be controlled within a certain range. Common tungsten powder particle size is generally Fisher's average particle size 2 ~ 10μm
China's industrial production of tungsten powder in 1982 to develop a "hydrogen reduction tungsten powder technical conditions" (GB3458-82). The standard specifies the performance and classification of tungsten powder grades. And the inspection methods, acceptance rules, packaging, transportation and storage projects have made clear provisions.
