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Single-crystal ammonium paratungstate has properties of good fluidity, high bulk density, small and uniform grain gaps in the blank, few mechanical defects and high compaction density. It also has excellent physical properties such as good compression resistance, tensile resistance, impact resistance, shear resistance and fracture strength. Therefore, single-crystal ammonium paratungstate is an ideal raw material for the production of high-performance tungsten materials such as tungsten powder, tungsten wire, tungsten carbide microdrill, tungsten carbide tool, and tungsten alloy ammunition. More details,…

Spherical ultrafine ammonium paratungstate, or spherical single crystal ultrafine ammonium paratungstate (APT), is the key powder material for fabricating high-density alloys with high performance. More specifically, the spherical ultrafine APT is calcined to obtain tungsten oxide, and spherical tungsten powder is prepared after hydrogen reduction of tungsten oxide. The prepared spherical W powder has the advantages of high bulk density, good fluidity and easy filling of film cavity. Also, it makes the compact have uniform density. So it can be…

Coarse crystalized ammonium paratungstate (APT) is a flaky or needle-like white crystal that is slightly soluble in water and insoluble in alcohol. As a raw material for the powder metallurgy industry, coarse crystalized APT has the characteristics of simple production process, high purity, high bulk density, good fluidity, and easy storage and transportation. More details, please visit: http://ammonium-paratungstate.com/index.html The particle size of ammonium paratungstate crystals has a great influence on the particle size of subsequent tungsten powders. It has been…

Ammonium paratungstate tetrahydrate, or APT·4H2O, is an important intermediate product in the production of tungsten powder. It has been reported that it is a key process to crystallize APT·4H2O from an aqueous solution of ammonium tungstate in the current preparation method of tungsten powder. More details, please visit: http://ammonium-paratungstate.com/index.html According to the literatures, ammonium paratungstate tetrahydrate is an intermediate for the production of metal tungsten, tungsten-containing catalysts or hard materials based on tungsten (such as tungsten carbide) or sputtering targets.…

Ultrafine ammonium paratungstate is an important raw material for the production of nano tungsten powder. Since the 1990s, nano tungsten powder has been generally concerned by researchers all over the world, and ultrafine APT, as an important raw material for preparation of W powder, is also receiving much attention. More details, please visit: http://ammonium-paratungstate.com/index.html However, the particle size of common ammonium paratungstate is 25-45 μm, which is difficult to meet the requirements of producing nano tungsten powder, so the preparation…