The fine spherical tungsten powder is prepared by a plasma method and has the characteristics of good fluidity, good quality, high purity, uniform particle size distribution. It is widely used in thermal spraying, porous materials, and powder metallurgy industries.
Applications
Porous tungsten prepared by fine spherical tungsten powder has more uniform voids, and is gradually replacing conventional tungsten powder for making porous tungsten parts such as cathodes for high-power pulsed microwave tubes, tungsten-tungsten cathodes for electron tubes, and molten Zn. Filters for metals such as Al, Mg, Bi, and Hg; sweating materials for rockets; carriers for catalysts or catalysts; and positioning thrusters for artificial satellites.
In the field of thermal spraying, fine spherical tungsten powder not only has good fluidity, but also the resulting coating has better wear resistance.
The powder metallurgy compact made of fine spherical tungsten powder shrinks very uniformly during sintering and can achieve good dimensional control. The panels produced by this method have higher recrystallization temperatures, higher hardness, and lower bending transition temperatures than industrial tungsten.
The rocket nozzle bushing made of fine spherical tungsten powder has good fracture resistance and corrosion resistance under thermal stress.
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