Six Preparation Methods of Spherical Tungsten Powder
Spherical tungsten powder is used as a raw material in industries such as tungsten and tungsten alloy 3D printing, porous materials, and high-density powder spraying, and its preparation methods have attracted attention. So, what are the 6 preparation methods for spherical tungsten powder? The main domestic methods for preparing spherical tungsten powder are as follows: 1.Using the technology of secondary oxidation and reduction of tungsten powder, quasi-spherical tungsten powder can be obtained, and the manufacturing cost is low, but the spheroidization is not sufficient. 2. Using the granulation and sintering method to produce spherical powder for thermal spraying, spherical tungsten powder with a particle size of 40-750μm can be obtained. The density of the tungsten powder is not high, and the particle diameter is relatively large, and the powder is relatively coarse. 3. Use tungsten hexafluoride as raw material to prepare fine-particle (3～5μm) spherical tungsten powder. This method...