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In addition to certain requirements on the impurity content of tungsten powder, the oxygen content must be controlled within a certain range. The commonly used tungsten powder particle size is generally Fisher’s average particle size of 2 to 10 μm. Tungsten powder is in the shape of polygonal particles. In addition, the specific surface area, bulk density, and shaken density of tungsten powder also vary within a certain range. The properties of tungsten powder have a direct impact on the production of tungsten materials and the quality of tungsten powder metallurgy products, especially the impact of purity and particle size is more obvious. Tungsten powder is classified according to purity and particle size and different uses.
The quality of tungsten powder directly determines the quality and alloy properties of tungsten carbide. Tungsten powder classification can effectively change the properties of the powder, solve the problem of coarse and fine powders, reduce the difference between large particle size, small particle size and average particle size, and produce To produce coarser and more uniform tungsten carbide powder; since the characteristics of tungsten determine that it is not easily broken, moderate crushing is carried out before classification to separate the agglomerated particles in the powder, which can effectively separate the powder and improve uniformity; classification must be strictly and finely adjusted System operating parameters, based on the characteristics of the original powder, need to find the optimal operating process.
In addition to certain requirements on the impurity content of tungsten powder, the oxygen content must be controlled within a certain range. The commonly used tungsten powder particle size is generally Fisher's average particle size of 2 to 10 μm. Tungsten powder is in the shape of polygonal particles. In addition, the specific surface area, bulk density, and shaken density of tungsten powder also vary within a certain range. The properties of tungsten powder have a direct impact on the production of tungsten materials and the quality of tungsten powder metallurgy products, especially the impact of purity and particle size is more obvious. Tungsten powder is classified according to purity and particle size and different uses.
The quality of tungsten powder directly determines the quality and alloy properties of tungsten carbide. Tungsten powder classification can effectively change the properties of the powder, solve the problem of coarse and fine powders, reduce the difference between large particle size, small particle size and average particle size, and produce To produce coarser and more uniform tungsten carbide powder; since the characteristics of tungsten determine that it is not easily broken, moderate crushing is carried out before classification to separate the agglomerated particles in the powder, which can effectively separate the powder and improve uniformity; classification must be strictly and finely adjusted System operating parameters, based on the characteristics of the original powder, need to find the optimal operating process.
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