Medium tungsten powder is the tungsten powder formed after sintering and the tungsten powder of the medium particles formed after the crushing. The tungsten carbide powder and YG20C alloy are prepared by high temperature carbonization.
Medium tungsten powder by high temperature carbonization can be produced in coarse grain tungsten carbide powder. it is a single particle, the ball mill for a long time the FSSS granularity whether will not significantly lower, while the tungsten carbide powder of FSSS not coarse particle size, and whether the alloy grain coarser. The average grain size of tungsten carbide can be produced by using 6~7 mm tungsten carbide powder.
YG20C alloy can be produced with medium tungsten powder by high temperature carbonization process, its organizational structure and physical properties of high temperature reduction with high temperature carbonization process of YG20C close, and alloy microstructure is more homogeneous, better microstructure, microscopic defects is less.
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