Nanometer violet tungsten oxide may be used for the preparation of thermal insulation masterbatch, which has good thermal insulation and weather resistance. And therefore it can be applied for the production of thermal insulation films and other thermal insulation products. Violet tungsten oxide can also be used to prepare fine and uniform tungsten powder and tungsten carbide powder with good dispersibility.
Ultrafine tungsten carbide-based cemented carbides have attracted increasing interest due to their excellent physical and mechanical properties such as high hardness, high strength and good cutting performance. However, the fine grain size tungsten powder and tungsten carbide powder produced by industrial scale in China generally have the problems of wide particle size distribution and uneven grain size, which cannot meet the needs of producing high quality ultrafine cemented carbide. In recent years, there have been many reports on the preparation of ultrafine tungsten powder, tungsten carbide powder or ultrafine WC-Co composite powder by plasma, high-energy ball milling and fluidization at home and abroad. Each has its own characteristics and strengths, but it is still under development. There is still a large distance from industrial production. Then, there is good news that violet tungsten oxide can be used to prepare tungsten powder and tungsten carbide powder. And it has gradually become industrialized.
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