High-tech material for thermal spraying-spherical tungsten carbide powder

       High-tech material for thermal spraying-spherical tungsten carbide powder

Tungsten carbide can be made by heating a mixture of tungsten and carbon at high temperature. The presence of hydrogen or hydrocarbons can accelerate the reaction. Tungsten carbide powder is an important thermal spraying material. The currently used thermal spraying tungsten carbide powder is usually produced by a casting method. The powder is polygonal, has poor fluidity and low hardness, and is difficult to meet the requirements of high-performance thermal spray materials.



Compared with ordinary polygonal tungsten carbide powder, spherical tungsten carbide powder has two notable characteristics: one is that the appearance is spherical, the powder has good fluidity, and the surface quality of the coated workpiece is high; the other is the fine grain and hardness of the powder. Larger, better abrasion resistance of the coating. As a high-tech material for thermal spraying, spherical tungsten carbide powder has attracted the attention of domestic and foreign markets and researchers due to the uniqueness of its preparation technology and excellent performance, and a large amount of manpower and material resources have been invested in research and development.