With the development of coating technology, coating on device surface has become an effective method of wear resistance and corrosion protection. In recent years, tungsten carbide thin film coating technology has been widely studied for the protection of steel and other metal materials. With the functionalization of devices and the increasingly complex shape, modern industry has put forward higher requirements for protective coatings applied on its surface.

Nano-tungsten carbide powder is an important raw material for superfine cemented carbide. At the same time, nano-tungsten carbide powder has high specific surface area, which is also conducive to improving its catalytic performance and advantages as catalyst carrier. Therefore, the study of nano-tungsten carbide is of great significance.

Nano-tungsten trioxide powder is an important industrial raw material, which can be used to prepare nano-tungsten powder and nano-tungsten carbide powder. In addition, nano-WO₃ has strong absorption ability to electromagnetic wave, can be used as excellent absorption material in the utilization of solar energy, and can be used as important invisible material in the military. Nano-WO₃ powder has a huge specific surface, significant surface effect, and is a good catalyst. As a transition metal compound, nano-WO₃ has semiconductor properties and is a potential sensitive material. It is sensitive to many gases such as NO_x, H₂S, NH₃ and so on.

6×100×100mm tungsten copper plate has a thickness of 6 mm, a width and a length of 100 mm, a conventional thickness tolerance of ±0.2 mm, and a length and width tolerance of 0 to +2 mm. It has good electrical and thermal conductivity, arc ablation resistance and high material erosion rate, especially in the corrosion of molds made of tungsten steel and high temperature resistant superhard alloys.