Where are tungsten carbide coatings used?

       

Tungsten carbide material is widely used in aerospace, petroleum, metallurgy, machinery and other fields due to its high hardness, wear resistance, high temperature resistance and corrosion resistance. In general industrial applications, we call it a cemented carbide coating, which is usually made of tungsten carbide/cobalt as raw materials, and supersonic spraying on the surface of nickel or iron-based materials to form a protective layer, which can increase the wear resistance of the substrate. and service life.

On the whole, the implementation cost of this type of process is not cheap, but the amount of money saved in terms of damage to the entire component and the overall replacement cost is considerable. In the field of aerospace engine research and development, surface strengthening coating is one of the most eye-catching technologies, and tungsten carbide is an important basic material for strengthening coating of aircraft parts.

 

With the rapid development of high-tech, the aviation industry has put forward various performance requirements for data from time to time. Cermet? Yes, but most of the metal ceramics mentioned by aviation are composite materials, and the process components are unknown, but most of them have added tungsten components, such as negative thermal shrinkage materials zirconium tungstate, tungsten aluminum ceramics, etc.

 

There are advantages and there are advantages, which vary from person to person, and it is definitely not a panacea. Returning to our theme, the existing coating processes include supersonic flame sprayed tungsten carbide, hard chrome plating, physical vapor deposition of tungsten carbide, and explosive sprayed tungsten carbide. While these applications have triumphed in some categories, each has its limitations.