Nano-tungsten carbide cobalt is a composite material composed of nano-scale tungsten carbide and cobalt. In the manufacturing process of hot and cold rolling rolls, nano-tungsten carbide cobalt materials are widely used to improve the wear resistance, heat resistance and mechanical properties of the rolling rolls.

First, nano-tungsten carbide cobalt has excellent hardness and wear resistance. During the use of hot and cold rolling rolls, the high temperature and high pressure environment of the rolling material often leads to wear and thermal stress on the surface of the rolling rolls, and the high hardness and wear resistance of nano-tungsten carbide cobalt can effectively reduce the wear of the rolling rolls and extend the service life of the rolling rolls.

Secondly, nano-tungsten carbide cobalt has good heat resistance. Hot and cold rolling rolls will be affected by high temperatures during rolling, and nano-tungsten carbide cobalt can better withstand high temperature environments due to its excellent thermal stability and high melting point, preventing the rolling rolls from deforming or failing.

In addition, nano-tungsten carbide cobalt also has excellent mechanical properties. Its high strength and high toughness enable hot and cold rolling rolls to withstand greater rolling pressure and impact force, improving rolling efficiency and quality.

Nano-tungsten carbide WC-Co metal ceramic composite powder is a commonly used laser alloying or laser cladding powder. It has extremely high hardness and good corrosion resistance, and Co and WC have good wettability. Experimental results show that when WC-Co nano-composite powder is used for laser roller processing, there is almost no crack, and the life of the roller is greatly improved.