Supersonic flame spraying technology and tungsten carbide coating are adopted to improve the surface hardness, wear resistance and corrosion resistance of the mold.
Main properties of tungsten carbide coatings
A. hardness of coating: HV1150 or above.
B. bonding strength: over 68MPa.
C. porosity: less than 1%
D. Oxide content: less than 3%
E, and using the environment: less than 250 ℃, no violent collision
F. Service life: more than 6 times of the surface life of heat treatment