The energy absorptivity and hardness of knife surface are obviously increased using graphite coating during laser thermal treatment for high speed steel knife.
采用石墨涂层，对高速钢刀片进行了激光热处理，显著地提高了刀片表面的能量吸收率和硬度。
2
The effect of formula and firing system has been probed on the main characteristics of product, such as thermal conductivity, water absorptivity, density and strength.