Cast tungsten carbide grains do not melt themselves and they adhere to the workpieces with the help of molten steel tubes and substrate metals.

• 在堆焊过程中，铸造碳化钨颗粒本身并不熔化，而是代理助于熔化后的钢管和基体金属将铸造碳化钨粘附于工件上。