硬质合金是由难熔金属硬质化合物和粘结金属组成的复合材料,难熔金属碳化物通常是指元素周期表中第Ⅳ、Ⅴ、Ⅵ族的钨、钛、钽、钒、铪等元素的碳化物,在硬质合金中用得最广的是WC、TiC、TaC等,这些碳化物中的一种或者一种以上与粘结金属钻组成的合金常叫做硬质合金,这类合金普遍具有硬度高、耐磨性能好、红硬性好、化学热稳定性高、抗压强度高和 Carbide is a composite material composed of a refractory metal hard compound and a binder metal. The refractory metal carbide generally refers to tungsten, titanium, tantalum, vanadium, hafnium, etc. of Groups IV, V, and VI in the periodic table Element carbides, the most widely used in cemented carbide is WC, TiC, TaC, etc., these carbides in one or more of the alloy with a bonded metal diamond is often called carbide, such Alloy generally has high hardness, good wear resistance, red hardness, chemical thermal stability, high compressive strength and