目前,我国高速钢消耗量大,且普通高速钢的切削性能不能适应加工高强度钢和耐热合金钢的需要,只得消耗相当数量的含有大量钴元素的超硬高速钢。但由于超硬高速钢加工性能差,需用特殊砂轮磨制等缺点,难以广泛采用。高速钢气体软氮化是解决上述问题的有效途径。 At present, the consumption of high-speed steel in our country is large, and the cutting performance of ordinary high-speed steel can not meet the need of processing high-strength steel and heat-resistant alloy steel. Therefore, a considerable amount of super-hard high-speed steel containing a large amount of cobalt is consumed. However, due to poor processing performance of super-hard high-speed steel, the need to wear a special grinding wheel and other shortcomings, it is difficult to widely used. High-speed steel gas nitrocarburizing is an effective way to solve the above problems.