一、工艺高速钢刀具经常规淬火回火后,进行不高于回火温度的化学热处理(如蒸汽处理、氧氮化、软氮化、渗硫、硫氮共渗、硫氰共渗等),能显著提高使用寿命。唐山齿轮厂用甲酰胺与乙醇的混合溶液作渗剂,进行氧、硫、硼、碳、氮五元共渗,使高速钢刀具的寿命提高了1～2倍。我们根据他们的经验,考虑到甲酰胺价格昂贵,供应紧张,便决定用氨水为主要渗剂,加入相应的 First, the process of high-speed steel cutting tool after conventional quenching and tempering, the tempering temperature is not higher than the chemical heat treatment (such as steam treatment, oxygen nitriding, soft nitriding, infiltration of sulfur, sulfuritriding, thiocyanate infiltration, etc.) , Can significantly improve the service life. Tangshan Gear Factory with formamide and ethanol mixed solution as the infiltration agent for oxygen, sulfur, boron, carbon, nitrogen five yuan infiltration, so that the life of high-speed steel cutters increased by 1 to 2 times. Based on their experience, we consider that formamide is expensive and in short supply, we decided to use ammonia as the main penetration agent, adding the corresponding