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本文结合重庆望江机器厂三轮摩托车壳齿轮、变速箱主轴等零件,研究了35CrMo、45钢离子软氮化及再加热淬火工艺对其组织和性能的影响;进行了离子软氮化、离子软氮化后再淬火(下称复合热处理)、高温气体氰化三种工艺条件下的接触疲劳强度、弯曲疲劳强度、耐磨损性以及热处理变形的对比试验,得出了复合热处理后的零件具有优越的机械性能。另外,我们对强化机制及金相组织也作了初步的研究。
In this paper, the mechanical and mechanical properties of 35CrMo, 45 steel with soft nitrocarburizing and re-heating quenching were studied based on the three-wheeled motorcycle gear, gearbox spindle and other parts of Chongqing Wangjiang Machinery Factory. The effects of ion nitrocarburizing, Ion soft nitriding and then quenching (hereinafter referred to as composite heat treatment), high temperature gas cyanidation under three conditions of contact fatigue strength, bending fatigue strength, wear resistance and heat treatment deformation comparative test obtained composite heat treatment Parts have superior mechanical properties. In addition, we also conducted a preliminary study on strengthening mechanisms and microstructure.