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氮化是重载、高速发动机零件表面强化的有效方法之一。对H18/20和H16/17类型的发动机,氮化用于提高相接触的零件表面的耐磨性。与一般表面强化工艺,如渗碳(凸轮)、渗氮(齿轮)、渗铬(齿轮轴套)、镀铜(曲柄轴滑动轴承)等方法相比,氮化可以明显改善曲轴、齿轮、发动机转轴等承受循环弯曲和接触负荷机件的疲劳寿命。本文对气体离化和离子氮化的关键重载结构钢机件氮化层性能进行了分析比较。为了研究采用了直径为30～50mm
Nitriding is one of the most effective methods for heavy-duty, high-speed engine parts surface strengthening. For H18 / 20 and H16 / 17 types of engines, nitriding is used to increase the wear resistance of the surface of the part in contact. Compared with the general surface strengthening process such as carburizing (cam), nitriding (gear), chromizing (gear sleeve), copper plating (crankshaft plain bearing) and other methods, nitriding can significantly improve the crankshaft, gear, engine Rotor shaft to withstand cyclic bending and contact fatigue load life of the device. In this paper, gas ionization and ion nitriding critical heavy structural steel parts nitride layer performance analysis and comparison. In order to study the use of a diameter of 30 ~ 50mm