Heat treatment process to control the nitriding of the gear material 31CrMoV9

摘要

A heat treatment process for controlling the nitriding of gear material 31CrMoV9 includes pretreating the gear material 31CrMoV9, venting, oxidizing, deep penetrating, diffusing and cooling. With the invention, the problem of the formation of reticulated or veined nitride caused by the conventional nitriding method can be effectively solved in order to effectively improve the fatigue strength and wear resistance of the nitride layers of the gear material 31CrMoV9.