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1 引言我厂生产的KPA3—256■汽车发动机调速器操纵柄长轴(以下简称长轴),用45~#钢制作,其结构简图如图1所示。长轴在服役中要求外表面耐磨,并要有一定的强度和
1 Introduction I plant KPA3-256 ■ car engine governor handle long axis (hereinafter referred to as the long axis), with 45 ~ # steel production, the structure shown in Figure 1. The long axis requires wear on the outer surface during service and requires a certain degree of strength