某主减速器与桥包连接处渗油原因分析

Cause Analysis of Oil Leakage at the Joint of a Main Reducer and Bridge Package

某汽车主减速器与桥包连接处渗油,经查发现一颗双头螺柱断裂,通过化学成分、硬度测试、宏观和微观检验等对断裂原因进行了分析。结果表明:螺柱断裂的主要原因是材料中存在原始缺陷。

The joint of the main reducer of an automobile and the bridge pack is permeated with oil.After investigation,it was found that a double-ended stud was broken.The fracture reason was analyzed by chemical composition analysis,hardness test,macro and micro inspection.The results show that the main reason for stud fracture is the original defect in the material.