摘要
通过对再生钻杆摩擦焊接头灰斑缺陷的电子显微镜分析,指出了摩擦焊灰斑缺陷的宏观和微观特征,探明了摩擦焊灰斑区夹杂物的主要来源,提出了防止和消除摩擦焊灰斑缺陷的工艺措施。
The paper indicates the macro-and micro-and micro-characteristics of greyness defects inside friction welding joints for regenerated drilling stems by electron scanning microscope analyysis. The main cause for slag inclusios in greyness defect zone is found, the procedure to prevent and to eliminate the greyness defects from friction welding joints is put forward.
出处
《焊接》
北大核心
1990年第9期5-9,共5页
Welding & Joining
