摘要
通过断口宏观分析、金相组织检查、硬度测试及化学成分分析,对某发动机喷油器压板螺栓的断裂原因进行分析。结果表明,螺栓硬度不符合相关要求及螺纹表面存在微裂纹是该螺栓断裂的主要原因。并提出了相应改进措施。
Through fracture macroscopic analysis, metallographic examination, hardness test and chemical composition analysis, the fracture cause of bolts used in an engine injector platen was analyzed. The results show that, the unqualified hardness of bolts and tiny crack of the surface are the main reasons for bolts fracture. Corresponding improvement measure is put forward.
出处
《热加工工艺》
CSCD
北大核心
2012年第7期201-202,共2页
Hot Working Technology
