摘要
根据油田热采现场的实际应用情况 ,对失效螺栓进行了预紧状态以及操作状态的强度校核 ,并进行了硬度测试。各强度满足要求 ,硬度超标。失效原因主要是螺纹根部的应力集中以及预紧力过大引起 ,对失效提出改进措施。
According to actual case of thermal recovery in oil field,strengths were checked on pretighten force and working state,and the rigidity was test for failure bolt. It proves that it's strengths meet need,the rigidity is superhard.Failure reason is that main stress is concentrated in root of screw thread and pretightening force is too big.
出处
《润滑与密封》
CAS
CSCD
北大核心
2004年第5期65-66,共2页
Lubrication Engineering
