主汽管三通焊缝开裂泄漏原因分析研究  

The Research on the Cracking of Tee Joint Welding of Main Steam Pipe

作　　者：赵永宁[1] 岳增武[1] 胡新芳[1] 马翠花 

机构地区：[1]山东电力研究院 [2]山东黄台发电厂

出　　处：《山东电力技术》2001年第6期13-16,共4页Shandong Electric Power

摘　　要：对主汽管三通焊缝开裂的原因进行研究分析 ,发现由于焊口结构不合理和管路结构的原因 ,造成在焊缝三通侧熔合线处产生较大应力 ,并发生以蠕变损伤为主要损坏形式 。The experiments were conducted on the welding of tee joint, found the reasons for the failure of main steam pipe were the stress concentration in the HAZ due to the structure of welding and pipeline, which caused the crack propagated along the HAZ of welding own to the creep damage.

关 键 词：电厂 主蒸汽管道 三通焊缝 开裂 泄漏 分析 

分 类 号：TM621.72[电气工程—电力系统及自动化]