焊管2012，Vol.35Issue(1)：53-56,4.
X80直缝埋弧焊管扩径焊缝开裂原因分析
Analysis on Weld Cracking Reason of X80 SAWL Pipe During Expanding
刘迟 1李富强 2陈巧明 1吴金辉2
作者信息
- 1. 中国石油集团石油管工程技术研究院,西安710065
- 2. 北京隆盛泰科石油管科技有限公司,北京100101
- 折叠
摘要
Abstract
It briefly introduced the application status of SAWL pipe in oil and gas transportation pipeline, and put forward weld cracking along inside welding toe which occurred on individual pipe after expansion, when some enterprise used domestic X80 steel plate to produce SAWL pipe. Through analysis on working procedure, process and parameters of steel pipe production, steel plate performance before and after expansion, welded joint performance, it considered that the yield strength value of steel plate is near the upper limit of technical condition, is the main reason caused steel pipe cracking during expanding. Some solutions were proposed, such as adjusting milling edge, forming, welding, expanding and other technological parameters.关键词
直缝埋弧焊管/扩径/开裂/内焊趾Key words
SAWL pipe/expansion/cracking/welding toe分类
矿业与冶金引用本文复制引用
刘迟,李富强,陈巧明,吴金辉..X80直缝埋弧焊管扩径焊缝开裂原因分析[J].焊管,2012,35(1):53-56,4.
