电焊机2017，Vol.47Issue(6)：55-58,4.DOI:10.7512/j.issn.1001-2303.2017.06.12
长输管道环焊缝缺陷返修
Experience in repairs of girth weld defects for long-distance pipeline
牛连山 1王丛亮 1董伟 2胡立新 1闫臣 1刘文虎1
作者信息
- 1. 中国石油天然气管道科学研究院有限公司,河北廊坊065000
- 2. 中国石油天然气管道局第三工程分公司,河南郑州451450
- 折叠
摘要
Abstract
As the steel grade of long-distance pipeline improves,the wall thickness and weldability of pipeline reduces,thus the requirements for the quality of pipeline construction are increasing.As the last but the most important procedure of pipeline welding,repair directly determines the comprehensive efficiency of welding project.The formation of defects of long-distance pipeline and its repair are investigated deeply,and some notes for welding operators are also presented.For a better understanding,some typical cases,which contain different operation methods and techniques for different weld defects are discussed.All of the experience has great significance for guiding weld repair.关键词
管道/焊道/缺陷/返修Key words
pipeline/bead/defect/repair分类
矿业与冶金引用本文复制引用
牛连山,王丛亮,董伟,胡立新,闫臣,刘文虎..长输管道环焊缝缺陷返修[J].电焊机,2017,47(6):55-58,4.
