提高高强钢厚壁管根部焊接缺陷返修成功率的措施
Measures to Increase Success Rate of Repairing Root Welding Defects in High Strength ThickWall Pipes
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- DOI:
- 作者:
- 张新1, 王民1, 王霞2
ZHANG Xin1
- 作者单位:
- 1. 中油管道局国内事业部, 河北廊坊 065000;
2. 中油管道局海洋公司, 河北廊坊 065000
Domestic Department of China Petroleum Pipeline Bureau,Langfang 065000
- 关键词:
- 管道工程;焊接返修;根部缺陷;原因;措施
pipeline engineering;welding repair;root defect;reason measure
- 摘要:
- 在西气东输二线管道工程安装中,根部缺陷占焊接缺陷总数的30%,而根部缺陷返修成功率不足70%,采取避免缺陷产生的全壁厚返修措施,可提高一次返修合格率。文章从根部缺陷产生的机理和影响因素,根部缺陷全壁厚焊接返修的特性和误区、返修措施、返修效果等方面对其进行了论述。
In the Second West to East Gas Pipeline construction,the root welding defects was 30% of the total welding defects and the primary success rate of root welding defect repairing was less than 70%.Full wall thickness repairing approach is able to increase the primary success rate.In this paper,the mechanism and influence factors of root welding defects,the functions and some misunderstandings of the full wall thickness repairing approach,the repairing measures and repairing effect are discussed.2011,6(6): 51-52 收稿日期：2011-1-11分类号：TE973.3作者简介：张新(1974-),男,山东嘉祥人,高级工程师,1997年毕业于中国石油大学(华东)焊接专业,主要从事油气长输管道施工项目管理工作.参考文献：
[1]周振丰,张文钺.焊接冶金与金属焊接性[M].北京:机械工业出版社,1992.
[2]高云青,王纪,李颂宏,等.西气东输冀宁支线X80管线钢焊接工艺[J].石油工程建设,2006,(4):52-54.