大口径输气管道工程焊接施工技术的现状及展望

The Current Situation & Prospect for Big Diameter Gas Pipeline Welding Technology

综述国内外大口径管道工程的焊接工艺及方法 ,介绍焊接缺陷检测技术以及环焊接头断裂性能的研究进展和缺陷的安全评定方法 ,分析了国内管道焊接施工技术的现状及差距 。

The big diameter pipeline welding technology used in home & abroad was summarized in this paper.The welding defects test technology,the research development of fracture property on girth welding joint & the defect safy assessment method were introduced.Also, writer analyzes the present situation & technology difference of pipeline welding constraction in domestic and puts forword a proposition for pipeline welding research & development in our country.\;