| 管道全位置自动焊焊接缺陷特点及其预防 |
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| 引用本文： | 祈哲,杨祥海. 管道全位置自动焊焊接缺陷特点及其预防[J]. 电焊机, 2012, 42(2): 84-86 |
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| 作者姓名： | 祈哲 杨祥海 |
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| 作者单位： | 中国石油川庆钻探工程公司四川油建公司,四川成都,610213 |
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| 摘 要： | 在西气东输二线东段施工中,统计分析了1 700道φ1 219 mm×18.4 mm管道全位置自动焊焊接缺陷,发现环焊缝仰焊位置是产生超标缺陷最多的区域,而细长的未熔合是超标缺陷的主要形式。加强焊接过程控制是克服和提高管道自动焊合格率的重要措施。
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| 关 键 词： | 焊接缺陷 管道 全位置 自动焊 |
Welding defects characteristics and prevention on metal-cored wire all-position pipe welding |
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| QI Zhe , YANG Xiang-hai. Welding defects characteristics and prevention on metal-cored wire all-position pipe welding[J]. Electric Welding Machine, 2012, 42(2): 84-86 |
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| Authors: | QI Zhe YANG Xiang-hai |
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| Affiliation: | (Engineering and Technology Development Training Center of SPC.,CNPC Chuanqing Oilfield Service Co.,Ltd.,Chengdu 610213,China) |
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| Abstract: | In the construction of West-East Natural Gas Transmission Project Ⅱ,through the statistical analysis of welding defects in all-position automatic welding,1 700 welding seams at pipe φ1 219 mm×18.4 mm,it is found that weld defects in overhead welding position is the largest area exceeding in circumferential seam,and the slender incomplete fusion is the main form of over proof defect.By analysis believe that strengthening the welding processes’ control are important measures to overcome and increase the qualification rates. |
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| Keywords: | welding defect all-position automatic welding |
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