| X80螺旋埋弧焊管焊缝横向裂纹产生原因及预防措施 |
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| 引用本文： | 张克修,吴金辉,王树人.X80螺旋埋弧焊管焊缝横向裂纹产生原因及预防措施[J].焊管,2010,33(8):10-13. |
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| 作者姓名： | 张克修 吴金辉 王树人 |
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| 作者单位： | 1. 辽阳石油钢管厂,辽宁,辽阳111000
2. 中国石油天然气集团公司管材研究所,西安,710065 |
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| 摘 要： | 针对X80ф1 219 mm×18.4 mm螺旋缝埋弧焊管外焊缝浅层出现的横向裂纹,结合螺旋缝埋弧焊生产工艺的特点,分析了裂纹的产生主要是由于焊缝中心低熔点物质和焊缝熔池拉应力所致,并提出了几点避免横向裂纹产生的措施。
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| 关 键 词： | 螺旋埋弧焊管 横向裂纹 拉应力 焊缝成形系数 |
Causes and Preventive Measures for Transverse Cracks of X80 SAWH Pipe |
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| ZHANG Ke-xiu,WU Jin-hui,WANG Shu-ren.Causes and Preventive Measures for Transverse Cracks of X80 SAWH Pipe[J].Welded Pipe and Tube,2010,33(8):10-13. |
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| Authors: | ZHANG Ke-xiu WU Jin-hui WANG Shu-ren |
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| Affiliation: | 1.Liaoyang Petroleum Steel Pipe Plant,Liaoyang 111000,Liaoning,China;2.TubularGoods Research Center of CNPC,Xi＇an 710065,China) |
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| Abstract: | Aiming at transverse cracks which appeared in shallow layer of outside weld of 1219 mm×18.4 mm,X80 SAWH pipe,combined with production process of SAWH pipe,it pointed out material of low melting and tensile stress of weld pool are the main reason caused cracks,and proposed some measures to avoid causing transverse weld. |
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| Keywords: | SAWH pipe transverse crack tensile stress weld seam forming coefficient |
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