| X65钢管环焊缝冷裂倾向分析及预防措施 |
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| 引用本文： | 孙冬梅,崔保忠.X65钢管环焊缝冷裂倾向分析及预防措施[J].油气储运,1998,17(6):55-57. |
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| 作者姓名： | 孙冬梅 崔保忠 |
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| 作者单位： | 中国石油天然气管道局焊接试验培训中心
(孙冬梅)，中国石油天然气管道局机械制造厂(崔保忠) |
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| 摘 要： | 许多焊接结构的破坏事故都是以裂纹为起点，而钢材的淬硬组织、焊接拘束应力和氢的扩散聚集是导致Ｘ６５钢管道环焊缝冷裂产生的基本原因，通过对Ｘ６５钢焊接冷裂敏感性的分析，提出相应的预防措施，以保障管道的安全运行。
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| 关 键 词： | 钢管 焊接 裂纹 预防 油气管道 |
Analysis on cold cracking tendency for girth weld of X65 steel pipe and protective measures |
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| Sun Dongmei Cui Baozhong.Analysis on cold cracking tendency for girth weld of X65 steel pipe and protective measures[J].Oil & Gas Storage and Transportation,1998,17(6):55-57. |
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| Authors: | Sun Dongmei Cui Baozhong |
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| Institution: | Sun Dongmei Cui Baozhong |
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| Abstract: | Many damage accidents occurred on weld structure have been resulted from cracking and hardened texture of steel material, welding stress and diffusive accumulation of oxygen are basic reasons for generating
cold cracking occurred in girth welds of X65 steel pipeline. By analyzing cold cracking sensitivity on X65 steel pipe's weld, puts forward corresponding protective measures to guarantee safety operation of pipelines. |
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| Keywords: | steel pipe cracking reason protective measure |
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