| X70管线钢焊接性分析 |
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| 引用本文： | 刘雪梅,高连才,张彦华.X70管线钢焊接性分析[J].电焊机,2004,34(7):14-15,23. |
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| 作者姓名： | 刘雪梅 高连才 张彦华 |
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| 作者单位： | 北京航空航天大学,北京,100083 |
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| 摘 要： | 针对管道建设中日益广泛采用的X70管线钢，分析了其碳当量与冷、热裂纹敏感性问题，探讨了防止X70管线钢产生冷裂纹的工艺措施，计算了不同板厚X70管线钢的预热温度，为实际的管道建设提供了理论依据与工程指导。
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| 关 键 词： | X70管线钢 焊接性 碳当量 冷裂纹 |
| 文章编号： | 1001-2303(2004)07-0014-03 |
Study on weldability of X70 pipeline steel |
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| Liu xue-mei,gao lian-cai,zhang yan-hua.Study on weldability of X70 pipeline steel[J].Electric Welding Machine,2004,34(7):14-15,23. |
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| Authors: | Liu xue-mei gao lian-cai zhang yan-hua |
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| Abstract: | in this paper,x70 pipeline steel's carbon equivalent,cold cracking sensibility and hot cracking sensibility are analyzed, the methods to avoid cold crack are discussed,the preheating temperature for different thicknesses of x70 pipeline steel is calculated,which provides theory critera and engineering guidance for pipeline construction. |
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| Keywords: | X70 pipeline steel weldability carbon equivalent cold cracks |
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