| 基于BS7910的异种钢焊缝缺陷安全性评定及实验验证 |
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| 引用本文： | 陈玮,张树林,李立人,吴祥鹏,盛建国,毛荷芳. 基于BS7910的异种钢焊缝缺陷安全性评定及实验验证[J]. 发电设备, 2009, 23(2): 126-131 |
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| 作者姓名： | 陈玮 张树林 李立人 吴祥鹏 盛建国 毛荷芳 |
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| 作者单位： | 上海发电设备成套设计研究院,上海,200240;上海发电设备成套设计研究院,上海,200240;上海发电设备成套设计研究院,上海,200240;上海发电设备成套设计研究院,上海,200240;上海发电设备成套设计研究院,上海,200240;上海发电设备成套设计研究院,上海,200240 |
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| 摘 要： | 介绍了BS7910-1999的平面缺陷的2种评定方法（1A和2A）；并用这2种方法对异种钢焊缝缺陷进行安全性评定。评定结果表明，8个具有焊接缺陷的节流孔板均通过了2A评定。同时进行了焊接件的疲劳和爆破实验。实验结果显示，疲劳试验并没使原有裂纹扩展，爆破压力与无缺陷管相当。BS7910—1999的评定结论和实验结果基本吻合。
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| 关 键 词： | 焊缝安全评定 异种钢 疲劳裂纹扩展 实验验证 |
Safety Assessment and Verification for Bimetallic Welding Flaws Based on BS7910 |
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| CHEN Wei,ZHANG Shu-lin,LI Li-ren,WU Xiang-peng,SHEN Jian-guo,MAO He-fang. Safety Assessment and Verification for Bimetallic Welding Flaws Based on BS7910[J]. Power Equipment, 2009, 23(2): 126-131 |
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| Authors: | CHEN Wei ZHANG Shu-lin LI Li-ren WU Xiang-peng SHEN Jian-guo MAO He-fang |
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| Affiliation: | CHEN Wei,ZHANG Shu-lin,LI Li-ren,WU Xiang-peng,SHEN Jian-guo,MAO He-fangShanghai Power Equipment Research Institute,Shanghai 200240,China |
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| Abstract: | Two evaluation ways specified in BS 7910—1999(1A and 2A) are being presented,which were used for safety assessment of 8 orifice plates containing bimetallic welding flaws.Evaluation results show that all the 8 orifice plates can pass the 2A class assessment.While in the subsequent fatigue and explosion tests carried out for welded parts,no propagation of original crack was found after fatigue test and the corresponding pressure value obtained by explosion test was equivalent to tubes with no defects.The conclusion obtained based on BS 7910—1999 is proved to be in accordance with that of verification results. |
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| Keywords: | safety assessment of weld bimetal fatigue crack growth verification experimen |
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