| 管法兰金属波齿复合垫片失效分析 |
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| 引用本文： | 朱华平,魏安安. 管法兰金属波齿复合垫片失效分析[J]. 压力容器, 2010, 27(10): 50-55. DOI: 10.3969/j.issn.1001-4837.2010.10.009 |
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| 作者姓名： | 朱华平 魏安安 |
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| 作者单位： | [1]中国石化股份有限公司荆门分公司,湖北荆门448039 [2]江苏工业学院,江苏常州213016 |
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| 摘 要： | 某石化公司DCC装置烟机进口管道法兰上的DN900金属波齿复合垫片在开车过程中断裂并泄漏。经过宏观检查,力学性能测试,应力计算,能谱、金相、电镜分析,表明其失效原因是波齿复合垫片骨架材料存在孔洞缺陷和氧化物夹杂。针对失效原因提出了今后使用过程中应采取的防护措施。
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| 关 键 词： | 烟气 管道法兰 金属波齿垫 失效 分析 |
Failure Analysis of Wave-Serrated Metal Gasket for Pipe Flange |
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| ZHU Hua-ping,WEI An-an. Failure Analysis of Wave-Serrated Metal Gasket for Pipe Flange[J]. Pressure Vessel Technology, 2010, 27(10): 50-55. DOI: 10.3969/j.issn.1001-4837.2010.10.009 |
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| Authors: | ZHU Hua-ping WEI An-an |
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| Affiliation: | 1.Jingmen Branch of Limited Company of China＇s Petrochemical Industry,Jingmen 448039,China;2.Jiangsu Engineering Institute,Changzhou 213016,China) |
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| Abstract: | The DN900 wave-serrated metal gasket on the import flue gas pipe＇s flang of DCC device in a petrochemical company happened to rupture and leak when it was starting the process.After macroscop-ic inspection,mechanical testing,and spectroscopy,microscopy,electron microscopy,stress analysis,the results show that the main failure reason is that there are rolling inner defects and oxide inclusions in the gasket frame.Finally,some prevention measure were proposed. |
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| Keywords: | flue gas pipe flanges wave-serrated metal gasket failure analysis |
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