| 转油线钢制密封圈的断裂原因及预防措施 |
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| 引用本文： | 宋利滨,李志峰,张宝坤. 转油线钢制密封圈的断裂原因及预防措施[J]. 腐蚀与防护, 2019, 40(3): 220-223 |
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| 作者姓名： | 宋利滨 李志峰 张宝坤 |
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| 作者单位： | 中国特种设备检测研究院,北京,100029;中国石油天然气股份有限公司锦州石化分公司,锦州,121000 |
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| 摘 要： | 近年来,国内多家石化企业的延迟焦化装置转油线钢制密封圈在投用较短的时间内相继发生断裂失效。对密封圈进行失效分析,结果表明:奥氏体不锈钢密封圈出现失效的主要原因是发生连多硫酸应力腐蚀开裂。建议选用马氏体型不锈钢0Cr13作为密封圈的材料,可有效避免其发生连多硫酸应力腐蚀开裂。
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| 关 键 词： | 密封圈 失效分析 敏化 连多硫酸应力腐蚀开裂 |
Failure Cause and Preventive Measures of Steel Sealing Ring for Transfer Line |
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| SONG Libin,LI Zhifeng,ZHANG Baokun. Failure Cause and Preventive Measures of Steel Sealing Ring for Transfer Line[J]. Corrosion & Protection, 2019, 40(3): 220-223 |
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| Authors: | SONG Libin LI Zhifeng ZHANG Baokun |
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| Affiliation: | (China Special Equipment Inspection and Research Institute,Beijing 100029,China;PetroChina Jinzhou Petrochemical Company,Jinzhou 121000,China) |
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| Abstract: | SONG Libin;LI Zhifeng;ZHANG Baokun(China Special Equipment Inspection and Research Institute,Beijing 100029,China;PetroChina Jinzhou Petrochemical Company,Jinzhou 121000,China) |
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| Keywords: | sealing ring failure analysis sensitization polythionic acid stress corrosion cracking (PASCC) |
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