| 膨胀干燥机加热夹套开裂原因分析 |
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| 引用本文： | 唐世华,郝俊文,潘红良,陈珏,王水河.膨胀干燥机加热夹套开裂原因分析[J].机械工程材料,2007,31(1):63-66. |
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| 作者姓名： | 唐世华 郝俊文 潘红良 陈珏 王水河 |
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| 作者单位： | 1. 华东理工大学机械与动力工程学院,上海,200237
2. 中国石油化工股份有限公司茂名分公司,广东茂名,525000 |
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| 摘 要： | 膨胀干燥机加热夹套在实际使用中经常发生开裂事故,为了保证其正常运行,对加热夹套的开裂原因进行了分析.结果表明:加热夹套开裂的主要原因是316L奥氏体不锈钢不耐氯化物腐蚀,焊缝有一定的缺陷和腐蚀介质存在,属于一种典型的应力腐蚀失效形式.并探讨了防止其开裂的方法.
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| 关 键 词： | 膨胀干燥机 加热夹套 316L奥氏体不锈钢 应力腐蚀 膨胀干燥机 加热 夹套 开裂原因 分析 Jacket Heating Analyses 方法 失效形式 应力腐蚀 存在 腐蚀介质 缺陷 焊缝 氯化物腐蚀 氏体不锈钢 结果 运行 开裂事故 |
| 文章编号： | 1000-3738（2007）01-0063-04 |
| 修稿时间： | 2006-02-152006-04-29 |
Cracking Analyses of Heating Jacket in Extruder-dryer |
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| TANG Shi-hua,HAO Jun-wen,PAN Hong-liang,CHEN Jue,WANG Shui-he.Cracking Analyses of Heating Jacket in Extruder-dryer[J].Materials For Mechanical Engineering,2007,31(1):63-66. |
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| Authors: | TANG Shi-hua HAO Jun-wen PAN Hong-liang CHEN Jue WANG Shui-he |
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| Affiliation: | 1. East China University of Science and Technology, Shanghai 200237, China; Maoming Petrochemical Company, Maoming 525000, China |
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| Abstract: | Cracking often takes place in heating jacket of extruder-dryer. The failure analysis of the heating jacket indicates that the austenitic stainless steel 316L is susceptible to stress corrosion cracking under the combined action of chloride environment and residual stresses induced by welding. An attempt to find an alternative material with better resistance to stress corrosion cracking was also discussed. |
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| Keywords: | extruder-dryer heating jacket 316L austenitic stainless steel stress corrosion cracking |
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