压力容器Issue(3)：50-58,9.DOI:10.3969/j.issn.1001-4837.2015.03.007
乙丙橡胶装置裂纹分析与防治技术
Cracks Analysis and Prevention Technology for Ethylene Propylene Rubber Unit
庞勃 1贾伟东 2周桌明 2谭洪武 2郑启文3
作者信息
- 1. 吉林化工学院，吉林 吉林 132022
- 2. 中国石油 吉林石化公司，吉林 吉林 132022
- 3. 哈尔滨焊接研究所，黑龙江 哈尔滨 150028
- 折叠
摘要
Abstract
The nature and causes of the cracks in ethylene -propylene rubber unit unit piping,heat ex-changers and other parts were studied.The pipeline and equipment manufactured by 304 austenitic stain-less steel,duplex stainless steel 2205 or 2507.Results for metallurgical,fracture,spectroscopy tests point-ed out that these cracks are caused by chloride ion stress corrosion cracking (SCC ).Due to:a medium containing more difficult to eliminate the chlorides and water or water vapor;operating temperature of 70~200℃(sensitive temperature range);weld heat and weld residual stress and residual stress processing. Discussed the technical ways EPR unit prevention of chloride SCC:related equipment selection of ferritic steel (eg 20#),2507 duplex stainless steel or high nickel alloys (such as C2000)production;try to re-duce the amounts of harmful Cl-in the media;control of welding and forming stress.关键词
乙丙橡胶装置/裂纹性质与成因/控制与防治技术Key words
ethylene propylene rubber unit/the nature and causes of crack/control and prevention tech-nology分类
机械制造引用本文复制引用
庞勃,贾伟东,周桌明,谭洪武,郑启文..乙丙橡胶装置裂纹分析与防治技术[J].压力容器,2015,(3):50-58,9.
