理化检验：物理分册2012，Vol.48Issue(7)：478-482,5.
安全阀配对法兰焊口裂纹产生原因分析
Reason Analysis on Cracks of Flange Welding Joint Matched with a Relief Valve
李科 1柳建华 2李天雷 1曹晓燕 1施岱艳 1殷名学 1姜放1
作者信息
- 1. 中国石油天然气集团公司石油管工程重点实验室四川分室,成都610017 中国石油集团工程设计有限责任公司西南分公司,成都610041
- 2. 塔里木油田公司油气田产能建设项目部,库尔勒841000
- 折叠
摘要
Abstract
Cracks have occurred in the welding ioint of the flange, which is matched with a blowdown relief valve of a gas collecting device. The reason of crack was analyzed by means of macro and micro examination, chemical composition analysis, mechnical property testing and so on. The results showed that the sulfide stress corrosion cracking had occurred, and improper welding procedure or excessive cooling rate after welding was the main reason leading to the susceptive microstructure of sulfide stress corrosion cracking which resulted in the cracks in the weld.关键词
安全阀/焊口/裂纹/硫化物应力腐蚀/焊接工艺/冷却速度Key words
relief valve/welding joint/crack/sulfide stress corrosion/welding procedure/cooling rate分类
石油、天然气工程引用本文复制引用
李科,柳建华,李天雷,曹晓燕,施岱艳,殷名学,姜放..安全阀配对法兰焊口裂纹产生原因分析[J].理化检验：物理分册,2012,48(7):478-482,5.
