摘要
汨罗江水封隧道内管卡不锈钢螺栓在施工完成13 a后发生了严重腐蚀,出现部分螺栓断裂的现象,为查明其腐蚀失效原因,对隧道内螺栓所处腐蚀环境、腐蚀产物、螺栓材质进行了检测分析。结果表明:汨罗江水封隧道内不锈钢螺栓安装方式不符合要求、螺栓材质不合格、螺栓选型不符合使用环境等多方面因素,共同导致了管卡不锈钢螺栓的严重腐蚀。
The pipe clamp stainless steel bolts of Miluo River water-sealed tunnel were seriously corroded and some bolts were broken after 13 years of construction.In order to find out the causes of corrosion failure,the corrosion environment,corrosion products and bolt materials in the tunnel were tested and analyzed.Results showed that the improper installation mode of stainless steel bolts,the unqualified bolts materials and the bolts selection failed to meet the conditions of the application environment and other factors caused severe corrosion of the pipe clamp stainless steel bolts.
作者
周世彬
殷平
王超
李正敏
黄琳
谢涛
惠海军
ZHOU Shi-bin;YIN Ping;WANG Chao;LI Zheng-min;HUANG Lin;XIE Tao;HUI Hai-jun(West East Pipeline of Petrochina,Changsha 410000,China;Petrochina Northwest Marketing Changsha Company,Changsha 430023,China;China Petroleum Pipeline Research Institute Co.,Ltd.,Langfang 065000,China)
出处
《材料保护》
CAS
CSCD
北大核心
2020年第12期130-134,共5页
Materials Protection
关键词
水封隧道
不锈钢螺栓
腐蚀分析
防护
water-sealed tunnel
stainless steel bolt
corrosion analysis
protection
作者简介
通信作者:李正敏(1988-),工程师,硕士,主要从事油气长输管道检测评价工作,电话:0316-2075636,E-mail:lzmforever@foxmail.com。
