金属加工（热加工）Issue(6)：142-145,153,5.
Q215风机盘管管道渗漏原因分析
Q215 fan coil pipeline leakage cause analysis
李景瑞 1史伟 1尹华 1张晓程 1张文琴 1刘海金1
作者信息
- 1. 兰州兰石检测技术有限公司 甘肃兰州 730314||甘肃省机械装备材料表征与安全评价工程实验室 甘肃兰州 730314
- 折叠
摘要
Abstract
Many leaks successively occurred in the fan coil pipes of a hot water boiler after about three years of use.The fan coil pipes in this batch all adopt Q215 hot-dip galvanized steel pipes.In order to find out the cause,some of the steel pipes cut on site were respectively subjected to macroscopic observation,chemical composition analysis,detection of the attachments on the inner wall,microscopic structure inspection,mechanical property test,morphology analysis of the opening part,energy spectrum analysis,etc.The results show that the chemical composition and mechanical properties of the steel pipes meet the standard requirements,the oxygen content in the circulating water exceeds the standard,there are many attachments on the inner wall of the pipes,and the pipes fail due to under-deposit corrosion.关键词
显微组织/垢下腐蚀/失效Key words
microstructure/under-deposit corrosion/failure引用本文复制引用
李景瑞,史伟,尹华,张晓程,张文琴,刘海金..Q215风机盘管管道渗漏原因分析[J].金属加工（热加工）,2025,(6):142-145,153,5.
