全面腐蚀控制
全麵腐蝕控製
전면부식공제
TOTAL CORROSION CONTROL
2013年
4期
65-67
,共3页
张云聪%徐萌%刘欣%郭磊%郭勇%王亮%汪海波
張雲聰%徐萌%劉訢%郭磊%郭勇%王亮%汪海波
장운총%서맹%류흔%곽뢰%곽용%왕량%왕해파
管道%腐蚀%失效分析
管道%腐蝕%失效分析
관도%부식%실효분석
pipe%corrosion%failure analysis
要:采用宏观形貌分析、化学成分分析、显微组织分析、XRD物相分析和土壤环境分析等方法查找某居民小区中的埋地天然气管道穿孔泄漏的原因.结果表明:该管道外防腐层性能较差,在使用过程中发生破损,管壁在强腐蚀性土壤中发生腐蚀穿孔是导致管道泄漏的主要原因,并据此提出了建议和对策.
要:採用宏觀形貌分析、化學成分分析、顯微組織分析、XRD物相分析和土壤環境分析等方法查找某居民小區中的埋地天然氣管道穿孔洩漏的原因.結果錶明:該管道外防腐層性能較差,在使用過程中髮生破損,管壁在彊腐蝕性土壤中髮生腐蝕穿孔是導緻管道洩漏的主要原因,併據此提齣瞭建議和對策.
요:채용굉관형모분석、화학성분분석、현미조직분석、XRD물상분석화토양배경분석등방법사조모거민소구중적매지천연기관도천공설루적원인.결과표명:해관도외방부층성능교차,재사용과정중발생파손,관벽재강부식성토양중발생부식천공시도치관도설루적주요원인,병거차제출료건의화대책.
The fracture reason of a natural gas pipeline occurred perforation leak in a residential area was investigated by macro-morphology analysis, chemical composition analysis, microstructure analysis, XRD phase analysis and soil environmental analysis. The results show that due to the poor performance of the pipeline coating, it’s very easy to be damaged. When the pipeline was buried in highly corrosive soil, the corrosion perforation in the pipe wall became the main reason for the gas leak. According this, it provides the countermeasure and suggestion.
