埋地煤气管道局部腐蚀原因分析  

Analysis for the Reason of Local Corrosion of Gas Pipes Buried in the Earth

作　　者：陈洪玉[1] 刘兴[1] 教立新[1] 

机构地区：[1]黑龙江科技学院材料系,黑龙江哈尔滨150027

出　　处：《表面技术》2006年第4期80-81,共2页Surface Technology

基　　金：黑龙江省教育厅资助项目(10553080)

摘　　要：为了延缓埋地煤气管道的腐蚀速度,延长管道使用寿命,分析了埋地碳钢煤气管道通常所受的腐蚀,主要是受化学腐蚀和电化学腐蚀。管道外壁的防腐保护层被破坏,又使外壁腐蚀速度加快,造成穿孔。提出了几点防护措施。With an aim to retard the the corrosionthat mineral gas pipes buried in chemical and electrochemical corrosion. The progress of the corrosion of gas pipes and prolong their using time, the earth usually suffered is analyzed. They are mainly subject to damage of anticorrosive layer of pipe outer wall quickens the corrosion of the outer wall, and eventually causes a puncture. Several protective measures are proposed for relevant firms to take into consideration.

关 键 词：埋地金属 煤气管道 腐蚀穿孔 防护措施 

分 类 号：TG174.1[金属学及工艺—金属表面处理] U177[金属学及工艺—金属学]