天然气与石油2001，Vol.19Issue(1)：24-30,7.
长输天然气管道外防腐涂层选择
Selection of External Coatings for Long-Distance Gas Pipeline
摘要
Abstract
External corrosion coating is a main corrosion prevention measure of buried steel pipeline，with cathodic protection being complementary．To prevent long-distance transmission pipeline from producing functional loss due to external corrosion during their expected operating life，coatings with high performance，long life and high primary investment are more economical than coatings with low performance，short life and low primary investment in regard to long operating life engineering．
In addition，construction guality and person diathesis and so on are important effecting factors，and shall be considered in selection of coatings．For West-East Gas Pipeline with large diameter，long distance and long operating life，in the first，3-lay PE is recommended，fusion bonded epoxy powder coating shall be extensively adopted in those suitable areas；asphalt coating is only used on the gas pipeline with a short expected operating life．关键词
外防腐涂层/阴极保护/三层PE/熔结环氧粉末/石油沥 青/煤焦油瓷漆分类
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龚树鸣..长输天然气管道外防腐涂层选择[J].天然气与石油,2001,19(1):24-30,7.
