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一、前言曾有过估计,为了更换被腐蚀的管道,英国每年花在这方面的费用超过500万英磅.实践证明,对新的管道采取防腐措施,在经济上是合算的.常用涂装的方法对管道进行防腐,特别是对管道内壁进行防腐涂装,不仅有防腐及抗磨损的作用,而且还可增加流量(从而可减少压缩泵等费用)、减少管线的维护费用.过去一直采用热涂沥青或煤焦油进行这类防腐,近年来,由于环境污染问题以及这类涂料本身所存在的问题(如
I. INTRODUCTION It has been estimated that in order to replace corroded pipelines, the United Kingdom spends more than 5 million pounds a year in this area. Practice has proved that it is financially cost-effective to adopt new anti-corrosion measures on pipelines. Of the method of corrosion of the pipeline, especially for the pipeline wall anti-corrosion coating, not only corrosion and wear-resistant effect, but also increase the flow (which can reduce the cost of compressors, etc.) to reduce pipeline maintenance costs. Thermal coating of asphalt or coal tar for such preservation, in recent years, due to environmental pollution problems and the existence of such coatings itself (such as