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对于输送有害物质,特别是输送油气的管线,钢管内外均需涂以保护层来防止恶劣的外界环境和输送物质的衍生物造成的腐蚀。分析了目前市场上使用的两种胶粘剂的优点和缺点,介绍了一种新型的涂层结构,并将其与两种现有的涂层的性能进行对比。指出先进的两层聚乙烯管线防护涂层技术是一种较受欢迎的抵抗恶劣条件的防护涂层。
For the transport of harmful substances, especially the pipeline transporting oil and gas, both inside and outside the steel pipe shall be coated with a protective layer to prevent the corrosion caused by the harsh external environment and the derivatives of the transporting substance. The advantages and disadvantages of the two adhesives currently used in the market are analyzed. A new type of coating structure is introduced and compared with the performance of two existing coatings. Pointed out that the advanced two-layer polyethylene pipe protective coating technology is a more popular anti-harsh conditions protective coating.