| 埋地钢质管道外防腐层的腐蚀机理 |
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| 引用本文： | 郭生武,方军锋,郝晓晨,王志宏,邓军孝.埋地钢质管道外防腐层的腐蚀机理[J].油气储运,2003,22(8):19-22. |
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| 作者姓名： | 郭生武 方军锋 郝晓晨 王志宏 邓军孝 |
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| 作者单位： | 1. 中国石油天然气集团公司管材研究所
2. 陕西省天然气有限责任公司 |
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| 摘 要： | 介绍了埋地钢质管道外防腐层有机覆盖层的防腐蚀机理，分析了有机防腐覆盖层与阴极保护的关系，指出了三层聚乙烯防腐层、熔结环氧粉末防腐层和液体环氧涂料的优缺点，推荐采用100％固体聚氨酯防腐涂料作为管道外防腐层的补口材料，并提出了提高覆盖层有效性的途径。
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| 关 键 词： | 埋地钢质管道 外防腐层 腐蚀机理 油气管道 阴极保护 覆盖层 |
Corrosion Mechanism of External Coating of Buried Steel Pipeline |
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| GUO Shengwu,FANG Junfeng et al.Corrosion Mechanism of External Coating of Buried Steel Pipeline[J].Oil & Gas Storage and Transportation,2003,22(8):19-22. |
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| Authors: | GUO Shengwu FANG Junfeng |
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| Abstract: | The anti-corrosion mechanism of external organic coating of buried steel pipeline is introduced. The re- lation between CP and organic coating is analyzed. It is pointed out that 3PE.FBE and LEC (non-solvent type)have different scope of work. For the use of field coating for welded joint,the 100% solid polyure-thane is recommended. The method to enhance the efficiency of external coating is provided. |
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| Keywords: | buried pipeline external coating corrosion mechanism analysis |
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