| 不锈钢盐酸储罐腐蚀原因 |
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| 引用本文： | 李晓琳. 不锈钢盐酸储罐腐蚀原因[J]. 石油化工腐蚀与防护, 2003, 20(6): 63-64 |
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| 作者姓名： | 李晓琳 |
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| 作者单位： | 福建省东南电化股份有限公司化工机械厂,福建,福州,350011 |
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| 摘 要： | 对一立式不锈钢盐酸储罐腐蚀失效形式进行调查分析,由于玻璃钢防护层的抗渗性较差,造成介质渗透,引起缝隙腐蚀和点蚀。焊缝部位异种材质间的电偶腐蚀和Cl-是产生缝隙腐蚀和点蚀的主要原因。采用橡胶衬里可使设备得到有效保护。
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| 关 键 词： | 不锈钢 缝隙腐蚀 点蚀 Cl- 环氧玻璃钢 |
| 文章编号： | 1007-015X(2003)06-0063-02 |
| 修稿时间： | 2002-10-08 |
Causes of Corrosion Failure of Stainless Steel Chlorhydric Acid Tank |
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| Li XiaolinChemical Machinery Factory of Fujian Southeast Power , Chemical Co.,Ltd.. Causes of Corrosion Failure of Stainless Steel Chlorhydric Acid Tank[J]. Petrochemical Corrosion and Protection, 2003, 20(6): 63-64 |
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| Authors: | Li XiaolinChemical Machinery Factory of Fujian Southeast Power & Chemical Co. Ltd. |
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| Abstract: | The analysis and study of corrosion failure of a vertical stainless steel chlorhydric acid tank indicates that the failure is the result of poor anti - permeation performance of FRP protection, which leads to the permeation of the storage media and crevice and pitting corrosions of, the tank. The galvanic corrosion of the different materials in the welds and Cl- are the major culprits of crevice and pitting corrosions. The application of rubber lining can effectively protect the tank from corroding. |
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| Keywords: | stainless steel crevice corrosion pitting corrosion chlorine ion epoxy FRP |
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