用固体电解质涂料在气相环境中实施外加电流阴极保护

中国腐蚀与防护学报

1989, Vol. 9

Issue (2): 130-136

研究报告

本期目录 | 过刊浏览

用固体电解质涂料在气相环境中实施外加电流阴极保护

葛斗福;张宗旺;张承典;徐乃欣

华东输油管理局;华东输油管理局;中国科学院上海冶金研究所;中国科学院上海冶金研究所

IMPRESSED CURRENT CATHODIC PROTECTION IN ATMOSPHERIC ENVIRONMENT BY MEANS OE A SOLID-ELECTROLYTE-CONTAINING COATING

Ge Doufu Zhang Zongwang(East-China Oil Piping Administration)Zhang Chengdian and Xu Naixin(Shanghai Institute of Metallurgy Academia Sinica)

全文: PDF(585 KB)

摘要: 传统的阴极保护技术只能应用在液体电解质环境中。为了对气相环境中的金属实施外加电流阴极保护,在金属表面上涂敷特地研制的以固体电解质Naβ″(B)-Al_2O_3为导电组分的涂层(代号CK),外面再涂敷电子导电的阳极涂层。构成阴极保护电流的固相通路。实验研究结果证实了这一新方案的可行性。

Abstract：The application of conventional impressed current cathodic protection is restricted to metals which are exposed to aqueous environments. In order to protect cathodically metals against atmospheric corrosion, a special paint is formulated, which contains solid electrolyte sodium-β″(β)-alumina as electrolytically conducting component. The metal object to be protected is coated with the paint and sequentially covercd with auxiliary anode coating, which is an electronic conductor. The sandwich structure of the coating helps to carryout impressed current cathodic protection in atmospheric environments. The inner coating of high ionic conductivity serves as electrical path for protective current. A graphite reference electrode is installed to control the metal potential within a predetermined protective potential range. The additional advantage of the new arrangement is uniform potential distribution due to close proximity of cathodically protected surface to anode coating. The above considerations have been verified by laboratory testsThe practical effectiveness of the new technique has also been demonstrated by the significant suppression of atmospheric corrosion of an overhead pipe.

收稿日期: 1989-04-25

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葛斗福;张宗旺;张承典;徐乃欣. 用固体电解质涂料在气相环境中实施外加电流阴极保护[J]. 中国腐蚀与防护学报, 1989, 9(2): 130-136.
. IMPRESSED CURRENT CATHODIC PROTECTION IN ATMOSPHERIC ENVIRONMENT BY MEANS OE A SOLID-ELECTROLYTE-CONTAINING COATING. J Chin Soc Corr Pro, 1989, 9(2): 130-136.

链接本文:

https://www.jcscp.org/CN/ 或 https://www.jcscp.org/CN/Y1989/V9/I2/130

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[4] Cathodic Protection, Theory and Practice, edited by V. Ashworth and C. J. L. Booker 14 (1986)
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[6] #12
[7] 林祖纕等编著,《快离子导体(固体电解质)-基础,材料、应用》,上海科学技术出版社,(1983)

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