低压电器用铆钉触头在潮湿大气中的腐蚀

中国腐蚀与防护学报

2001, Vol. 21

Issue (4): 230-233

研究报告

本期目录 | 过刊浏览

低压电器用铆钉触头在潮湿大气中的腐蚀

刘仲娥;毕玉玲;李忆莲

天津大学电信学院

SURFAE CORROSION ACTION IN DAMP AIR OF THEBIMETAL ELECTRICAL CONTACT RIVET HEADUSED IN LOW VOLTAGE ELECTRIC APPARATUS

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天津大学电信学院

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摘要: 研究了潮湿大气对低压电器用铆钉触头（Ag-CdO/Cu）表面的腐蚀行为.新生产的铆钉在潮湿的大气中存放一定时间，其触头表面受到大气腐蚀，表面生成3 μm左右呈现暗黄色或深蓝色的薄膜.XPS分析表明，腐蚀产物由氯化物、氧化物及石墨态碳构成，增大了接触电阻，恶化了熔焊性能，因而影响了使用功能.

关键词 ：铆钉触头, 大气腐蚀

Abstract：Surface Corrosion in damp air of the bimetal electr ical contact rivet head(Ag-CdO/Cu)used in low voltage electric apparatus was stu died in this paper. The surface of new contacts was covered with a film about 3 μm thick because of corrosion after laid in damp air for 40 days. The film colo ur of which was yellow, dark yellow or dark blue instead of keeping silver. On X PS, results showed that the film consisted of carbon, chloride and oxides, which made contact resistance larger and weldability worse.

Key words： bimetal electrical contacts rivet head corrosion con tact resistance

收稿日期: 2000-03-09

ZTFLH:

TG172

通讯作者: 刘仲娥

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刘仲娥; 毕玉玲; 李忆莲 . 低压电器用铆钉触头在潮湿大气中的腐蚀[J]. 中国腐蚀与防护学报, 2001, 21(4): 230-233 .

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https://www.jcscp.org/CN/Y2001/V21/I4/230

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