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.
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.
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