潮湿大气对铆钉触头污染行为的研究  

STUDY ON SURFACE CONTAMINATION OF RIVET TYPE BIMETAL ELECTRICAL CONTACT

作　　者：毕玉玲[1] 王慧[1] 董向红[1] 李忆莲[1] 

机构地区：[1]天津大学材料学院,天津300072

出　　处：《理化检验（物理分册）》2000年第9期391-394,共4页Physical Testing and Chemical Analysis(Part A:Physical Testing)

摘　　要：研究了潮湿大气对铆钉触头 Ag- Cd O/ Cu表面的污染现象。新生产的铆钉触头 ,在潮湿大气中存放一定时间 ,触头表面受到大气污染形成约 3μm厚呈暗黄色或深蓝色的膜。 X光电子能谱初步分析证明 ,污染膜由碳 (石墨 )氯化物和氧化物构成 ,该膜增大了接触电阻 ,恶化了熔焊和侵蚀性能 。Surface contamination of rivet type bimetal electrical contact (Ag CdO/Cu) in moist air was studied in this paper. After 40 days exposure in the moist air, the silver colour surface of new contact became dark yellow and dark blue. It was identified by means of XPS that the contamination film with a thickness of 3μm, consisted carbon, chlorides and oxides.

关 键 词：大气污染膜 铆钉触头 潮湿大气 低压电器 

分 类 号：TM503.5[电气工程—电器]