The composition change of contact material surface

被引：1
|
作者：
Wu, XX [1 ]
Di, MH [1 ]
Li, ZB [1 ]
Liu, CY [1 ]
机构：
[1] Huazhong Univ Sci & Technol, Dept Elect Engn, Wuhan 430074, Peoples R China
来源：
PROCEEDINGS OF THE FORTY-NINTH IEEE HOLM CONFERENCE ON ELECTRICAL CONTACTS | 2003年
关键词：
electrical contacts; material composition;
D O I：
10.1109/HOLM.2003.1246489
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
Contact surface composition change will definitely affect the performance of electrical contacts, even make the electrodes fail to work. Composition change of contact material surface heated respectively by arcing current and Joule energy is studied in this paper and experimental results indicate that percentage change of metals is influenced by both the energy Input to the electrode and the properties of contact material, such as thermal conductivity, specific heat, density and melting point etc. Two criteria are presented to show the rules of composition change for contact heated by arcing current and Joule energy respectively.
引用
收藏
页码：139 / 144
页数：6
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