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| 新型铜基电接触材料的电接触性能研究 | |
| 引用本文： | 闫超杰,张晓燕,李远会,王文平,李广宇,朱礼兵.新型铜基电接触材料的电接触性能研究[J].低压电器,2009(9):21-23. |
| 作者姓名： | 闫超杰 张晓燕 李远会 王文平 李广宇 朱礼兵 |
| 作者单位： | 1. 贵州大学,贵州,贵阳,550003 2. 贵州大学,贵州,贵阳,550003;贵州省材料结构与强度重点实验室 3. 贵州群英电子有限公司,贵州,贵阳,550018 |
| 基金项目： | 贵州省科技计划项目，贵阳市科学技术计划项目 |
| 摘 要： | 研究了直流阻性负载条件下新型铜基电接触材料的电弧侵蚀特性、材料转移及接触电阻。材料在电流〈14A时，由阴极向阳极转移；在电流≥14A时，由阳极向阴极转移。触点电弧侵蚀后的表面形貌产生明显的孔洞和裂纹，接触电阻随电流值和接触次数增加有小同程度的波动。结果表明，接触过程中各种因素的不对称是产生材料转移的主要原因。 |
| 关 键 词： | 电接触材料 电弧侵蚀 材料转移 接触电阻 |
Study on Electrical Contact Performances of New Type Copper-Based Electrical Contact Materials |
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| YAN Chaojie,ZHANG Xiaoyan,LI Yuanhui,WANG Wenping,LI Guangyu,ZHU Libing.Study on Electrical Contact Performances of New Type Copper-Based Electrical Contact Materials[J].Low Voltage Apparatus,2009(9):21-23. | |
| Authors: | YAN Chaojie ZHANG Xiaoyan LI Yuanhui WANG Wenping LI Guangyu ZHU Libing |
| Affiliation: | 1;2;1.Guizhou University;Guiyang 550003;China;2.The Key Laboratory of Material Structure and Strength of Guizhou Province;3.Guizhou Qunying Electronics Co.;Ltd.;Guiyang 550018;China |
| Abstract: | The arc erosion characteristic, material transfer and contact resistance of new copper-based electric contact materials were studied. The material transfer is from cathode to anode with current 〈 14 A, and from anode to cathode with current≥ 14 A. The surface profile of contacts has obvious holes and cracks, the contact resistance are unstable with inceasing of current value and contact time. The results indicate that many symmetry factors are the important reasons of the material transfer in electric contact. |
| Keywords: | electrical contact materials arc erosion material transfer contact resistance |
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