Arc Erosion Characteristics of Nanocrystalline CuCr Contact Material

摘要：

The objective of this paper is to investigate vacuum arc erosion characteristics of a nanocrystalline CuCr (Cr 50 wt%) contact material. The vacuum contact simulation device was used to conduct contact materials arc erosion tests, and voltage waveforms of make and break arcs between the electrodes were recorded with LabVIEW. Using electricity-ray analytical balance and scanning electron microscopy, the mass loss and the surface structure of CuCr contact materials were obtained. Experiments indicate that the average break arc duration and the cathode contact mass loss of nanocrystalline CuCrSO material were higher than those of two microcrystalline CuCrSO materials. The eroded contact surface structure showed a clear difference: the cathode contact surface of nanocrystalline CuCr50 contact material was uniform, while each cathode contact surface of two microcrystalline CuCr50 materials had an obvious arc erosion pit.

作者: Laijun Zhao Zhenbiao Li Youwu Zhou

作者单位: State Key Laboratory of Advanced Electromagnetic Engineering and Technology, Huazhong University of State Key Laboratory of Advanced Electromagnetic Engineering and Technology, Huazhong University of

会议类型: 国际会议

会议名称: 2011 1st International Conference on Electric Power Equipment-Switching Technology(第一届电力设备开断技术国际会议 ICEPE)

会议地点: 西安

会议语种:英文

页码: 594-597

在线出版日期: 2011-10-23（万方平台首次上网日期，不代表论文的发表时间）