Influence of Fabrication Method on Arcing Erosion Behaviour of AgSnO2 Contact Materials
Electrical contacts are widely used for telecommunication and electric power as a device directly making and breaking electric current.In the future, those will be more in dispensable.The aim of this paper is to reveal the effect of fabrication method on arcing erosion of AgSnO2 contact materials.The experiment was performed under the same conditions.The load currents were set at DC 19V 20A and current-carrying time was about 0.3 second.In this paper, we investigate the characteristics of arc energy, arc time, welding force, mass change, surface morphology and surface profile.Moreover, the effect of fabrication method on the erosion model and the calculation of volumetric erosion were discussed.As a result, the erosion of AgSnO2 fabricated by ASE and MSE method is belong to the erosion model with many small pits.However, the erosion of AgSnO2 fabricated by CSE method is belongs to the erosion model with molten metal pool.Furthermore, the mass change measured by volumetric method is larger than that of weighing method and volumetric method is very important and useful to fully describe the condition of the contact surface.
AgSnO2 Contact Materials Arc Erosion Fabrication Method Three-Dimensional Topography
Chunping WU Wei WENG Xiaoping BAI Suhua LI Danqing YI Jiemin ZHOU
Key Laboratory for Nonferrous Metal Materials of the Ministry of Education,Central South University, FuDa Alloy Materials Co.,LTD,Wenzhou,325025 China
国内会议
武汉
英文
143-149
2013-11-16（万方平台首次上网日期，不代表论文的发表时间）