尘土颗粒对触点材料电接触性能的影响  

The Research of the Effect of Dust Particle on Electrical Contant Properties of Contan Material

作　　者：尹泉[1] 许良军[1] 孔志刚[1] 

机构地区：[1]北京邮电大学电接触科研室,北京100876

出　　处：《机电产品开发与创新》2010年第1期1-2,23,共3页Development & Innovation of Machinery & Electrical Products

摘　　要：以75-150μm的二氧化硅颗粒为代表讨论分析接触压力对微动失效的影响。在不同的压力下进行了多组微动实验，对实验数据和结果进行了曲线拟合和加速度分析，结果表明在微动过程中，颗粒发生了破碎和推开，使得电压变化曲线不断波动，接触压力对微动失效的影响并不是单调的，存在容易引起失效的压力。This article discusses the analysis of 75-150μm of silica particles on the impact of electrical contact failure. Do more set of experiments under several different pressure, and curve fitting and acceleration analysis. The results show that micro-process, the particles took place broken and pushed to make the fluctuation in voltage curve, contact pressure on fretting the impact of failure is not monotonous, there exist a pressure easily to cause the expiration.

关 键 词：微动 二氧化硅颗粒 接触电阻 接触压力 

分 类 号：X83[环境科学与工程—环境工程]