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Research on Relationship between Indenter Features and Contact Resistance of Contact Materials
Author(s): 
Pages: 3-6,12
Year: Issue:  6
Journal: Electrical Engineering Materials

Keyword:  球形压头镀层接触电阻有限元过渡区;
Abstract: 接触电阻是衡量触点材料产品质量的重要参数,也是评价电器产品电接触性能的考核指标.为提高触点材料接触电阻的精密测量技术,并合理解释接触电阻与接触压力的对应关系,以带有镀金层的球形压头与平面铆钉触点构成的接触对为对象,建立其有限元模型,获得并比较了银钯合金和不锈钢基体材质的电流场分布规律,进而确定了接触压力和接触电阻的关系.分析得出接触电阻测量结果中除收缩电阻外,还包括过渡电阻和体电阻,且接触电阻的不同成分与接触压力的对应关系各异.
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