同轴连接器镀金层磨损分析方法的研究.pdf

第 10 期 电　　子 　　学 　　报 Vol. 34 　No. 10 　2006 年 10 月 ACTA ELECTRONICA SINICA Oct. 　2006 　 同轴连接器镀金层磨损分析方法的研究 周怡琳 (北京邮电大学自动化学院 ,北京 100876) 　　摘 　要 : 　评价同轴连接器镀金层质量需检测连接器触点表面镀金层的抗磨损能力 , 以防止镀金层磨穿后基底非 贵金属材料暴露 ,在连接器长期使用中发生腐蚀 ,而造成电接触失效. 连接器触点表面硬度 、磨损前后镀金层厚度变化 可以作为连接器镀金层抗磨损能力的参考数据. 使用潮湿二氧化硫单一气体加速腐蚀 ,并配以光学显微镜 、扫描电子 显微镜检测镀金层磨穿的特征点 ,是检测同轴连接器镀金层抗磨损能力的一种较好的方法. 关键词 : 　镀金 ; 磨损 ; 加速腐蚀 ; 同轴连接器 中图分类号 : 　TQ1531+ 8 　　　文献标识码 : 　A 　　　文章编号 : (2006) Inve stigation on Analysis Methods of Wear of Gold Plating on Coaxial Connectors ZHOU Yilin ( ) Automation School , Beijing University of Posts Telecommunications , Beijing 100876, China Abstract : 　To evaluate the quality of gold plating on coaxial connectors ,the wear resistance of gold plating must be tested because the base materials of connectors would be exposed and corroded during applications if the gold plating were worn out ,which would lead to contact failure. The surface hardness of contacts on connectors and the thickness change of gold plating before and af ter mating can be taken as the references for wear resistance ability of gold plating. Single gas (sulfur dioxide) accelerated corrosion joint with the optical microscope and the scanning electronic microscope can disclose the characteristic points where the gold plating are worn out. This is a