摘要
介绍了继电器对触头材料的性能要求和国内外触头材料的研发现状,列举了材料密度、硬度和电阻率等基本物理特性,以及金相的常见检测方法,比较了我国触头材料检测技术与国外的差距,进行了航天继电器用AgSnO2触头的密度、硬度、电阻率及金相检测试验,并对试验结果进行了分析。
The performance requirements on the electrical material for relay,as well as the development status of the electrical material at home and abroad were introduced.Some common testing methods on a few basic physical parameters such as density,hardness,electrical resistivity and metallography were listed.The testing experiments on the AgSnO2 electrical contacts of aerospace relay was did,while the experiment results were analyzed.
出处
《低压电器》
北大核心
2010年第18期1-4,53,共5页
Low Voltage Apparatus
基金
第45批中国博士后科学基金面上资助项目(20090450917)
关键词
继电器
触头
材料检测
relay
contact
material testing
