CAJ | 학술논문

研究AuAgCu电刷与Au镀层在不同载荷和滑动速度条件下的滑动电接触性能,测试两电刷间的接触电压降和电噪声,记录电阻波形,观察电刷和镀层的磨损表面和磨屑形貌.结果表明:接触电压降和电噪声随载荷的增加而降低,随滑动速度的增加而急剧增加.在真空载流条件下,AuAgCu电刷与 Au镀层的磨损过程包括粘着、金由镀层向电刷的转移、磨屑在两接触表面间的滚动以及接触边缘发生的电弧熔融等现象.这种金对金的滑动电接触系统具有较高的可靠性.
연구AuAgCu전쇄여Au도층재불동재하화활동속도조건하적활동전접촉성능,측시량전쇄간적접촉전압강화전조성,기록전조파형,관찰전쇄화도층적마손표면화마설형모.결과표명:접촉전압강화전조성수재하적증가이강저,수활동속도적증가이급극증가.재진공재류조건하,AuAgCu전쇄여 Au도층적마손과정포괄점착、금유도층향전쇄적전이、마설재량접촉표면간적곤동이급접촉변연발생적전호용융등현상.저충금대금적활동전접촉계통구유교고적가고성.
The sliding electrical contact behavior of AuAgCu brush on Au plating was investigated at various normal loads and sliding speeds. The contact voltage drop and electrical noise between the two brushes were measured and the resistance waveforms were recorded. The morphologies of the worn surfaces and wear debris of the brush and plating were observed. The results show that the contact voltage drop and electrical noise decrease with the addition of load whereas increase drastically with increasing sliding speed. With the electrical current in vacuum, the wear process of AuAgCu brush on Au plating involves adhesion, transfer of gold from the plating to the brush, rolling of wear debris between contact surfaces and arc-induced melt at the contact edge, and this gold-on-gold sliding electrical contact system is reliable within experiment period.