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1. 发明授权

US4023266A Process for preparing liquid metal electrical contact device 失效
标题翻译：制备液态金属电接触装置的方法
公开(公告)号：US4023266A
公开(公告)日：1977-05-17
申请号：US708658
申请日：1976-07-26
申请人： Robert R. Lovell , Frank D. Berkopec , David H. Culp
发明人： Robert R. Lovell , Frank D. Berkopec , David H. Culp
IPC分类号： H01R39/64 , H01R43/10 , H01R43/00
CPC分类号： H01R43/10 , H01R39/646 , Y10T29/49011 , Y10T29/49105 , Y10T29/49213
摘要： In a process or method according to the invention the parts of an electrical contact device, such as a slip ring comprising the ring to receive the liquid metal and the probe or brush for contacting the liquid metal are treated by sputter etching to remove the parent metal oxide. Prior to exposure of the electrodes to any oxygen, a sacrificial metal is sputter deposited on the parts. Preferably this sacrificial metal is one that oxidizes slowly and is readily dissolved by the liquid metal. The sacrificial metal may then be removed from unwanted areas. The remainder of the ring and the probe to be wet by the liquid metal are submerged in the liquid metal or the liquid metal is flushed over these areas, preferably while they are being slightly abraded, until all the sacrificial material on these portions is wet by the liquid metal. In doing so the liquid metal dissolves the sacrificial metal and permanently wets the parent metal. Preferred materials used in the process and for the electrodes of electrical contact devices are high purity (99.0%) nickel or AISI type 304 stainless steel for the electrical contact devices, gallium as the liquid metal, and gold as the sacrificial material.
摘要翻译：在根据本发明的方法或方法中，通过溅射蚀刻来处理电接触装置的部件，例如包括用于接收液态金属的环和用于接触液态金属的探针或刷子的滑环，以除去母体金属氧化物。在将电极暴露于任何氧气之前，牺牲金属被溅射沉积在部件上。优选地，该牺牲金属是缓慢氧化并且容易被液态金属溶解的牺牲金属。然后可以将牺牲金属从不需要的区域移除。其余的由液态金属湿润的环和探针浸没在液态金属中，或者液体金属被冲洗在这些区域上，优选在稍微磨损的同时，直到这些部分上的所有牺牲材料被液态金属。在这样做时，液态金属溶解牺牲金属并永久润湿母体金属。在该方法和电接触装置的电极中使用的优选材料是用于电接触装置的高纯度（99.0％）镍或AISI型304不锈钢，作为液体金属的镓和作为牺牲材料的金。

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