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    • 49. 发明申请
    • ROLLER ELECTRODES FOR ELECTRIC-RESISTANCE WELDING MACHINE
    • 用于电阻焊机的滚轮电极
    • WO1988009574A2
    • 1988-12-01
    • PCT/EP1988000413
    • 1988-05-11
    • SOUDRONIC AG
    • SOUDRONIC AGDAVIES, Joseph, R.
    • H01R39/64
    • C22C28/00B23K11/063B23K11/3045H01R39/646
    • An improved roller electrode for use in electric-resistance welders has relatively rotatable components (38, 40) separated by very small gaps (51, 52), and a liquid contained in the gaps. Said liquid is nontoxic, and is highly conductive, both electrically and thermally, and is of a composite eutectic mixture of appproximately 61% Ga, 25% In, 13% Sn, and 1% Zn, by weight. A protective coating having a thickness between 0.0025 and 0.025 mm is plated on said surfaces of at least one of the components (38, 40), and is gold and/or a material from the platinum family, such as rhodium (Rh). Coolant is circulated through one of the components (38, 40), and the conductive liquid cools the other component. The rotor component (40) may be formed of a sintered mixture of copper (Cu) and tungsten (W).
    • 用于电阻焊接机的改进的辊式电极具有相对较小且间隔开的旋转元件(38,40)(51,52)和容纳在间距中的液体。 该液体是无毒的,并且具有导电性和导电性,并且由约61%Ga,25%In,13%Sn和1%Zn的复合低共熔混合物组成。 ,按重量计。 厚度在0.0025和0.025mm之间的保护涂层沉积在至少一个元件(38,40)的所述表面上,并且由金和/或铂族材料 如铑(Rh)。 冷却液流过其中一个元件(38,40),导电液体冷却另一个元件。 转子元件(40)可以由铜(Cu)和钨(W)的烧结混合物形成。