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    • 10. 发明公开
    • ZINC-NICKEL ELECTROPLATING
    • ZINK镍ELEKTROPLATTIERUNG
    • EP1292724A4
    • 2004-09-08
    • EP00951046
    • 2000-06-15
    • TASKEM INC
    • FRISCHAUF ROBERT EECKLES WILLIAM E
    • C25D3/56C25D17/10
    • C25D17/10C25D3/565
    • The present invention relates to an apparatus (12) for applying a zinc-nickel electroplate to a workpiece. The apparatus comprises a zinc-nickel electroplating bath (16) comprising an amine additive, such as poly(alkyleneimine), which is capable of being oxidized in the bath to cyanides. The bath has a pH more than about 14. A cathode workpiece (18) is positioned in the bath. An anode assembly (20) is also positioned in the bath. The anode assembly comprises an enclosure (22) defining an anolyte compartment (24), at least a portion of the enclosure being an ion exchange membrane (26). An anolyte (28) is positioned in the compartment. An insoluble metal anode (30) is immersed in the anolyte. The anolyte is a conductive salt or base solution and the anode is a metal or metal coating selected from the group consisting of nickel, cobalt, iron, chromium and alloys thereof.
    • 本发明涉及一种用于将锌镍电镀板施加到工件上的装置(12)。 该装置包括锌镍电镀浴(16),其包含胺添加剂,例如聚(亚烷基亚胺),其能够在浴中被氧化成氰化物。 浴的pH值大于约14.阴极工件(18)位于浴中。 阳极组件(20)也位于浴中。 阳极组件包括限定阳极电解液室(24)的外壳(22),外壳的至少一部分是离子交换膜(26)。 阳极电解液(28)位于隔室中。 将不溶性金属阳极(30)浸渍在阳极电解液中。 阳极电解液是导电盐或碱溶液,阳极是选自镍,钴,铁,铬及其合金的金属或金属涂层。