Corrosion-resistant surface-coated steel sheet
    1.
    发明授权
    Corrosion-resistant surface-coated steel sheet 失效
    耐腐蚀表面涂层钢板

    公开(公告)号:US5330850A

    公开(公告)日:1994-07-19

    申请号:US997666

    申请日:1992-12-28

    摘要: A surface-coated steel sheet having improved corrosion resistance and suitable for use as automobile inner and outer panels comprises a steel sheet having on at least one surface thereof a composite coating which comprises the following layers (a) to (d) from the bottom to the top of the coating:(a) a first zinc alloy plating layer with a coating weight of 10-100 g/m.sup.2 which contains at least one of Ni and Co in an amount satisfying the following inequality:0.05.ltoreq.(5.times.Co)+Ni.ltoreq.10 (in weight percent),(b) a second zinc alloy plating layer with a coating weight of 0.05-10 g/m.sup.2 which contains at least one of Ni and Co in an amount satisfying the following inequality:10

    摘要翻译: 具有改进的耐腐蚀性并适合用作汽车内外板的表面涂覆钢板包括在至少一个表面上具有复合涂层的钢板,该复合涂层包括从底部到(d)的以下层(a)至(d) 涂层的顶部:(a)涂层重量为10-100g / m 2的第一锌合金镀层,其含有满足以下不等式的量的Ni和Co中的至少一种:0.05 <=(5×Co) + Ni <10(重量%),(b)涂层重量为0.05-10g / m 2的第二锌合金镀层,其含有满足以下不等式的量的Ni和Co中的至少一种:10 <(5×Co)+ Ni <40(重量百分比),(c)铬的涂层重量为20-300mg / m 2的铬酸盐膜层,(d)厚度为0.2的有机涂层 -5亩。

    Apparatus for continuously electroplating on only a single surface of
running metal strip
    2.
    发明授权
    Apparatus for continuously electroplating on only a single surface of running metal strip 失效
    用于仅在运行中的金属条的单个表面上连续电镀的装置

    公开(公告)号:US4102772A

    公开(公告)日:1978-07-25

    申请号:US783024

    申请日:1977-03-30

    IPC分类号: C25D7/06 C25D17/00 C25D5/02

    CPC分类号: C25D7/0614

    摘要: In a horizontal-type electroplating apparatus which includes a tank containing an electroplating bath for electroplating onto a single surface of running metal strip, the tank including anodes therein which have a width substantially equal to the width of the strip which passes through the tank, the apparatus also including an electric insulator sheet positioned in contacting relation to the upper surface of the strip which is opposite to the lower surface facing the anodes, the improvement wherein a nozzle for supplying the electroplating solution to the bath in the tank is provided at the bottom of the tank and is oriented to discharge the solution towards the lower surface of the running strip; wherein gas-jet nozzles are positioned to discharge gas towards the zones of the upper surface of the strip which are not contacted by the integral insulator sheet; and wherein an overflow device is provided along the side of the tank to control the level of the plating solution substantially equal to the level of the pass-line of the strip as it runs through the tank; each of these improvements acting to minimize the plating onto the opposite surface which is not to be plated.

    摘要翻译: 在一种水平式电镀设备中,该电镀设备包括一个容纳电镀浴的电镀槽,该电镀槽用于电镀在一个运行中的金属条的一个表面上,该罐包括其中的阳极,其宽度基本上等于通过该槽的带的宽度, 该设备还包括一个电绝缘片,其位于与该条的上表面接触的位置,该电绝缘片位于面向阳极的下表面的相对面上,其改进在于,其底部提供用于将电镀溶液供应到槽中的槽的喷嘴 并且被定向成将溶液朝向运行条的下表面排出; 其中气体喷嘴被定位成将气体朝向不与一体绝缘体片接触的带的上表面的区域排出; 并且其中沿着所述罐的侧面设置溢流装置,以控制所述镀液的水平基本上等于所述带材在通过所述罐时的所述通过线的水平; 这些改进中的每一个都将电镀最小化到不被镀覆的相对表面上。

    Steel sheet with multilayer electroplating and method of producing same
    6.
    发明授权
    Steel sheet with multilayer electroplating and method of producing same 失效
    具有多层电镀的钢板及其制造方法

    公开(公告)号:US4490438A

    公开(公告)日:1984-12-25

    申请号:US463240

    申请日:1983-02-02

    IPC分类号: C25D5/10

    摘要: A steel sheet with two or more coatings and a method of producing the same are disclosed. The steel sheet has on at least one side a discontinuous surface layer of an Fe or Fe--Zn base alloy, preferably an Fe--Zn base alloy electrodeposit containing Sn in an amount of 0.01 to 50 mg/m.sup.2, usually in an amount of 1.0 to 50 mg/m.sup.2, preferably in an amount of 3.0 to 30 mg/m.sup.2, and also 5 to 50% by weight of Zn in case Fe--Zn alloy is used, and a layer of Zn--Ni or Zn--Fe alloy electrodeposit, which lies directly under said discontinuous surface layer.

    摘要翻译: 公开了具有两种或更多种涂层的钢板及其制造方法。 钢板的至少一侧具有Fe或Fe-Zn基合金的不连续表面层,优选含有0.01〜50mg / m 2的Sn的Fe-Zn基合金电沉积物,通常为1.0 在使用Fe-Zn合金的情况下,为50mg / m 2,优选为3.0〜30mg / m 2,还含有5〜50重量%的Zn,Zn-Ni或Zn-Fe合金电沉积层 ,其位于所述不连续表面层的正下方。

    Electrolytic zinc-nickel alloy plating
    7.
    发明授权
    Electrolytic zinc-nickel alloy plating 失效
    电解锌镍合金电镀

    公开(公告)号:US4249999A

    公开(公告)日:1981-02-10

    申请号:US130184

    申请日:1980-03-13

    IPC分类号: C25D3/56

    CPC分类号: C25D3/565

    摘要: A steel strip is electrolytically plated with a Zn-Ni alloy in an electrolyte both containing Zn.sup.2+ and Ni.sup.2+ ions together with a strontium compound in an amount of 0.05-10 g/l, calculated as SrSO.sub.4 is disclosed.

    摘要翻译: 钢带在包含Zn 2+和Ni 2+离子的电解质中与Zn-Ni合金一起电镀,其中锶化合物的量为0.05-10g / l,以SrSO 4计算。