Process for the electrolytic zinc coating of stainless steel
    1.
    发明授权
    Process for the electrolytic zinc coating of stainless steel 失效
    不锈钢电解锌涂层工艺

    公开(公告)号:US5246563A

    公开(公告)日:1993-09-21

    申请号:US815612

    申请日:1992-01-07

    IPC分类号: C25D3/22 C25D5/50

    CPC分类号: C25D3/22 C25D5/50

    摘要: In a process for the electrolytic zinc coating of high-grade steel on one and two sides, the latter is connected as a cathode in the form of a high-grade steel strip in a galvanic cell, and metallic zinc is deposited on the high-grade steel strip from an aqueous solution of a zinc salt with a pH value of 1.0 to 2.5, preferably 1.5 to 2.0, as a result of which a contact corrosion with zinc-coated metal sheet is avoided, which is particularly important in the motor-car industry.

    摘要翻译: 在一侧和两侧的高级钢的电解锌涂层的过程中,后者作为阴极以高级钢带的形式连接在原电池中,并且金属锌沉积在高温钢板上, 从锌盐的水溶液中的pH值为1.0至2.5,优选为1.5至2.0的钢级钢带,结果避免了与镀锌金属片材的接触腐蚀,这在电机 - 汽车行业。

    Process for the electrolytical coating of an object of steel on one or
both sides
    2.
    发明授权
    Process for the electrolytical coating of an object of steel on one or both sides 失效
    在一侧或两侧的钢的电解电镀方法

    公开(公告)号:US5637205A

    公开(公告)日:1997-06-10

    申请号:US146128

    申请日:1993-12-20

    CPC分类号: C25D21/14 C25D3/22 C25D3/565

    摘要: The invention describes a process for the electrolytical coating of an object of steel on one or both sides. Preferably, the object is a steel strip with zinc or a zinc iron alloy. Zinc or a zinc iron alloy is deposited on the object when the object is connected to form the cathode of a galvanic cell in an aqueous solution of zinc chloride and iron chloride with a pH of 0.1 to 3.0. The zinc chloride solution has a concentration of 50 to 1000 g/l for the deposition of metallic zinc. A partial flow of electrolyte solution is past continuously into a column filled with metallic zinc, where the trivalent iron formed there during the electrolysis is reduced to a bivalent iron, and metallic zinc is dissolved simultaneously therewith. The invention also describes an apparatus for the electrolytical coating of an object of steel.

    摘要翻译: PCT No.PCT / AT92 / 00068 Sec。 371日期:1993年12月20日 102(e)日期1993年12月20日PCT提交1992年5月13日PCT公布。 出版物WO92 / 20839 日期:1992年11月26日本发明描述了在一侧或两侧上对钢材进行电解涂覆的方法。 优选地,该目的是具有锌或锌铁合金的钢带。 当物体连接以形成氯化锌和氯化铁水溶液中的原电池的阴极,pH为0.1至3.0时,锌或锌铁合金沉积在物体上。 氯化锌溶液的沉积金属锌浓度为50〜1000g / l。 电解液的部分流动连续地流入填充有金属锌的柱中,其中在电解过程中形成的三价铁还原为二价铁,金属锌同时溶解。 本发明还描述了一种用于钢的物体的电解涂覆的装置。

    Process for the electrolytic pickling of high-grade steel strip
    3.
    发明授权
    Process for the electrolytic pickling of high-grade steel strip 失效
    高档钢带电解酸洗工艺

    公开(公告)号:US5022971A

    公开(公告)日:1991-06-11

    申请号:US406342

    申请日:1989-09-13

    IPC分类号: C25F1/06

    CPC分类号: C25F1/06

    摘要: In a process for the electrolytic pickling of a high-grade steel strip, in particular a hot strip of high-grade steel, the hot strip of high-grade steel is alternately anodically and cathodically pickled in an aqueous solution of Na.sub.2 SO.sub.4 and subsequently in an aqueous solution of NaNO.sub.3 and NaF, as a result of which the formation of dangerous nitrous gases is prevented.

    摘要翻译: 在用于高品位钢带,特别是高品位钢带的电解酸洗的方法中,高品位钢的热带交替地在Na 2 SO 4水溶液中阳极和阴极酸洗,随后在 NaNO 3和NaF的水溶液,结果防止形成危险的亚硝酸气体。