Solution for Reducing the Blackening or Tarnishing of a Metal Sheet and Metal Sheet
    3.
    发明申请
    Solution for Reducing the Blackening or Tarnishing of a Metal Sheet and Metal Sheet 审中-公开
    减少金属板和金属板的黑化或变色的方法

    公开(公告)号:US20150093594A1

    公开(公告)日:2015-04-02

    申请号:US14371642

    申请日:2012-01-01

    IPC分类号: C25D11/34 C25D5/48

    摘要: The present invention provides an aqueous treatment solution containing sulfate ions SO42− in a concentration greater than or equal to 0.01 mol/l, to treat sheet metal including a steel substrate coated on at least one face with a coating including at least zinc and magnesium to reduce blackening or tarnishing of the sheet metal during storage. The present invention also provides a sheet metal treated with a solution of this type.

    摘要翻译: 本发明提供一种含有浓度大于或等于0.01mol / l的硫酸根离子SO42-的含水处理溶液,以处理包括至少涂覆在至少一个面上的钢基材的金属片,所述涂层至少包括锌和镁的涂层, 在储存期间减少金属板的变黑或变色。 本发明还提供了用这种溶液处理的金属片。