公开(公告)号：US20150093594A1

公开(公告)日：2015-04-02

申请号：US14371642

申请日：2012-01-01

申请人： ARCELORMITTAL INVESTIGACIÓN Y DESARROLLO, S.L.

发明人： Daniel Chaleix ,  Christian Allely ,  Maxime Monnoyer ,  Pascale Feltin

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。