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    Method for activating metal surfaces to be phosphated
    1.
    发明授权
    Method for activating metal surfaces to be phosphated 有权

    公开(公告)号：US10480080B2

    公开(公告)日：2019-11-19

    申请号：US15302365

    申请日：2015-04-07

    申请人： ThyssenKrupp Steel Europe AG ,  ThyssenKrupp AG

    发明人： Fabian Junge ,  Gregor Müller ,  Nicole Weiher ,  Heinrich Meyring ,  Frank Panter

    IPC分类号： C23C22/78 ,  C23C22/07 ,  C23C22/80 ,  C23C18/30 ,  C23F17/00 ,  C25D3/22

    摘要： A method of activating a metal surface, such as a galvanized steel sheet, before a phosphating process, may involve bringing the metal surface into contact with an activating bath containing activating particles, which may be based on phosphate and/or titanium, dispersed in water. To alleviate or even eliminate the problems of poor adhesion of surface coatings to preferably electrolytically galvanized, phosphated metal strip, an additive that suppresses or at least slows agglomeration of the activating particles may be added to the activating bath. In some examples, polyethylene glycol (PEG) and/or sodium stearate may be added. Further, the particle size distribution of the activating particles present in the activating bath may be determined and the activating bath may be replaced or taken out of operation as a function of the particle size distribution of the activating particles.

    METHOD FOR ACTIVATING METAL SURFACES TO BE PHOSPHATED
    2.
    发明申请
    METHOD FOR ACTIVATING METAL SURFACES TO BE PHOSPHATED 审中-公开
    用于激活待磷化金属表面的方法

    公开(公告)号：US20170029954A1

    公开(公告)日：2017-02-02

    申请号：US15302365

    申请日：2015-04-07

    申请人： ThyssenKrupp Steel Europe AG ,  ThyssenKrupp AG

    发明人： Fabian Junge ,  Gregor Müller ,  Nicole Weiher ,  Heinrich Meyring ,  Frank Panter

    IPC分类号： C23C22/80 ,  C23F17/00 ,  C25D3/22 ,  C23C22/07

    摘要： A method of activating a metal surface, such as a galvanized steel sheet, before a phosphating process, may involve bringing the metal surface into contact with an activating bath containing activating particles, which may be based on phosphate and/or titanium, dispersed in water. To alleviate or even eliminate the problems of poor adhesion of surface coatings to preferably electrolytically galvanized, phosphated metal strip, an additive that suppresses or at least slows agglomeration of the activating particles may be added to the activating bath. In some examples, polyethylene glycol (PEG) and/or sodium stearate may be added. Further, the particle size distribution of the activating particles present in the activating bath may be determined and the activating bath may be replaced or taken out of operation as a function of the particle size distribution of the activating particles.”

    摘要翻译： 在磷化工艺之前激活金属表面如镀锌钢板的方法可能涉及使金属表面与含有分散在水中的基于磷酸盐和/或钛的活化颗粒的活化浴接触 。 为了减轻或甚至消除表面涂层对优选电解镀锌磷化金属条的粘附性差的问题，可以向活化浴中加入抑制或至少减缓活化颗粒附聚的添加剂。 在一些实例中，可以加入聚乙二醇（PEG）和/或硬脂酸钠。 此外，可以确定存在于活化浴中的活化颗粒的粒度分布，并且活化浴可以作为活化颗粒的粒度分布的函数被替换或者取消操作。