VERFAHREN ZUR PASSIVIERUNG EINER METALLISCHEN OBERFLÄCHE
    2.
    发明公开
    VERFAHREN ZUR PASSIVIERUNG EINER METALLISCHEN OBERFLÄCHE 审中-公开
    VERFAHREN ZUR PASSIVIERUNG EINER METALLISCHENOBERFLÄCHE

    公开(公告)号:EP3129527A1

    公开(公告)日:2017-02-15

    申请号:EP15712058.5

    申请日:2015-03-21

    申请人: Audi AG

    IPC分类号: C23C22/68 C23C22/22 C25D13/20

    摘要: The invention relates to a method for passivating a metal surface (25) of a light-weight metal part (3), wherein a conversion layer (5) is applied to the surface (25) of the light-weight metal part (3) in a passivation step (P). According to the invention, a passivation step (P) is carried out wherein an aqueous passivation solution is used to create a calcium phosphate-containing conversion layer (5) on the metal surface (25) of the part (3), said conversion layer (5) comprising oxides and hydroxides from the material of the part (3) and from the passivation solution and containing amino acids.

    摘要翻译: 公开了一种用于钝化轻金属部件的金属表面的方法,其中在钝化步骤中将转换层施加到轻质金属部件的表面上。 进行钝化步骤,其中使用水性钝化溶液在该部件的金属表面上产生含磷酸钙的转化层(5),所述转化层包含部分材料和钝化剂的氧化物和氢氧化物 溶液并含有氨基酸。