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公开(公告)号:US4497668A
公开(公告)日:1985-02-05
申请号:US554879
申请日:1983-11-25
申请人: Raschad Mady , Winand Hanelt , Roland Morlock , Dieter Geruhn , Lutz Leyhe , Jobst H. Meyer zu Bexten , Franz Ricke
发明人: Raschad Mady , Winand Hanelt , Roland Morlock , Dieter Geruhn , Lutz Leyhe , Jobst H. Meyer zu Bexten , Franz Ricke
摘要: A process for phosphating zinc-plated metal articles, particularly electrolytically zinc-plated steel sheets, by treatment thereof for a short period with an acidic phosphating solution which, in addition to zinc and phosphate ions, can contain other metal cations and/or anions of oxygen-containing acids having an accelerating effect, wherein the phosphating solution has a content of Zn.sup.2+ -cations of between about 1 and 2.5 g/l, a free acid content in the range from 0.8 to 3 points, and the acid ratio of total acid to free acid in the range from 5 to 10. The phosphating treatment is carried out for a period of time not in excess of about 5 seconds.
摘要翻译: 一种通过用酸性磷酸盐溶液处理短时间的镀锌金属制品,特别是电解镀锌钢板的方法,除了锌和磷酸根离子之外,还可以含有其它金属阳离子和/或阴离子 具有促进作用的含氧酸,其中磷酸盐化合物的Zn 2+离子含量在约1至2.5g / l之间,游离酸含量在0.8至3个点之间,而酸的酸的比例 游离酸在5至10的范围内。磷化处理进行不超过约5秒的时间。