公开(公告)号：US3928157A

公开(公告)日：1975-12-23

申请号：US35753473

申请日：1973-05-07

申请人： SHINTO PAINT CO LTD

发明人： SUEMATSU YASUO ,  MIYAZAKI RYUHEI ,  KUBO MITSUYASU ,  UOTANI TSUYOSHI ,  UCHIDA HIRONORI

IPC分类号： C09D5/44 ,  C25D13/06 ,  C25D13/20

CPC分类号： C09D5/4488 ,  Y10S205/917

摘要： A method for treating a chromium-plated surface is provided characterized by the fact that a chromium-plated article is dipped as the cathode in a water-soluble or water-dispersible resin solution or dispersion prepared by diluting with water a resin salt of at least one synthetic polyamino resin with a water-soluble organic acid and/or a water-soluble inorganic acid, and then passing a direct current in the range of 10 - 300 volts through the aqueous bath so that there is formed a resin film on the chromium plated surface the chromium-plated surface is pretreated prior to the resin coating step by anodization in aqueous chromate solution or by heat treatment so that the surface electrode potential is greater than -0.42 volts.

摘要翻译： 提供一种处理镀铬表面的方法，其特征在于将镀铬制品作为阴极浸渍在水溶性或水分散性树脂溶液或通过用水稀释制备的分散体中，所述分散体至少 一种具有水溶性有机酸和/或水溶性无机酸的合成聚氨基树脂，然后通过水浴使直流电流在10-300伏范围内，使得在铬上形成树脂膜 镀层的表面在树脂涂覆步骤之前通过在铬酸水溶液中阳极氧化或通过热处理进行预处理，使得表面电极电位大于-0.42伏特。