申请人:KABUSHIKI KAISHA KOBE SEIKO SHO
also known as Kobe Steel Ltd.
公开号:EP0558837A1
公开(公告)日:1993-09-08
A resin-coated steel sheet having good electrocoatability and weldability, characterized in that the resin coating is formed on the layer of zinc plating or zinc alloy plating (with or without subsequent chromate treatment) and is composed mainly of urethane resin containing (a) either colloidal silica or a silane coupling agent and (b) a phosphate of Al, Ba, Ca, Co, Fe, Mg, Mn or Zn in an amount of 0.01-35 wt% (with or without an additional organic pigment fine powder in an amount of 0.01-40 wt%).
一种具有良好电镀性和焊接性的树脂涂层钢板,其特征在于树脂涂层是在镀锌层或锌合金镀层上形成的(无论随后是否进行铬酸盐处理),主要由聚氨酯树脂组成,其中含有(a)胶体二氧化硅或硅烷偶联剂和(b)Al、Ba、Ca、Co、Fe、Mg、Mn 或 Zn 的磷酸盐,含量为 0.01-35 wt%的磷酸铝、钡、钙、钴、铁、镁、锰或锌(含或不含 0.01-40 wt%的额外有机颜料细粉)。