Organic coated material having an electrolytically polymerized coating
film containing chromium and method
    1.
    发明授权
    Organic coated material having an electrolytically polymerized coating film containing chromium and method 失效
    具有含铬电解聚合涂膜的有机涂层材料及方法

    公开(公告)号:US5997714A

    公开(公告)日:1999-12-07

    申请号:US739943

    申请日:1996-10-30

    CPC分类号: C25D11/38 C09D5/4476

    摘要: The invention provides a material coated with an organic film which exhibits excellent corrosion resistance and lacquer adhesion. The invention includes an electroconductive substrate coated with an electrolytically polymerized coating film containing chromium. Particularly, a zinc-type plated steel sheet coated with an electrolytically polymerized coating film containing chromium in accordance with the invention is well suited for application in vehicle bodies. The invention further provides a method of making a material coated with an organic film which involves forming organic coating material containing chromium on an electroconductive substrate acting as an electrode by electrolytically polymerizing an organic monomer in an electrolyte solution containing chromium. The method provides a monolithic composite structure comprising chromium compounds and an organic coating film, and avoid the problems associated with passivation after chromium plating of steel. The method of the invention can also reduce processing by two-thirds in relation to conventional methods.

    摘要翻译: 本发明提供涂覆有有机膜的材料,其表现出优异的耐腐蚀性和漆粘附性。 本发明包括涂覆有包含铬的电解聚合涂膜的导电基材。 特别地,根据本发明涂覆有含铬的电解聚合涂膜的锌电镀钢板非常适用于车体。 本发明还提供一种制造涂覆有机膜的材料的方法,该方法涉及通过在含铬的电解液中电解聚合有机单体,在作为电极的导电性基体上形成含有铬的有机涂层材料。 该方法提供了包含铬化合物和有机涂膜的整体复合结构,并避免了镀铬后钝化相关的问题。 本发明的方法还可以将传统方法的处理减少三分之二。

    Method of producing zinc-chromium alloy plated steel sheet with
excellent plating adhesiveness
    3.
    发明授权
    Method of producing zinc-chromium alloy plated steel sheet with excellent plating adhesiveness 失效
    生产镀锌钢板的优良镀层粘合性的方法

    公开(公告)号:US5273643A

    公开(公告)日:1993-12-28

    申请号:US46764

    申请日:1993-04-13

    CPC分类号: C25D3/565

    摘要: The present invention provides a method of producing a zinc-chromium alloy-plated steel sheet having excellent properties such as bare corrosion resistance, corrosion resistance after coating, plating adhesiveness and weldability.The method is characterized by plating the surface of the steel sheet using an acid plating bath containing zinc ion (Zn.sup.2+) and chromium ion (Cr.sup.3+) at a molar concentration ratio of about 0.1.ltoreq.Cr.sup.3+ /(Zn.sup.3+ +Cr.sup.3+).ltoreq.0.9 in a total amount of at least about 0.5 mol/1 within the dissolution range, and about 0.1 to 30 g/1 of at least one nonionic organic additive having at least a triple bond, at a bath temperature of about 25.degree. to 70.degree. C. and a pH of about 1.0 to 4.0 with a current density of about 50 to 200 A/dm.sup.2.

    摘要翻译: 本发明提供一种具有耐腐蚀性,涂层耐蚀性,电镀粘合性和焊接性等优异性能的镀锌 - 铬合金镀覆钢板的方法。 该方法的特征在于,使用含有约0.1 Cr 3+ /(Zn 3+ ++ Cr 3+)摩尔浓度的锌离子(Zn 2+)和铬离子(Cr 3+)的酸性电镀电镀钢板的表面, 在溶解范围内的总量为至少约0.5mol / l的0.9,以及约0.1至30g / l的至少一种具有至少三重键的非离子有机添加剂,在浴温为约25℃至 70℃,pH为约1.0至4.0,电流密度为约50至200A / dm 2。