Surface-treated galvanized steel sheet with superior flat-portion corrosion resistance, blackening resistance, and appearance and corrosion resistance after press forming and aqueous surface-treatment liquid for galvanized steel sheet
    5.
    发明申请
    Surface-treated galvanized steel sheet with superior flat-portion corrosion resistance, blackening resistance, and appearance and corrosion resistance after press forming and aqueous surface-treatment liquid for galvanized steel sheet 有权
    表面处理镀锌钢板,具有优异的平坦部分耐腐蚀性,耐黑变性,压制成型后的外观和耐腐蚀性以及镀锌钢板的水性表面处理液

    公开(公告)号:US20100035055A1

    公开(公告)日:2010-02-11

    申请号:US12311383

    申请日:2007-12-10

    IPC分类号: B32B15/04 B05D3/02 C08K3/10

    摘要: An aqueous surface-treatment liquid is a treatment liquid containing a water-soluble zirconium compound, water-dispersive particulate silica, a silane coupling agent, a vanadic acid compound, a phosphoric acid compound, a nickel compound, and an acrylic resin emulsion in particular proportions. A surface-treated galvanized steel sheet produced using the treatment liquid is a galvanized steel sheet having a surface-treatment coating on a surface thereof, and the coating contains a zirconium compound, particulate silica, a silane-coupling-agent-derived component, a vanadic acid compound, a phosphoric acid compound, a nickel compound, and an acrylic resin in particular proportions. The amount of coating on a zirconium basis is 10 to 200 mg/m2. This surface-treated galvanized steel sheet is chromate-free and has superior flat-portion corrosion resistance, blackening resistance, and appearance and corrosion resistance after press forming.

    摘要翻译: 水性表面处理液是特别是含有水溶性锆化合物,水分散性微粒二氧化硅,硅烷偶联剂,钒酸化合物,磷酸化合物,镍化合物,丙烯酸树脂乳液的处理液 比例。 使用处理液制造的表面处理镀锌钢板是其表面具有表面处理涂层的镀锌钢板,该涂层含有锆化合物,颗粒状二氧化硅,硅烷偶联剂衍生成分, 钒酸化合物,磷酸化合物,镍化合物和丙烯酸树脂。 锆的涂布量为10〜200mg / m 2。 这种经表面处理的镀锌钢板是无铬酸盐的,并且具有优异的平坦部分耐腐蚀性,耐黑变性,以及压制成型后的外观和耐腐蚀性。

    Hot-dip Zn—Al alloy coated steel sheet and producing method therefor
    10.
    发明授权
    Hot-dip Zn—Al alloy coated steel sheet and producing method therefor 有权
    热浸Zn-Al合金涂层钢板及其制备方法

    公开(公告)号:US08962153B2

    公开(公告)日:2015-02-24

    申请号:US12441604

    申请日:2007-11-08

    IPC分类号: B32B15/01 C23C2/06

    CPC分类号: C23C2/06 Y10T428/12799

    摘要: A hot-dip Zn—Al alloy coated steel sheet exhibiting a beautiful coating appearance with metallic luster, in which no spangle or very fine spangles are formed, and having excellent blackening resistance and a method for manufacturing the hot-dip Zn—Al alloy coated steel sheet are provided. The hot-dip Zn—Al alloy coated steel sheet includes a hot-dip Zn—Al alloy coating layer containing 1.0 to 10 percent by mass of Al, 0.2 to 1.0 percent by mass of Mg, 0.005 to 0.1 percent by mass of Ni, and the balance being Zn and incidental impurities on at least one surface of a steel sheet. The manufacturing method includes the steps of dipping the steel sheet into a hot-dip Zn—Al alloy coating bath and pulling up and cooling the steel sheet, wherein the steel sheet pulled up from the coating bath is cooled to 250° C. at a cooling rate of 1° C. to 15° C./sec.

    摘要翻译: 具有金属光泽的美观涂层外观的热浸Zn-Al合金涂层钢板,其中没有形成条纹或非常细的波纹,并且具有优异的耐黑变性,以及涂覆的热浸Zn-Al合金的制造方法 提供钢板。 热浸镀Zn-Al合金涂层钢板包括含有1.0〜10质量%的Al,0.2〜1.0质量%的Mg,0.005〜0.1质量%的Ni的热浸Zn-Al合金被膜, 余量为钢板的至少一个表面上的Zn和附带的杂质。 该制造方法包括以下步骤:将钢板浸入热浸Zn-Al合金涂层中并拉起和冷却钢板,其中从涂浴中拉出的钢板在 冷却速度为1℃至15℃/秒。