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    MOLTEN Al-Zn-Mg-Si-PLATED STEEL SHEET AND MANUFACTURING METHOD THEREFOR
    1.
    发明公开
    MOLTEN Al-Zn-Mg-Si-PLATED STEEL SHEET AND MANUFACTURING METHOD THEREFOR 审中-公开
    熔铸铝锌锰镁硅钢片及其制造方法

    公开(公告)号：EP3266900A1

    公开(公告)日：2018-01-10

    申请号：EP16759061.1

    申请日：2016-03-02

    申请人： JFE Galvanizing&coating Co., Ltd ,  JFE Steel Corporation

    发明人： OOI, Toshihiko ,  SATO, Yohei ,  TOBIYAMA, Yoichi ,  OKUMA, Toshiyuki ,  FURUTA, Akihiko ,  YOSHIDA, Masahiro ,  SUZUKI, Yoshitsugu ,  ANDO, Satoru ,  MATSUZAKI, Akira

    IPC分类号： C23C2/12 ,  C22C18/04 ,  C22C21/10 ,  C22C30/06 ,  C23C2/28

    CPC分类号： C23C2/06 ,  C22C18/04 ,  C22C21/10 ,  C22C30/06 ,  C23C2/12 ,  C23C2/28

    摘要： Provided is a hot-dip Al-Zn-Mg-Si coated steel sheet having good corrosion resistance in flat parts and edge parts, and also having excellent worked part corrosion resistance. The hot-dip Al-Zn-Mg-Si coated steel sheet includes a base steel sheet and a hot-dip coating on a surface of the base steel sheet. The hot-dip coating includes an interfacial alloy layer present at an interface with the base steel sheet and a main layer present on the interfacial alloy layer, and contains from 25 mass% to 80 mass% of Al, from greater than 0.6 mass% to 15 mass% of Si, and from greater than 0.1 mass% to 25 mass% of Mg. The Mg content and Si content in the hot-dip coating satisfy formula (1): M Mg / M Si − 0.6 > 1.7 where M Mg represents the Mg content (mass%) and M Si represents the Si content (mass%).

    摘要翻译： 本发明提供一种在平坦部和端部具有良好的耐腐蚀性的热浸镀Al-Zn-Mg-Si系钢板，并且还具有优异的加工部耐腐蚀性。 热浸镀Al-Zn-Mg-Si系钢板包含母材钢板和母材钢板表面的热浸镀层。 热浸镀膜包括存在于与母材钢板的界面处的界面合金层和存在于界面合金层上的主层，并且包含25质量％至80质量％的Al，大于0.6质量％至 15质量％的Si和大于0.1质量％至25质量％的Mg。 热浸涂层中的Mg含量和Si含量满足式（1）：MMg / MSi-0.6> 1.7，其中MMg表示Mg含量（质量％），MSi表示Si含量（质量％）。

    HOT-DIP Zn-Al ALLOY COATED STEEL SHEET AND PROCESS FOR THE PRODUCTION THEREOF
    3.
    发明公开
    HOT-DIP Zn-Al ALLOY COATED STEEL SHEET AND PROCESS FOR THE PRODUCTION THEREOF 有权
    FEUERVERZINKTES STAHLBLECH AUS Zn-AI-LEGIERUNG UND HERSTELLUNGSVERFAHRENDAFÜR

    公开(公告)号：EP2088219A1

    公开(公告)日：2009-08-12

    申请号：EP07831870.6

    申请日：2007-11-08

    申请人： JFE Galvanizing&Coating Co., Ltd. ,  JFE Steel Corporation

    发明人： KOUMURA, Hideo ,  FURUTA, Akihiko ,  FURUYA, Yoshito ,  OGISHI, Hideo ,  SATOH, Susumu ,  UMEBAYASHI, Rie ,  ANDO, Satoru ,  TAKANO, Shigeru

    IPC分类号： 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下冷却至250℃ 速率为1°C至15°C / sec。