Zn-Al-Mg-Si-alloy plated steel product having excellent corrosion resistance and method for preparing the same
    31.
    发明授权
    Zn-Al-Mg-Si-alloy plated steel product having excellent corrosion resistance and method for preparing the same 有权
    具有优异耐腐蚀性的Zn-Al-Mg-Si合金电镀钢产品及其制备方法

    公开(公告)号:US06635359B1

    公开(公告)日:2003-10-21

    申请号:US10049360

    申请日:2002-02-08

    IPC分类号: B32B1520

    摘要: A Zn—Al—Mg—Si alloy-plated steel material with excellent corrosion resistance, characterized by comprising, in terms of wt %, Al: at least 45% and no greater than 70%, Mg: at least 3% and less than 10%, Si: at least 3% and less than 10%, with the remainder Zn and unavoidable impurities, wherein the Al/Zn ratio is 0.89-2.75 and the plating layer contains a bulky Mg2Si phase; also, a Zn—Al—Mg—Si alloy-plated steel material with excellent corrosion resistance, characterized by comprising, in terms of wt %, Al: at least 45% and no greater than 70%, Mg: at least 1% and less than 5%, Si: at least 0.5% and less than 3%, with the remainder Zn and unavoidable impurities, wherein the Al/Zn ratio is 0.89-2.75 and the plating layer contains a scaly Mg2Si phase.

    摘要翻译: 一种耐腐蚀性优异的Zn-Al-Mg-Si合金钢材,其特征在于以重量%计含有Al:至少45%且不大于70%的Mg:至少3%以下 10%,Si:至少3%且小于10%,其余为Zn和不可避免的杂质,其中Al / Zn比为0.89-2.75,镀层含有体积大的Mg2Si相; 还有,具有优异耐腐蚀性的Zn-Al-Mg-Si合金镀钢材料,其特征在于以重量%计含有Al:至少45%且不大于70%的Mg:至少1%和 小于5%,Si:至少0.5%且小于3%,其余为Zn和不可避免的杂质,其中Al / Zn比为0.89-2.75,镀层含有鳞片状Mg 2 Si相。