Aluminum alloy sheet with excellent formability and method for
manufacture thereof
    1.
    发明授权
    Aluminum alloy sheet with excellent formability and method for manufacture thereof 失效
    成形性优良的铝合金板及其制造方法

    公开(公告)号:US5944923A

    公开(公告)日:1999-08-31

    申请号:US781267

    申请日:1997-01-10

    CPC分类号: C22C21/02 C22F1/00 C22F1/05

    摘要: The invention provides an aluminum alloy sheet that has excellent formability, high coat-baking hardenability, and ensures a proof stress of 200 MPa or more after the coat-baking stage, and that gives favorable product surface quality after the forming stage and excellent corrosion resistance, and that is particularly suitable for external automobile body plates. The aluminum alloy sheet comprises: 0.9 to 1.3 wt. % of Si, 0.4 to 0.6 wt. % of Mg, 0.05 to 0.15 wt. % of Mn, 0.01 to 0.1 wt. % of Ti, with the remainder comprising Al and inevitable impurities, while limiting Fe as an impurity to 0.2 wt. % or less and Cu as an impurity to 0.1 wt. % or less; a coating film of a lubricant composition containing a water-dispersible polyurethane resin and a natural wax on the aluminum alloy sheet.

    摘要翻译: 本发明提供一种铝合金板,其成型性优异,涂层烘烤硬化性高,并且在涂层烘烤阶段之后确保了200MPa以上的耐力,并且在成形阶段后具有良好的产品表面质量和优异的耐腐蚀性 ,特别适用于外部汽车车身板。 铝合金板包括:0.9〜1.3重量% Si%,0.4〜0.6wt。 %的Mg,0.05〜0.15wt。 Mn%,0.01〜0.1重量% %的Ti,剩余部分包含Al和不可避免的杂质,同时将Fe作为杂质限制在0.2wt。 %以下,Cu为杂质至0.1重量%。 % 或更少; 在铝合金板上含有水分散性聚氨酯树脂和天然蜡的润滑剂组合物的涂膜。