Flux-free Joining of Aluminium Composite Materials
    2.
    发明申请
    Flux-free Joining of Aluminium Composite Materials 审中-公开
    无焊接铝合金复合材料

    公开(公告)号:US20160325367A1

    公开(公告)日:2016-11-10

    申请号:US15177581

    申请日:2016-06-09

    摘要: Use of an aluminium composite material in a thermal joining method, said material consisting of at least one aluminium core alloy and at least one external brazing layer consisting of an aluminium brazing alloy provided on one or both sides of the aluminium core alloy, wherein the aluminium brazing layer has a pickled surface. Reduced costs and a lower environmental impact is achieved by using an aluminium composite material in which the pickled surface of the aluminium brazing layer had been pickled by pickling with an acid, aqueous pickling solution containing at least one mineral acid and at least one complex-forming agent or a complexing mineral acid, wherein the removal of material in the pickling is between 0.05 g/m2 and 6 g/m2, the aluminium composite material is used in a flux-free, thermal joining method, and the joining method is carried out in the presence of a protective gas.

    摘要翻译: 在热接合方法中使用铝复合材料,所述材料由至少一个铝芯合金和至少一个外壳钎焊层组成,所述至少一个外部钎焊层由在铝芯合金的一侧或两侧上提供的铝钎焊合金组成,其中铝 钎焊层具有酸洗表面。 通过使用铝复合材料来实现降低成本和降低环境影响,其中铝钎焊层的酸洗表面通过酸洗酸洗,含有至少一种无机酸的水性酸洗液和至少一种络合物形成 代理或络合无机酸,其中在酸洗中去除材料为0.05g / m 2至6g / m 2,铝复合材料以无助焊剂热接合方法使用,并且进行接合方法 在有保护气体的情况下。

    Aluminum Alloy Strip with Improved Surface Appearance and Method for Producing Same
    5.
    发明申请
    Aluminum Alloy Strip with Improved Surface Appearance and Method for Producing Same 审中-公开
    具有改进表面外观的铝合金带及其制造方法

    公开(公告)号:US20140341678A1

    公开(公告)日:2014-11-20

    申请号:US14448244

    申请日:2014-07-31

    IPC分类号: B21B45/02 B21D51/26 B21B1/22

    摘要: The invention relates to an aluminum alloy strip with improved surface optics, which is fabricated via hot and/or cold rolling, and consists of a type AA 3xxx, AA 5xxx, AA 6xxx or AA 8xxx aluminum alloy. The object of proposing an aluminum alloy strip that is suitable for attractive and precious surface optics despite the elevated percentage of alloy constituents is achieved in that, after degreasing, the finish-rolled aluminum alloy strip exhibits an increase in the luminance value L*(ΔL) in relation to the rolled-greasy state of more than 5 while measuring the color of the surface in the CIE L*a*b* color space using a standard illuminant D65 and a normal observation angle of 10°, excluding direct reflection in 45°/0° geometry.

    摘要翻译: 本发明涉及一种具有改进的表面光学的铝合金带,其通过热和/或冷轧制造,并由AA 3xxx,AA 5xxx,AA 6xxx或AA 8xxx铝合金制成。 尽管提高了合金成分的百分比,但提出了适合于有吸引力和珍贵的表面光学的铝合金条的目的是实现了在脱脂之后,精轧铝合金带显示亮度值L *(&Dgr ; L)相对于滚动油腻状态大于5,同时使用标准光源D65和正常观察角度10°测量CIE L * a * b *色彩空间中的表面的颜色,不包括直接反射 45°/ 0°几何。