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    CORROSION RESISTANT ALLOY FOR EXTRUDED AND BRAZED PRODUCTS
    5.
    发明公开
    CORROSION RESISTANT ALLOY FOR EXTRUDED AND BRAZED PRODUCTS 审中-公开

    公开(公告)号：EP3449026A1

    公开(公告)日：2019-03-06

    申请号：EP17788454.1

    申请日：2017-04-10

    申请人： Rio Tinto Alcan International Limited

    发明人： PARSON, Nicholas C. ,  GUAY, Raynald

    IPC分类号： C22C21/00 ,  B21C23/00 ,  B22D7/00

    摘要： An aluminum alloy for making an extruded and brazed aluminum product, the aluminum alloy comprising, in weight percent, 0.10-0.20 Zn to improve corrosion resistance, 0.9-1.2 Mn, 0.03-0.10 Mg, the sum of Mg and Mn being at least 0.99 to maintain or improve strength, 0.15 to 0.30 Fe to control grain size, up to 0.15 Si, up to 0.03 Cu, up to 0.04 Ti, the balance being aluminum and unavoidable impurities. The alloy may be in the form of extrusion ingots or extruded and brazed aluminum products. A process for making an extruded and brazed aluminum product from the alloy involves homogenizing, extruding, optionally working, and brazing the alloy to form the product.

    METHOD AND DEVICE FOR CASTING METAL ALLOY INGOTS
    9.
    发明公开
    METHOD AND DEVICE FOR CASTING METAL ALLOY INGOTS 审中-公开

    公开(公告)号：EP3362206A1

    公开(公告)日：2018-08-22

    申请号：EP16788042.6

    申请日：2016-10-10

    申请人： Aleris Rolled Products Germany GmbH

    发明人： MEYER, Philippe ,  MORSCHEISER, Johannes

    IPC分类号： B22D27/04 ,  B22D7/00 ,  B22D7/06 ,  B22D2/00 ,  B22D23/00 ,  B22C9/08 ,  B22D41/015 ,  B22D21/00 ,  B22D27/00 ,  B22D27/06

    CPC分类号： B22D7/064 ,  B22C9/086 ,  B22D2/006 ,  B22D7/005 ,  B22D21/007 ,  B22D23/006 ,  B22D27/003 ,  B22D27/045 ,  B22D27/06

    摘要： A method of casting a metal alloy ingot, including the following steps: providing a one side open-ended mould including a plurality of sides and a bottom plate defining a mould cavity with a mould opening, the open-ended mould being pivotable around a horizontal rotational axis between a position so that the mould opening points upwards and a position so that the mould opening points side-wards or down-wards; positioning the open-ended mould such that the mould opening points side-wards or down-wards; providing a casting container with an upwardly positioned aperture; filling the casting container with molten metal for one casting operation; coupling the casting container to the open-ended mould so that the casting container is located below the mould while the mould opening points side-wards or down-wards; rotating the open-ended mould together with the casting container around the horizontal rotational axis for approximately 90° to 180° from a position whereby the mould opening points side-wards or down-wards to a position whereby the mould opening points upwards such that the molten metal is conveyed through the mould opening into the open-ended mould until reaching a desired thickness, whereby the molten metal in the open-ended mould is cooled directionally through its thickness where the solidification front remains substantially monoaxial.