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    Sheets of aluminium alloy containing magnesium, suitable for producing bodies of cans by drawing and ironing, and method of obtaining said sheets
    1.
    发明授权
    Sheets of aluminium alloy containing magnesium, suitable for producing bodies of cans by drawing and ironing, and method of obtaining said sheets 失效
    含有镁的铝合金板，适用于通过拉丝和熨烫生产罐体，以及获得所述片材的方法

    公开(公告)号：US4872921A

    公开(公告)日：1989-10-10

    申请号：US199796

    申请日：1987-05-27

    申请人： Didier Teirlinck

    发明人： Didier Teirlinck

    IPC分类号： B21D22/28 ,  C22C21/00 ,  C22C21/06 ,  C22C21/08 ,  C22F1/00 ,  C22F1/04 ,  C22F1/047 ,  C23F1/00

    CPC分类号： C22F1/04

    摘要： The invention relates to sheets of aluminium alloy containing magnesium, suitable for producing bodies of cans by drawing and ironing, and a method of obtaining said sheets.The sheets are characterized in that they have, over 10 to 25% of their surface, uniformly distributed particles formed by amorphous aluminium oxides and crystalline magnesium and aluminium oxides, in the form of flat discs less than 5 microns thick and with a mean diameter distributed round a means value from 2 to 15 microns.One of the methods of obtaining said sheets is characterized in that the strip is taken as it comes from the casting machine or after at least one rolling pass and subjected to chemical etching so as to reduce its thickness by a maximum of 2 microns, before being annealed in air at from 330.degree. to 450.degree. C. for at least 30 minutes.The invention can be applied to the production of bodies of cans for fizzy or non-fizzy drinks, from metal sheets which do not stick in the drawing process, using a wide range of alloys.

    摘要翻译： 本发明涉及适用于通过拉丝和熨烫来制造罐体的镁的含铝合金的片材以及获得所述片材的方法。 这些片材的特征在于，它们具有超过其表面的10至25％的均匀分布的颗粒，其形式为非晶态氧化铝和结晶的镁和铝氧化物，其形式为小于5微米厚的平片，平均直径分布 平均值为2至15微米。 获得所述片材的方法之一的特征在于，条带来自铸造机器或在至少一次轧制之后被采取并进行化学蚀刻，以便将其厚度减小最大2微米，之后为 在空气中在330℃至450℃退火至少30分钟。 本发明可以应用于使用广泛的合金从金属片材制造的用于起泡或非起泡饮料的罐体，其不会在拉伸过程中粘附。