Apparatus and method for casting amorphous metal alloys in an adjustable low density atmosphere
    1.
    发明授权
    Apparatus and method for casting amorphous metal alloys in an adjustable low density atmosphere 有权
    在可调低密度气氛中铸造非晶态金属合金的装置和方法

    公开(公告)号:US06453984B1

    公开(公告)日:2002-09-24

    申请号:US09805386

    申请日:2001-03-13

    IPC分类号: B22D1100

    CPC分类号: B22D11/0697

    摘要: An apparatus and method for casting metal strip includes a moving chill body that has a quench surface. A nozzle mechanism deposits a stream of molten metal on a quenching region of the quench surface to form the strip. The nozzle mechanism has an exit portion with a nozzle orifice. A depletion mechanism includes a plurality of independently controllable gas nozzles to supply a reducing gas to multiple zones of a depletion region located adjacent to and upstream from the quenching region. The gas flow profile can be controlled in each zone independently of controlling the gas flow in other zones. The reducing gas reacts exothermically to lower the density to provide a low density reducing atmosphere within the depletion and substantially prevent formation of gas pockets in the strip.

    摘要翻译: 用于铸造金属带的装置和方法包括具有淬火表面的移动冷却体。 喷嘴机构将熔融金属流沉积在淬火表面的淬火区域上以形成条带。 喷嘴机构具有带有喷嘴孔口的出口部分。 耗尽机构包括多个可独立控制的气体喷嘴,以将还原气体供应到位于淬火区域附近和上游的耗尽区域的多个区域。 可以在每个区域中控制气体流量分布,而不管其他区域中的气体流量是如何控制的。 还原气体放热反应以降低密度,以在耗尽之内提供低密度的还原气氛,并且基本上防止条带中的气穴的形成。