Method for continuous vacuum casting of metals or other materials
    1.
    发明授权
    Method for continuous vacuum casting of metals or other materials 失效
    金属或其他材料的连续真空铸造方法

    公开(公告)号:US3800848A

    公开(公告)日:1974-04-02

    申请号:US30081672

    申请日:1972-10-25

    摘要: A method for continuous vacuum casting of metals or other materials, more particularly for the obtention of shapes such as tubes and bars. The method is applicable to plants comprising a spray means in the open air and a dynamic lock for emergence of a cast shape into air. The lock comprises chambers maintained under decreasing pressures by pumping devices and are separated from each other by diaphragms. The static pressure of the metal on the shape being formed is held at a constant value, for a given size of shape with respect to the liquid meniscus size, so as to render the difference between the cross-section of said shape when reaching the dynamic lock, and the cross-section of the diaphragms low enough for the rate of air admission to remain lower than the pumping rates of the pumping devices. The cast shape is cooled throughout a zone of such length, as a function of a set rate of withdrawal of the shape, that the shape will enter the spray means, when leaving the lock, at a constant temperature.

    摘要翻译: 金属或其他材料的连续真空铸造的方法,特别是用于获得诸如管和棒的形状。 该方法适用于包括在空气中的喷雾装置的植物和用于将铸造形状喷射到空气中的动态锁定装置。 该锁包括通过泵送装置在减压下保持的室并且通过隔膜彼此分离。 所形成的形状上的金属的静压力相对于液体弯月面尺寸保持在给定尺寸的形状的恒定值,以便在达到动态的时候形成所述形状的横截面之间的差异 锁定,并且隔膜的横截面足够低以使进气速率保持低于泵送装置的泵送速率。 铸造形状在这样长度的区域中被冷却,这是随着设定的形状退出速度的函数,当在恒定温度下离开锁时,该形状将进入喷雾装置。

    Plant for continuous vacuum casting of metals or other materials
    3.
    发明授权
    Plant for continuous vacuum casting of metals or other materials 失效
    连续真空铸造金属或其他材料的工厂

    公开(公告)号:US3724529A

    公开(公告)日:1973-04-03

    申请号:US3724529D

    申请日:1969-10-13

    摘要: The invention relates to a method for continuous vacuum casting of metals or other materials and a plant for effecting said method more particularly for the obtention of shapes and tubes. The method applicable to plants comprising a spray means in the open air and a dynamic lock for emergence into air,comprised of chambers which are maintained under decreasing pressures by pumping devices of known types and are separated from each other by diaphragms, consists, on the one hand, in holding the static pressure of the metal on the shape or tube being formed at a constant value, for a given size with respect to the liquid meniscus size, so as to render the permissible difference between the cross-section of said shape or tube, when reaching the dynamic lock, and the cross-section of said diaphragms low enough for the rate of air admission to remain in all cases lower than the pumping rates of said pumping devices, and, on the other hand, in so selecting the cooling zone length, as a function of the suitably set rate of withdrawal of the moulded shape, that said shape will enter the spray means, when leaving the lock, at a constant, controlled temperature. The invention is especially applicable to the obtention of uranium shapes or tubes.

    摘要翻译: 本发明涉及金属或其它材料的连续真空铸造的方法以及用于实现所述方法更具体地用于获得形状和管子的设备。