Low-pressure casting method and low-pressure casting apparatus
    1.
    发明授权
    Low-pressure casting method and low-pressure casting apparatus 失效
    低压铸造法和低压铸造装置

    公开(公告)号:US4425958A

    公开(公告)日:1984-01-17

    申请号:US322063

    申请日:1981-11-16

    IPC分类号: B22D18/04 B22D33/00 B22D17/06

    CPC分类号: B22D33/00 B22D18/04

    摘要: With low-pressure or die-casting methods there frequently occur leaks during the transfer of the molten metal from the metal containing basin or vessel to the mold. These leaks often lead to serious accidents and related operating interruptions. According to the invention these problems are solved by a casting method, wherein all movements of the mold occur in a vertical plane. With a preferred embodiment of apparatus for the performance of the method the mold is placed in a positive or form-locking manner with its casting or pour opening upon the casting hole of the metal containing vessel or basin and pressed against the latter in a fluidtight fashion by means of a pneumatic lifting cylinder. This affords the advantage of a simple connection of the mold with the basin and without requiring a coupling mechanism, and, additionally, the heating of the riser or up tube and/or immersion tube can be omitted, which otherwise conventionally was performed by gas heating.

    摘要翻译: 使用低压或压铸方法,在将熔融金属从含金属盆或容器转移到模具期间经常发生泄漏。 这些泄漏通常会导致严重的事故和相关的操作中断。 根据本发明,这些问题通过铸造方法来解决,其中模具的所有运动发生在垂直平面中。 利用用于执行该方法的装置的优选实施例,模具以正或锁定的方式放置,其铸造或倒入开口位于含金属容器或盆的铸造孔上并以流体密封的方式压靠在其上 通过气动提升缸。 这提供了模具与盆地的简单连接并且不需要联接机构的优点,此外,可以省略提升管或上管和/或浸入管的加热,否则常规地通过气体加热 。