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    Dual mode gas system for casting
    6.
    发明授权
    Dual mode gas system for casting 失效
    双模气体系统铸造

    公开(公告)号：US5244031A

    公开(公告)日：1993-09-14

    申请号：US594348

    申请日：1990-10-09

    申请人： Arnold J. Cook ,  Paul S. Werner

    发明人： Arnold J. Cook ,  Paul S. Werner

    IPC分类号： B22D18/04

    CPC分类号： B22D18/04

    摘要： The present invention pertains to an apparatus for casting comprised of a pressure vessel and means for evacuating and pressurizing the vessel. The evacuating and pressurizing means is in fluidic connection with the vessel. The apparatus is also comprised of a crucible disposed in the pressure vessel within which material is melted. There is a mold disposed in the pressure vessel. Additionally, the apparatus is comprised of means for heating material in the crucible and the mold in the mold chamber such that material is melted in the crucible and stays melted as it is drawn up to the mold chamber while the evacuating and pressurizing means evacuates the vessel, and when it is forced into the mold while the evacuating and pressurizing means charges the vessel. The heating means is disposed in the vessel. The pressurizing means comprises at least one chill line which serves to chill the mold as the vessel is pressurized. The present invention also pertains to a method for casting. The method comprises the steps of placing in a mold chamber of a pressure vessel a mold; placing in a crucible of the pressure vessel a material; evacuating the vessel through the mold chamber; melting the material in the crucible; placing the crucible in fluidic connection with the mold chamber; and pressurizing the vessel at a controlled rate such that the pressurized gas flows through the chill line thereby serving the dual purpose of pressurizing the vessel and chilling the mold.

    摘要翻译： 本发明涉及由压力容器和用于对容器进行抽空加压的装置的铸造装置。 抽空和加压装置与容器流体连接。 该设备还包括设置在压力容器中的坩埚，在该容器内熔化材料。 设置在压力容器中的模具。 此外，该装置包括用于加热坩埚中的材料和模具室中的模具的装置，使得材料在坩埚中熔化并在其被拉伸到模具室时保持熔化，同时抽空加压装置将容器 并且当排气和加压装置对容器充电时被迫进入模具中。 加热装置设置在容器中。 加压装置包括至少一个冷却管线，其用于在容器加压时冷却模具。 本发明还涉及一种铸造方法。 该方法包括以下步骤：将压力容器的模腔放置在模具中; 将压力容器的坩埚放置在材料的坩埚中; 将容器排出模具室; 熔化坩埚中的材料; 将坩埚放置成与模具室流体连接; 并以受控的速度对容器加压，使得加压气体流过冷却线，从而实现对容器加压和冷却模具的双重目的。