Patent ID: 6196294
Filing Date: 2001-03-06
Classification: B22D

Abstract:
A casting plant for low-pressure casting of molten metal with operatively and kinematically connected units in the form of linear or revolving conveying devices comprising:casting molds constructed and arranged to be filled with molten metal intermittently or continuously, and disposed either in a casting or residual metal receiving station or in a separate casting station;an insulated feeder pressure pot with a recompression unit and a shutoff valve unit having gas charging conduits flanged to the underside of the casting mold, the insulated feeder pressure pot being constructed and arranged to receive excess molten metal from the casting mold after a casting therein has solidified;a casting or residual metal receiving station, disposed beneath the casting molds and comprising a hermetically sealed, insulated pressurized furnace in which two assembled crucibles are disposed, including an inner crucible forming a pressure chamber for filling with molten metal, a furnace cover having a movable pressure line and a movable return line for the molten metal passing therethrough, the pressure line extending from the shutoff valve unit to a portion of the crucible which is constructed and arrange to be below the surface of the molten metal therein, and the return line extending from the shutoff valve unit to a portion of the crucible constructed and arranged to be above the surface of the molten metal contained therein, anda transport container for transporting molten metal to the casting plant.