Patent ID: 6585797
Filing Date: 2003-07-01
Classification: B22D,C22B,F27B,F27D,Y02P

Abstract:
A molten metal supply system for supplying molten metal to a casting machine, comprising:a holder furnace defining a molten metal receiving chamber; a casting mold located above the holder furnace and defining a mold cavity for casting metal components; at least one molten metal injector supported from a bottom side of the casting mold and extending downward into the molten metal receiving chamber, with the injector providing fluid communication between the molten metal receiving chamber and the mold cavity, and with the injector configured to inject molten metal received into the molten metal receiving chamber into the mold cavity, and a melter furnace located externally adjacent the holder furnace and in fluid communication with the bolder furnace through a first conduit for supplying molten metal to the molten metal receiving chamber, and through a second conduit for recirculating molten metal from the molten metal receiving chamber to to melter furnace, with the melter furnace further comprising: a heating chamber in fluid communication with the molten metal receiving chamber through the second conduit for receiving molten metal recirculating back trough the second conduit from the holder furnace; a pump chamber located adjacent the heating chamber and housing a molten metal pump, with the pump having an inlet in fluid communication with the heating chamber and having an outlet, and with the pump configured to circulate molten metal through the molten metal supply system during operation; a degassing chamber located adjacent the pump chamber and housing a degassing mechanism, with the outlet of the pump in fluid communication with the degassing chamber and providing molten metal to the degassing chamber during operation of the molten metal supply system; and a filter chamber located adjacent and in fluid communication with the degassing chamber, with the filter chamber in fluid communication with the molten metal receiving chamber through the first conduit for supplying degassed and filtered molten metal to the molten metal receiving chamber during operation of the molten metal supply system, wherein a common wall separates the heating chamber from the pump, degassing, and filter chambers.