Patent ID: 6732890
Filing Date: 2004-05-11
Classification: B22D,F27D,H02K

Abstract:
Apparatus for controlling the flow of molten metal into a device for the manufacturing of articles of cast metal, the apparatus comprising:a pressurizing conduit having an entrance, an exit, and a working area, said pressurizing conduit being resistant to the heat and corrosive effect of the molten metal being controlled, at least one pair of electrodes at the walls of said pressurizing conduit, said electrodes being positioned to provide between them a flow of direct current substantially perpendicularly through and across said flow of molten metal; first and second assemblies of neo-magnets comprising a rare-earth element, said assemblies positioned on opposite sides of said conduit for providing magnetic flux extending through said working area in a direction generally perpendicular to flow of molten metal in said working area and said flow of direct current; said first and second assemblies of neo-magnets including first and second pole pieces of magnetically soft ferromagnetic material respectively positioned on opposite sides of said conduit.