Patent ID: 8784727
Filing Date: 2014-07-22
Classification: C22B,F27B,F27D,Y02P

Abstract:
1. An improved molten metal furnace comprising: a molten metal reservoir adapted to retain a bath of molten metal; at least one heater proximate to said reservoir, wherein said at least one heater is surrounded by an atmosphere comprising air and heater exhaust gases; and a buffer plate disposed between said bath of molten metal and said at least one heater, wherein said buffer plate seals and separates said molten metal bath from said heater atmosphere; wherein said at least one heater generates sufficient heat to melt a metal which makes up said molten metal bath, said heat passing through said buffer plate to said molten metal bath; and wherein said buffer plate is a superalloy having an emissivity of approximately 0.96-0.98.