Patent ID: 6350293
Filing Date: 2002-02-26
Classification: C22B,F27B

Abstract:
A bottom pour electroslag refining system for refining raw material from a source of raw material into refined liquid metal, the bottom pour electroslag refining system comprising:an electroslag refining crucible; a slag; a bottom pour structure comprising an orifice from which refined liquid metal from the electroslag refining crucible flows from as a stream of refined liquid metal; and a current path defined in the bottom pour electroslag refining system for melting and refining the raw material, the melted and refined raw material forming a refined liquid metal pool in the electroslag refining crucible; wherein current applied by the current path is sufficient to provide the refined liquid metal in the refined liquid metal pool with a viscosity under which the refined liquid metal flows through the orifice under its own viscosity, and wherein the raw material comprises the source of raw material that is supplied to the electroslag refining crucible, and wherein the source of raw material is independent of the current path.