Method of heating a molten metal in a continuous casting tundish using a plasma torch, and tundish for its implementation
AssigneeSollac
InventorMichel Henryon
Life of this patent
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Abstract
Method of heating molten metal in a tundish by irradiating a plasma torch on molten metal flowing along an internal surface of a heating compartment, and tundish configured for such method.
Claims5
A method of heating molten metal in a continuous casting tundish comprising a heating compartment formed inside said tundish having walls of which internal surfaces contact the molten metal and a plasma torch installed in said heating compartment and having an end from which an electric arc is generated positioned above a level of the molten metal in said heating compartment, said method comprising:
- causing the molten metal to flow along at least a part of said internal surfaces of said heating compartment walls facing towards the end of the plasma torch,
- generating an electric arc between said end of said plasma torch and said level of the molten metal,
- wherein the electric arc radiates over the molten metal flowing along said part of said internal surfaces.
A tundish for continuous casting of a molten metal comprising a plasma torch for heating the molten metal, a cover through which said torch passes and casting nozzles formed in the bottom of the tundish, and further comprising at least one heating compartment having walls made of refractory material in which said plasma torch is positioned, means for feeding said heating compartment with molten metal by causing said metal to flow along internal surfaces of walls of said heating compartment, and means for bringing the heated molten metal to the casting nozzles.
Dependencies are inferred from the claim text.