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US 12,151,285 B2Granted
Mold corner heating during casting
AssigneeNovelis Inc.
InventorsBrent Opdendries, Robert Bruce Wagstaff, Ravindra Tarachand Pardeshi, Samuel Robert Wagstaff
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Abstract
Systems and methods may utilize magnetic rotors to heat molten metal in the corner regions of a mold during casting (e.g., casting of an ingot, billet, or slab). The magnetic rotors are positioned adjacent to the corners of the mold and heat the molten metal in the corner region to increase the temperature of the molten metal adjacent the corners. The increased temperature of the molten metal in the mold corners can prevent intermetallics from forming in the molten metal or otherwise reduce such formation.
Claims15
An apparatus comprising:
- a mold comprising mold walls defining an opening for accepting molten metal, wherein an intersection of the mold walls at least partially defines a corner region of the opening;
- and
- a magnetic rotor adjacent to the corner region, wherein the magnetic rotor is:
- oriented to rotate one or more permanent magnets around a rotational axis that is perpendicular to a top face of the mold,
- positioned at a height above the molten metal when the molten metal is within the opening defined by the mold, and
- configured to induce a current in the molten metal within the corner region to heat the molten metal within the corner region to a temperature that inhibits formation of intermetallics.
3 more elements
Dependencies are inferred from the claim text.