Continuous casting apparatus for steel
AssigneeNippon Steel & Sumitomo Metal Corporation
InventorsTakehiko Toh, Hideaki Yamamura, Kenji Umetsu
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Abstract
A continuous casting device for steel of the present invention includes a casting mold for casting a molten steel, a submerged entry nozzle, an electromagnetic stirring device, and an electromagnetic brake device. Further, a curved portion which is curved toward the electromagnetic stirring device is formed at least at a position where the curved portion faces the submerged entry nozzle, on each of the long side walls. Moreover, the horizontal distance between a top of the curved portion and the submerged entry nozzle in plan view is equal to or more than 35 mm and less than 50 mm.
Claims2
A continuous casting apparatus for steel comprising:
- a casting mold for casting a molten steel, having a pair of long side walls and a pair of short side walls;
- a submerged entry nozzle which discharges the molten steel into the casting mold;
- an electromagnetic stirring device arranged along each of the long side walls to stir an upper part of the molten steel within the casting mold;
- and
- an electromagnetic brake device arranged below the electromagnetic stirring device to impart a direct current magnetic field, along each of the short side walls, which has a flux density distribution which is uniform in a casting mold width direction along each of the long side walls in a casting mold thickness direction,
- wherein a curved portion which is curved toward the electromagnetic stirring device is formed at least at a position where the curved portion faces the submerged entry nozzle on each of the long side walls, and
- wherein the horizontal distance between a top of the curved portion and the submerged entry nozzle in plan view is equal to or more than 35 mm and less than 50 mm.
Dependencies are inferred from the claim text.