CONTINUOUS CASTING DEVICE FOR STEEL - NIPPON STEEL & SUMITOMO METAL CORP

Title:

CONTINUOUS CASTING DEVICE FOR STEEL

Document Type and Number:

WIPO Patent Application WO/2013/069121

Kind Code:

A1

Abstract:

This continuous casting device for steel is provided with: a mold for molten steel casting, which is provided with a pair of long side walls and a pair of short side walls; a submerged nozzle that discharges molten steel within this mold; and electromagnetic stirring devices, which are disposed along the outside surfaces of each of the long side walls and which stir the upper part of the molten steel that is within the mold. In a plane view of the long side walls, curved parts that are curved convexly toward the electromagnetic stirring devices are formed at least in positions facing the nozzle, and the long side walls have a uniform thickness, inclusive of the curved parts. When the inside surface of a curved part is viewed in a plane view, the shortest horizontal distance between the apex, which is the deepest recessed position, and the outer peripheral surface of the submerged nozzle is 30 - 80 mm in a range from the lower end part of the electromagnetic stirring devices up to a position 50 mm higher than the upper end part of the electromagnetic stirring devices when viewed along the perpendicular direction.

Inventors:

TOH TAKEHIKO (JP)
NAKASHIMA JUNJI (JP)
MARUKI YASUO (JP)
YAMASAKI NORIMASA (JP)
TSUNENARI KEIJI (JP)
UMETSU KENJI (JP)

Application Number:

PCT/JP2011/075868

Publication Date:

May 16, 2013

Filing Date:

November 09, 2011

Export Citation:

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Assignee:

NIPPON STEEL & SUMITOMO METAL CORP (JP)
TOH TAKEHIKO (JP)
NAKASHIMA JUNJI (JP)
MARUKI YASUO (JP)
YAMASAKI NORIMASA (JP)
TSUNENARI KEIJI (JP)
UMETSU KENJI (JP)

International Classes:

B22D11/04; B22D11/10; B22D11/11; B22D11/115

Foreign References:

JP2010110765A	2010-05-20
JPH09512484A	1997-12-16
JPH10193067A	1998-07-28
JP2011224635A	2011-11-10

Other References: