METHOD FOR CONTINUOUS CASTING OF MOLTEN STEEL FOR THIN SHEET

Title:

METHOD FOR CONTINUOUS CASTING OF MOLTEN STEEL FOR THIN SHEET

Document Type and Number:

WIPO Patent Application WO/2004/018127

Kind Code:

A1

Abstract:

A method for continuous casting of molten steel for a thin sheet, in which, in the casting of aluminum-killed steel, a CaO·MgO based refractory containing 20 mass % or more of a CaO·MgO based clinker is used at least in a portion contacting with molten steel, wherein 60 % or more of MgO crystals contained in particles of the CaO·MgO based clinker have a particle diameter of 50 μm or less. In the method, MgO crystals in the molten steel have a reduced particle, which results in the reduction in the frequency of the occurrence of a scratch even when they are contained as inclusions in a cast steel and the steel is rolled.

Inventors:

OGATA KOJI (JP)
KIMURA HARUYOSHI (JP)
HOOVER DONALD BRUCE (US)

Application Number:

PCT/JP2003/010673

Publication Date:

March 04, 2004

Filing Date:

August 22, 2003

Export Citation:

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Assignee:

KROSAKIHARIMA CORP (JP)
LWB REFRACTORIES COMPANY (US)
OGATA KOJI (JP)
KIMURA HARUYOSHI (JP)
HOOVER DONALD BRUCE (US)

International Classes:

B22D11/10; B22D41/02; B22D41/18; B22D41/32; B22D41/54; C04B35/06; (IPC1-7): B22D11/10

Foreign References:

JPS6475155A	1989-03-20
JPH1025167A	1998-01-27
JPH11285792A	1999-10-19

Other References: