MOLTEN STEEL THIN CAST PIECE AND METHOD FOR PRODUCING THE SAME AND COOLING DRUM FOR A THIN CAST PIECE CONTINUOUS CASTING DEVICE

Title:

MOLTEN STEEL THIN CAST PIECE AND METHOD FOR PRODUCING THE SAME AND COOLING DRUM FOR A THIN CAST PIECE CONTINUOUS CASTING DEVICE

Document Type and Number:

WIPO Patent Application WO/1997/009138

Kind Code:

A1

Abstract:

A twin-drum continuous casting method for continuously supplying molten steel between a pair of cooling drums disposed in parallel to each other for solidification thereat and being cast into a thin cast piece wherein at the closest position of the cooling drums, a concave crown amount is imparted to the cooling drums in which the solid phase rate at the thickness-wise centre of a thin cast piece in a range where the distance from an end of the thin cast piece to a central portion is within 50 mm indicates a value equal to or more than a solid phase rate at the fluidity limit or the cooling efficiency in the vicinity of the end portion of the cooling drum is improved.

Inventors:

OKA HIDEKI (JP)
ARAI TAKASHI (JP)
MIYAZAKI MASAFUMI (JP)
YAMAMURA KAZUTO (JP)
YAMADA MAMORU (JP)

Application Number:

PCT/JP1996/002518

Publication Date:

March 13, 1997

Filing Date:

September 05, 1996

Export Citation:

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Assignee:

NIPPON STEEL CORP (JP)
OKA HIDEKI (JP)
ARAI TAKASHI (JP)
MIYAZAKI MASAFUMI (JP)
YAMAMURA KAZUTO (JP)
YAMADA MAMORU (JP)

International Classes:

B22D11/06; (IPC1-7): B22D11/06

Foreign References:

JPH02307652A	1990-12-20
JPS6054249A	1985-03-28
JPS59118250A	1984-07-07
JPS59185045U	1984-12-08

Other References: