Sumitomo Metal Industries, Inc.

Hirohisa Kikuchi

Toshihiko Murakami

Masahiko Oka

Masahito Hanao

Masayuki Kawamoto

Takashi Usui

Atsushi Murata

Among the slab-supporting guide roll pairs disposed in the region in which a liquid core exists within the slab, at least four consecutive guide roll pairs are disposed under such conditions that the roll axis-to-axis distances on the fixed side and loose side of the guide roll pairs and the roll halfway-to-halfway distances on the fixed side and loose side are all different from one another. Casting is carried out while disposing the guide roll pairs under sucb conditions.

Machine and method for continuous casting of steel

A method of continuous casting of a steel employs a mold power having a viscosity of 0.5-1.5 poise at 1,300&deg; C. and a solidification temperature of 1,190-1,270&deg; C., in which the mass ratio of CaO to SiO is 1.2-1.9, and casting is carried out under the following conditions: casting speed is 2.5-10 m/minute; mold oscillation stroke is 4-15 mm; and specific cooling intensity in secondary cooling of a slab is 1.0-5.0 liter/kg-steel.

Method for continuous casting of steel

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Amagasaki, Japan

Hirohisa Kikuchi