METHOD FOR PREVENTING SURFACE FLAW ON CAST SLAB, AND ITS CAST SLAB

Title:

METHOD FOR PREVENTING SURFACE FLAW ON CAST SLAB, AND ITS CAST SLAB

Document Type and Number:

Japanese Patent JP2004058129

Kind Code:

A

Abstract:

To provide a method for preventing surface flaw on a cast slab, and the cast slab on which the surface flaw can be prevented.

Among pinch rolls disposed in a continuous casting line for producing the cast slab, at least one or more rolls on the side coming in contact with the lower surface when hot-rolling is performed, are formed with the roll diameter in the center part increased and the center part in the width direction at the lower surface side of the cast slab is recessed along the rolling direction after passing through the pinch rolls.

More Like This:

JPH11192501	TAILORED STEEL STRIP FOR PRESS FORMING AND ITS PRODUCTION
JPS61162208	CONTINUOUS HOT ROLLING DEVICE LINE
JPS62137102	PRODUCTION OF HOT ROLLED TITANIUM SHEET HAVING GOOD SURFACE CHARACTERISTIC

Inventors:

OBARA KAZUKI
NOMURA HIROSHI
MITSUZONO MASAYUKI

Application Number:

JP2002223224A

Publication Date:

February 26, 2004

Filing Date:

July 31, 2002

Export Citation:

Click for automatic bibliography generation Help

Assignee:

JFE STEEL KK

International Classes:

B21B1/26; B22D11/128; (IPC1-7): B22D11/128; B21B1/26

Attorney, Agent or Firm:

Eiichi Kobayashi

Previous Patent: PET (POLYETHYLENE TEREPHTHALATE) BOTTLE CRUSHER

Next Patent: METHOD AND APPARATUS FOR INJECTION-FOAMED MOLDING OF LIGHT ALLOY