METHOD OF HOT ROLLING HIGH-SILICON STEEL PLATE

Title:

METHOD OF HOT ROLLING HIGH-SILICON STEEL PLATE

Document Type and Number:

WIPO Patent Application WO/1989/011349

Kind Code:

A1

Abstract:

This invention relates to a method of hot rolling a high-silicon steel plate. According to the present invention, leader strips, each of which consists of a metallic material having superior cold and hot processability, are joined to both end portions of a high-silicon steel plate, and the other end portions of the leader strips are fixed to tension reels, the high-silicon steel plate being then subjected to hot rolling. The preheating of the rolling rolls can be done by passing preheated leader strips through the rolls. In order to carry out a reverse rolling operation, the two tension reels are set in the heat retaining furnaces, and the heat of the steel plate is retained between reverse rolling passes so as to set at least one leader strip to a length larger than the distance between the tension reels, whereby the temperature drop can be compensated for along the whole length of the steel plate.

More Like This:

JPS57124505	HOT ROLLING METHOD
JPH105811	ROLLING EQUIPMENT
JPS5978703	PRODUCTION OF THICK STEEL PLATE

Inventors:

MASUDA SADAKAZU (JP)
FUJITA FUMIO (JP)
MURAKAMI TADAYOSHI (JP)
YOSHINO MASAHIKO (JP)
YAGI RYUICHI (JP)
KAMATA MASAMOTO (JP)

Application Number:

PCT/JP1988/000490

Publication Date:

November 30, 1989

Filing Date:

May 23, 1988

Export Citation:

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Assignee:

NIPPON KOKAN KK (JP)

International Classes:

B21B1/34; B21B1/22; B21B3/00; B21B3/02; B21B15/00; B21B27/10; B21B45/00; (IPC1-7): B21B1/22

Foreign References:

JPS59191503A	1984-10-30
JPH05376946A
JPS59150603A	1984-08-28

Other References: