COOLER AND COOLING METHOD OF HOT ROLLED STEEL BAND

Title:

COOLER AND COOLING METHOD OF HOT ROLLED STEEL BAND

Document Type and Number:

WIPO Patent Application WO/2008/013318

Kind Code:

A1

Abstract:

A cooler and a cooling method in which a steel band can be cooled uniformly from the tip to the tail end by achieving a high cooling capacity and a stabilized cooling region appropriately when a hot rolled steel band is cooled with cooling water. There are the following three specific methods. (1) On the upper surface side of a steel band (12), circular tube nozzles (14) jetting rod-like cooling water are disposed oppositely while inclining toward the downstream side and the upstream side, respectively, with respect to the traveling direction of the steel band (12). (2) On the upper surface side of a steel band (12), circular tube nozzles (14) jetting rod-like cooling water are disposed oppositely while inclining toward immediately above a table roll (9) from the downstream side and the upstream side thereof, respectively,. (3) On the lower surface side of the steel band (12), a lower surface cooling nozzle (19) for jetting cooling water toward the lower surface of the steel band from between the table rolls is disposed, and on the upper surface side of a steel band (12), cooling nozzles (14) jetting rod-like cooling water inclined from the upstream side and the downstream side, respectively, toward immediately above a position where the cooling water jetted from the lower surface cooling nozzle (19) collides against the steel band (12) are disposed oppositely.

Inventors:

UEOKA SATOSHI (JP)
FUJIBAYASHI AKIO (JP)
NAKATA NAOKI (JP)
KUROKI TAKASHI (JP)
TOMITA SHOUGO (JP)

Application Number:

PCT/JP2007/065119

Publication Date:

January 31, 2008

Filing Date:

July 26, 2007

Export Citation:

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Assignee:

JFE STEEL CORP (JP)
UEOKA SATOSHI (JP)
FUJIBAYASHI AKIO (JP)
NAKATA NAOKI (JP)
KUROKI TAKASHI (JP)
TOMITA SHOUGO (JP)

International Classes:

B21B45/02

Foreign References:

JP2001286925A	2001-10-16
JP2003211205A	2003-07-29
JPS62260022A	1987-11-12
JP2007203369A	2007-08-16
JPH09141322A	1997-06-03
JPH10166023A	1998-06-23
JPS59144513A	1984-08-18

Other References: