COOLING FACILITY AND PRODUCTION METHOD OF STEEL PLATE

Title:

COOLING FACILITY AND PRODUCTION METHOD OF STEEL PLATE

Document Type and Number:

WIPO Patent Application WO/2007/037095

Kind Code:

A1

Abstract:

A cooling facility of steel plate exhibiting good maintainability and excellent drainage performance when a large quantity of cooling water is supplied to the lower surface of the steel plate, and achieving high cooling speed by performing efficient cooling uniformly in the width direction. A method for producing a high quality steel plate is also provided. The cooling facility comprises a plurality of protective plates (34) arranged obliquely to the carrying direction of the steel plate (10) while spaced apart equally, and a nozzle array provided between the protective plates (34) obliquely to the carrying direction in order to supply cooling water to the lower surface of the steel plate (10), wherein the nozzle array consists of as many circular tube nozzles (32) as the number of imaginary lines (36) described at a constant pitch in the plate width direction that are respectively arranged on the imaginary lines, and the upper end of the circular tube nozzle (32) is located at a position lower than the upper end of the protective plate (34).

Inventors:

NAKATA NAOKI (JP)
KUROKI TAKASHI (JP)
FUJIBAYASHI AKIO (JP)
TOMITA SHOGO (JP)
NISHIDA SHUNICHI (JP)
HIRATA NAOTO (JP)

Application Number:

PCT/JP2006/317399

Publication Date:

April 05, 2007

Filing Date:

August 29, 2006

Export Citation:

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Assignee:

JFE STEEL CORP (JP)
NAKATA NAOKI (JP)
KUROKI TAKASHI (JP)
FUJIBAYASHI AKIO (JP)
TOMITA SHOGO (JP)
NISHIDA SHUNICHI (JP)
HIRATA NAOTO (JP)

International Classes:

B21B45/02

Foreign References:

JPS60166413U	1985-11-05
JPH07214136A	1995-08-15
JPH0480604U	1992-07-14
JPH06304626A	1994-11-01
JPH04200816A	1992-07-21
JPS62259610A	1987-11-12

Other References: