COOLING METHOD AND COOLING DEVICE FOR HOT-ROLLED STEEL SHEETS

Title:

COOLING METHOD AND COOLING DEVICE FOR HOT-ROLLED STEEL SHEETS

Document Type and Number:

WIPO Patent Application WO/2010/131467

Kind Code:

A1

Abstract:

Provided is a method for cooling hot-rolled steel sheets after a final rolling. Using cooling water at a flow rate between 4 m³/m²/min and 10 m³/m²/min, the hot-rolled steel is cooled from a first temperature between 600°C and 650°C to a second temperature less than or equal to 450°C. At least 80% of the surface area of the surface being cooled is directly impacted by a jet of the aforementioned cooling water.

Inventors:

SERIZAWA YOSHIHIRO (JP)
NISHIYAMA YASUHIRO (JP)
OGAWA SHIGERU (JP)
IDA SHINJI (JP)
NIKAIDOH HITOSHI (JP)
YOSHII ISAO (JP)
HISHINUMA NORIYUKI (JP)
KISHIMOTO TETSUO (JP)
TAKAGI NOBUHIRO (JP)

Application Number:

PCT/JP2010/003238

Publication Date:

November 18, 2010

Filing Date:

May 13, 2010

Export Citation:

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Assignee:

NIPPON STEEL CORP (JP)
SERIZAWA YOSHIHIRO (JP)
NISHIYAMA YASUHIRO (JP)
OGAWA SHIGERU (JP)
IDA SHINJI (JP)
NIKAIDOH HITOSHI (JP)
YOSHII ISAO (JP)
HISHINUMA NORIYUKI (JP)
KISHIMOTO TETSUO (JP)
TAKAGI NOBUHIRO (JP)

International Classes:

B21B45/02

Foreign References:

JP2001164323A	2001-06-19
JP2009052065A	2009-03-12
JP2006035311A	2006-02-09

Other References: