Title:
QUENCHING DEVICE, CONTINUOUS ANNEALING EQUIPMENT, QUENCHING METHOD, METHOD FOR MANUFACTURING STEEL SHEET, AND METHOD FOR MANUFACTURING PLATED STEEL SHEET
Document Type and Number:
WIPO Patent Application WO/2023/042794
Kind Code:
A1
Abstract:
The purpose of the present invention is to provide a quenching device, continuous annealing equipment, a quenching method, a method for manufacturing a steel sheet, and a method for manufacturing a plated steel sheet with which it is possible to minimize warpage of a metal sheet after quenching even when warpage is already present in the metal sheet before quenching. The quenching device 1 comprises: a cooling device 10 provided with a plurality of jetting nozzles 12 for spraying a cooling fluid onto the obverse and reverse surfaces of a metal sheet S; and a flow rate adjustment device 30 for setting, on the basis of the shape of the metal sheet S before quenching, the flow rate of the cooling fluid sprayed onto the obverse and reverse surfaces of the metal sheet S from the jetting nozzles 12.
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Inventors:
YOSHIMOTO SOSHI (JP)
KOBAYASHI HIROKAZU (JP)
KOBAYASHI HIROKAZU (JP)
Application Number:
PCT/JP2022/034060
Publication Date:
March 23, 2023
Filing Date:
September 12, 2022
Export Citation:
Assignee:
JFE STEEL CORP (JP)
International Classes:
C21D9/573; C21D1/00; C21D1/63; C22C38/00; C22C38/60
Domestic Patent References:
| WO2020203261A1 | 2020-10-08 |
Foreign References:
| JPH0987752A | 1997-03-31 | |||
| JP2002226957A | 2002-08-14 | |||
| CN101928811A | 2010-12-29 | |||
| JPS59153843A | 1984-09-01 | |||
| JP2011184773A | 2011-09-22 |
Attorney, Agent or Firm:
KUMASAKA Akira et al. (JP)
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