Title:
CONTINUOUS ANNEALING FACILITY, CONTINUOUS ANNEALING METHOD, METHOD FOR PRODUCING COLD-ROLLED STEEL SHEET, AND METHOD FOR PRODUCING PLATED STEEL SHEET
Document Type and Number:
WIPO Patent Application WO/2024/070279
Kind Code:
A1
Abstract:
Provided are: a continuous annealing facility in which a steel sheet phase fraction under a high-temperature condition is predicted with high accuracy and the fluctuations in the predicted phase fraction is rapidly reflected in an annealing condition; a continuous annealing method; a method for producing a cold-rolled steel sheet; and a method for producing a plated steel sheet. The continuous annealing facility is a continuous annealing facility for steel sheets, and is provided with a heating zone (6), a soaking zone (7) and a cooling zone (8) in this order, in which at least one induction heating device (9) and a control device that presets the conditions for operation of the induction heating device on the basis of the phase fraction during annealing which has been acquired by a phase fraction prediction model are provided between the soaking zone (7) and the cooling zone (8).
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Inventors:
OSUKA KENICHI (JP)
KOMINE SHINSUKE (JP)
TAKEDA GENTARO (JP)
KOMINE SHINSUKE (JP)
TAKEDA GENTARO (JP)
Application Number:
PCT/JP2023/029324
Publication Date:
April 04, 2024
Filing Date:
August 10, 2023
Export Citation:
Assignee:
JFE STEEL CORP (JP)
International Classes:
C21D9/46; C21D1/26; C21D1/42; C21D9/56; C22C38/00; C22C38/60; G06N20/00
Foreign References:
| JPH10152728A | 1998-06-09 | |||
| JP2022024340A | 2022-02-09 | |||
| JPH11153581A | 1999-06-08 |
Attorney, Agent or Firm:
SUGIMURA Kenji (JP)
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