(19)
(11) EP 4 515 005 A1

(12)

(43) Date of publication:
05.03.2025 Bulletin 2025/10

(21) Application number: 23720676.8

(22) Date of filing: 13.04.2023
(51) International Patent Classification (IPC): 
C21D 1/613(2006.01)
C21D 9/00(2006.01)
C21D 9/567(2006.01)
B22D 11/00(2006.01)
F27B 15/00(2006.01)
F27D 9/00(2006.01)
 C21D 6/00(2006.01)
C21D 9/46(2006.01)
C21D 1/53(2006.01)
B22D 11/12(2006.01)
F28D 13/00(2006.01)
F27D 17/00(2025.01)
(52) Cooperative Patent Classification (CPC):
C21D 1/613; C21D 9/567; C21D 9/46; C21D 2251/02; C21D 9/0062; C21D 9/0081; C21D 9/0056; C21D 6/00; C21D 1/53; F28D 13/00; B22D 11/1213
(86) International application number:
PCT/IB2023/053787
(87) International publication number:
WO 2023/209480 (02.11.2023 Gazette 2023/44)
(84) Designated Contracting States:
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC ME MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated Extension States:
BA
Designated Validation States:
KH MA MD TN

(30) Priority: 25.04.2022 WO PCT/IB2022/053816

(71) Applicant: ArcelorMittal
1160 Luxembourg (LU)

(72) Inventors:
  • BANSAL, Akshay
    57000 Metz (FR)
  • BOISSIERE, Benjamin
    59240 Dunkerque (FR)
  • GRIFFAY, Gérard
    57530 COINCY (FR)

(74) Representative: Plaisant, Sophie Marie 
ArcelorMittal France Research & Development Intellectual Property 6, rue André Campra Immeuble Le Cézanne
93200 Saint-Denis
93200 Saint-Denis (FR)

   


(54) HEATING METHOD OF A SEMI-FINISHED METAL PRODUCTS