(19)
(11) EP 3 959 021 A1

(12)

(43) Date of publication:
02.03.2022 Bulletin 2022/09

(21) Application number: 20717067.1

(22) Date of filing: 17.04.2020
(51) International Patent Classification (IPC): 
B21B 1/46(2006.01)
B21B 45/06(2006.01)
 B21B 3/00(2006.01)
(52) Cooperative Patent Classification (CPC):
B21B 1/46; B21B 3/00; B21B 1/22; B21B 3/02; B21B 45/06
(86) International application number:
PCT/EP2020/060867
(87) International publication number:
WO 2020/216686 (29.10.2020 Gazette 2020/44)
(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 MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated Extension States:
BA ME
Designated Validation States:
KH MA MD TN

(30) Priority: 20.04.2019 EP 19170439

(71) Applicant: Tata Steel IJmuiden B.V.
1951 JZ Velsen-Noord (NL)

(72) Inventors:
  • MELFO PRADA, Wanda, Maria, Carolina
    1970 CA IJmuiden (NL)
  • HUISERT, Mattheüs, Hendrik, Marinus
    1970 CA IJmuiden (NL)
  • WESTENDORP, Albert, Edgar
    1970 CA IJmuiden (NL)
  • VAN DOK, Richard, Alexander
    1970 CA IJmuiden (NL)
  • VAN EIJK, Koert
    1970 CA IJmuiden (NL)

   


(54) METHOD FOR PRODUCING A HIGH STRENGTH SILICON CONTAINING STEEL STRIP WITH EXCELLENT SURFACE QUALITY AND SAID STEEL STRIP PRODUCED THEREBY