(19)
(11) EP 3 947 755 A1

(12)

(43) Date of publication:
09.02.2022 Bulletin 2022/06

(21) Application number: 20713012.1

(22) Date of filing: 26.03.2020
(51) International Patent Classification (IPC): 
C21D 8/12(2006.01)
B32B 7/025(2019.01)
C22C 38/04(2006.01)
 H01F 1/147(2006.01)
C22C 38/02(2006.01)
C22C 38/06(2006.01)
(52) Cooperative Patent Classification (CPC):
C21D 8/1233; C21D 8/1283; C21D 2201/05; C21D 8/1255; C21D 8/1244; C21D 8/1288; C22C 38/16; C22C 38/04; C22C 38/02; C22C 38/06; C21D 8/1277; C21D 8/1272; H01F 1/16
(86) International application number:
PCT/EP2020/058590
(87) International publication number:
WO 2020/193717 (01.10.2020 Gazette 2020/40)
(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: 26.03.2019 EP 19165241

(71) Applicant: ThyssenKrupp Electrical Steel GmbH
45881 Gelsenkirchen (DE)

(72) Inventors:
  • BELGRAND, Thierry
    62232 Hinges (FR)
  • FERRIER, Nicolas
    62400 Béthune (FR)
  • HECHT, Christian
    45481 Mülheim (DE)
  • LAHN, Ludger
    47447 Moers (DE)
  • LEMAÎTRE, Régis
    62400 Béthune (FR)
  • SCHEPERS, Carsten
    46348 Raesfeld (DE)
  • TEODORESCU, Mihaela
    62000 Arras (FR)

(74) Representative: Cohausz & Florack 
Patent- & Rechtsanwälte Partnerschaftsgesellschaft mbB Bleichstraße 14
40211 Düsseldorf
40211 Düsseldorf (DE)

   


(54) IRON-SILICON MATERIAL SUITABLE FOR MEDIUM FREQUENCY APPLICATIONS