EP 3541969 B1 20230628 - METHOD FOR PRODUCING A STRIP OF A CO-FE ALLOY, STRIP OF A CO-FE ALLOY AND SHEET METAL STACK
Title (en)
METHOD FOR PRODUCING A STRIP OF A CO-FE ALLOY, STRIP OF A CO-FE ALLOY AND SHEET METAL STACK
Title (de)
VERFAHREN ZUM HERSTELLEN EINES BANDES AUS EINER CO-FE-LEGIERUNG, BAND AUS EINER CO-FE-LEGIERUNG UND BLECHPAKET
Title (fr)
PROCÉDÉ DE FABRICATION D'UNE BANDE EN ALLIAGE CO-FE, BANDE EN ALLIAGE CO-FE ET PAQUET DE TÔLES
Publication
Application
Priority
- DE 102016222805 A 20161118
- EP 2017079682 W 20171117
Abstract (en)
[origin: WO2018091694A1] The invention relates, in one embodiment, to a semi-finished product, which comprises at least one metal strip consisting substantially of 35 wt% ≤ Co ≤ 55 wt%, 0 wt% ≤ V ≤ 3 wt%, 0 wt% ≤ Ni ≤ 2 wt%, 0 wt% ≤ Nb ≤ 0.50 wt%, 0 wt% ≤ Zr + Ta ≤ 1.5 wt%, 0 wt% ≤ Cr ≤ 3 wt%, 0 wt% ≤ Si ≤ 3 wt%, 0 wt% ≤ Al ≤ 1 wt%, 0 wt% ≤ Mn ≤ 1 wt%, 0 wt% ≤ B ≤ 0.25 wt%, 0 wt% ≤ C ≤ 0.1 wt%, remainder Fe and up to 1 wt% of impurities, wherein the impurities can have one or more of the group O, N, S, P, Ce, Ti, Mg, Be, Cu, Mo and W. The strip has a thickness d, wherein 0.05 mm ≤ d ≤ 0.5 mm, a Vickers hardness of greater than 300, an elongation at break of less than 5% and, after a heat treatment of the strip at a temperature between 700 °C and 900 °C, a permanent growth dl/l0 of less than 0.08%, preferably 0.06%, in the longitudinal direction of the strip and/or of less than 0.08%, preferably 0.06%, in the transverse direction of the strip.
IPC 8 full level
C22C 30/00 (2006.01); C21D 1/18 (2006.01); C21D 8/02 (2006.01); C21D 8/12 (2006.01); C22C 19/07 (2006.01); C22C 38/10 (2006.01); C22C 38/12 (2006.01); C22F 1/10 (2006.01); H01F 1/147 (2006.01)
CPC (source: EP US)
C21D 8/1222 (2013.01 - US); C21D 8/1233 (2013.01 - US); C21D 8/1261 (2013.01 - EP US); C21D 8/1266 (2013.01 - EP US); C21D 8/1272 (2013.01 - EP US); C22C 19/07 (2013.01 - EP US); C22C 30/00 (2013.01 - EP); C22C 38/10 (2013.01 - EP US); C22C 38/105 (2013.01 - US); C22C 38/12 (2013.01 - EP US); C22C 38/14 (2013.01 - US); C22C 38/18 (2013.01 - US); C22C 38/24 (2013.01 - US); C22C 38/26 (2013.01 - US); C22C 38/28 (2013.01 - US); C22C 38/30 (2013.01 - US); C22C 38/32 (2013.01 - US); C22C 38/40 (2013.01 - US); C22C 38/46 (2013.01 - US); C22C 38/48 (2013.01 - US); C22C 38/50 (2013.01 - US); C22C 38/52 (2013.01 - US); C22C 38/54 (2013.01 - US); C22F 1/10 (2013.01 - EP US); H01F 1/147 (2013.01 - EP US); C21D 8/1222 (2013.01 - EP); C21D 8/1233 (2013.01 - EP)
Designated contracting state (EPC)
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
DOCDB simple family (publication)
WO 2018091694 A1 20180524; DE 102016222805 A1 20180524; EP 3541969 A1 20190925; EP 3541969 B1 20230628; US 2019360065 A1 20191128
DOCDB simple family (application)
EP 2017079682 W 20171117; DE 102016222805 A 20161118; EP 17811215 A 20171117; US 201716461720 A 20171117