EP 1263993 B1 20050831 - METHOD FOR PRODUCING NON GRAIN-ORIENTED ELECTRIC SHEETS
Title (en)
METHOD FOR PRODUCING NON GRAIN-ORIENTED ELECTRIC SHEETS
Title (de)
VERFAHREN ZUM HERSTELLEN VON NICHTKORNORIENTIERTEM ELEKTROBLECH
Title (fr)
PROCEDE DE FABRICATION DE TOLE ELECTRIQUE A GRAINS NON ORIENTES
Publication
Application
Priority
- DE 10012838 A 20000316
- DE 10015691 A 20000329
- EP 0102974 W 20010315
Abstract (en)
[origin: US2003188805A1] The invention relates to a method for producing non-grain-oriented hot-rolled magnetic steel sheet in which from a raw material such as cast slabs, strip, roughed strip or thin slabs produced from a steel comprising (in weight %) C: 0.0001-0.05 %; Si: <=1.5 %; Al: <=0.5 %, wherein [% Si]+2[% Al]<=1.8; Mn: 0.1-1.2 %; if necessary up to a total of 1.5 % of alloying additions such as P, Sn, Sb, Zr, V, Ti, N, Ni, Co, Nb and/or B, with the remainder being iron and the usual impurities, in a finishing roll line at temperatures above the Ar1 temperature, a hot strip with a thickness <=1.5 mm is rolled, wherein at least the last forming pass of hot rolling is carried out in the mixed region austenite/ferrite and wherein the total deformation epsilH achieved during rolling in the mixed region austenite/ferrite is <35 %. With the method according to the invention, it is possible in particular to economically produce thicker magnetic steel sheet which is not grain-oriented and which has good magnetic properties.
IPC 1-7
IPC 8 full level
B21B 1/22 (2006.01); B21B 1/26 (2006.01); B21B 1/46 (2006.01); B21B 3/02 (2006.01); B21C 47/26 (2006.01); C21D 8/12 (2006.01); C22C 38/00 (2006.01); C22C 38/06 (2006.01); C22C 38/60 (2006.01); H01F 1/16 (2006.01); C21D 3/04 (2006.01)
CPC (source: EP KR US)
C21D 8/12 (2013.01 - KR); C21D 8/1222 (2013.01 - EP US); C21D 8/1272 (2013.01 - EP US); C21D 3/04 (2013.01 - EP US); C21D 8/1233 (2013.01 - EP US)
Designated contracting state (EPC)
AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR
DOCDB simple family (publication)
US 2003188805 A1 20031009; US 6767412 B2 20040727; AT E303454 T1 20050915; AU 6012701 A 20010924; BR 0109285 A 20021217; DE 10015691 C1 20010726; DE 50107281 D1 20051006; EP 1263993 A1 20021211; EP 1263993 B1 20050831; ES 2248329 T3 20060316; JP 2003527483 A 20030916; JP 5265835 B2 20130814; KR 100771253 B1 20071030; KR 20030011794 A 20030211; MX PA02008528 A 20040517; PL 197691 B1 20080430; PL 357413 A1 20040726; WO 0168925 A1 20010920
DOCDB simple family (application)
US 22168503 A 20030114; AT 01933708 T 20010315; AU 6012701 A 20010315; BR 0109285 A 20010315; DE 10015691 A 20000329; DE 50107281 T 20010315; EP 0102974 W 20010315; EP 01933708 A 20010315; ES 01933708 T 20010315; JP 2001567404 A 20010315; KR 20027012196 A 20010315; MX PA02008528 A 20010315; PL 35741301 A 20010315