EP 1192287 B1 20030108 - METHOD FOR PRODUCING NON-GRAIN ORIENTED ELECTRIC SHEET STEEL
Title (en)
METHOD FOR PRODUCING NON-GRAIN ORIENTED ELECTRIC SHEET STEEL
Title (de)
VERFAHREN ZUM HERSTELLEN VON NICHT KORNORIENTIERTEM ELEKTROBLECH
Title (fr)
PROCEDE DE PRODUCTION DE TOLE ELECTRIQUE A GRAINS NON ORIENTES
Publication
Application
Priority
- DE 19930519 A 19990705
- EP 0003125 W 20000407
Abstract (en)
[origin: US6773514B1] The present invention relates to a method for producing non grain-oriented magnetic steel sheets in which hot strip is produced from an input stock such as cast slabs, strip, roughed strip, or thin slabs, made of steel comprising (in weight %) C: 0.001-0.05%; Si: <=1.5%; Al: <=0.4% with Si+2Al<=1.7%; 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 as well as the usual accompanying elements; in that the input stock is hot-rolled directly from the casting heat or after preceding reheating to a reheating temperature between min. 1000° C. and max. 1180° C. in several deformation passes, and subsequently coiled, wherein during hot-rolling at least the first deformation pass takes place in the austenitic region and at least one further deformation pass takes place in the two-phase mixing region austenite/ferrite, and wherein during rolling in the two-phase mixing region a total deformation epsilonh of at least 35% is achieved.
IPC 1-7
IPC 8 full level
C21D 8/12 (2006.01); C22C 38/00 (2006.01); C22C 38/14 (2006.01); H01F 1/16 (2006.01)
CPC (source: EP KR US)
C21D 6/008 (2013.01 - KR); C21D 8/1222 (2013.01 - EP KR US); C21D 8/1233 (2013.01 - KR); C21D 8/1261 (2013.01 - EP KR US); C21D 8/1266 (2013.01 - KR); C21D 8/1272 (2013.01 - KR); C22C 38/02 (2013.01 - KR); C21D 8/1272 (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
DOCDB simple family (publication)
US 6773514 B1 20040810; AT E230803 T1 20030115; AU 3965500 A 20010122; BR 0012227 A 20020402; DE 19930519 C1 20000914; DE 50001064 D1 20030213; EP 1192287 A1 20020403; EP 1192287 B1 20030108; ES 2189751 T3 20030716; JP 2003504508 A 20030204; JP 2009149993 A 20090709; JP 5529418 B2 20140625; KR 100707503 B1 20070416; KR 20020035827 A 20020515; MX PA02000156 A 20020730; PL 194908 B1 20070731; PL 353181 A1 20031103; WO 0102610 A1 20010111
DOCDB simple family (application)
US 3025902 A 20020606; AT 00918861 T 20000407; AU 3965500 A 20000407; BR 0012227 A 20000407; DE 19930519 A 19990705; DE 50001064 T 20000407; EP 0003125 W 20000407; EP 00918861 A 20000407; ES 00918861 T 20000407; JP 2001508381 A 20000407; JP 2009024285 A 20090204; KR 20027000106 A 20020104; MX PA02000156 A 20000407; PL 35318100 A 20000407