EP 1194599 A1 20020410 - 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 D'UNE TOLE ELECTRIQUE A GRAINS NON ORIENTES
Publication
Application
Priority
- DE 19930518 A 19990705
- EP 0003901 W 20000429
Abstract (en)
[origin: WO0102611A1] The invention relates to a method for producing non-grain oriented electric sheet steel in which a hot rolled strip is produced from a feed material, such as cast slabs, strips, pre-strips, or thin slabs which are made of a steel containing (in weight %) C: 0.001 - 0.05 %, Si: </= 1.5 %, Al: </= 0.4 % with Si + 2Al </= 1.7 %, Mn: 0.1 - 1.2 %, optionally up to a total of 1.5 % of alloy supplements, such as P, Sn, Sb, Zr, V, Ti, N, Ni, Co, Nb and/or B, and, as a remainder, iron as well as common companion elements. The hot rolled strip is produced by hot rolling the feed material, in a plurality of deforming passes, directly from the molten state or after a preceding reheating to a reheating temperature ranging from at least 1000 DEG C to a maximum of 1180 DEG C and by subsequently coiling the same. During the hot rolling, at least the first deforming pass is carried out in the austenite range, and one or more deforming passes are subsequently carried out in the ferrite range with a total deformation epsilon h of at least 45 %.
IPC 1-7
IPC 8 full level
C21D 8/12 (2006.01)
CPC (source: EP)
C21D 8/1222 (2013.01); C21D 8/1261 (2013.01); C21D 8/1233 (2013.01); C21D 8/1272 (2013.01)
Citation (search report)
See references of WO 0102611A1
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)
WO 0102611 A1 20010111; AT E245203 T1 20030815; AU 4120600 A 20010122; DE 19930518 C1 20001012; DE 50002924 D1 20030821; EP 1194599 A1 20020410; EP 1194599 B1 20030716; ES 2202104 T3 20040401
DOCDB simple family (application)
EP 0003901 W 20000429; AT 00920746 T 20000429; AU 4120600 A 20000429; DE 19930518 A 19990705; DE 50002924 T 20000429; EP 00920746 A 20000429; ES 00920746 T 20000429