Global Patent Index - EP 1056890 A1

EP 1056890 A1 2000-12-06 - METHOD FOR PRODUCING NON-GRAIN ORIENTED ELECTRO SHEET STEEL

Title (en)

METHOD FOR PRODUCING NON-GRAIN ORIENTED ELECTRO SHEET STEEL

Title (de)

VERFAHREN ZUR HERSTELLUNG VON NICHTKORNORIENTIERTEM ELEKTROBLECH

Title (fr)

PROCEDE POUR LA PRODUCTION DE TOLE ELECTRIQUE A GRAINS NON ORIENTES

Publication

EP 1056890 A1 (DE)

Application

EP 99910250 A

Priority

  • DE 19807122 A
  • EP 9901123 W

Abstract (en)

[origin: DE19807122A1] The invention relates to a method for producing non-grain oriented electro sheet steel out of continuously cast slabs or thin slabs with low magnetic loss, high polarisation and good mechanical properties. The invention is characterized in that the steel slabs are hot-rolled directly after casting or after reheating to a temperature >/=900 DEG C and in that during finishing rolling two or more deformation passes are carried out in the austenite/ferrite two-phase region.

IPC 1-7 (main, further and additional classification)

C21D 8/12

IPC 8 full level (invention and additional information)

B21B 3/02 (2006.01); C21D 8/12 (2006.01); C22C 38/00 (2006.01); C22C 38/02 (2006.01); C22C 38/04 (2006.01); C22C 38/60 (2006.01); H01F 1/16 (2006.01); H01F 3/08 (2006.01)

CPC (invention and additional information)

C21D 8/1222 (2013.01); C22C 38/02 (2013.01); C22C 38/04 (2013.01); B21B 2201/04 (2013.01); B21B 2201/16 (2013.01); C21D 8/1211 (2013.01); C21D 8/1233 (2013.01)

Citation (search report)

See references of WO 9942626A1

Designated contracting state (EPC)

AT BE DE ES FR GB IT NL SE

EPO simple patent family

DE 19807122 A1 19990909; DE 19807122 C2 20000323; AT 204917 T 20010915; AU 2927699 A 19990906; BR 9908106 A 20001031; CA 2320124 A1 19990826; EP 1056890 A1 20001206; EP 1056890 B1 20010829; ES 2163329 T3 20020116; JP 2002504624 A 20020212; PL 186500 B1 20040130; PL 342361 A1 20010604; US 6503339 B1 20030107; WO 9942626 A1 19990826

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