Global Patent Index - EP 0693562 B1

EP 0693562 B1 2000-03-29 - Process and apparatus for heat-treating shaped rolled pieces

Title (en)

Process and apparatus for heat-treating shaped rolled pieces

Title (de)

Verfahren und Vorrichtung zur Wärmebehandlung von profiliertem Walzgut

Title (fr)

Procédé et appareil de traitement thermique de laminés profilés

Publication

EP 0693562 B1 (DE)

Application

EP 95890136 A

Priority

AT 143194 A

Abstract (en)

[origin: EP0693562A1] Method for treatment of rolled profile material comprises straightening rolled profile (1) with plastic forming at 750-1100 degrees C temp.. Initial cooling takes place with locally equal intensity to 5-120 degrees C temp. above the Ar point of the material. This is followed by cooling which has equal intensity in the longitudinal direction of the profile, but varies along the circumference of the profile cross section to ensure a martensitic-free fine pearlitic structure. Final cooling takes place with locally equal intensity down to room temp.. Also claimed is the appts. for carrying out the above heat treating, novel in that is has a preparatory section (A), a second cooling section (B) and a final cooling section (C). <IMAGE>

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

C21D 9/04

IPC 8 full level (invention and additional information)

C21D 9/04 (2006.01); C21D 1/63 (2006.01); C21D 8/00 (2006.01)

IPC 8 main group level (invention and additional information)

C21D 6/00 (2006.01); E01B 5/00 (2006.01)

CPC (invention and additional information)

C21D 1/63 (2013.01); C21D 9/04 (2013.01); C21D 8/00 (2013.01); C21D 2211/009 (2013.01); C21D 2221/02 (2013.01)

Designated contracting state (EPC)

AT BE CH DE DK ES FR GB GR IE IT LI LU NL PT SE

EPO simple patent family

EP 0693562 A1 19960124; EP 0693562 B1 20000329; AT 191241 T 20000415; AT 402941 B 19970925; AT A143194 A 19970215; AU 2334995 A 19960201; AU 702091 B2 19990211; BR 9503367 A 19960910; CA 2154090 A1 19960120; CA 2154090 C 20050111; CN 1045214 C 19990922; CN 1123331 A 19960529; CZ 290866 B6 20021113; CZ 9501861 A3 19960214; DE 59508080 D1 20000504; ES 2145247 T3 20000701; HR P950386 A2 19970430; HR P950386 B1 20000229; HU 218230 B 20000628; HU 9502162 D0 19950928; HU T72292 A 19960429; JP 3811865 B2 20060823; JP H08170120 A 19960702; KR 100372402 B1 20030509; PL 178079 B1 20000229; PL 309657 A1 19960122; RU 2101369 C1 19980110; SI 9500230 A 19970228; SI 9500230 B 20011231; SK 282161 B6 20011106; SK 90195 A3 19960306; TW 300920 B 19970321

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