EP 1432835 B1 20050608 - METHOD FOR THERMAL TREATMENT OF RAILS
Title (en)
METHOD FOR THERMAL TREATMENT OF RAILS
Title (de)
VERFAHREN ZUR THERMISCHEN BEHANDLUNG VON SCHIENEN
Title (fr)
PROCEDE DE TRAITEMENT THERMIQUE DE RAILS
Publication
Application
Priority
- DE 10148305 A 20010929
- EP 0210512 W 20020919
Abstract (en)
[origin: US7416622B2] In order to obtain a fine-lamellar perlite structure in the edge region of the heads of rails ( 1 ), especially hot-rolled rails for carriageways or railways, by specific thermal treatment during cooling from the rolling heat without the formation of bainite, precooling ( 12 ) occurs in order to achieve a core temperature of approximately 750-850° C., and the temperature of the more intensively cooled edge region is raised by intermediate heating ( 13 ) to at least said core temperature and finally cooled ( 14 ).
IPC 1-7
IPC 8 full level
C21D 1/00 (2006.01); C21D 1/18 (2006.01); C21D 1/84 (2006.01); C21D 9/04 (2006.01); C21D 8/00 (2006.01); C21D 11/00 (2006.01)
CPC (source: EP US)
C21D 1/84 (2013.01 - EP US); C21D 9/04 (2013.01 - EP US); C21D 8/00 (2013.01 - EP US); C21D 11/005 (2013.01 - EP US); C21D 2211/009 (2013.01 - EP US)
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR IE IT LI LU MC NL PT SE SK TR
DOCDB simple family (publication)
WO 03028912 A2 20030410; WO 03028912 A3 20030912; AT E297474 T1 20050615; AU 2002338735 A1 20030414; CN 1263873 C 20060712; CN 1561399 A 20050105; DE 10148305 A1 20030424; DE 50203370 D1 20050714; EP 1432835 A2 20040630; EP 1432835 B1 20050608; ES 2243768 T3 20051201; JP 2005504174 A 20050210; JP 4317749 B2 20090819; RU 2004113116 A 20050520; RU 2272080 C2 20060320; US 2004231763 A1 20041125; US 7416622 B2 20080826
DOCDB simple family (application)
EP 0210512 W 20020919; AT 02777151 T 20020919; AU 2002338735 A 20020919; CN 02819218 A 20020919; DE 10148305 A 20010929; DE 50203370 T 20020919; EP 02777151 A 20020919; ES 02777151 T 20020919; JP 2003532222 A 20020919; RU 2004113116 A 20020919; US 48913004 A 20040305