EP 0725152 B1 20000308 - Method and device for cooling hot-rolled profiles
Title (en)
Method and device for cooling hot-rolled profiles
Title (de)
Verfahren und Vorrichtung zum Abkühlen von warmgewalzten Profilen
Title (fr)
Procédé et dispostif de refroidissement de profilés laminés à chaud
Publication
Application
Priority
DE 19503747 A 19950204
Abstract (en)
[origin: EP0725152A1] Process for cooling hot rolled sections from rolling heat,where there have parts of differing mass (1 - 5) distributed over their cross section, e.g. rail sections, whereby radiant heat sensors (30 - 32) in conjunction with a computer (40) and appropriate program are used to establish the heat to be abstracted from each of the section parts (10 - 12) according to mass (1 - 5) and temperature and the volume of cooling media (48) required therefore, followed by controlled cooling of the differing section parts (10 - 12) such that the transformation lines (Ar3 / Ar1) in the change from the gamma phase to ferrite and / or pearlite with release of transformation heat are reached as quickly as possible. Process equipment is also claimed.
IPC 1-7
IPC 8 full level
B21B 1/08 (2006.01); B21B 45/02 (2006.01); C21D 9/04 (2006.01); C21D 11/00 (2006.01); C21D 1/02 (2006.01); C21D 1/667 (2006.01)
CPC (source: EP KR)
C21D 1/02 (2013.01 - KR); C21D 9/0062 (2013.01 - KR); C21D 9/04 (2013.01 - EP KR); C21D 11/00 (2013.01 - KR); C21D 1/02 (2013.01 - EP); C21D 1/667 (2013.01 - EP); C21D 11/00 (2013.01 - EP); C21D 2221/02 (2013.01 - KR)
Designated contracting state (EPC)
AT BE DE ES FR GB IT LU
DOCDB simple family (publication)
EP 0725152 A1 19960807; EP 0725152 B1 20000308; AT E190360 T1 20000315; CN 1076757 C 20011226; CN 1139595 A 19970108; DE 19503747 A1 19960808; DE 59604567 D1 20000413; ES 2144161 T3 20000601; JP 4020445 B2 20071212; JP H08239719 A 19960917; KR 960031630 A 19960917
DOCDB simple family (application)
EP 96100807 A 19960120; AT 96100807 T 19960120; CN 96104086 A 19960202; DE 19503747 A 19950204; DE 59604567 T 19960120; ES 96100807 T 19960120; JP 1673496 A 19960201; KR 19960001475 A 19960124