EP 3132062 A1 20170222 - METHOD AND DEVICE FOR PRODUCING A STRIP STEEL
Title (en)
METHOD AND DEVICE FOR PRODUCING A STRIP STEEL
Title (de)
VERFAHREN UND VORRICHTUNG ZUR HERSTELLUNG EINES BANDSTAHLS
Title (fr)
PROCÉDÉ ET DISPOSITIF DE FABRICATION D'UNE FEUILLE D'ACIER
Publication
Application
Priority
- EP 14164750 A 20140415
- EP 2015058213 W 20150415
Abstract (en)
[origin: WO2015158795A1] The invention relates to a method and to a device for producing a steel strip, in particular a steel strip having a bainitic microstructure, such as for example a spring steel strip or a punching tool, wherein the steel strip is made to pass continuously through the following treatment steps: austenitization of the steel strip at a first temperature above the austenitization temperature; quenching of the steel strip, by means of a gaseous quenchant, to a lower, second temperature selected in accordance with a desired steel microstructure. According to the invention, the gaseous quenchant is conducted onto the steel strip in such a manner that uniform cooling is achieved over the width of the steel strip.
IPC 8 full level
C21D 1/74 (2006.01); C21D 1/19 (2006.01); C21D 1/20 (2006.01); C21D 1/613 (2006.01); C21D 1/62 (2006.01); C21D 1/667 (2006.01); C21D 1/767 (2006.01); C21D 9/573 (2006.01); C21D 11/00 (2006.01); F27B 9/04 (2006.01); F27B 9/20 (2006.01); F27D 9/00 (2006.01)
CPC (source: CN EP KR US)
C21D 1/19 (2013.01 - EP KR US); C21D 1/20 (2013.01 - EP KR US); C21D 1/613 (2013.01 - CN EP KR US); C21D 1/62 (2013.01 - EP KR US); C21D 1/667 (2013.01 - EP US); C21D 1/74 (2013.01 - EP KR US); C21D 1/767 (2013.01 - EP KR US); C21D 9/52 (2013.01 - CN); C21D 9/573 (2013.01 - EP KR US); C21D 11/005 (2013.01 - EP KR US); F27B 9/20 (2013.01 - EP KR US); F27B 9/28 (2013.01 - KR); F27B 9/40 (2013.01 - KR); C21D 2211/002 (2013.01 - CN EP US); F27D 2009/0008 (2013.01 - EP US)
Citation (search report)
See references of WO 2015158795A1
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated extension state (EPC)
BA ME
DOCDB simple family (publication)
EP 2933342 A1 20151021; BR 112016023820 A2 20170815; CN 106460081 A 20170222; EP 3132062 A1 20170222; JP 2017514996 A 20170608; KR 20170012224 A 20170202; US 2017044643 A1 20170216; WO 2015158795 A1 20151022
DOCDB simple family (application)
EP 14164750 A 20140415; BR 112016023820 A 20150415; CN 201580020127 A 20150415; EP 15716060 A 20150415; EP 2015058213 W 20150415; JP 2016562215 A 20150415; KR 20167031488 A 20150415; US 201515304403 A 20150415