EP 3899059 A1 20211027 - METHOD FOR PRODUCING THERMO-MECHANICALLY PRODUCED PROFILED HOT-ROLLED STRIP PRODUCTS
Title (en)
METHOD FOR PRODUCING THERMO-MECHANICALLY PRODUCED PROFILED HOT-ROLLED STRIP PRODUCTS
Title (de)
VERFAHREN ZUR HERSTELLUNG VON THERMO-MECHANISCH HERGESTELLTEN PROFILIERTEN WARMBANDERZEUGNISSEN
Title (fr)
PROCÉDÉ DE FABRICATION DE PRODUITS DE TYPE FEUILLARD À CHAUD PROFILÉS OBTENUS PAR VOIE THERMOMÉCANIQUE
Publication
Application
Priority
- DE 102018132816 A 20181219
- EP 2019086052 W 20191218
Abstract (en)
[origin: WO2020127555A1] The invention relates to a method for producing thermo-mechanically produced hot-rolled strip products. A steel alloy is melted, and the steel alloy is set such that a recrystallization is suppressed during the hot rolling process. The melted steel alloy is cast into slabs, and the slabs are hot-rolled to a desired degree of formation with a desired strip thickness after being heated to a temperature above Ac3, wherein the strip is cooled to room temperature after the rolling process and is momentarily heated to a temperature of > Ac3 for hardening purposes and then re-cooled. The invention is characterized in that the heating process is carried out with a temperature increase of more than 5 K/s, preferably more than 10 K/s, particularly more than 50 K/s, in particular more than 100 K/s, and is maintained at a desired target temperature for 0.5 to 60 s, and the cooling process is then carried out. The steel strip or the blank, which has been produced by thermo-mechanical rolling, is profiled into a component in a formation process.
IPC 8 full level
C21D 1/18 (2006.01); C21D 1/25 (2006.01); C21D 1/34 (2006.01); C21D 1/42 (2006.01); C21D 6/00 (2006.01); C21D 8/02 (2006.01); C21D 9/08 (2006.01); C21D 9/46 (2006.01); C22C 38/00 (2006.01); C22C 38/02 (2006.01); C22C 38/04 (2006.01); C22C 38/06 (2006.01); C22C 38/08 (2006.01); C22C 38/12 (2006.01); C22C 38/14 (2006.01); C22C 38/16 (2006.01); C22C 38/42 (2006.01); C22C 38/44 (2006.01); C22C 38/46 (2006.01); C22C 38/48 (2006.01); C22C 38/50 (2006.01)
CPC (source: EP US)
C21D 1/25 (2013.01 - EP); C21D 1/34 (2013.01 - EP); C21D 1/42 (2013.01 - EP US); C21D 6/004 (2013.01 - US); C21D 6/005 (2013.01 - US); C21D 6/008 (2013.01 - US); C21D 8/0205 (2013.01 - US); C21D 8/0226 (2013.01 - EP US); C21D 8/0247 (2013.01 - EP); C21D 8/0263 (2013.01 - EP US); C21D 8/105 (2013.01 - EP); C21D 9/085 (2013.01 - EP); C21D 9/46 (2013.01 - EP); C21D 9/52 (2013.01 - US); C22C 38/001 (2013.01 - EP US); C22C 38/002 (2013.01 - US); C22C 38/02 (2013.01 - EP US); C22C 38/04 (2013.01 - EP); C22C 38/06 (2013.01 - EP US); C22C 38/08 (2013.01 - EP); C22C 38/12 (2013.01 - EP); C22C 38/14 (2013.01 - EP); C22C 38/16 (2013.01 - EP); C22C 38/42 (2013.01 - EP US); C22C 38/44 (2013.01 - EP US); C22C 38/46 (2013.01 - EP US); C22C 38/48 (2013.01 - EP US); C22C 38/50 (2013.01 - EP US); C22C 38/54 (2013.01 - EP US); C22C 38/58 (2013.01 - EP US); C21D 2211/008 (2013.01 - EP US); Y02P 10/25 (2015.11 - EP)
Citation (search report)
See references of WO 2020127555A1
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)
WO 2020127555 A1 20200625; DE 102018132816 A1 20200625; EP 3899059 A1 20211027; US 2022010404 A1 20220113
DOCDB simple family (application)
EP 2019086052 W 20191218; DE 102018132816 A 20181219; EP 19832074 A 20191218; US 201917413364 A 20191218