EP 3016754 B2 20240605 - METHOD FOR HOT ROLLING STEEL STRIP
Title (en)
METHOD FOR HOT ROLLING STEEL STRIP
Title (de)
VERFAHREN ZUM WARMWALZEN VON STAHLBAND
Title (fr)
PROCÉDÉ POUR LAMINER À CHAUD DES FEUILLARDS D'ACIER
Publication
Application
Priority
- DE 102013107010 A 20130703
- EP 2014063955 W 20140701
Abstract (en)
[origin: WO2015000895A1] The invention relates to a method and a plant for hot rolling steel strip (S), wherein the plant has a hot rolling relay (2) which comprises a plurality of roll stands (F1 - F7) which are successively passed through in the conveying direction (F) of the steel strip (S) to be hot rolled, and a cooling section (5) for intensively cooling the hot-rolled steel strip (S) emerging from the last roll stand (F7) of the rolling relay (2). By way of the invention, it is possible, on the basis of such a conventional hot rolling plant, to produce in an operationally reliable manner hot strips with a final thickness of more than 15 mm that satisfy even the highest requirements placed on their toughness. This is achieved according to the invention in that the start of the cooling section (5), as seen in the conveying direction (F) of the steel strip (S) to be hot rolled, is moved to before the end of the hot rolling relay (2), and in that the cooling section (5) starts following the last roll stand (F5) which is passed through before entering the cooling section (5) and in which hot rolling of the steel strip (S) to be hot rolled in each case takes place.
IPC 8 full level
C21D 8/02 (2006.01)
CPC (source: EP US)
B21B 1/22 (2013.01 - US); B21B 37/74 (2013.01 - EP US); B21B 45/0218 (2013.01 - EP US); C21D 8/0226 (2013.01 - EP US); C21D 8/0263 (2013.01 - EP US); C21D 9/573 (2013.01 - EP US); F27D 15/0206 (2013.01 - EP US); B21B 1/26 (2013.01 - EP US); B21B 2001/225 (2013.01 - US); C21D 8/0231 (2013.01 - EP US)
Citation (opposition)
Opponent :
- JP 2009241113 A 20091022 - NIPPON STEEL CORP
- EP 1038978 B1 20040512 - THYSSENKRUPP STAHL AG [DE]
- E. MUTHMANN, ET AL: "Manufacturing of Large Steel Components for Nord Stream Project", 3R INTERNATIONAL. SPECIAL EDITION. STEEL PIPES, 1 February 2010 (2010-02-01), pages 26 - 31
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
DOCDB simple family (publication)
WO 2015000895 A1 20150108; CA 2914540 A1 20150108; CA 2914540 C 20180116; CN 105392574 A 20160309; CN 105392574 B 20190118; DE 102013107010 A1 20150122; EP 3016754 A1 20160511; EP 3016754 B1 20190904; EP 3016754 B2 20240605; ES 2756453 T3 20200427; JP 2016530099 A 20160929; JP 6450379 B2 20190109; KR 102212807 B1 20210205; KR 20160030218 A 20160316; MX 364428 B 20190425; PL 3016754 T3 20200228; US 10335840 B2 20190702; US 2016151814 A1 20160602
DOCDB simple family (application)
EP 2014063955 W 20140701; CA 2914540 A 20140701; CN 201480038407 A 20140701; DE 102013107010 A 20130703; EP 14736716 A 20140701; ES 14736716 T 20140701; JP 2016522581 A 20140701; KR 20167002862 A 20140701; MX 2015016716 A 20140701; PL 14736716 T 20140701; US 201414902812 A 20140701