EP 2188074 A1 20100526 - METHOD FOR OPERATING A ROLLING MILL TRAIN WITH CURVATURE RECOGNITION
Title (en)
METHOD FOR OPERATING A ROLLING MILL TRAIN WITH CURVATURE RECOGNITION
Title (de)
BETRIEBSVERFAHREN FÜR EINE WALZSTRASSE MIT KRÜMMUNGSERKENNUNG
Title (fr)
PROCÉDÉ DE FONCTIONNEMENT POUR UNE BATTERIE DE LAMINOIRS AVEC DÉTECTION DE COURBURE
Publication
Application
Priority
- EP 2008060967 W 20080821
- DE 102007043793 A 20070913
- DE 102008007247 A 20080201
Abstract (en)
[origin: WO2009037064A1] In a multi-stand rolling mill train, a strip (2) successively runs through the individual rolling stands (1). The strip (2) - always as seen in relation to a rolling centre line (7) - is threaded into each of the rolling stands (1) with a known respective head offset (V) and a known respective inlet-side head pitch (SE), and therefore a head (8) of the strip (2) emerges from the respective rolling stand (1) with the respective head offset (V), a respective outlet-side head pitch (SA) and a respective outlet-side head curvature (K). The respective outlet-side head pitch (SA) is determined on the basis of the respective inlet-side head pitch (SE) and a respective pass reduction which takes place in the respective rolling stand (1). The respective outlet-side head curvature (K) of the strip (2) is determined on the basis of respective measured data and respective further data. The respective outlet-side head curvature (K) is used to determine a respective control intervention (S) for the respective rolling stand (1) and/or the rolling stand (1) arranged directly downstream of the respective rolling stand (1) and to drive the corresponding rolling stand (1) in accordance with the respective determined control intervention (S).
IPC 8 full level
B21B 37/68 (2006.01)
CPC (source: EP US)
B21B 37/68 (2013.01 - EP US); B21B 37/28 (2013.01 - EP US); B21B 2263/02 (2013.01 - EP US); B21B 2273/04 (2013.01 - EP US); B21B 2273/14 (2013.01 - EP US)
Citation (search report)
See references of WO 2009037064A1
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MT NL NO PL PT RO SE SI SK TR
Designated extension state (EPC)
AL BA MK RS
DOCDB simple family (publication)
DE 102008007247 A1 20090319; BR PI0816981 A2 20150324; BR PI0816981 B1 20191022; CN 101801553 A 20100811; CN 101801553 B 20120905; EP 2188074 A1 20100526; EP 2188074 B1 20121121; PL 2188074 T3 20130430; RU 2010114570 A 20111020; RU 2481166 C2 20130510; US 2010242566 A1 20100930; US 8752409 B2 20140617; WO 2009037064 A1 20090326
DOCDB simple family (application)
DE 102008007247 A 20080201; BR PI0816981 A 20080821; CN 200880107161 A 20080821; EP 08803135 A 20080821; EP 2008060967 W 20080821; PL 08803135 T 20080821; RU 2010114570 A 20080821; US 67760508 A 20080821