EP 3194087 A1 20170726 - WIDTH ADJUSTMENT IN A FINISHING TRAIN
Title (en)
WIDTH ADJUSTMENT IN A FINISHING TRAIN
Title (de)
BREITENEINSTELLUNG BEI EINER FERTIGSTRASSE
Title (fr)
RÉGLAGE DE LARGEUR D'UNE LIGNE DE FABRICATION
Publication
Application
Priority
- EP 14185055 A 20140917
- EP 2015069501 W 20150826
Abstract (en)
[origin: WO2016041746A1] Before the rolling of a metal strip (1) on a finishing train (3), the actual width (b0) and actual temperature (T0) of portions (9) of the metal strip (1) are respectively detected. Variables (bF, TF) derived from the detected variables (b0, T0) and the corresponding setpoint variables (b*, T*) are assigned to the portions (9). The portions (9) of the metal strip (1) are tracked while they run through the finishing train (3). The rolling stands (5) are respectively assigned a width controlling device (13). The width controlling devices (13) determine from various input variables the setpoint width (b*) and the actual width (b) after the rolling in the assigned rolling stand (5b). The width controlling devices (13) also determine a downstream additional setpoint value (δZ2*), by which the desired tension (Z2*) downstream of the assigned rolling stand (5b) is corrected in order to bring the actual width (b) closer to the setpoint width (b*). The downstream additional setpoint value (δZ2*) is both taken into account in the determination of the actual width (b) and fed to a tension controller (21), which sets an actual tension (Z2), prevailing in the metal strip (1) downstream of the assigned rolling stand (5b), in accordance with the corrected setpoint tension (Z2*). Used inter alia for the determination of the downstream additional setpoint value (δZ2*) is the difference (δb) between the setpoint width (b*) and the actual width (b) of a portion (9) of the metal strip (1) that is located at a predetermined point downstream of the assigned rolling stand (5b).
IPC 8 full level
B21B 37/22 (2006.01)
CPC (source: CN EP RU US)
B21B 37/22 (2013.01 - CN EP RU US); B21B 37/50 (2013.01 - EP US); B21B 38/006 (2013.01 - EP US); B21B 38/04 (2013.01 - EP US); B21B 37/48 (2013.01 - CN EP US); B21B 37/50 (2013.01 - CN); B21B 38/006 (2013.01 - CN); B21B 38/04 (2013.01 - CN); B21B 2261/06 (2013.01 - CN EP US); B21B 2261/20 (2013.01 - CN EP US); B21B 2265/06 (2013.01 - CN EP US); B21B 2273/20 (2013.01 - CN EP US)
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 2998040 A1 20160323; CN 106687229 A 20170517; CN 106687229 B 20190920; EP 3194087 A1 20170726; EP 3194087 B1 20181010; RU 2017103303 A 20181017; RU 2017103303 A3 20181025; RU 2706254 C2 20191115; US 10596608 B2 20200324; US 11318511 B2 20220503; US 2017252786 A1 20170907; US 2020246850 A1 20200806; WO 2016041746 A1 20160324
DOCDB simple family (application)
EP 14185055 A 20140917; CN 201580050335 A 20150826; EP 15756619 A 20150826; EP 2015069501 W 20150826; RU 2017103303 A 20150826; US 201515511693 A 20150826; US 202016783242 A 20200206