Global Patent Index - EP 1596999 B1

EP 1596999 B1 20061220 - METHOD FOR REGULATING THE TEMPERATURE OF A METAL STRIP, ESPECIALLY IN A COOLING PATH

Title (en)

METHOD FOR REGULATING THE TEMPERATURE OF A METAL STRIP, ESPECIALLY IN A COOLING PATH

Title (de)

VERFAHREN ZUR REGELUNG DER TEMPERATUR EINES METALLBANDES, INSBESONDERE IN EINER KÜHLSTRECKE

Title (fr)

PROCEDE DE REGULATION DE LA TEMPERATURE D'UNE BANDE METALLIQUE, EN PARTICULIER DANS UN PARCOURS DE REFROIDISSEMENT

Publication

EP 1596999 B1 20061220 (DE)

Application

EP 04710798 A 20040213

Priority

  • EP 2004001365 W 20040213
  • DE 10308222 A 20030225
  • DE 10321792 A 20030514

Abstract (en)

[origin: WO2004076085A2] The invention relates to a method for controlling or regulating the temperature of a metal strip in a cooling path (4) of a hot rolling system. A desired temperature gradient is compared to an actual temperature gradient in order to determine adjusting signals for the cooling path (4). At least one target function is formed for actuators of the cooling strip (4), taking into account auxiliary conditions, and said target function is solved as a quadratic optimisation problem for the purpose of model predictive regulation. The invention also relates to an overlapping regulation for the finishing train and the cooling path of the hot rolling system.

IPC 8 full level

B21B 37/74 (2006.01)

CPC (source: EP US)

B21B 37/74 (2013.01 - EP US)

Designated contracting state (EPC)

AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PT RO SE SI SK TR

DOCDB simple family (publication)

WO 2004076085 A2 20040910; WO 2004076085 A3 20041021; AT E348671 T1 20070115; DE 502004002370 D1 20070201; EP 1596999 A2 20051123; EP 1596999 B1 20061220; EP 1596999 B2 20110525; JP 2006518669 A 20060817; NO 20054189 L 20050909; US 2006225474 A1 20061012; US 7251971 B2 20070807

DOCDB simple family (application)

EP 2004001365 W 20040213; AT 04710798 T 20040213; DE 502004002370 T 20040213; EP 04710798 A 20040213; JP 2006501836 A 20040213; NO 20054189 A 20050909; US 54570105 A 20050816