Global Patent Index - EP 3993918 B1

EP 3993918 B1 20240327 - METHOD FOR CONTROLLING A COOLING DEVICE IN A ROLLING TRAIN

Title (en)

METHOD FOR CONTROLLING A COOLING DEVICE IN A ROLLING TRAIN

Title (de)

VERFAHREN ZUR STEUERUNG EINER KÜHLEINRICHTUNG IN EINER WALZSTRASSE

Title (fr)

PROCÉDÉ POUR COMMANDER UN DISPOSITIF DE REFROIDISSEMENT DANS UN TRAIN DE LAMINAGE

Publication

EP 3993918 B1 20240327 (DE)

Application

EP 20736932 A 20200624

Priority

  • DE 102019209660 A 20190702
  • DE 102019216261 A 20191023
  • EP 2020067681 W 20200624

Abstract (en)

[origin: WO2021001239A1] Method and control device for controlling a cooling device (10), which is designed for controlling the temperature of a rolled product, preferably metal strip (B), which runs through the cooling device (10) along a conveying direction (F), wherein the cooling device (10) is preferably arranged upstream of a rolling train and the method comprises: Determining a total enthalpy of the system formed by the rolled product; determining a measure of the formation of scale, which preferably comprises a scale factor that depends on the chemical composition and the surface temperature of the rolled product; calculating a temperature distribution and/or average temperature in the rolled product on the basis of a temperature calculation model that allows for the determined total enthalpy and the measure of the formation of scale; and setting a cooling output of the cooling device (10) while taking into account the calculated temperature distribution and/or average temperature in the rolled product.

IPC 8 full level

B21B 45/02 (2006.01)

CPC (source: CN EP US)

B21B 37/74 (2013.01 - EP US); B21B 45/0218 (2013.01 - CN EP US); B21B 45/0233 (2013.01 - CN US); B21B 38/006 (2013.01 - US); B21B 2038/004 (2013.01 - 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

DOCDB simple family (publication)

DE 102019216261 A1 20210107; BR 112021026886 A2 20220215; CN 114126777 A 20220301; CN 114126777 B 20231027; EP 3993918 A1 20220511; EP 3993918 B1 20240327; TW 202110549 A 20210316; TW I754979 B 20220211; US 2022371066 A1 20221124; WO 2021001239 A1 20210107

DOCDB simple family (application)

DE 102019216261 A 20191023; BR 112021026886 A 20200624; CN 202080049089 A 20200624; EP 2020067681 W 20200624; EP 20736932 A 20200624; TW 109122048 A 20200630; US 202017618968 A 20200624