US 12,226,814 B2
Method for controlling a cooling device in a rolling train
Thomas Heimann, Iserlohn (DE); August Sprock, Duesseldorf (DE); Christoph Hassel, Duisburg (DE); and Heinz-Juergen Oudehinken, Essen (DE)
Assigned to SMS GROUP GMBH, Duesseldorf (DE)
Appl. No. 17/618,968
Filed by SMS GROUP GMBH, Duesseldorf (DE)
PCT Filed Jun. 24, 2020, PCT No. PCT/EP2020/067681
§ 371(c)(1), (2) Date Dec. 14, 2021,
PCT Pub. No. WO2021/001239, PCT Pub. Date Jan. 7, 2021.
Claims priority of application No. 102019209660.3 (DE), filed on Jul. 2, 2019; and application No. 102019216261.4 (DE), filed on Oct. 23, 2019.
Prior Publication US 2022/0371066 A1, Nov. 24, 2022
Int. Cl. B21B 37/74 (2006.01); B21B 45/02 (2006.01); B21B 38/00 (2006.01)
CPC B21B 45/0233 (2013.01) [B21B 37/74 (2013.01); B21B 45/0218 (2013.01); B21B 2038/004 (2013.01); B21B 38/006 (2013.01)] 14 Claims
OG exemplary drawing
 
1. Method for controlling a cooling device (10), which is configured to control the temperature of a rolling stock, preferably metal strip (B), which runs through the cooling device (10) along a conveying direction (F), the cooling device (10) being arranged upstream of a rolling train, the method comprising:
determining a total enthalpy of the system formed by the rolling stock;
determining a measure for the formation of scale, which preferably comprises a scale factor that depends on the chemical composition and the surface temperature of the rolling stock;
calculating a temperature distribution and/or average temperature in the rolling stock on the basis of a temperature calculation model, in which the determined total enthalpy and the measure for the formation of scale are included; and
setting a cooling performance of the cooling device (10) taking into account the calculated temperature distribution and/or average temperature in the rolling stock.