公开(公告)号：US20200156129A1

公开(公告)日：2020-05-21

申请号：US16626173

申请日：2017-06-26

Applicant: ArcelorMittal

Inventor： Ronan JACOLOT ,  Didier HUIN ,  Christian MORETTO ,  Daniele CORSELLO

IPC: B21B37/76 ,  C21D11/00 ,  B21B45/02 ,  C21D8/02

Abstract: A method for determining the temperature of a metal strip (1) inside a cooling apparatus (4) of a hot rolling installation is implemented by an electronic device (12). This method includes acquiring a temperature measure of a strip portion at a current time instant; estimating, at the current time instant, a heat flux extracted from the strip portion inside the cooling apparatus according to a thermal model, and computing a strip portion temperature at a next time instant from the acquired temperature measure and the estimated extracted heat flux. The thermal model models an air cooling of the strip portion, a coolant header cooling of the strip portion by a coolant header and a remaining coolant cooling of the strip portion, wherein for the coolant header cooling the model models both an impingement cooling of the strip portion and a parallel flow cooling of the strip portion.

公开(公告)号：US20240157421A1

公开(公告)日：2024-05-16

申请号：US18420054

申请日：2024-01-23

Applicant: ArcelorMittal

Inventor： Ronan JACOLOT ,  Didier HUIN ,  Christian MORETTO ,  Daniele CORSELLO

IPC: B21B37/76 ,  B21B45/02 ,  C21D1/84 ,  C21D8/02 ,  C21D9/46 ,  C21D11/00 ,  G01K13/04 ,  G01K17/08

CPC classification number: B21B37/76 ,  B21B45/0218 ,  C21D1/84 ,  C21D8/0263 ,  C21D9/46 ,  C21D11/005 ,  G01K13/04 ,  G01K17/08

Abstract: A method for determining the temperature of a metal strip (1) inside a cooling apparatus (4) of a hot rolling installation is implemented by an electronic device (12). This method includes acquiring a temperature measure of a strip portion at a current time instant; estimating, at the current time instant, a heat flux extracted from the strip portion inside the cooling apparatus according to a thermal model, and computing a strip portion temperature at a next time instant from the acquired temperature measure and the estimated extracted heat flux. The thermal model models an air cooling of the strip portion, a coolant header cooling of the strip portion by a coolant header and a remaining coolant cooling of the strip portion, wherein for the coolant header cooling the model models both an impingement cooling of the strip portion and a parallel flow cooling of the strip portion.

公开(公告)号：US20240026487A1

公开(公告)日：2024-01-25

申请号：US18265863

申请日：2021-12-08

Applicant: ArcelorMittal

Inventor： Florence BERTRAND ,  Didier HUIN ,  Hubert SAINT-RAYMOND

IPC: C21D9/46 ,  C22C38/04 ,  C22C38/02

CPC classification number: C21D9/46 ,  C22C38/04 ,  C22C38/02

Abstract: A method for the manufacture of a steel sheet, in a device including a pre-heating section, a heating section having a maximal heating rate and a soaking section including a calibrating step, a recrystallization annealing and a soaking and a coating step. The calibration step permits to define a lower dew point permitting to achieve a predefined quality target.