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公开(公告)号：US12093796B2
公开(公告)日：2024-09-17
申请号：US18293067
申请日：2022-07-13
Applicant: Primetals Technologies Austria GmbH
Inventor： Du Nguyen Duy , Katharina Freinschlag , Sergey Bragin , Klaus Jax , Axel Rimnac , Alfred Seyr , Sonja Strasser
Abstract: A method for determining mechanical properties of a first rolled material by a hybrid model that includes production datasets relating to further rolled materials, a physical production model and a statistical data model. The production dataset relating to the first rolled material is used to determine a first mechanical dataset, a further production dataset and a metallurgical dataset and also a second mechanical dataset. An averaged normalized distance value for production datasets relating to the further rolled materials is determined that is used to ascertain the mechanical properties of the rolled material as a weighted average from the first and second mechanical datasets. When creating the hybrid model, the physical production model is used to determine further production datasets relating to the further rolled goods for training the statistical data model.
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Patent Agency Ranking
公开(公告)号：US10655197B2
公开(公告)日：2020-05-19
申请号：US14888821
申请日：2014-04-04
Applicant: PRIMETALS TECHNOLOGIES AUSTRIA GMBH
Inventor： Rainer Burger , Robert Linsbod , Bernd Linzer , Josef Mikota , Axel Rimnac
Abstract: A method for determining the ferrite phase fraction xa after heating or when cooling a steel strip (2) in a metallurgic system. Also, a device for carrying out the method. A method by which the ferrite phase fraction in the steel strip (2) can be determined online, quickly and easily, includes measuring a width w1 and a temperature T1 of the steel strip (2), wherein the steel strip (2) comprises a ferrite phase fraction xa 1 during the measurements; heating or cooling the steel strip (2); when heating the steel strip (2) a phase conversion at least in part occurs, a→y from the ferrite state a into the austenitic state y and when cooling the steel strip a phase conversion at least in part occurs, from the austenitic state y into the ferrite state a; measuring of a width w and a temperature T of steel strip (2) converted at least in part; determining the ferrite phase fraction of the formula (I), wherein T0 is a reference temperature and aa and ay are the linear heat expansion coefficients of ferrite and austenite.
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公开(公告)号：US12049677B1
公开(公告)日：2024-07-30
申请号：US18566707
申请日：2022-05-20
Inventor： Erich Opitz , Lukas Pichler , Axel Rimnac , Alois Seilinger , Albrecht Sieber , Klaus Weinzierl
CPC classification number: C21D8/0263 , B21B37/76 , C21D8/0226 , B21B2261/20
Abstract: A method for cooling a rolled product in a cooling section which is located upstream of a finishing train of a hot rolling mill. The cooling section includes a cooling device which can deliver a coolant flow of a coolant onto a rolled product surface of the rolled product. In the method, a coolant flow is delivered, by means of each cooling device and in each cooling section pass, onto the rolled product surface, which flow is set to a set value that is assigned to the relevant cooling device for the cooling section pass. The set values for a cooling section pass are determined in a simulation of the cooling section pass so that surface temperatures, determined in the simulation, of the rolled product surface upon leaving active regions of the cooling device do not exceed a minimum value for a surface temperature of the rolled product surface.
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公开(公告)号：US20220088654A1
公开(公告)日：2022-03-24
申请号：US17479209
申请日：2021-09-20
Applicant: Primetals Technologies Austria GmbH
Inventor： Axel Rimnac , Roman Winkler
Abstract: A combined casting and rolling installation and to a method for operating the combined casting and rolling installation. The combined casting and rolling installation comprises a rough-rolling mill train, a discharging device, a first transporting device, a quenching device, and at least one severing device. The rough-rolling mill train is configured to roll a continuously cast hot billet to form a rough-rolled strip. The discharging device is downstream of the rough-rolling mill train with respect to a conveying direction of the rough-rolled strip. The severing device is between the rough-rolling mill train and the discharging device and cuts up a first sub-portion of the rough-rolled strip into a rough-rolled strip piece. The discharging device discharges the rough-rolled strip piece. The first transporting device connects the severing device to the quenching device and transports the rough-rolled strip piece to the quenching device, which is configured to quench the rough-rolled strip piece.
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公开(公告)号：US12246365B2
公开(公告)日：2025-03-11
申请号：US17479209
申请日：2021-09-20
Applicant: Primetals Technologies Austria GmbH
Inventor： Axel Rimnac , Roman Winkler
Abstract: A combined casting and rolling installation and to a method for operating the combined casting and rolling installation. The combined casting and rolling installation comprises a rough-rolling mill train, a discharging device, a first transporting device, a quenching device, and at least one severing device. The rough-rolling mill train is configured to roll a continuously cast hot billet to form a rough-rolled strip. The discharging device is downstream of the rough-rolling mill train with respect to a conveying direction of the rough-rolled strip. The severing device is between the rough-rolling mill train and the discharging device and cuts up a first sub-portion of the rough-rolled strip into a rough-rolled strip piece. The discharging device discharges the rough-rolled strip piece. The first transporting device connects the severing device to the quenching device and transports the rough-rolled strip piece to the quenching device, which is configured to quench the rough-rolled strip piece.
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公开(公告)号：US20240263263A1
公开(公告)日：2024-08-08
申请号：US18566707
申请日：2022-05-20
Inventor： Erich Opitz , Lukas Pichler , Axel Rimnac , Alois Seilinger , Albrecht Sieber , Klaus Weinzierl
CPC classification number: C21D8/0263 , B21B37/76 , C21D8/0226 , B21B2261/20
Abstract: A method for cooling a rolled product in a cooling section which is located upstream of a finishing train of a hot rolling mill. The cooling section includes a cooling device which can deliver a coolant flow of a coolant onto a rolled product surface of the rolled product. In the method, a coolant flow is delivered, by means of each cooling device and in each cooling section pass, onto the rolled product surface, which flow is set to a set value that is assigned to the relevant cooling device for the cooling section pass. The set values for a cooling section pass are determined in a simulation of the cooling section pass so that surface temperatures, determined in the simulation, of the rolled product surface upon leaving active regions of the cooling device do not exceed a minimum value for a surface temperature of the rolled product surface.
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