公开(公告)号：US11319611B2

公开(公告)日：2022-05-03

申请号：US16084595

申请日：2017-03-03

Applicant: SMS Group GmbH

Inventor： Mostafa Biglari ,  Holger Behrens ,  Carsten Andreas Klein ,  Christian Klinkenberg ,  Lutz Kuemmel ,  Ulrich Sommers

IPC: C21D11/00 ,  C21D8/02 ,  B21B37/76 ,  C21D8/04 ,  C21D9/46 ,  B21B37/74 ,  G05B19/418 ,  B21B1/22 ,  C21D9/56 ,  C21D9/573 ,  C23C2/28 ,  C23C2/40 ,  G01N23/2055 ,  G05B13/02

Abstract: The invention relates to a method for rolling a metal product (1), wherein the metal product is subjected to a rolling operation at a first station (2), which rolling operation is controlled by a control device (3), wherein the product (1) is subject to a measurement at a second station (4), wherein the product (1) is subjected to a further processing operation at a third station (6), and wherein the product (1) is in a specified quality at a fourth station (7). In order to increase the quality of the produced strip, the invention provides that the method has the following steps: a) measuring the value of a material property (IW) that the second station (4); b) feeding the value measured at the second station (4) to the control device (3), comparing the measured value with a value (SW) stored in the control device (3), and adjusting a parameter (PPI) if the measured value deviates from the stored value (SW), e) measuring a value of a quality material property (Q) at the fourth station (7); d) comparing the measured value with a stored value, and initiating a measure to influence the quality material property (Q) if the measured value deviates from the stored value beyond a permissible tolerance.

公开(公告)号：US20190071750A1

公开(公告)日：2019-03-07

申请号：US16084595

申请日：2017-03-03

Applicant: SMS Group GmbH

Inventor： Mostafa Biglari ,  Holger Behrens ,  Carsten Andreas Klein ,  Christian Klinkenberg ,  Lutz Kuemmel ,  Ulrich Sommers

IPC: C21D11/00 ,  C21D9/56 ,  C21D9/573 ,  C21D8/02 ,  C23C2/40 ,  C23C2/28 ,  G01N23/2055 ,  B21B1/22

Abstract: The invention relates to a method for rolling a metal product (1), wherein the metal product is subjected to a rolling operation at a first station (2), which rolling operation is controlled by a control device (3), wherein the product (1) is subject to a measurement at a second station (4), wherein the product (1) is subjected to a further processing operation at a third station (6), and wherein the product (1) is in a specified quality at a fourth station (7). In order to increase the quality of the produced strip, the invention provides that the method has the following steps: a) measuring the value of a material property (IW) that the second station (4); b) feeding the value measured at the second station (4) to the control device (3), comparing the measured value with a value (SW) stored in the control device (3), and adjusting a parameter (PPI) if the measured value deviates from the stored value (SW), e) measuring a value of a quality material property (Q) at the fourth station (7); d) comparing the measured value with a stored value, and initiating a measure to influence the quality material property (Q) if the measured value deviates from the stored value beyond a permissible tolerance

公开(公告)号：US12291757B2

公开(公告)日：2025-05-06

申请号：US17608923

申请日：2020-04-23

Applicant: SMS GROUP GMBH

Inventor： Ulrich Sommers ,  Thomas Daube ,  Alexandre Lhoest ,  Holger Behrens

IPC: C21D11/00 ,  C21D9/00 ,  C21D9/46 ,  C22C38/02 ,  C22C38/04 ,  G05B13/04

Abstract: A heat-treatment method for controlling austenite content in steel during conveying, heating and cooling the steel though a furnace. The method includes heating the steel until reaching a first location, then cooling the steel until reaching a downstream second or third location in the furnace. First, a quality window of the austenite content having minimum/maximum values at the second or third locations is determined. Upstream from the second/third locations, temperature of the steel for the second/third locations is predicted by a heat-transfer equation and/or conveyance speed of the steel through the furnace. The austenite content is then predicted at the second/third locations by metallurgical/data-based modelling using the predicted temperature. The furnace temperature and/or conveyance speed is adjusted when the predicted steel austenite content for the second/third locations is outside the quality window, whereby after the furnace adjustment, the predicted austenite content for the second/third locations falls within the quality window.