公开(公告)号：US20220371066A1

公开(公告)日：2022-11-24

申请号：US17618968

申请日：2020-06-24

Applicant: SMS GROUP GMBH

Inventor： Thomas HEIMANN ,  August SPROCK ,  Christoph HASSEL ,  Heinz-Juergen OUDEHINKEN

IPC: B21B45/02 ,  B21B37/74

Abstract: Method and control device for controlling a cooling device (10) which is set up to control the temperature of a rolling stock, preferably metal strip (B), which the cooling device (10) runs through along a conveying direction (F), the cooling device (10) preferably in front of a rolling train is arranged and the method comprises: 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 capacity of the cooling device (10) taking into account the calculated temperature distribution and/or average temperature in the rolling stock.

公开(公告)号：US20220176429A1

公开(公告)日：2022-06-09

申请号：US17436518

申请日：2020-01-16

Applicant: SMS GROUP GMBH

Inventor： August SPROCK ,  Christoph HASSEL ,  Kai GRYBEL

IPC: B21B1/26 ,  B21B37/76 ,  B21B38/00 ,  B21B45/00

Abstract: The invention relates to a method for producing a metallic strip or sheet (1), in which the strip or sheet (1) is rolled in a multi-stand rolling mill (11) and is discharged downstream of the last roll stand (14) of the rolling mill (11) in the conveying direction (F), wherein the strip or sheet (1) is cooled in the multi-stand rolling mill (11) and/or downstream of the rolling mill (11) as viewed in conveying direction (F), wherein a temperature of the strip or sheet (1) is measured upstream of the last roll stand (14) of the rolling mill (11) as viewed in conveying direction (F). Based on this measured temperature, a temperature for the strip or sheet (1) at the exit (A) of the last roll stand (14) of the rolling mill (11), is then determined purely by calculation with the aid of a temperature calculation model, with which temperature further processes of the manufacturing method can be controlled or regulated after a comparison with a predetermined reference value.

公开(公告)号：US20210162478A1

公开(公告)日：2021-06-03

申请号：US17047192

申请日：2019-04-04

Applicant: SMS group GMBH

Inventor： August SPROCK ,  Christoph HASSEL ,  Ulrich CRAMER

IPC: B21B45/02

Abstract: A cooling device for cooling a metallic item and a method for operating the cooling device. Such cooling devices having a plurality of cooling bars arranged in parallel in groups for applying a coolant to the metallic item are known in the prior art. In order to be able to set a desired distribution function of the coolant over the width of the metallic item as precisely as possible, the cooling device provides that similar application regions in at least two cooling bars within a group are each formed differently with respect to their contour and/or with respect to their surface area.

公开(公告)号：US20230203612A1

公开(公告)日：2023-06-29

申请号：US17923393

申请日：2021-03-25

Applicant: SMS group GmbH

Inventor： Christoph HASSEL ,  August SPROCK ,  Kai GRYBEL ,  Guido BUSCHHOFF

IPC: C21D8/04 ,  B21B37/74 ,  C21D9/52

CPC classification number: C21D8/0426 ,  B21B37/74 ,  C21D9/52 ,  B21B2261/20

Abstract: A method for controlling or regulating the temperature of a steel strip in hot forming in a hot strip mill. A superordinate open-loop or closed-loop controller has a process model that predetermines the temperature development of the hot strip. The target values of the individual units are adjusted based on this predetermined temperature development.

公开(公告)号：US20230032062A1

公开(公告)日：2023-02-02

申请号：US17778162

申请日：2020-10-28

Applicant: SMS group GmbH

Inventor： Christoph HASSEL ,  Karl HOEN ,  Cosimo Andreas CECERE

IPC: B22D11/16 ,  B22D11/126 ,  B21B1/46 ,  B21B15/00

Abstract: A method for operating a system of the iron and steel industry for producing a metal product with participation of a severing or forming device. The actual value of an indicator be calculated over a length section of the metal product for the metal product to be produced. The indicator represents the resistance of the metal product to severing or forming processes. The calculated actual value pIst for the indicator p is then compared to a predefined threshold value. The severing or forming also only actually takes place when the actual value of the indicator of the metal product is less than the threshold value. If a comparison should show that the actual value of the indicator is greater than the threshold value, before the severing or forming of the metal product, a local processing of the metal product is performed in the corresponding length section.

公开(公告)号：US20220193740A1

公开(公告)日：2022-06-23

申请号：US17691557

申请日：2022-03-10

Applicant: SMS GROUP GMBH

Inventor： Thomas HEIMANN ,  Heinz-Juergen OUDEHINKEN ,  Christoph HASSEL

IPC: B21B37/74 ,  B22D11/12 ,  B22D27/04 ,  B22D11/22 ,  G01K7/42 ,  F27B9/40 ,  B21B1/22 ,  C21D1/26 ,  C21D11/00

Abstract: A method for open-loop and/or closed-loop control of a heating of a cast or rolled metal product, includes the steps of determining the total enthalpy of the metal product from a sum of the free molar enthalpies (Gibbs energy) of all phases and/or phase fractions currently present in the metal product; determining a temperature distribution within the metal product by means of a dynamic temperature calculation model using the total enthalpy determined; and open-loop and/or closed-loop controlling of the heating of the metal product as a function of at least one output variable of the temperature calculation model.

公开(公告)号：US20220126343A1

公开(公告)日：2022-04-28

申请号：US17310730

申请日：2020-02-19

Applicant: SMS group GmbH

Inventor： August SPROCK ,  Christoph HASSEL ,  Carsten Andreas KLEIN

IPC: B21B37/76 ,  B21B45/02 ,  B21B1/24 ,  C21D8/02

Abstract: A method for setting different cooling rates of metal strips or metal plates (rolling material) over the strip width of a cooling stretch in a hot-strip mill or heavy-plate mill is presented. According to the method, for the calculation of the cooling rate, the initial enthalpy distribution over the material width of the rolling material before the cooling is determined. Proceeding therefrom, a target enthalpy distribution is determined in the width direction and length direction of the rolling material while taking into account a calculation of the flatness and the mechanical properties by means of a microstructure model. Subsequently, the coolant amount and the coolant curve of the cooling stretch are set.