WO2018024693A1 - Procédé de fonctionnement d'un four de recuit pour recuire une bande métallique - Google Patents

Procédé de fonctionnement d'un four de recuit pour recuire une bande métallique Download PDF

Info

Publication number
WO2018024693A1
WO2018024693A1 PCT/EP2017/069362 EP2017069362W WO2018024693A1 WO 2018024693 A1 WO2018024693 A1 WO 2018024693A1 EP 2017069362 W EP2017069362 W EP 2017069362W WO 2018024693 A1 WO2018024693 A1 WO 2018024693A1
Authority
WO
WIPO (PCT)
Prior art keywords
metal strip
strip
temperature distribution
annealing furnace
material properties
Prior art date
Application number
PCT/EP2017/069362
Other languages
German (de)
English (en)
Inventor
Ulrich Sommers
Lutz Kümmel
Carsten Andreas Klein
Original Assignee
Sms Group Gmbh
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Sms Group Gmbh filed Critical Sms Group Gmbh
Priority to CN201780048615.3A priority Critical patent/CN109563559B/zh
Priority to EP17745739.7A priority patent/EP3494239B1/fr
Publication of WO2018024693A1 publication Critical patent/WO2018024693A1/fr

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D8/00—Modifying the physical properties by deformation combined with, or followed by, heat treatment
    • C21D8/02—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
    • C21D9/52—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for wires; for strips ; for rods of unlimited length
    • C21D9/54—Furnaces for treating strips or wire
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
    • F27D19/00—Arrangements of controlling devices
    • F27D2019/0003—Monitoring the temperature or a characteristic of the charge and using it as a controlling value
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
    • F27D19/00—Arrangements of controlling devices
    • F27D2019/0028—Regulation

Definitions

  • the invention relates to a method for operating an annealing furnace for annealing a metal strip.
  • German patent application DE 10 2013 225 579 A1 discloses a method for controlling or regulating a furnace for metal material in a production line.
  • the production line comprises an annealing furnace and at least one measuring device which is suitable for detecting at least one material property of the strip material to be treated in the production line.
  • the annealing furnace and the meter cooperate in a control loop of an automated process control.
  • the published patent teaches that the meter is arranged in the material processing direction behind the annealing furnace and recorded online a measured value, which represents a mechanical material property of the strip material. This measured value is then subsequently transmitted to the control unit.
  • European Patent Specification EP 2 742 158 B1 discloses a method for operating a continuous annealing line for processing a rolling stock, in particular a metallic strip.
  • the method provides that at least one property of the rolling stock relative to at least one point or at least a portion of the rolling stock is supplied as input to a computer-aided model.
  • the said point or section is located in front of or in the continuous annealing zone.
  • at least one material property of the rolling stock after the continuous annealing process is simulated on the basis of the input variable.
  • the simulated material property is compared with a predetermined setpoint. If the simulated material property deviates from the setpoint, at least one process variable, For example, the temperature regulated, as long as the at least one point or portion of the rolling stock is before or in the continuous annealing.
  • a method for operating an annealing furnace is based on the problem that a metal strip of a certain steel grade, when passing through preliminary processes, typically experiences fluctuations in its material property over its strip length. These fluctuations also affect the annealed band.
  • the present invention seeks to provide an alternative method of operating a furnace for annealing a metal strip in order to largely eliminate the said variations as far as possible.
  • This object is achieved by the method claimed in claim 1.
  • the subject matter of the method according to the invention is a known regulation for the temperature distribution of a metal strip with the aid of an annealing furnace.
  • the invention aims to specify a desired temperature distribution for said control.
  • the specification of the desired temperature distribution according to the invention provides the following sub-steps:
  • band data of the metal strip to be annealed Selecting a distribution of the actual material properties of the metal strip over its strip length before it enters the annealing furnace from a plurality of deposited or adapted actual material properties on the basis of the strip data; and selecting the desired temperature distribution for the metal strip over its strip length to be prescribed for the regulation as the desired temperature distribution for the metal strip associated with the selected actual material property of the metal strip.
  • the band data is at least the steel quality and the thickness of the metal strip at the entrance of the annealing furnace, preferably in addition to its chemical composition.
  • pre-process data may be used to select the distribution of the actual material property of the metal strip along its length in addition to the strip data.
  • the selected distribution of the actual material property reflects the reality better than the selection of the actual material properties without consideration of the pre-process data. Due to the more precise distribution of the actual material property, the associated desired temperature distribution for the metal strip can be selected more realistically. In turn, an even better selection and design of the desired temperature distribution is possible to compensate for the variations in the material properties of the strip.
  • the selection process for the distribution of the actual material properties can be represented even more realistically if, in addition to the band data-and optionally also in addition to the pre-process data-also measurement data on the material properties of the band for selecting the distribution of the actual material properties of the metal band be used.
  • each predefined distributions of the actual material properties of the metal strip z. B. are stored in a database.
  • the previously mentioned embodiments aimed to make the best or most realistic selection from the deposited distributions of the actual material properties of the metal strip.
  • the deposited distributions of the actual material properties of the metal strip do not map the reality accurately enough, according to a further exemplary embodiment of the invention it is also possible for the deposited distribution of the actual material properties for use for subsequent strips to be targeted to the property of the currently annealed one Metal band to adapt.
  • the adaptation takes place on the basis of the belt data and the process data from the furnace and with additional consideration of the measurement data on the material properties of the currently annealed strip, between the output of the annealing furnace and the entrance to the mill stand (M2) and / or at the output of a stretching device (M3) are measured.
  • the distribution of the actual material properties adapted in this way can then be used for subsequent bands which are considered to be similar according to a suitable criterion.
  • the selection of the target temperature distribution to be prescribed for the control then takes place on the basis of the adapted course of the actual material properties of the metal strip on the basis of a corresponding / predetermined assignment.
  • the adaptation can also with additional consideration of pre-process data, the degree of metal strip passing through the annealing furnace downstream rolling mill, the degree of stretching of the metal strip when passing the stretching device of the measured actual material properties of the metal strip at the entrance of the annealing furnace and / or take additional account of the measured material properties of the metal strip after its entry into the annealing furnace.
  • Figure 1 shows a classic control circuit for the temperature distribution in one
  • FIG. 2 shows the determination according to the invention of a desired temperature distribution for the temperature control according to FIG. 1 according to a first variant; and
  • FIG. 3 shows the determination of a desired temperature distribution for the
  • the control circuit comprises a measuring device 110 for measuring the actual temperature distribution of the metal strip over its strip length, preferably in the annealing furnace.
  • resulting from the measurement St is compared in a comparator 120 with a predetermined target temperature distribution T SO II of the metal strip 200 over its length.
  • a control deviation e possibly resulting from the comparison or subtraction is fed as input to a controller 130.
  • the controller 130 calculates an actuating signal Tsteii for a heating device in the annealing furnace which, in terms of control technology, serves as an actuator for adjusting the temperature distribution in the metal strip. In this way, the temperature distribution of the metal strip to the predetermined Target temperature distribution T SO II regulated.
  • the temperature control 100 and in particular the measuring device 1 10 are drawn in Figure 1 outside of the annealing furnace; However, they can of course also be arranged inside the annealing furnace.
  • FIG. 2 illustrates the method according to the invention for determining a suitable setpoint temperature distribution for the metal strip over its length as input variables for the temperature control of the annealing furnace according to FIG. 1.
  • FIG. 2 illustrates the determination of the desired temperature distribution according to a first variant; A second variant will be described below with reference to FIG. First of all, however, the second variant according to FIG. 2 will be described.
  • This second variant provides in a minimal configuration that initially band data of the metal strip 200 to be annealed are specified.
  • the band data is at least its steel grade and its thickness at the entrance of the annealing furnace, and preferably in addition to its chemical composition.
  • the selection of a realistic distribution of the actual material properties of the strip 200 over its strip length before its entry into the annealing furnace from a plurality of stored actual material properties is initially carried out only on the basis of the strip data.
  • that target temperature distribution for the metal strip is selected or determined over its strip length, which is assigned to the previously selected actual material property of the metal strip.
  • the selected temperature distribution Tsoii for the metal strip selected in this way serves as an input quantity or desired value specification for the temperature control according to FIG. 1.
  • pre-process data for selecting the distribution of the actual material properties of the metal strip are also used. This is particularly useful if the metal strip was subjected before its entry into the annealing furnace at least one of the following preliminary processes.
  • the preliminary processes it may, for. Example, the hot rolling of the metal strip in a hot strip mill and / or the pickling of the metal strip after hot rolling and / or the cold rolling of the metal strip after pickling act.
  • the additionally considered pre-process data can be, for example: the temperature profile of the metal strip in the hot strip mill, the velocity profile of the metal strip in the pickling line, the course of the force in the stretch rectifier, the thickness of the metal strip at the inlet and at the exit of the metal strip Hot strip mill and / or the degree of reduction, for example, the cold rolling degree of the metal strip during cold rolling.
  • the measurement data are measurement data measured on the metal strip 200.
  • the claimed method comprises a calculation step in order to select the most suitable profile of the actual material properties of the metal strip over its length from the strip data and optionally with additional consideration of the pre-process data and / or the measured data.
  • the calculation rule according to the invention can be designed to make a decision on the basis of the data mentioned for a specific deposited actual material property distribution of the metal strip over a strip length.
  • the calculation algorithm according to the invention can also be embodied, a corresponding actual material property distribution of the metal strip over its strip length from the mentioned input data, ie the strip data and optionally with additional consideration of the pre-process data and optionally with additional consideration of the measurement data a very realistic representation of the distribution of the actual Material properties of the metal strip over its tape length currently to calculate.
  • FIG. 3 shows a second variant for determining as realistic as possible distributions of the actual material properties of the metal strip. Specifically, this second variant provides that the deposited distributions of the actual material properties of the metal strip are adapted before their selection for the assignment of the desired temperature distribution to adapted curves for the actual material properties of the metal strip.
  • the adaptation is based on the belt data and the process data from the furnace as well as taking into account the measurement data on the material properties of the metal strip, which were measured between the exit of the annealing furnace and the entry into the mill stand at measuring point M2.
  • the data measured at the measuring point M3, ie the data at the output of the stretching device can also be used be used on the material properties of the metal strip for the adaptation of the deposited distributions of the actual material property for subsequent metal strips.
  • the selection of the desired temperature distribution to be prescribed for the control then takes place on the basis of the adapted course of the actual material properties.
  • Tsoii Target temperature distribution of the metal strip over its strip length Tsteii Temperature distribution as a control signal for the annealing furnace

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Mechanical Engineering (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Control Of Heat Treatment Processes (AREA)
  • Heat Treatment Of Strip Materials And Filament Materials (AREA)

Abstract

L'invention concerne un procédé de fonctionnement d'un four de recuit pour refroidir une bande métallique, présentant les étapes suivantes consistant à : définir une répartition des températures de consigne pour la bande métallique sur la longueur de la bande et réguler la répartition des températures instantanées pour la bande métallique sur la longueur de la bande par rapport à la répartition définie des températures de consigne dans le four de recuit. Pour compenser d'éventuelles oscillations de la propriété du matériau de la bande métallique sur la longueur de la bande, selon l'invention, la répartition des températures de consigne à définir pour la régulation est déterminée comme suit : définition de données de bande de la bande métallique à recuire ; sélection d'une répartition des propriétés instantanées du matériau de la bande métallique sur la longueur de la bande avant son entrée dans le four de recuit parmi une multitude de propriétés instantanées enregistrées ou adaptées de matériau à l'aide des données de bande ; et sélection de la répartition des températures de consigne à définir pour la régulation pour la bande métallique sur la longueur de la bande en tant que la répartition des températures de consigne pour la bande métallique associée à la propriété instantanée sélectionnée du matériau de la bande métallique.
PCT/EP2017/069362 2016-08-02 2017-07-31 Procédé de fonctionnement d'un four de recuit pour recuire une bande métallique WO2018024693A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CN201780048615.3A CN109563559B (zh) 2016-08-02 2017-07-31 使用于金属带材的退火的退火炉运行的方法
EP17745739.7A EP3494239B1 (fr) 2016-08-02 2017-07-31 Procédé de fonctionnement d'un four de recuit pour recuire une bande métallique

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102016214267.4A DE102016214267A1 (de) 2016-08-02 2016-08-02 Verfahren zum Betreiben eines Glühofens zum Glühen eines Metallbandes
DE102016214267.4 2016-08-02

Publications (1)

Publication Number Publication Date
WO2018024693A1 true WO2018024693A1 (fr) 2018-02-08

Family

ID=59485364

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2017/069362 WO2018024693A1 (fr) 2016-08-02 2017-07-31 Procédé de fonctionnement d'un four de recuit pour recuire une bande métallique

Country Status (4)

Country Link
EP (1) EP3494239B1 (fr)
CN (1) CN109563559B (fr)
DE (1) DE102016214267A1 (fr)
WO (1) WO2018024693A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111154965A (zh) * 2020-01-06 2020-05-15 宝钢湛江钢铁有限公司 一种适用于连续退火机组快冷段带钢温度的计算方法

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20100219567A1 (en) * 2007-02-09 2010-09-02 Hiroyuki Imanari Process line control apparatus and method for controlling process line
EP2287345A1 (fr) * 2009-07-23 2011-02-23 Siemens Aktiengesellschaft Procédé de commande et/ou de réglage d'un four à induction pour un laminoir, dispositif de commande et/ou de réglage pour un laminoir et laminoir destiné à la fabrication d'un produit de laminage
EP2557183A1 (fr) * 2011-08-12 2013-02-13 Siemens Aktiengesellschaft Procédé de fonctionnement d'une bougie continue pour le traitement d'un produit de laminage
DE102013225579A1 (de) 2013-05-22 2014-11-27 Sms Siemag Ag Vorrichtung und Verfahren zur Steuerung und/oder Regelung eines Glüh- oder Wärmebehandlungsofens einer Metallmaterial bearbeitenden Fertigungsstraße
WO2016189144A1 (fr) * 2015-05-28 2016-12-01 Sms Group Gmbh Installation de traitement thermique pour le traitement thermique d'une bande d'acier et procédé pour commander une installation de traitement thermique pour le traitement thermique d'une bande d'acier
WO2017050311A1 (fr) * 2015-09-25 2017-03-30 Sms Group Gmbh Procédé et détermination de constituants structuraux d'une ligne de recuit

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ATE419930T1 (de) * 1998-12-18 2009-01-15 Outokumpu Oy Verfahren zur herstellung von edelstahlbändern
US6830634B2 (en) * 2002-06-11 2004-12-14 Sensormatic Electronics Corporation Method and device for continuous annealing metallic ribbons with improved process efficiency
CN201828840U (zh) * 2010-09-14 2011-05-11 河南省电力公司安阳供电公司 退火炉温度自动控制系统
KR101376565B1 (ko) * 2011-12-15 2014-04-02 (주)포스코 연속 소둔라인 급냉대의 스트립 온도제어 방법 및 장치

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20100219567A1 (en) * 2007-02-09 2010-09-02 Hiroyuki Imanari Process line control apparatus and method for controlling process line
EP2287345A1 (fr) * 2009-07-23 2011-02-23 Siemens Aktiengesellschaft Procédé de commande et/ou de réglage d'un four à induction pour un laminoir, dispositif de commande et/ou de réglage pour un laminoir et laminoir destiné à la fabrication d'un produit de laminage
EP2557183A1 (fr) * 2011-08-12 2013-02-13 Siemens Aktiengesellschaft Procédé de fonctionnement d'une bougie continue pour le traitement d'un produit de laminage
EP2742158B1 (fr) 2011-08-12 2015-08-26 Primetals Technologies Germany GmbH Procédé permettant de faire fonctionner une ligne de recuit continu pour le traitement d'un produit laminé
DE102013225579A1 (de) 2013-05-22 2014-11-27 Sms Siemag Ag Vorrichtung und Verfahren zur Steuerung und/oder Regelung eines Glüh- oder Wärmebehandlungsofens einer Metallmaterial bearbeitenden Fertigungsstraße
WO2016189144A1 (fr) * 2015-05-28 2016-12-01 Sms Group Gmbh Installation de traitement thermique pour le traitement thermique d'une bande d'acier et procédé pour commander une installation de traitement thermique pour le traitement thermique d'une bande d'acier
WO2017050311A1 (fr) * 2015-09-25 2017-03-30 Sms Group Gmbh Procédé et détermination de constituants structuraux d'une ligne de recuit

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111154965A (zh) * 2020-01-06 2020-05-15 宝钢湛江钢铁有限公司 一种适用于连续退火机组快冷段带钢温度的计算方法

Also Published As

Publication number Publication date
EP3494239A1 (fr) 2019-06-12
EP3494239B1 (fr) 2020-07-22
CN109563559A (zh) 2019-04-02
DE102016214267A1 (de) 2018-02-08
CN109563559B (zh) 2020-07-31

Similar Documents

Publication Publication Date Title
DE19963186B4 (de) Verfahren zur Steuerung und/oder Regelung der Kühlstrecke einer Warmbandstrasse zum Walzen von Metallband und zugehörige Vorrichtung
EP2742158B1 (fr) Procédé permettant de faire fonctionner une ligne de recuit continu pour le traitement d'un produit laminé
EP2999935B1 (fr) Dispositif et procédé de commande et/ou de régulation d'un four de recuit ou de traitement thermique d'une chaîne de production par usinage de matériau métallique
DE4338615B4 (de) Verfahren und Vorrichtung zur Führung eines Prozesses in einem geregelten System
EP3430175B1 (fr) Procédé de laminage et/ou de traitement thermique d'une bande métallique
EP1444059A1 (fr) Procede pour commander un train finisseur monte en amont d'une section de refroidissement et concu pour laminer des feuillards metalliques a chaud
EP1624982B2 (fr) Procede de regulation de la temperature d'une bande metallique, en particulier dans un train finisseur pour le laminage a chaud de bandes metalliques
EP1732716B1 (fr) Procede pour produire un metal
DE102006047718A1 (de) Verfahren zur Nachverfolgung des physikalischen Zustands eines Warmblechs oder Warmbands im Rahmen der Steuerung einer Grobblechwalzstraße zur Bearbeitung eines Warmblechs oder Warmbands
DE19522494A1 (de) Verfahren zum Walzen eines Metallbandes
EP1596999A2 (fr) Procede de regulation de la temperature d'une bande metallique, en particulier dans un parcours de refroidissement
EP3720623B1 (fr) Système d'étirement, de courbure et de redressement et son procédé d'actionnement
EP2620233A1 (fr) Procédé de traitement de produits laminés dans un laminoir
EP3122483B1 (fr) Procédé permettant de positionner un galet de dressage d'une installation de dressage à galets
DE19881041B4 (de) Verfahren zur Steuerung und Voreinstellung eines Stahlwerkes oder von Teilen eines Stahlwerkes
DE10310357A1 (de) Gießwalzanlage zur Erzeugen eines Stahlbandes
EP3494239B1 (fr) Procédé de fonctionnement d'un four de recuit pour recuire une bande métallique
EP3642372B1 (fr) Procédé permettant de faire fonctionner un four de recuit
DE3943093A1 (de) Verfahren zur steuerung der ebenflaechigkeit eines in einem walzwerk hergestellten bandes und vorrichtung zu seiner durchfuehrung
EP4101553B1 (fr) Refroidissement d'un produit laminé en amont d'un train finisseur d'un laminoir à chaud
DE19641432A1 (de) Verfahren und Einrichtung zur Vorausberechnung von vorab unbekannten Parametern eines industriellen Prozesses
EP3787811A1 (fr) Procédé pour faire fonctionner une zone de refroidissement et installation pour la fabrication de produits laminés
DE102019104419A1 (de) Verfahren zur Einstellung verschiedener Kühlverläufe von Walzgut über der Bandbreite einer Kühlstrecke in einer Warmband- oder Grobblech-Straße
WO2022106707A1 (fr) Procédé de correction des propriétés d'une bande laminée à chaud ayant une composition chimique spécifique dans un laminoir à chaud
DE102019203088A1 (de) Verfahren zur Herstellung eines metallischen Bandes oder Blechs

Legal Events

Date Code Title Description
DPE1 Request for preliminary examination filed after expiration of 19th month from priority date (pct application filed from 20040101)
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 17745739

Country of ref document: EP

Kind code of ref document: A1

ENP Entry into the national phase

Ref document number: 2017745739

Country of ref document: EP

Effective date: 20190304