EP1244816B1 - Verfahren zur steuerung und/oder regelung der kühlstrecke einer warmbandstrasse zum walzen von metallband und zugehörige vorrichtung - Google Patents

Verfahren zur steuerung und/oder regelung der kühlstrecke einer warmbandstrasse zum walzen von metallband und zugehörige vorrichtung Download PDF

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Publication number
EP1244816B1
EP1244816B1 EP00991077A EP00991077A EP1244816B1 EP 1244816 B1 EP1244816 B1 EP 1244816B1 EP 00991077 A EP00991077 A EP 00991077A EP 00991077 A EP00991077 A EP 00991077A EP 1244816 B1 EP1244816 B1 EP 1244816B1
Authority
EP
European Patent Office
Prior art keywords
cooling
strip
metal strip
time
specified
Prior art date
Legal status (The legal status 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 status listed.)
Expired - Lifetime
Application number
EP00991077A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP1244816A2 (de
Inventor
Klaus Weinzierl
Rolf-Martin Rein
Otto Gramckow
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Siemens AG
Original Assignee
Siemens AG
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
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Application filed by Siemens AG filed Critical Siemens AG
Publication of EP1244816A2 publication Critical patent/EP1244816A2/de
Application granted granted Critical
Publication of EP1244816B1 publication Critical patent/EP1244816B1/de
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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
    • C21D11/00—Process control or regulation for heat treatments
    • C21D11/005—Process control or regulation for heat treatments for cooling
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B37/00—Control devices or methods specially adapted for metal-rolling mills or the work produced thereby
    • B21B37/74—Temperature control, e.g. by cooling or heating the rolls or the product
    • B21B37/76—Cooling control on the run-out table
    • 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
    • C21D9/56—Continuous furnaces for strip or wire
    • C21D9/573—Continuous furnaces for strip or wire with cooling
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B2261/00—Product parameters
    • B21B2261/20—Temperature
    • B21B2261/21—Temperature profile

Definitions

  • the invention relates to a method for control and / or control of the cooling section of a hot strip mill for Rolling of metal strip, the cooling properties of the structure of the rolled metal strip, especially one Steel strip.
  • the Invention also on the associated device for performing of the procedure.
  • slabs in the hot condition rolled into strips in a hot strip mill. After rolling, the sheet goes through a cooling section.
  • the cooling section of the hot strip mill is used to set the Structural properties of the rolled steel strips.
  • the structural properties of the tapes produced are So far mainly derived from the reel temperature, the through the cooling section automation on a given Setpoint is kept constant.
  • New materials such as multi-phase steels, TRIP steels or the like, require a precisely defined heat treatment, i.e. the specification and monitoring of a temperature profile from the last roll stand to the reel.
  • the process according to the invention has the advantage that cooling conditions can be specified, the actual Better meet practical requirements. advantageously, can now also variable cooling along the belt be specified, with which areas of the rolling strip are determined in particular Quality can be created in a targeted manner. This is now so-called dual-phase materials can also be produced, which is what State of the art was not possible.
  • cooling process along for each band point of the entire cooling section is the control and / or regulation no longer tied to fixed switching locations; it are rather any valves for the supply of coolant at any time actuated. So that compliance with the specified Cooling down along the cooling section by the control and / or Regulation can be checked, according to the invention Including the model in real time with the belt in the cooling section. This provides the required strip temperatures on the Cooling section and is constantly measured temperature values corrected.
  • the method according to the invention allows one flexible specification of heat treatment for modern steels. This takes account of practical requirements.
  • each a cooling section include, which run through their entire length individually adjustable valves with coolants can be acted upon are means for specifying cooling curves available for the individual band points of the metal band.
  • the cooling of metal strip as part of the Hot rolling technology and in detail the function of the Cooling section illustrates.
  • hot rolling steel so-called slabs with an initial thickness of approx. 200 mm rolled into a strip from 1.5 to 20 mm.
  • the processing temperature is 800 to 1200 ° C.
  • the process end includes after rolling, cooling the strip with water in a Cooling section to 300 to 800 ° C.
  • FIG. 1 there is the last rolling stand of a hot strip mill designated 1.
  • the mill stand 1 is followed by a finishing mill measuring station 2, after cooling a reel measuring station 3 each of which measures the temperature of the strip, and then an underfloor reel 4 for reeling the metal strip to a coil.
  • Cooling section 10 generally referred to as a system.
  • a rolled hot strip made of steel is 100 in FIG designated. It runs through the cooling section 10 and is by both sides via valves with a cooling medium, in particular Water, chilled. Individual valves can be grouped together be, for example, valve groups 11, 11 ', ..., 12, 12 ', ..., 13, 13', ... and 14, 14 ', ... are shown.
  • the cooling of the strip 100 to be recorded by control technology is usually a one-dimensional unsteady heat conduction equation based. With the mathematical description is made of an isolated rod that is just beginning and End - according to the top and bottom of the band - one Carried out heat exchange with the environment.
  • the band 100 can have individual band points are described in which heat conduction in Rod is done. This is known, for what purpose Technical literature is referred.
  • the temperature is, however, at measuring station 2 in front of the cooling section and especially measured at the reel measuring station 3.
  • about the mathematical model is the heat exchange in band 100 according to the above requirements. It will that is, a model of the cooling section is created, which is shown in FIG is denoted by 15. If about the model 15 the temperatures are available at any location implement a control to the specified cooling profile.
  • the temperature profile for the band point i should have a predetermined temperature Ti, in particular the reel temperature T H. There are corresponding specifications for the remaining band points. If all the specified reel temperatures of the individual strip points are connected, curve 400 is drawn in FIG.
  • the cooling section is designated as the actual system with 10. 1 is expressed here by a so-called real-time model 20, by means of which the temperatures T and i at the individual band points i of the band 100 are determined.
  • the calculated reel temperature T and H which has an error, is compared with the temperature T H measured on the reel 3 and the resulting error is fed to a unit 25 for model correction.
  • the latter unit 25 is also supplied with the entire cooling process calculated by the real-time model 20.
  • the unit 25 uses this data to determine a correction of the cooling process, which is applied to the calculated cooling process.
  • the corrected cooling curve determined in this way is compared with the target cooling and the resulting control deviation is fed to the controller 33. From this and by means of the gain factors determined by the unit 25, the valve positions are generated as process control signals, which are both implemented on the system and fed back to the real-time model 20 as information.
  • the controller 33 can because of the entered control deviation and the other values with a predetermined algorithm operate. Such algorithms become software predetermined and let the control of any pattern of Valves too.
  • the controller can be used at any time the valves 11, 11 ', ..., 12, 12', ..., 13,13 ', ..., 14, 14', ... can be activated by the controller in any combination at the same time.
  • the cooling along the metal strip is described in detail the enthalpy and the temperature curve depending on considered the enthalpy.
  • the calculation of the model correction for the controller is illustrated in detail in FIG. 4: the enthalpies e and the temperatures T are determined as a function of the enthalpy e.
  • the real-time model 20 delivers a calculated enthalpy value ê , from which the value T and ( ê ) is formed in a unit 21. From this, the temperature values T and for any band points can be calculated. Specifically, the calculated temperature value T and H for the reel temperature is compared with the measured reel temperature T H , which results in a value ⁇ T H.
  • enthalpy signals are equally fed to a unit 22 in which the partial derivative of the enthalpy is formed according to the heat conduction coefficient ⁇ ê / ⁇ ⁇ .
  • the heat conduction coefficient represents a correction factor to a certain extent.
  • the valve positions of the system continue to be included in both units 20 and 22.
  • the output signal of the unit 22 results in calculated values ⁇ ê / ⁇ ⁇ .
  • the signal is subjected to dT and / dê , from which a signal ⁇ T and / ⁇ ⁇ can be determined by forming partial derivatives according to the chain rule.
  • the value for the reel ⁇ T and H /deal ⁇ is considered and the previously determined temperature error ⁇ T H is divided by this value, which results in the ⁇ .
  • the latter value ⁇ is multiplied by ⁇ ê / ⁇ ⁇ so that the model correction ⁇ e is available as the initial value.
  • the model correction of the unit 25 from FIG. 3 is thus implemented.
  • ⁇ ê / ⁇ ⁇ therefore represents a sensitivity model.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Materials Engineering (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Thermal Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Control Of Metal Rolling (AREA)
  • Control Of Heat Treatment Processes (AREA)
  • Heat Treatments In General, Especially Conveying And Cooling (AREA)
  • Heat Treatment Of Strip Materials And Filament Materials (AREA)
  • Metal Rolling (AREA)
EP00991077A 1999-12-27 2000-12-15 Verfahren zur steuerung und/oder regelung der kühlstrecke einer warmbandstrasse zum walzen von metallband und zugehörige vorrichtung Expired - Lifetime EP1244816B1 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19963186A DE19963186B4 (de) 1999-12-27 1999-12-27 Verfahren zur Steuerung und/oder Regelung der Kühlstrecke einer Warmbandstrasse zum Walzen von Metallband und zugehörige Vorrichtung
DE19963186 1999-12-27
PCT/DE2000/004489 WO2001047648A2 (de) 1999-12-27 2000-12-15 Verfahren zur steuerung und/oder regelung der kühlstrecke einer warmbandstrasse zum walzen von metallband und zugehörige vorrichtung

Publications (2)

Publication Number Publication Date
EP1244816A2 EP1244816A2 (de) 2002-10-02
EP1244816B1 true EP1244816B1 (de) 2004-03-10

Family

ID=7934628

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00991077A Expired - Lifetime EP1244816B1 (de) 1999-12-27 2000-12-15 Verfahren zur steuerung und/oder regelung der kühlstrecke einer warmbandstrasse zum walzen von metallband und zugehörige vorrichtung

Country Status (8)

Country Link
US (1) US6866729B2 (zh)
EP (1) EP1244816B1 (zh)
CN (1) CN100402675C (zh)
AT (1) ATE261498T1 (zh)
DE (2) DE19963186B4 (zh)
ES (1) ES2217028T3 (zh)
PT (1) PT1244816E (zh)
WO (1) WO2001047648A2 (zh)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2353742A1 (de) 2010-02-05 2011-08-10 Siemens Aktiengesellschaft Warmwalzstraße zum Walzen von Warmband, Verfahren zum Betrieb einer Warmwalzstraße zum Walzen von Warmband, Steuer- und/oder Regeleinrichtung
EP3099430B1 (de) 2014-01-28 2017-11-01 Primetals Technologies Germany GmbH Kühlstrecke mit zweifacher kühlung auf eine jeweilige sollgrösse

Families Citing this family (32)

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Publication number Priority date Publication date Assignee Title
DE10156008A1 (de) * 2001-11-15 2003-06-05 Siemens Ag Steuerverfahren für eine einer Kühlstrecke vorgeordnete Fertigstraße zum Walzen von Metall-Warmband
DE10203787A1 (de) * 2002-01-31 2003-08-14 Siemens Ag Verfahren zur Regelung eines industriellen Prozesses
DE10256750A1 (de) * 2002-12-05 2004-06-17 Sms Demag Ag Verfahren zur Prozesssteuerung oder Prozessregelung einer Anlage zur Umformung, Kühlung und/oder Wärmebehandlung von Metall
ATE348671T1 (de) † 2003-02-25 2007-01-15 Siemens Ag Verfahren zur regelung der temperatur eines metallbandes, insbesondere in einer kühlstrecke
EP1624982B2 (de) * 2003-02-25 2011-06-15 Siemens Aktiengesellschaft Verfahren zur regelung der temperatur eines metallbandes, insbesondere in einer fertigstrasse zum walzen von metallwarmband
JP2006523143A (ja) 2003-03-28 2006-10-12 ターター スチール リミテッド 熱間ストリップ圧延機における熱間圧延コイルのオンライン特性予測システムおよび方法
DE10327383C5 (de) 2003-06-18 2013-10-17 Aceria Compacta De Bizkaia S.A. Anlage zur Herstellung von Warmband mit Dualphasengefüge
CN101056721B (zh) * 2004-04-06 2010-09-01 西门子公司 用于制造金属的方法
DE102007025447A1 (de) * 2006-10-09 2008-04-17 Siemens Ag Verfahren zur Steuerung und/oder Regelung eines industriellen Prozesses
WO2009011070A1 (ja) * 2007-07-19 2009-01-22 Nippon Steel Corporation 冷却制御方法、冷却制御装置及び冷却水量計算装置
EP2047921B1 (en) * 2007-07-30 2013-02-13 Nippon Steel & Sumitomo Metal Corporation Apparatus for cooling hot steel sheet, method of cooling hot steel sheet and program therefor
CN101376960B (zh) * 2007-08-31 2011-03-30 宝山钢铁股份有限公司 一种合金化炉冷却段带钢冷却装置及冷却控制方法
DE102008011303B4 (de) * 2008-02-27 2013-06-06 Siemens Aktiengesellschaft Betriebsverfahren für eine Kühlstrecke zum Kühlen eines Walzguts mit von der Temperatur losgelöster Kühlung auf einen Endenthalpiewert
EP2108465A1 (en) * 2008-04-07 2009-10-14 Siemens VAI Metals Technologies Ltd. Method and apparatus for controlled cooling
CN101633004B (zh) * 2008-07-24 2011-01-19 宝山钢铁股份有限公司 厚板轧后控制冷却广义观测器设计方法
CN101456038B (zh) * 2009-01-08 2012-01-04 上海交通大学 热轧带钢层流冷却过程板带温度监测方法
WO2011065290A1 (ja) * 2009-11-24 2011-06-03 住友金属工業株式会社 熱延鋼板の製造装置、および熱延鋼板の製造方法
KR101253850B1 (ko) * 2010-11-30 2013-04-12 주식회사 포스코 가속 냉각 장치 및 이의 유량 제어 방법
KR101188086B1 (ko) 2010-12-01 2012-10-04 주식회사 포스코 가속 냉각 장치 및 이의 유량 제어 방법
EP2673099B1 (de) * 2011-02-07 2017-12-06 Primetals Technologies Austria GmbH Verfahren zur regelung einer temperatur eines strangs durch das positionieren einer verfahrbaren kühldüse in einer strangführung einer stranggiessanlage
EP2540404A1 (de) * 2011-06-27 2013-01-02 Siemens Aktiengesellschaft Steuerverfahren für eine Warmbandstraße
CN104254408B (zh) * 2012-04-27 2016-11-09 普锐特冶金技术德国有限公司 通过与宽度相关的预制带冷却装置来补偿带特性
EP2873469A1 (de) 2013-11-18 2015-05-20 Siemens Aktiengesellschaft Betriebsverfahren für eine Kühlstrecke
CZ305469B6 (cs) * 2014-03-26 2015-10-14 Technická univerzita v Liberci, Katedra strojírenské technologie Způsob stanovení ochlazovací schopnosti média pro konkrétní zpracovávané materiály včetně možnosti simulace tepelného zpracování rozměrných dílů
DE102014222827A1 (de) * 2014-11-07 2016-05-12 Sms Group Gmbh Verfahren zum Steuern und/oder Regeln einer metallurgischen Anlage
MX2019007171A (es) 2016-12-20 2019-08-29 Arcelormittal Un metodo de ajuste dinamico para la fabricacion de una hoja de acero tratado termicamente.
RU2734507C1 (ru) * 2017-06-26 2020-10-19 Арселормиттал Способ и электронное устройство для определения температуры металлической полосы, соответствующий способ управления, компьютерная программа, управляющее устройство и установка горячей прокатки
DE102017127470A1 (de) * 2017-11-21 2019-05-23 Sms Group Gmbh Kühlbalken und Kühlprozess mit variabler Abkühlrate für Stahlbleche
DE102018220382A1 (de) * 2018-11-28 2020-05-28 Sms Group Gmbh Verfahren zur Herstellung eines metallischen Bandes
DE102019104419A1 (de) * 2019-02-21 2020-08-27 Sms Group Gmbh Verfahren zur Einstellung verschiedener Kühlverläufe von Walzgut über der Bandbreite einer Kühlstrecke in einer Warmband- oder Grobblech-Straße
DE102020214643A1 (de) * 2020-11-20 2022-05-25 Sms Group Gmbh Verfahren zur Einstellung der Eigenschaften eines Warmbandes mit einer bestimmten chemischen Zusammensetzung in einer Warmwalzstraße
DE102022128358A1 (de) * 2022-10-26 2024-05-02 Sms Group Gmbh Kühlmodul, Kühlgruppe, Kühlsystem, Verfahren, warmgewalztes metallisches bandförmiges Produkt und Verwendung

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GB9317928D0 (en) * 1993-08-26 1993-10-13 Davy Mckee Poole Rolling of metal strip
DE19639062A1 (de) * 1996-09-16 1998-03-26 Mannesmann Ag Modellgestütztes Verfahren zur kontrollierten Kühlung von Warmband oder Grobblech in einem rechnergeführten Walz- und Kühlprozeß
AT408623B (de) * 1996-10-30 2002-01-25 Voest Alpine Ind Anlagen Verfahren zur überwachung und steuerung der qualität von walzprodukten aus warmwalzprozessen
DE19740691A1 (de) * 1997-09-16 1999-03-18 Siemens Ag Verfahren und Einrichtung zur Kühlung von Metallen in einem Hüttenwerk

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2353742A1 (de) 2010-02-05 2011-08-10 Siemens Aktiengesellschaft Warmwalzstraße zum Walzen von Warmband, Verfahren zum Betrieb einer Warmwalzstraße zum Walzen von Warmband, Steuer- und/oder Regeleinrichtung
WO2011095265A2 (de) 2010-02-05 2011-08-11 Siemens Aktiengesellschaft Warmwalzstrasse zum walzen von warmband, verfahren zum betrieb einer warmwalzstrasse zum walzen von warmband, steuer- und/oder regeleinrichtung
WO2011095265A3 (de) * 2010-02-05 2012-01-12 Siemens Aktiengesellschaft Warmwalzstrasse zum walzen von warmband, verfahren zum betrieb einer warmwalzstrasse zum walzen von warmband, steuer- und/oder regeleinrichtung
EP3099430B1 (de) 2014-01-28 2017-11-01 Primetals Technologies Germany GmbH Kühlstrecke mit zweifacher kühlung auf eine jeweilige sollgrösse

Also Published As

Publication number Publication date
US20030089431A1 (en) 2003-05-15
ES2217028T3 (es) 2004-11-01
PT1244816E (pt) 2004-08-31
EP1244816A2 (de) 2002-10-02
WO2001047648A2 (de) 2001-07-05
ATE261498T1 (de) 2004-03-15
US6866729B2 (en) 2005-03-15
DE50005630D1 (de) 2004-04-15
DE19963186B4 (de) 2005-04-14
DE19963186A1 (de) 2001-07-12
CN1425076A (zh) 2003-06-18
CN100402675C (zh) 2008-07-16
WO2001047648A3 (de) 2001-12-27

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