EP3934822B1 - Procédé de fabrication d'une bande ou feuille métallique - Google Patents

Procédé de fabrication d'une bande ou feuille métallique Download PDF

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Publication number
EP3934822B1
EP3934822B1 EP20700907.7A EP20700907A EP3934822B1 EP 3934822 B1 EP3934822 B1 EP 3934822B1 EP 20700907 A EP20700907 A EP 20700907A EP 3934822 B1 EP3934822 B1 EP 3934822B1
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Prior art keywords
temperature
strip
rolling mill
roll stand
conveying direction
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EP20700907.7A
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German (de)
English (en)
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EP3934822A1 (fr
Inventor
August Sprock
Christoph Hassel
Kai GRYBEL
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SMS Group GmbH
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SMS Group GmbH
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    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B1/00—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations
    • B21B1/22—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling plates, strips, bands or sheets of indefinite length
    • B21B1/24—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling plates, strips, bands or sheets of indefinite length in a continuous or semi-continuous process
    • B21B1/26—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling plates, strips, bands or sheets of indefinite length in a continuous or semi-continuous process by hot-rolling, e.g. Steckel hot mill
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B38/00—Methods or devices for measuring, detecting or monitoring specially adapted for metal-rolling mills, e.g. position detection, inspection of the product
    • B21B38/006—Methods or devices for measuring, detecting or monitoring specially adapted for metal-rolling mills, e.g. position detection, inspection of the product for measuring temperature
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B45/00—Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
    • B21B45/004—Heating the product
    • 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
    • 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
    • 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

Definitions

  • the invention relates to a method for producing a metallic strip or sheet according to the preamble of claim 1.
  • the measured entry-side surface temperature and a predetermined entry-side target surface temperature are then compared with one another, and based on this comparison a control command is sent to at least one unit consisting of a coil box, a raw billet heating device, a descaling device and/or an intermediate rolling stand cooling device is sent so that the measured entry-side surface temperature becomes equal to the predetermined entry-side target surface temperature.
  • the object of the invention is to optimize the temperature control and/or at least one further process parameter in the production or processing of a strip or sheet with a multi-stand roll stand.
  • the at least one process parameter that is adjusted (e.g. controlled or regulated) according to step (iii) of the method according to the invention, taking into account or as a function of the calculated temperature at the outlet of the last roll stand of the rolling mill and the comparison made thereto, can be the temperature of an interstand cooling system and/or a pre-strip cooling system (influenced by the amount of cooling water supplied), which are each arranged upstream of the last rolling stand or the rolling mill, viewed in the conveying direction of the strip or sheet.
  • the at least one process parameter can also be the temperature of an inductive heater and/or a furnace which—seen in the conveying direction of the strip or sheet—are arranged upstream of the rolling mill.
  • the process parameter controlled or regulated according to the invention can also be the strip speed at which the strip or sheet is transported through the rolling mill. Additionally and/or alternatively, it can be the process parameter also concerns the operating position of a thermal insulation hood arranged upstream of the rolling mill, seen in the conveying direction (F), the thermal insulation hood being opened or closed in step (iii) taking into account the comparison according to step (ii) relative to the strip or sheet.
  • the variants mentioned above for the method according to the invention allow a targeted setting or influencing of the temperatures of a strip or sheet during its production.
  • the process parameter is the temperature of a cooling device - then the technical implementation in the associated plant for the production or processing of a strip or sheet via the quantity of coolant supplied and/or the Number of active or switched on cooling zones or spray nozzles is reached.
  • the invention is based on the essential knowledge that it is possible with the aid of the calculation according to step (i) to determine a process parameter, for example in the form of the temperature for the strip or sheet directly at the outlet of the last roll stand of the rolling mill, in particular also for the case , that a rapid cooling device is connected there.
  • This calculated temperature can preferably be a surface temperature of the strip or sheet.
  • cooling water supply can then be controlled, preferably regulated, in such a way that the temperature of the strip or sheet at the outlet of the last roll stand of the rolling mill reaches this predetermined reference value.
  • the temperature calculation model used in step (i) represents a preferably dynamic temperature control model or program.
  • the calculation is carried out using a finite difference method.
  • This model can be used, among other things, to determine the temperature distribution as a function of the process conditions in a particular section of the plant with which a metal strip or sheet is produced or processed.
  • This model or program can also be used for control purposes in a cooling zone of a plant with which a metal strip or sheet is produced.
  • the (surface) temperature of the strip can be used as a control variable or sheet metal, which is calculated on the basis of or proceeding from the temperature of the strip or sheet metal measured upstream of the last rolling stand of the rolling mill - seen in the conveying direction, e.g.
  • the model/program calculates the water quantities required to achieve these values/parameters in a respective cooling zone. The results are immediately visualized and updated with each new cyclic calculation. In this sense, there is online calculation and control.
  • selected cooling zones of a system with which a metal strip or sheet is produced or processed can be specifically controlled or regulated with regard to the amounts of coolant supplied.
  • the method according to the invention is characterized in that at least one cooling area of such a system is controlled or regulated by means of the temperature calculation model designed as a metallurgical process model.
  • the temperature profile in the said system of strip or sheet i.e. in the section of strip or sheet that lies between the point at which the temperature upstream of the last rolling stand of the rolling mill and is located at the exit of the last rolling stand
  • the invention therefore also provides that the temperature profile in the material block or material section is determined and set as a function of the material by means of the temperature calculation model.
  • the use of the method or the calculation method is particularly suitable for carrying out this online and for controlling the manufacturing process for the strip or to use sheet metal.
  • the use is therefore further characterized in an embodiment by the fact that the aforementioned temperature calculation model is used not only for online determination of the temperature of the strip or sheet at the exit of the last roll stand of the rolling mill, but also for controlling at least one cooling zone of a plant used to produce such a strip or sheet.
  • a temperature calculation model is used, with which a temperature of the produced metallic strip or sheet 1 at an outlet of a last roll stand of a rolling mill can be calculated in a targeted manner.
  • the temperature calculation is based on Fourier's heat equation (1), in which c p represents the specific heat capacity of the system, ⁇ the thermal conductivity, p the density and s the spatial coordinates.
  • T indicates the calculated temperature.
  • the Q term on the right takes into account energies released during the phase transition (Equation 2). During the transition from liquid to solid, this term characterizes the heat of fusion, f s indicates the degree of phase transformation.
  • the heat conduction and the total enthalpy are particularly important as necessary input variables for the equation, since these variables have a significant influence on the temperature result.
  • the thermal conductivity is a function of temperature, the chemical composition and the phase fraction and can be precisely determined experimentally.
  • figure 1 shows the representation of the Gibbs energy for pure iron. From this it can be seen that the individual phases ferrite, austenite and the liquid phase assume a minimum for a certain characteristic temperature range in which these phases are stable.
  • figure 2 shows the phase boundaries of an Fe-C alloy with 0.02% Si, 0.310% Mn, 0.018% P, 0.007% S, 0.02% Cr, 0.02% Ni, 0.027% Al and variable C content.
  • figure 3 shows the course of the total enthalpy according to Gibbs for a low-carbon steel (low carbon) as a function of the temperature.
  • the image also shows the solidus and liquidus temperatures.
  • the representation of 4 shows a basically simplified side view of a system 10 set up for the application of the method according to the invention, with which a strip or sheet 1 is produced or processed in a conveying direction F.
  • the system 10 comprises a multi-stand rolling mill 11 which, in the example shown here, has a first roll stand 12 , a central roll stand 13 and a last roll stand 14 .
  • a rapid cooling device 16 is arranged, which includes further cooling in the form of a laminar cooling device 18 .
  • a coiler 20 is provided at the end of the production line, with which a finished strip 1 can be wound up.
  • an arrow "F” designates a conveying direction (from left to right in the image area) in which a strip or sheet 1 is moved in the system 10 or passes through the rolling mill 11 with the mentioned roll stands 12-14.
  • the system 10 is equipped with a number of temperature measuring devices in order to determine the temperature of the strip or sheet metal at various points.
  • These temperature measuring devices include: a first pyrometer P1, which—seen in the conveying direction F—is arranged upstream of the first roll stand 12; a second pyrometer P2 placed between the second roll stand 13 and the last roll stand 14 (and thus - seen in the conveying direction F - upstream of the last roll stand 14); a third pyrometer P3, which - seen in the conveying direction F - is arranged between the rolling mill 11 and the laminar cooling device 18; and a fourth pyrometer P4 positioned between the laminar cooler 18 and the coiler 20.
  • the second pyrometer P2 which—seen in the conveying direction F—is arranged upstream of the last rolling stand 14, it is emphasized that a temperature T2 is measured with it, which the strip or sheet metal 1 before it enters the last roll stand 14 .
  • the temperatures measured with the pyrometers P1, P3 and T4 are denoted below as T1, T3 and T4, respectively.
  • the system 10 also includes a computing and control device, hereinafter referred to only briefly as the control device 4 is denoted by "100" and symbolized in simplified form in the form of a rectangle.
  • the controller 100 is equipped with the temperature calculation model.
  • the temperature calculation model may include or be based on DTR or DSC (Dynamic Temperature Control/Dynamic Solidification Control). The calculation is carried out using a finite difference method.
  • the vertical arrows in the representation of 4 between the system 10 and the rectangle for the control device 100 symbolize the interactions between the individual components of the system 10 and the control device 100.
  • the arrows pointing upwards show in detail that the temperatures measured by the pyrometers P1-P4 in are entered into the control device 100 and processed therein using signal technology.
  • the arrows pointing downwards symbolize that the associated components of the system 10 can be controlled or regulated by the control device 10 - this applies to the intermediate stand cooling (between the first roll stand 12 and the central roll stand 13), the last roll stand 14, the rapid cooling device 16 and/or the laminar cooling device 18, for example in relation to the supply of a quantity of coolant to these components.
  • a temperature TFM is then calculated based on or starting from the temperature T2, which was measured with the second pyrometer P2 upstream of the last roll stand 14 and, as explained, entered into the control device 100, which is Strip or sheet 1 is present directly at the output A of the last roll stand 14.
  • This calculation is carried out according to the finite difference method for a system of the strip or sheet 1, which extends through the material section of the strip or sheet 1 between the point at which the second pyrometer P2 is arranged and the exit A of the last rolling stand 14 is formed.
  • Fourier's heat equation is solved to calculate this temperature profile or the temperature TFM.
  • the boundary conditions in the rolling mill 11 e.g.
  • temperature transfer to the air via radiation and convection as well as to the rollers of the last roll stand 14) and in the cooling section are taken into account. Also taken into account is the heat generated by phase transformation, which can occur either in the rolling mill 11 or in the cooling section.
  • the control device 100 may then be used to supply cooling water for the strip or sheet 1 suitably adjusted, ie controlled or regulated.
  • Such control (or regulation) of the cooling water supply can be carried out for the purpose that a temperature of the strip or sheet 1 at the outlet A of the last rolling stand 14 actually corresponds to the predetermined reference value TFM ref and/or that in particular the further temperatures T3 (for the pyrometer P3) and/or T4 (for the pyrometer P4) can be suitably adjusted.
  • FIG. 6 Another embodiment of the system 10 is shown, in which, compared to the embodiment of FIG 4 in addition, the components inductive heating 26, oven 28 and/or thermal insulation hood 30 are provided. As can be seen, these components 26, 28, 30 are each arranged upstream of the rolling mill 11, viewed in the conveying direction F of the strip or sheet, and the strip or sheet 1 can be passed through these components.
  • the arrows, which are directed towards these components 26, 28 and 30, starting from the control device 100, make it clear that the inductive heating 26, the oven 28 and/or the thermal insulation hood 30 can be controlled or regulated by means of the control device 100, viz as explained above, depending on the calculated temperature TFM by the comparison made herewith with the predetermined reference value TFM ref . As a result, a temperature for the strip or sheet 1 is influenced or increased in a targeted manner.
  • thermal insulation hood 30 With regard to the mode of operation of the thermal insulation hood 30, it is pointed out separately that this represents a device with which the strip or sheet 1 is thermally insulated.
  • the degree of thermal insulation for the strip or sheet 1 on a roller table can be influenced by opening or closing the thermal insulation hood 30 .
  • the activation by means of the control device 100 opens or closes the thermal insulation hood 30 accordingly, or transfers it to an intermediate position, the temperature for the strip or sheet 1 being influenced depending on the respective position of the thermal insulation hood 30 11 .
  • a pre-strip cooling system 24 is provided for the system 10 - seen in the conveying direction F of the strip or sheet 1 - upstream of the rolling mill 11, which can also be controlled or regulated by the control device 100, as indicated by the symbolic arrow.
  • a quantity of coolant for this pre-strip cooling system 24 is then controlled or regulated in order to specifically influence or reduce the temperature of the strip or sheet 1 .
  • interstand cooling which can also be controlled or regulated by means of the control device 100, namely by adjusting the amount of coolant supplied and/or by the number of spray nozzles used.
  • corresponding reference values T1 ref , T2 ref , T3 ref , T4 ref can also be specified for the temperatures T1 , T2 , T3 and T4 on the basis of a microstructure model in control device 100 or for the temperature calculation model stored therein, in order to to achieve optimal properties.
  • the reference values would have to be determined on the basis of empirical values or measurement and production data. This can be e.g. models based on neural networks, the Kriging algorithm or similar.
  • the temperature calculation can be performed using the Gibbs energies and the enthalpy.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Materials Engineering (AREA)
  • Thermal Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Control Of Metal Rolling (AREA)
  • Metal Rolling (AREA)
  • Heat Treatments In General, Especially Conveying And Cooling (AREA)
  • Control Of Heat Treatment Processes (AREA)
  • Heat Treatment Of Strip Materials And Filament Materials (AREA)

Claims (17)

  1. Procédé de fabrication d'une bande ou d'une tôle métallique (1), dans lequel la bande ou la tôle est laminée dans un laminoir à plusieurs cages (11) étant évacuée en aval de la dernière cage de laminage (14) du laminoir (11) dans la direction de transport (F), et refroidie dans le laminoir à plusieurs cages (11) et/ou - vu dans la direction de transport (F), en aval du laminoir (11), dans lequel une température (T2) de la bande ou de la tôle (1) - vues dans la direction de transport (F) - est mesurée en amont de la dernière cage de laminage (14) du laminoir (11),
    caractérisé par les étapes consistant à :
    (i) calculer une température (TFM) pour la bande ou la tôle (1) immédiatement à la sortie (A) de la dernière cage de laminage (14) du laminoir (11) au moyen d'un modèle de calcul de la température basé sur la température (T2) de la bande ou de la tôle (1) mesurée en amont de la dernière cage de laminage (14) du laminoir (11), cette étape de calcul étant effectuée pour un système constitué de la section de matériau de la bande ou de la tôle (1) entre le point de mesure de la température (T2) en amont de la dernière cage de laminage (14) et la sortie (A) de la dernière cage de laminage (14),
    (ii) comparer la température (TFM) calculée pour la bande ou la tôle (1) à la sortie (A) de la dernière cage de laminage (14) du laminoir (11) avec une valeur de référence prédéterminée (TFMref), et
    (iii) ajuster en contrôlant, de préférence par régulation, au moins un paramètre de processus pour la bande ou tôle (1) en tenant compte de la comparaison de la température calculée (TFM) avec la valeur de référence prédéterminée (TFMref) selon l'étape (ii), la bande ou la tôle étant traitée, chauffée ou refroidie en fonction de ce paramètre de processus.
  2. Procédé selon la revendication 1, caractérisé en ce que la température (TFM) calculée à l'étape (i) est une température de surface de la bande ou de la tôle (1).
  3. Procédé selon l'une des revendications 1 ou 2, caractérisé en ce que le paramètre de processus est la température d'un système de refroidissement de cage intermédiaire (22) du laminoir (11) disposé - vu dans la direction de transport (F) - en amont de la dernière cage de laminage (14), la température dudit système de refroidissement de cage intermédiaire (22) étant contrôlée, de préférence régulée, à l'étape (iii) en tenant compte de la comparaison effectuée selon l'étape (ii).
  4. Procédé selon l'une quelconque des revendications 1 à 3, caractérisé en ce que le paramètre de processus est la température d'un pré-refroidissement de bande (24) disposé - vu dans la direction de transport (F) - en amont du laminoir (11), la température dudit pré-refroidissement de bande (26) étant contrôlée, de préférence régulée, à l'étape (iii) en tenant compte de la comparaison effectuée selon l'étape (ii).
  5. Procédé selon l'une des revendications 1 ou 2, caractérisé en ce que le paramètre de processus est la température d'un chauffage inductif (26) disposé - vu dans la direction de transport (F) - en amont du laminoir (11), la température dudit chauffage inductif (26) étant contrôlée, de préférence régulée, à l'étape (iii) en tenant compte de la comparaison effectuée selon l'étape (ii).
  6. Procédé selon l'une des revendications 1, 2 ou 5, caractérisé en ce que le paramètre de processus est la température d'un four (28) disposé - vu dans la direction de transport (F) - en amont du laminoir (11), la température dudit four (28) étant contrôlée, de préférence régulée, à l'étape (iii) en tenant compte de la comparaison effectuée selon l'étape (ii).
  7. Procédé selon l'une quelconque des revendications précédentes, caractérisé en ce que le paramètre de processus est la position de fonctionnement d'un capot d'isolation thermique (30) disposé - vu dans la direction de transport (F) - en amont de la dernière cage de laminage (14), ledit capot d'isolation thermique (30) étant ouvert ou fermé à l'étape (iii) par rapport à la bande ou à la tôle, en tenant compte de la comparaison effectuée selon l'étape (ii).
  8. Procédé selon l'une quelconque des revendications 1 à 7, caractérisé en ce que, à l'étape (iii), un dispositif de refroidissement laminaire (18) disposé - vu dans la direction de transport (F) - en amont de la dernière cage de laminage (14) du laminoir (11) est commandé, de préférence régulé, en tenant compte de la comparaison effectuée selon l'étape (ii).
  9. Procédé selon l'une quelconque des revendications 1 à 8, caractérisé en ce que, à l'étape (iii), un dispositif de refroidissement rapide (16) disposé - vu dans la direction de transport (F) - immédiatement en aval de la dernière cage de laminage (14) du laminoir (11) est commandé, de préférence régulé, en tenant compte de la comparaison effectuée selon l'étape (ii).
  10. Procédé selon l'une quelconque des revendications précédentes, caractérisé en ce que le paramètre de processus est la température d'un refroidissement de cage intermédiaire du laminoir (11) disposé - vu dans la direction de transport (F) - en amont de la dernière cage de laminage (14), la température dudit refroidissement intermédiaire étant contrôlée, de préférence régulée, à l'étape (iii) en tenant compte de la comparaison effectuée selon l'étape (ii).
  11. Procédé selon l'une quelconque des revendications précédentes, caractérisé en ce que, dans le cadre du modèle de calcul de la température, une enthalpie totale est déterminée en tant qu'enthalpie molaire totale libre (H) du système au moyen de l'énergie de Gibbs (G) à pression constante (p) selon l'équation suivante H = G − T ∂ G ∂ T p
    Figure imgb0018
     Où:
    H = l'enthalpie molaire du système,
    G = l'énergie de Gibbs du système,
    T = la température absolue en kelvins et
    p = la pression du système.
  12. Procédé selon l'une quelconque des revendications précédentes, caractérisé en ce que, dans le cadre du modèle de calcul de la température, la répartition de la température dans le système et en particulier à la sortie (A) de la dernière cage de laminage (14) du laminoir (11) est déterminée au moyen de l'équation de la chaleur par les séries de Fourier ρ c p ∂ T ∂ t − ∂ ∂ s λ ∂ T ∂ s = Q
    Figure imgb0019
     où
    p = la densité,
    cp = la capacité thermique spécifique à pression constante,
    T = la température absolue calculée en kelvins,
    λ = la conductivité thermique,
    s = la coordonnée spatiale correspondante,
    t = le temps, et
    Q = l'énergie libérée en amont ou en aval du laminoir (11) lors du changement de phase liquide à solide.
  13. Procédé selon l'une quelconque des revendications précédentes, caractérisé en ce que, dans le cadre du modèle de calcul de la température pour un mélange de phases, l'énergie de Gibbs (G) de l'ensemble du système est déterminée comme la somme des énergies de Gibbs des phases pures ainsi que de leurs fractions de phase selon l'équation G = f l G l + f γ G γ + f pα G pα + f eα G eα + f ec G ec
    Figure imgb0020
     où
    G = l'énergie de Gibbs du système,
    fi = la fraction d'énergie de Gibbs de la phase ou de la fraction de phase concernée de l'ensemble du système,
    et
    Gi = l'énergie de Gibbs de la phase pure ou de la fraction de phase concernée.
  14. Procédé selon l'une quelconque des revendications précédentes, caractérisé en ce que la valeur de référence prédéterminée (TFMref) est déterminée à l'aide d'un modèle de structure pour définir les propriétés souhaitées du matériau.
  15. Procédé selon la revendication 14, caractérisé en ce que, sur la base dudit modèle de structure, en cas d'écart entre la valeur de référence prédéterminée (TFMref) et la température calculée (TFMref), il est décidé si une dégradation de la qualité du matériau est probable, et dans le cas où cela n'est pas probable, la température calculée (TFM) sera ensuite fixée comme nouvelle valeur de référence prédéterminée (TFMref).
  16. Procédé selon l'une des revendications 14 ou 15, caractérisé en ce que le modèle de structure prédéfinit, pour compenser d'éventuelles dégradations de la qualité, de nouvelles valeurs de référence pour une température (T3, T4) de la bande ou de la tôle également en une position en aval de la dernière cage de laminage (14) du laminoir (11) et/ou en aval d'un dispositif de refroidissement laminaire (18) disposé - vu dans la direction de transport (F) - en aval de la dernière cage de laminage (14) du laminoir (11), ainsi que les taux de refroidissement correspondants (CR23, CR34).
  17. Procédé selon l'une quelconque des revendications 14 à 16, caractérisé en ce que le modèle de structure est constitué par un modèle à base de données, basé sur l'algorithme de Kriging et/ou sur des réseaux neuronaux.
EP20700907.7A 2019-03-06 2020-01-16 Procédé de fabrication d'une bande ou feuille métallique Active EP3934822B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102019203088.2A DE102019203088A1 (de) 2019-03-06 2019-03-06 Verfahren zur Herstellung eines metallischen Bandes oder Blechs
PCT/EP2020/050975 WO2020177937A1 (fr) 2019-03-06 2020-01-16 Procédé de fabrication d'une bande ou feuille métallique

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JP (1) JP7239726B2 (fr)
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PL (1) PL3934822T3 (fr)
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US3604234A (en) 1969-05-16 1971-09-14 Gen Electric Temperature control system for mill runout table
JPS6156722A (ja) * 1984-08-28 1986-03-22 Kawasaki Steel Corp 熱延鋼板の熱間仕上圧延機出側直近急冷方法
DE19963185A1 (de) * 1999-12-27 2001-07-12 Siemens Ag Verfahren und Einrichtung zum Kühlen eines aus einem Walzgerüst auslaufenden warmgewalzten Metallbandes
DE10156008A1 (de) * 2001-11-15 2003-06-05 Siemens Ag Steuerverfahren für eine einer Kühlstrecke vorgeordnete Fertigstraße zum Walzen von Metall-Warmband
JP4029871B2 (ja) * 2004-07-22 2008-01-09 住友金属工業株式会社 鋼板の冷却装置、熱延鋼板の製造装置及び製造方法
CN101745549B (zh) * 2008-12-11 2013-06-19 宝山钢铁股份有限公司 一种热连轧机带钢进钢温度的控制方法
JP4735785B1 (ja) * 2009-11-24 2011-07-27 住友金属工業株式会社 熱延鋼板の製造方法、および熱延鋼板の製造装置
BR112012022221A2 (pt) * 2010-03-11 2016-07-05 Sumito Metal Ind Ltd processo para a fabricação e aparelho para a fabricação de folha de aço laminado a quente
DE102013019698A1 (de) 2013-05-03 2014-11-06 Sms Siemag Ag Verfahren zur Herstellung eines metallischen Bandes
US10040107B2 (en) * 2014-02-04 2018-08-07 Toshiba Mitsubishi-Electric Industrial Systems Corporation Temperature control apparatus of hot-rolling mill
KR102032039B1 (ko) * 2015-03-26 2019-10-14 도시바 미쓰비시덴키 산교시스템 가부시키가이샤 온도 계산 방법, 온도 계산 장치, 가열 제어 방법, 및 가열 제어 장치
JP6435234B2 (ja) * 2015-05-20 2018-12-05 株式会社日立製作所 熱間圧延仕上げミル出側温度制御装置およびその制御方法
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EP3934822A1 (fr) 2022-01-12
CN113518672B (zh) 2023-09-01
JP2022522181A (ja) 2022-04-14
US20220176429A1 (en) 2022-06-09
JP7239726B2 (ja) 2023-03-14
PL3934822T3 (pl) 2022-11-21
US11858020B2 (en) 2024-01-02
CN113518672A (zh) 2021-10-19
DE102019203088A8 (de) 2020-10-29
DE102019203088A1 (de) 2020-09-10
WO2020177937A1 (fr) 2020-09-10

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