EP2841215B1 - Adaptation des propriétés d'une bande par refroidissement préalable de la bande dans le sens de sa largeur - Google Patents

Adaptation des propriétés d'une bande par refroidissement préalable de la bande dans le sens de sa largeur Download PDF

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Publication number
EP2841215B1
EP2841215B1 EP13718316.6A EP13718316A EP2841215B1 EP 2841215 B1 EP2841215 B1 EP 2841215B1 EP 13718316 A EP13718316 A EP 13718316A EP 2841215 B1 EP2841215 B1 EP 2841215B1
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EP
European Patent Office
Prior art keywords
strip
rolling
metal strip
values
property
Prior art date
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Application number
EP13718316.6A
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German (de)
English (en)
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EP2841215A1 (fr
Inventor
Klaus Weinzierl
Günther Winter
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Primetals Technologies Germany GmbH
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Primetals Technologies Germany GmbH
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Classifications

    • 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
    • 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
    • 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
    • C21D8/0247—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips characterised by the heat treatment
    • C21D8/0263—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips characterised by the heat treatment following hot rolling
    • 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
    • C21D8/04—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips to produce plates or strips for deep-drawing
    • C21D8/0447—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips to produce plates or strips for deep-drawing characterised by the heat treatment
    • C21D8/0463—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips to produce plates or strips for deep-drawing characterised by the heat treatment following hot rolling
    • 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
    • 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
    • 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
    • B21B38/00—Methods or devices for measuring, detecting or monitoring specially adapted for metal-rolling mills, e.g. position detection, inspection of the product
    • B21B38/06—Methods or devices for measuring, detecting or monitoring specially adapted for metal-rolling mills, e.g. position detection, inspection of the product for measuring tension or compression
    • 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
    • B21B38/08—Methods or devices for measuring, detecting or monitoring specially adapted for metal-rolling mills, e.g. position detection, inspection of the product for measuring roll-force
    • 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
    • B21B45/02—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 for lubricating, cooling, or cleaning
    • B21B45/0203—Cooling
    • B21B45/0209—Cooling devices, e.g. using gaseous coolants
    • B21B45/0215—Cooling devices, e.g. using gaseous coolants using liquid coolants, e.g. for sections, for tubes
    • B21B45/0218—Cooling devices, e.g. using gaseous coolants using liquid coolants, e.g. for sections, for tubes for strips, sheets, or plates

Definitions

  • the present invention further relates to a computer program comprising machine code which can be processed directly by a control computer for a rolling mill for rolling a metal strip and whose execution by the control computer causes the control computer to operate the rolling mill according to such a production method.
  • the present invention further relates to a control computer for a rolling mill for rolling a metal strip.
  • a generic method and a generic device are, for example DE 102007053523 A1 known.
  • pivoting means that in a rolling stand the effective roll gap is greater on one side than on the other. So it is given a non-uniform employment of the respective rolling mill.
  • Cooling device in which the coolant (usually water) can be adjusted individually across the width.
  • a rectangular cooling valve may be divided into three areas, namely a trapezoidal part in the middle and two triangular parts left and right. Each of the three parts is independently controllable with an individual amount of water.
  • the left side can be cooled more than the right side and vice versa.
  • any such temperature decrease which is composed of a plurality of straight pieces, can be achieved with such a cooling device within the scope of the adjustment limits.
  • a cooling device is state of the art.
  • the object of the present invention is to provide opportunities to develop the above-mentioned objects such that in a simple and reliable manner, a metal strip with over the bandwidth seen homogeneous properties can be produced.
  • the procedure according to the invention is particularly advantageous because in and behind the first rolling stand of the finishing train - in particular behind the last rolling stand of the finishing train - in a comparatively simple and reliable manner over the bandwidth spatially resolved actual sizes of a third property of the metal strip can be detected, the depend on the actual values of the second property or vice versa. By detecting the actual values of the third property, therefore, the quality of the rolling model can be easily checked and optionally tracked (adapted).
  • the first property of the metal strip is the temperature of the metal strip. Furthermore, in the simplest case beyond the temperature of the metal strip, no further property of the metal strip is used as the first property.
  • the initial values are respectively recorded for a band point of the metal strip, that the activation values of the cooling device for the respective strip point are determined, that the strip points are traced on their way from the roughing mill through the cooling device and the rolling stands of the finishing train, and that the cooling device is driven in each case at the time of passing through the respective band point with the control values determined for the respective band point.
  • the acquisition of the initial values, etc. can take place for one band point in each case.
  • the working cycle may in particular be between 0.2 s and 0.5 s, for example at about 0.3 s.
  • the number of tape points for a metal band may be greater than 100. Typical numerical values are between 200 and 500 band points. In individual cases, up to 1000 band points can be utilized.
  • the third property of the metal strip may include, for example, the temperature of the metal strip on its surface and / or its thickness.
  • the second property is the temperature of the metal strip.
  • the second property of the metal strip is the material strength.
  • At least one further cooling device is arranged downstream of the location for which the expected values are determined.
  • the further cooling device it is possible for the further cooling device to be spatially resolved in the bandwidth direction in such a way that the expected values of the second property of the metal strip in the bandwidth direction are matched to one another.
  • the temperature of the metal strip can be detected spatially resolved at the location for which the expected values are determined or behind this location, and for the location at which the temperature of the metal strip is detected spatially resolved in the bandwidth direction to be at least one more Subordinate cooling device is.
  • the at least one further cooling device can be controlled so as to be spatially resolved in the bandwidth direction in such a way that the temperatures of the metal strip are aligned with one another in the bandwidth direction.
  • the location for which the expected values are determined lies behind the last mill stand of the finishing train.
  • the object of the invention is further achieved by a computer program of the type mentioned.
  • the computer program is designed in this case such that the execution of the computer program by the control computer causes the control computer to operate the rolling mill according to a production method according to the invention.
  • the task is further solved by a correspondingly programmed control computer for the rolling mill.
  • the metal strip 1 may for example consist of steel, aluminum, brass, copper or another metal.
  • the mill For rough rolling of the metal strip 1, the mill has a roughing mill 2.
  • the roughing mill 2 may be formed Offsetrüstig. Often, however, the roughing mill 2, as shown in FIG FIG. 1 a single rolling mill, in which the metal strip 1 is reversibly rolled.
  • the rolling mill furthermore has a cooling device 3.
  • the cooling device 3 is designed in such a way that it can cool the pre-rolled metal strip 1 in a spatially resolved manner in the direction of the strip width, ie that the cooling effect varies seen across the strip width.
  • the cooling device 3 as shown in FIG. 2 have a plurality of juxtaposed spray nozzles 4, which are individually controlled and seen in the bandwidth direction each act on a portion of the metal strip 1.
  • the cooling device 3 as shown in FIG. 3 - As known in the art in heavy plate mills - have two triangular outlet openings 5 and a trapezoidal outlet opening 6, which are individually controlled via a respective valve 7. Other embodiments are possible.
  • the rolling mill also has a finishing train 8.
  • the finishing train 8 has a plurality of rolling stands 9.
  • the number of rolling stands 9 can be as needed. As a rule, five to eight rolling stands 9 are present, usually six or seven rolling stands 9. For reasons of clarity, in FIG. 1 only the first roll stand 9 and the last stand 9 shown.
  • the metal strip 1 is finished rolled after cooling in the cooling device 3.
  • the last rolling mill 9 of the finishing train 8 is followed by a temperature measuring station 10.
  • the surface temperature TO of the finished rolled metal strip 1 is detected metrologically.
  • the finishing train 8 is further downstream of a cooling section 11, in which the finished rolled metal strip 1 is subjected to a defined cooling process.
  • the cooling section 11 has for this purpose a plurality of further cooling devices 12, which can be controlled individually or in groups. In FIG. 1 For reasons of clarity, only a few of the further cooling devices 12 are shown.
  • finishing train 8 is usually followed by a reel assembly 13.
  • the reel assembly 13 has at least one reel 14, by means of which the metal strip 1 is reeled to a collar 15. If the cooling section 11 is present, the reel device 13 of the cooling section 11 is arranged downstream. The cooling section 11 is thus located in This case between the finishing train 8 and the reel assembly 13th
  • the rolling mill 2 is controlled by a control computer 16.
  • the control computer 16 is programmed with a computer program 17.
  • the computer program 17 includes machine code 18 which can be processed directly by the control computer 16.
  • the processing of the machine code 18 by the control computer 16 causes the control computer 16 to control the rolling mill according to a manufacturing process.
  • the control computer 16 may also control other components of the rolling mill, for example, a pre-rolling 2 upstream furnace 19 or the cooling section 11 and optionally also the reel assembly 13.
  • the manufacturing process will be described below in connection with FIG. 4 explained in more detail.
  • the control computer 16 may be a single control computer. But it is also possible that the control computer 16 consists of several, data-technically interconnected individual computers, each of which takes on only one or more specific subtasks.
  • the control computer 16 may consist of a single computer for the control of the aggregates, a single computer for the execution of arithmetic operations such as model calculations and a single computer for receiving operator inputs and displaying results. Another or additional distribution, for example with regard to the control of system components is possible.
  • the control computer 16 may alternatively or additionally be divided into a respective individual computer for controlling the rolling stand 2, the cooling device 3 and the finishing train 8.
  • the control computer 16 implements according to FIG. 4 in a step S1 first a rolling model 20 (see FIG. 1 ).
  • the rolling model 20 may be, for example based on mathematical-physical equations.
  • the equations may in particular be algebraic equations and / or differential equations.
  • the rolling model 20 determines, based on input data of the metal strip 1 in conjunction with influences to which the metal strip 1 is exposed, the resulting rolling stock, in particular its expected temperature and / or expected material strength such as tensile strength, yield strength, yield strength and the like.
  • the input data of the metal strip 1 are, for example, its chemical composition, its thickness and its temperature.
  • a step S2 the metal strip 1 is pre-rolled in the roughing mill 2.
  • the rough rolling takes place under the control of the control computer 16.
  • the control computer 16 detects initial values of a first property of the metal strip 1 in a step S3.
  • the control computer 16 detects the initial values in the bandwidth direction with spatial resolution.
  • at least two values are detected, namely for the left and the right side of the metal strip 1 or for the center and the lateral outer area of the metal strip 1. It is also possible to detect more than two values.
  • the detection of the initial values takes place at the latest at the time when the metal strip 1 enters the cooling device 11. It can also be done sooner, for example during roughing or before rough rolling.
  • the initial values as such may be determined as needed. For example, it may be at the initial values - see FIG. 5 the temperature T of the metal strip 1 as a function of the strip thickness d (ie the temperature as a function of the location in the strip thickness direction). These initial values are usually recorded before roughing. Alternatively, it can - see FIG. 6 - in addition to the temperature T as Function on the strip thickness d to the strip thickness d of the incoming in the roughing mill 2 metal strip 1 and the rolling forces occurring during roughing FV act. These values are detected - at least partially - during rough rolling of the metal strip 1. If the strip thickness d and the rolling forces FV during pre-rolling are detected, these values are also detected spatially resolved in the bandwidth direction.
  • step S2-depending on the configuration of the production method- can be carried out before step S3.
  • the step S2 may be executed simultaneously with the step S3 or after the step S3.
  • Mixed forms can also make sense.
  • the control computer 16 supplies the detected initial values to the rolling model 20 in a step S4.
  • the control computer 16 continues to feed the finishing pattern 8 to the rolling pattern 20 in step S4.
  • the keyway data include Sollwalzspalte, Sollstichab66, expected rolling forces, in the rolling operations before and / or behind the corresponding rolling stand 9 occurring trains and the like.
  • the stitch plan data may alternatively be spatially resolved over the bandwidth, uniformly or across the bandwidth. In the case of spatial resolution, the stitch plan data may alternatively be symmetric, antisymmetric or asymmetric.
  • the control computer 16 sets activation values S for the cooling device 3 in a step S5.
  • the drive values S are resolved in the bandwidth direction.
  • the control computer 16 determines expected values for a second property of the metal strip 1 in a step S6 by means of the rolling model 20.
  • the determined expected values depend, at least inter alia, on the initial values locally corresponding in the bandwidth direction and the drive values S locally locally corresponding in the bandwidth direction the cooling device 3 from.
  • the control computer 16 determines the expected values for a location at the first rolling stand 9 of the finishing train 8 or behind For example, for the location of the first, second, etc. rolling stand 9 of the finishing train 8 or for a place behind the finishing train 8, ie behind the last rolling stand 9 of the finishing train 8.
  • the corresponding location of the location of the temperature measuring station 10 may be.
  • the control computer 16 determines the expected values in the bandwidth direction with spatial resolution. For example, the control computer 16 as a second property, the temperature T of the metal strip 1 or a mechanical property of the metal strip 1 - for example, a material strength - determine. If the control computer 16 determines the temperature T, it usually determines it for the location of the temperature measuring station 10. If the control computer 16 determines mechanical properties, it usually determines them for the location of one of the rolling stands 9 of the finishing train 8 or for the locations several rolling stands 9 of the finishing train 8.
  • the control computer 16 compares the determined expected values in a step S7 with nominal values of the second properties of the metal strip 1.
  • the nominal values can be uniform across the bandwidth. Alternatively, they can vary across the bandwidth seen, so be spatially resolved. Regardless of whether the setpoint values vary over the bandwidth or not, the control computer 16 carries out the comparison, however, in a spatially resolved manner in the bandwidth direction. In accordance with the result of the comparison, the control computer 16 varies the activation values S in a step S8. The control computer 16 carries out the variation in such a way that the expected values-spatially resolved in the bandwidth direction-are approximated to the desired values.
  • control computer 16 it is possible for the control computer 16 to immediately set the activation values S in such a way that the expected values are brought as close as possible to the desired values. Alternatively, it is possible that the steps S6, S7 and S8 are iterated.
  • control computer 16 controls the cooling device 3 in a step S9 in accordance with the determined activation values S.
  • the control computer 16 detects according to FIG. 4 in a step S10 at the location for which he has determined the expected values of the second property, actual values of a third property of the metal strip 1. For example, the control computer 16 according to FIG. 5 at the temperature measuring station 10, the temperature TO of the metal strip 1 on its surface detect. Alternatively or additionally, the control computer 16 according to FIG. 6 during finish rolling, the trains Z occurring in front of and / or behind the rolling stands 9 of the finishing train 8 detect the rolling forces F occurring in the rolling stands 9 of the finishing train 3 and the jobs occurring in the rolling stands 9 of the finishing train 8.
  • the actual values of the detected third property depend on actual values of the second property.
  • the temperature TO of the metal strip 1 on its surface obviously depends on the temperature T of the metal strip 1.
  • the rolling forces F depend, for example, on the material hardening and on the temperature T. It is therefore possible for the control computer 16, in a step S11, to adapt the rolling model 20 on the basis of a comparison, the expectation values of the second property and the actual values of the third property being included in the comparison. It is possible, for the purpose of comparability on the basis of the expectation values of the second property, to determine corresponding expectation values of the third property and to make the comparison on the level of the third property. Alternatively, it is possible to determine the corresponding actual values of the second property from the actual values of the third property and to make the comparison at the level of the second property.
  • the adaptation of the rolling model 20 can be configured as needed.
  • the temperature T as a function of the strip thickness d in the context of the rolling model 20 is determined.
  • the determination rule for determining the temperature T as a function of the strip thickness d can be adapted. Regardless of how the adaptation is exactly realized, however, the adaptation is spatially resolved in the bandwidth direction.
  • the detection of the initial values can take place in each case.
  • each band point 21 corresponds to a portion of the metal band 1 defined by the respective transport speed v of the metal band 1 at the detection time and the power stroke.
  • the band points 21 may correspond to portions of the metal band 1 of predefined length, for example, a length of 10, 15, 20,... Cm.
  • the band points 21 may correspond to a predefined mass, for example 20, 30, 50, ... 100 kg.
  • the determination of the expected values also takes place individually for the respective belt point 21.
  • the belt points 21 are tracked on their way from the roughing mill 2 through the cooling device 3 and the rolling stands 9 of the finishing train 8 ,
  • the cooling device 3 is controlled in each case at the time of passing through the respective band point 21 with the control values S determined for the respective band point 21.
  • the implementation of a tracking including the timely control of the individual devices 2, 3, 9 of the rolling mill is well known to those skilled in the art.
  • the control of the rolling stands 9 of the finishing train 8 is done in this case individually for the respective band point 21. If actual values of at least one third property of the metal strip 1 are detected, this detection also takes place according to the tracking for the respective band point 21. This applies regardless of whether the surface temperature TO, the rolling forces F, the rolling stand positions s, the trains Z, etc. are detected as actual values of the third property.
  • further cooling devices 12 can be arranged downstream of the location for which the expected values are determined. If at least one of the further cooling devices 12 can be controlled in a spatially resolved manner in the bandwidth direction, this activation can be carried out in such a way that the expected values of the second properties in the bandwidth direction are approximated to one another. This embodiment can be realized independently of what the second property of the metal strip 1 is.
  • the temperature TO of the metal strip 1 can be detected spatially resolved at the location for which the expected values are determined or behind this location in the bandwidth direction.
  • the temperature measuring station 10 may be present regardless of whether the temperature T of the metal strip 1 or its material strength is used as a second property. In the former case, the temperature detection usually takes place at the location for which the expected values are determined. In the latter case, the temperature detection takes place behind the location for which the expected values are determined. Because in this case, the expected values are generally determined for the location of at least one rolling stand 9 of the finishing train 8, ie before the temperature measuring station 10.
  • At least one of the further cooling devices 12, that is to say a cooling device 12 of the cooling section 11, is controlled in a spatially resolved manner in the bandwidth direction.
  • the activation of the corresponding cooling device 12 can take place in such a way that the temperature T of the metal strip 1 is adjusted in the direction of the strip width.
  • the present invention has many advantages.
  • homogenization of material properties can be achieved by means of the width-dependent cooling of the metal strip 1 before the finish rolling.

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Control Of Metal Rolling (AREA)
  • Metal Rolling (AREA)

Claims (14)

  1. Procédé de fabrication pour une bande métallique (1),
    - dans lequel la bande métallique (1) est dégrossie dans un dégrossisseur (2), refroidie ensuite dans un dispositif de refroidissement (3) et enfin finie dans un train finisseur (8) à plusieurs cages de laminoir (9), caractérisé en ce que
    - au plus tard lors de l'introduction de la bande métallique (1) dans le dispositif de refroidissement (3) des valeurs de départ d'une première propriété de la bande métallique (1) sont acquises par résolution locale dans la direction de la largeur de la bande,
    - les valeurs de départ acquises sont acheminées vers un modèle de laminage (20),
    - au moyen du modèle de laminage (20) pour un endroit, qui se situe au niveau de ou derrière la première cage de laminoir (9) du train finisseur (8), des valeurs escomptées d'une deuxième propriété de la bande métallique (1) sont déterminées par résolution locale dans la direction de la largeur de la bande,
    - les valeurs escomptées dépendent des valeurs de départ respectives et de valeurs de commande (S) respectives du dispositif de refroidissement (3),
    - les valeurs de commande (S) du dispositif de refroidissement (3) sont déterminées au moyen du modèle de laminage (20) par résolution locale dans la direction de la largeur de la bande de telle sorte que les valeurs escomptées sont rapprochées par résolution locale dans la direction de la largeur de la bande des valeurs théoriques de la deuxième propriété,
    - le dispositif de refroidissement (3) est commandé conformément aux valeurs de commande (S) déterminées.
  2. Procédé de fabrication selon la revendication 1, caractérisé en ce que la première propriété de la bande métallique (1) est la température (T) de la bande métallique en fonction de l'épaisseur de bande (d).
  3. Procédé de fabrication selon la revendication 1 ou 2, caractérisé en ce que les valeurs de départ sont acquises respectivement pour un point de bande (21) de la bande métallique (1), en ce que les valeurs de commande (S) du dispositif de refroidissement (3) pour le point de bande (21) respectif sont déterminées, en ce que les points de bande (21) sur leur chemin sont suivis par le dégrossisseur (2) à travers le dispositif de refroidissement (3) et les cages de laminoir (9) du train finisseur (8) et en ce que le dispositif de refroidissement (3) est commandé respectivement au moment de la traversée du point de bande (21) respectif avec les valeurs de commande (S) déterminées pour le point de bande (21) respectif.
  4. Procédé de fabrication selon la revendication 1, 2 ou 3, caractérisé en ce que, au niveau de l'endroit, pour lequel les valeurs escomptées sont déterminées, par résolution locale dans le sens de la largeur de la bande des valeurs réelles d'au moins une troisième propriété de la bande métallique (1) sont acquises, en ce que les valeurs réelles de la troisième propriété dépendent des valeurs réelles de la deuxième propriété et en ce que le modèle de laminage (20) est adapté à l'aide d'une comparaison par résolution locale dans la direction de la largeur de la bande, où les valeurs escomptées de la deuxième propriété et les valeurs réelles de la troisième propriété interviennent.
  5. Procédé de fabrication selon la revendication 4, caractérisé en ce que la troisième propriété de la bande métallique (1) comprend la température (TO) de la bande métallique (1) au niveau de sa surface et/ou de son épaisseur (d).
  6. Procédé de fabrication selon les revendications 1, 2, 3
    et 4,
    caractérisé en ce que
    - pour les points de bande (21) en plus des valeurs de départ de la première propriété par résolution locale dans la direction de la largeur de la bande respectivement l'épaisseur (d) de la bande métallique (1) entrant dans le dégrossisseur (2) et les forces de laminage (FV) générées lors du dégrossissage sont acquises,
    - les troisièmes propriétés pour les points de bande (21) sont acquises respectivement lors du laminage du point de bande (21) respectif dans la cage de laminoir (9) respective du train finisseur (8),
    - les troisièmes propriétés lors de la finition des points de bande (21) comprennent des tractions (Z) générées devant et/ou derrière les cages de laminoir (9) du train finisseur (8), des forces de laminage (F) générées dans les cages de laminoir (9) du train finisseur (8) et des réglages (s) générés dans les cages de laminoir (9) du train finisseur (8).
  7. Procédé de fabrication selon la revendication 6, caractérisé en ce que la deuxième propriété de la bande métallique (1) est la résistance du matériau.
  8. Procédé de fabrication selon l'une des revendications 1 à 6, caractérisé en ce que la deuxième propriété est la température (T) de la bande métallique (1).
  9. Procédé de fabrication selon l'une des revendications 1 à 8,
    caractérisé en ce qu'au moins un autre dispositif de refroidissement (12) est disposé en aval de l'endroit pour lequel les valeurs escomptées sont déterminées, et en ce que l'autre dispositif de refroidissement (12) est commandé par résolution locale dans la direction de la largeur de la bande de telle sorte que les valeurs escomptées de la deuxième propriété de la bande métallique (1) vues dans la direction de la largeur de la bande sont ajustées les unes les autres.
  10. Procédé de fabrication selon l'une des revendications 1 à 8,
    caractérisé en ce qu'à l'endroit pour lequel les valeurs escomptées sont déterminées, ou derrière cet endroit par résolution locale dans la direction de la largeur de la bande la température (TO) de la bande métallique (1) est acquise, en ce qu'en aval de l'endroit où la température (TO) de la bande métallique (1) est acquise par résolution locale dans la direction de la largeur de la bande au moins un autre dispositif de refroidissement (12) est disposé, et en ce que l'au moins un autre dispositif de refroidissement (12) est commandé par résolution locale dans la direction de la largeur de la bande de telle sorte que les températures (T) de la bande métallique (1) vues dans la direction de la largeur de la bande sont ajustées les unes les autres.
  11. Procédé de fabrication selon l'une des revendications précédentes,
    caractérisé en ce que l'endroit, pour lequel les valeurs escomptées sont déterminées, est situé derrière la dernière cage de laminoir (9) du train finisseur (8).
  12. Programme informatique qui comprend un code machine (18), qui peut être exécuté directement par un ordinateur de commande (16) pour un laminoir afin de laminer une bande métallique (1) et dont l'exécution se fait par le biais de l'ordinateur de commande (16), en ce que l'ordinateur de commande (16) fait fonctionner le laminoir selon un procédé de fabrication avec toutes les étapes d'un procédé de fabrication selon l'une des revendications précédentes.
  13. Ordinateur de commande pour un laminoir afin de laminer une bande métallique (1), caractérisé en ce que l'ordinateur de commande est programmé de telle sorte qu'il fait fonctionner le laminoir selon un procédé de fabrication avec toutes les étapes d'un procédé de fabrication selon l'une des revendications 1 à 11.
  14. Laminoir pour laminer une bande métallique (1),
    - dans lequel le laminoir présente un dégrossisseur (2), dans lequel la bande métallique (1) est dégrossie,
    - dans lequel le laminoir présente un dispositif de refroidissement, dans lequel la bande métallique (1) est refroidie après le dégrossissage,
    - dans lequel le laminoir présente un train finisseur (8) à plusieurs cages de laminoir (9), dans lesquelles la bande métallique (1) est finie après le refroidissement, caractérisé en ce que
    - le laminoir présente un ordinateur de commande (16), par lequel au plus tard lors de l'introduction de la bande métallique (1) dans le dispositif de refroidissement (3) par résolution locale dans la direction de la largeur de la bande des valeurs de départ d'une première propriété de la bande métallique (1) sont acquises,
    - l'ordinateur de commande (16) met en application un modèle de laminage (20) auquel sont amenées les valeurs de départ acquises,
    - dans lequel l'ordinateur de commande (16) détermine au moyen du modèle de laminage (20) pour un endroit, qui est situé au niveau de ou derrière la première cage de laminoir (9) du train finisseur (8), par résolution locale dans la direction de la largeur de la bande des valeurs escomptées d'une deuxième propriété de la bande métallique (1),
    - les valeurs escomptées dépendent des valeurs de départ respectives et des valeurs de commande (S) respectives du dispositif de refroidissement (3),
    - l'ordinateur de commande (16) détermine les valeurs de commande (S) du dispositif de refroidissement (3) au moyen du modèle de laminage (20) par résolution locale dans la direction de la largeur de la bande de telle sorte que les valeurs escomptées sont rapprochées par résolution locale dans la direction de la largeur de la bande de valeurs théoriques de la deuxième propriété,
    - l'ordinateur de commande (16) commande le dispositif de refroidissement (3) conformément aux valeurs de commande (S) déterminées.
EP13718316.6A 2012-04-27 2013-04-17 Adaptation des propriétés d'une bande par refroidissement préalable de la bande dans le sens de sa largeur Active EP2841215B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP13718316.6A EP2841215B1 (fr) 2012-04-27 2013-04-17 Adaptation des propriétés d'une bande par refroidissement préalable de la bande dans le sens de sa largeur

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
EP12165879 2012-04-27
PCT/EP2013/057973 WO2013160166A1 (fr) 2012-04-27 2013-04-17 Adaptation des propriétés d'une bande par refroidissement d'une ébauche de bande en fonction de sa largeur
EP13718316.6A EP2841215B1 (fr) 2012-04-27 2013-04-17 Adaptation des propriétés d'une bande par refroidissement préalable de la bande dans le sens de sa largeur

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EP2841215A1 EP2841215A1 (fr) 2015-03-04
EP2841215B1 true EP2841215B1 (fr) 2016-05-18

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Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19963186A1 (de) 1999-12-27 2001-07-12 Siemens Ag Verfahren zur Steuerung und/oder Regelung der Kühlstrecke einer Warmbandstrasse zum Walzen von Metallband und zugehörige Vorrichtung
WO2003045599A1 (fr) 2001-11-15 2003-06-05 Siemens Aktiengesellschaft Procede pour commander un train finisseur monte en amont d'une section de refroidissement et concu pour laminer des feuillards metalliques a chaud
JP2008238241A (ja) 2007-03-28 2008-10-09 Kobe Steel Ltd アルミニウム金属板の製造方法
DE102007053523A1 (de) 2007-05-30 2008-12-04 Sms Demag Ag Vorrichtung zur Beeinflussung der Temperaturverteilung über der Breite
EP2280323A1 (fr) 2009-07-08 2011-02-02 Siemens Aktiengesellschaft Procédé de commande pour un dispositif d'influence destiné à un produit de laminage
JP2012040593A (ja) 2010-08-20 2012-03-01 Jfe Steel Corp 熱間圧延における仕上温度制御装置

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19963186A1 (de) 1999-12-27 2001-07-12 Siemens Ag Verfahren zur Steuerung und/oder Regelung der Kühlstrecke einer Warmbandstrasse zum Walzen von Metallband und zugehörige Vorrichtung
WO2003045599A1 (fr) 2001-11-15 2003-06-05 Siemens Aktiengesellschaft Procede pour commander un train finisseur monte en amont d'une section de refroidissement et concu pour laminer des feuillards metalliques a chaud
JP2008238241A (ja) 2007-03-28 2008-10-09 Kobe Steel Ltd アルミニウム金属板の製造方法
DE102007053523A1 (de) 2007-05-30 2008-12-04 Sms Demag Ag Vorrichtung zur Beeinflussung der Temperaturverteilung über der Breite
EP2280323A1 (fr) 2009-07-08 2011-02-02 Siemens Aktiengesellschaft Procédé de commande pour un dispositif d'influence destiné à un produit de laminage
JP2012040593A (ja) 2010-08-20 2012-03-01 Jfe Steel Corp 熱間圧延における仕上温度制御装置

Also Published As

Publication number Publication date
WO2013160166A1 (fr) 2013-10-31
CN104254408B (zh) 2016-11-09
CN104254408A (zh) 2014-12-31
EP2841215A1 (fr) 2015-03-04

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