EP2712332B1 - Procédé de commande pour un train à feuillards à chaud - Google Patents

Procédé de commande pour un train à feuillards à chaud Download PDF

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Publication number
EP2712332B1
EP2712332B1 EP12727821.6A EP12727821A EP2712332B1 EP 2712332 B1 EP2712332 B1 EP 2712332B1 EP 12727821 A EP12727821 A EP 12727821A EP 2712332 B1 EP2712332 B1 EP 2712332B1
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EP
European Patent Office
Prior art keywords
rolling stock
rolling
predetermined location
energy content
hot strip
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.)
Active
Application number
EP12727821.6A
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German (de)
English (en)
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EP2712332A1 (fr
Inventor
Klaus Weinzierl
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Primetals Technologies Germany GmbH
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Primetals Technologies Germany GmbH
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Priority to EP12727821.6A priority Critical patent/EP2712332B1/fr
Publication of EP2712332A1 publication Critical patent/EP2712332A1/fr
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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
    • 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

Definitions

  • the present invention further relates to a computer program comprising machine code, which is directly abungbar by a control computer for a hot strip mill for rolling a flat rolled metal and whose processing by the control computer causes the control computer the Hot strip mill operates according to such an operating method.
  • the present invention further relates to a control circuit for a hot strip mill for rolling a flat rolled material of metal, wherein the control computer is designed such that it operates the hot strip mill according to such an operating method.
  • the temperature of the corresponding rolling point can be detected by measurement.
  • the temperature profile over the thickness of the rolling stock can be determined by a model.
  • a desired energy content profile can be determined, which is taken into account when determining the energy content influences to which the respective rolling stock point is subjected.
  • the known control method works very well when relatively thin strip material is rolled, so that all rolling stands the finishing train are engaged, ie the flat rolling (usually a band) to roll.
  • finishing mills and subordinate cooling section and relatively thick strips are rolled with Endwalzdicken of about 5 mm to about 30 mm.
  • the rolling must be made to the final rolling thickness in a rolling stand of the finishing train, which is not the last rolling stand of the finishing train, for example the penultimate or the third last rolling stand of the finishing train.
  • the following rolling stands according to the example so the last mill stand the finishing train are engaged, ie the flat rolling (usually a band) to roll.
  • finishing mills and subordinate cooling section and relatively thick strips are rolled with Endwalzdicken of about 5 mm to about 30 mm.
  • the rolling must be made to the final rolling thickness in a rolling stand of the finishing train, which is not the last rolling stand of the finishing train, for example the penultimate or the third last rolling stand of the finishing train.
  • the following rolling stands according to the example thus the last roll stand or the last and the penultimate roll stand, are traversed without deformation by the flat rolling stock.
  • finishing train has interstand cooling means, it is possible to start the cooling of the flat rolled material immediately after the last pass, so that pipe qualities of high quality can in principle also be produced in a multistage hot strip mill. This is in been tried more recently. In practice, however, this poses the following problem:
  • the temperature of the flat rolling stock is recorded between the finishing train and the cooling section at a temperature measuring station. Using the measured temperature value, a temporal or local target energy content profile is determined for the corresponding rolling stock point. On the basis of the desired energy content course, the energy influences are determined to which the corresponding rolling stock in the cooling section is subjected. Due to the intensive cooling by means of the intermediate stand cooling devices, however, the surface of the flat rolling stock is strongly cooled. Behind the relevant intermediate stand cooling device, the heat must first be transported by heat conduction from the interior of the flat rolling material on the surface. Due to the relatively large thickness of the flat rolling a relatively long period of time is required for this purpose.
  • the object of the present invention is to provide possibilities by means of which high material grades can be produced in a multistage finishing train with a downstream cooling section without requiring a measured final rolling temperature.
  • a starting value should be reliably provided for the cooling section even if a temperature measurement behind the finishing train is not usable, for example, because the cooling process is already started before the last mill stand.
  • the present invention is thus based on the finding that - with correspondingly good modeling of the energy content of the rolling stock points - the corresponding expected value can be used as at least equivalent substitute for the measurement of the final rolling temperature and the desired energy content profile can be determined on the basis of this - mathematically determined - expected value ,
  • the procedure according to the invention is of particular advantage when the flat rolling stock is in the predetermined location seen in the direction of rolling immediately upstream rolling mill is rolled to a final roll thickness and seen in the running direction is no longer rolled behind the predetermined location.
  • the predetermined location in the direction seen at least one rolling stand downstream it is possible that the predetermined location in the direction seen downstream rolling stands are driven up so that their rollers do not contact the flat rolling.
  • rolls of the corresponding rolling stands can be set against the flat rolling stock and drive the flat rolled stock without deformation.
  • intermediate structure cooling devices are arranged upstream of the predetermined location, they are alternatively active or inactive, depending on the configuration of the control method according to the invention.
  • the predetermined location is between the finishing line and the cooling section.
  • the expectation value for the energy content replaces the measured temperature value.
  • the procedure according to the invention shows its full advantages when at least one intermediate stand cooling device is arranged between the predetermined location and the last rolling stand of the finishing train, as viewed in the running direction.
  • the cooling devices of the cooling section, but also the interstand cooling devices of the finishing train downstream of the predetermined location in the direction of travel are controlled in accordance with the determined energy content influences.
  • the corresponding intermediate stand cooling devices are, so to speak, regarded as control elements as elements of the cooling section.
  • the last "active" rolling mill ie the last mill stand of the finishing mill, in which the flat rolled stock is rolled, can be arranged within the finishing train as needed.
  • the number at the predetermined location seen in the direction of downstream rolling stands is between 1 and 3.
  • the Soll energieinhaltsverlauf from the predetermined location to the expiry of the respective Walzgutituss from the cooling section can be determined as needed.
  • the desired energy content profile is preferably determined such that at least the intermediate structure cooling device immediately downstream of the predetermined location is operated with at least 80% and / or with at most 90% or 95% of its maximum possible influencing of energy content.
  • the finish roll thickness can be sized as needed. Often it is between 5 mm and 30 mm.
  • a temperature measuring station is arranged between the finishing train and the cooling section, by means of which the actual surface temperature of the rolling stock points can be detected at the location of the temperature measuring station.
  • This temperature measuring station is present in particular because in the hot strip mill - as an alternative to the mode of operation according to the invention - a "normal" rolling can also take place in which all rolling stands of the finishing train roll the flat rolling stock.
  • the surface temperature detected behind the finishing train - such as in the DE 101 56 008 A1 explained - mostly usefully usable.
  • the expected value determined for the predetermined location it is possible to determine the expected value determined for the predetermined location exclusively for determining the desired energy content profile consulted. Alternatively, it is possible that in addition the difference between a desired end roll energy content and the energy content characterized by the expected value determined for the predetermined location is used to determine control variables for the predetermined location upstream rolling stands and / or for the predetermined location upstream intermediate stand cooling devices.
  • plate can be rolled.
  • the flat rolled stock is a strip.
  • the energy content of the rolling stock points can alternatively be determined by their temperature or by their enthalpy - if necessary supplemented by the phase components of the respective Welzgutddlings.
  • the object is further achieved by a computer program of the type mentioned.
  • the computer program is designed in this case such that the control computer executes a control method with all steps of a control method according to the invention.
  • control computer for a hot strip mill for rolling a flat rolling stock made of metal which is designed such that it carries out such an operating method during operation.
  • the object is further achieved by a hot strip mill for rolling a flat rolling stock of the type mentioned, which is equipped with such a control computer.
  • FIG. 1 comprises a hot strip mill at least one finishing line 1 and a cooling section 2.
  • the cooling section 2 is downstream of the finishing train 1.
  • the finishing train 1 has a plurality of rolling stands 3.
  • a flat rolling stock 4 enters the foremost rolling stand 3 of the finishing train with an input thickness and an input energy, then successively passes through the other rolling stands 3 of the finishing train 1 and finally runs out of the last rolling stand 3 of the finishing train 1 with a final rolling thickness d.
  • the flat rolling stock 4 thus passes through the rolling stands 3 of the finishing train 1 successively in a running direction x which is uniform for all rolling stands 3 (and also the cooling section 2).
  • the number of rolling stands 3 may be determined as needed. Minimal are usually three rolling stands 3 available, a maximum of nine rolling stands 3. Usually six or seven rolling stands 3 are available.
  • Intermediate stand cooling devices 5 are preferably arranged at least between the rear rolling stands 3, by means of which the flat rolling stock 4 can be cooled with a cooling medium 6-usually water, a water-oil mixture or a water-air mixture. Alternatively or additionally, inter-frame cooling devices 5 can also be arranged between the front rolling stands 3.
  • the flat rolling stock 4 happens behind the finishing train 1 a temperature measuring station 7 and then runs in the cooling section. 2 one. In the cooling section 2, the flat rolling stock 4 is cooled by means of cooling devices 8 of the cooling section 2 to a final energy content.
  • the flat rolling stock 4 is made of metal.
  • the metal may be copper, aluminum, brass or another metal. Often the metal is steel.
  • the flat rolled stock 4 can - in the case of the material "steel” in particular - alternatively be a relatively short sheet or a considerably longer strip. In the case of a belt, the flat rolling stock 4 is wound behind the cooling section 2 to form a coil 9.
  • the hot strip mill - ie the unit of finishing line 1 and cooling section 2 - is controlled by a control computer 10.
  • the control computer 10 is programmed with a computer program 11.
  • the computer program 11 can be supplied to the control computer 10, for example via a conventional mobile data carrier, on which the computer program 11 is stored in machine-readable form.
  • the computer program 11 comprises machine code 12, which can be processed directly by the control computer 10.
  • the execution of the machine code 12 by the control computer 10 causes the control computer 10 to control the hot strip mill according to a control method which will be described below in connection with FIG FIG. 2 is described in detail.
  • the control computer 10 is thus designed such that it controls the hot strip mill accordingly.
  • control method according to the invention will be described below in connection with FIG. 2 explained for a single section 13 of the flat rolling stock 4, hereinafter referred to as considered Walzgutddling 13. However, the control method according to the invention is carried out in practice in parallel for all Walzguta 13, which are located in the hot strip mill.
  • the rolling stock sections 13 or rolling stock points 13 can be defined as such as required.
  • the rolling stock points 13 are defined by a time clock. In other words, with each time cycle enters a Walzgut Vietnamese 13 in the hot strip mill and enters another Walzgut Vietnamese 13 from the hot strip mill.
  • the timing may be, for example, between 0.1 seconds and 1.0 seconds, in particular between 0.2 seconds and 0.5 seconds, preferably at about 0.3 seconds.
  • the rolling stock points 13 may be determined, for example, by a predetermined length (for example 20 cm to 50 cm) or a predetermined mass (for example 20 kg to 50 kg) of the rolling stock 4 entering the hot strip mill.
  • the determined initial value T1 is characteristic of the energy content of the considered rolling stock point 13. In particular, it may be the temperature or the enthalpy of the considered Walzgutands 13.
  • the actual temperature of the relevant rolling stock point 13 can be detected by measurement on one of the finishing mill 1 upstream temperature measuring station 14 and used directly as the initial value T1. It is also possible to additionally determine or presuppose the phase state of the considered rolling stock point 13 and thereby determine the enthalpy.
  • the initial value is otherwise known, for example because it is disclosed to the control computer 10 by a higher-level or upstream control device.
  • the temperature or the enthalpy can be used as the quantity describing the energy content. Both sizes can be divided by phase proportions be supplemented of the corresponding Walzgutituss 13.
  • the use of the temperature has the advantage that it is easily detectable as such.
  • the enthalpy has the advantage that it is an energy-conserving quantity and therefore also detects the latent energy of the phase transformations. It is at the discretion of the skilled person which of the sizes he uses. This and also the consideration of a possible phase transformation in the context of temperature determination will not be discussed in more detail below, since these procedures and problems do not concern the core of the present invention.
  • the corresponding procedures and problems are familiar and familiar to the person skilled in the art.
  • the control computer 10 implements a model 15 for the hot strip mill due to the execution of the computer program 11.
  • the model 15 comprises mathematical-physical equations on the basis of which a given new energy content or an expected value T2 characterizing the respective energy content can be ascertained gradually given a given initial value T1 in conjunction with energy content influences ⁇ E.
  • the model 15 may include a heat equation and a phase transformation equation.
  • the heat equation can, for example, from the DE 101 29 565 A1 be known heat conduction equation, the phase transformation equation according to the teaching of EP 1 711 868 B1 be implemented.
  • the control computer 10 supplies the determined initial value T1 to the model 15 in a step S2.
  • the considered rolling stock point 13 is further followed by the control computer 10 in a step S3 when passing through the finishing train 1 and the cooling section 2.
  • the control computer 10 can receive the rolling speeds from the roll stands 3 and determine the respective actual speed of the considered rolling stock point 13 from the roll speeds in conjunction with the (known) roll diameters and the - at least substantially - known lead and lag and thus the respective position of the considered Walzgutituss 13 from time to time to update clock.
  • the corresponding path tracking leads the control computer 10 to the model 15.
  • the considered Walzgut Vietnamese Walzgut Vietnamese 13 is subjected in the finishing train 1 and the cooling section 2 Energyinhaltbeeinlungen ⁇ E.
  • the control computer 10 - rollers in the rolling stands 3 of the finishing train 1 an energy input.
  • the energy influences ⁇ E are also supplied to the model 15 by the control computer 10 in a step S4. Due to the tracking of the considered Walzgutuss 13 the control computer 10 is known whether and possibly which rolling mill 3 or if and possibly which interstand cooling device 5 and whether and possibly which cooling device 8 of the cooling section 2 just acts on the considered Walzgutddling 13.
  • the control computer 10 therefore determines by means of the model 15 in a step S5 continuously in real time the respective current energy content of the considered Walzgutins 13 or the characteristic value T2 for this characteristic.
  • the control computer 10 carries out the step S5 during the passage of the considered Walzgutituss 13 through the hot strip mill.
  • the control computer 10 thus continuously updates the respective expected value T2 on the basis of the currently valid energy content influencing ⁇ E and the immediately previously valid expected value T2. Which energy content influencing ⁇ E is to be used is determined by the control computer 10 on the basis of the tracking. Based on this approach, the control computer 10, starting from the initial value T1, the expected value T2 update step by step, so that during the passage of the respective Walzgutuss 13 through the finishing line 1 and the cooling section 2 is at any time the expected energy content of the respective Walzgutins 13 available.
  • the control computer 10 checks whether the considered rolling stock point 13 has reached a predetermined location P.
  • the predetermined location P is seen in the running direction x between the first roll stand 3 and the first cooling device 8 of the cooling section 2.
  • the predetermined location P is in the embodiment of FIG. 1 (Also) before the last mill stand 3 of the finishing train 1 and before the temperature measuring 7th
  • one, two or three rolling stands 3 can be arranged between the predetermined location P and the temperature measuring station 7.
  • This number can possibly vary from flat rolling stock 4 to flat rolling stock 4 - but not viewed Walzgut Vietnamese 13 to considered Walzgut Vietnamese 13 of the same flat rolling 4 - since the predetermined location P is a purely software technically fixed location. It may, for example, alternatively be fixed by the computer program 11 or specified to the control computer 10 from outside or determined by the control computer 10 on the basis of other circumstances.
  • step S7 the control computer 10 determines a desired energy content course E * for the considered rolling stock point 13.
  • the desired energy content course E * extends from the predetermined location P to the departure of the considered rolling stock point 13 from the cooling section 2. It can be defined, for example, as a local course (relative to the location of the considered rolling stock point 13 in the hot strip mill) or as a time profile.
  • the control computer 10 determines the desired energy content course E * in step S7 using the expected value T2 for the energy content which is currently associated with the considered rolling stock point 13, ie at the predetermined location P.
  • the control computer 10 thus determines the desired energy content course E * using the energy content that is expected for the considered rolling stock point 13 at the predetermined location P.
  • step S8 the control computer 10 determines the energy influences ⁇ E which are required in order to set the energy content of the considered rolling stock point 13 in accordance with the determined target energy content profile E *.
  • the control computer 10 thus determines in step S8 as a function of the determined target energy content course E * the energy influences ⁇ E, which the considered Walzgut Vietnamese 13 is subjected from the predetermined location P until it leaves the cooling section 2.
  • the energy content influences ⁇ E for the considered rolling stock point 13 are determined immediately, ie immediately after the determination of the desired energy content profile E *.
  • step S6 only the step S7 can be skipped in the NO branch.
  • step S8 may be modified such that in each case only the next energy content influencing ⁇ E (or the next group of such influences ⁇ E) is determined for the considered rolling stock point 13.
  • energy content influences ⁇ E for the considered Walzgut Vietnamese
  • step S9 the control computer 10 - depending on the location of the considered Walzgutins 13 in the hot strip mill - the corresponding interstand cooling device 5, the corresponding cooling device 8 of the cooling section 2 or the corresponding rolling stand 3 at.
  • the step S9 is always executed by the control computer 10, that is, both in the case that the considered Walzgut Vietnamese 13 is located in front of the predetermined location P, as well as in the case that the considered Walzgut Vietnamese 13 is located behind the predetermined location P. If the considered Walzgut Vietnamese 13 is located in front of the predetermined location P, the corresponding energy influence ⁇ E has been determined otherwise, for example, when entering the considered Walzgutits 13 in the finishing train 2 from the initial value T1 for the energy content. If, on the other hand, the considered rolling stock point 13 is behind the predetermined location P, the energy influencing ⁇ E determined in step S8 is used.
  • interstand cooling devices 5 situated in front of the predetermined location P - if present - are activated.
  • the influence of the respective interstand cooling means 5 on the Energy content of Walzguta 13 are taken into account in the modeling.
  • these interstand cooling devices 5 are inactive.
  • the intermediate stand cooling devices 5 arranged in front of the predetermined location P do not cool the flat rolling stock 4 in this case.
  • a step S10 the control computer 10 checks whether the considered rolling stock point 13 has run out of the cooling section 2. If this is the case, the procedure according to the invention for the considered rolling stock point 13 is completed.
  • the flat rolling stock 4 is rolled to a final rolling thickness d in the rolling mill 3 which is immediately upstream of the predetermined location P in the running direction x.
  • the final roll thickness d can be, for example, between 5 mm and 30 mm.
  • the flat rolling stock 4 is no longer rolled. If the rolling mill 3 are arranged downstream of the predetermined location P, the flat rolling stock 4 is therefore no longer rolled there.
  • the final roll thickness d remains rather unchanged.
  • the downstream rolling stands 3 can be ascended so that their rollers 16 do not contact the flat rolling stock 4. This is in FIG. 3 for the predetermined location P immediately downstream rolling stand 3 so shown. Alternatively, it is possible that the rollers 16 of the downstream rolling stands 3 are employed on the flat rolling stock 4, but do not roll it, but only drive it without deformation. This is in FIG. 3 for the last rolling mill 3 of the finishing train 1 shown.
  • a temperature measuring station 7 can be arranged between the finishing train 1 and the cooling section 2, by means of which the actual surface temperature TO of the rolling stock points 13 at the location of the temperature measuring station 7 can be detected. If the temperature measuring station 7 is present, various approaches are possible.
  • the corresponding surface temperatures TO it is possible to detect the corresponding surface temperatures TO and to feed them to the control computer 10. This is in FIG. 4 indicated by the solid line provided with the reference numeral 18.
  • the surface temperature TO detected for a certain rolling stock point 13 is indeed detected, but not used to determine the desired energy content profile E * of the rolling stock point 13 under consideration.
  • the line 18 is completed within the control computer 10 with a bar.
  • the detected surface temperature TO may possibly be used for other purposes, for example for adaptation of the model 15.
  • FIG. 5 shows possible additions to the steps S7 and S8 of FIG. 2 .
  • Step S8 is followed by a step S21.
  • the control computer 10 checks whether the intermediate structure cooling device 5 immediately downstream of the predetermined location P has at least 80% of its maximum possible influence on energy content with respect to the considered rolling stock 13 and / or with a maximum of 90% or at most 95% of its maximum possible influence of energy content is operated. If this is not the case, the control computer 10 goes in the embodiment of FIG. 5 to a step S22. In step S22, the control computer 10 varies the target energy content course E * accordingly.
  • steps S26 and S27 may be present.
  • the control computer 10 forms the difference between a desired Endwalzenergyinhalt T2 * and the energy content according to the expected value T2, which is determined for the considered Walzgutddling 13 at the predetermined location P.
  • the control computer 10 uses this difference to determine control variables for rolling stands 3 and / or interstand cooling devices 5, which are arranged upstream of the predetermined location P. For example, according to a control subject to deadtime, the energy content influences ⁇ E for the predetermined location P upstream intermediate structure cooling devices 5 can be readjusted or a mass flow, which of course acts on the entire hot strip line, can be tracked.
  • the present invention has many advantages.

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Claims (15)

  1. Procédé de commande d'un train de laminage de feuillards à chaud,
    - dans lequel le train de laminage de feuillards à chaud comprend un train ( 1 ) finisseur, pour le laminage de produit ( 4 ) à laminer plat en métal,
    - dans lequel le train ( 1 ) finisseur a plusieurs cages ( 3 ) de laminoir, qui sont parcourues les unes après les autres, dans un sens ( x ) de passage, par le produit ( 4 ) à laminer plat,
    - dans lequel le train de laminage de feuillards à chaud comprend une section ( 2 ) de refroidissement, en aval du train ( 1 ) finisseur,
    - dans lequel on détermine, pour des points ( 13 ) du produit ( 4 ) à laminer plat, au plus tard à l'entrée de chaque point ( 13 ) de produit à laminer dans le train ( 1 ) finisseur, une valeur ( T1 ) initiale caractérisant le contenu énergétique de chaque point ( 13 ) du produit à laminer,
    - dans lequel on envoie les valeurs ( T1 ) initiales à un modèle ( 15 ) du train de laminage de feuillards à chaud,
    - dans lequel on suit le trajet des points ( 13 ) du produit à laminer, lorsqu'ils passent dans le train ( 1 ) finisseur et dans la section ( 2 ) de refroidissement,
    - dans lequel on envoie également au modèle ( 15 ) les suivis de trajet et les influences ( δE ) de contenu énergétique, auxquelles les points ( 13 ) du produit à laminer sont soumis dans le train ( 1 ) finisseur et dans la section ( 2 ) de refroidissement,
    - dans lequel il est déterminé, par l'ordinateur ( 10 ) de commande, au moyen du modèle ( 15 ), à l'aide des valeurs ( T1 ) initiales, des suivis de trajet et des influences ( δE ) de contenu énergétique, pendant que les points ( 13 ) du produit à laminer passent dans le train de laminage de feuillards à chaud, continuellement en temps réel, des valeurs ( T2 ) escomptées des points ( 13 ) du produit à laminer caractérisant chaque contenu énergétique présent des points ( 13 ) du produit à laminer passant dans le train de laminage de feuillards à chaud, caractérisé en ce que
    - on détermine, pour les points ( 13 ) du produit à laminer, en utilisant le contenu énergétique escompté pour un emplacement ( P ) défini à l'avance, une courbe ( E* ) de contenu énergétique de consigne de l'emplacement ( P ) défini à l'avance jusqu'à la sortie de chaque point ( 13 ) du produit à laminer de la section ( 2 ) de refroidissement,
    - en ce que l'emplacement ( P ) défini à l'avance se trouve, considéré dans le sens ( x ) de passage, entre la première cage ( 3 ) de laminoir et le premier dispositif ( 8 ) de refroidissement de la section ( 2 ) de refroidissement,
    - en ce que l'on détermine, en fonction de la courbe ( E* ) de contenu énergétique de consigne déterminée, les influences ( δE ) de contenu énergétique, auxquelles les points ( 13 ) du produit à laminer sont soumis, de l'emplacement ( P ) défini à l'avance jusqu'à la sortie de chaque point ( 13 ) du produit à laminer de la section ( 2 ) de refroidissement et en ce que
    - on commande, conformément aux influences ( δE ) de contenu énergétique déterminées, les dispositifs ( 5, 8 ) de refroidissement, en aval de l'emplacement ( P ) défini à l'avance, considéré dans le sens ( x ) de passage.
  2. Procédé de commande suivant la revendication 1,
    caractérisé
    en ce qu'on lamine, jusqu'à une épaisseur ( d ) de laminage finale, le produit ( 4 ) à laminer plat dans la cage ( 3 ) de laminoir, juste en amont, considéré dans le sens ( x ) de passage, de l'emplacement ( P ) défini à l'avance et en ce qu'on ne lamine plus le produit ( 4 ) à laminer plat en aval, considéré dans le sens ( x ) de passage, de l'emplacement ( P ) défini à l'avance.
  3. Procédé de commande suivant la revendication 2,
    caractérisé
    en ce qu'on au moins une cage ( 3 ) de laminoir est disposée en aval, considéré dans le sens ( x ) de passage, de l'emplacement ( P ) défini à l'avance et en ce que les cages ( 3 ) de laminoir, disposées en aval, considéré dans le sens ( x ) de passage, de l'emplacement ( P ) défini à l'avance, sont abordées de manière à ce que leurs cylindres ( 16 ) n'entrent pas en contact avec le produit ( 4 ) à laminer plat ou en ce que des cylindres ( 16 ) des cages ( 3 ) de laminoir, en aval, considéré dans le sens ( x ) de passage, de l'emplacement ( P ) défini à l'avance, sont serrés sur le produit ( 4 ) à laminer plat et entraînent sans déformation le produit ( 4 ) à laminer plat.
  4. Procédé de commande suivant la revendication 1, 2 ou 3,
    caractérisé
    il est monté en amont, considéré dans le sens ( x ) de passage, de l'emplacement ( P ) défini à l'avance, des dispositifs ( 5 ) de refroidissement de cage intermédiaire et en ce que ces dispositifs ( 5 ) de refroidissement de cage intermédiaire sont en alternance actifs et inactifs.
  5. Procédé de commande suivant l'une des revendications précédentes,
    caractérisé
    en ce que, entre l'emplacement ( P ) défini à l'avance et la dernière cage ( 3 ) de laminoir, considéré dans le sens ( x ) de passage, du train ( 1 ) finisseur, est disposé au moins un dispositif ( 5 ) de refroidissement de cage intermédiaire et en ce que les au moins un dispositifs ( 5 ) de refroidissement de cage intermédiaire sont commandés conformément aux influences ( δE ) de contenu énergétique déterminées.
  6. Procédé de commande suivant la revendication 5,
    caractérisé
    en ce que le nombre de cages ( 3 ) de laminoir en aval, considéré dans le sens ( x ) de passage, de l'emplacement ( P ) défini à l'avance, est compris entre 1 et 3.
  7. Procédé de commande suivant la revendication 5 ou 6,
    caractérisé
    en ce qu'on détermine la courbe ( E* ) de contenu énergétique de consigne de l'emplacement ( P ) défini à l'avance jusqu'à la sortie de chaque point ( 13 ) de produit à laminer de la section ( 2 ) de refroidissement, de manière à ce qu'au moins le dispositif ( 5 ) de refroidissement de cage intermédiaire, juste en aval de l'emplacement ( P ) défini à l'avance, fonctionne à au moins 80% et/ou à au maximum 90% ou 95% de son influence de contenu énergétique maximum possible.
  8. Procédé de commande suivant la revendication 5, 6 ou 7,
    caractérisé
    en ce que l'épaisseur ( d ) de laminage finale est comprise entre 5 mm et 30 mm.
  9. Procédé de commande suivant l'une des revendications précédentes,
    caractérisé
    en ce, qu'entre le train ( 1 ) finisseur et la section ( 2 ) de refroidissement, est disposée une position ( 7 ) de mesure de la température, au moyen de laquelle la température ( T0 ) superficielle réelle des points ( 13 ) du produit à laminer peut être détectée à l'emplacement de la position ( 7 ) de mesure de la température, et en ce qu'ou bien on ne détecte pas la température ( T0 ) superficielle réelle des points ( 13 ) du produit à laminer à l'emplacement de la position ( 7 ) de mesure de la température, ou bien on détecte certes la température ( T0 ) superficielle réelle des points ( 13 ) du produit à laminer à l'emplacement de la position ( 7 ) de mesure de la température, mais on n'en tire pas parti pour la détermination de la courbe ( E* ) de contenu énergétique de consigne.
  10. Procédé de commande suivant l'une des revendications précédentes,
    caractérisé
    en ce que l'on tire parti de la différence entre un contenu ( T2* ) énergétique de laminage final souhaité et le contenu énergétique caractérisant la valeur ( T2 ) escomptée déterminée pour l'emplacement ( P ) défini à l'avance, pour la détermination de grandeurs de commande des cages ( 3 ) de laminoir, en amont de l'emplacement ( P ) défini à l'avance et/ou des dispositifs ( 5 ) de refroidissement de cage intermédiaire, en amont de l'emplacement ( P ) défini à l'avance.
  11. Procédé de commande suivant l'une des revendications précédentes,
    caractérisé
    en ce que le produit ( 4 ) à laminer plat est un feuillard.
  12. Procédé de commande suivant l'une des revendications précédentes,
    caractérisé
    en ce que le contenu énergétique des points ( 13 ) du produit à laminer est défini par leur température ou par leur enthalpie.
  13. Programme d'ordinateur qui comprend un code ( 12 ) machine, qui peut être exploité par un ordinateur ( 10 ) de commande d'un train de laminage de feuillards à chaud pour le laminage d'un produit ( 4 ) à laminer plat en métal et dont l'exploitation par l'ordinateur ( 10 ) de commande fait que l'ordinateur ( 10 ) de commande fait fonctionner le train de laminage de feuillards à chaud, suivant un procédé de commande ayant tous les stades d'un procédé de commande suivant l'une des revendications précédentes.
  14. Ordinateur de commande d'un train de laminage de feuillards à chaud pour le laminage d'un produit ( 4 ) à laminer plat en métal,
    caractérisé
    en ce que l'ordinateur de commande est constitué de manière à faire fonctionner le train de laminage de feuillards à chaud, suivant un procédé de commande ayant tous les stades d'un procédé de commande suivant l'une des revendications 1 à 12.
  15. Train de laminage de feuillards à chaud pour le laminage d'un produit ( 4 ) à laminer plat en métal,
    - dans lequel le train de laminage de feuillards à chaud comprend un train ( 1 ) finisseur pour le laminage du produit ( 4 ) à laminer plat,
    - dans lequel le train ( 1 ) finisseur a plusieurs cages ( 3 ) de laminage, qui sont parcourues les unes après les autres par le produit ( 4 ) à laminer plat, dans un sens ( x ) de passage,
    - dans lequel le train de laminage de feuillards à chaud comprend une section ( 2 ) de refroidissement, en aval du train ( 1 ) finisseur,
    caractérisé en ce que le train de laminage de feuillards à chaud est équipé d'un ordinateur ( 10 ) de commande suivant la revendication 14.
EP12727821.6A 2011-06-27 2012-06-06 Procédé de commande pour un train à feuillards à chaud Active EP2712332B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP12727821.6A EP2712332B1 (fr) 2011-06-27 2012-06-06 Procédé de commande pour un train à feuillards à chaud

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
EP11171512A EP2540404A1 (fr) 2011-06-27 2011-06-27 Procédé de commande pour un laminoir à bandes à chaud
PCT/EP2012/060738 WO2013000677A1 (fr) 2011-06-27 2012-06-06 Procédé de commande pour un train à feuillards à chaud
EP12727821.6A EP2712332B1 (fr) 2011-06-27 2012-06-06 Procédé de commande pour un train à feuillards à chaud

Publications (2)

Publication Number Publication Date
EP2712332A1 EP2712332A1 (fr) 2014-04-02
EP2712332B1 true EP2712332B1 (fr) 2015-07-29

Family

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EP11171512A Withdrawn EP2540404A1 (fr) 2011-06-27 2011-06-27 Procédé de commande pour un laminoir à bandes à chaud
EP12727821.6A Active EP2712332B1 (fr) 2011-06-27 2012-06-06 Procédé de commande pour un train à feuillards à chaud

Family Applications Before (1)

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EP11171512A Withdrawn EP2540404A1 (fr) 2011-06-27 2011-06-27 Procédé de commande pour un laminoir à bandes à chaud

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US (1) US9815100B2 (fr)
EP (2) EP2540404A1 (fr)
CN (1) CN103619501B (fr)
BR (1) BR112013033435A8 (fr)
WO (1) WO2013000677A1 (fr)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2777835A1 (fr) * 2013-03-14 2014-09-17 Siemens VAI Metals Technologies GmbH Dispositif de refroidissement doté de poutres de pulvérisation avec dispositif d'aération
EP2777836A1 (fr) * 2013-03-14 2014-09-17 Siemens VAI Metals Technologies GmbH Dispositif de refroidissement doté de poutres de pulvérisation avec sorties allongées
DE102013221710A1 (de) 2013-10-25 2015-04-30 Sms Siemag Aktiengesellschaft Aluminium-Warmbandwalzstraße und Verfahren zum Warmwalzen eines Aluminium-Warmbandes
EP2873469A1 (fr) * 2013-11-18 2015-05-20 Siemens Aktiengesellschaft Procédé de fonctionnement pour une voie de refroidissement
PL3089833T5 (pl) 2013-12-20 2023-01-30 Novelis do Brasil Ltda. Dynamiczne przesunięcie redukcji (dsr) w celu regulacji temperatury w walcarkach posobnych
EP2898963A1 (fr) * 2014-01-28 2015-07-29 Siemens Aktiengesellschaft Section de refroidissement avec refroidissement double à une valeur de consigne respective
EP3479916A1 (fr) * 2017-11-06 2019-05-08 Primetals Technologies Germany GmbH Réglage ciblé de contour à l'aide de spécifications correspondantes
CN110849928B (zh) * 2019-10-17 2022-05-03 浙江工业大学 一种超声滚压加工温度测量分析方法
DE102019217966A1 (de) 2019-11-21 2021-05-27 Sms Group Gmbh Einstellung einer Auslauftemperatur eines aus einer Walzstraße auslaufenden Metallbands
DE102019132029A1 (de) * 2019-11-26 2021-05-27 Thyssenkrupp Steel Europe Ag Herstellung eines gewünschten Metallwerkstücks aus einem Metallflachprodukt
CN115401077B (zh) * 2022-08-19 2024-05-28 日照钢铁控股集团有限公司 后滑速度控制方法、装置、介质、设备

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Publication number Priority date Publication date Assignee Title
DE19963186B4 (de) 1999-12-27 2005-04-14 Siemens Ag Verfahren zur Steuerung und/oder Regelung der Kühlstrecke einer Warmbandstrasse zum Walzen von Metallband und zugehörige Vorrichtung
DE10129565C5 (de) 2001-06-20 2007-12-27 Siemens Ag Kühlverfahren für ein warmgewalztes Walzgut und hiermit korrespondierendes Kühlstreckenmodell
DE10156008A1 (de) 2001-11-15 2003-06-05 Siemens Ag Steuerverfahren für eine einer Kühlstrecke vorgeordnete Fertigstraße zum Walzen von Metall-Warmband
WO2004076085A2 (fr) * 2003-02-25 2004-09-10 Siemens Aktiengesellschaft Procede de regulation de la temperature d'une bande metallique, en particulier dans un parcours de refroidissement
DE102004005919A1 (de) * 2004-02-06 2005-09-08 Siemens Ag Rechnergestütztes Modellierverfahren für das Verhalten eines Stahlvolumens mit einer Volumenoberfläche
DE502004005051D1 (de) 2004-04-06 2007-10-31 Siemens Ag Verfahren zum herstellen eines metalls
KR101285990B1 (ko) * 2008-11-19 2013-07-15 도시바 미쓰비시덴키 산교시스템 가부시키가이샤 제어 장치
EP2301685A1 (fr) * 2009-09-23 2011-03-30 Siemens Aktiengesellschaft Procédé de commande pour une installation de traitement d'un produit de laminage étendu en longueur

Also Published As

Publication number Publication date
EP2540404A1 (fr) 2013-01-02
CN103619501B (zh) 2016-01-20
CN103619501A (zh) 2014-03-05
US20140230511A1 (en) 2014-08-21
BR112013033435A8 (pt) 2018-04-03
US9815100B2 (en) 2017-11-14
WO2013000677A1 (fr) 2013-01-03
BR112013033435A2 (pt) 2017-01-31
EP2712332A1 (fr) 2014-04-02

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