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EP2691188B1 - Procédé permettant de faire fonctionner un train de laminoir - Google Patents

Procédé permettant de faire fonctionner un train de laminoir Download PDF

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Publication number
EP2691188B1
EP2691188B1 EP12718185.7A EP12718185A EP2691188B1 EP 2691188 B1 EP2691188 B1 EP 2691188B1 EP 12718185 A EP12718185 A EP 12718185A EP 2691188 B1 EP2691188 B1 EP 2691188B1
Authority
EP
European Patent Office
Prior art keywords
rolling
stand
control computer
flat workpiece
variables
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
EP12718185.7A
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German (de)
English (en)
Other versions
EP2691188A1 (fr
Inventor
Matthias Kurz
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Primetals Technologies Germany GmbH
Original Assignee
Siemens AG
Siemens Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Publication date
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Application filed by Siemens AG, Siemens Corp filed Critical Siemens AG
Priority to EP12718185.7A priority Critical patent/EP2691188B1/fr
Publication of EP2691188A1 publication Critical patent/EP2691188A1/fr
Application granted granted Critical
Publication of EP2691188B1 publication Critical patent/EP2691188B1/fr
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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
    • 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
    • B21B37/28—Control of flatness or profile during rolling of strip, sheets or plates
    • 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
    • B21B37/68—Camber or steering control for strip, sheets or plates, e.g. preventing meandering
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B2263/00—Shape of product
    • B21B2263/02—Profile, e.g. of plate, hot strip, sections

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 train for rolling a flat rolling stock and its execution by the control computer causes the control computer to operate the mill train according to such an operating method.
  • the present invention further relates to a control computer for a rolling mill for rolling a flat rolling stock, wherein the control computer is designed such that it operates the mill train according to such an operating method.
  • the present invention further relates to a rolling mill for rolling a flat rolled stock, which is equipped with such a control computer.
  • the estimated sizes in conjunction with the initial rolling data describing the flat rolling stock before rolling in the rolling stand, and the stand data of the rolling stand, describe the rolling gap resulting from rolling the flat rolled stock in the rolling stand.
  • the control computer determines, using a model, expected sizes expected for the flat rolled stock when the flat rolled stock is rolled in the rolling stand with the set sizes.
  • the control computer varies in the context of Stichplanbetician according to a strategy at least one of the scheduled sizes, so that the determined expected sizes are at least approximated the end sizes.
  • the control computer transfers the variables determined within the stitch plan to a basic automation of the rolling stand, so that the flat rolling stock is rolled in the roll stand according to the varied sizes.
  • From the DE 10 2009 043 400 A1 is a concept for model-based determination of actuator setpoints for a hot strip mill with multiple rolling stands known. With this concept, a desired target contour of the rolling column of the stands can be set when the actuator setpoint values are executed.
  • a desired speed wedging of the hot strip is specified after each stand.
  • values for strip thickness contours at the outlets of the frameworks are determined with the aid of flatness models.
  • the target contour for the tape drive members is determined.
  • the actuator setpoint values are calculated from the target contour for each scaffold with the aid of an optimization method.
  • the shape of the rolling stock is an important factor from the beginning of the process on all intermediate steps. Besides thickness, width, profile and flatness, the wedges (i.e., the asymmetric portion of the thickness across the width of the flat rolled stock) and the saberiness (i.e., the curvature of the flat rolled stock in the rolling plane) are also important parameters. Both a wedge and a saber are undesirable because these sizes (if different from 0) make the further process steps more difficult and even impossible or even result in rejects.
  • the flat rolling stock already has a thickness wedge
  • the pivoting is performed manually by an operator due to the observation of the rolling stock.
  • the object of the present invention is to provide possibilities by means of which an outlet wedge and / or an expiring saber can be specifically predicted and adjusted in a flexible manner.
  • the other roll stand sizes can also be determined as needed.
  • they may comprise a roll-back force and / or a crown of rolls of the roll stand and / or an entanglement and / or a displacement of the rolls of the roll stand against each other.
  • the sizes describing the rolling of the flat rolling stock in the roll stand can be supplemented by further sizes.
  • the further variables may include, for example, the on and / or the outgoing side train in the flat rolling stock and / or the corresponding differences between the drive and operating side and / or the corresponding distributions over the width of the flat rolling stock.
  • the roll contour fraction can be particularly efficiently, i. with relatively little computational effort to be determined.
  • the framework parameters of the rolling stand for the drive and the operating side each comprise their own springing characteristic.
  • the initial data may be purely symmetrical data, for example characterizing the average thickness and the average strength of the flat rolled stock.
  • the initial data additionally comprise variables which are characteristic of a strength wedge-for example a temperature wedge-and / or for a thickness wedge and / or for a (inlet-side) saber of the flat rolling stock.
  • the target discharge wedge and / or the target saber are fixedly assigned to the control computer.
  • the target discharge wedge and / or the target saber can be set to 0.
  • the target discharge wedge and / or the target saber be explicitly specified to the control computer.
  • the control computer determines the target discharge wedge using the initial data of the flat rolling stock. In this case, the control computer may in particular determine the relative wedge, i. the ratio of thickness wedge to medium thickness of the flat rolled material, maintained.
  • the control computer determined over the length of the flat rolled material for several positions respectively the discharge wedge and varies according to the wedge strategy at least one of the scheduled sizes. This procedure is particularly advantageous when the flat rolling stock is a band. However, it is equally applicable if the flat rolling stock is a heavy plate.
  • 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 control computer executes an operating method with all steps of an operating method according to the invention.
  • control computer for a rolling train for rolling a flat rolling stock which is designed such that it carries out such an operating method during operation.
  • the object is further achieved by a rolling mill for rolling a flat rolling stock, which is equipped with such a control computer.
  • FIG. 1 shows a rolling mill for rolling a flat rolling stock 1.
  • the rolling mill is according to FIG. 1 designed as multi-stand rolling train, which has several - usually four to eight - rolling stands 2.
  • the rolling stands 2 of the rolling mill the flat rolling stock 1 is rolled.
  • the rolling train is equipped with a control computer 3.
  • the control computer 3 is designed such that it operates the rolling train according to an operating method with all the steps of an operating method according to the invention.
  • the operating method according to the invention will be explained in more detail below.
  • the corresponding design of the control computer 3 is effected by a computer program 4, with which the control computer 3 is programmed.
  • the computer program 4 can for this purpose on a suitable disk 5 - purely exemplary is the disk in FIG. 1 as a USB memory stick - be saved.
  • the storage on the data carrier 5 is in machine-readable form, as a rule in an exclusively machine-readable form, for example in electronic form.
  • the computer program 4 comprises machine code 6.
  • the machine code 6 can be processed directly by the control computer 3.
  • the processing of the machine code 6 by the control computer 3 causes the control computer 3 to operate the rolling train according to the operating method according to the invention.
  • FIG. 2 - is always complementary FIG. 1 with - are the control computer 3 in a step S1 set framework data.
  • the framework data describe framework parameters of a rolling mill 2 executing a specific rolling process, in particular its spring-back characteristic.
  • the control computer 3 for the specific rolling process in the specific rolling mill 2 initial data are known, which describe the flat rolling stock 1 before rolling in the respective rolling stand 2.
  • the initial data include at least the width b, the average thickness d and a characteristic of the average strength of the flat rolled material 1 size, for example, the temperature T. It is possible that the initial data to the control computer 3 are specified from the outside. Alternatively, it is possible for the control computer 3 to determine the initial data itself. For example, the initial data may result, in whole or in part, from a previous rolling operation that is performed prior to the rolling process now under consideration. This will be explained later become. It is possible for the control computer 3 to carry out the step S2 as part of a passplan calculation.
  • a step S3 the control computer 3 sets in the context of Stichplanbetician sizes that describe the rolling of the flat rolled stock 1 in the respective rolling stand 2. Due to the fact that the control computer 3 executes the step S3 in the stitch plan calculation, the control computer 3 executes the step S3 before starting rolling of the rolling stock 1 in the corresponding rolling mill 2.
  • the stated sizes describe, in conjunction with the initial data d, b, T of the flat rolling stock 1 and the framework data of the respective rolling stand 2, the roll gap, which results in the respective rolling stand 2 during rolling of the flat rolling stock 1. They further describe the asymmetry of the roll gap seen in the direction of the roll axes.
  • the control computer 3 is therefore able to determine in a step S4 within the stitch plan calculation on the basis of the initial data b, d, T, the framework data and the applied variables by means of a wedge model 7 an outlet wedge K, which is expected for the flat rolling stock 1 when the flat rolling stock 1 is rolled in the respective stand 2 with the sizes set.
  • a saber K ' can be determined by means of the wedge model 7, which is expected for the flat rolling stock 1 when the flat rolled stock 1 is rolled in the rolling stand 2 with the sizes set.
  • the wedge model 7 comprises mathematical-physical equations by means of which the behavior of the rolling stand 2 and of the flat rolling stock 1 is described. It is also realized by the computer program 4 or the machine code 6.
  • outlet wedge has the following meaning: An outlet wedge is the asymmetrical portion of the thickness function seen over the bandwidth b.
  • the term “saber” means the curvature of the flat rolled stock 1 to the side.
  • a step S5 the control computer 3 varies as part of the stitch plan calculation according to a wedge strategy at least one of the set sizes.
  • the variation takes place in such a way that the determined discharge wedge K is at least approximated to a desired discharge wedge.
  • the determination can be made such that the saber K 'is approximated to a target saber.
  • a step S6 the control computer 3 transfers the variables determined in the stitch plan calculation to a basic automation 8 of the respective rolling stand 2.
  • the functional dependencies of the outlet wedge K and / or the saber K ' are additionally transferred from the set sizes.
  • the basic automation 8 is thereby able to roll the respective rolling stand 2 in accordance with the varied sizes, while the flat rolling stock 1 passes through the respective rolling stand 2.
  • the step S6 is also executed by the control computer 3 before the flat rolling stock 1 is rolled in the respective rolling stand 2.
  • FIG. 3 includes steps S11 to S16.
  • the steps S11 to S16 are similar to the steps S1 to S6 of FIG FIG. 2 , However, the steps S11 to S16 show more detailed configurations than the steps S1 to S6.
  • steps S11 to S16 can be implemented independently of one another. It is not necessary, for example, to combine the more concrete embodiment of step S11 with the more concrete embodiment of step S13.
  • the sequence of steps S11 and S2 to S6 could be combined or the sequence of steps S1, S2, S13 and S4 to S6 and the like more.
  • step S11-analogous to step S1-the framework data are specified.
  • the framework parameters include of the rolling stand 2 - separately for the drive and the operating side - each have their own Auffederungs characterizing.
  • step S12 the control computer 3 becomes aware of the quantities b, d, T already mentioned in connection with step S2.
  • the initial data may include, for example, a strength wedge-in particular a temperature wedge ⁇ T-and / or a thickness wedge ⁇ d.
  • a variable characteristic of an incoming saber of the flat rolling stock 1 can be known, for example a corresponding curvature k.
  • control computer 3 may be aware of further data in step S12, for example the desired wedge and / or the nominal saber or maximum permissible values for the discharge wedge and / or the outgoing saber.
  • Step S13 shows some of the set sizes.
  • the set sizes are characteristic at least for the total rolling force F.
  • the set sizes are still characteristic of the rolling force difference ⁇ F between the drive and operating side.
  • Other sizes that may be used are further roll stand sizes B, C, ⁇ B that influence the roll contour and the difference in setting ⁇ s between the drive side and the operating side.
  • an offset V can be used with. The offset V indicates how far the flat rolling stock 1, offset relative to the rolling mill center, enters the relevant rolling stand 2.
  • the control computer 3 determines a bending line part K1 from the total rolling force F, the rolling force difference ⁇ F, the other rolling stand sizes B, C, ⁇ B, the width b of the flat rolled material 1, and the offset V. Furthermore, in step S14, the control computer 3 determines a flattening portion K2 on the basis of the total rolling force F, the rolling force difference ⁇ F and the width b of the flat rolling stock 1. Furthermore, the control computer 3 determines in the context of step S14 based on the employment difference ⁇ s and a Gerüstfederfederungsifferenz ⁇ g between the drive and operator side a Verkippungsanteil K3.
  • Abplattungsanteil K2 and the Verkippungsanteil K3 determines the control computer 3 the Auslaufkeil K. If the initial data also includes values for the inlet side wedge and the inlet side saber and continue the incoming and outgoing trains and their differences or distributions are known or a material transverse flow is excluded, in addition, the outlet-side saber K 'can be determined.
  • Steps S15 and S16 are of steps S5 and S6 of FIG FIG. 2 identical.
  • FIG. 4 shows further possible embodiments of the step S13 of FIG. 3 , Analogous to the ratio of FIG. 2 and 3 Steps S21 and S22 are alternatively realizable.
  • the crown C can optionally be actively influenced by local cooling of the rollers 9.
  • the operating method according to the invention can be configured in various ways. Examples of such embodiments are in FIG. 5 shown.
  • FIG. 5 shows various possible embodiments. The embodiments can be implemented independently of each other. Furthermore, the possible embodiments in the context of FIG. 5 explained in connection with steps S1 to S6 already in FIG. 2 were explained. Alternatively, together or individually, steps S11 through S16 of FIG FIG. 3 be used, if necessary in the embodiments according to FIG. 4 ,
  • step S31 the control computer 3 is given the wedge strategy.
  • the control computer can be specified whether it should set the discharge wedge K and / or the saber K 'to 0, whether it should retain an already existing relative asymmetry (possibly in which distribution on discharge wedge K and saber K').
  • step S32 the control computer 3 determines the target discharge wedge and / or the target saber using the initial data of the flat rolling stock 1.
  • the control computer 3 for example, in the case that the flat rolling stock 1 before rolling in the respective rolling stand 2 already has a wedge and / or a saber and further due to the thickness d of the rolling stock 1, a material flow is no longer or only in limited Scope is possible to specify the desired wedge and the target saber such that the target saber is still within tolerable range and the target wedge describes the remaining asymmetry of the flat rolled material 1.
  • the determination of the desired wedge and / or the Sollsäbels in the context of step S32 of course, only if the desired wedge and / or the target saber are not already specified and determined by the wedge strategy as such.
  • steps S36 to S38 may be present.
  • step S36 the control computer 3 receives rolling stand conditions which occur during the rolling of the flat rolling stock 1 in the respective rolling stand 2.
  • the control computer 3 can receive the actual rolling forces and / or the actual rolling force differences or the corresponding values of the bending-back force.
  • step S37 the control computer 3 during the rolling of the flat rolling stock 1 in the respective rolling stand 2 can take sizes that are characteristic of the actual discharge wedge and / or the actual saber of the flat rolled material 1.
  • the actual exit-side train or its difference or distribution can be detected and fed to the control computer 3.
  • corresponding sizes can be accepted after rolling the flat rolled stock 1.
  • the flat rolling stock 1 may be measured after complete rolling in the respective rolling stand 2 under certain circumstances. It is also possible for suitable sizes to be detected at one point or at several locations behind the rolling stand 2 and closed based on the variables on the actual outlet-side curvature of the flat rolling stock 1. Corresponding procedures are known to the person skilled in the art.
  • the control computer 3 can use the quantities taken in the course of the steps S36, S37 and / or S38 for different purposes. For example, it is possible for the control computer 3 to output a visualization of the actual discharge wedge and / or the actual saber of the flat rolling stock 1-for example via a display device or a printer-to an operator 10 in a step S41. Alternatively or additionally, it is possible that the control computer 3 in a step S42, the actual, accepted sizes compares with corresponding expected sizes and adapted the wedge model 7 based on the comparison.
  • control computer 3 can use the quantities received to determine actual states of the flat rolling stock 1 and to take them into account during subsequent processing steps. For example, the control computer 3 can check in a step S43 whether the processing of the flat rolling stock 1 has ended. If this is not the case, the control computer 3 can proceed to a step S44 in which the control computer 3 uses the initial data of the flat rolling stock 1 for a later treatment step - in particular a subsequent rolling process - of the same flat rolling stock 1 or at least using this data determined a part of the initial data of the flat rolling stock 1.
  • the subsequent rolling process can, depending on the type of rolling train, be carried out in the same or in another rolling stand 2.
  • step S46 can additionally be present in addition.
  • the control computer 3 may change the wedge strategy under certain circumstances. For example, the control computer 3 can determine the wedge strategy such that the discharge wedge K and the saber K 'are corrected if and as long as the incoming thickness d of the flat rolling stock 1 is greater than a critical thickness. However, if the thickness d of the flat rolled stock 1 before rolling is (are) smaller than the critical thickness, the control computer 3 may change the wedge strategy so that from this point on, the run-out wedge K existing at that time is maintained. Other possibilities of change are also given.
  • the operating method according to the invention per flat rolled product 1 is executed only once. Preferably, however, it is carried out several times.
  • the control computer 3 according to FIG. 6 over the length of the flat rolling stock Determine a plurality of positions (sections 11) and determine for each section 11 respectively the outlet wedge K and / or the saber K 'and according to the respective given wedge strategy at least one of the set sizes - for example, the rolling force difference ⁇ F or the offset V - in the sense of Approximation to a respective setpoint vary.
  • control computer 3 It is possible for the control computer 3 to carry out the determination of the discharge wedge K and / or the saber K 'for all considered sections 11 before the first section 11 of the rolling stock 1 enters the rolling stand 2 under consideration. However, at least the control computer 3 executes the process for each section 11 at a time before the respective section 11 enters the rolling mill 2 executing the respective rolling process.
  • a flat rolled stock 1 is rolled in a multi-stand rolling mill, wherein the Walzgutlaufraum x is always the same.
  • each rolling pass is made in another rolling stand 2 of the rolling train.
  • This embodiment of the rolling train is particularly suitable when the flat rolling stock 1 is a band. In principle, however, this procedure is equally applicable if the flat rolled stock 1 is a heavy plate (a plate).
  • the rolling train reversing works, that is designed as a reversing mill.
  • the individual rolling operations take place in the same rolling stand 2, wherein the rolling stock running direction x changes from rolling pass to rolling pass.
  • This embodiment is particularly suitable when the flat rolling stock 1 is a heavy plate. In principle, however, it is equally applicable when the flat rolled stock 1 is a strip.
  • the reversing mill is preferably designed as a Steckel mill.
  • the present invention has many advantages.
  • a targeted determination of the outlet wedge K and / or the saber K 'and an integration of this determination in the stitch plan calculation is possible.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Control Of Metal Rolling (AREA)

Claims (12)

  1. Procédé pour faire fonctionner un train de laminoir pour laminer un produit (1) à laminer plat dans au moins une cage (2) de laminoir du train de laminoir,
    - dans lequel on prescrit, à un ordinateur (3) de commande du train de laminoir, des données de cage décrivant des paramètres de la cage (2) de laminoir,
    - dans lequel l'ordinateur (3) de commande fixe, dans le cadre d'un calcul d'un schéma des réductions, des grandeurs (F, δF, G, δs, V) décrivant le laminage du produit (1) à laminer plat dans la cage (2) de laminage,
    - dans lequel des grandeurs (F, δF, G, δs, V) fixées décrivent, en liaison avec des données (b, d, T) initiales décrivant le produit (1) à laminer plat avant le laminage dans la cage (2) de laminoir et les données de la cage (2) de laminoir, l'emprise résultant du laminage du produit (1) à laminer plat dans la cage (1) de laminage et sa dissymétrie,
    - dans lequel les grandeurs (F, δF, G, δs, V) décrivant le laminage du produit (1) à laminer plat dans la cage (1) de laminoir sont caractéristiques de la force (F) globale de laminage de la différence (δF) de force de laminage entre le côté d'entraînement et le côté de commande et de la différence (δs) de serrage entre le côté d'entraînement et le côté de commande,
    - dans lequel les données (b, d, T) initiales comprennent des grandeurs caractéristiques d'au moins la largeur (b), l'épaisseur (d) moyenne et la résistance moyenne du produit (1) à laminer plat,
    - dans lequel l'ordinateur (3) de commande détermine, dans le cadre du calcul du schéma des réductions, à l'aide des données (b, d, T) initiales, des données de la cage et des grandeurs (F, δF, G, δs, V) fixées, au moyen d'un modèle (7) de coin, un coin (K) de sortie et/ou une incurvation (K'), qui sont escomptés pour le produit (1) à laminer plat lorsque le produit (1) à laminer plat est laminé dans la cage (2) de laminoir avec les grandeurs (F, δF, G, δs, V) fixées,
    - dans lequel on prescrit à l'ordinateur (3) de commande de l'extérieur une stratégie de coin,
    - les grandeurs (F, δF, G, δs, V) décrivant le laminage du produit (1) à laminer dans la cage (2) de laminoir sont caractéristiques, en outre, d'au moins une autre grandeur (B, C, δB) de cage de laminoir, influençant le contour des cylindres, ainsi que du décalage (V) du produit (1) à laminer plat par rapport au milieu de la cage de laminoir,
    - l'ordinateur (3) de commande détermine
    -- à l'aide de la force (F) globale de laminage, de la différence (δF) de force de laminage entre le côté d'entraînement et le côté de commande, des autres grandeurs (B, C, δB) de la cage de laminoir, de la largeur (B) du produit (1) à laminer plat et du décalage (V) du produit (1) à laminer plat par rapport au milieu de la cage de laminoir, une proportion de contour des cylindres,
    -- à l'aide de la différence (δS) de serrage entre le côté d'entraînement et le côté de commande et d'une différence (δq) d'élargissement élastique de la cage entre le côté d'entraînement et le côté de commande, une proportion (K3) d'empilage et
    -- à l'aide de la proportion de contour des cylindres et de la proportion (K3) d'empilage, le coin (K) de sortie et/ou l'incurvation (K'),
    - l'ordinateur (3) de commande modifie, dans le cadre du calcul du schéma des réduction, suivant une stratégie de coin donnée à l'avance, au moins l'une des grandeurs (F, δF, G, δs, V) fixées de manière à ce que le coin (K) de sortie déterminé se rapproche au moins d'un coin de sortie de consigne et/ou de manière à ce que l'incurvation (K') s'approche au moins d'une incurvation de consigne et
    - l'ordinateur (3) de commande transmet à une automatisation (8) de base de la cage (2) de laminoir les grandeurs (F, δF, G, δs, V) modifiées déterminées dans la cadre du calcul du schéma des réduction, de manière à ce que le produit (1) à laminer plat soit laminé dans la cage (2) de laminoir suivant les grandeurs (F, δF, G, δs, V) modifiées.
  2. Procédé de fonctionnement suivant la revendication 1,
    caractérisé
    en ce que les autres grandeurs (B, C, δB) de la cage de laminoir comprennent une force (B) de rétroflexion des cylindres et/ou un bombement (C) des cylindres (9) de la cage (2) de laminoir et/ou une position en quinconce et/ou un décalage des cylindres (9) de la cage (2) de laminoir.
  3. Procédé de fonctionnement suivant la revendication 1 ou 2,
    caractérisé
    en ce que les grandeurs (F, δF, G, δs, V) décrivant le laminage du produit (1) à laminer plat dans la cage (2) de laminoir comprennent, en outre, la traction (Z, Z') du côté de l'entrée et/ou de la sortie dans le produit (1) à laminer plat et/ou les différences (δZ, δZ') correspondantes entre le côté d'entraînement et le côté de commande et/ou les répartitions correspondantes sur la largeur (B) du produit (1) à laminer plat.
  4. Procédé de fonctionnement suivant la revendication 1, 2 ou 3,
    caractérisé
    en ce que l'ordinateur (3) de commande détermine
    - à l'aide de la force (F) globale de laminage, de la différence (δF) de la force de laminage entre le côté d'entraînement et le côté de commande, des autres grandeurs (B, C, δB) de la cage de laminoir, de la largeur (b) du produit (1) à laminer plat et du décalage (V) du produit (1) à laminer plat par rapport au milieu de la cage de laminoir, une proportion (K1) de lignes de flexion,
    - à l'aide de la force (F) globale de laminage, de la différence (δF) de la force de laminage entre le côté d'entraînement et le côté de commande et de la largeur (b) du produit (1) à laminer plat, une proportion (K2) d'aplatissement et
    - à l'aide de la proportion (K1) de lignes de flexion et de la proportion (K2) d'aplatissement, la proportion du contour des cylindres.
  5. Procédé de fonctionnement suivant l'une des revendications précédentes,
    caractérisé
    en ce que les paramètres de la cage (2) de laminoir comprennent, pour le côté d'entraînement et le côté de commande, respectivement, une caractéristique d'élargissement élastique propre.
  6. Procédé de fonctionnement suivant l'une des revendications précédentes,
    caractérisé
    en ce que les données (b, d, T) initiales comprennent, en outre, des grandeurs caractéristiques d'un coin de résistance - par exemple un coin (δT) de température - et/ou d'un coin (δd) d'épaisseur et/ou d'une incurvation du produit (1) à laminer plat.
  7. Procédé de fonctionnement suivant l'une des revendications précédentes,
    caractérisé
    en ce que l'ordinateur (3) de commande détermine le coin de sortie de consigne et/ou l'incurvation de consigne en utilisant des données (b, d, T) initiales du produit (1) à laminer plat.
  8. Procédé de fonctionnement suivant l'une des revendications précédentes,
    caractérisé
    en ce que l'ordinateur (3) de commande détermine, considéré sur la longueur du produit (1) à laminer plat pour plusieurs positions (11) respectivement, le coin (K) de sortie et/ou l'incurvation (K') et, suivant la stratégie de coin, modifie au moins l'une des grandeurs (F, δF, G, δs, V) fixées.
  9. Procédé de fonctionnement suivant l'une des revendications précédentes,
    caractérisé
    en ce que l'ordinateur (3) de commande reçoit des états de la cage de laminage se produisant pendant le laminage du produit (1) à laminer plat dans la cage (2) de laminoir et/ou, après le laminage du produit (1) à laminer plat dans la cage (2) de laminoir, des grandeurs caractéristiques du coin de sortie réel et/ou d'incurvation réelle du produit (1) à laminer plat et en ce que l'ordinateur (3) de commande utilise les grandeurs reçues,
    - pour la détermination d'une partie ou directement comme partie des données (b, d, T) initiales du produit (1) à laminer plat pour au moins une opération de laminage ultérieure du même produit (1) à laminer plat dans la même cage (2) de laminoir ou dans une autre cage (2) de laminoir,
    - pour l'adaptation du modèle (7) de coin et/ou
    - pour la visualisation du coin de sortie réel et/ou de l'incurvation réelle du produit (1) à laminer plat.
  10. Programme d'ordinateur, qui comprend un code (6) machine, qui peut être exécuté directement par un ordinateur (3) de commande d'un train de laminoir pour laminer un produit (1) à laminer plat et dont l'exécution par l'ordinateur (3) de commande fait que l'ordinateur (3) de commande fait fonctionner le train de laminoir suivant un procédé de fonctionnement ayant tous les stades d'un procédé de fonctionnement suivant l'une des revendications précédentes.
  11. Ordinateur de commande d'un train de laminoir pour laminer un produit (1) à laminer plat,
    caractérisé
    en ce que l'ordinateur de commande est constitué de manière à faire fonctionner le train de laminoir suivant un procédé de fonctionnement ayant tous les stades d'un procédé de fonctionnement suivant l'une des revendications 1 à 9.
  12. Train de laminoir pour laminer un produit (1) à laminer plat,
    caractérisé
    en ce que le train de laminoir est équipé d'un ordinateur (3) de commande suivant la revendication 11.
EP12718185.7A 2011-05-24 2012-04-27 Procédé permettant de faire fonctionner un train de laminoir Active EP2691188B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP12718185.7A EP2691188B1 (fr) 2011-05-24 2012-04-27 Procédé permettant de faire fonctionner un train de laminoir

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
EP11167282A EP2527052A1 (fr) 2011-05-24 2011-05-24 Procédé de fonctionnement pour une voie de laminage
PCT/EP2012/057814 WO2012159849A1 (fr) 2011-05-24 2012-04-27 Procédé permettant de faire fonctionner un train de laminoir
EP12718185.7A EP2691188B1 (fr) 2011-05-24 2012-04-27 Procédé permettant de faire fonctionner un train de laminoir

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Publication Number Publication Date
EP2691188A1 EP2691188A1 (fr) 2014-02-05
EP2691188B1 true EP2691188B1 (fr) 2015-06-17

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EP12718185.7A Active EP2691188B1 (fr) 2011-05-24 2012-04-27 Procédé permettant de faire fonctionner un train de laminoir

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US (1) US9586245B2 (fr)
EP (2) EP2527052A1 (fr)
CN (1) CN103547383B (fr)
BR (1) BR112013030000A2 (fr)
WO (1) WO2012159849A1 (fr)

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EP2527052A1 (fr) 2011-05-24 2012-11-28 Siemens Aktiengesellschaft Procédé de fonctionnement pour une voie de laminage
EP2910316A1 (fr) 2014-02-21 2015-08-26 Primetals Technologies Germany GmbH Précommande simple du pas de filetage d'un ébaucheur
EP2957360A1 (fr) 2014-06-16 2015-12-23 Siemens Aktiengesellschaft Procédé de fonctionnement d'un train de laminoir
CN104190721B (zh) * 2014-09-04 2017-03-15 广东韶钢松山股份有限公司 一种轧机雪橇分段投入装置的操作方法及其应用
JP6688115B2 (ja) * 2016-03-18 2020-04-28 株式会社神戸製鋼所 制御方法選択支援システム
JP6805993B2 (ja) * 2017-07-24 2020-12-23 Ｊｆｅスチール株式会社 厚鋼板の圧延方法および製造方法
EP3479916A1 (fr) * 2017-11-06 2019-05-08 Primetals Technologies Germany GmbH Réglage ciblé de contour à l'aide de spécifications correspondantes
EP3714999B1 (fr) 2019-03-28 2022-09-28 Primetals Technologies Germany GmbH Détermination de la nomination d'un rouleau
EP3854494B1 (fr) * 2020-01-24 2022-09-28 Primetals Technologies Germany GmbH Répartition dépendante de la fréquence des grandeurs de réglage permettant de changer la section transversale de produit laminé dans un laminoir
WO2023146701A1 (fr) * 2022-01-27 2023-08-03 Novelis Inc. Système et procédé de commande de filetage dans un laminoir
JP7626100B2 (ja) * 2022-06-03 2025-02-04 Ｊｆｅスチール株式会社 熱間圧延におけるレベリング制御方法、レベリング制御装置、熱間圧延設備、及び熱間圧延鋼帯の製造方法

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Also Published As

Publication number Publication date
CN103547383B (zh) 2016-08-24
US9586245B2 (en) 2017-03-07
EP2691188A1 (fr) 2014-02-05
WO2012159849A1 (fr) 2012-11-29
EP2527052A1 (fr) 2012-11-28
US20140100686A1 (en) 2014-04-10
BR112013030000A2 (pt) 2016-09-13
CN103547383A (zh) 2014-01-29

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