EP3000539B1 - Procédé destinés à couler et laminer un produit en coulée continue - Google Patents

Procédé destinés à couler et laminer un produit en coulée continue Download PDF

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Publication number
EP3000539B1
EP3000539B1 EP14186114.6A EP14186114A EP3000539B1 EP 3000539 B1 EP3000539 B1 EP 3000539B1 EP 14186114 A EP14186114 A EP 14186114A EP 3000539 B1 EP3000539 B1 EP 3000539B1
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EP
European Patent Office
Prior art keywords
strip
rolling
casting machine
drive
soll
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
EP14186114.6A
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German (de)
English (en)
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EP3000539A1 (fr
Inventor
Michael Breuer
Axel Weyer
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SMS Group GmbH
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SMS Group GmbH
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Filing date
Publication date
Priority to EP14186114.6A priority Critical patent/EP3000539B1/fr
Application filed by SMS Group GmbH filed Critical SMS Group GmbH
Priority to RU2017113766A priority patent/RU2683671C2/ru
Priority to PCT/EP2015/067910 priority patent/WO2016045847A1/fr
Priority to US15/514,249 priority patent/US10821502B2/en
Priority to KR1020177009253A priority patent/KR101924003B1/ko
Priority to CN201580060186.2A priority patent/CN107073534B/zh
Priority to JP2017516164A priority patent/JP6413014B2/ja
Publication of EP3000539A1 publication Critical patent/EP3000539A1/fr
Application granted granted Critical
Publication of EP3000539B1 publication Critical patent/EP3000539B1/fr
Active legal-status Critical Current
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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
    • B21B37/46—Roll speed or drive motor control
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
    • B22D11/16—Controlling or regulating processes or operations
    • B22D11/20—Controlling or regulating processes or operations for removing cast stock
    • 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
    • B21B1/46—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 metal immediately subsequent to continuous casting
    • B21B1/463—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 metal immediately subsequent to continuous casting in a continuous process, i.e. the cast not being cut before rolling
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B11/00—Subsidising the rolling process by subjecting rollers or work to vibrations, e.g. ultrasonic vibrations
    • 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
    • B21B37/16—Control of thickness, width, diameter or other transverse dimensions
    • B21B37/24—Automatic variation of thickness according to a predetermined programme
    • B21B37/26—Automatic variation of thickness according to a predetermined programme for obtaining one strip having successive lengths of different constant thickness
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
    • B22D11/06—Continuous casting of metals, i.e. casting in indefinite lengths into moulds with travelling walls, e.g. with rolls, plates, belts, caterpillars
    • B22D11/0622—Continuous casting of metals, i.e. casting in indefinite lengths into moulds with travelling walls, e.g. with rolls, plates, belts, caterpillars formed by two casting wheels
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
    • B22D11/12—Accessories for subsequent treating or working cast stock in situ
    • B22D11/1226—Accessories for subsequent treating or working cast stock in situ for straightening strands
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
    • B22D11/12—Accessories for subsequent treating or working cast stock in situ
    • B22D11/124—Accessories for subsequent treating or working cast stock in situ for cooling
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
    • B22D11/14—Plants for continuous casting
    • B22D11/142—Plants for continuous casting for curved casting
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
    • B22D11/14—Plants for continuous casting
    • B22D11/143—Plants for continuous casting for horizontal casting
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
    • B22D11/16—Controlling or regulating processes or operations
    • 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
    • B21B2037/002—Mass flow control
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B2275/00—Mill drive parameters
    • B21B2275/10—Motor power; motor current
    • B21B2275/12—Roll torque
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
    • B22D11/12—Accessories for subsequent treating or working cast stock in situ
    • B22D11/1206—Accessories for subsequent treating or working cast stock in situ for plastic shaping of strands
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
    • B22D11/12—Accessories for subsequent treating or working cast stock in situ
    • B22D11/128—Accessories for subsequent treating or working cast stock in situ for removing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
    • B22D11/12—Accessories for subsequent treating or working cast stock in situ
    • B22D11/128—Accessories for subsequent treating or working cast stock in situ for removing
    • B22D11/1282—Vertical casting and curving the cast stock to the horizontal

Definitions

  • the invention relates to a method and a casting-rolling plant for casting and rolling an endless strand of metal, in particular steel.
  • FIG. 1 A known casting-rolling plant for casting and rolling an endless continuous material is exemplary in FIG. 1 shown.
  • the casting / rolling plant 100 shown there comprises a continuous casting machine 110, a rolling mill 120 downstream of the continuous casting machine, a cooling section 170 downstream of the rolling line, a separating device 180 connected downstream of the cooling section, and a reeling device 190 for coiling the strand material 200
  • Continuous casting machine 110 a mold 111, one of the mold downstream strand guide 112 and typically a separator 180.
  • the separator 180 is used to separate a so-called cold strand.
  • the melt solidifies in the mold and in this way, the strand shell of a strand material is formed.
  • the thus formed, internally still liquid, extruded material is after leaving the mold 111 supported in the strand guide 112 by means of strand guide rollers 113 and deflected from the vertical to the horizontal.
  • the strand guide rollers 113_i are actively driven at least partially by means of drives 114_i.
  • the drives 114_i are driven by a strand guide roller drive controller 117.
  • the roughing stands is followed by a heater, preferably an inductive heater 129, around the pre-rolled stock 200 to a desired finish rolling temperature to heat up before it subsequently enters a group of (finish) rolling stands 122_4 to N and is finish-rolled there to a desired final rolling thickness.
  • the individual rolling stands 122_n are typically associated with individual drives 124_n, which are individually controlled by a higher-level drive control 128.
  • the path coordinate which is equivalent to the casting direction or the material flow direction, is in FIG. 1 denoted by the reference numeral x.
  • FIG. 2 shows a detail of the just with reference to FIG. 1 described and known in the prior art casting-rolling plant 100.
  • the same technical elements are shown, these are denoted by the same reference numerals as in FIG. 1 designated.
  • the strand guide roller designated by the reference symbol 113a is not driven in contrast to the strand guide rollers 113_i.
  • the sump tip 160 and its actual position along the path coordinate x are designated by the reference symbol X_S_Ist.
  • the thicknesses of the product strand 200 at the exit of the continuous casting machine 110 are denoted by the reference H0, at the exit of the first rolling stand by the reference H1 and at the outlet of the second rolling stand by the reference H2.
  • the essential characteristic in the production of endless extrudate 200 or in continuous rolling is that the extruded product 200 is not severed from its production in the mold 111 through its solidification in strand guide 112 until rolling or thickness reduction in the rolling mill 120.
  • the above-mentioned separation of the dummy bar at the outlet of the strand guide 112 is not contradictory, because the cold strand is not yet the actual continuous strand material.
  • a separation of the endless strand material takes place only with the help of the separator 180 in FIG. 1 immediate in front of the reeling device 190, in order then to cut the previously endlessly rolled stock 200 to desired coil lengths.
  • the mass flow in a coupled casting-rolling process is basically constant at each point of the casting-rolling plant 100. Disturbances of this constancy, however, can occur, for example, when the strand 200 accumulates (loops then form) or when it is stretched (the strand can also tear in the limit). Causes of such discontinuities in the mass flow are z. For example, if the casting machine does not continuously nach culinaryt material or the mass flow or the reels do not provide adequate drainage of the mass flow or the strand material.
  • Another possibility for controlling the mass flow, in particular within a (finished) rolling train is to incorporate a storage unit for the rolling stock in the mass flow and to control the mass flow by suitable variations of the stored volume of the material to be controlled.
  • Such memory can z. B. be realized in the form of loop memories. With material thicknesses of the material to be extruded greater than 20 mm, depending on the material, however, form no loops due to high rigidity. Especially in the area behind the casting machine, this possibility can therefore not be used with the said large material thicknesses.
  • a loop control is known, for example, from the Japanese patent application JP 2007185703 A ,
  • the preamble of claim 1 is based on EP 2 346 625 B1 ,
  • JP 55014133 A JP 55014134 A .
  • JP S60 227958 A and JP 60221103 A as well as the German patent application DE 20 2004 010038 A1 directed.
  • the invention has the object of developing a known method and a known casting-rolling plant for casting and rolling of extruded material to the effect that the drives of both the continuous casting machine as well as of the rolling mill with respect to one of the two plant parts the same and constant mass flow are synchronized in a higher order.
  • the first rolling stand acts as a "speed master” or as a "mass flow master”.
  • the mass flow results from the thickness of the material to be stranded at the inlet and at the outlet of the first stand and the speed of the work rolls of the first stand. The speed will, as will be described later, determined and specified by means of a pass schedule model.
  • Another advantage of the claimed solution is that a speed detection can be saved both in the strand guide rollers as well as the rollers of the rolling stands.
  • the claimed speed specification only in the first roll stand with simultaneous torque input for the strand guide rollers advantageously allows automatically the desired constancy of the mass flow in both parts of the plant, ie both in the continuous casting machine as well as in the rolling mill.
  • Due to the claimed specification of the target speed with only a single drive within the continuous casting and the rolling mill ensures that it is not to disturbances in the constancy of mass flow, z. B. comes due to not exactly synchronized drives with speed specification.
  • the thickness threshold is, for example, 40 - 20 mm. It depends on the material properties of the material to be extruded, for example on the modulus of elasticity of the material to be stranded.
  • the slip is monitored by at least one of the strand guide rollers and, if necessary, counteracted when the risk of slippage of the slip-monitored strand guide roller is detected.
  • the position of the sump tip of the strand material within the strand guide is controlled by suitable variations of manipulated variables to a predetermined desired position.
  • the controlled system d. H. the solidification process in the continuous casting machine, simulated by means of a solidification model.
  • the manipulated variables are calculated in absolute terms by a controller and output to the solidification model.
  • the manipulated variables which may affect the position of the sump tip, it is in particular the strength of the cooling of the strand material in the casting machine, the cross-sectional format, in particular the thickness of the material at certain points within and at the output of the strand guide, the casting speed and the geometry the casting machine.
  • the geometry of the casting machine reflects its mechanical structure, such as the length, the position of the roll, the shape of the mold, the arrangement of the cooling, etc.
  • the invention provides that the desired torque for driving the at least one driven strand guide roller in accordance with the value for the thickness of the strand material at the output of the strand guide and the value for the casting speed, each in the steady state of the casting-rolling plant, as well calculated and specified in accordance with the value for the strand extraction sum moment and (the courses) of the strand shell thickness and the temperature of the strand material within and at the exit of the strand guide from the continuous casting machine drive model.
  • the desired torques for the drives of the strand guide rollers over the length of the strand guide are given suitably distributed by the Strangg automatmaschinenAntriebsmodell, taking into account the continuous casting, the Strangauszugs cumulative moment and taking into account (the distribution) of the thickness of the strand shell and the temperature of the material over the length of the strand guide.
  • the Strangauszugssummmenmoment can be determined from the sum of the individual strand rolling moments when casting the strand or determined by the solidification model.
  • the setpoint torques are predetermined by the continuous casting machine drive model in such a way that they increase in a first range from the mold outlet to the actual position of the sump tip of the strand within the strand guide and in a second range from the position of the sump tip to the metallurgical length Continuous casting machine remain constant.
  • the method also allows the adaptation of the rolling thicknesses H0 to HN during operation by the setting of the casting thickness is done dynamically by a flexible employment of the strand guide rollers and at the same time the target torques are adjusted. These are determined by the combination of solidification model and continuous casting machine drive model.
  • the control commands z. B. to adjust the rolling thicknesses are forwarded time and place to the appropriate Stauerrollan einen and their drives. Due to the pass schedule model, which then recalculates the control variables with the correspondingly changed boundary conditions, the rolling train also receives new setpoint values for speed, torques and the rolling thicknesses H1 to HN in time and place. Thus, a change in thickness for the finished strip can be done without the system must be restarted.
  • the abovementioned object of the invention is furthermore achieved in terms of device technology by the cast-rolling plant claimed according to claim 14.
  • the advantages of this solution basically correspond to the advantages mentioned above with reference to the claimed method. It is essential that the entire casting-rolling plant, d. H.
  • the stitch plan model unit and the continuous casting machine drive model unit are / are designed to carry out the method according to the invention.
  • the cast-rolling plant according to the invention preferably comprises a sump tip control loop for controlling the position of the sump tip of the material strand within the strand guide, a slip detection unit and / or a mass flow control loop for controlling the mass flow of the strand between two, preferably adjacent rolling mills of the rolling train the Stranggut there suitable for looping elastic or flexible, for example, if its thickness between the rolling stands falls below a predetermined thickness threshold.
  • the first rolling stand of the rolling train, to which the target rotational speed is predetermined according to the invention, is a roughing stand.
  • the starting point of the concept according to the invention is a control circuit 130 for controlling the position of the sump tip to a predetermined desired position X_S_Soll within the strand guide 112.
  • the starting point of the inventive concept for controlling the drives Target position X_S_Soll corresponds to a predetermined position of the path components x.
  • the sump tip control loop 130 provides that the respective current actual position of the sump tip 160 is simulated or theoretically calculated with the aid of a solidification model 134, which forms the controlled system of the sump tip control loop 130.
  • the thus determined actual position X_S_Ist is compared with the predetermined desired position X_S_Soll and a possibly found in the comparison deviation is fed as a controlled variable a controller 132 as an input variable.
  • the controller determines suitable values for specific manipulated variables 133, which are suitable for influencing the position of the sump tip, in accordance with the control deviation and on the basis of a predetermined control strategy.
  • These manipulated variables are, in particular, the strength of the cooling of the material to be stranded within the mold and / or within the strand guide, ie, overall within the casting machine, by the cross-sectional format, in particular the thickness h (x) of the material at certain points inside and outside the strand Strand guide, the casting speed V_G and the geometry of the casting machine.
  • the appropriate values or changes in the values determined by the controller become the solidification model supplied as inputs 133.
  • the said manipulated variables 133 change, if at all, only marginally. It is expected that the actual position of the sump tip 160 recalculated by the solidification model based on the supplied changed input variables is better adapted to the desired target position; please refer Fig. 4 ,
  • the stitch plan model 126 for the rolling mill 120 is, in each case in the steady state of the continuous casting machine 110, the stitch plan model 126 for the rolling mill 120 as input variables.
  • the stitch plan model is preferably also the thicknesses H1, H2 supplied at the output of the first and second rolling stand as input variables.
  • the thicknesses H1 and H2 can also be independently determined by the pass-through plan model. This is advantageous for. B. possible under the criteria of the target thickness HN and the load limit of the rolling stands.
  • the pass-schedule model 126 then calculates a setpoint speed n1_setpoint for the drive 124_1 of the first rolling stand n1 and the setpoint torques Mn_setpoint for the drives 124_n of the remaining rolling stands 122 n2 to 122_N, if present in the rolling line 120, in accordance with said input variables.
  • the thus calculated setpoint speed n1_Soll for the drive 124_1 of the first roll stand 122_1 is then output to the drive control 128 of the rolling train, so that it in turn drives the drive 124_1 accordingly.
  • the specification of the setpoint speed for the first roll stand is made to the drive control 128 taking into account a correction value d_n.
  • connection of the setpoint torques Mn_Soll calculated by the pass-up plan model 126 to the drives 124_n with 2 ⁇ n ⁇ N takes place fundamentally via the drive control 128.
  • This torque connection for the drives can basically be implemented for arbitrarily thin strand qualities, in particular for Strand grades with a thickness of> 0.6 mm. This first alternative is in FIG. 3 not shown.
  • FIG. 3 shows a second alternative for the case that the thickness of the material behind a k-th roll stand 122_k k ⁇ 1 falls below a predetermined thick threshold H_Lim.
  • the drives 124_n with k + 1 ⁇ n ⁇ N and with k ⁇ 1 for the rolling stands 122_n with k + 1 ⁇ n ⁇ N do not have one of the Stitch plan model predetermined target torque can be applied to keep the mass flow in the area of these rolling stands in accordance with the mass flow predetermined by the first roll stand 122_1 constant. Instead, the mass flow in the area of the subsequent stands is kept constant by providing a loop control at least between these individual stands.
  • FIG. 6 An example of a known mass flow control loop 140 is shown in FIG. 6 shown, wherein the mass flow between two stands by means of a mass flow observer 142 is observed or detected, so that subsequently a mass flow controller 144 can output suitable control signals to the drive controller 128 and the drive of the slack store upstream and / or downstream rolling stand 122_n.
  • the said setting parameters that is to say the thickness H0 of the strand material 200 at the exit of the continuous casting machine 110 and the casting speed V_G in the steady state, are supplied not only to the pass line model 126 for the rolling train but also to the continuous casting machine drive model 115 as input variables.
  • it receives the distribution of the shell thickness f (x) calculated by the solidification model as long as the strand is not solidified along the path component x, the thickness distribution also calculated by the solidification model h (x) of the material to be stranded 200 along the path component x as well as the predetermined summation separation torque M_G, which corresponds to the sum of all setpoint torques of the individual drives within the strand guide.
  • the continuous casting machine drive model 115 calculates suitable setpoint torques Mi_Soll for the individual drives 114_i within the strand guide 112. These setpoint values are output via the strand guide roller drive control 117 to the drives 114_i; see also FIG. 5 ,
  • FIG. 5 shows the said continuous casting machine drive model 115 with its input variables, which it evaluates in order to calculate therefrom an appropriate distribution of the specified target torques Mi_Soll for the individual drives 114_i within the strand guide 112 along the path component x.
  • the amount of setpoint torques in the x-direction initially increases starting from the output of the mold, until at the level of the current position of the sump tip X_S_Ist a predetermined maximum value is reached. This maximum value for the torque of the drives is then maintained within the strand guide until reaching its metallurgical length L_G.

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

Claims (13)

  1. Procédé pour l'exploitation d'une installation de coulée-laminage (100) pour la coulée et le laminage d'un produit sans fin sous la forme d'une barre de coulée continue (200), l'installation de coulée-laminage comprenant une machine de coulée continue (110) et un train de laminoir (120) monté à la suite de la machine de coulée continue ;
    dans lequel la machine de coulée continue (110) présente une lingotière (111), un guidage de barre de coulée continue monté à la suite de la lingotière (112), comprenant des rouleaux de guidage de barres de coulée continue (113_i), comprenant au moins un entraînement (114) pour l'entraînement d'au moins un des rouleaux de guidage de barres de coulée continue (113), un modèle d'entraînement des machines de coulée continue (115) et une commande d'entraînement des rouleaux de guidage de barres de coulée continue (117) ;
    dans lequel le laminoir (120) présente n cages de laminoir (122_n), n possédant une valeur de 1 à N, avec des entraînements respectifs (124) pour ses cylindres, un modèle de de planification de coulée (126) et une commande d'entraînement (128) pour la commande des entraînements (124) des cylindres ; et
    dans lequel le procédé présente les étapes suivantes dans lesquelles :
    on commande l'entraînement (124) pour les cylindres de la première cage de laminoir (122_1) via la commande d'entraînement (124) en réponse à une valeur de consigne par défaut du modèle de planification de coulée (126) ; et
    on commande l'entraînement (114) dudit au moins un rouleau de guidage de barre de coulée continue (113) via la commande d'entraînement des rouleaux de guidage de barres de coulée continue (117) en réponse à une valeur de consigne par défaut du modèle d'entraînement des machines de coulée continue (115) ;
    caractérisé
    en ce que le modèle de planification de coulée (126) attribue, à titre de valeur de consigne par défaut, une vitesse de rotation de consigne (n1_soll) pour l'entraînement (124_1) de la première cage de laminoir (122_1) du train de laminoir (126) ; et
    en ce que le modèle d'entraînement des machines de coulée continue (115) attribue, à titre de valeur de consigne par défaut, un couple de rotation de consigne (Mi_soll) pour l'entraînement (114_i) dudit au moins un rouleau entraîné de guidage de barre de coulée continue (113_i).
  2. Procédé selon la revendication 1, caractérisé en ce que le modèle de planification de coulée (126) attribue respectivement un couple de rotation de consigne individuel (Mn_soll) pour les entraînements (124_n) des cylindres des cages de laminoir n = 2 à N.
  3. Procédé selon la revendication 1, caractérisé en ce que le modèle de planification de coulée (126) attribue respectivement un couple de rotation de consigne individuel (Mn_soll) pour les entraînements (124) des cylindres des cages de laminoir (122_n) n = 2 à k avec 2 ≤ k ≤ N, lorsque l'épaisseur (Hk) du produit (200) sous la forme d'une barre de coulée continue à sa sortie de la kième cage de laminoir dépasse vers le bas une valeur seuil d'épaisseur prédéfinie (H_lim) ; et
    en ce que le flux massique - lorsqu'on regarde dans la direction du flux de matière (x) - derrière la kième cage de laminoir est alors maintenu constant à l'aide d'une formation en boucle commandée ou réglée du produit sous la forme d'une barre de coulée continue (200).
  4. Procédé selon la revendication 3, caractérisée en ce que, pour la commande de la formation en boucle, on surveille la position actuelle respective de la boucle du produit sous la forme d'une barre de coulée continue en se référant à une position de consigne prédéfinie.
  5. Procédé selon la revendication 3 ou 4, caractérisé en ce qu'on prédéfinit la valeur seuil de l'épaisseur (H_lim) à la sortie de la kième cage de laminoir en fonction du module d'élasticité de la matière du produit (200) sous la forme d'une barre de coulée continue.
  6. Procédé selon l'une quelconque des revendications précédentes, caractérisé en ce qu'on surveille le glissement d'au moins un certain nombre des rouleaux de guidage de barres de coulée continue (113_i) et en ce qu'on inverse la commande, en cas de nécessité, lorsqu'un risque de patinage du rouleau de guidage de la barre de coulée continue existe (113_i), pour lequel on enregistre le glissement.
  7. Procédé selon l'une quelconque des revendications précédentes, caractérisé en ce qu'on règle la position (X_S_Ist) de la pointe du cône liquide (160) du produit sous la forme d'une barre de coulée continue (200) à l'intérieur du guidage de barre de coulée continue (112) via une variation appropriée des grandeurs de commande d'un modèle de solidification (134) à une position de consigne prédéfinie (X_S_soll).
  8. Procédé selon la revendication 7, caractérisé en ce que, en ce qui concerne les grandeurs de commande, il s'agit en particulier de l'ampleur du refroidissement du produit sous la forme d'une barre de coulée continue (200) dans la machine de coulée (110), du format en section transversale, en particulier de l'épaisseur (h(x)) du produit sous la forme d'une barre de coulée continue (200) à des endroits déterminés au sein du guidage de barre de coulée continue (112) et à la sortie de ce dernier, de la vitesse de coulée (V_G) et de la géométrie de la machine de coulée.
  9. Procédé selon la revendication 8, caractérisé en ce qu'on calcule et on prédéfinit la vitesse de rotation de consigne (n1_soll) pour l'entraînement (124_1) des cylindres de travail de la première cage de laminoir (122_1) n = 1, et les couples de rotation de consigne pour les entraînements des cylindres de travail des cages de laminoir (122_n) n = 2 à N, en fonction des valeurs que l'on obtient pour l'épaisseur (H0) du produit sous la forme d'une barre de coulée continue à la sortie de la machine de coulée continue et de la valeur que l'on obtient pour la vitesse de coulée (V_G) respectivement à l'état de régime permanent de l'installation de coulée-laminage, et de préférence également en fonction des épaisseurs mesurées (H1, H2) du produit sous la forme d'une barre de coulée continue (200) à la sortie de la première et de la deuxième cage de laminoir (122_1, 122_2) du train de laminoir (120) à partir du modèle de planification de coulée (126).
  10. Procédé selon la revendication 9, caractérisé en ce qu'on calcule et on prédéfinit le couple de rotation de consigne (Mi_soll) pour l'entraînement (114_i) dudit au moins un rouleau entraîné de guidage de barre de coulée continue (113_i) en fonction de la valeur que l'on obtient pour l'épaisseur (H0) du produit sous la forme d'une barre de coulée continue (20) à la sortie du guidage de barre de coulée continue (112) et de la valeur que l'on obtient pour la vitesse de coulée (V_G), respectivement à l'état de régime permanent de l'installation de coulée-laminage, et également en fonction de la valeur que l'on obtient pour le couple cumulé de sortie de la barre de coulée continue (M_G) et des allures de l'épaisseur des lingotières (f(x)) et de la température (g(x)) à l'intérieur et à la sortie du guidage de barre de coulée continue, à partir du modèle d'entraînement des machines de coulée continue (115).
  11. Procédé selon l'une quelconque des revendications précédentes, caractérisé en ce qu'on prédéfinit les couples de rotation de consigne (Mi_soll) pour les entraînements (114_i) des rouleaux de guidage de barres de coulée continue, à l'état réparti de manière appropriée sur la longueur (x) du guidage de barre de coulée continue (112), à partir du modèle d'entraînement des machines de coulée continue (115), en prenant en compte la géométrie des machines de coulée continue, le couple cumulé de la sortie de la barre de coulée continue (M_G), ainsi que la répartition de l'épaisseur de la lingotière de coulée continue (f(x)) et la température (g(x)) sur la longueur du guidage de barre de coulée continue (112).
  12. Procédé selon la revendication 11, caractérisé en ce qu'on prédéfinit les couples de rotation de consigne (Mi_de soll) à partir du modèle d'entraînement des machines de coulée continue (115) d'une manière telle qu'ils s'élèvent dans une première zone s'étendant entre la sortie des lingotières et la position effective (X_S) de la pointe du cône liquide (160) du produit sous la forme d'une barre de coulée continue (200) au sein du guidage de barre de coulée continue (112) et qu'ils restent constants dans une deuxième zone s'étendant entre la pointe du cône liquide (160) et la longueur métallurgique (L_G) de la machine de coulée continue (110)
  13. Procédé selon l'une quelconque des revendications précédentes, caractérisé en ce qu'on procède à une modification de la valeur pour la vitesse de rotation de consigne (n1_soll) de la première cage de laminoir (122_1) et/ou des valeurs de consigne (Mi_soll, Mn_soll) pour les couples de rotation des entraînements (114_i) des rouleaux de guidage de barres de coulée continue et/ou des entraînements (124_n) des cylindres des cages de laminoir (122_n) via des rampes temporelles.
EP14186114.6A 2014-09-24 2014-09-24 Procédé destinés à couler et laminer un produit en coulée continue Active EP3000539B1 (fr)

Priority Applications (7)

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EP14186114.6A EP3000539B1 (fr) 2014-09-24 2014-09-24 Procédé destinés à couler et laminer un produit en coulée continue
PCT/EP2015/067910 WO2016045847A1 (fr) 2014-09-24 2015-08-04 Procédé et installation de laminage de coulée pour couler et laminer un produit de coulée continue
US15/514,249 US10821502B2 (en) 2014-09-24 2015-08-04 Method and casting/rolling system for casting and rolling a continuous strand material
KR1020177009253A KR101924003B1 (ko) 2014-09-24 2015-08-04 연속 스트랜드 금속을 주조 및 압연하기 위한 방법 및 그 주조/압연 시스템
RU2017113766A RU2683671C2 (ru) 2014-09-24 2015-08-04 Способ и литейно-прокатная установка для непрерывной разливки и прокатки непрерывной заготовки
CN201580060186.2A CN107073534B (zh) 2014-09-24 2015-08-04 用于铸造和轧制无头连铸坯材的方法和铸造轧制设备
JP2017516164A JP6413014B2 (ja) 2014-09-24 2015-08-04 無端のストランド材の鋳造及び圧延をするための方法及び鋳造圧延設備

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EP14186114.6A EP3000539B1 (fr) 2014-09-24 2014-09-24 Procédé destinés à couler et laminer un produit en coulée continue

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JP (1) JP6413014B2 (fr)
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CN (1) CN107073534B (fr)
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EP3318342A1 (fr) * 2016-11-07 2018-05-09 Primetals Technologies Austria GmbH Procédé de fonctionnement d'un ensemble de coulée-laminage
CN109622630B (zh) * 2019-01-03 2020-04-24 包头铝业有限公司 耐热铝合金杆材轧制工艺参数在线调节方法
DE102021203848A1 (de) 2021-04-19 2022-10-20 Sms Group Gmbh Verbesserung der Produktivität einer Gießwalzanlage durch Einstellung einer optimalen Gießdicke
US20220402041A1 (en) * 2021-06-16 2022-12-22 General Electric Company Methods and apparatus for recoating parameter control
DE102022208499A1 (de) 2022-08-16 2024-02-22 Sms Group Gmbh Verfahren und Computerprogrammprodukt zum Betreiben einer Gieß-Walzanlage

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US10821502B2 (en) 2020-11-03
EP3000539A1 (fr) 2016-03-30
RU2017113766A3 (fr) 2018-10-24
JP6413014B2 (ja) 2018-10-24
CN107073534B (zh) 2019-07-02
CN107073534A (zh) 2017-08-18
WO2016045847A1 (fr) 2016-03-31
KR101924003B1 (ko) 2018-11-30
JP2017529245A (ja) 2017-10-05
RU2683671C2 (ru) 2019-04-01
KR20170048569A (ko) 2017-05-08
US20170266704A1 (en) 2017-09-21
RU2017113766A (ru) 2018-10-24

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