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WO2016020310A1 - Régulateur de traction différentielle à configuration optimisée - Google Patents

Régulateur de traction différentielle à configuration optimisée Download PDF

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Publication number
WO2016020310A1
WO2016020310A1 PCT/EP2015/067781 EP2015067781W WO2016020310A1 WO 2016020310 A1 WO2016020310 A1 WO 2016020310A1 EP 2015067781 W EP2015067781 W EP 2015067781W WO 2016020310 A1 WO2016020310 A1 WO 2016020310A1
Authority
WO
WIPO (PCT)
Prior art keywords
rolling
metal strip
proportional
control device
stand
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.)
Ceased
Application number
PCT/EP2015/067781
Other languages
German (de)
English (en)
Inventor
Anastasiia GALKINA
Bernhard Weisshaar
Kurt Schlacher
Agnes BAUMGÄRTNER
Andreas Lorenz
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
Primetals Technologies Germany GmbH
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.)
Filing date
Publication date
Application filed by Primetals Technologies Germany GmbH filed Critical Primetals Technologies Germany GmbH
Publication of WO2016020310A1 publication Critical patent/WO2016020310A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

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
    • B21B37/48—Tension control; Compression control
    • 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
    • B21B2261/00—Product parameters
    • B21B2261/02—Transverse dimensions
    • B21B2261/04—Thickness, gauge
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B2261/00—Product parameters
    • B21B2261/02—Transverse dimensions
    • B21B2261/06—Width
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B2261/00—Product parameters
    • B21B2261/20—Temperature
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B2265/00—Forming parameters
    • B21B2265/02—Tension
    • B21B2265/06—Interstand tension
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B2265/00—Forming parameters
    • B21B2265/14—Reduction rate
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B2275/00—Mill drive parameters
    • B21B2275/02—Speed
    • B21B2275/06—Product speed
    • 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
    • B21B37/58—Roll-force control; Roll-gap control
    • B21B37/62—Roll-force control; Roll-gap control by control of a hydraulic adjusting device
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B38/00—Methods or devices for measuring, detecting or monitoring specially adapted for metal-rolling mills, e.g. position detection, inspection of the product
    • B21B38/06—Methods or devices for measuring, detecting or monitoring specially adapted for metal-rolling mills, e.g. position detection, inspection of the product for measuring tension or compression

Definitions

  • the present invention is based on an operating method for a rolling train in which a metal strip is rolled,
  • ski lift at least detects a moment acting on the drive side and an operating side on the ski looper
  • a control device receives the torques received by the loop lifter, determines therefrom the train that prevails on the drive side and on the operator side in the metal band, and determines the differential train therefrom by subtraction,
  • control device implements a Differenzzugregler, by means of which the control device using the Differenzzuges a control command for a
  • the present invention further relates to a Compu ⁇ terprogramm comprising machine code that is processable by a control device for a rolling mill, wherein the execution of the machine code effected by the control means that the control means operates the rolling mill according ei ⁇ nem such an operating procedure ,
  • the present invention further is directed to a STEU ⁇ er worn for a rolling mill, wherein the control means is programmed with such a computer program, so that the control means operates the rolling mill according to one of ⁇ like operating procedures.
  • the present invention is further based on a rolling mill for rolling a metal strip, - wherein the rolling mill comprises a plurality of rolling stands between which is in each case a loop lifter to the metal band attached ⁇ represents,
  • the respective ski-lift mechanism detects at least one moment acting on the respective ski-lift lifter on the drive side and on the operating side
  • the rolling train has a control device, wel ⁇ che, based on a respective one of the loop lifter, the rolling mill operates in each case according to such an operating method.
  • the metal strip When rolling metal strip in a hot strip finishing mill, the metal strip is to be guided as far as possible with the highest running stability ⁇ formality and with optimum flatness result by the individual roll stands of the rolling train.
  • ⁇ sem constant over the bandwidth longitudinal stress distribution is particularly desirable. It is expected that the metal strip running in this state of tension, the slightest Be ⁇ movements in the transverse direction. With sudden and also with slow transverse movements of the metal strip, it can easily come into contact with the side guides. Such contact damages the band edges. In extreme cases, the metal band can even jump over the side guides and make an emergency stop of the rolling mill in a so-called high walker required.
  • loop lifters are provided between the rolling stands which, in conjunction with the adjustment of the rolling speed of the upstream and downstream rolling stands, effect adjustment and maintenance of a desired tensile force in the metal strip.
  • the loop lifters usually have a sensor system for detecting the total traction. This measurement does not allow conclusions about a transverse distribution of the tension over the bandwidth.
  • the helmsman of the rolling mill has the possibility to intervene manually with each metal strip to correct the pivoting of the rolling stand, from which the belt foot runs out. However, this procedure does not always lead to satisfactory results.
  • Modern ski jacks each have their own sensors for measuring the pulling force on both lever arms - ie both on the drive side and on the operating side.
  • the result is, in addition to the total traction force, also the possibility of measuring a difference traction force or of determining the traction forces on the drive side and the operating side.
  • a differential tension controller can adjust the tension distribution to a desired value by engaging the roller pivot of the upstream rolling stand.
  • the object of the present invention is to provide opportunities to adjust the difference train quickly, easily and reliably.
  • an operating method of the type mentioned at the outset is configured by
  • Differenzzugregler determines the control command such that the control command has at least a proportional proportion that is proportional to Differenzzug, and
  • the suspensory effect will erge- the control command above the Minimalgeschwin ⁇ speed independently from the transport speed of the Me ⁇ tallbandes is achieved.
  • the average thickness of the metal strip running out of the front roll stand is constant.
  • the average thickness can vary, be it within a certain metal strip, be it from metal strip to metal strip.
  • the controller determines the proportio ⁇ nalanteil such that the ratio is proportional to the thickness of the medium-sized running out of the front roll stand metal strip.
  • the width of the running out of the front Walzge ⁇ Scotland metal strip is constant.
  • the width may vary, in particular from metal strip to metal strip.
  • the control device determines the product portion alan part such that the ratio is inversely propor tional to the width ⁇ ⁇ leak out of the front roll stand of the metal strip. By doing so, it is sufficient that the resulting effect of the positioning command is Depends on the width of the metal strip running out of the front roll stand.
  • the controller determines the propor- nalanteil further such that the ratio is inversely proportional to the per ⁇ elastic modulus of the running out of the front Walzge ⁇ Jost metal strip.
  • the elastic modulus of the control device is specified as such.
  • the control device automatically determines the modulus of elasticity on the basis of a history of the metal strip prior to rolling in the front rolling stand.
  • the history of the metal strip may include in particular its composition and temperature prior to rolling in a first mill stand of the rolling mill, Stichab66 in the front mill upstream rolling stands of the rolling mill and transport times of the metal strip from Walzge ⁇ stand to rolling stand of the rolling mill to the front mill stand.
  • Possibilities for implementing such a determination are readily available to the person skilled in the art.
  • the skilled person knows models by means of which the temperature development, the phase transformation and the structure development of the metal strip can be modeled during the passage of the rolling train. Using such Mo ⁇ delle also the modulus of elasticity of the metal strip can be ermit ⁇ telt.
  • the Differenzzugregler any time determines the proportional component so that the ratio of the proportional component to the tension difference above the Minimalge ⁇ speed is inversely proportional to Transportgeschwindig- ness. In a preferred embodiment of the operating method according to the invention, however, it is provided
  • initial section and "main section” have been chosen in this context to emphasize that the initial section is a section of the metal strip lying in front of the main section. A broad meaning content does not apply to the two terms.
  • This approach helps to avoid noise that might occur during a hard, abrupt changeover.
  • the term "intermediate portion" was chosen in this context lent to verdeut- order that the intermediate portion is a portion of Me ⁇ tallbandes the initial ⁇ section between and lying the main section. Any further semantic content does not come to the about to. The period which the change occurs, may be determined as needed.
  • the control command has only the proportional component.
  • the differential ⁇ zugregler is designed as a pure proportional controller.
  • the differential-sequence controller preferably determines the setting command such that the positioning command has an integral component in addition to the proportional component.
  • the Differenzzugregler is designed as a proportional-integral controller. Analogous to the calculation of the proportional component so that at the beginning of (ie, during the rolling of the initial portion of the metal strip in the front roll stand), the ratio of Pro ⁇ portion alan partly to tension difference has a constant value ⁇ , it is possible
  • the Differenzzugregler determined during the rolling out of a ⁇ direct portion of the metal strip in the front roll stand the control command such that the control command in addition to the proportional component comprises an integral component on ⁇ , and
  • the stability of the operation of the rolling train can be increased.
  • the terms "front From ⁇ cut” and “behind the” were chosen in this context to indicate that the front section is a lying in front of the rear section section of the metal strip. A broad meaning content does not apply to the two terms.
  • the control means preferably increases during the rolling of a between the front and rear portions of the
  • the period during which the integral component increases may be determined as needed. You should normally but at least five times a cycle time Betra ⁇ gen with which the Differenzzugregler works.
  • the time zone should continue to be a maximum of several seconds, for example, a maximum of 3 to 10 seconds.
  • control device for a rolling train with the features of claim 13.
  • the control device is programmed with a computer program according to the invention, so that the control device operates the rolling train in accordance with an operating method according to the invention.
  • the object is further achieved by a rolling mill with the features of claim 14.
  • According to the invention operates the control device, based on a respective one of
  • Ski jacks the rolling train each according to an operating method according to the invention.
  • 5 shows a front rolling stand
  • 6 shows a flow chart
  • a metal strip 1 is to be rolled in a rolling train.
  • the metal strip 1 may be, for example, a steel strip, an aluminum strip, a copper strip, a brass strip or a band made of another metal.
  • the rolling train has a plurality of rolling stands 2.
  • the number of Walzgerüs ⁇ th 2 is usually between four and eight, for example ⁇ at five, six or seven.
  • the rolling stands 2 only their work rolls 3 are shown in FIG. 1 (and also in the other figures).
  • the rolling stands 2 have, in addition to the work rolls 3, further rolls, in particular in quarto screeds in addition to the work rolls 3 backup rolls and in the case of sexto scaffolds 3 backup rolls and intermediate rolls in addition to the work rolls.
  • the work rolls 3, the intermediate rolls and / or the backup rolls may be axially displaceable. However, this is not mandatory.
  • the metal strip 1 is conveyed in a transport direction x through the rolling train. Between each two seen in the transport direction x immediately consecutive rolling stands 2 each a loop lifter 4 is arranged, which is employed on the metal band ⁇ 1.
  • each loop lifter 4 and the respectively upstream rolling stand 2 is generally adopted for each loop lifter 4 and the respectively upstream rolling stand 2. Subsequently, the ⁇ therefore in connection with FIGS 2 and 3, only a single pair of rolling stands 2 and the intermediate Schiin- considered lifter 4. However, the corresponding statements apply to each such group of two in the transport direction x of the metal strip 1 immediately successive stands 2 and the interposed Schiingenheber 4. Furthermore, below, based on the respective Schiingenheber 4, each upstream rolling stand 2 referred to as a front mill stand and this the reference numeral 2a is used. In an analogous manner, referred to the jewei ⁇ ligen loop lifter 4, the respective downstream rolling stand 2 is referred to as a rear rolling mill and this is the reference ⁇ character 2b used.
  • the work rolls 3 of the roll stands 2 are driven in accordance with FIG 4 ⁇ means of electric drives 5 via shafts. 6
  • the drives 5 are arranged laterally of the rolling stands 2. This page is commonly referred to as the drive side.
  • the opposite side is commonly referred to as operator side. This terminology is well below USAGE ⁇ det.
  • the respective loop lifter 4 has (at least) two sensors 7.
  • a torque M 1, M 2 acting on the drive side and on the control side of the ski lifter 4 are detected.
  • the respective detected moment M1, M2 is characteristic of the train Z1, Z2, which on the drive side and on the service side prevails between the front and the rear roll stand 2a, 2b in the metal strip 1 in each case.
  • the detected moments Ml, M2 are fed to a control device 8 of the rolling train.
  • the rolling train may comprise a speedometer 9, by means of which a
  • Transport speed v is detected, with which the metal ⁇ tape 1 expires from the front roll stand 2a.
  • the detected transport speed v is likewise fed to the control device 8.
  • the transport speed v of the control device 8 can be known elsewhere.
  • the control device 8 usually controls the entire rolling train. It is therefore only once for all rolling stands 2 the rolling mill available. However, a parameterization of the control device 8 with respect to the individual rolling stands 2 may be different from rolling stand 2 to rolling stand 2.
  • the control device 8 is generally designed as a software programmable control device 8. It is therefore programmed with a computer program 10.
  • the computer program 10 determines the mode of action of the control device 8.
  • the computer program 10 comprises machine code 11 which can be processed by the control device 8.
  • the processing of the machine code 11 causes the control device 8 to operate the rolling train in accordance with an operating method which is explained in more detail below in connection with FIG. 4 and the other figures.
  • the control device 8 accepts the detected moments M1, M2 and possibly also the transport speed v.
  • the control device 8 determines from the detected moments Ml, M2 the train ZI, Z2 prevailing on the drive side and on the operator side respectively in the metal band 1.
  • the conversion of the detected moments M1, M2 into the corresponding trains Z1, Z2 is generally known to experts.
  • the control device 8 determines the difference ⁇ between the drive-soapy train ZI and the service-side train Z2.
  • the control device 8 implements a differential tension controller 12 for the rolling stand 2 a that is pre-assigned to the respective loop lifter 4 (see FIG. 2).
  • a differential tension controller 12 for the rolling stand 2 a that is pre-assigned to the respective loop lifter 4 (see FIG. 2).
  • the difference ⁇ zugreglers 12 determines the control device 8 using the differential train ⁇ a control command S for a
  • the differential train controller 12 has at least one proportional behavior. It can additionally have an integral behavior. Subsequently, the operation of the Differenzzugreglers 12 will be explained in more detail in conjunction with the further steps of FIG. First, the controller 8 determines a gain K in a step S4.
  • the gain K is given in accordance with the relationship
  • the scaling factor is between 10 and
  • actuators 12 usually hydraulic cylinder units 12
  • control device 8 limits the amplification factor K to a maximum value Kmax.
  • Step S6 determines the control device 8 by multiplying the train difference ⁇ with the gain K a proportional component SP of a control command S.
  • the Proportio ⁇ nalanteil SP is therefore proportional to the differential train ⁇ .
  • a ratio of Proportionalan- part SP to the tension difference ⁇ above a Minimalgeschwin ⁇ speed is further inversely proportional to the transport speed v.
  • the control device 8 controls the front rolling stand 2a in a step S7.
  • Adjusting command S causes a corresponding pivoting movement for the front rolling mill 2a.
  • Transport speed v with the metal strip 1 expires from the respective front roll stand 2a, usually measured ⁇ technically detected.
  • the capture can be direct or indirect.
  • An indirect detection for example, the Erfas ⁇ solution of the circumferential speed of the work rolls 3 of the front roll stand 2a, together with consideration of the advance.
  • the transport speed v as such, its nominal value can also be used.
  • width b of the metal strip 1 and / or the thickness d of the metal strip 1 are different approaches mög ⁇ Lich.
  • width b and / or the thickness d are measured.
  • these values of the control device 8 are otherwise known, for example via setpoint specifications or a pass schedule.
  • the distance LI of the rolling stands 2a, 2b from each other and the distance L2 of the adjusting elements 8 from each other during operation are not variable. They only have to be preset once to the control device 8, for example as part of a parameterization during commissioning.
  • the elastic modulus E is preferably determined automatically by the control device 8 on the basis of a history of the metal strip 1 before rolling in the front rolling stand 2a.
  • the controller 8 may be known as part of the pass schedule, which temperature and which together ⁇ men acid (be it in terms of chemical composition, be it in the sense of phase proportions) having the metal strip 1 prior to the rolling of the rolling mill in the first roll stand. 2
  • the control device 8 in the context of a model-based calculation using the known from the stitch plan Stichab66 in the rolling stands 2 to inclusive the front roll stand 2a and the transport time of the metal strip 1 from the roll stand 2 to roll stand 2 of the rolling mill up to the front roll stand 2a the modulus of elasticity E ermit ⁇ stuffs.
  • steps S 1 to S 15 are provided in addition to steps S 1 to S 7 in FIG.
  • step S the control device 8 checks whether an initial section 14 (see FIG. 7) of the metal strip 1 is rolled in the front rolling stand 2 a. If so, the controller 8 proceeds to step S12. In step S12, the controller 8 sets a transition factor ⁇ 1 to an initial value 0. Otherwise, the controller 8 proceeds to step S13. In step S13, the control device 8 increases the transition factor ⁇ 1 by a step size ⁇ . Can ⁇ the step size, for example, a value from 0.01 to 0.20 aufwei ⁇ sen. In step S14, the control device 8 limits the transition factor ⁇ 1 to the value 1.
  • K0 is a fixed value which is below the maximum value Kmax.
  • the gain factor K in this case is independent of the transport speed v. (Does so if the transition factor SSL reached its final value 1) during Wal ⁇ zen one on the top portion 14 following Hauptab ⁇ section 15 (see FIG 7 again) of the metal strip 1, however, is as above be ⁇ written in connection with Figure 3.
  • the Amplification factor K determined such that the ratio of the proportional component SP to difference train ⁇ above the minimum speed is indirectly proportional to the transport speed v.
  • the procedure ⁇ example of FIG 6 the result that the Ver ⁇ ratio of the proportional component SP to the tension difference ⁇ changes during rolling ei ⁇ nes intermediate portion 16 in the front roll stand 2a all ⁇ gradually from the fixed value KO to a value of is directly proportional to the transport speed v.
  • the intermediate portion 16 is located - see FIG 7 - between the on ⁇ catching portion 14 and the main portion 15 of the metal band 1.
  • the steps S13 and S14 degenerate, that means that, immediately upon first going through steps S13 and S14, the transition factor SSL assumes the value 1.
  • the gradual increase to the value of 1 is preferable.
  • another mögli ⁇ che embodiment of the procedure according to the invention will be explained in conjunction with FIG. This embodiment can be combined as required with the Ausgestal ⁇ tion of Figures 6 and 7. However, it is independent of this feasible.
  • steps S21 and S22 are present in addition to steps S1 to S7 of FIG.
  • step S21 ermit ⁇ S telt the Differenzzugregler 12 in addition to the proportional term SP of the control command an integral component of the control command SI S.
  • step S22 the Differenzzugregler 12 adds the proportional term SP and the integral component to SI
  • Positioning command S A further possible embodiment of the procedure according to the invention will be explained below in conjunction with FIGS. 9 and 10. This embodiment can be combined as required with the embodiment of Figures 6 and 7. However, it can be implemented independently of this.
  • step S23 the controller 8 checks whether a front portion 17 (see FIG. 10) of the metal strip 1 is rolled in the front mill stand 2a. If so, the controller 8 proceeds to step S24.
  • step S24 the control device 8 sets a further transition factor ⁇ 2 to an initial value 0.
  • step S25 the control device 8 increases the further transition factor ⁇ 2 by a further increment ⁇ 2.
  • the further step size ⁇ 2 may for example have a value between 0.01 and 0.20.
  • step S26 the controller 8 limits the further transition factor ⁇ 2 to the value 1.
  • step S27 replaces the step S22 of FIG. 8.
  • step S27 the controller 8 determines the setting command S according to the relationship
  • the procedure of FIG 9 has the consequence that during the rolling of the front portion 17 - when the step S24 is executed - the Differenzzugregler 12 determines the control command S such that the control command S in addition to the proportional component SP has no integral component SI.
  • the procedure of FIG 9 means that the control device 8 gradually increases the integral component SI during the rolling of a middle section 19 in the front rolling stand 2 a.
  • the middle section 19 lies - see FIG. 10 - between the front section 17 and the rear section 18 of the metal strip 1.
  • the present invention relates to fol ⁇ constricting facts:
  • a metal strip 1 is rolled.
  • the rolling ⁇ road has a front and a rear roll stand 2a, 2b, between which a loop lifter 4 is positioned against the metal strip.
  • the loop lifter 4 detects at least one torque Ml, M2 acting on the drive side and on the operator side of the ski lifter 4.
  • a control device 8 receives the captured by the loop lifter 4 moments Ml, M2, determines from the drive side and the operating side in the Me ⁇ tallband 1 dominant train ZI, Z2 and from Renz formation by the differential tension difference ⁇ .
  • the control device 8 implements a differential tension controller 12, by means of which the control device 8 uses the difference train ⁇ to determine a positioning command S for a pivoting movement for the front rolling stand 2a and controls the front rolling stand 2a accordingly.
  • the Differenzzugregler 12 determines the control command S such that the control command S has at least a proportional component SP, which is proportional to the Diffe ⁇ renzzug ⁇ .
  • a ratio of the proportional component SP to Differential tension ⁇ is above a minimum speed in ⁇ directly proportional to a transport speed v at which the metal strip 1 expires from the front roll stand 2a.
  • the present invention has many advantages. Insbeson ⁇ particular, a simple interpretation of Differenzzugreg ⁇ toddlers 12.

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

Abstract

L'invention concerne un régulateur de traction différentielle à configuration optimisée. Une bande métallique (1) est laminée dans un train de laminage. Le train de laminage comporte une cage de laminoir avant et une cage de laminoir arrière (2a, 2b), entre lesquelles un releveur de boucle (4) est posé contre la bande métallique (1). Le releveur de boucle (4) détecte au moins un couple (M1, M2) agissant côté entraînement et côté commande sur le releveur de boucle (4). Un dispositif de commande (8) réceptionne les couples (M1, M2) détectés par le releveur de boucle (4), détermine à partir de ces derniers la traction (Z1, Z2) régnant côté entraînement et côté commande dans la bande métallique (1) et, par l'obtention de la différence, la traction différentielle (δZ). Le dispositif de commande (8) implémente un régulateur de traction différentielle (12), au moyen duquel le dispositif de commande (8) détermine, en utilisant la traction différentielle (δZ), une instruction de réglage (S) pour un mouvement de pivotement pour la cage de laminoir avant (2a) et pilote de manière conforme la cage de laminoir avant (2a). Le régulateur de traction différentielle (12) détermine l'instruction de réglage (S) de telle manière que l'instruction de réglage (S) comporte au moins une partie proportionnelle (SP) proportionnelle à la traction différentielle (δZ). Un rapport entre la partie proportionnelle (SP) et la traction différentielle (δZ) est, au-dessus d'une vitesse minimale, indirectement proportionnel à une vitesse de transport (v), à laquelle la bande métallique (1) sort de la cage de laminoir avant (2a).
PCT/EP2015/067781 2014-08-05 2015-08-03 Régulateur de traction différentielle à configuration optimisée Ceased WO2016020310A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102014215396.4A DE102014215396A1 (de) 2014-08-05 2014-08-05 Differenzzugregelung mit optimierter Reglerauslegung
DE102014215396.4 2014-08-05

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WO2016020310A1 true WO2016020310A1 (fr) 2016-02-11

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CN105750337A (zh) * 2016-04-25 2016-07-13 山东钢铁股份有限公司 一种bd轧机压下系统的调试方法
CN114761149A (zh) * 2019-11-25 2022-07-15 N·乌姆拉夫 轧制线

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EP3544751B1 (fr) * 2016-11-24 2020-12-30 Primetals Technologies Germany GmbH Réglage de position de bande consistant à positionner des guides latéraux sur la bande métallique, avec limitation de force
CN117259446B (zh) * 2023-09-15 2025-03-07 常熟市龙腾特种钢有限公司 活套控制方法、系统、电子设备及存储介质

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