EP2268427B1 - Procédé d'exploitation pour un train de laminoir à froid avec dynamique améliorée - Google Patents

Procédé d'exploitation pour un train de laminoir à froid avec dynamique améliorée Download PDF

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Publication number
EP2268427B1
EP2268427B1 EP09718646A EP09718646A EP2268427B1 EP 2268427 B1 EP2268427 B1 EP 2268427B1 EP 09718646 A EP09718646 A EP 09718646A EP 09718646 A EP09718646 A EP 09718646A EP 2268427 B1 EP2268427 B1 EP 2268427B1
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EP
European Patent Office
Prior art keywords
rolling
cold
stand
rolling mill
thickness
Prior art date
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Active
Application number
EP09718646A
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German (de)
English (en)
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EP2268427A1 (fr
Inventor
Hans-Joachim Felkl
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Siemens AG
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Siemens AG
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Priority to PL09718646T priority Critical patent/PL2268427T3/pl
Publication of EP2268427A1 publication Critical patent/EP2268427A1/fr
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Publication of EP2268427B1 publication Critical patent/EP2268427B1/fr
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B37/00—Control devices or methods specially adapted for metal-rolling mills or the work produced thereby
    • B21B37/16—Control of thickness, width, diameter or other transverse dimensions
    • B21B37/165—Control of thickness, width, diameter or other transverse dimensions responsive mainly to the measured thickness of the product
    • 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
    • B21B37/46—Roll speed or drive motor 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
    • B21B37/48—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
    • B21B37/58—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
    • 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
    • B21B37/66—Roll eccentricity compensation systems

Definitions

  • the present invention further relates to a computer program, the computer program comprising machine code which is directly executable by a control device for a multi-stand cold rolling mill.
  • the present invention relates to a data carrier on which a computer program of the type described above is stored in machine-readable form.
  • the present invention relates to a control device for a multi-stand cold rolling mill, wherein the control device is programmed with such a computer program.
  • the strip thickness is usually measured behind the first and behind the last mill stand of the cold rolling mill. Tape thickness errors that occur in the intervening stands of the cold rolling mill are not noticed until after the thickness measurement behind the last mill stand of the cold rolling mill.
  • the deadtime-dependent outlet-side monitor control of the cold rolling mill can only partially compensate for these errors.
  • mode C in which the last rolling stand of the cold rolling mill is operated as a skin pass mill with constant rolling force, the compensation of the thickness errors designed as difficult.
  • the monitor control system acts on the last roll-gap-controlled rolling stand, ie on the penultimate roll stand of the cold rolling mill.
  • the dead time thus consists of the transport time, which requires the band from the penultimate roll stand of the rolling mill to the thickness gauge. As a result, only a very small control dynamics can be achieved.
  • the last stand of the multi-stand cold rolling mill is operated with a constant rolling force.
  • the employment of the last rolling stand is force-controlled. Due to the rolling force control, the last roll stand responds to thickness errors of the strip by giving way accordingly. The band thickness errors run through the last mill stand of the cold rolling line thus undamped.
  • the outlet side monitor control, d. H. If necessary, the thickness gauge downstream of the cold rolling mill changes the stock removal of the penultimate roll stand of the cold rolling mill. Due to the large dead time between the control intervention on the penultimate rolling stand of the cold rolling mill and the subsequent measurement by means of the thickness gauge, however, only low-frequency disturbances can be adequately compensated.
  • the object of the present invention is to provide opportunities by means of which thickness errors in the rolled strip can be adjusted with higher dynamics.
  • the roll gap control device is additionally supplied with an eccentricity compensation value as an additional setpoint.
  • eccentricity compensation value as an additional setpoint.
  • the output from the force control device manipulated variable of the roll gap control device is supplied as an additional setpoint.
  • the force control device of the roll gap control device is superimposed, so that as a result the last rolling stand of the cold rolling train is operated directly controlled by force.
  • the further thickness measuring device it is possible to design the further thickness measuring device in a conventional manner. Alternatively, it is possible for the further thickness measuring device to determine the further actual thickness of the strip indirectly on the basis of a speed of the strip detected before the penultimate roll stand of the cold rolling train, a known corresponding actual thickness of the strip and a detected speed of the strip between the penultimate and last rolling stands of the cold rolling line ,
  • the task is further solved programmatically by a computer program having the features of claim 10.
  • the computer program comprises machine code provided by a controller for a multi-stand cold rolling mill is directly executable.
  • the execution of the machine code by the control means causes the control means to realize the above-mentioned control means, to drive the above-mentioned detecting and measuring means and to drive the above-mentioned adjusting members.
  • the cold rolling mill is operated by the control device according to an operating method of the type described above.
  • the object is further achieved by a data carrier on which a computer program of the type described last is stored in machine-readable form.
  • the object is achieved by a control device for a multi-stand cold rolling mill, wherein the control device is programmed with a computer program of the type described above.
  • the control device is able to implement the corresponding control devices, to control the corresponding detection and measuring devices and to control the corresponding control elements, so that as a result the cold rolling train is operated by the control device according to an operating method of the type described above.
  • the multi-stand cold rolling mill has several rolling stands, which are passed through in succession by a strip during operation of the cold rolling mill.
  • the last rolling stand of the cold rolling mill is assigned a rolling force detecting device by means of which an actual rolling force of the last rolling stand can be detected.
  • the last rolling stand of the cold rolling mill is a thickness measuring device, by means of which an actual thickness of the belt is detected, immediately downstream.
  • the cold rolling line has a control device of the type described above, which with the rolling stands of the cold rolling mill, the rolling force detecting device and the thickness measuring device is technically connected, so that the cold rolling mill are operated by the control device according to an operating method of the type described above.
  • a cold rolling mill has a plurality of rolling mills 1 to 4, which are passed through in succession by a strip 5 during operation of the cold rolling mill.
  • the cold rolling mill has four such rolling stands 1 to 4.
  • the number of stands 1 to 4 could alternatively be larger or smaller.
  • the cold rolling mill further has a control device 6.
  • the control device 6 is connected to the rolling stands 1 to 4 of the cold rolling mill data technically.
  • the control device 6 operates the cold rolling mill according to one of the operating methods which will be described below in connection with FIGS FIGS. 2 to 4 be explained in more detail. This is under the FIGS. 2 to 4 In particular, the operation of the last rolling stand 4 and the penultimate rolling stand 3 of the cold rolling mill.
  • the remaining rolling stands 1, 2 of the cold rolling mill can be operated in a manner known per se.
  • the control device 6 is generally designed as a programmable control device 6, which executes a computer program 7 during operation.
  • the computer program 7 in this case comprises machine code 8, which directly from the control device 6 is executable.
  • the execution of the machine code 8 causes in this case that the control device 6 operates the cold rolling mill according to an operating method according to the invention.
  • the computer program 7 may already have been deposited in the control device 6 during the production of the control device 6. Alternatively, it is possible to supply the computer program 7 to the control device 6 via a computer-computer connection.
  • the calculator-computer connection is in FIG. 1 not shown here. It can be designed, for example, as a connection to a LAN or to the Internet. Again alternatively, it is possible to store the computer program 7 on a data carrier 9 in machine-readable form and to supply the computer program 7 to the control device 6 via the data carrier 9.
  • the design of the data carrier 9 is hereby arbitrary nature. For example, it is possible that the data carrier 9 is designed as a USB memory stick or as a memory card. Is shown in FIG. 1 an embodiment of the data carrier 9 as a CD-ROM.
  • the thickness of the last rolling mill 4 of the cold rolling mill is immediately followed by a thickness measuring device 10.
  • a thickness measuring device 10 By means of the thickness measuring device 10, an actual thickness d is detected, which has the band 5 at the location of the thickness measuring device 10.
  • the thickness measuring device 10 supplies the actual thickness d detected by it to a thickness control device 11.
  • the thickness control device 11 acts on the last stand 4 of the cold rolling mill.
  • the thickness control device 11 determines a desired value s * for an adjusting device 12.
  • a rolling gap of the last rolling stand 4 of the cold rolling train can be set.
  • the determined setpoint value s * is supplied to the thickness control device 11 of a roll gap control device 13 as the setpoint value s *.
  • the roll gap control device 13 is further supplied as an actual value s a travel s of the adjusting device 12.
  • the roll gap control device 13 determines, based on the quantities s *, s supplied to it, a setting command Q for adjusting the adjusting device 12. It outputs the adjusting command Q to the adjusting device 12.
  • the adjusting device 12 is designed as a hydraulic cylinder device. However, this is not mandatory. The only factor is that the adjustment 12 is adjustable under load.
  • the thickness control device 11 determines a further manipulated variable ⁇ v *, which acts on the roller speed of the last rolling stand 4 of the cold rolling train.
  • a rolling force detecting device 14 is assigned to the last rolling stand 4 of the cold rolling mill.
  • an actual rolling force F of the last rolling stand 4 of the cold rolling train is detected and supplied to a force control device 15.
  • the rolling force control device 15 determines based on the supplied actual rolling force F and a Sollwalzkraft F * a manipulated variable ⁇ s1 * and outputs this manipulated variable ⁇ s1 * from.
  • the manipulated variable ⁇ s1 * output by the force control device 15 is fed to the roll gap control device 13 as an additional setpoint value ⁇ s1 *.
  • the roll gap control device 13 is further supplied as a further additional setpoint ⁇ s2 * an eccentricity compensation value ⁇ s2 *.
  • This embodiment is preferred, but not mandatory.
  • the thickness control device 11 dynamically to the last stand 4 of the cold rolling mill acts. This is in contrast to the prior art, in which although the thickness measuring device 10 is also located behind the last rolling stand 4 of the cold rolling mill, the thickness control device 11, however, acts on the penultimate rolling stand 3 of the cold rolling mill.
  • the last rolling mill 4 of the cold rolling mill another thickness gauge 16 is disposed directly upstream.
  • a further actual thickness d ' is detected, which has the band 5 at the location of the further thickness measuring device 16.
  • the further actual thickness d ' is determined according to FIG. 2 also fed to the thickness control device 11.
  • the thickness control device 11 is therefore able to take into account the further actual thickness d 'when determining the setpoint value s *.
  • the control variable ⁇ e Q acting on the last roll stand 4 of the cold rolling train is thus varied on the basis of the detected further actual thickness d '.
  • the manipulated variable s * which is varied on the basis of the further actual thickness d ', thus acts on the roll gap control device 13.
  • a strip tension Z is detected, which prevails between the last rolling stand 4 and the penultimate rolling stand 3 of the cold rolling line in the band 5.
  • the strip tension Z and a desired tension Z * are fed to a tension control device 17 which controls the tension Z on the desired tension Z *.
  • the tension control device 17 can in this case act in particular on the roller speed of the penultimate rolling stand 3 of the cold rolling train. Alternatively, it is possible as in FIG. 2 indicated by dashed lines that the tension control device 17 acts on the roller speed of the last rolling stand 4 of the cold rolling train.
  • the thickness measuring device 10 is arranged downstream of the last rolling stand 4 of the cold rolling mill.
  • the thickness measuring device 10 detects the actual thickness d of the strip 5 behind the last roll stand 4 of the cold rolling train and supplies the actual thickness d of the thickness control device 11.
  • the thickness control device 11 acts on the last stand 4 of the cold rolling mill.
  • the thickness control device 11 the setpoint s * for the adjusting device 12 and leads him to the roll gap control 13 as a setpoint s *.
  • the roll gap control device 13 takes the setpoint value s * and the corresponding actual value s and determines in the same way as described above the control command Q for adjusting the adjusting device 12.
  • the rolling force detecting device 14 is present, which detects the actual rolling force F of the last rolling stand 4 and the force control device 15 supplies.
  • the force control device 15 determines a manipulated variable ⁇ v '* based on the actual rolling force F supplied to it and the nominal rolling force F * also supplied to it and outputs this manipulated variable ⁇ v' *.
  • the output from the force control device 15 manipulated variable ⁇ v '* acts on the roller speed of the penultimate roll stand 3 of the cold rolling mill.
  • the thickness control device 11 determines a further manipulated variable ⁇ v *, which acts on the roller speed of the last rolling stand 4 of the cold rolling train.
  • ⁇ v * a further manipulated variable
  • the strip tension Z between the last roll stand 4 and the penultimate roll stand 3 of the cold rolling mill is detected and fed to the tension control device 17.
  • the tension control device 17 controls the strip tension Z on the desired train Z *.
  • the tension control device 17 acts on the roll gap control device 13.
  • FIG. 3 Various advantageous embodiments are possible.
  • it is - analogous to FIG. 2 -
  • it is possible to feed the roll gap control device 13 as an additional setpoint value ⁇ s2 * the eccentricity compensation value ⁇ s2 *.
  • the further actual thickness d 'of the band 5 is detected by means of the further thickness measuring device 16 and fed to the thickness control device 11.
  • the thickness control device 11 can vary a manipulated variable s * acting on the last rolling stand 4 of the cold rolling train on the basis of the detected further actual thickness d 'of the belt 5.
  • the thickness measuring device 10 the last rolling stand 4 of the cold rolling train immediately downstream. Furthermore, the thickness control device 11 is still present, to which the actual thickness d of the strip 5 is supplied. The thickness control device 11 acts according to the embodiment FIG. 4 continue on the last mill stand 4 of the cold rolling mill.
  • the rolling force detecting device 14 is present, which detects the actual rolling force F of the last rolling stand 4 and the force control device 15 supplies.
  • the force control device 15 determines (as before) based on their supplied actual rolling force F and a Sollwalzkraft F * a manipulated variable ⁇ s1 * and outputs the manipulated variable ⁇ s1 *.
  • the manipulated variable ⁇ s1 * acts - analogous to the embodiment according to FIG. 2 - on the roll gap .regel Singer 13.
  • the further actual thickness d 'of the belt 5 is detected by means of the further thickness measuring device 16 immediately preceding the last rolling stand 4 of the cold rolling train and fed to a further thickness control device 11' as the actual value d '.
  • the further thickness control device 11 ' in this case acts on the penultimate rolling stand 3 of the cold rolling mill.
  • the further thickness control device 11 requires not only the further actual thickness d ', but also a desired thickness d' * for proper regulation.
  • the desired thickness d '* is determined by means of a setpoint determination device 18.
  • Speed detection devices 19, 20 are provided for this purpose. By means of the speed detection devices 19, 20, speeds v ', v are detected, with which the belt 5 enters the last rolling stand 4 of the cold rolling train and runs out of the last rolling stand 4 of the cold rolling train.
  • the detected velocities v ', v and a final thickness d *, which the band 5 should have behind the last mill stand 4 of the cold rolling mill, are fed to the nominal value determination device 18.
  • the setpoint determination device 18 determines the desired thickness d '* as a function of the quantities d *, d, v', v supplied to it, and supplies them to the thickness control device 11 as the setpoint value d '*.
  • the speeds v, v ' can be determined in various ways.
  • the last mill stand 4 according to FIG. 1 an S-roller set 21 is arranged downstream and the peripheral speed of the rollers of the S-roller set 21 is detected.
  • This speed v corresponds very well with the outlet side speed of the belt 5 behind the last rolling stand 4.
  • other approaches are possible.
  • the roll gap control device 13 can be supplied with the additionality setpoint value ⁇ s2 * as additional setpoint value ⁇ s2 *.
  • the setpoint determination device 18 can take into account the actual thickness d when determining the setpoint thickness d '*.
  • the thickness measuring device 10 by means of which the actual thickness d of the strip 5 is determined behind the last rolling stand 4, is preferably designed as a conventional thickness measuring device.
  • the further thickness gauge 16, by means of of which the actual thickness d 'of the strip 5 between the next to last and the last roll stand 3, 4 of the cold rolling train is determined, may be formed in a conventional manner. The following will be in connection with FIG. 5 however, an alternative embodiment of this thickness measuring device 16 is explained.
  • the speed v 'of the belt 5 between the penultimate and the last rolling stand 3, 4 of the cold rolling mill is detected.
  • the peripheral speed of the tension measuring roller 22 can be detected.
  • the peripheral speed of the rollers of the penultimate rolling stand 3 of the cold rolling mill can be detected, and the speed v 'of the belt 5 between the penultimate and last rolling stands 3, 4 of the cold rolling mill can be determined by considering the lead.
  • this may alternatively be a point between the penultimate and the third last roll stand 3, 2 or a further from the penultimate roll stand 3 - a speed v0 of the strip 5 and the existing at this point Band thickness d0 detected and the further thickness gauge 16 supplied.
  • an input thickness d0 of the strip 5 can be detected on the input side of the cold rolling train by means of an additional thickness measuring device 23.
  • an additional thickness measuring device 23 on the input side of the cold rolling mill - for example by detecting the peripheral speed of rollers of an upstream S-roller set 24 - a corresponding input-side belt speed v0 can be detected.
  • the respective locations of the belt 4 for which the entrance thicknesses d0 were detected are traced through the cold rolling mill.
  • d0 is the initial thickness d0 of the strip 5, with which the point of the strip 5 currently emerging from the penultimate rolling stand 3 was detected by the additional thickness measuring device 23.
  • the various control devices 11, 11 ', 13, 15 and 17 and also the setpoint determination device 18 are usually software-implemented. They are therefore parts of the computer program 7.
  • the execution of the computer program 7 by the control device 6 therefore causes the control device 6, the corresponding control devices 11, 11 ', 13, 15 and 17 and the setpoint determination device 18 realized.
  • the control device 6 controls the detection devices 14, 19, 20 and the control elements 12 (and others).
  • the cold rolling mill is operated by the controller 6 in accordance with one of the operation methods explained above.
  • the control device 6 is of course also connected to the mentioned devices 10, 12, 14, 16, 19, 20, etc., in terms of data technology.
  • the present invention has many advantages.
  • the contradiction held in the prior art “constant rolling force control on the last roll stand 4 for the skin pass mill” and “utilization of the setting effect of the setting of the last rolling stand 4 for the damping of thickness defects” is achieved according to the invention. It is both the requirements of a skin pass mill accounted for and the requirements for the dimensional accuracy of the manufactured band 5. Nevertheless, compared to the prior art not previously considered possible dynamics achieved.

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

Claims (13)

  1. Procédé pour faire fonctionner un train de laminoir à froid à plusieurs cages pour le laminage d'un feuillard ( 5 ),
    - dans lequel, au moyen d'un dispositif ( 14 ) de détection de la force de laminage, on détecte une force ( F ) réelle de laminage d'une dernière cage ( 4 ) de laminoir du train de laminoir à froid et on l'envoie à un dispositif ( 15 ) de réglage de force,
    - dans lequel le dispositif ( 15 ) de réglage de force détermine, au moyen de la force ( F ) de laminage réelle qui lui est envoyée et d'une force ( F* ) de laminage de consigne, au moins une grandeur ( δs1*, δv'* ) de réglage et l'émet,
    - dans lequel on détecte une épaisseur ( d ) réelle du feuillard ( 5 ), au moyen d'un dispositif ( 10 ) de mesure d'épaisseur monté immédiatement en aval de la dernière cage du train de laminoir à froid, et on l'envoie à un dispositif ( 11 ) de réglage d'épaisseur,
    - dans lequel le dispositif de réglage d'épaisseur agit sur la dernière cage ( 4 ) du train de laminoir à froid,
    caractérisé
    - en ce que l'on détermine une autre épaisseur ( d' ) réelle du laminoir ( 5 ) au moyen d'un autre dispositif ( 16 ) de mesure d'épaisseur monté directement en amont de la dernière cage ( 4 ) du train de laminoir à froid,
    - en ce que, au moyen de dispositifs ( 19, 20 ) de détection de vitesse, on détecte des vitesses ( v', v ) auxquelles le feuillard ( 5 ) entre dans la dernière cage ( 4 ) du train de laminoir à froid et sort de la dernière cage ( 4 ) du train de laminoir à froid,
    - en ce que l'on envoie à un dispositif ( 18 ) de détermination de valeur de consigne les vitesses ( v', v ) détectées et une épaisseur ( d' ) d'extrémité déterminée à l'avance que le feuillard ( 5 ) doit avoir derrière la dernière cage ( 4 ) du train de laminoir à froid,
    - en ce que le dispositif ( 18 ) de détermination de valeur de consigne détermine une épaisseur ( d'* ) de consigne en fonction des grandeurs ( v', v, d*, d ) qui lui sont envoyées et
    - en ce que l'on envoie l'épaisseur ( d'* ) de consigne comme valeur ( d'* ) de consigne et l'autre épaisseur ( d' ) réelle comme valeur ( d' ) réelle à un autre dispositif ( 11' ) de réglage d'épaisseur agissant sur l'avant-dernière cage ( 3 ) du train de laminoir à froid.
  2. Procédé suivant la revendication 1,
    caractérisé
    - en ce que le dispositif ( 11 ) de réglage d'épaisseur détermine une valeur ( s* ) de consigne pour un dispositif ( 12 ) de déplacement pour l'emprise de la dernière cage ( 4 ) du train de laminoir à froid et l'envoie comme valeur ( s* ) de consigne à un dispositif (13) de réglage d'emprise,
    - en ce que l'on envoie, en outre, comme valeur ( s ) réelle un trajet ( s ) de déplacement du dispositif ( 12 ) de déplacement au dispositif ( 13 ) de réglage d'emprise,
    - en ce que le dispositif ( 13 ) de réglage d'emprise détermine, au moyen des grandeurs ( s, s*, δs1*, δs2* ) qui lui sont envoyées, une instruction ( Q ) de déplacement pour le déplacement du dispositif ( 12 ) de déplacement et l'envoie au dispositif ( 12 ) de déplacement et
    - en ce que le dispositif ( 11 ) de réglage d'épaisseur détermine une grandeur (δv* ) de réglage de la vitesse des cylindres de la dernière cage ( 4) du train de laminoir à froid et l'envoie à la dernière cage ( 4 ) du train de laminoir à froid.
  3. Procédé suivant la revendication 2,
    caractérisé en ce que l'on envoie, en outre, une valeur ( δs2* ) de compensation d'excentricité comme valeur ( δs2* ) de consigne supplémentaire au dispositif ( 13 ) de réglage d'emprise.
  4. Procédé suivant la revendication 2 ou 3,
    caractérisé en ce que l'on envoie, comme valeur ( δs1* ) de consigne supplémentaire, au dispositif ( 13 ) de réglage d'emprise, la grandeur ( δs1* ) de déplacement émise par le dispositif ( 15 ) de réglage de force.
  5. Procédé suivant la revendication 4,
    caractérisé en ce que l'on détecte une traction ( Z ) de feuillard régnant dans le feuillard ( 5 ) entre la dernière cage ( 4 ) et l'avant-dernière cage ( 3 ) du train de laminoir à froid et on la règle à une traction ( Z* ) de consigne au moyen d'un dispositif ( 17 ) de réglage de traction.
  6. Procédé suivant la revendication 5,
    caractérisé en ce que le dispositif ( 17 ) de réglage de traction agit sur la vitesse de laminage de la dernière ou de l'avant-dernière cage ( 3, 4 ) du train de laminoir à froid ou sur le dispositif ( 13 ) de réglage d'emprise.
  7. Procédé suivant la revendication 2 ou 3,
    caractérisé
    - en ce que la grandeur ( δv'* ) de réglage émise par le dispositif ( 15 ) de réglage de force agit sur la vitesse des cylindres de l'avant-dernière cage ( 3 ) du train de laminoir à froid,
    - en ce que l'on détecte une traction ( Z ) de feuillard régnant dans le feuillard ( 5 ) entre la dernière cage ( 4 ) et l'avant-dernière cage ( 3 ) du train de laminoir à froid et on la règle à une traction ( Z* ) de consigne au moyen d'un dispositif ( 17 ) de réglage de traction,
    - en ce que le dispositif ( 17 ) de réglage de traction agit sur le dispositif ( 13 ) de réglage d'emprise.
  8. Procédé suivant l'une des revendications précédentes,
    caractérisé
    - en ce que l'on envoie aussi l'épaisseur ( d ) réelle au dispositif ( 18 ) de détermination de valeur de consigne et
    - en ce que le dispositif ( 18 ) de détermination de valeur de consigne tient compte de l'épaisseur ( d ) réelle lors de la détermination de l'épaisseur ( d'* ) de consigne.
  9. Procédé suivant l'une des revendications précédentes, caractérisé en ce que l'autre dispositif ( 16 ) de mesure d'épaisseur détermine l'autre épaisseur ( d' ) réelle du feuillard ( 5 ) indirectement au moyen d'une vitesse ( v0 ) du feuillard ( 5 ) détectée avant l'avant-dernière cage ( 3 ) du train de laminoir à froid d'une épaisseur ( d0 ) réelle correspondante connue du feuillard (5) et d'une vitesse ( v' ) détectée du feuillard ( 5 ) entre l'avant-dernière et la dernière cage ( 3, 4 ) du train de laminoir à froid.
  10. Programme informatique, le programme informatique comprenant un code ( 8 ) machine, qui peut être exécuté directement par un dispositif ( 6 ) de commande d'un train de laminoir à froid à plusieurs cages, dans lequel l'exécution du code ( 8 ) machine par le dispositif ( 6 ) de commande fait que le dispositif ( 6 ) de commande réalise les dispositifs ( 11, 11', 13, 15, 17 ) de réglage mentionnés dans l'une des revendications précédentes, commande les dispositifs ( 10, 14, 16, 19, 20 ) de détection et de mesure mentionnés dans les revendications précédentes et commande les éléments ( 121 ) de déplacement mentionnés dans l'une des revendications précédentes, de manière à faire fonctionner finalement le train de laminoir à froid par le dispositif ( 6 ) de commande suivant un procédé selon l'une des revendications précédentes.
  11. Support de données, sur lequel est mémorisé sous une forme exploitable par une machine un programme ( 7 ) informatique suivant la revendication 10.
  12. Dispositif de commande d'un train de laminoir à froid à plusieurs cages, dans lequel le dispositif de commande est programmé par un programme ( 7 ) informatique suivant la revendication 10, de manière à être en mesure de réaliser les dispositifs ( 11, 11', 13, 15, 17 ) de réglage mentionnés dans l'une des revendications 1 à 9, à commander les dispositifs ( 10, 14, 16, 19, 20 ) de détection et de mesure mentionnés dans l'une des revendications 1 à 9 et à commander les éléments ( 12 ) de déplacement mentionnés dans l'une des revendications 1 à 9, de manière à faire fonctionner finalement le train de laminoir à froid par le dispositif de commande suivant un procédé selon l'une des revendications 1 à 9.
  13. Train de laminoir à froid à plusieurs cages,
    - dans lequel le train de laminoir à froid a plusieurs cages ( 1 à 4 ) de laminoir, dans lesquelles un feuillard ( 5 ) passe successivement, lorsque le train de laminoir à froid est en fonctionnement,
    - dans lequel, à la dernière cage ( 4 ) du train de laminoir à froid, est associé un dispositif ( 14 ) de détection de force de laminage, au moyen duquel une force ( F ) de laminage réelle de la dernière cage ( 4 ) de laminoir peut être détectée,
    - dans lequel un dispositif ( 10 ) de mesure d'épaisseur, au moyen duquel une épaisseur ( d ) réelle du feuillard ( 5 ) peut être détectée, est monté directement en aval de la dernière cage ( 4 ) de laminoir,
    - dans lequel le train de laminoir à froid a un dispositif ( 6 ) de commande suivant la revendication 12, qui est relié du point de vue de la technique des données aux cages ( 1 à 4 ) du train de laminoir à froid au dispositif ( 14 ) de détection de force de laminage et le dispositif ( 10 ) de mesure d'épaisseur, de manière à ce que le dispositif ( 6 ) de commande fasse fonctionner le train de laminoir à froid suivant un procédé selon l'une des revendications 1 à 9.
EP09718646A 2008-03-14 2009-03-09 Procédé d'exploitation pour un train de laminoir à froid avec dynamique améliorée Active EP2268427B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL09718646T PL2268427T3 (pl) 2008-03-14 2009-03-09 Sposób eksploatacji walcowni ziemnej o ulepszonej dynamice

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102008014304A DE102008014304A1 (de) 2008-03-14 2008-03-14 Betriebsverfahren für eine Kaltwalzstraße mit verbesserter Dynamik
PCT/EP2009/052697 WO2009112443A1 (fr) 2008-03-14 2009-03-09 Procédé d'exploitation pour un train de laminoir à froid avec dynamique améliorée

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EP2268427A1 EP2268427A1 (fr) 2011-01-05
EP2268427B1 true EP2268427B1 (fr) 2013-01-30

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US (1) US8516869B2 (fr)
EP (1) EP2268427B1 (fr)
CN (1) CN101970140B (fr)
BR (1) BRPI0909292A2 (fr)
DE (1) DE102008014304A1 (fr)
PL (1) PL2268427T3 (fr)
RU (1) RU2500494C2 (fr)
WO (1) WO2009112443A1 (fr)

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DE102006008574A1 (de) * 2006-02-22 2007-08-30 Siemens Ag Verfahren zur Unterdrückung des Einflusses von Walzenexzentrizitäten
DE102008014304A1 (de) 2008-03-14 2009-09-24 Siemens Aktiengesellschaft Betriebsverfahren für eine Kaltwalzstraße mit verbesserter Dynamik
CN104338754B (zh) * 2014-10-22 2016-04-13 山东钢铁股份有限公司 一种可逆式冷轧机操作台权限控制方法
JP7375947B2 (ja) * 2020-09-04 2023-11-08 東芝三菱電機産業システム株式会社 タンデム冷間圧延機の制御システム

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DE102008014304A1 (de) 2008-03-14 2009-09-24 Siemens Aktiengesellschaft Betriebsverfahren für eine Kaltwalzstraße mit verbesserter Dynamik

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Publication number Publication date
RU2500494C2 (ru) 2013-12-10
DE102008014304A1 (de) 2009-09-24
CN101970140A (zh) 2011-02-09
PL2268427T3 (pl) 2013-07-31
RU2010141991A (ru) 2012-04-20
BRPI0909292A2 (pt) 2019-09-24
CN101970140B (zh) 2013-10-30
WO2009112443A1 (fr) 2009-09-17
US8516869B2 (en) 2013-08-27
US20110011143A1 (en) 2011-01-20
EP2268427A1 (fr) 2011-01-05

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