WO2011006851A1 - Réglage des boucles et de la traction d’une bande - Google Patents

Réglage des boucles et de la traction d’une bande Download PDF

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Publication number
WO2011006851A1
WO2011006851A1 PCT/EP2010/059941 EP2010059941W WO2011006851A1 WO 2011006851 A1 WO2011006851 A1 WO 2011006851A1 EP 2010059941 W EP2010059941 W EP 2010059941W WO 2011006851 A1 WO2011006851 A1 WO 2011006851A1
Authority
WO
WIPO (PCT)
Prior art keywords
tension
loop
controller
determined
control method
Prior art date
Application number
PCT/EP2010/059941
Other languages
German (de)
English (en)
Inventor
Wilfried Tautz
Dietrich Wohld
Original Assignee
Siemens Aktiengesellschaft
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 Siemens Aktiengesellschaft filed Critical Siemens Aktiengesellschaft
Priority to PL10732933T priority Critical patent/PL2454033T3/pl
Priority to CN201080032005.2A priority patent/CN102470410B/zh
Priority to EP10732933.6A priority patent/EP2454033B1/fr
Publication of WO2011006851A1 publication Critical patent/WO2011006851A1/fr

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
    • B21B37/50—Tension control; Compression control by looper control
    • 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
    • B21B2275/00—Mill drive parameters
    • B21B2275/02—Speed
    • 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
    • B21B2275/04—Roll 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
    • B21B37/48—Tension control; Compression control
    • B21B37/52—Tension control; Compression control by drive motor control

Definitions

  • the present invention relates to a control method for controlling a Istzuges, which prevails in a clamped between two stands rolling on a debit train and an actual position of an arranged between the two rolling stands, employed on the band ski lifter to a SoIl position.
  • the present invention further relates to a computer program which has machine code which can be processed directly by a control device and whose execution by the control device causes the control device to carry out such a control method.
  • the present invention further relates to a control device which is designed such that it carries out such a control method during operation.
  • a strip tension is usually set in the individual strip sections (that is to say in the sections of the strip which are located between each two successive strip rolling mills of the rolling train). For technological reasons - for example, to maintain the thickness and width constancy of the strip - the strip tension should be kept as constant as possible.
  • a speed setpoint is usually determined, which acts on one of the two roll stands delimiting the strip section.
  • a ski lifter is set, which is arranged between the two successive rolling stands and is set against the belt.
  • the ski jacks are often used in the prior art. Hiring the Ski jacks take place in the prior art by means of an electric drive (more rarely) or a hydraulic cylinder unit (more frequently).
  • the loop lifter By means of the loop lifter not only the tension in the band is measured.
  • an amount of band that is buffered in the respective band section (loop) is set via the deflection of the loop lifter.
  • the loop lifter can be brought into its raised position only after the threading of the tape, in which he deflects the tape.
  • the ski jack must be lowered before unthreading the tape again.
  • an adjustment of the loop lifter directly affects the length of the band located in the band section and thus indirectly the strip tension.
  • the loop control is therefore coupled to the tension control.
  • Both output signals act both on the rolling speed of the upstream or downstream roll stand and on the position of the loop lifter.
  • Each of the four gene is set via a corresponding gain factor.
  • control method having the features of claim 1.
  • Advantageous embodiments of the control method according to the invention are the subject of the dependent claims 2 to 8.
  • the object is further achieved by a computer program having the features of claim 9. Furthermore, the object is achieved by a control device having the features of claim 11.
  • Integral part comprises, in that, based on the integral component, a first additional speed setpoint is determined for at least one of the two rolling stands,
  • a first desired shift speed component for the ski lift is determined
  • train compensation signal and "loop compensation signal” have been chosen because they express which controller they originate from, what deviation they are to counteract, and to be able to distinguish them verbally. A more important meaning is not the word choice.
  • the derivative the length of the band clamped between the two stands according to the position of the loop lifter.
  • both the integral component of the Buchausgangssignals and the loop output signal are delayed in time.
  • the control method can therefore be simplified by subtracting the instantaneous integral component from a modified loop compensation signal, delaying the resulting difference, and adding the delayed difference to the train output signal as the result of determining the resulting desired adjustment rate, wherein the modified loop compensation signal is obtained by scaling the Loop compensation signal is determined with a derivation taking into account value.
  • the characteristic value for the actual tension is measured directly. In general, however, the value is either not measurable or at least not easy to measure. In the context of the present invention, it is therefore preferable for the value characteristic of the actual tension to be determined indirectly on the basis of measured variables by means of a tape tension observer. Tape tension observers as such are known to those skilled in the art.
  • the tape tension observer will continue to be supplied with the resulting target adjustment speed, that is, the sum of the target adjustment speed components. Due to this circumstance, there is a positive feedback within the control. The positive feedback can lead to instability of the tension controller. Therefore, it is preferably provided that a substitute time constant for the tape tension observer is determined dynamically on the basis of variables which are characteristic of the stability of the tension controller, and the tape tension observer determines the characteristic value for the actual tension, taking into account the equivalent time constant. te determined. Alternatively or additionally, it can be provided that a control gain for the tension controller is determined dynamically on the basis of the variables characteristic of the stability of the tension controller, and the tension controller determines the tension compensation signal taking into account the control gain.
  • a feedforward control is connected in parallel with the tape tension observer.
  • the torque controller determines an additional target displacement speed component, which likewise enters into the resulting setpoint speed as a summand.
  • the computer program according to the invention is characterized in that the execution of its machine code by a control device causes the control device to carry out a control method according to the invention.
  • the computer program can in particular be stored on a data carrier in machine-readable form. Further advantages and details will become apparent from the following description of exemplary embodiments in conjunction with the drawings.
  • 1 shows a multi-stand rolling train
  • FIG. 5 shows a possible combination of the tension control of FIG. 3 and the loop control of FIG. 4, FIG.
  • a rolling train has a plurality of rolling stands 1.
  • the rolling mill may in particular be a hot rolling mill.
  • a total of three rolling stands 1 are shown.
  • the rolling train has more than three rolling stands 1, for example five to eight rolling stands.
  • a band 2 is rolled.
  • the band 2 is usually a metal band, for example a steel band, an aluminum band or a copper band. However, it may be made of a different material, such as a non-ferrous metal or a non-metal.
  • the rolling mills 1 are driven to roll the strip 2 at a roll speed v specific to the respective rolling stand 1.
  • each ski lifter 3 has a looper roller 4, which is employed on the belt 2.
  • the belt 2 is deflected between the rolling stands 1 from a rolling line 5 (that is, the direct connecting line of the roll nips of the rolling stands 1 with each other), usually upwards.
  • band 2 is clamped. In band 2, therefore, there is a current Z.
  • the actual Z within each band section is (of course) uniform. In the individual band the actual Z trains may be the same or different from each other.
  • FIG. 2 shows a single belt section including the two rolling stands 1 delimiting the belt section 1.
  • the two rolling stands 1 are provided with the reference symbols 1 'and 1 "in FIG 2 in order to be able to differentiate them from one another in accordance with their sequence as a front rolling stand 1 'and as a rear rolling stand 1 ", the section shown in FIG. 2 is an arbitrary section.
  • a control device 8 is present.
  • the control device 8 is designed such that it performs a control method during operation, which will be explained in more detail below.
  • the control device 8 can be implemented by circuitry. As a rule, however, the control device 8 is designed as a software programmable control device 8 in accordance with the representation of FIG. In this case, the control device 8 is programmed with a computer program 9.
  • the computer program 9 has machine code 10.
  • the machine code 10 can be processed directly by the control device 8.
  • the processing of the machine code 10 by the control device 8 causes the control device 8 carries out the steps of the control method explained below.
  • the computer program 9 can be supplied to the control device 8 in any manner. For example, it is possible to supply the computer program 9 to the control device 8 via a computer-computer connection, for example a LAN or the Internet.
  • the control device 8 is supplied with a desired train Z *.
  • the control device 8 is supplied with a characteristic Z 'characteristic of the actual Z train.
  • an actual position ⁇ of the loop lifter 3 and a set position ⁇ * of the loop lifter 3 are fed to the control device 8.
  • the actual tension Z and the desired tension Z * and the actual position ⁇ are to be regulated to the desired position ⁇ *.
  • the control device 8 determines a resulting additional speed setpoint value ⁇ v * for the rolling stand 1' arranged upstream of the ski lifter 3.
  • the resulting additional speed setpoint ⁇ v * is output to a speed controller 12 for the upstream rolling stand 1 '.
  • the resulting additional speed setpoint ⁇ v * could be determined for the roll stand 1 "downstream of the ski lifter 3 and output to a speed control 13 of this rolling stand 1". This is indicated by dashed lines in FIG. A division into both rolling stands 1 ', 1 "can be made.
  • control device 8 uses the quantities Z *, Z ', ⁇ , ⁇ * to determine a resulting setpoint speed ⁇ * for the loop lifter 3.
  • the resulting setpoint speed ⁇ * is output to an adjusting unit 14, by means of which the position of the loop lifter 3 is set ,
  • the adjustment unit 14 can operate electrically or - preferably - hydraulically.
  • the control device 8 comprises a tension regulator 15.
  • the tension regulator 15 and its mode of action are explained in more detail below in conjunction with FIG.
  • the control device 8 further comprises a loop controller 16.
  • the loop controller 16 and its mode of action will be explained in more detail below in conjunction with FIG.
  • the entire control device 8 will be explained again in connection with FIG 5 below.
  • the tension regulator 15 is supplied with a value Z '* characteristic of the desired tension Z * and the value Z' characteristic of the actual tension Z.
  • a setpoint determination device 8 ' may be present, to which the desired train Z * and further variables are supplied.
  • the further variables can include, for example, the actual position ⁇ of the loop lifter 3, the distances of the loop lifter 3 from the upstream and downstream rolling stand 1 ', 1 "and further geometry parameters, so that the setpoint determination device 8' is able to reference it Size of the distances of the looper roller 4 of the rolling stands 1 ', 1 "and the height of
  • the setpoint determination device 8 ' is supplied with quantities which describe the strip 2, for example its thickness, its width and its elasticity mode. If these quantities are known, the value Z '* characteristic of the desired tension Z * can be determined on the basis of simple geometric calculations. The characteristic value Z '* corresponds in this case a desired force, the tape 2 on the
  • At least the desired train Z * and the actual position ⁇ are variables. Both other sizes may alternatively be variables or parameters.
  • the difference between variables and parameters is that variables can vary dynamically in the operation of the control device 8, while parameters are set once during the commissioning of the control device 8 and are then kept constant.
  • the setpoint determination device 8 ' can be part of the control device 8. Alternatively, it may be arranged outside the control device 8. In the latter case, the control device 8 is supplied with the corresponding characteristic value Z '* instead of the reference pull Z *.
  • the value Z 'characteristic of the actual pull Z can be measured alternatively or otherwise determined. This will be discussed later.
  • the tension controller 15 comprises an integrator 17.
  • the train compensation signal ZA therefore comprises an integral component IA.
  • the tension controller 15 comprises a branch 18, via which a proportional component PA of the train compensation signal ZA is output.
  • An integration gain kl of the integrator 17 may be a constant. However, it is preferably a variable which increases, inter alia, with increasing control deviation (
  • a first additional speed setpoint value ⁇ vl * for the upstream rolling stand 1 ' is determined.
  • the first additional speed setpoint ⁇ vl * enters the resulting additional speed setpoint value ⁇ v * as one of two summands.
  • the integral component IA is fed to a delay element 19, in which the integral component IA is delayed in time.
  • the time-delayed integral component is referred to below as a delayed integral component IA 'to distinguish it from the instantaneous integral component IA.
  • the time-delayed integral component IA ' is subtracted in a node point 20 from the train compensation signal ZA.
  • a first Sollverstellge- speed ratio ⁇ l * is determined for the ski looper 3.
  • the first Sollverstell effetive stress ⁇ l * goes as one of several summands in the resulting Sollver- Stell effet ⁇ * a.
  • the desired position .phi. * And the actual position .phi. are supplied to the loop regulator 16 as shown in FIG.
  • the loop controller 16 may be formed as a P-controller. It determines a loop compensation signal SA on the basis of the position ⁇ * and the actual position ⁇ .
  • the loop compensation signal SA is supplied to a delay element 21 (among others). In the delay element 21, the loop compensation signal SA is delayed in time, thus determining a delayed loop compensation signal SA '.
  • the delayed loop compensation signal SA ' corresponds to a second desired adjustment speed component ⁇ 2 * for the loop lifter 3.
  • the second desired adjustment speed component ⁇ 2 * also enters into the determination of the resulting target adjustment speed ⁇ * as a summand.
  • a second additional speed setpoint value ⁇ v2 * for the upstream rolling stand 1 ' is furthermore determined on the basis of the loop compensation signal SA.
  • the second additional speed setpoint ⁇ v2 * is the second summand, which enters the resulting speed setpoint ⁇ v *.
  • a divider member 22 is present.
  • the difference between the train output signal ZA and the delayed integral component IA ' is divided by a value kL.
  • the value kL corresponds to the derivation of the length of the band 2, which is between the two the band section limiting rolling stands 1 ', 1 ", according to the position ⁇ of the loop lifter. 3
  • the activation of the adjusting unit 14 delayed relative to the output of the resulting additional speed setpoint value ⁇ v * ensures that the actual position ⁇ of the loop lifter 3 is not tracked until a corresponding adaptation of the between the rolling stands 1 ', 1 by the resulting speed setpoint value ⁇ v *
  • the integral component IA is not permanently output to the loop lifter 3, but rather from the loop lifter 3 in accordance with the time delay by the delay member 19 the upstream roll stand 1 '(optionally alternatively or additionally to the downstream roll stand 1 ") is shifted. Due to the time delay of the delay element 19, the time delay is compensated, which has the regulated path as such.
  • FIG. 5 shows the total interconnection of the control device 8.
  • the embodiment according to FIG. 5 is functionally completely equivalent to the procedure explained above in connection with FIGS. 3 and 4. Only the order of individual addition, subtraction and delay measures is slightly modified.
  • the instantaneous integral component IA is subtracted from the modified loop compensation signal SA ", the difference thus determined is delayed and the delayed difference to
  • the value Z 'characteristic of the actual Z train In principle, it is possible to measure the value Z 'characteristic of the actual Z train. In many cases, however, the measurement is technically complicated or even impossible. For this reason, according to FIGS. 3 and 5, a tape tension observer 25 is present.
  • the measured variables may in particular comprise an adjusting moment MV applied by the ski lifter 3.
  • the tape tension observer 25 can be supplied with quantities which are characteristic of the adjustment speed ⁇ of the ski lifter 3 and a self-moment ME caused by the ski lifter 3.
  • a measured actual value can be used or the resulting desired adjustment speed ⁇ * can be used.
  • the intrinsic moment ME is essentially caused by the weight force of the components of the loop lifter 3 acting on the adjusting unit 14.
  • the intrinsic moment ME can alternatively be constant or be a function of the actual position ⁇ of the loop lifter 3.
  • the Bandzugbeobachter 25 may be constructed as the load observer, in FIG. 3 of the patent application "Load control of a hydraulic cylinder unit with load observer" of the applicant, character of the applicant 200907995, filed with the European Patent Office on 03 July 2009, official file reference 09 164 521 , shown in detail and in conjunction with This figure is described. Further details can therefore be dispensed with.
  • control method according to the invention gives very good results. By the embodiments described below in connection with Figures 6 to 8, the control method is still further improved.
  • the embodiments described below in conjunction with FIGS. 6 to 8 can alternatively be implemented individually or in combination with one another.
  • a torque controller 26 is present in addition to the tension controller 15 and the sling regulator 16.
  • the torque controller 26 is supplied with the characteristic Z '*, the characteristic torque ME and the adjusting torque MV characteristic of the reference train Z *.
  • the torque controller 26 uses the quantities Z '*, ME, MV supplied to it to determine an additional target displacement speed component ⁇ 3 *.
  • the additional target displacement speed component ⁇ 3 * also enters the resulting target displacement speed ⁇ * as a summand.
  • the torque controller 26 may be designed in particular as a P controller or as a PD controller. It causes a stabilization of the behavior of the entire control device
  • a start-up controller 27 can be present.
  • the approach controller 27 is, if it is present, active only in an initial phase.
  • the approach controller 27 is activated as soon as it is detected that the band 2 has been threaded into the roll stand 1 "downstream of the loop lifter 3.
  • the start-up regulator 27 is switched off when the loop lifter roll 4 contacts the band 2.
  • the switch-off can be performed as a function of
  • the difference between the actual pull Z and the desired pull Z * (or the corresponding characteristic values Z '*, Z') is made by the approach controller 27, which ensures that the loop lifter 3 quickly reaches the strip 2 from the lowered position (below the rolling line 5) is hired.
  • the control device 8 can also have a position controller 28 according to FIG.
  • the position Ler 28 is used in particular when the ski jig 3 is to be kept in a fixed position when threading or unthreading of the belt 2 below the rolling line 5. It is active as an alternative to the tension controller 15 and the loop controller 16 (and possibly also the torque controller 26 and / or the approach controller 27).
  • the switchover takes place - preferably in a sliding manner - as a function of an input and output detection.
  • the position controller 28 is preferably constructed as described in the patent application "control device for a hydraulic cylinder unit" of the applicant, character of
  • FIG. 7 furthermore shows that the control device 8 can have an adaptation device 29.
  • the adaptation device 29 is supplied with quantities which are characteristic of the stability of the tension regulator 15.
  • the adaptation device 29 determines, for example, a replacement time constant T for the tape tension observer 25. If this is the case, the adaptation device 29 outputs the equivalent time constant T to the tape tension observer 25. In this case, the tension detector 25 determines the value Z 'characteristic of the actual tension Z, taking into account the equivalent time constant T.
  • the adaptation device 29 can determine a control gain k for the tension controller 15 on the basis of the variables supplied to it and output it to the tension controller 15.
  • the tension controller 15 determines the train compensation signal ZA in this case, taking into account the control gain k transmitted to it.
  • the characteristic of the stability of the Buchreglers 15 sizes can be determined as needed. For example, the actual position ⁇ of the loop lifter 3 can be used. Regardless of which sizes the adaptation device
  • the equivalent time constant T and / or the control gain k is determined by means 29, the determination is carried out dynamically, that is to say during operation of the control device 8.
  • the equivalent time constant T and the control gain k are variables, not parameters.
  • a feedforward control 30 can furthermore be connected in parallel with the tape tension observer 25.
  • the characteristic Z 'characteristic of the actual pull Z can be determined with greater dynamics.
  • changes in the value Z 'characteristic of the actual pull Z which arise as a result of changes in the actual position ⁇ of the loop lifter 3, immediately appear in the characteristic value Z' without the tape tension observer 25 having to settle first.
  • the pre-control 30 is fed at least the actual position ⁇ of the loop lifter 3 as a variable.
  • the present invention has many advantages.
  • the control method according to the invention is fast and stable. Furthermore, a simple retrofitting of existing control devices is given. Furthermore, the control method according to the invention has superior control results.
  • a change in the actual position ⁇ of the loop lifter 3 has virtually no effect on the actual pull Z. This is particularly important when lowering the loop lifter 3 before unthreading the strip 2.
  • deviations of the actual pull Z from the set pull Z * are corrected very quickly. Nevertheless, only a very small excitation of natural vibrations occurs.
  • Another advantage of the control method according to the invention is that no measured value for the adjustment speed ⁇ of the loop lifter 3 is required. There are also no slow, creeping transients, but there is a quick settling.
  • the above description is only for explanation of the present invention. The scope of the present invention, however, is intended to be determined solely by the appended claims.

Abstract

L’invention concerne un régulateur de traction (15) auquel sont fournies une valeur caractéristique (Z'*) de la traction théorique (Z*) souhaitée d’une bande (2) tendue entre deux cages de laminoir (1’, 1") et la valeur effective (Z’) correspondante. Le régulateur de traction (15) détermine à l’aide des valeurs caractéristiques (Z’*, Z’) qui lui sont fournies un signal de compensation de traction (ZA) qui comprend une fraction intégrale (IA). A l’aide la fraction intégrale (IA), on détermine une première valeur théorique d’ajout de vitesse (δv1*) pour au moins une des deux cages de laminoir (1', 1"). La fraction intégrale (IA) est retardée dans le temps et soustraite par ce retard du signal de compensation de traction (ZA). A l’aide de la différence ainsi obtenue, on détermine une première fraction de vitesse de déplacement théorique (ωl*) pour le releveur de boucles (3). Une position effective (φ) d’un releveur de boucles (3) placé sur la bande (2) et disposé entre les deux cages de laminoir (1’, 1") et la position théorique (φ*) correspondante sont fournies à un régulateur de boucles (16). Le régulateur de boucle (16) détermine, à l’aide de la position théorique (φ*) et de la position effective (φ), un signal de compensation de boucles (SA). En retardant le signal de compensation de boucles (SA), on détermine une seconde fraction de vitesse de déplacement cible (ω2*) pour le releveur de boucles (3). A l’aide du signal de compensation de boucles (SA), on détermine une seconde valeur théorique d’ajout de vitesse (δv2*) pour au moins une des deux cages de laminoir (1’, 1"). La somme (δv*) de la première et de la seconde valeur théorique d’ajout de vitesse (δv1*, δv2*) est fournie à un dispositif de régulation (12) de la vitesse de rotation d’au moins une des deux cages de laminoir (1’, 1"). Une vitesse de déplacement théorique obtenue (ω*), dans laquelle interviennent sous forme de somme la première et la seconde fraction de vitesse de déplacement théorique (ω1*, ω2*), est fournie à une unité de déplacement (14) qui permet d’ajuster la position du releveur de boucles (3).
PCT/EP2010/059941 2009-07-15 2010-07-09 Réglage des boucles et de la traction d’une bande WO2011006851A1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
PL10732933T PL2454033T3 (pl) 2009-07-15 2010-07-09 Regulacja naciągu taśmy i pętli
CN201080032005.2A CN102470410B (zh) 2009-07-15 2010-07-09 带张力-及活套调节装置
EP10732933.6A EP2454033B1 (fr) 2009-07-15 2010-07-09 Réglage du feuillard et des n'uds

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP09165549A EP2277639A1 (fr) 2009-07-15 2009-07-15 Réglage du feuillard et des nýuds
EP09165549.8 2009-07-15

Publications (1)

Publication Number Publication Date
WO2011006851A1 true WO2011006851A1 (fr) 2011-01-20

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PCT/EP2010/059941 WO2011006851A1 (fr) 2009-07-15 2010-07-09 Réglage des boucles et de la traction d’une bande

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EP (2) EP2277639A1 (fr)
CN (1) CN102470410B (fr)
PL (1) PL2454033T3 (fr)
WO (1) WO2011006851A1 (fr)

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DE102015101580B3 (de) * 2015-02-04 2016-06-02 Hydro Aluminium Rolled Products Gmbh Verfahren und Vorrichtung zum Prägewalzen eines Bandes
RU2646305C1 (ru) * 2016-06-16 2018-03-02 Евгений Евгеньевич Диденко Способ регулирования натяжения прокатываемой полосы в первом межклетевом промежутке чистовой группы стана горячей прокатки

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CN103230947B (zh) * 2013-04-27 2015-12-02 内蒙古包钢钢联股份有限公司 判断高线生产线滚动导卫损坏的方法
CN104307884B (zh) * 2014-09-03 2016-04-27 山西太钢不锈钢股份有限公司 热连轧硅钢尾部活套落套控制方法
CN105425848B (zh) * 2015-12-30 2017-07-11 太原理工大学 轧机压下系统机电液耦合振动在线主动自抑制控制装置
DE102017200560A1 (de) 2017-01-16 2018-07-19 Sms Group Gmbh Verfahren für eine Zugregelung

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EP2454033A1 (fr) 2012-05-23
EP2277639A1 (fr) 2011-01-26
CN102470410A (zh) 2012-05-23

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