EP3544751A1 - Régulation de la position d'une bande par positionnement à force limitée de guides latéraux au niveau de la bande métallique et correction du positionnement des cylindres - Google Patents

Régulation de la position d'une bande par positionnement à force limitée de guides latéraux au niveau de la bande métallique et correction du positionnement des cylindres

Info

Publication number
EP3544751A1
EP3544751A1 EP17816453.9A EP17816453A EP3544751A1 EP 3544751 A1 EP3544751 A1 EP 3544751A1 EP 17816453 A EP17816453 A EP 17816453A EP 3544751 A1 EP3544751 A1 EP 3544751A1
Authority
EP
European Patent Office
Prior art keywords
rolling
stand
force
strip
tape head
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.)
Granted
Application number
EP17816453.9A
Other languages
German (de)
English (en)
Other versions
EP3544751B1 (fr
Inventor
Ilhom Gafur
Mirko TUNK
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 EP3544751A1 publication Critical patent/EP3544751A1/fr
Application granted granted Critical
Publication of EP3544751B1 publication Critical patent/EP3544751B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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
    • B21B37/68—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
    • B21B39/00—Arrangements for moving, supporting, or positioning work, or controlling its movement, combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
    • B21B39/14—Guiding, positioning or aligning work
    • B21B39/16—Guiding, positioning or aligning work immediately before entering or after leaving the pass
    • B21B39/165—Guides or guide rollers for rods, bars, rounds, tubes ; Aligning guides
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B2273/00—Path parameters
    • B21B2273/12—End of product
    • B21B2273/14—Front end or leading end
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B2273/00—Path parameters
    • B21B2273/22—Aligning on rolling axis, e.g. of roll calibers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B2273/00—Path parameters
    • B21B2273/24—Web positioning

Definitions

  • the present invention is based on an operating method for a rolling train in which a metal strip is rolled,
  • the rolling train has at least one front rolling stand and one rear rolling stand arranged downstream of the front rolling stand and furthermore has side guides for the metal strip between the two rolling stands,
  • a positioning command for the front roll stand is determined by means of a strip position controller
  • the front rolling stand is acted upon by the band position controller according to the determined control command.
  • the present invention is further based on a computer program comprising machine code executable by a rolling mill controller, wherein the processing of the machine code by the controller causes the controller to operate the mill train according to such an operating method.
  • the present invention is further based on a control device for a rolling train, wherein the control device is programmed with such a computer program, such that the controller operates the mill train according to such an operating method.
  • the present invention is further based on a rolling line for rolling a metal strip, which has a tape head,
  • the rolling train has at least one front rolling stand and one rear rolling stand arranged downstream of the front rolling stand and furthermore has side guides for the metal strip between the two rolling stands,
  • Such an operating method, the corresponding computer program, the control device and the rolling train are known for example from WO 2006/119 984 AI.
  • WO 2006/119 984 Al it is known to roll a slab in a roughing stand.
  • Powerful side guides are arranged both in front of and behind the roughing stand.
  • the geometry of a pre-strip should be specifically influenced in order to produce a straight pre-strip without thickness wedge and without lateral curvature.
  • the controls of the side guides and the roughing stand are linked together in such a way that a saber or wedge slab is transformed into a straight and wedge-free sliver.
  • the side guides are held in place with great force and only deflect when needed to protect the side guides and / or the scaffold from damage. The corresponding position of the side guides is recorded quantitatively.
  • the nip in the roughing mill is controlled in dependence of different sizes so that it remains parallel. It is known from DE 10 2004 043 790 A1 to arrange side guides in front of and / or behind a roll stand and to detect the lateral position of the side guides and / or forces exerted by the metal strip on the side guides. Depending on the values recorded, the geometry of the roll gap is changed in order to avoid a saber and / or a wedge.
  • the metal strip does not run straight but in a circular arc (also called a saber in professional circles) towards the next rolling stand.
  • the metal strip therefore meets off-center in the downstream rolling mill. This in turn has an asymmetric reduction in the downstream rolling stand.
  • the metal strip can therefore run out of the downstream rolling stand again with a saber.
  • the saber can be directed in the same direction as before or in the opposite direction.
  • side guides are provided.
  • the side guides are operated position-controlled in the prior art. If the lateral position of the metal strip has only a slight deviation from the desired position, the metal strip does not contact the side guides. Otherwise, sideways migration will result from one-sided grinding at one of the two sides. Guided limits or plays serpentine within the two side guides. A one-sided grinding damages the band edges.
  • a serpentine walking leads due to the uncontrolled lateral belt movement to an off-center puncture in the downstream rolling mill and thus to flatness errors. In extreme cases, the tape head can completely miss the nip of the following rolling mill stand or doubled into the nip of the following rolling mill.
  • the side guides are usually set narrow to leave the metal strip only a small lateral range of motion. This also has the consequence that the band edges are ground through the side guides and that the band is braced in itself.
  • the object of the present invention is to provide opportunities to be able to adjust the band position quickly, easily and reliably.
  • the presence of an independent detection device for the deviation of the lateral position of the metal strip from the desired position should not be required.
  • the risk of band Doppler should be reduced or avoided.
  • an operating method of the initially mentioned type is configured by
  • band position controller determines the control command utilizing the time derivative of the deviation of the lateral position of the tape head of the desired position such that a change in the deviation of the lateral position of the tape head is counteracted by the desired position.
  • the time derivative of the deviation of the lateral position of the tape head of the desired position is utilized in the determination of the control command and thus the control command determined such that a change in the deviation of the lateral position of the tape head of the desired position - mind you the change - counteracted , It can thereby be achieved that the metal strip runs as straight as possible out of the front roll stand by means of a finely metered counter-control. It is possible for the side guides to be adjusted in a force-controlled manner to the metal strip via a respective force regulator, and for the force regulator to be given a force setpoint effecting the force limitation. In this case, both side guides are always on the metal band. This has the advantage that even small deviations of the lateral position of the metal strip from the desired position can be detected easily.
  • the force regulators are activated only at a time when the tape head has run out of the front rolling stand by a predetermined length. This ensures that the tape head can reliably run into the area between the two side guides. In particular, this avoids that the front, extending in the bandwidth direction strip edge abuts against one of the side guides and thereby causes a high-altitude.
  • the force regulators can determine a respective additional setpoint value for a respective lower-level position controller, by means of which a position control of the respective lateral guide takes place.
  • the side guides are moved position-controlled via a respective position controller to a respective reference position.
  • the reference positions are in this case preferably predetermined such that the metal strip in the case of a central, completely straight transport from both side guides has a respective distance.
  • the position controllers each determine a force setpoint value for a respective subordinate force regulator as the respective manipulated variable.
  • the respective force setpoint is limited to a force limit by means of a respective limiter.
  • the limiters may be part of the respective position controller or stand-alone units arranged between the position controllers and the force controllers.
  • the band position controller determines the setting command such that the change in the deviation is reduced as much as possible, in particular to zero.
  • the metal strip runs out of the front rolling stand as soon as possible, at which point the change in deviation is reduced as much as possible.
  • the strip position controller When determining the setting command, the strip position controller preferably takes into account a current length by which the strip head in each case has run out of the front rolling stand. This results in a linearization of the adjustment of the band position controller.
  • a setting determines the front mill on which the front roll stand is set from the arrival of the tape head in the front roll stand. This setting is maintained until the deviation of the lateral position of the tape head from the desired position is detected by means of the side guides.
  • the model is preferably adapted on the basis of the positioning command determined by the belt position controller, and the adapted model is used as the basis for determining the setting of the front rolling stand when rolling another metal belt.
  • the model can be gradually improved on and on, so that improved settings can be determined for future metal strips to be rolled.
  • a model of the mill train prior to entry of the tape head into the rear mill stand, can also be used to determine a setting of the rear mill stand to which the rear mill stand will be set at the time the tape head enters the rear mill stand. It is possible that, when determining the position of the rear roll stand, the positioning command for the front roll stand determined by the strip position controller and / or the deviation of the lateral position of the strip head from the desired position and / or the temporal change of the lateral position of the strip head are taken into account , As a result, tape travel may already be optimized for the currently rolled strip.
  • the object is further achieved by a computer program having the features of claim 11.
  • the execution of the computer program causes the control device to operate the rolling train in accordance with an operating method according to the invention.
  • control device for a rolling train with the features of claim 12.
  • the control device is programmed with a computer program according to the invention, so that the control er worn operates the rolling mill according to an operating method according to the invention.
  • control device operates the rolling train in each case according to an operating method according to the invention.
  • the front and the rear rolling stand are rolling stands of a rolling mill designed as a finishing train.
  • FIG. 3 shows the two rolling stands of the rolling train of FIG. 2 from above
  • a metal strip 1 is to be rolled in a rolling train.
  • the metal strip 1 is conveyed in a transport direction x through the 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 rolling train is designed as a finishing train.
  • the rolling stands 2 are generally the rolling stands 2 of a finishing train.
  • the number of rolling stands 2 is usually between four and eight, for example at five, six or seven. Of the rolling stands 2, only their work rolls 3 are shown in FIG. 1 (and also in the other figures). In general, however, the rolling mills 2, in addition to the work rolls 3 more rolls, in particular in Quartogerüsten in addition to the work rolls 3 backup rolls and Sextogerüsten in addition to the work rolls 3 backup rolls and intermediate rolls.
  • the work rolls 3, the intermediate rolls and / or the backup rolls may be axially displaceable. However, this is not mandatory. Behind the last roll stand 2 are often a cooling section and / or a reel (not shown in the FIG) available.
  • the rolling train is controlled by a control device 4.
  • the control device 4 usually controls the entire rolling train. So it is usually only once for all rolling stands 2 of the rolling mill available. However, a parameterization of the control device 4 with respect to the individual rolling stands 2 may be different from rolling stand 2 to rolling mill 2.
  • the control device 4 is generally designed as a software programmable control device 4. It is therefore usually programmed with a computer program 5.
  • the computer program 5 determines the mode of action of the control device 4.
  • the computer program 5 comprises machine code 6 which can be processed by the control device 4.
  • the processing of the machine code 6 causes the control device 4 to operate the rolling mill in accordance with an operating method which will be explained in more detail below in conjunction with the further FIG.
  • the front roll stand 2 of FIGS. 2 and 3, i. the rolling stand from which the metal strip 1 runs out is the mainly relevant rolling stand 2.
  • the rear rolling stand 2 it is essentially only necessary for the metal strip 1 to be guided to the rear rolling stand 2.
  • the reference numeral 2 a is used for the front stand 2
  • the reference sign 2 b is used for the rear stand 2.
  • the tape head 7 of the metal strip 1 is guided laterally.
  • the side guides 8, 8 ' (more precisely: the adjusting devices 9, 9') are operated under power limitation in the context of the present invention. This applies at least during the period between the leakage of the tape head 7 from the front roll stand 2a and the running of the tape head 7 in the rear roll stand 2b. Forces F, F ', which are exerted by the side guides 8, 8' on the side edges 10, 10 'of the metal strip 1, are thus limited.
  • the side guides 8, 8 ' give way when the metal strip 1 exerts an excessive force on the side guides 8, 8', ie a force above a force limit Fmax.
  • the force limit Fmax can be, for example, between 2 kN and 10 kN, in particular between 4 kN and 6 k.
  • the force limit value Fmax is specified as a parameter or not, the force limit value Fmax is, however, kept constant in the context of the operating method according to the invention.
  • the respective position p, p 'of the side guides 8, 8' can be detected by means of corresponding sensors 11, 11 '. If the detection takes place while the tape head 7 is between the front roll stand 2a and the rear roll stand 2b, the positions p, p 'for the lateral position y of the tape head 7 and thus also for the deviation 5y of the lateral position y characteristic of a target position y *. This will be explained in more detail later in connection with two possible embodiments of the present invention.
  • the side guides 8, 8 ' the deviation 5y of the lateral position y of the tape head 7 can thus be detected quantitatively by a desired position y *.
  • the positions p, p ' can therefore be supplied to a determination device 12.
  • the determination device 12 can use the detected positions p, p ', the lateral position y of the tape head 7 and the deviation 5y of the lateral position y of the tape head 7 from the desired position y * determine.
  • the lateral position y can, as required, be related to one of the two side edges 10, 10 'or to a location between the two side edges 10, 10', in particular the band center. In the following, it is assumed that the lateral position y is related to the center of the strip-indicated in FIG. 3 by a dashed line. This definition facilitates arithmetic and explanation of the invention, but is not limited in content.
  • the control device 4 often implements a tape position controller 13 for the front rolling stand 2a while processing the computer program 5.
  • the band position controller 13 may be formed, for example, as a conventional PI controller. Alternatively, the band position controller can be designed, for example, as a model-predictive controller.
  • the band position controller 13 is supplied with the deviation 5y.
  • the band position controller 13 determines a setting command S for the front rolling stand 2a.
  • the control command S By means of the control command S, the change of the deviation 5y (ie not the absolute value of the deviation 5y, but the speed with which the tape head 7 emigrates laterally) is counteracted.
  • the rolling stand 2a is acted upon in accordance with the determined positioning command S.
  • the control command S can in particular cause a differential rolling force or a differential rolling gap.
  • the belt position controller 13 acts on the front rolling stand 2a in accordance with the determined control command S.
  • the two force regulators 14, 14 ' determinee corresponding control commands q, q' for the adjusting devices 9, 9 'and control them accordingly.
  • the specification of the force limit value Fmax as a force setpoint value F *, F '* for both force regulators 14, 14' causes the force limitation in this case.
  • the two positions p, p ' are used.
  • the accuracy of the determination of the lateral position y can be improved.
  • the sign of the sum of the positions p, p ' can be evaluated.
  • the lateral position y - depending on the sign - can be determined according to one of the two equations below, where b is the width of the metal strip 1 which is known without further ado:
  • the force regulator 14, 14' activated only at a time at which the tape head 7 expired from the front roll stand 2a by a predetermined length Lmin is.
  • the predetermined length Lmin is larger than the distance of the side guides 8, 8 'from the front rolling stand 2a, as shown in FIG. Only after that point in time are the force regulators 14, 14 activated and thereby the side guides 8, 8 'are set against the side edges 10, 10'.
  • a position control can be active, which keeps the side guides 8, 8 'in a retracted position.
  • the respective actual length L, by which the tape head 7 has run out of the front rolling stand 2a, can be determined, for example, by integrating a transport speed v at which the metal strip 1 leaves the rolling stand 2a.
  • the force regulators 14, 14 ' act via lower-level position controllers 15, 15' on the side guides 8, 8 '.
  • a position control of the respective lateral guide 8, 8 ' takes place by means of the subordinate position controllers 15, 15'.
  • the position regulators 15, 15 'corresponding to the representation in FIG 5 corresponding reference positions p *, p' * and the associated positions p, p 'are supplied.
  • the force regulators 14, 14 ' determine a respective additional setpoint value ⁇ , ⁇ ' for the respective subordinate position regulator 15, 15 '.
  • the force regulators 14, 14 ' are generally designed as I-controllers, ie they have an integrating effect.
  • the force regulators 14, 14 'in this case usually a respective limiter 16, 16' downstream, by means of which the output signal of the respective force regulator
  • the two position controllers 15, 15 '- independently of one another - each determine a force setpoint value F *, F' * as the respective manipulated variable.
  • the two force setpoint values F *, F '* are supplied to limiters 16, 16'.
  • the limiters 16, 16' In the limiters 16,
  • the force setpoint values F *, F' * are limited on one side to the uniform force limit value Fmax.
  • the - possibly limited - force setpoint values F *, F '* are then fed to the force regulators 14, 14'.
  • the force regulators 14, 14 ' are in the embodiment of FIG 6 the position controllers 15,
  • the band position controller 13 does not use the deviation 5y of the lateral position y from the target position y *, but rather the time derivative, ie the speed with which the tape head 7 emigrates laterally.
  • the band position controller 13 can continue to take into account the actual length L and possibly also other variables such as, for example, the transport speed v. As a result, the behavior of the control can be linearized.
  • the band position controller 13 can continue to make a smoothing and / or a limitation of the control command S.
  • the band position controller 13 determines the setting command S such that the change in the deviation 5y is reduced as much as possible, in particular to zero.
  • par- dere means the reduction of the change of the deviation 5y to zero, that the metal strip 1 from this point straight out of the front roll stand 2a expires. This control is thus the desired control of the roll stand 2a.
  • the control command S is not determined so that the deviation 5y itself is reduced as much as possible.
  • the control device 4 implements inter alia a model 17 of the rolling train.
  • the control device 4 uses the model 17 to determine an adjustment of the respective rolling stand 2, to which the respective rolling stand 2 is set. This determination is made before the running of the tape head 7 in the respective rolling stand 2.
  • the determined setting applies to the time from the arrival of the tape head 7 in the respective rolling stand 2 or - hereby substantially equivalent - for the time at which the tape head. 7 reaches the respective rolling mill 2. This applies to each rolling stand 2 of the rolling train and thus also to the front rolling stand 2a and the rear rolling stand 2b.
  • the setting determined by means of the model 17 for the front rolling stand 2 a is maintained until the deviation 5 y of the lateral position y of the tape head 7 from the desired position y * is detected by means of the side guides 8, 8 '. Up to this time, therefore, there is no correction of the setting of the front rolling stand 2a. Without further measures, therefore, a subsequent further metal strip 1 is first rolled with the same, possibly erroneous settings.
  • the model 17 is adapted by means of the positioning command S determined by the band position controller 13. This makes it possible to use the adapted model 17 when rolling the additional metal strip 1 to determine the setting of the front rolling stand 2a.
  • the control command S is the control command S in which the variation of the deviation 5y is reduced as much as possible.
  • the advance by means of the model 17 determined setting of the rear roll stand 2b kept unchanged.
  • the adjustment command S determined by the strip position controller 13 for the preceding roll stand 2a and / or the deviation 5y of the lateral position y of the strip head 7 from the desired position y * and / or to take into account the temporal change of the lateral position y so to correct the previously determined setting.
  • This correction can also be done without adaptation of the model 17.
  • the model 17 may be designed such that it determines the setting of the rolling stands 2 taking into account the variables mentioned.
  • the control command S is that control command S, in which the change in the deviation 5y is reduced as much as possible.
  • the control device 4 which implements the implementation of the operating method according to the invention, is designed in such a way on the basis of the programming with the computer program 5.
  • the computer program thus effects, as shown in FIGS. 3, 4 and 5, that the control device 4 implements corresponding software blocks.
  • the invention has many advantages.
  • the side guides 8, 8 ' are usually present anyway. There are therefore no additional means required to determine the lateral position y of the tape head 7.
  • damage to the side edges 10, 10 'and also to the side guides 8, 8' can be reliably avoided due to their force limitation.
  • the risk of band Doppler can also be significantly reduced. Nevertheless, it can be ensured in a simple manner that the metal strip 1 ends as straight as possible out of the front rolling stand 2a.

Abstract

L'invention concerne le laminage d'une bande métallique (1) présentant une tête de bande (7) dans un train de laminage. Le train de laminage présente au moins une cage de laminoir avant (2a) et une cage de laminoir arrière (2b) agencée en aval de la cage de laminage avant (2a). Le train de laminage présente par ailleurs des guides latéraux (8, 8') de la bande métallique (1) placés entre les deux cages de laminoir (2a, 2b). Les guides latéraux (8, 8') fonctionnent avec une force limitée. Pendant l'intervalle de temps séparant la sortie de la tête de bande (7) de la cage de laminoir avant (2a) de l'entrée de la tête de bande (7) dans la cage de laminoir arrière (2b), un écart (δy) entre la position latérale (y) de la tête de bande (7) et une position de consigne (y*) est détecté quantitativement au moyen des guides latéraux (8, 8'). Une instruction de réglage (S) de la cage de laminoir avant (2a) est déterminée par un régulateur (13) de la position de la bande. La cage de laminoir avant (2a) est soumise à l'action du régulateur (13) de la position de la bande conformément à l'instruction de réglage (S) Le régulateur (13) de la position de la bande détermine l'instruction de réglage (S) en évaluant la dérivée temporelle de l'écart (δy) entre la position latérale (y) de la tête de bande (7) et la position de consigne (y*) de manière à contrer une variation de l'écart (δy) entre la position latérale (y) de la tête de bande (7) et la position de consigne (y*).
EP17816453.9A 2016-11-24 2017-11-06 Réglage de position de bande consistant à positionner des guides latéraux sur la bande métallique, avec limitation de force Active EP3544751B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP16200523 2016-11-24
PCT/EP2017/078333 WO2018095717A1 (fr) 2016-11-24 2017-11-06 Régulation de la position d'une bande par positionnement à force limitée de guides latéraux au niveau de la bande métallique et correction du positionnement des cylindres

Publications (2)

Publication Number Publication Date
EP3544751A1 true EP3544751A1 (fr) 2019-10-02
EP3544751B1 EP3544751B1 (fr) 2020-12-30

Family

ID=57394476

Family Applications (1)

Application Number Title Priority Date Filing Date
EP17816453.9A Active EP3544751B1 (fr) 2016-11-24 2017-11-06 Réglage de position de bande consistant à positionner des guides latéraux sur la bande métallique, avec limitation de force

Country Status (2)

Country Link
EP (1) EP3544751B1 (fr)
WO (1) WO2018095717A1 (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3599038A1 (fr) 2018-07-25 2020-01-29 Primetals Technologies Austria GmbH Procédé et dispositif de détermination du contour de bande latéral d'une bande métallique en mouvement
CN112823941B (zh) * 2019-11-21 2022-02-22 宝山钢铁股份有限公司 基于火花识别的热轧卷取侧导板控制方法
DE102021205275A1 (de) * 2021-05-21 2022-11-24 Sms Group Gmbh Verfahren zum Betreiben eines Walzgerüstes
TWI779910B (zh) * 2021-10-28 2022-10-01 中國鋼鐵股份有限公司 偵測邊導器鋼帶品質的軋延系統與偵測方法

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102004043790A1 (de) 2004-09-08 2006-03-09 Betriebsforschungsinstitut VDEh - Institut für angewandte Forschung GmbH Verfahren und Vorrichtung zum Walzen eines Metallbands
DE102005021769A1 (de) 2005-05-11 2006-11-23 Sms Demag Ag Verfahren und Vorrichtung zur gezielten Beeinflussung der Vorbandgeometrie in einem Vorgerüst
EP2910316A1 (fr) * 2014-02-21 2015-08-26 Primetals Technologies Germany GmbH Précommande simple du pas de filetage d'un ébaucheur
DE102014215396A1 (de) * 2014-08-05 2016-02-11 Primetals Technologies Germany Gmbh Differenzzugregelung mit optimierter Reglerauslegung
DE102014215397B4 (de) 2014-08-05 2016-04-28 Primetals Technologies Germany Gmbh Bandlageregelung mit optimierter Reglerauslegung

Also Published As

Publication number Publication date
EP3544751B1 (fr) 2020-12-30
WO2018095717A1 (fr) 2018-05-31

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