EP1893367B1 - Procede de regulation d'un segment de reglage dans un dispositif de coulee continue - Google Patents

Procede de regulation d'un segment de reglage dans un dispositif de coulee continue Download PDF

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Publication number
EP1893367B1
EP1893367B1 EP06755231A EP06755231A EP1893367B1 EP 1893367 B1 EP1893367 B1 EP 1893367B1 EP 06755231 A EP06755231 A EP 06755231A EP 06755231 A EP06755231 A EP 06755231A EP 1893367 B1 EP1893367 B1 EP 1893367B1
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European Patent Office
Prior art keywords
regulator
force
controller
value
inclination
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Not-in-force
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EP06755231A
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German (de)
English (en)
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EP1893367B2 (fr
EP1893367A1 (fr
Inventor
Bernhard Weisshaar
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Primetals Technologies Germany GmbH
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Siemens AG
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
    • B22D11/12—Accessories for subsequent treating or working cast stock in situ
    • B22D11/1206—Accessories for subsequent treating or working cast stock in situ for plastic shaping of strands
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
    • B22D11/12—Accessories for subsequent treating or working cast stock in situ
    • B22D11/128—Accessories for subsequent treating or working cast stock in situ for removing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
    • B22D11/16—Controlling or regulating processes or operations
    • B22D11/20—Controlling or regulating processes or operations for removing cast stock
    • B22D11/208—Controlling or regulating processes or operations for removing cast stock for aligning the guide rolls

Definitions

  • the invention relates to a method for controlling a Anstellsegmentes in a continuous casting, wherein the Anstellsegment has a sub-frame and an upper frame, which are adjusted by adjusting elements in position and tilt relative to each other, wherein a strand between an input and an output in a casting direction is guided by the sub-frame and the upper frame, each adjusting element is controlled by a respective position controller.
  • Continuous casting plants are used for continuous casting of square (billets) or rectangular (slabs) cross sections in molds.
  • the strand is performed in slab after leaving a cooled mold preferably for supporting a strand shell and to achieve a reduction in thickness in Anstellsegmenten.
  • a Anstellsegment preferably consists of a movable upper and a fixed subframe, both of which are provided with a plurality of rollers.
  • the upper frame of a Anstellsegmentes can be positioned vertically relative to the sub-frame via two hydraulically actuated adjusting elements in the vicinity of the input and the output within certain limits, for example.
  • the aim of a preferably automated adjustment or adjustment of Anstellsegmentes is to set an input jaw width between the first upper and lower rollers at the entrance and the last upper and lower rollers at the output to predetermined values. Because of, for example, a thermal shrinkage of the strand, the input jaw width at the input of the Anstellsegmentes must be greater than an output jaw width at the output of Anstellsegmentes.
  • the Anstellsegment here comes the task to give a strand or generally a conveyed a certain shape or for a particular Thickness of a strand at the output of Anstellsegmentes to provide. An error of the thickness of the strand must preferably be less than 0.1 mm.
  • the Anstellsegment has the task, for example, to support a partially solidified strand shell of a liquid metal.
  • the DE 101 60 636 A1 discloses a method for adjusting a casting gap on a strand guide of a continuous casting plant. There is a plurality of successively arranged in strand strand strand guide elements present, with each strand guide element individually a casting gap can be adjusted.
  • the casting gap is initially set at the start of casting as over the entire length of the strand guide parallel extending or piecewise wedge-shaped casting gap.
  • the distances of the rollers of the upper and lower roller carriers are adjusted according to hydraulic adjusting cylinder at support segments for the strand, which are formed by lower and upper roller carriers. These can be controlled via separate position control loops in order to readjust the casting gap in plant operation.
  • the invention has for its object to provide a method for increasing the accuracy in the control of Anstellsegmentes available.
  • At least two of the position controllers at least at the entrance to a transverse controller for controlling an inclined position transversely to the casting direction and / or for adjusting a position difference between a first of the adjusting elements and a second of the adjustment prepared.
  • a transverse controller for controlling an inclined position transversely to the casting direction and / or for adjusting a position difference between a first of the adjusting elements and a second of the adjustment prepared.
  • the longitudinal controller determines a first position correction value for the position controllers at the input and a second position correction value for the position controllers at the output.
  • the skew between the input and the output can not be eliminated by the cross regulators alone.
  • forwarding position correction values for the position controllers at the input and for the position controllers at the output an oblique position in the longitudinal direction, ie in the casting direction, can be continuously maintained in the required position by the position correction values.
  • a skew actual value is determined by a difference formation of position values of adjusting elements at the input and the output. Since the individual position controllers preferably already have individual position encoders, this procedure is advantageous.
  • an average of the position values is provided at the input and output. Since the input and the output can each have an oblique position in the transverse direction, an averaging of the individual position values of the adjusting elements at the input and / or the adjusting elements at the output is advantageous for the determination of the skew actual value.
  • each position controller is assigned a force limiting controller.
  • Force limiters are used to avoid damage or malfunction in plant operation.
  • a further increase in the control accuracy is achieved by selecting a non-linear controller as the transverse controller and / or the longitudinal controller.
  • unwanted actual values can thus be ignored for the transverse controller and / or the longitudinal controller.
  • the lateral regulator and / or the longitudinal regulator is a non-linear regulator which degrades an oblique position by increasing the respective lower side.
  • the cross-controller and / or the longitudinal controller ignore negative deviations.
  • a particular embodiment of the invention is that in case of failure of a position sensor of an adjustment of the associated position controller by a fault controller, which receives a nominal value of a force value of the nearest adjusting element is replaced.
  • the position controller is replaced, for example, by a proportional error controller for the force in case of failure of a position sensor.
  • a position correction value for the positioning of the respective adjustment element is determined.
  • the force limiting controller generates a position correction setpoint when a force limit is exceeded. If a force limit has been reached or already exceeded, advantageously the position correction setpoint can be added to the instantaneous position value, which results in an immediate decrease in the force achieved.
  • a force limiting regulator preferably comprises at least three partial force controllers.
  • At least one of the following predeterminable force limits and / or force setpoints is used for each adjustment element: A maximum force in the opening direction, a maximum force in the closing direction, a minimum force in the closing direction.
  • the position correction value for the position control is determined by means of a cascade control, wherein an error control loop includes a force limiting control loop and the force limiting control loop includes a tilt control loop and the tilt control loop includes a position control loop. Parameterization of the control loops can thus be carried out systematically from the inside to the outside, starting with the position controllers via the bank angle limit controllers, the force limiting controllers and the error controllers.
  • a control device for a positioning segment has a longitudinal regulator for regulating an inclined position in the casting direction, it is advantageously possible for a process-related longitudinal bevel of the positioning segment to be kept below a predefinable limit.
  • the longitudinal regulator is adapted to produce two position correction values, namely a first position correction value for at least one position controller at the input and a second position correction value for at least one position controller at the output.
  • each adjusting element has a position transmitter.
  • the inclined position of the Anstellsegmentes can be quickly and accurately compensated.
  • a cross controller for the input and another cross controller for the output.
  • Cross-control at the input and at the output of the Anstellsegmentes a tilting position can be limited. Dynamic skews can also occur during a running, force-free positioning or static position differences can occur if, for example, the strand cross-section is trapezoidal, or an optionally inserted force limiting regulator only engages on one side of the control element.
  • a cross-controller can successfully cross the tilt or skew position limit to the casting direction of Anstellsegmentes or the upper frame.
  • a position controller has an error controller, which receives a force actual value of the nearest adjusting element in case of failure of a position sensor as the setpoint.
  • a force limiting controller is provided for each position controller.
  • FIG. 1 shows a detail of a schematic diagram of a continuous casting 2.
  • the continuous casting 2 is prepared with Anstellsegmenten 1 for guiding a strand 3.
  • the Anstellsegmente 1 serve to guide the strand 3 from a vertical to a horizontal position.
  • the already partially solidified strand 3 is guided through the Anstellsegmente 1.
  • the strand 3 is guided on a roll table 4 for a next processing step in the continuous casting plant 2.
  • FIG. 2 shows a Anstellsegment 1 in a side view.
  • the Anstellsegment 1 has a sub-frame 9 and a top frame 10.
  • the strand 3 is guided by means of rollers 8 through an output segment 1 up to an output EX.
  • the Anstellsegment 1 can be set for any thicknesses of a strand 3.
  • a so-called straight segment type 1 is shown here; analogous conditions apply for a uniformly curved segment type or for a non-uniformly curved segment type.
  • a uniformly curved segment type leads the strand 3 in a circular arc.
  • a non-uniformly curved segment type which leads the strand 3 with a decreasing curvature, is referred to as a straightening segment with decreasing curvature.
  • FIG. 3 shows the Anstellsegment 1 in a plan view.
  • the Anstellsegment 1 In the vicinity of the input EN, the Anstellsegment 1, a first Adjustment device 12 and a second adjusting device 13.
  • the Anstellsegment 1 In the vicinity of the output EX, the Anstellsegment 1, a third adjusting device 14 and a fourth adjusting device 15.
  • the four adjusting devices 12, 13, 14, 15 the upper frame 10 of the Anstellsegmentes 1 relative to the lower frame 9 via two hydraulic adjusting devices 12 and 13 or 14 and 15 in the vicinity of the input EN and in the vicinity of the output EX within certain Borders are positioned or adjusted.
  • FIG. 4 shows such a positioning of the upper frame 10 to the subframe 9.
  • the adjusting devices 12 and 13 are positioned relative to the adjusting devices 14 and 15 with a larger Anstellweite such that there is a tilt of the upper frame 10 relative to the lower frame 9.
  • the upper frame 10 is guided in this case via a respective Gleitschutz 50 side. Due to the desired inclined position of the upper frame 10, a reduction in thickness of the strand 3 is achieved.
  • FIG. 5 shows a device for controlling the Anstellsegmentes 1 fragmentary in a block diagram.
  • the control device is prepared with one position controller S1, S2, S3 and S4 for the four Anstellsegmente 12,13,14, 15.
  • the respective manipulated variable y1 to y4 which is output as a servo valve current value or as a position value, is provided at the output of the position controllers S1 to S4.
  • Each position controller S1 to S4 is assigned a respective force limiting controller F1 to F4.
  • the position controllers S1 and S2 are assigned a transverse controller Q 12 for limiting an inclined position transversely to a transport or casting direction.
  • the position controllers S3 and S4 are assigned a further transverse controller Q 34 for limiting or correcting an inclined position transversely to the casting direction at the output.
  • the position controllers S1 to S4 are supplied with the respective actual position values x S1 , x S2 , x S3 and x S4 , which are transmitted via position sensors (not shown) of the individual adjusting devices 12 to 15 are determined.
  • the sign of the position x s for the opening direction is agreed to be positive.
  • the position controllers S1 to S4 each receive position setpoint values W s1 , W s2 , W s3 , W s4 and position correction values which are determined by means of the superimposed sub-controllers.
  • the lateral regulators Q 12 and Q 34 are adapted to provide position correction values W S112 , W S212 , W S334 and W S434 .
  • the force limitation controllers F1 to F4 are also prepared for generating position correction target values W SF1 to W SF4 .
  • the control device has a longitudinal regulator L.
  • the longitudinal controller provides two position correction values , a position correction value W SEN for position correction at input EN and another position correction value W SEX for position correction at output EX.
  • the position controllers S1 to S4 have a linear proportional characteristic (P-controller).
  • each position controller 26 (S1 to S4) W F is thus each associated with an error controller 24.
  • these error controllers 24 receive a force actual value x F1 to x F4 of the respective neighboring setting device.
  • the error controller 24 is a force controller and not a limit controller, the error controller 24 has no similarities with the force limiters F1 to F4 and is only active in case of failure of each position sensor.
  • the current position correction values W S112 , W S212 , WS S34, W S434 of the transverse controllers Q 12 and Q 34 and of the longitudinal controller L are maintained at their last valid values, thus returning to the old one when the sensor fault disappears Correction state can be set up.
  • Each force limitation controller F1 to F4 consists of three partial force controllers 30, 31, 32 (see FIG. 7 ).
  • a first partial force controller 30 serves to limit the force of a maximum Force in the opening direction 34
  • a second partial force controller 31 serves to limit the force of a maximum force 35 in the closing direction
  • a third part of force controller 32 serves to limit the force of a minimum force 36 in the closing direction.
  • the third partial force controller 32 ensures a Wegand Wegkraft if the associated position setpoint, for example, W S1 , does not lead to contact with the strand 3.
  • the sign of the actual force value X F for the closing direction has been agreed to be positive.
  • All of the force limit controllers F1 to F4 generate position correction target values W Sf1 to W Sf4 which are added to the position command values W S1 to W S4 .
  • the following is a description of the non-linear mode of action of the partial force controller 30,31,32 based on the case distinction opening the Anstellsegments, closing the Anstellsegments with strand 3 or spacers and closing the Anstellsegmentes with contacting the strand. 3
  • the force limit setpoint is the maximum force in the opening direction 34 and greater than zero.
  • a control deviation from the maximum force in the opening direction 34 and the force actual value x F is positive and the output of the partial force controller 30 therefore Zero limited.
  • the output of the fractional force controller 30 therefore provides a negative position correction setpoint for the position. This reduces the total position correction target value W SF , so that the upper frame 10 is stopped or even lowered again until the control deviation becomes zero. Since the partial force controller 30 has a proportional-integral characteristic (PI behavior), the controller output keeps the correction setpoint even if the control deviation disappears.
  • PI behavior proportional-integral characteristic
  • the force limit setpoint is the maximum force 35 in the closing direction and greater than zero.
  • the control deviation is negative and the output of the second partial force controller 31 is therefore limited to zero. If the force actual value x F exceeds the maximum force 35 in the closing direction due to an excessively low position setpoint, the control deviation becomes positive.
  • the output of the fractional force controller 31 therefore provides a positive total position correction setpoint W SF for the associated position controller. This increases the overall position correction target, so that the upper frame 10 is raised slightly. Due to the PI characteristic of the controller, the correction setpoint is retained even if the control deviation disappears.
  • the minimum force setpoint is the minimum force in the closing direction and greater than zero.
  • the control deviation is then positive and the output of the third partial force controller 32 is limited to zero. If the force actual value x F falls below the limit of the minimum force 36 in the closing direction, a negative total position correction setpoint W SF is produced for the associated position controller. This reduces the total position correction target value, so that the upper frame 10 is lowered. Because of the PI characteristic of the controller, the position correction setpoint is retained even if the control deviation disappears.
  • each partial force controller 30, 31, 32 is also automatically reduced again.
  • the first case would be best served by a function that lowers the higher side position and at the same time raises the low side position or lowers only the higher side position or just raises the low side position and also very much dynamic.
  • the second case calls for a function that keeps the position at which the force limit controls are active constant and adjusts only the other side in height.
  • a control function covering both cases is given with the second case.
  • the cross-controller Q 12 It is the task of the cross-controller Q 12 to monitor a tilted position of the upper frame 10 on the hydraulic cylinders of the adjusting devices 12 and 13.
  • the cross-controller Q 12 only becomes active if a maximum permissible position difference ⁇ S 12 or inclined position is exceeded. If the two adjusting devices 12 and 13 are able to move in the required direction, the inclined position of the two adjusting devices 12 and 13 is compensated. If one of the two jobs prevents further positioning, because the maximum force 35 is reached in the closing direction, only the other adjusting device will compensate for the skew.
  • An analogous behavior applies to the cross-controller Q 34 .
  • the cross regulators Q 12 and Q 34 must be of the proportional-integral type (PI controller) so that the controllers maintain the position correction as long as the skew at their limit, ie as long as the control deviation is equal to zero. If the inclined position loosens transversely to the casting direction, eg due to changed system states from the respective limit, the correction intervention is also automatically reduced again. An inclination of the upper frame 10 between the input EN and the output EX can not be eliminated by the lateral regulators Q 12 and Q 34 . In contrast to the oblique position transverse to the casting direction, the skew in the casting direction is desired. As a result, a shrinkage and / or a soft taper can be set.
  • PI controller proportional-integral type
  • the skew in the casting direction is forced by a corresponding specification of the position setpoints.
  • the skew actual value ⁇ S ENEX is formed by a subtraction of the averaged position actual values on the input side and on the output side of the Anstellsegmentes 1 (see FIG. 9 ). If the adjusting devices 12, 13 at the input EN and the adjusting devices 14, 15 at the output EX can move in the required direction, the inclined position of all adjusting devices is compensated. If an adjuster pair, for example 12 and 13, prevents further movement because the maximum force 35 is reached in the closing direction, only the other adjuster pair 14 and 15 will decrease the skew by raising the position of the upper frame 10. If a maximum permissible skew is exceeded, therefore, always the lower position of the higher position is tracked.
  • the lateral controllers Q 12 and Q 34 and the longitudinal controller L are characterized in that they are superimposed on the position control and generate a position correction value.
  • the integral component supplies the stationary correction setpoint. This is itself again limited to prevent too much "charging" of the I-share.
  • FIG. 6 shows one of the position controller S1 to S4 in detail.
  • the position controller has an error controller 24 in addition to the actual position controller 26.
  • the error controller 24 forms a redundant system with the position controller 26. In the normal case, only the position controller 26 is effective.
  • the position controller has an error signal 22.
  • the error signal 22 is fed via an inverter 25 to the position controller 26 to an enable input 23. In the undisturbed case, the error signal 22 is equal to zero and is set to one by means of the inverter and thus the enable input 23 is "enabled". In the event of an error, the error signal 22 to one and thus the enable input 23 of the position controller 26 is disabled by means of the inverter 25 and its function is disabled.
  • Error controller 24 and position controller 26 thus operate depending on the operating state in the alternating mode.
  • the position controller 26 is "jerk-free" replaced by the error controller 24 in case of failure of a position sensor.
  • the error controller 24 receives as a setpoint the force actual value of the respective neighboring adjusting device.
  • a position controller S1 to S4 has an offset integrator 20 for compensating a servo valve leakage current and for overcoming adhesive forces in the hydraulic cylinder of the adjusting devices.
  • FIG. 8 shows in detail one of the cross-controller Q 12 or Q 34 .
  • Such a cross-controller has two PI controllers with limit 40, 41. Via a first subtraction point, the actual position values x S1 and x S2 are fed to two further differentiation points, to which the maximum value ⁇ S 12 is applied.
  • FIG. 9 shows the longitudinal regulator L in detail.
  • the longitudinal controller L is constructed with two PI controllers 42 and 43 analogous to the transverse controllers.
  • the longitudinal controller L is prepared for the evaluation of all four actual position values x S1 to x S4 . From the position actual values x S1 and x S2 , the mean value is formed by means of a first multiplication point 44. Also the position actual values x S3 and x S4 are averaged over a second multiplication point 45.
  • a consistent additive interconnection of the position controller S1 to S4, the force limiters F1 to F4, the cross-controller Q 12 , Q 34 and the longitudinal controller L via position correction values allows a simplified start-up of a control device for a continuous casting plant 2.
  • the parameterization of the control loops can systematically from the inside to the outside, starting with the position controllers S1 to S4 on the tilt limit controller, here the cross-controller Q 12 , Q 34 and the longitudinal controller L, the force limiters F1 to F4 to the error Controls 24 are made.
  • each sub-controller has a clear task without a mutual coupling. Even if, for example, force and oblique position limit controllers become active at the same time, this can easily be recognized by the controller outputs, because each controller can only correct in one direction.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Continuous Casting (AREA)
  • Injection Moulding Of Plastics Or The Like (AREA)
  • Feedback Control In General (AREA)

Claims (15)

  1. Procédé de régulation d'un segment ( 1 ) de serrage dans une installation ( 2 ) de coulée continue, dans lequel le segment ( 1 ) de serrage comporte un bâti ( 9 ) inférieur et un bâti ( 10 ) supérieur, qui peuvent être ajustés l'un par rapport à l'autre en leur position et inclinaison par des éléments ( 12, 13, 14, 15 ) de réglage, une barre ( 3 ) entre une entrée ( EN ) et une sortie ( EX ) étant guidée dans une direction de coulée par le bâti ( 9 ) inférieur et par le bâti ( 10 ) supérieur, chaque élément ( 12, 13, 14, 15 ) de réglage étant réglé par respectivement un régleur ( S1, S2, S3, S4 ) de position, dans lequel au moins à l'entrée ( EN ) respectivement deux des régleurs ( S1, S2, S3, S4 ) de position étant associés à un régleur ( Q, Q12, Q34 ) transversal et une régulation de l'inclinaison transversalement à la direction de coulée et une régulation, d'une différence de position entre un premier des éléments ( 12 ) de réglage et un deuxième des éléments ( 13 ) de réglage, étant effectuée au moyen du régleur ( Q, Q12, Q34 ) transversal, l'inclinaison relative dans la direction de coulée étant réglée de la manière suivants :
    - dans un régleur ( L ) longitudinal, une valeur ( Xsen-Xsex ) d'inclinaison est calculée par la formation d'une différence de valeurs ( XS1, XS2, Xs3, Xs4 ) de position des éléments ( 12, 13, 14, 15 ) de réglage à l'entrée ( EN ) et à la sortie ( EX ), une moyenne ( Xsen, Xsex ) des valeurs ( XS1, XS2, Xs3, Xs4 ) de position à l'entrée ( EN ) et/ou à la sortie ( EX ) étant mise à disposition pour la formation d'une différence,
    - à partir de la valeur ( Xsen-Xsex ) réelle d'inclinaison, une valeur ( Wsen, Wsex ) de correction de position est calculée dans le régleur ( L ) longitudinal,
    - pour la modification de l'inclinaison dans la direction de coulée, la valeur ( Wsen, Wsex ) de correction de position est acheminée au régleur ( S1, S2, S3, S4 ) de position.
  2. Procédé suivant la revendication 1, dans lequel, pour respectivement un régleur ( S1, S2, S3, S4 ) de position, on utilise un régleur ( F1, F2, F3, F4 ) de limitation de force qui lui est associé.
  3. Procédé suivant la revendication 1 ou revendication 2, dans lequel deux des régleurs ( S3, S4 ) de position sont associés à la sortie ( EX ) à un autre régleur ( Q34 ) transversal.
  4. Procédé suivant l'une des revendications 1 à 3,
    dans lequel on détermine par le régleur ( L ) longitudinal
    - une première valeur ( Wsen ) de correction de position pour les régleurs ( S1, S2 ) de position à l'entrée ( EN ) et
    - une deuxième valeur ( Wsex ) de correction de position pour les régleurs ( S3, S4 ) de position à la sortie ( EX ).
  5. Procédé suivant l'une des revendications 1 à 4,
    dans lequel, si une inclinaison maximum admissible est dépassée, on suit la position la plus basse de la position la plus haute.
  6. Procédé suivant l'une des revendications 1 à 5,
    dans lequel on choisit, comme régleur ( Q ) transversal et/ou comme régleur ( L ) longitudinal, un régleur non linéaire.
  7. Procédé suivant la revendication 6,
    dans lequel on choisit, comme régleur ( Q ) transversal et/ou comme régleur ( L ) longitudinal, un régleur non linéaire, qui diminue une inclinaison par élévation du côté respectivement le plus bas.
  8. Procédé suivant la revendication 6 ou 7,
    dans lequel le régleur ( Q ) transversal et/ou le régleur ( L ) longitudinal ne tient pas compte d'écarts de régulation négatifs.
  9. Procédé suivant l'une des revendications 1 à 8,
    dans lequel, si un indicateur de position d'un élément ( 12, 13, 14, 15 ) de réglage est défaillant, le régleur ( S1, S2, S3, S4 ) de position associé est relevé par un régleur ( 24 ) d'erreur, qui reçoit comme valeur de consigne une valeur ( XF1, XF2, XF3, XF4 ) de force de l'élément ( 12, 13, 14, 15 ) de réglage immédiatement suivant.
  10. Procédé suivant l'une des revendications 1 à 9,
    dans lequel, si un indicateur de position d'un élément ( 12, 13, 14, 15 ) de réglage est défaillant, on maintient la valeur ( WS112, WS212, Wsen, Wsex ) de correction de position du régleur ( Q ) transversal et/ou celle du régleur ( L ) longitudinal à sa dernière valeur pendant la durée de la défaillance.
  11. Procédé suivant l'une des revendications 2 à 10,
    dans lequel, s'il y a défaillance ou si un régleur ( S1, S2, S3, S4 ) de position n'atteint pas une valeur de consigne de position, on détermine par le régleur ( F1, F2, F3, F4 ) de limitation de force respectif une valeur de correction de force pour la mise en position de l'élément ( 12, 13, 14, 15 ) de réglage respectif.
  12. Procédé suivant l'une des revendications 2 à 11,
    dans lequel le régleur ( F1, F2, F3, F4 ) de limitation de force produit, lorsqu'une limite de force est dépassée, une valeur ( WSf1, WSf2, WSf3, WSf4 ) de consigne de correction de position.
  13. Procédé suivant l'une des revendications 2 à 12,
    dans lequel on choisit l'un des régleurs ( F1, F2, F3, F4 ) de limitation de force, de manière à ce qu'il comprenne au moins trois sous-régleurs ( 30, 31, 32 ) de force.
  14. Procédé suivant l'une des revendications 2 à 13,
    dans lequel, pour chaque élément ( 12, 13, 14, 15 ) de réglage, on utilise au moins l'une des limites de force pouvant être prescrite et/ou valeurs de consigne de force suivantes :
    - une force maximum dans la direction ( 34 ) d'ouverture,
    - une force ( 35 ) maximum dans la direction de fermeture,
    - une force ( 36 ) minimum dans la direction de fermeture.
  15. Procédé suivant l'une des revendications 2 à 14,
    dans lequel on détermine la valeur de correction de position pour la régulation de position par une régulation en cascade, un circuit de régulation d'erreur incluant un circuit de régulation de limitation de force et le circuit de régulation de limitation de force incluant un circuit de régulation d'inclinaison et le circuit de régulation d'inclinaison incluant un circuit de régulation de position.
EP06755231.5A 2005-06-20 2006-05-17 Procede de regulation d'un segment de reglage dans un dispositif de coulee continue Not-in-force EP1893367B2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102005028703A DE102005028703A1 (de) 2005-06-20 2005-06-20 Verfahren zur Regelung und/oder Steuerung eines Anstellsegmentes in einer Stranggießanlage und Vorrichtung hierfür
PCT/EP2006/062374 WO2006136484A1 (fr) 2005-06-20 2006-05-17 Procede de regulation et/ou de commande d'un segment de reglage dans un dispositif de coulee continue et dispositif destine a la mise en oeuvre de ce procede

Publications (3)

Publication Number Publication Date
EP1893367A1 EP1893367A1 (fr) 2008-03-05
EP1893367B1 true EP1893367B1 (fr) 2012-03-14
EP1893367B2 EP1893367B2 (fr) 2020-06-10

Family

ID=36636202

Family Applications (1)

Application Number Title Priority Date Filing Date
EP06755231.5A Not-in-force EP1893367B2 (fr) 2005-06-20 2006-05-17 Procede de regulation d'un segment de reglage dans un dispositif de coulee continue

Country Status (5)

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EP (1) EP1893367B2 (fr)
CN (1) CN101247908B (fr)
AT (1) ATE549111T1 (fr)
DE (1) DE102005028703A1 (fr)
WO (1) WO2006136484A1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT506835B1 (de) * 2008-05-16 2010-09-15 Siemens Vai Metals Tech Gmbh Verfahren zum sichern eines anfahrstranges in einer stranggiessanlage und stranggiessanlage mit einem anfahrstrang
CN105537282B (zh) * 2015-12-19 2017-07-28 太原重工股份有限公司 穿孔机机内辊控制系统及其控制方法

Family Cites Families (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE69615534T2 (de) * 1995-10-18 2002-05-02 Sumitomo Metal Ind Stranggiessverfahren und -anlage
DE19627336C1 (de) * 1996-06-28 1997-09-18 Mannesmann Ag Verfahren zum Führen eines Stranges und Strangführung
DE19728957A1 (de) * 1997-06-30 1999-01-07 Mannesmann Ag Verfahren und Vorrichtung zum Erzeugen von Dünnbrammen
JP4057118B2 (ja) * 1997-12-17 2008-03-05 エス・エム・エス・デマーク・アクチエンゲゼルシャフト 連続鋳造設備で薄スラブを製造する方法およびこの方法を実施するための連続体鋳造設備
DE19809807C2 (de) * 1998-03-09 2003-03-27 Sms Demag Ag Anstellverfahren für ein Rollensegment einer Stranggießanlage
DE19836843A1 (de) * 1998-08-14 2000-02-17 Schloemann Siemag Ag Vorrichtung zum hydraulischen Anstellen der Rollen von Strangführungssegmenten einer Stranggießanlage
DE19838774A1 (de) * 1998-08-26 2000-03-02 Schloemann Siemag Ag Strangabzugsverfahren und hiermit korrespondierende Bogenstranggießanlage
US6470957B1 (en) * 1999-07-16 2002-10-29 Mannesmann Ag Process for casting a continuous metal strand
DE10011689A1 (de) * 2000-03-10 2001-09-13 Sms Demag Ag Verfahren zum Stranggiessen von Brammen und insbesondere von Dünnbrammen
AT3953U3 (de) * 2000-06-02 2001-04-25 Voest Alpine Ind Anlagen Strangführungselement und strangführungssegment mit integriertem strangführungselement
AT409465B (de) * 2000-12-12 2002-08-26 Voest Alpine Ind Anlagen Verfahren zum einstellen eines giessspaltes an einer strangführung einer stranggiessanlage
DE10106252A1 (de) * 2001-02-10 2002-08-14 Sms Demag Ag Strangführung einer Stranggiessanlage sowie Anstellverfahren für deren Rollensegmente
DE10141128A1 (de) * 2001-06-01 2002-12-05 Sms Demag Ag Verfahren zum Einstellen der dynamischen Soft Reduction an Stranggießmaschinen
DE10204064A1 (de) * 2001-12-18 2003-07-03 Sms Demag Ag Maulweitenregelung an Segmenten für Stranggießanlagen
DE10236367A1 (de) * 2002-08-08 2004-02-19 Sms Demag Ag Verfahren und Vorrichtung zum dynamischen Anstellen von einen Giessstrang aus Metall, insbesondere aus Stahl, beidseitig stützenden und/oder führenden Rollensegmenten
DE10326904A1 (de) * 2003-06-14 2004-12-30 Sms Demag Ag Verfahren und Stranggießmaschine zum Grundeinstellen und Kontrollieren der Rollenspalte von Rollensegmenten oder Treiberrollenpaaren
DE102004048618A1 (de) * 2004-10-06 2006-04-13 Sms Demag Ag Verfahren und Rollensegment zum Bestimmen der Kernerstarrung und/oder der Sumpfspitze beim Stranggießen von Metallen, insbesondere von Stahlwerkstoffen

Also Published As

Publication number Publication date
EP1893367B2 (fr) 2020-06-10
CN101247908B (zh) 2011-06-08
EP1893367A1 (fr) 2008-03-05
ATE549111T1 (de) 2012-03-15
DE102005028703A1 (de) 2006-12-28
WO2006136484A1 (fr) 2006-12-28
CN101247908A (zh) 2008-08-20

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