EP3715000A1 - Procédé permettant d'éviter les ondulations lors du laminage des bandes métalliques - Google Patents

Procédé permettant d'éviter les ondulations lors du laminage des bandes métalliques Download PDF

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Publication number
EP3715000A1
EP3715000A1 EP19165536.4A EP19165536A EP3715000A1 EP 3715000 A1 EP3715000 A1 EP 3715000A1 EP 19165536 A EP19165536 A EP 19165536A EP 3715000 A1 EP3715000 A1 EP 3715000A1
Authority
EP
European Patent Office
Prior art keywords
metal strip
control device
roll stand
strip
rolling
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
EP19165536.4A
Other languages
German (de)
English (en)
Other versions
EP3715000B1 (fr
Inventor
Klaus Loehe
Andreas Maierhofer
Martin Kerschensteiner
Daniel Kotzian
Matthias Kurz
Mirko TUNK
Daniel Ott
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 Austria GmbH
Primetals Technologies Germany GmbH
Original Assignee
Primetals Technologies Austria GmbH
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 Austria GmbH, Primetals Technologies Germany GmbH filed Critical Primetals Technologies Austria GmbH
Priority to EP19165536.4A priority Critical patent/EP3715000B1/fr
Priority to CN202080025270.1A priority patent/CN113646102B/zh
Priority to JP2021557146A priority patent/JP7277604B2/ja
Priority to PCT/EP2020/055886 priority patent/WO2020193099A1/fr
Priority to US17/598,343 priority patent/US11858021B2/en
Publication of EP3715000A1 publication Critical patent/EP3715000A1/fr
Application granted granted Critical
Publication of EP3715000B1 publication Critical patent/EP3715000B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • B21B37/00—Control devices or methods specially adapted for metal-rolling mills or the work produced thereby
    • B21B37/28—Control of flatness or profile during rolling of strip, sheets or plates
    • B21B37/30—Control of flatness or profile during rolling of strip, sheets or plates using roll camber control
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B37/00—Control devices or methods specially adapted for metal-rolling mills or the work produced thereby
    • B21B37/58—Roll-force control; Roll-gap control
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B38/00—Methods or devices for measuring, detecting or monitoring specially adapted for metal-rolling mills, e.g. position detection, inspection of the product
    • B21B38/02—Methods or devices for measuring, detecting or monitoring specially adapted for metal-rolling mills, e.g. position detection, inspection of the product for measuring flatness or profile of strips
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B2263/00—Shape of product
    • B21B2263/04—Flatness
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B2263/00—Shape of product
    • B21B2263/04—Flatness
    • B21B2263/06—Edge waves
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B2271/00—Mill stand parameters
    • B21B2271/02—Roll gap, screw-down position, draft position
    • B21B2271/025—Tapered roll gap

Definitions

  • the present invention is further based on a control program, the control program comprising machine code that can be processed by a control device for a roll stand, the processing of the machine code by the control device causing the control device to carry out such a control method.
  • the present invention is further based on a control device for a roll stand, the control device being programmed with such a control program so that the control device carries out such a control method during operation.
  • the present invention is further based on a rolling unit, the rolling unit having a rolling stand in which a metal strip is rolled, the rolling unit having such a control device, the rolling stand being controlled by the control device.
  • the present invention is further based on a rolling train, the rolling train having a plurality of rolling stands, the rolling stands being arranged one behind the other as seen in a rolling direction so that the same section of the metal strip traverses them one after the other, with at least one of the rolling stands being designed as such a rolling unit is.
  • lateral position of the metal strip When rolling a metal strip in a roll stand, the lateral position of the metal strip is an important process variable.
  • the lateral position of the metal strip is important when the head of the metal strip is rolled so that the metal strip enters a subsequent device - for example the subsequent roll stand or a coil box - as centrally as possible. Deviations of the lateral position from a target position can lead to disturbances, in extreme cases to a high-walker.
  • a wave can also form in the rolled metal strip. In some cases this happens despite the attempt to approximate the lateral position of the metal strip to the target position, in other cases precisely because of the attempt to approximate the lateral position of the metal tape to the target position.
  • the wave can - depending on the situation of the individual case - occur in the area of the strip edge of the metal strip facing the drive side of the roll stand or in the area of the strip edge of the metal strip facing the operating side of the roll stand.
  • Such waves at least make it more difficult to feed the metal strip to the subsequent device, for example threading the metal strip into a subsequent frame.
  • the waves can lead to a so-called strip doubler (i.e.
  • the cause of the waves in the rolled metal strip can in particular be an asymmetrical inclination of the roll stand, which is unsuitable for the specifically rolled metal strip.
  • measurable and known quantities are, for example, the strip thickness, the strip width, the temperature, the roll grinding, the roll adjustment and others.
  • the non-measurable and also not otherwise known variables are, for example, a thickness wedge in the still unrolled metal strip or a temperature wedge in the still unrolled metal strip and also a deviation of an actual setting of the rolling stand from a target setting.
  • the object of the present invention is to create ways of avoiding waves in the rolled metal strip as far as possible.
  • control method with the features of claim 1.
  • Advantageous refinements of the control method are the subject matter of the dependent claims 2 to 11.
  • control device varies the parameter in such a way that the formation of the shaft is counteracted or an extent to which the wave forms is limited to a predetermined amount.
  • the parameter can be determined as required.
  • the parameter can be a maximum value or a minimum value for the pivot value. It is possible, for example, to set a limit value for the wedge adjustment of the roll stand in the direction at whose strip edge the wave has occurred. For the other direction, it is possible that the limit value there (if such a limit value is present) is retained unchanged. Alternatively, it is possible to set a common absolute limit value for the wedge adjustment of the roll stand for both pivoting directions.
  • the parameter it is possible to determine the parameter so that it does not yet have any influence on the swivel value currently output by the framework controller. This can be particularly useful if the sensitivity in detecting a wave is very high, so that even a very small wave can be detected. In this case it may be sufficient to set the limit value - depending on the swivel direction - to a value slightly above or below the current value. As a rule, however, the control device will set the limit value in such a way that the framework controller must reduce the amount of the current pivot value due to the variation of the parameter.
  • the control device preferably maintains the varied parameter until either the control device varies the parameter again due to a renewed formation of a wave in the metal strip or the tensile state of the metal strip changes or the metal strip is completely rolled in the roll stand.
  • the tensile condition determines whether the metal strip is rolled under tension or rolled without tension.
  • the strip position is recorded on the outlet side and evaluated on a shaft
  • the The area adjoining the strip head is rolled without tension until the strip head runs into a subsequent device, for example is threaded into the subsequent roll stand.
  • the area adjacent to the strip foot is rolled without tension from the moment at which the strip foot has run out of a preceding device, for example, is threaded out of the preceding roll stand.
  • the remaining area of the metal strip can be rolled under tension (this is the rule) or without tension as required.
  • the control device preferably feeds the varied parameter to a database with assignment to data characteristic of the rolled metal strip, so that the varied parameter is available as an initial value for the parameter when rolling another metal strip with the same or sufficiently similar characteristic data.
  • the parameters of the framework controller are set from the outset in such a way that a wave is avoided or the extent of a wave is limited to a predetermined amount. In particular, this prevents a wave from occurring again when a subsequent metal strip of the same type or at least comparable is rolled.
  • the control device can in particular receive groups of images of the metal strip that show the metal strip as it exits the roll stand and / or when it enters the roll stand, the images of the groups each being one for the respective group The time of acquisition.
  • the acquisition of such images by cameras and similar optical acquisition devices is, as already stated above, generally known.
  • the groups only include a single image in each individual case. Even in this case, an evaluation is very reliable. Furthermore, it is possible for the groups of images to be determined in such a way that they enable a three-dimensional determination of the surface of the metal strip. This improves the evaluation even further.
  • the groups of images can include at least one depth image.
  • depth image has a fixed meaning. It is a two-dimensional image, with distance information being assigned to each image point in addition to its arrangement of the associated object determined by the arrangement of the image point in the image, so that the associated object is clearly localized in three-dimensional space.
  • the groups of images can include several two-dimensional images. In this case, a stereoscopic image, that is to say a three-dimensional image, can be generated using the multiple images of the respective group.
  • control device uses the groups of images of the metal strip to determine the at least one variable from which it can be seen for both strip edges of the metal strip whether the metal strip forms a wave in the area of the respective strip edge.
  • control device makes a simple binary decision as to whether a wave is formed on the one strip edge or on the other strip edge.
  • This variant is relatively easy to implement.
  • control device can determine the quantified values, for example, in the form of I-units (also known as flatness index in German). I units are known and familiar to those skilled in the art.
  • the control method according to the invention is carried out in particular during a period of time during which the metal strip is in a tension-free state in front of and / or behind the roll stand - that is, that roll stand on which the stand regulator acts.
  • control program with the features of claim 12.
  • processing of the machine code by the control device causes the control device to carry out a control method according to the invention.
  • control device having the features of claim 13.
  • the control device is programmed with a control program according to the invention, so that the control device executes a control method according to the invention during operation.
  • the rolling unit has a control device according to the invention as the control device.
  • At least one of the roll stands is designed as a roll unit according to the invention.
  • a rolling train has several rolling stands 1. Of the roll stands 1 are in FIG 1 only the work rolls shown. As a rule, however, the roll stands 1 also have at least support rollers, and in some cases additional rollers beyond the support rollers. For example, intermediate rolls can be arranged between the work rolls and the backup rolls.
  • a metal strip 2 is rolled in the rolling train.
  • the roll stands 1 are controlled by a respective stand controller 3a.
  • the stand regulators 3a are part of a respective control device 3b for the respective roll stand 1.
  • the control devices 3b can be coordinated by a higher-level coordination device 3c. But this is not absolutely necessary.
  • the roll stands 1 are arranged one behind the other as seen in a rolling direction x.
  • the roll stands 1 are therefore traversed by the same section of the metal strip 2 one after the other.
  • the metal strip 2 can for example consist of steel or aluminum.
  • the rolling can be hot rolling, for example, in particular in a multi-stand finishing train of a hot rolling mill.
  • FIG 2 shows a single roll stand 1.
  • a metal strip 2 is also rolled.
  • the roll stand 1 can be one of the roll stands 1 of the rolling train from FIG 1 act.
  • a further rolling stand 1 of the rolling train is also shown.
  • this further roll stand 1 is only shown in dashed lines, since it is part of FIG 2 and the further FIG only depends on the roll stand 1 shown in solid lines.
  • the following statements therefore relate to this roll stand 1.
  • it can be a reversing stand in which the metal strip 2 is rolled in a reversing manner.
  • the roll stand 1 may be the only one Be a roll stand in which the metal strip 2 is rolled.
  • the roll stand 1 is - as with the roll stands 1 of FIG 1 - Controlled by a control device 3b with a framework controller 3a, wherein the control device 3b can be superordinated to a coordination device 3c.
  • the control devices 3b are each programmed with a control program 4. This is shown in FIG 1 and FIG 2 only for one of the control devices 3b.
  • the control program 4 comprises machine code 5 which can be processed by the control device 3b.
  • the processing of the machine code 5 by the control device 3b has the effect that the control device 3b controls the roll stand 1 according to a control method which is explained in more detail below. In this case, an operation is first explained as it also occurs in the prior art, and special features according to the invention are discussed later.
  • the control device 3b receives from a detection device 6 - see also a step S1 in FIG FIG 3 - Measurement data M against.
  • the measurement data M is received during the rolling of the metal strip 2 in the roll stand 1.
  • the measurement data M are for a corresponding to the representation in FIG FIG 4 characteristic of a lateral position y of the metal strip 2 existing on the outlet side of the roll stand 1.
  • the control device 3b therefore determines the lateral position y of the metal strip 2 from the measurement data M in a step S2.
  • a pivot value ⁇ s for the roll stand 1 in a step S3 is a function of the deviation of the lateral position y from a target position y * takes place from the approach in such a way that the lateral position y of the metal strip 2 approaches the target position y *.
  • the stand controller 3a controls the roll stand 1 in accordance with the determined pivot value ⁇ s.
  • the framework controller 3a takes into account not only the deviation of the lateral position y from a desired position y *, but also at least one parameter P, usually several parameters P.
  • Parameter P are something other than variables.
  • a variable is a quantity that changes in every cycle of the stand controller 3a.
  • Typical variables are the setpoint y *, the actual value y and the manipulated variable ⁇ s.
  • Parameters P are values that are generally only specified once for the stand controller 3a and are then kept constant during the entire control process - that is, over a large number of cycles.
  • the parameter P can be a proportional gain or an integration time constant.
  • the parameters P can, for example, set a maximum permissible value for the pivot value ⁇ s or a maximum value for the change in the pivot value ⁇ s from cycle to cycle of the framework controller 3a.
  • the maximum permissible value for the pivot value ⁇ s can, if necessary, be specified separately for the two pivot directions.
  • control device 3b corresponds to a normal strip position regulation, as it is generally known and also in detail, for example in FIG EP 3 202 502 A1 is explained.
  • the present invention is based on this approach.
  • the control device 3b determines in a step S5 at least one variable V1, V2, Q1, Q2 from which for both strip edges 7, 8 of the metal strip 2 (see FIG FIG 4 ) shows whether the metal strip 2 in the area of the respective strip edge 7, 8 has a wave 9 (see FIG 5 ) trains.
  • the control device 3b uses the at least one variable V1, V2, Q1, Q2 to check whether and, if so, at which strip edge 7, 8 the metal strip 2 forms a wave 9.
  • step S6 If the test in step S6 is negative, that is to say no wave 9 is recognized, a step S7 is skipped. If, on the other hand, the test of step S6 is positive, that is, a shaft 9 is recognized, the control device 3b goes to step S7. In step S7, the control device 3b varies at least one of the parameters P of the stand controller 3a. From this point in time, i.e. from the variation of the at least one parameter P, the framework controller 3a determines the pivot value ⁇ s taking into account the varied parameter P.
  • the control device 3b varies the parameter P in such a way that the formation of the shaft 9 is counteracted or an extent h to which the shaft 9 is formed is limited to a predetermined amount.
  • the control device 3b can vary that parameter P which defines the maximum permissible value for the pivot value ⁇ s. In particular, this value can be reduced in terms of amount based on its currently valid value. The variation can alternatively be carried out for both pivoting directions or only for that pivoting direction which is responsible for the shaft 9 that has occurred.
  • the determination of the pivot value ⁇ s takes place within the scope of the present invention, taking into account whether the metal strip 2 is a shaft in the area of one of its strip edges 7, 8 9 trains.
  • the control device 3b retains the varied parameter P in the further course until a special event occurs, on the basis of which the value of the corresponding parameter P is varied again.
  • a special event consists in the fact that despite the just mentioned variation of the parameter P at one of the strip edges 7, 8, a shaft 9 is again detected.
  • the amount of the parameter P is reduced only for the respective pivoting direction, such a special event is that, despite the variation just mentioned of the parameter P at the same strip edge 7, 8 as before a wave 9 is detected again.
  • Other special events are a change in the rolling process.
  • the control device 3b checks in a step S11 whether the tension state Z of the metal strip 2 has changed.
  • the tension state Z changes in particular when a transition is made from rolling the metal strip 2 under tension to rolling the metal strip 2 without tension or, conversely, from rolling the metal strip 2 without tension to rolling the metal strip 2 under tension.
  • a change from rolling the metal strip 2 without tension to rolling the metal strip 2 under tension generally occurs in particular when a strip head 11 of the metal strip 2 runs into a downstream device, for example, in a multi-stand rolling mill, it is threaded into the following roll stand 1 .
  • control device 3b can check in a step S12 whether the metal strip 2 has been completely rolled in the roll stand 1.
  • the parameters P can be redefined in a step S13.
  • Step S21 is carried out when the control device 3b varies the at least one parameter P.
  • the control device 3b feeds the varied parameter P with assignment to data D characteristic of the rolled metal strip 2 in a database DB (see FIG FIG 2 ) to.
  • the control device 3b checks before the rolling of a respective metal strip 2 in step S22 using characteristic data D for the new metal strip 2 to be rolled whether in the database DB for such a metal strip 2 or a metal strip 2 with sufficiently similar characteristic data D parameters P are already stored. If such parameters P are stored, the control device 3b can call up these parameters P as initial values from the database DB in step S23. Otherwise, the control device 3b can set standard values for the parameters P in step S24.
  • the measurement data M can be determined as required.
  • the detection device 6 is also designed accordingly.
  • the detection device 6 is preferably configured as a single camera 7 or - see FIG 4 - Be designed as a group of cameras 10.
  • the measurement data M are images B or groups of images B.
  • the groups of images B each comprise only a single image B.
  • the respective image B is related to a respective acquisition time.
  • the detection device 6 can, however, also be designed as a group of cameras 10.
  • the cameras 10 each capture their own image B.
  • the individual cameras 10 each capture their respective image B at a uniform capture time.
  • the images B of the respective group are related to a respective uniform capture time.
  • the control device 3b preferably utilizes the groups of images B not only in the context of step S2, i.e. in the context of determining the lateral position y of the metal strip 2. Rather, the control device 3b preferably utilizes the groups of images B in the context of step S5 for determination the at least one size V1, V2, Q1, Q2, from which it can be seen for both strip edges 7, 8 of the metal strip 2 whether the metal strip 2 forms a wave 9 in the region of the respective strip edge 7, 8.
  • the groups of images B can each comprise more than one image B.
  • the control device 3b can preprocess the images B acquired at a uniform acquisition time in such a way that it determines the three-dimensional surface of the metal strip 2.
  • the control device 3b evaluates the determined three-dimensional surface of the metal strip 2 in step S5. It is also possible that only a single image B is captured per group of images B, but the individual image B already contains the required three-dimensional information . In this case, the corresponding image B is a so-called depth image. In this case too, the control device 3b utilizes the three-dimensional surface of the metal strip 2 in step S5.
  • step S5 i.e. to determine the at least one variable V1, V2, Q1, Q2, from which it can be seen for both strip edges 7, 8 of metal strip 2 whether metal strip 2 forms a wave 9 in the area of the respective strip edge 7, 8
  • the control device 3b can according to the representation in FIG 8
  • step S31 as part of the evaluation of the respective group of images B for the one strip edge 7, 8 of the metal strip 2, determine the extent of a corrugation 9 in which the metal strip 2 forms the corrugation 9 in the area of the strip edge 7, 8.
  • the control device 3b can determine the height h of the shaft 9.
  • the control device 3b executes an algorithm in the broader sense.
  • the control device 3b can be programmed with a learning algorithm (machine learning algorithm), the learning algorithm in a learning phase in advance - that is, before the Execution of the tax procedure of FIG 3 A large number of groups of images B are specified and, in addition to the respective group of images B, the associated extent, for example the height h of the shaft 9, is communicated so that the control device 3b could "learn" the correct evaluation.
  • the control device 3b can also be supplied with Boolean information derived from the extent. As part of the later operation - i.e.
  • the learning algorithm is only given the respective group of images B, and the control device 3b determines the associated extent or the Boolean information derived therefrom by means of the learning algorithm.
  • the control device 3b can also be supplied with other information as part of the learning process, for example control interventions by operators when rolling the metal strip 2.
  • a step S32 the control device 3b checks whether the determined extent exceeds a predetermined threshold value SW. If this is the case, the control device 3b sets a Boolean variable V1 to the value TRUE in a step S33. Otherwise, the control device 3b sets the Boolean variable V1 to the value FALSE in a step S34.
  • control device 3b determines the value of a Boolean variable V2 for the other strip edge 8 in a completely analogous manner.
  • the Boolean variables V1, V2 are the at least one variable from which it can be seen whether the metal strip 2 is in the area of the respective Belt edge 7, 8 forms a wave 9.
  • a variable with at least three values could of course also be used.
  • the value +1 could be used for a shaft 9 on one belt edge 7, the value -1 for a shaft 9 on the other belt edge 8 and the value 0 for no shaft 9.
  • step S41 the control device 3b determines a quantified value Q1 for the extent determined in step S31.
  • the control device 3b takes over the extent determined in step S31 in step S41.
  • step S41 the control device 3b preferably determines the associated I-unit of the metal strip 2 in the region of the strip edge 7, 8 using the extent determined in step S31 as the quantified value Q1.
  • control device 3b determines in step S42 a quantified value Q2 for the extent determined in step S35.
  • the quantified values Q1, Q2 therefore represent the at least one variable from which it can be seen whether the metal strip 2 forms a wave 9 in the area of the respective strip edge 7, 8.
  • a uniform variable could, of course, also be used, for example, with a positive value the height h of the corrugation 9 at one band edge 7 and with a negative value the height h of the corrugation 9 at the other band edge 8 indicates.
  • FIG 4 Figures B show the metal strip 2 on the outlet side of the roll stand 1 in a stress-free state.
  • a configuration of the roll stand 1 as a pure reversing stand this is the case anyway.
  • the multi-stand rolling mill from FIG 1 this results for the time range in which the strip head 11 of the metal strip 2 has already passed through the roll stand 1, but has not yet reached the further roll stand 1 shown in dashed lines. If, for example, coil boxes or similar devices are arranged upstream and downstream of the roll stand 1, this applies in each case up to the point in time at which the strip head 11 reaches the respective coil box. Analogous statements apply to the belt foot.
  • the present invention has been explained above in connection with a detection of the lateral position y on the outlet side of the roll stand 1. This represents the normal case of the present invention. Alternatively or additionally, however, it is also possible to carry out the procedure with regard to the entry side of the roll stand 1.
  • the present invention has many advantages.
  • not only an error in the tape run, but also an error when throwing a shaft 9 can be recognized and corrected.
  • the detection of waves 9 as such in the captured images B can be implemented without any problems.
  • the procedure according to the invention can be used in particular for the automated optimization of the operation when threading the metal strip 2 into a subsequent roll stand 1 or generally when the metal strip 2 enters a subsequent device.
  • the necessary hardware for capturing and utilizing the images B is usually available anyway, so that only the costs for the associated software are incurred.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Control Of Metal Rolling (AREA)
  • Length Measuring Devices By Optical Means (AREA)
  • Metal Rolling (AREA)
EP19165536.4A 2019-03-27 2019-03-27 Procédé permettant d'éviter les ondulations lors du laminage des bandes métalliques Active EP3715000B1 (fr)

Priority Applications (5)

Application Number Priority Date Filing Date Title
EP19165536.4A EP3715000B1 (fr) 2019-03-27 2019-03-27 Procédé permettant d'éviter les ondulations lors du laminage des bandes métalliques
CN202080025270.1A CN113646102B (zh) 2019-03-27 2020-03-05 在轧制金属带时避免卷曲
JP2021557146A JP7277604B2 (ja) 2019-03-27 2020-03-05 金属ストリップの圧延に際する起伏の防止
PCT/EP2020/055886 WO2020193099A1 (fr) 2019-03-27 2020-03-05 Prévention de la formation d'ondes lors du laminage de bandes métalliques
US17/598,343 US11858021B2 (en) 2019-03-27 2020-03-05 Preventing undulations when rolling metal strips

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP19165536.4A EP3715000B1 (fr) 2019-03-27 2019-03-27 Procédé permettant d'éviter les ondulations lors du laminage des bandes métalliques

Publications (2)

Publication Number Publication Date
EP3715000A1 true EP3715000A1 (fr) 2020-09-30
EP3715000B1 EP3715000B1 (fr) 2022-01-12

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EP19165536.4A Active EP3715000B1 (fr) 2019-03-27 2019-03-27 Procédé permettant d'éviter les ondulations lors du laminage des bandes métalliques

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US (1) US11858021B2 (fr)
EP (1) EP3715000B1 (fr)
JP (1) JP7277604B2 (fr)
CN (1) CN113646102B (fr)
WO (1) WO2020193099A1 (fr)

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63171213A (ja) * 1987-01-08 1988-07-15 Mitsubishi Heavy Ind Ltd 圧延材の蛇行量検出方法
WO2006063948A1 (fr) 2004-12-15 2006-06-22 Siemens Aktiengesellschaft Procede de fonctionnement pour un train de laminoir et dispositifs correspondants
EP2258492A1 (fr) * 2009-06-02 2010-12-08 Siemens Aktiengesellschaft Procédé de fabrication d'un produit de laminage à l'aide d'une chaîne de laminage, dispositif de commande et/ou de réglage d'une chaîne de laminage, installation de laminage destinée à la fabrication de produits de laminage laminés, code de programme lisible sur machine et support de stockage
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CN113646102B (zh) 2023-08-11
US20220250128A1 (en) 2022-08-11
JP2022526923A (ja) 2022-05-27
EP3715000B1 (fr) 2022-01-12

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