EP1230992A2 - Procédé pour faire fonctionner un train de laminoir et système de commande pour train de laminoir - Google Patents

Procédé pour faire fonctionner un train de laminoir et système de commande pour train de laminoir Download PDF

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Publication number
EP1230992A2
EP1230992A2 EP02000920A EP02000920A EP1230992A2 EP 1230992 A2 EP1230992 A2 EP 1230992A2 EP 02000920 A EP02000920 A EP 02000920A EP 02000920 A EP02000920 A EP 02000920A EP 1230992 A2 EP1230992 A2 EP 1230992A2
Authority
EP
European Patent Office
Prior art keywords
rolling
roll
stand
setpoint
profile
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.)
Withdrawn
Application number
EP02000920A
Other languages
German (de)
English (en)
Other versions
EP1230992A3 (fr
Inventor
Ralf Hartmann
Detlef Breunung
Otmar Dr. Palzer
Hans-Jürgen Reismann
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.)
SMS Siemag AG
Original Assignee
SMS Demag AG
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 SMS Demag AG filed Critical SMS Demag AG
Publication of EP1230992A2 publication Critical patent/EP1230992A2/fr
Publication of EP1230992A3 publication Critical patent/EP1230992A3/fr
Withdrawn legal-status Critical Current

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B37/00—Control devices or methods specially adapted for metal-rolling mills or the work produced thereby
    • B21B37/16—Control of thickness, width, diameter or other transverse dimensions
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B1/00—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations
    • B21B1/08—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling structural sections, i.e. work of special cross-section, e.g. angle steel
    • B21B1/088—H- or I-sections
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B1/00—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations
    • B21B1/08—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling structural sections, i.e. work of special cross-section, e.g. angle steel
    • B21B1/095—U-or channel sections

Definitions

  • the invention relates to a method for operating a rolling mill for profiled rolling stock, in which the rolling stock is divided by a number in one rolling direction successive, each comprising a number of work rolls Roll stands is performed, each roll stand with regard to its operating parameters is set to a number of setpoints. It continues to affect a control system for such a rolling mill.
  • a number of rolling stands can be used in a rolling mill to roll a rolling stock are used.
  • the roll stands are for the passage of a usually elongated rolling stock and provided in one also seen as the direction of rolling of the rolling stock arranged in series or in succession.
  • a rolling mill with one A plurality of such roll stands can be used in particular when machining one profiled rolling stock are used.
  • the profiled rolling stock can in particular have a so-called "heavy profile” and for example as U-profile or be designed as a so-called double-T beam.
  • Universal mill stands When processing such profiled rolling stock usually come so-called universal frameworks are used at least in part.
  • Form the vertical rollers one roll gap each, which rolls horizontally together with the bale length is decisive for the overall width of the resulting double-T beam.
  • each roll stand When operating a rolling mill with such rolling stands, especially with Universal stands, each roll stand is usually used for a number of its Operating parameters are loaded with setpoints that are selected such that the finished rolled product comes as close as possible to a target profile.
  • Setpoints can be specified directly for the manipulated values with which the actuating elements of the roll stand are acted upon, for example a control value for a hydraulic pressure for setting a desired rolling force or a control value for a desired positioning of a roller.
  • rolling mills can also have setpoints for derived, comparatively complex ones Operating parameters such as the roll gap are specified as such, such a setpoint in a subordinate regulation in suitable control values for the actual operating parameters are implemented.
  • the finished rolled product can be used with regard to the target profile for a highly precise production of the rolling stock comparatively narrow boundary conditions or are subject to tolerance limits.
  • Compliance is comparatively difficult narrow tolerance limits, among other things, during external influences which may change during the rolling process, for example the environmental conditions or the properties of the incoming rolling stock. It is therefore customary to comply with comparatively narrow tolerance limit values continuous monitoring of the rolling process and occasional intervention of the operating team in an assigned regulation. However, only a limited accuracy can be achieved.
  • Compliance with comparatively narrow tolerance limits is the production of such profiled rolling stock is also particularly complex.
  • the invention is therefore based on the object of a method for operating a Rolling mill of the type mentioned above, which is comparatively low Manufacturing effort compliance with particularly narrow tolerance limits enabled in the production of a profiled rolling stock. Furthermore, one for the Implementation of the method suitable control system for such Rolling mill can be specified.
  • this object is achieved according to the invention by the Profile of the rolling stock emerging from the rolling mill is determined and with a Target profile is compared, the or each target value of the or each roll stand with reference to a framework-specific weighting factor the deviations of the determined profile from the target profile with a correction target value is applied.
  • the invention is based on the consideration that especially for compliance narrow tolerance limits for the profile of the rolling stock this profile continuously should be monitored, with an evaluation made as soon as possible, especially taken into account directly in the ongoing rolling process should be. This can result in deviations in the profile actually produced of the specified target profile is still taken into account during the production of the rolling stock and compensated by specifying suitable correction values for the target values become.
  • the correction values can be specified as additional setpoints and be taken into account in the regulation as soon as suitable measured values for the actual profile.
  • the activation of the additional setpoints can be synchronized in length, by specifying an additional setpoint for a comparable one Roll length position, or synchronous, i.e. by specifying an additional setpoint for different roll stands at the same time.
  • the invention takes into account in particular the finding that exceeding tolerances Deviations in the manufactured profile of the rolling stock from different Sources come from each of the rolling stands running through and can be accumulated in the product running out of the rolling mill. Such accumulated contributions to the deviation from the target profile should be particularly important simple means and especially using only one only measuring system suitable for determining the actual profile of the rolling stock produced can be compensated. This is a breakdown of the total existing deviation from the target profile required corrective measures to the individual roll stands, taking into account empirical values from previous rolling processes or including system-specific ones Expertise in the individual roll stands provided.
  • weighting factors can especially in the form of a "learning function" or as a self-optimizing one Function designed and continuous, at regular intervals or if necessary with regard to new experiences from previous rolling processes be supplemented.
  • the output of correction values for the target values can in particular be comparative promptly, in the manner of an "online update".
  • the already rolled area (“rolling stock head") already for one Evaluation is available, a tracking of the setpoints for the still unfinished part.
  • the method is particularly suitable for operating a rolling mill for production of double-T beams.
  • a rolling mill comprises at least some so-called universal scaffolds, each of which is a couple of horizontal as well as a couple of vertical rolls.
  • the target values for the operating parameters of the web thickness, the Flange height and / or the flange thickness of the rolling stock by applying suitable correction setpoints for compliance with particularly narrow tolerance limit values optimized.
  • the profile of a double-T beam can be created namely describe essentially by a central web at the end each flanges extending transversely thereto are formed. Because of the web thickness, the flange height and the flange thickness of the double T-beam is therefore this essentially completely described.
  • the adjustment of the web thickness can in particular by setting a corresponding roll gap between the horizontal rollers of the universal scaffold.
  • the universal scaffold can be controlled in such a way that a setpoint is specified for a web thickness is that this setpoint, however, within one of the universal framework assigned actuator in suitable derived operating parameters, such as Position values for the individual horizontal rollers implemented becomes.
  • the respective framework-specific weighting factor Specified depending on the rolling stock. This takes into account the additional knowledge borne that the contribution of a single roll stand to the total deviation the profile actually produced from the target profile of the rolling stock is not exclusively from the position of the respective mill stand in the rolling mill, but rather can also depend on the type of rolling stock to be produced.
  • the correction setpoint applied to the respective setpoint for a roll stand , and in particular the scaffold-specific basis on which it is based Weighting factor is thus with regard to the type of rolling stock to be produced specified.
  • the horizontal rollers of a roll stand interacting in pairs can be employed together. This results in an even, symmetrical Loading of the rollers interacting in pairs with a manipulated variable, for example a set pressure. This automatically results in a central one Alignment with a reference plane. Deviating from this, however in one or more of the roll stands, the two interacting in pairs Horizontal rollers must be employed separately.
  • the rollers are therefore independent of one another positionable so that the absolute location of what they have formed Change the roll gap with respect to a reference plane, for example the roll plane leaves.
  • the roll stands the rolls of which are independent of each other on the basis of roll-specific Setpoints are operable, the or each setpoint of a roller Reference to a roll-specific weighting factor based on the deviations of the determined profile from the target profile with a correction setpoint.
  • the concept is based on the roll-specific weighting factors compensation of rolling errors close to the source not only between the Roll stands, but also within a single stand between them maintain independently adjustable rollers.
  • the or each correction setpoint is expediently set to a parameter-specific one Maximum value limited.
  • Continuing education becomes a correction setpoint for horizontal adjustment of a roll stand and a correction setpoint for a vertical adjustment of a Roll stand specified, the ratio of these correction setpoints to one specifiable maximum value is limited.
  • the or each correction setpoint and in particular the stand-specific weighting factor is advantageously based on the rolling result given previous rolling processes. For example a large number of previous rolling results were evaluated with regard to this what characteristic values of the roll stands relative to each other have been too special favorable or particularly unfavorable rolling results with regard to have the profile of the rolling stock.
  • a so-called Reverse rolling processes are used. This goes through Rolled stock in the rolling mill a number of successive rolling stands in the kind of a pendulum motion several times. After the first run through the respective roll stands, the rolling stock is stopped and vice versa Direction again through the respective mill stands. This can be for a predeterminable Number of passes, also referred to as stitches, are repeated, until the rolling stock for further processing or a final rolling step is finally fed to another part of the rolling mill.
  • Such a multiple pass of the rolling stock can be an interim Determination of the present profile with regard to a target profile to be achieved and a derived tracking of the setpoints for the multiple runs Roll stands particularly helpful with regard to maintaining tight Tolerance limits.
  • the correction setpoint takes the form of an adaptation from a first contribution, for a previous rolling stock and doing so is the same stitch or pass, and from a second amount, the for the rolling stock and a previous pass or Stitch is characteristic, together.
  • Such an adaptation is therefore related to the roll pass and can also be related to the rolling stock be designed.
  • the adaptation enables a special one quick reaction or compensation in the event of rolling errors.
  • the wall profile of the rolling stock present after each pass can be seen in the rolling direction on both sides of the multiple passes
  • a measuring device for determining the contour of the rolling stock is arranged in the rolling stands his.
  • Measuring device provided, which is expedient in the original rolling direction seen after the last of the rolling stands to be run several times is arranged.
  • the opposite direction i.e. the x + 1st stitch or pass, is particularly error-free
  • the specified task is solved with a control unit that a Control element assigned to the rolling stand has a setpoint for an operating parameter specifies, and the input side with a measuring device for determining a profile characteristic of the rolling stock and connected to a storage module is, wherein the control unit with reference to the target value of the respective roll stand to a framework-specific weighting factor stored in the memory module on the basis of the deviations of the determined profile characteristic value from a target profile characteristic value with a correction setpoint.
  • the product rolled out of the rolling mill is accumulated in the Form of a total deviation of existing rolling defects taking into account from plant-specific expertise to individual contributions from individuals Roll stands or individual rolls returned.
  • the weighting factors or their respective amounts can in particular by rolling technology Expertise is determined and also limited. It is also comparative a particularly precise compensation of the error contributions with little effort enables so that particularly narrow tolerance limits in the manufacture of the profiled rolling stock can be maintained. This also makes the necessary Interventions by the operating personnel are kept particularly low, and moreover also a comparatively frequent sampling on the rolling stock is not necessary is. As a result, the downtimes of the rolling mill are also due to Tolerance violations are kept low, so that the rolling mill as a whole can have particularly high throughput.
  • the rolling train 1 shown only partially in FIG. 1 is for the production of a profiled rolling stock provided.
  • the rolling mill 1 comprises a plurality from in a direction of advance or rolling direction symbolized by arrow 2 successive rolling stands, of which only a first one in FIG. 1 Roll stand 4, a second roll stand 6 and a third roll stand 8 each are indicated are represented by their rollers.
  • the rolling stands 4, 6, 8 can further roll stands before or within the rolling mill 1 downstream.
  • the first roll stand 4 in Rolling direction x seen a rough or roughing stand before and the third stand 8 seen in the rolling direction x a fine rolling mill downstream.
  • the roll stands 4 and 8 are in the exemplary embodiment according to FIG. 1 as so-called Universal scaffolding designed.
  • the first roll stand 4 includes a Pair of vertically stacked horizontal rollers 10, 12, together a roll gap extended in the vertical direction for the to be carried out Form rolling stock.
  • the horizontal rollers 10, 12 are over roller axes 14 or 16 rotatably supported in scaffolding elements in a manner not shown.
  • the first roll stand 4 comprises a pair of vertical rolls 18, 20 which offset laterally from the guideway for the rolling stock between the horizontal rolls 10, 12 are arranged.
  • the vertical rollers 18, 20 each form one Roll gap, on the one hand by its tread and on the other hand by the side surfaces the horizontal rollers 10, 12 is limited.
  • the first roll stand designed as a universal stand, is 4 shown schematically in section in FIG. 2.
  • the horizontal rolls 10, 12 form a roll gap 30 which is the web thickness a continuous double T-beam determined as rolling stock.
  • the horizontal roller 10 is with its roller axis 14 in each end in a hydraulic cylinder unit 32 or 34 stored.
  • the hydraulic cylinder units 32, 34 are in not shown in detail on a scaffold stand and fixed for adjustment a working medium can be applied to a roller position.
  • the application of the hydraulic cylinder units 32, 34 takes place via a in FIG. 2 Not shown actuator that the pressure of the working medium in the Hydraulic cylinder units 32, 34 depending on a predetermined input value established.
  • the input value can be a target position for the horizontal roller 10 or a target value for a rolling force with which the horizontal roller 10 acts on a rolling stock guided through the roll stand 4.
  • the second horizontal roller 12 is of an analogous configuration over its roller axis 16 each end mounted in a hydraulic cylinder unit 36 or 38.
  • the vertical rollers 18, 20 are on both sides of the horizontal rollers 10, 12 and arranged between their roller axes 14, 16.
  • the Vertical rollers 18, 20 each form together with those assigned to them Side surfaces of the horizontal rollers 10, 12 a horizontally extended nip 39, with both nips 39 together with the bale length of the horizontal rolls 10, 12 the width B of the rolling stock passed through the roll stand 4 specify.
  • the vertical rollers 18, 20 are each via a holder element 40 or 42 and a hydraulic cylinder unit 44 or 46 associated therewith on one Roll stand stored.
  • That seen in the rolling direction x between the first roll stand 4 and the third Roll stand 8 switched second roll stand 6 only includes in the embodiment a pair of horizontal rollers 50, 52.
  • the horizontal rollers 50, 52 are seen longer in its longitudinal direction than the horizontal rollers 10, 12, 22, 24 of the first roll stand 4 or the third roll stand 8.
  • the part of the rolling train 1 shown in FIG. 1 is for production of a rolled stock profiled as a double-T beam.
  • Profile 54 of such a double-T beam is in Fig. 3, specifying the relevant parameters shown.
  • the profile 54 of the double-T beam has in his Center region on a web 56, which is characterized by its web width S.
  • a flange 58 or 60 is formed on each end of the web 56.
  • Any flange 58, 60 is characterized by its flange height, which in Fig. 3 by the Double arrow 62 is indicated.
  • the flanges 58, 60 are by their respective Characterized flange thickness FD.
  • the positioning of the web 56 is then also used relative to the top or bottom edge of the flanges 58, 60. This positioning is characterized by the position L.
  • the web width S of the web 56 is essentially determined by the Roll gap 30 of the horizontal rolls 10, 12 of the first roll stand 4 or of the horizontal rolls 22, 24 of the third roll stand 8.
  • the rolled product is in particular the roll gap of the horizontal rolls 22, 24 of the last time passed through mill stand 8.
  • the width B of the profile 54 is given by the sum of the roll gaps 39 of the vertical rolls 18, 20 of the first roll stand 4 or the vertical rolls 26, 28 of the third roll stand 8, plus the bale length of the respective horizontal rollers 10, 12 or 22, 24.
  • the final width B of the rolled profile 54 is essentially determined by the mentioned parameters of the last run third roll stand 8.
  • the flange height FH is in turn essentially determined through the roll gap of the horizontal rolls 50, 52 of the second roll stand 6.
  • the rolling mill 1 is for a particularly precise compliance with a given Target profile, i.e. for compliance with particularly low tolerance limit values, at the Production of a profiled rolling stock designed.
  • the Walzstrasse 1 is a Control system 70 assigned.
  • Control system 70 includes a central one Control unit 72, the output side with a number of actuating elements 74, 76, 80 for the roll stands 4, 6, 8 is connected.
  • the control unit is on the input side 72 with a measuring device 82 for determining a profile characteristic of the Rolled goods connected.
  • the control unit 72 is a memory module 84, which the control unit 72 accesses for reading out or storing data can, as well as an input-output module 86, for example a personal computer, assigned.
  • the actuating element 74 is assigned to the first roll stand 4.
  • the actuator 74 gives control values to the hydraulic cylinder units 32, 34, 36, 38, 46, 48 of the a total of four horizontal rolls 10, 12 and vertical rolls 18, 20 of the first Roll stand 4 out. This is indicated by the four outgoing arrows.
  • the control element 74 is in sub-groups or Structured modules, each one of the horizontal rollers 10, 12 or the vertical rollers 18, 20 is assigned. This is analogous to this the third rolling stand 8 is assigned the control element 80.
  • the roll stand 6 has two independently of mutually adjustable horizontal rollers 50, 52. Accordingly, in the embodiment each horizontal roller 50, 52 has a module of the actuating element 76 assigned.
  • the control unit 72 gives setpoints SW for the operating parameters of the roll stands 4, 6, 8 to the actuating elements assigned to them 74, 76, 80 from.
  • the control unit 72 is responsible for the profile 54 characteristic parameters designed as reference variables.
  • the parameters relating to the horizontal rolls 10, 12 are coupled, the setting of the roll gap 30 being substantially symmetrical a reference plane predetermined by the rolling stock plane.
  • the application the horizontal rollers 10, 12 thus take place with a single, coupled one Setpoint SW for the roll gap 30, as indicated by the bracket between is symbolized in the first two modules.
  • the control unit 72 outputs, for example the control element 74 assigned to the first roll stand 4 has a target value for the by the horizontal rolls 10, 12 formed nip 30 and one each further setpoint SW for each vertical roller 18, 20.
  • the control element 74 is in the manner of a subordinate controller hierarchy level to convert these setpoints into suitable manipulated variables for the assigned first roll stand 4 formed. Based on the supplied setpoints SW, the control element 74 thus converts the setpoint for the operating parameter "Roll gap 30" (corresponding to the web thickness S of the double-T beam) in suitable control values for the positioning of the horizontal rollers 10, 12 and / or their rolling forces around. These control values can be set within the control element 74 in the type of a further subordinate rule hierarchy again in suitable Control values for the actual control variable, namely in particular the pressure of the working medium in the hydraulic cylinders 32, 34, 36, 38, are implemented. In Analogously, the control unit 72 gives setpoints SW for the roll gap of the horizontal rolls 22, 24 and the vertical rollers 26, 28 to the third roll stand 8 assigned actuator 80 from.
  • the control unit 72 outputs setpoints SW for the vertical to the actuating element 76 Positioning of the respective horizontal roller 50, 52.
  • the control element 76 in an analogous manner, initially a conversion of the supplied setpoints SW into the actual control values, namely in particular the pressures for the supplied Hydraulic cylinder.
  • Control unit 72 for a result-oriented correction of the target values SW taking into account based on experience with previous rolling processes.
  • the profile is measured via the measuring device 82 during operation of the rolling mill 1 of the rolling stock running out of the third roll stand 8 is determined, for example based on a profile characteristic or a plurality of profile characteristics.
  • the profile parameters can in particular be measured values for the actually present Web thickness S, the actual flange height FH and / or the actual one existing flange thicknesses FD.
  • the thus determined profile of the expiring Rolled stock is controlled by the control unit 72 with, for example, a Storage module 84 stored target profile for the rolling stock being compared.
  • each roll stand 4, 6, 8 can contribute to a deviation and thus to a rolling error independently of the others.
  • all such error contributions are present in a cumulative form in the rolling stock running out of the third roll stand 8 and are therefore also accumulated by the measuring device 82.
  • the control unit 72 is designed for weighted compensation of the accumulated rolling error determined by the measuring device 82.
  • the compensation of the rolling error is therefore carried out by modifying the setpoints SW, with each setpoint SW being subjected to a correction setpoint K i on the basis of the discrepancy between the actual state and the setpoint state and taking into account a stand-specific weighting factor.
  • the presetting part of the correction setpoint K i provided for the modification of the setpoint SW for the ith mill stand 4, 6, 8 depends on the one hand on the deviation of the actual state from the setpoint condition on the rolled stock and on the other hand also on one each roll stand 4, 6, 8 specifically assigned weighting factor W i .
  • the stand-specific weighting factors W i which are stored in an updated form on the storage module 84, contain experience from the relative error proportion of the respective roll stand 4, 6, 8 in past rolling processes. Furthermore, the type and type of the rolling stock is taken into account in the weighting factors W i . In other words: for each type of rolling stock, a separate, individual set of stand-specific weighting factors W i for the rolling stands 4, 6, 8 is stored in the storage module 84.
  • the weighting factors W i are regularly updated in the manner of a "learning function", with new or additional experiences from recent rolling results being incorporated.
  • the actuating element 74 is connected to the memory module 84 in a manner not shown in order to take the roller-specific weighting factors W i into account. The same also applies to the adjusting elements 76, 80.
  • the part of the rolling mill 1 shown in the exemplary embodiment according to FIG. 1 is especially for use in a so-called rev rolling process for profiled Suitable for rolling stock. Passes through in such a reves rolling process the rolling stock the roll stands 4, 6, 8 several times. This occurs on the first pass Rolled stock in the first roll stand 4 and passes through the one after the other Roll stands 4, 6, 8. After emerging from the third roll stand 8, the Rolled material stopped and in the opposite direction through the roll stands 8, 6, 4 guided. For each such run, referred to as the "stitch", the corresponding runs Operating parameters of the roll stands 4, 6, 8 readjusted, whereby in particular a gradual reduction of the roll gaps for so long until an overall intended thickness or width reduction occurs is. After completing this multiple in the manner of a pendulum-like movement In the end, the rolling stock ends in the original rolling direction the third roll stand 8 and can be fed to a further treatment.
  • a timely update of the setpoints SW by the control unit 72 is helpful with regard to a particularly precise rolling result.
  • the actual profile can be determined in particular each time the rolling stock passes the measuring device 82, depending on the passage or pass, and compared with the target profile for the respective pass or pass. This means that deviations from the target condition can be recognized and compensated for early on in the rolling stock being processed during the rolling process.
  • the correction values K i for the desired values SW are determined in the control unit 72 for the upcoming run on the basis of the results of the previous runs.
  • the result of the immediately preceding run is of particular importance.
  • the weighting factors W i take into account on the one hand the contribution of the respective roll stand 4, 6, 8 to the rolling error that has occurred, but on the other hand also take special account of the passage just undertaken or to be carried out.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Control Of Metal Rolling (AREA)
  • Metal Rolling (AREA)
EP02000920A 2001-02-13 2002-01-16 Procédé pour faire fonctionner un train de laminoir et système de commande pour train de laminoir Withdrawn EP1230992A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10106527A DE10106527A1 (de) 2001-02-13 2001-02-13 Verfahren zum Betreiben einer Walzstraße sowie Steuerungssystem für eine Walzstraße
DE10106527 2001-02-13

Publications (2)

Publication Number Publication Date
EP1230992A2 true EP1230992A2 (fr) 2002-08-14
EP1230992A3 EP1230992A3 (fr) 2004-10-13

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US (1) US6601422B2 (fr)
EP (1) EP1230992A3 (fr)
JP (1) JP2002282916A (fr)
DE (1) DE10106527A1 (fr)

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EP2014380A1 (fr) * 2007-06-11 2009-01-14 ArcelorMittal France Procédé de laminage d'une bande métallique avec régulation de sa position latérale d'une bande et laminoir adapté
DE102008007247A1 (de) * 2007-09-13 2009-03-19 Siemens Aktiengesellschaft Betriebsverfahren für eine Walzstraße mit Krümmungserkennung
EP2460597A1 (fr) * 2010-12-01 2012-06-06 Siemens Aktiengesellschaft Procédé de commande d'une voie de laminage en tandem, dispositif de commande et/ou de réglage pour une voie de laminage en tandem, code de programme lisible par machine, support de stockage et voie de laminage en tandem
JP6441159B2 (ja) * 2015-04-27 2018-12-19 三菱重工業株式会社 圧延加工装置
AU2020244877A1 (en) * 2019-03-27 2021-10-14 Sgs North America Inc. Device for test milling an ore sample

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EP1230992A3 (fr) 2004-10-13
JP2002282916A (ja) 2002-10-02
DE10106527A1 (de) 2002-08-29
US20020112514A1 (en) 2002-08-22

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