EP1278606A1 - Procede et dispositif permettant d'enrouler un feuillard lamine a chaud dans une position correcte, dans un dispositif d'enroulement - Google Patents

Procede et dispositif permettant d'enrouler un feuillard lamine a chaud dans une position correcte, dans un dispositif d'enroulement

Info

Publication number
EP1278606A1
EP1278606A1 EP01962413A EP01962413A EP1278606A1 EP 1278606 A1 EP1278606 A1 EP 1278606A1 EP 01962413 A EP01962413 A EP 01962413A EP 01962413 A EP01962413 A EP 01962413A EP 1278606 A1 EP1278606 A1 EP 1278606A1
Authority
EP
European Patent Office
Prior art keywords
strip
controller
drive
hot
rollers
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
EP01962413A
Other languages
German (de)
English (en)
Other versions
EP1278606B1 (fr
Inventor
Ulrich Müller
Andreas Wolff
Gerd Thiemann
Michael Degner
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.)
ThyssenKrupp Steel Europe AG
BFI VDEH Institut fuer Angewandte Forschung GmbH
Original Assignee
ThyssenKrupp Stahl AG
BFI VDEH Institut fuer Angewandte Forschung 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 ThyssenKrupp Stahl AG, BFI VDEH Institut fuer Angewandte Forschung GmbH filed Critical ThyssenKrupp Stahl AG
Publication of EP1278606A1 publication Critical patent/EP1278606A1/fr
Application granted granted Critical
Publication of EP1278606B1 publication Critical patent/EP1278606B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B39/00—Arrangements for moving, supporting, or positioning work, or controlling its movement, combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C47/00—Winding-up, coiling or winding-off metal wire, metal band or other flexible metal material characterised by features relevant to metal processing only
    • B21C47/34—Feeding or guiding devices not specially adapted to a particular type of apparatus
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B37/00—Control devices or methods specially adapted for metal-rolling mills or the work produced thereby
    • B21B37/68—Camber or steering control for strip, sheets or plates, e.g. preventing meandering
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B39/00—Arrangements for moving, supporting, or positioning work, or controlling its movement, combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
    • B21B39/006—Pinch roll sets
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C47/00—Winding-up, coiling or winding-off metal wire, metal band or other flexible metal material characterised by features relevant to metal processing only
    • B21C47/34—Feeding or guiding devices not specially adapted to a particular type of apparatus
    • B21C47/3408—Feeding or guiding devices not specially adapted to a particular type of apparatus for monitoring the lateral position of the material
    • B21C47/3425—Feeding or guiding devices not specially adapted to a particular type of apparatus for monitoring the lateral position of the material without lateral edge contact
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B15/00—Arrangements for performing additional metal-working operations specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
    • B21B2015/0057—Coiling the rolled product
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B2265/00—Forming parameters
    • B21B2265/02—Tension
    • B21B2265/08—Back or outlet tension
    • 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
    • B21B39/00—Arrangements for moving, supporting, or positioning work, or controlling its movement, combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
    • B21B39/14—Guiding, positioning or aligning work

Definitions

  • the invention relates to a method for the correct winding of a metal strip, in particular a rolled hot strip in a reel device, the hot strip being fed to the reel device via a drive device with drive rollers, the drive rollers via a controller by means of actuators for changing the drive roller gap and the consequent influencing of the lateral
  • the position of the hot strip can be inclined relative to one another and the position of the edge of the hot strip in front of the driving device is fed to the controller as a measured variable and as a setpoint and takes up the priority of German patent application 100 14 813.1-32, to which reference is made in terms of content.
  • the invention relates to a device for the correct winding of a rolled hot strip in a reel device, with a drive device for supplying the hot strip to the reel device with drive rollers, with actuators and a controller for changing the drive roller gap and the effects caused thereby.
  • the finished rolled hot strip is transported from the exit roller table through a cooling section, preferably a system of spray water nozzles, to a reel device after it has left the last stand of the finishing train.
  • the hot strip is wound into coils from the coiler.
  • the hot strip can be guided on the outfeed roller table through side guide rulers which can be adjusted hydraulically to the side of the strip edges, in order to align the rolled hot strip for entry into the reel device. Accordingly, the side guide rulers are in contact with the strip edges of the hot strip during the reeling process.
  • a drive device which essentially consists of a lower drive roller which is mounted in the frame of the reel device and an upper drive roller which is mounted in a driver rocker arm.
  • the upper drive roller can be pivoted via hydraulic cylinders to adjust and adjust the gap between the drive rollers.
  • convex lower drive rollers or also drive rollers with a cylindrical middle part and conical roller ends are used.
  • the main functions of the drive device including its drives are to pull the beginning of the rolled strip coming from the finishing train, to guide the incoming strip tip in the direction of the reel device and to ensure the retraction against the reel device during the winding process.
  • the essential components of the reel device are an expandable mandrel for winding the rolled strip, pressure rollers and guide shells for guiding the rolled strip during the winding process and a Mandrel drive.
  • the free end of the mandrel (coil extraction side) is generally supported during reeling by a pivotable mandrel bearing.
  • the tip of the hot strip coming from the finishing stand is deflected downward by the drive roller pair from the plane of the outlet roller table towards the winding mandrel. Then the pressure rollers and the guide shells of the reel device guide the beginning of the band several times around the rotating mandrel.
  • the mandrel consists of several segments, which are spread continuously shortly after the tape tip arrives, until the tape is non-positively wound into tightly lying turns.
  • the main functions of the reel device are to ensure the non-positive connection between the beginning of the band and the mandrel, to carry the coil that is created during winding and to apply a defined band tension to the band during winding.
  • the actuating action of this drive device in relation to the hot strip is based on a local displacement of the point of application of the strip tensile force and the resulting non-uniform elastic strip elongation (bending) as a result of a pivoting of the upper drive roller.
  • a pivoting of the upper roller leads to a one-sided opening of the driver gap and thus to a displacement of the point of application of the pressing force exert the drive rollers on the belt.
  • the force application point which lies in the center of the system in the case of a symmetrical driver gap, is now displaced by a distance from the center of the system in the direction of the non-open side of the driver gap.
  • the belt retraction force resulting from the braking torque of the driving device also acts on the belt which was still running in the center at a distance from the center of the installation.
  • This force introduction situation brought about by the swiveling / tilting of the upper drive roller results in a moment which is exerted on the still running belt and which causes an elastic transverse bending of the belt.
  • the longitudinal strip fibers in the area of the drive device are oriented at an angle to the center axis of the system or at an angle to the drive roller axes.
  • a belt that is frictionally guided over a drive roller tends to follow the trajectory of the roller jacket points in the contact area.
  • this displacement of the strip there is also a gradual increase in the distance between the force application point of the driver retraction force and the center of tension at the strip contact point on the coil. If the upper drive roller is inclined to a large extent, however, the distance to the center of the system will be considerably greater than the transverse belt relocations that occur, so that the influence of the resulting change in the distance to the center of the system can be neglected.
  • the belt position control system known from the aforementioned German published patent application DE 38 28 356 A1 essentially consists of a belt edge detection system, a belt position controller and a hydraulic adjustment of the upper drive roller with force and inclination control.
  • the belt position is influenced by swiveling / tilting the upper drive roller in accordance with the previously described mechanical ones Basics.
  • the control difference for the belt position controller is formed from the current position of the belt edge, which is detected by means of a belt edge scanning, and the position setpoint, which is determined from the belt width and the system dimensions.
  • the output variable of the belt position controller is the setpoint of the drive roller inclination, which is specified for the drive roller adjustment. Since there is no contact between the rulers and the belt when the side guide rulers are open, both the usual wear of the rulers and damage to the belt edges caused by the side guide rulers are avoided.
  • the function of the drive device is essential for the function of the drive device as an actuator for the belt position control to influence the run-out angle of the belt (angle between the belt center line and the drive roller axis).
  • the angle caused by the curvature has the effect of a disturbance variable, i.e. the angle from the band curvature is not taken into account when generating the manipulated variable and falsifies it in an initially unknown quantity.
  • German patent DE 197 09 992 C1 describes a method for measuring the surface geometry of hot strip by generating lines on the strip surface by means of a light source. This method is intended to enable simple and effective detection of the strip flatness in order to use it for a more sensitive control of rolling and reel parameters.
  • a line projector is projected onto the measuring surface, the hot strip or the end face of a coil that is being created, and this pattern is recorded by a CCD camera (charge coupled device).
  • the projector is arranged above the hot strip and projects the line pattern at an angle to the vertical onto the surface of the hot strip, so that the lines preferably extend transversely to the surface of the strip and thus cover the entire bandwidth.
  • the CCD camera captures the lines running across the belt surface. With an absolute band flatness, a uniform pattern of straight lines with unchanged line spacing is created. Deviations of the belt surface from the ideal level cause a change in the line spacing in the area of the unevenness. The camera detects this change and can easily be converted into height differences by comparison with a reference pattern. In a similar way as with flatness measurement on the conveyor belt, the flatness of the end faces can be monitored with the help of the measuring system. The end face of the coil building up in the reel corresponds to the surface of the strip. This measuring method enables a quick on-line determination of the actual height differences of the belt surface and thus enables real-time recording and control of continuous strip sections.
  • the present invention has for its object to provide a method and for the correct winding of a hot strip in a reel device, with which an optimization of the winding result of the rolled strip coil is achieved.
  • the limit dimensions for a coil in the winding state are specified in DIN 1016.
  • This object is achieved with a method for the correct winding of a rolled hot strip in a reel device in that the surface geometry of the rolled strip is determined as a measured variable and is fed to the controller.
  • this object is achieved by the arrangement of a measuring device for determining the surface geometry of the rolled strip in the area in front of the driving device, the measured variable of which is fed to the controller.
  • the method according to the invention for the correct winding of a hot strip in a reel device and its associated device can be represented in a multi-size strip position control system with pilot control, which essentially consists of a measuring system for recording the strip surface geometry and the strip edge position, a multi-size controller for the strip tension and the strip position , a pilot control, which takes into account the influence of the surface geometry of the incoming strip, an observer for estimating the strip position on the coil and the strip tension between the driver and mandrel, and a hydraulic adjustment of the upper drive roller via a force and inclination control.
  • pilot control which essentially consists of a measuring system for recording the strip surface geometry and the strip edge position, a multi-size controller for the strip tension and the strip position , a pilot control, which takes into account the influence of the surface geometry of the incoming strip, an observer for estimating the strip position on the coil and the strip tension between the driver and mandrel, and a hydraulic adjustment of the upper drive roller via a force and inclination control.
  • the method for the correct winding of a hot strip into a reel device and its associated device in existing systems can be retrofitted using the existing actuators (adjustment of the drive rollers, drives of the driving device and mandrel) and the measuring device for determining the strip position and strip surface geometry.
  • the guide variable for the belt tension of the drive device is dimensioned such that the complete retraction by the drive device does not occur suddenly when the rolled strip is pulled out of the last stand of the finishing train, but a steadily differentiable increase even before the end of the belt is pulled out of the finishing stand until the train is fully taken over.
  • winding paragraphs in the coil are successfully avoided.
  • the main advantages of the method of the device according to the invention are that the strip surface geometry in the inlet to the reel device is predictively taken into account by a pilot control, the position of the strip on the coil is estimated by observers using verifiable physical models, and the strip tension taking into account the incoming strip surface geometry and the current band position is optimized.
  • FIG. 1 is a side view of an end portion of an outfeed roller table with subsequent drive and reel device for a hot strip
  • Fig. 2 is a detailed view of the drive rollers of the drive device
  • FIG. 3 shows a block diagram of a control circuit for multi-size control of the strip position of a hot strip in the area of a reel device.
  • FIG. 1 shows a schematic side view of an end section of an outlet roller table 1 which is connected on the input side to a finishing stand (not shown) of a hot strip mill.
  • a finished rolled hot strip 2 is conveyed in the direction of a reel device 3 with an upstream driving device 4 on the outlet roller table 1.
  • the hot strip 2 can be wound up into coils 5 from the reel device.
  • the drive device 4 arranged at the end of the run-out roller table 1 essentially consists of a lower drive roller 6 and an upper drive roller 7.
  • the upper drive roller 7 is via hydraulic piston / cylinder units (not shown) for adjusting and adjusting the gap between the drive rollers 6 and 7 in Direction of the lower drive roller 6 adjustable and laterally tiltable.
  • FIG. 1 shows a schematic side view of an end section of an outlet roller table 1 which is connected on the input side to a finishing stand (not shown) of a hot strip mill.
  • a finished rolled hot strip 2 is conveyed in the direction of a reel device 3 with an upstream driving
  • the driving device 4 including its drives, not shown, has to guide and align the incoming hot strip in the direction of the coiler device 3, the tasks to pull the beginning of the hot strip 2 coming from the finishing train, to guide the incoming strip tip in the direction of the coiler device 3 and to ensure the retraction of the hot strip 2 against the reel device 3 during the winding process.
  • the reel device 3 consists essentially of a driven and expandable mandrel 8 for winding the rolled strip 2 as well as pressure rollers and guide shells (not shown) for guiding the rolled strip 2 during the winding process.
  • the tip of the hot strip 2 is deflected downward by the drive rollers 6 and 7 from the plane of the outlet roller table 1 to the winding mandrel 8.
  • the pressure rollers and the guide shells of the reel device 3 guide the beginning of the strip several times around the rotating mandrel, the segments of the dome 8 being continuously spread until the rolled strip 2 is non-positively wound into coils which lie firmly on one another.
  • the essential functions of the reel device 3 are to ensure the non-positive connection between the beginning of the band and the mandrel 8, to carry the coil 5 which is produced during winding and to apply a defined band tension to the band 2 during winding. Furthermore, in the area of the end of the outlet roller table 1, lateral guide lines 11 are provided on the respective ends of the rollers 9 of the outlet roller table 1 and can be adjusted laterally on the edges 10 of the hot strip 2, around the beginning of the hot strip 2 for entry into the reel device 3 align. The side guide rulers 11 are open during the reeling process.
  • a measuring device 12 for determining the position of the edge of the rolled strip 2 and a further measuring device 13 for determining the surface geometry of the rolled strip 2, in particular for recognizing any “saber shape” of the rolled strip 2, are also arranged in the region of the end of the run-out roller table 1.
  • the measuring devices 12 and 13 are preferably arranged in front of the side guide rulers 11 and after the cooling section (not shown) in the course of the run-out roller table 1.
  • the measuring device 13 for determining the surface geometry of the rolled strip 2 has a projector 18 and a camera 19 and their function has already been explained in connection with the assessment of the German patent DE 197 09 992 C1, which hereby becomes part of the description.
  • FIG. 3 shows a block diagram of a control circuit for a multi-size control of the strip position of a hot strip 2 in the area of a reel device 3.
  • the manipulated variables for the drive roller setting (target drive roller inclination) and the drive roller drive (target strip tension torque) with the aid of a Multi-size controller 14 can be determined.
  • the influence of the strip surface geometry, in particular the so-called “saber” shape, is compensated for by a pilot control 15.
  • a fictitious transverse bending moment is determined from the result of the strip surface geometry measurement 13 and the strip tension, which is compensated for by a corresponding inclination of the upper drive roller 6 in order to avoid lateral displacement of the rolled strip 2 due to the strip surface geometry.
  • the strip position on the coil for the measurement of which no processes that can be implemented in rolling operation are known to date, and the strip tension between the driving device 5 and the mandrel 8 are estimated with the help of observers 16 (model-based determination of non-measurable variables from measured variables) and fed back to the formation of the control differences ,
  • the strip edge position in front of the driver is determined by means of the measuring device 12.
  • the target strip edge position and the target strip tension are fed to the multivariable controller 14 as reference variables.
  • the guide variable for the belt tension of the driving device 5 is designed in such a way that the complete retraction by the driving device 5 does not occur abruptly when the rolled strip 2 is pulled out of the last stand of the finishing train, but instead a steadily differentiable increase takes place until the full tension acceptance begins, which before the tape end is unthreaded.
  • the contact pressure of the driver rollers are preferably used and the bending moment of the belt around the drive rollers.
  • the strip tension, the drive roll inclination, strip speed, strip position in front of the driver and surface geometry of the rolled strip are preferably used.
  • the control of the drive of the dome 8 takes place via a speed control with subordinate torque and current control.
  • the specific belt data are specified to control the engine torque. This ensures that the strip tension is adapted to the strip cross-section and is constant over the strip length.
  • the regulation of the drives of the drive rollers 6 and 7 takes place via a speed control with subordinate current control.
  • the hydraulic adjustment of the upper drive roller 7 takes place via a force and inclination control.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Winding, Rewinding, Material Storage Devices (AREA)

Abstract

La présente invention concerne un procédé et un dispositif permettant d'enrouler une bande métallique (2) dans une position correcte, dans un dispositif d'enroulement (3). Le feuillard à chaud (2) est apporté au dispositif d'enroulement (3) par l'intermédiaire d'un dispositif d'entraînement (4), à l'aide de rouleaux d'entraînement (6, 7). Ces rouleaux d'entraînement (6, 7) peuvent être inclinés l'un vers l'autre par l'intermédiaire d'un système de réglage (14), à l'aide d'éléments de réglage, afin de modifier l'espacement entre les rouleaux d'entraînement. La position de l'arête (10) du feuillard à chaud avant le dispositif d'entraînement est transmise au système de réglage sous forme de grandeur de mesure et sous forme de grandeur de référence théorique. Afin d'optimiser le résultat de l'enroulement de la bobine de bande laminée (5), la géométrie superficielle de la bande laminée est déterminée en tant que grandeur de mesure et est transmise au système de réglage.
EP01962413A 2000-03-27 2001-03-22 Procede et dispositif permettant d'enrouler un feuillard lamine a chaud dans une position correcte, dans un dispositif d'enroulement Expired - Lifetime EP1278606B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE10014813 2000-03-27
DE10014813A DE10014813B4 (de) 2000-03-27 2000-03-27 Verfahren und Vorrichtung zum lagegerechten Aufwickeln eines gewalzten Warmbandes in einer Haspelvorrichtung
PCT/EP2001/003251 WO2001072444A1 (fr) 2000-03-27 2001-03-22 Procede et dispositif permettant d'enrouler un feuillard lamine a chaud dans une position correcte, dans un dispositif d'enroulement

Publications (2)

Publication Number Publication Date
EP1278606A1 true EP1278606A1 (fr) 2003-01-29
EP1278606B1 EP1278606B1 (fr) 2005-02-09

Family

ID=7636305

Family Applications (1)

Application Number Title Priority Date Filing Date
EP01962413A Expired - Lifetime EP1278606B1 (fr) 2000-03-27 2001-03-22 Procede et dispositif permettant d'enrouler un feuillard lamine a chaud dans une position correcte, dans un dispositif d'enroulement

Country Status (6)

Country Link
US (1) US6874724B2 (fr)
EP (1) EP1278606B1 (fr)
JP (1) JP4842488B2 (fr)
KR (1) KR100702745B1 (fr)
DE (2) DE10014813B4 (fr)
WO (1) WO2001072444A1 (fr)

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CN108543813A (zh) * 2018-03-27 2018-09-18 北京首钢股份有限公司 一种改善热轧热卷箱卷型的工艺控制方法

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DE10014813B4 (de) 2000-03-27 2005-10-06 Betriebsforschungsinstitut VDEh - Institut für angewandte Forschung GmbH Verfahren und Vorrichtung zum lagegerechten Aufwickeln eines gewalzten Warmbandes in einer Haspelvorrichtung
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CN104607493B (zh) * 2015-01-19 2016-10-19 宁波钢铁有限公司 一种比例控制为主积分控制为辅的卷取位置控制方法
EP3456426B1 (fr) * 2017-09-19 2020-07-15 Primetals Technologies Germany GmbH Refroidissement d'un produit laminé plat disposé de manier inclinée
CN109363835B (zh) * 2018-12-03 2023-05-05 广东佰分爱卫生用品有限公司 一种制备纸尿裤用的无纺布运动位置矫正设备
CN111633032B (zh) * 2020-05-29 2021-11-19 首钢京唐钢铁联合有限责任公司 一种带钢尾部防拉断方法
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CN113357921A (zh) * 2021-05-17 2021-09-07 山东莱钢永锋钢铁有限公司 一种加热炉出炉辊道控制系统
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JP4842488B2 (ja) 2011-12-21
DE10014813A1 (de) 2001-10-11
DE50105307D1 (de) 2005-03-17
EP1278606B1 (fr) 2005-02-09
US6874724B2 (en) 2005-04-05
KR100702745B1 (ko) 2007-04-03
US20030102401A1 (en) 2003-06-05
JP2004500245A (ja) 2004-01-08
WO2001072444A1 (fr) 2001-10-04
DE10014813B4 (de) 2005-10-06
KR20020093862A (ko) 2002-12-16

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