EP1240955B1 - Procédé et dispositif pour calculer le profil de l'emprise entre les cylindres - Google Patents

Procédé et dispositif pour calculer le profil de l'emprise entre les cylindres Download PDF

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Publication number
EP1240955B1
EP1240955B1 EP20020001665 EP02001665A EP1240955B1 EP 1240955 B1 EP1240955 B1 EP 1240955B1 EP 20020001665 EP20020001665 EP 20020001665 EP 02001665 A EP02001665 A EP 02001665A EP 1240955 B1 EP1240955 B1 EP 1240955B1
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Prior art keywords
roll
calculation
solution
calculated
roll gap
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Expired - Lifetime
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EP20020001665
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German (de)
English (en)
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EP1240955A1 (fr
Inventor
Markus Widder
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Primetals Technologies Austria GmbH
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Voest Alpine Industrienlagenbau GmbH
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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
    • B21B37/28—Control of flatness or profile during rolling of strip, sheets or plates
    • B21B37/42—Control of flatness or profile during rolling of strip, sheets or plates using a combination of roll bending and axial shifting of the rolls
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B13/00—Metal-rolling stands, i.e. an assembly composed of a stand frame, rolls, and accessories
    • B21B13/02—Metal-rolling stands, i.e. an assembly composed of a stand frame, rolls, and accessories with axes of rolls arranged horizontally
    • B21B2013/025—Quarto, four-high stands
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B2261/00—Product parameters
    • B21B2261/02—Transverse dimensions
    • B21B2261/04—Thickness, gauge
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B2265/00—Forming parameters
    • B21B2265/12—Rolling load or rolling pressure; roll force
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B2267/00—Roll parameters
    • B21B2267/24—Roll wear
    • 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
    • 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
    • B21B38/10—Methods or devices for measuring, detecting or monitoring specially adapted for metal-rolling mills, e.g. position detection, inspection of the product for measuring roll-gap, e.g. pass indicators
    • B21B38/105—Calibrating or presetting roll-gap

Definitions

  • the present invention relates to a method for calculating the roll gap contour in a roll stand consisting of two work rolls and an associated device.
  • a method for online calculation of the roll gap contour is e.g. from US 5,873,277 A out.
  • this method is also based on an approximation in that the rollers of the roll stand can be broken down into several disks for the calculation and in between is interpolated.
  • This method therefore has a limited accuracy because the Slices cannot be made arbitrarily thin, otherwise the computing time increases increases rapidly and the method is therefore no longer suitable for real-time application would.
  • the aim of the present invention is therefore to provide a method and an apparatus for Calculation of the roll gap contour to indicate that gives very accurate results and can still run fast enough for real-time applications.
  • the object is achieved in that the roll gap contour online from the Results of a preliminary calculation of the roll gap contour and a online calculation of the roll gap contour is put together.
  • This procedure enables the advantages of a pre-calculation, the high accuracy, and an online calculation, the high speed, in one process unite, which makes it possible to form the roll gap contour very quickly and with high accuracy to calculate.
  • This procedure is therefore simple in a real time application, e.g. control of a rolling mill.
  • the high accuracy of the process the quality of the rolled product can be increased, since predetermined Rolled profiles can be adhered to very precisely.
  • a very favorable method results if the solution of the preliminary calculation is calculated using a finite element calculation, since these calculations are very precise and thus an exact solution to the problem is determined. To achieve a certain accuracy, it is sufficient to calculate the first N T Fourier modes for the solution.
  • the solution of the preliminary calculation can be calculated as the sum of a solution of a finite element calculation and a solution of a semi-analytical calculation. The solution of the semi-analytical calculation can easily be found if the solution is calculated for an infinitely long cylinder. In order to achieve a certain accuracy, it is advantageous here to calculate the first N F Fourier modes of the solution with the finite element calculation and the N F +1 to N T Fourier modes of the solution with the semi-analytical calculation.
  • a further transformation results in a suitable transformation the two-dimensional contact problem to a one-dimensional contact problem, whereby with the solution from the preliminary calculation, the roll gap contour online using the one-dimensional contact problem between contacting rollers and / or between the work roll and the rolling material is calculated and the one-dimensional solution in Connection to the two-dimensional solution is transformed back.
  • the nonlinear contact problem can be solved very advantageously iteratively by linearization become.
  • the Calibrate a roll stand the roll deformations of a number w rolls of Roll stand calculated directly from the resulting w-1 coupled contact problems become.
  • a correction to the strip exit thickness can be made at least one roll stand from the difference in roll deformation during calibration and can be calculated in real time in the conventional rolling process and the Strip exit thickness can be corrected in real time if necessary by changing manipulated variables.
  • the comparison of the calculations when calibrating and when conventional rolling process the measured scaffold suspension characteristic at the working point Getting corrected.
  • a simple one Check the tolerance tolerance. Because the results of the procedure are very accurate, the quality of the rolled products, through improved tolerance or by adhering to tighter tolerances, which can be further improved Consequence of course also has a positive economic impact.
  • the method according to the invention is very advantageous in a higher-level control integrated a rolling mill, the roll gap contour, and possibly the Strip exit thickness, calculated in real time, compared with a specified value and deviations of the roll gap contour or the lying outside the specified tolerance Corrected strip thickness in real time by changing manipulated variables. So you have that Possibility to exactly close the rolled profile from the first to the last roll stand Taxes.
  • the settings of the individual roll stands can be coordinated and the quality of the rolled product can be further improved.
  • r , ⁇ , z denote the cylindrical coordinates in the radial, angular and axial directions, u the deformation vector field u ( r , ⁇ , z ) with components in the direction r , ⁇ , z , E the modulus of elasticity, ⁇ the transverse expansion factor, ⁇ the density of the Roll material, g the acceleration of gravity, ⁇ ij the tension tensor and u ij the deformation tensor.
  • ⁇ rr , ⁇ rz , ⁇ r ⁇ are to be replaced by ⁇ nn , ⁇ nt , ⁇ n ⁇ , where ⁇ nn , ⁇ nt , ⁇ n ⁇ are the components of the stress tensor in transformed coordinates, n denotes the normal direction with respect to of the bearing cone, t is the corresponding transverse direction.
  • Each solution L of the Lamé equation can be represented in a generally known form as a Fourier series.
  • L FEM + L ANL is chosen for the solution.
  • L FEM / n ( r , z ) consequently denotes the nth Fourier mode of a solution of the Lamé equation, calculated using the finite element method in the Fourier space
  • L ANL / n ( r , z ) denotes the nth Fourier mode a solution of the Lamé equation, calculated using semi-analytical methods for an infinitely long cylinder.
  • the entire solution L is thus constructed from a finite element solution L FEM and a semi-analytical solution L ANL .
  • the solutions L FEM of the finite element calculation can be found using the well known methods of finite elements.
  • the exemplary solution is therefore only outlined in broad outline.
  • the Lamé equation is first multiplied by a test function v and then integrated over the volume V with surface O.
  • K F ⁇ ⁇
  • F F ⁇ ⁇
  • F F ⁇ ⁇
  • u the sum of suitable test functions u i / k cos ( n ⁇ ) or u i / k sin ( n ⁇ ) with amplitudes c i / kn and integration via the angle variable ⁇ leads to a linear in each Fourier mode System of equations for determining the amplitudes c i / kn .
  • p n (1, z ) 1 for - c 0 ⁇ z ⁇ c 0
  • p n (1, z ) 0 otherwise selected.
  • the value for c 0 can be chosen arbitrarily.
  • the standardized solution L ANL / c 0 ⁇ 0 is thus calculated once and the transformation of the solutions to the actual geometry is carried out only when required. It is of course also possible to determine these solutions L ANL / c ⁇ directly for the respective geometry of the roll. However, the calculation of these solutions L ANL / c ⁇ takes up a lot of computing time, which is why it is cheaper to carry out the calculations only once and then only to carry out the transformations if necessary.
  • the work roll A is in contact with the rolling material M on the underside of the bale over the strip width B and in contact with the backup roll S in the top.
  • bending forces F B act on the work roll.
  • the position of the work roll A can have a displacement d A transverse to the rolling direction.
  • the position of the rolling material M can also be shifted transversely to the rolling direction, shift d M.
  • the rolling force F W acts between the rolling material M and the work roll A.
  • the support roller S is in contact with the work roller A on its underside.
  • the stator forces F S act in the bearings of the support roller S.
  • Both work roller A and back-up roller S are ground (s A , s S ), both rollers are thermally expanded (t A , t S ) and their contour is changed by wear (v A , v S ).
  • These influences can be regarded as known and can either be determined directly from measurements, or in turn come from suitable model calculations.
  • the contact area K AM between work roll A and rolling material M, based on the coordinate system of work roll A, is described as follows:
  • the contact angle ⁇ k results from the maximum contact length L k with respect to z, divided by the radius of the work roll A.
  • the contact area K AS between work roll A and backup roll S, based on the coordinate system of work roll A, is described analogously as follows:
  • ⁇ S is again the maximum contact angle with regard to z and L BA or L BS are the bale lengths of work roller A and support roller S.
  • the indices i and j therefore describe the point of application of the pressure p and the indices k and I describe the location where the deformation occurs.
  • Q AS / ij 1 for ( ⁇ , z ) ⁇ R AS ij .
  • x 0 and x 1 describe an additional vertical displacement or tilting of the work roll A.
  • the total deformation on the underside of the work roll u kl corresponds exactly to the roll gap contour sought, ie the determination of the roll gap contour is equivalent to the calculation of u kl .
  • r k is the non-deformed "distance between work roller A and support roller S.
  • the total force and total moment must disappear, which provides two further equations for determining x 0 and x 1 .
  • Q AS / ij , x 0 and x 1 are now determined from the contact problem formulated above. It should also be noted that if the pressure distribution p AM / ij between work roll A and rolling material M can be assumed to be known, q AS / ij , x 0 and x 1 can be calculated directly. If the pressure distribution p AM / ij is not known, p AM / ij , q AS / ij , x 0 and x 1 must be calculated iteratively. With the q AS / ij , x 0 and x 1 or p AM / ij thus determined, the roll gap contour, ie u kl , can now be calculated.
  • the contact problem formulated above in the form of two inequalities is non-linear, which is why the solution is done iteratively.
  • the starting point for the iterative solution can be, for example, a linearized system of equations of the form his.
  • the matrix M is formed by the components o AS ij, kl and s AS ij, kl of the relationships for o kl and s kl .
  • the vector b then contains all the other components of the relationships for o kl and s kl .
  • a significant reduction in computing time can be achieved by reducing the two-dimensional contact problem to a one-dimensional one using a suitable mathematical transformation.
  • the offline calculation is first carried out once.
  • the standardized semi-analytical solution L ANL / c 0 ⁇ 0 is calculated once (computing time about 20min; Note: all information on the computing time are exemplary and refer to a PC with a clock frequency of 350MHz).
  • the Fourier finite element solutions and the radial deformation fields are determined in advance as a preliminary calculation (computing time approximately 40 seconds per roll).
  • the online calculations are then carried out in the company as required.
  • the deformation of the rolls which occurs is calculated (computing time approximately 1 second per roll stand).
  • the roll gap contour can be calculated for each individual roll stand 1 at any time and compared with predetermined values. If deviations are determined by influencing certain manipulated variables, such as the bending force, the roll adjustment or the work roll displacement, the control can make the necessary corrections.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Control Of Metal Rolling (AREA)

Claims (26)

  1. Procédé de calcul de l'emprise entre les cylindres dans une cage de laminoir, formé de deux rouleaux de travail (A), caractérisé en ce que l'emprise entre les cylindres est obtenue en ligne, en combinant les résultats d'un calcul préalable, effectué à l'avance, de l'emprise entre les cylindres et d'un calcul en ligne, effectué en ligne, de l'emprise entre les cylindres.
  2. Procédé selon la revendication 1, caractérisé en ce que, en tant que solution L du calcul préalable, on calcule un champ de vecteur de déformation u (r, ϕ, z), respectivement le champ de déformation radial µr d'un cylindre, sous une charge prédéterminée.
  3. Procédé selon la revendication 2, caractérisé en ce que la solution L est représentée sous la forme de série de Fourier.
  4. Procédé selon revendication 3, caractérisé en ce que la solution L du calcul préalable est calculée avec un Calcul à Éléments Finis LFEM.
  5. Procédé selon la revendication 4, caractérisé en ce que, pour la solution L, on calcule le premier mode de Fourier NT.
  6. Procédé selon la revendication 3, caractérisé en ce que la solution L du calcul préalable est calculée en tant que somme d'une solution d'un Calcul à Éléments Finis LFEM et d'une solution d'un calcul semi-analytique LANL.
  7. Procédé selon la revendication 6, caractérisé en ce que la solution L du calcul semi-analytique LANL est calculée en tant que solution d'un cylindre de longueur infinie.
  8. Procédé selon la revendication 6 ou 7, caractérisé en ce qu'avec le Calcul à Éléments Finis, les premiers modes de Fourier NF de la solution L et, avec le calcul semi-analytique, les modes de Fourier NF+1 à NT de la solution L, sont calculés.
  9. Procédé selon l'une des revendications 1 à 8, caractérisé en ce que la solution L est calculée pour un cylindre de rayon normalisé et/ou de charge normalisée.
  10. Procédé selon la revendication 9, caractérisé en ce que, dans le calcul en ligne et/ou le calcul préalable, les solutions normalisées sont adaptées aux conditions réelles par une transformation appropriée.
  11. Procédé selon l'une des revendications 1 à 10, caractérisé en ce que, en tant que solution en ligne, on calcule l'emprise entre les cylindres avec la solution issue du calcul préalable, en ligne, à partir du problème de contact, au moins entre le rouleau de travail (A) et le matériau à laminer (M) et, le cas échéant, entre d'autres rouleaux en contact.
  12. Procédé selon l'une des revendications 1 à 11, caractérisé en ce que le problème de contact bidimensionnel est réduit, par une transformation appropriée, en un problème de contact monodimensionnel, l'emprise entre les cylindres est calculée avec la solution issue du calcul préalable, en ligne, à l'aide du problème de contact monodimensionnel, entre des rouleaux en contact et/ou entre le rouleau de travail (A) et le matériau à laminer (M), et la solution monodimensionnelle est retransformée ensuite, pour une solution bidimensionnelle.
  13. Procédé selon la revendication 11 ou 12, caractérisé en ce que le problème de contact non-linéaire est résolu de façon itérative.
  14. Procédé selon la revendication 11 ou 12, caractérisé en ce que le problème de contact non-linéaire est converti, par linéarisation, en un système d'équations linéaires, et résolu de façon itérative.
  15. Procédé selon l'une des revendications 11 à 14, caractérisé en ce que, lors de l'étalonnage d'une cage de laminoir (1), les déformations des rouleaux, d'un nombre w de rouleaux de la cage de laminoir (1), sont calculées à partir des w-1 problèmes de contact couplés résultants.
  16. Procédé selon la revendication 15, caractérisé en ce qu'une correction à l'épaisseur de sortie de bande, au moins d'une cage de laminoir (1), est calculée en temps réel, à partir de la différence de la déformation des rouleaux lors de l'étalonnage et/ou lors du processus de laminage antérieur et l'épaisseur de sortie de bande est corrigée en temps réel en cas de besoin, par une modification des grandeurs de réglage, tel que, par exemple, le calage des cylindres.
  17. Procédé selon la revendication 15 ou 16, caractérisé en ce que, à partir de la comparaison des calculs, lors de l'étalonnage et lors du processus de laminage antérieur, on corrige la caractéristique mesurée de la suspension de la cage au point de travail.
  18. Procédé de régulation d'un train de laminage, comprenant au moins une cage de laminoir, dans lequel l'emprise entre les cylindres d'une cage de laminoir (1) est calculée en temps réel, est comparée à une valeur prédéterminée et des écarts, extérieurs à la tolérance prédéterminée, de l'emprise entre les cylindres, sont corrigés en temps réel, par une modification des grandeurs de réglage, telle que par exemple de la force de flexion et/ou du décalage du rouleau de travail, caractérisé en ce que l'emprise entre le cylindre est calculée selon l'une des revendications 1 à 17.
  19. Procédé selon la revendication 18, caractérisé en ce que l'épaisseur de sortie de bande d'une cage de laminoir (1) est calculée en temps réel et l'épaisseur de sortie de bande est corrigée en temps réel, par une modification des grandeurs de réglage, telle que, par exemple, le calage des cylindres.
  20. Procédé selon la revendication 18 ou 19, caractérisé en ce que, à partir de la comparaison des calculs, lors de l'étalonnage et lors du processus de laminage antérieur, on corrige la caractéristique mesurée de suspension de la cage au point de travail.
  21. Dispositif de calcul de l'emprise entre les cylindres, dans une cage de laminoir, formé de deux rouleaux de travail et d'une unité de calcul, caractérisé en ce que l'emprise entre les cylindres est susceptible d'être calculée dans l'unité de calcul, en ligne, à partir des résultats d'un calcul préalable, effectué préalablement, de l'emprise entre les cylindres, et d'un calcul en ligne, effectué en ligne, de l'emprise entre les cylindres.
  22. Dispositif selon la revendication 21, caractérisé en ce que des grandeurs d'entrée, pour le calcul de l'emprise entre les cylindres, telles que, par exemple, poli des cylindres, l'usure des cylindres, les décalages des cylindres, les efforts, etc., peuvent être mesurées et/ou peuvent être calculées à partir de modèles appropriés et être traitées dans l'unité de calcul.
  23. Dispositif selon la revendication 21 ou 2, caractérisé en ce que la déformation des cylindres peut être calculée en temps réel dans l'unité de calcul, lors de l'étalonnage d'une cage de laminoir et/ou pendant le processus de laminage, et l'épaisseur de sortie de bande peut être corrigée en temps réel en cas de besoin par une modification des grandeurs de réglage, telle que, par exemple, le calage des cylindres.
  24. Dispositif selon l'une des revendications 21 à 23, caractérisé en ce que la caractéristique mesurée de la suspension de cage peut être corrigée au point de travail, par une comparaison des calculs, effectués lors de l'étalonnage et lors d'un processus de laminage antérieur.
  25. Dispositif selon l'une des revendications 21 à 24, caractérisé en ce que l'unité de calcul est un ordinateur.
  26. Dispositif selon la revendication 25, caractérisé en ce que le calcul de l'emprise entre les cylindres, et/ou de la déformation des cylindres, est mis en oeuvre en tant que programme d'ordinateur, sur un ordinateur.
EP20020001665 2001-03-14 2002-01-24 Procédé et dispositif pour calculer le profil de l'emprise entre les cylindres Expired - Lifetime EP1240955B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AT4002001A AT410904B (de) 2001-03-14 2001-03-14 Verfahren und vorrichtung zur berechnung der walzspaltkontur
AT4002001 2001-05-17

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Publication Number Publication Date
EP1240955A1 EP1240955A1 (fr) 2002-09-18
EP1240955B1 true EP1240955B1 (fr) 2004-07-14

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EP (1) EP1240955B1 (fr)
AT (1) AT410904B (fr)
DE (1) DE50200608D1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111801173A (zh) * 2018-03-09 2020-10-20 首要金属科技德国有限责任公司 在轧制扁平轧件时避免磨损边缘

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT500764A1 (de) * 2004-05-19 2006-03-15 Voest Alpine Ind Anlagen Verfahren zur berechnung der geometrischen form von walzgut
DE102009043401A1 (de) * 2009-09-29 2011-04-07 Siemens Aktiengesellschaft Verfahren zur modellbasierten Ermittlung von Stellglied-Sollwerten für die symmetrischen und asymmetrischen Stellglieder der Walzgerüste einer Warmbreitbandstraße
DE102017221126A1 (de) * 2017-11-27 2019-05-29 Sms Group Gmbh Walzgerüst
CN110064670B (zh) * 2019-03-28 2020-08-18 南京钢铁股份有限公司 一种快速标定夹送辊的方法
CN112559950B (zh) * 2020-11-16 2022-07-19 燕山大学 一种预报工作辊边部压靠现象的二十辊轧机辊系弹性变形轧辊单元划分方法

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3637043A1 (de) * 1986-10-30 1988-05-05 Licentia Gmbh Verfahren zum vorausbestimmten einhalten enger dickentoleranzen beim walzen von walzgut in warmbandstrassen
DE3829441A1 (de) * 1988-07-11 1990-01-18 Escher Wyss Ag Vorrichtung zum kaltwalzen von metallbaendern und folien sowie verfahren zu deren betrieb
DE19618712B4 (de) * 1996-05-09 2005-07-07 Siemens Ag Regelverfahren für ein Walzgerüst zum Walzen eines Bandes

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111801173A (zh) * 2018-03-09 2020-10-20 首要金属科技德国有限责任公司 在轧制扁平轧件时避免磨损边缘
CN111801173B (zh) * 2018-03-09 2022-06-14 首要金属科技德国有限责任公司 在轧制扁平轧件时避免磨损边缘

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AT410904B (de) 2003-08-25
EP1240955A1 (fr) 2002-09-18
DE50200608D1 (de) 2004-08-19
ATA4002001A (de) 2003-01-15

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