EP1525061B2 - Correction dynamique d'epaisseur - Google Patents

Correction dynamique d'epaisseur Download PDF

Info

Publication number
EP1525061B2
EP1525061B2 EP03764965.4A EP03764965A EP1525061B2 EP 1525061 B2 EP1525061 B2 EP 1525061B2 EP 03764965 A EP03764965 A EP 03764965A EP 1525061 B2 EP1525061 B2 EP 1525061B2
Authority
EP
European Patent Office
Prior art keywords
strip
thickness
take
coiler
average
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.)
Expired - Lifetime
Application number
EP03764965.4A
Other languages
German (de)
English (en)
Other versions
EP1525061B8 (fr
EP1525061A1 (fr
EP1525061B1 (fr
Inventor
Michael Pampel
Günter PAMPEL
Manfred Dr. Jeude
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.)
Aluminium Norf GmbH
Original Assignee
Aluminium Norf 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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=30469021&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP1525061(B2) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Aluminium Norf GmbH filed Critical Aluminium Norf GmbH
Publication of EP1525061A1 publication Critical patent/EP1525061A1/fr
Application granted granted Critical
Publication of EP1525061B1 publication Critical patent/EP1525061B1/fr
Publication of EP1525061B8 publication Critical patent/EP1525061B8/fr
Publication of EP1525061B2 publication Critical patent/EP1525061B2/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

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
    • B21B37/16—Control of thickness, width, diameter or other transverse dimensions
    • B21B37/18—Automatic gauge 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
    • B21B37/16—Control of thickness, width, diameter or other transverse dimensions
    • B21B37/165—Control of thickness, width, diameter or other transverse dimensions responsive mainly to the measured thickness of the product
    • 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
    • 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
    • B21B38/00—Methods or devices for measuring, detecting or monitoring specially adapted for metal-rolling mills, e.g. position detection, inspection of the product
    • B21B38/04—Methods or devices for measuring, detecting or monitoring specially adapted for metal-rolling mills, e.g. position detection, inspection of the product for measuring thickness, width, diameter or other transverse dimensions of the product

Definitions

  • the invention relates to a method and a device for correcting the thickness of a metallic strip during rolling with a roll stand with adjusting elements for regulating the thickness of the metallic strip and at least one take-up reel, according to the preamble of the respective independent claim (see US-A-3540247).
  • the rolled metallic strips When rolling metallic strips, such as strips of aluminum or an aluminum alloy, to reduce their thickness, the rolled metallic strips are wound after passing through a roll stand on a take-up reel as a bunch.
  • An important quality feature of the rolled strip wound up as a bundle is, inter alia, the thickness of the strip and its fluctuations.
  • the thickness of the metallic strip is determined by means of a radiometric measuring method and controlled the control elements of the rolling mill depending on this value.
  • the radiometric measuring method the radiation, transmitted through the metallic strip, of a radiator arranged on the other side of the metallic strip is measured with the aid of a detector arranged on one side of the metallic strip.
  • the radiation measured by the detector is dependent on the absorption in the metallic band, which is determined in particular by the thickness of the metallic strip.
  • the deviation of the radiometrically determined strip thickness from a nominal value of the thickness of the strip is used as an input variable for the control of setting elements of the roll stand for influencing the thickness of the metallic strip.
  • the thickness measurement obtained by radiometry is dependent on further influencing variables, for example the alloy composition of the strip, the air density and air temperature in the measuring path, for example when blowing off or sucking off heated air, the proportion of coolant and lubricant mist in the measuring path and the temperature of the rolling stock and the System components for determining the thickness. Therefore, a determination of the influencing variables and standardization of the radiometric measuring method on the additional parameters is absolutely necessary.
  • a disadvantage of the hitherto known method for correcting the strip thickness of a metallic strip during rolling is that determination of the influencing variables and normalization of the radiometric measuring method to these influencing variables can not take place comprehensively under rolling conditions.
  • determination of the influencing variables and normalization of the radiometric measuring method to these influencing variables can not take place comprehensively under rolling conditions.
  • Variations in sampling as well as measurement uncertainties in spark spectrometry mean that the radiometrically determined thickness is provided with a confidence interval, which must be taken into account depending on the product requirement.
  • the electrical zero point of the detector signal is used with the radiator shutter closed, on the other hand at full irradiation, ie without a sample in the measuring path, a calibration factor is determined which takes into account the absorption conditions in the test section at this time. This happens automatically during the bundle change or at each opening of the spotlight cover without material to be measured.
  • the temperature change in the measuring path with rolling stock is concluded.
  • a detection of the integral temperature profile in the measuring path, which has great variations when rolling through the hot rolled strip, is not possible. The integral temperature profile can therefore not be taken into account in the radiometric thickness determination.
  • control standards i. metallic sheets whose absorption properties do not change except by temperature changes.
  • a correction of the absorption curve stored in the measuring system can be carried out.
  • this adjustment can also be carried out only with interrupted rolling.
  • an average strip thickness of a strip section is determined from at least one strip length measurement and the measurement of the associated rotation of the take-up reel and the setting elements of the rolling stand are controlled at least as a function of the determined mean strip thickness of the strip section
  • Bandes is connected to the take-up reel with the measured tape length and Aufwickelhaspelumwindung, from which can be determined by a fill factor, the average tape thickness.
  • the required measured values of the strip length and of the take-up reel turn are almost independent of the influencing variables of the radiometric thickness measurement, so that a measurement value independent of the environmental conditions of the rolling stand is available for the mean strip thickness of a strip section.
  • the present invention based on the object to provide a method and apparatus for correcting the thickness of a metallic strip in rolling with a roll stand, which or the production of rolled strips with a ensured reduced thickness tolerance. The problem is solved by the method by the characterizing feature combination according to claim 1.
  • the strip thickness is additionally measured radiometrically and the setting elements of the rolling stand are controlled as a function of a radiometric strip thickness corrected with the mean strip thickness
  • an input variable for controlling the strip thickness when rolling a metallic strip which on the one hand enables an almost instantaneous influencing of the adjusting elements and on the other hand can be corrected independently of the typical influencing variables of the radiometric determination of the strip thickness during the rolling process.
  • a particularly high accuracy in the measurement of the strip length during rolling is, according to an advantageously further developed embodiment of the method according to the invention, achieved by measuring the strip length using the laser Doppler velocimetry method.
  • the Laser Doppler Velocimetry (LDV) method is a standard method of measuring flow velocities. The principle is to detect and evaluate the scattered light of a particle which traverses an interference fringe system generated by a laser source. The frequency of the received signal is then proportional to the particle velocity. If the interference fringe system is imaged onto the rolled strip, then the speed of the rolled strip can be determined very precisely by scattered light evaluation. Thus, a high-precision strip length measurement is available for determining the mean strip thickness of a strip section.
  • the number of revolutions of the take-up reel is measured using high-resolution incremental encoders on the take-up reel or take-up reel motor axis, the number of revolutions of the take-up reel necessary for determining the mean strip thickness can be determined with sufficient accuracy in a simple manner.
  • An advantageous embodiment of the inventive method undergoes the fact that a plurality of values for the mean strip thickness of the same strip section is determined by selecting a plurality of different starting points and to be measured tape lengths for the determination of the mean strip thickness.
  • the influence of the coiling process on the filling factor can, according to a further developed embodiment of the method, be taken into account by additionally smoothing the values for the mean strip thickness of the same strip section as a function of the current coil diameter of the strip on the variable-weight take-up reel. In this way it can be prevented that, especially at the beginning of the coiling process, fluctuations in the diameter of the collar have a greater effect on the determination of the mean strip thickness.
  • the process reliability in the determination of the mean strip thickness can be further increased by performing at least one further, redundant strip length measurement according to an advantageous embodiment of the method according to the invention.
  • US-A-3540247 also discloses a device for correcting the thickness of a metallic strip during rolling with at least one rolling stand having adjusting elements for controlling the thickness of the strip, at least one take-up reel and means for measuring the strip length and the extent of the associated rotation of the take-up reel in that means for controlling the setting elements of the rolling stand are provided as a function of an average strip thickness determined from the measured strip length and the associated rotation of the take-up reel.
  • An input to control the actuators is, according to the device according to the invention, immediately after the rolling of the tape available, because in addition means for radiometric thickness determination of the metallic strip between Roll stand and take-up reel are provided.
  • An advantageous embodiment undergoes the device according to the invention in that means for redundant tape length measurement are provided.
  • the process reliability during rolling in relation to the failure of a strip length measuring system can be increased thereby, on the other hand, a check of the respective strip length measurement is possible by the redundant strip length measurement, so that their accuracy can be increased.
  • the accuracy of the tape length measurement can be further increased in that, according to a further developed embodiment of the device according to the invention, for the tape length measurement, a laser Doppler velocimetry system is provided.
  • FIG. 1 illustrated embodiment of an apparatus for correcting the thickness of a metallic strip 1 during rolling has a rolling stand 2 with not shown adjusting elements for regulating the thickness of the belt 1, a deflection roller 3 and a take-up reel 4.
  • an LDV system 5 for measuring the strip length
  • an incremental encoder 6 on the take-up reel axis 7 and a radiator 8 and a detector 9 for radiometric determination of the strip thickness are shown for determining the strip thickness.
  • the Fig. 2a shows the basic sequence of the method for determining the mean strip thickness of a metallic strip 1 using an LDV system 5 and a take-up reel 4.
  • the LDV system 5 measures the tape length during winding of the tape 1 on the take-up reel 4, wherein the first layer of the tape 1 when winding a fixed by the take-up reel 4 radius r occupies.
  • Fig. 2b shows now in a sectional view a take-up reel 4 with several wound layers of a metallic strip 1.
  • the average layer spacing h of the wound strip 1 results from the difference in radius of the radii r m and r n and the number of layers wound between the radii, ie the associated Number of revolutions of the take-up reel 4.
  • H L n n ⁇ ⁇ - L m m ⁇ ⁇ n - m .
  • L n is the length running from an arbitrary starting point
  • n is the associated number of revolutions of the take-up reel 4
  • L m is a fixed length from the same starting point
  • m is the associated number of revolutions of the take-up reel 4 to the fixed length L m .
  • a non-contact and slip-free measurement with the LDV system 5 is preferable, since thus a much more accurate tape length measurement is made possible.
  • High-resolution incremental encoders 6, which are arranged on the winding hull 7, provide the associated number n or m of revolutions of the take-up reel.
  • the calculation of the mean strip thickness takes place after an adjustable strip length with the aid of the computer 10, which on the one hand displays the measured mean strip thickness via the display 11 and on the other hand forwards the value for the dynamic thickness correction to a first comparison device 12.
  • the value of the mean strip thickness is compared with the desired thickness 13 of the strip 1 and the difference is forwarded as a dynamic thickness deviation to a next comparison device 14.
  • the radiometric strip thickness 15 determined with the aid of the radiator 8 and the detector 9 is used to add the value of the dynamic thickness deviation to the comparison device 14 and fed to a further comparison device 17 as a dynamically corrected actual thickness 16. This now determines the controlled variable for the control of the adjusting elements 18 from the deviation of the dynamically corrected actual thickness 16 of the target thickness 13.
  • the value of the dynamic thickness correction during the rolling process already after short tape lengths, for example, after a wound tape length of about 50m, sufficient be accurately determined. Although this does not apply to the beginning of the rolling process, since in that case the fluctuations due to the winding process are still too great, a correction possibility of the radiometrically determined strip thickness 15 is available in the course of the rolling process, which is independent of the influencing variables of the radiometric strip thickness measurements , By excluding these influencing factors, the control of the adjusting elements of the roll stand 18 can be carried out much more accurately, which leads to a significant reduction in the strip thickness tolerances.
  • the block diagram of the control of a corresponding embodiment of a device for correcting the thickness of a metallic strip during rolling shows the Fig. 3 .
  • the parameters, quantities and conditions mentioned below are only to be regarded as an example configuration of the control, which may vary depending on the rolling stock to be produced.
  • Block diagram shown initially has a logical AND gate 19 with 6 inputs 20, 21, 22, 23, 24, 25 and an output 26.
  • the inputs 20 to 24 for example, the conditions as to whether the laser is functional, whether the target thickness is more than 0.8 mm, for example, whether data on the alloy of the alloy are stored in a table, whether manual or automatic mode is selected, and whether the belt speed is greater than, for example, 100 m / min, queried and used to unlock the thickness correction.
  • Other conditions can be considered via additional inputs on the AND gate 19.
  • the input 25 of the AND gate 19 is connected to the output of a logic OR gate 27, which in turn has two inputs 28 and 29, which are connected to the output of the comparison elements 30 and 31, respectively.
  • the comparison element 30 the actual value of the strip length 32 is compared with a calculated from the target thickness 33 via a function member 34 start value of the tape length 35 and an output signal to the OR gate 27 switched as soon as the actual value of the tape length 32 above a certain starting value of the tape length 35th lies.
  • the comparison element 31 compares, with the aid of the absolute element 38, the absolute value of the difference 39 determined between the target thickness 33 and the average strip thickness 37 determined by the differential element 36 with a value dependent on the target thickness 33. If the absolute deviation is less than, for example, 1% of the nominal thickness, the output of the comparison element 31 is switched on and a signal is applied to the input 29 of the OR element 27.
  • a signal is applied to the input 25 of the AND element 19. If the inputs 20 to 25 of the AND element 19 are connected, the output 41 of the logic circuit is set to "auto-correction switched on" via the output 26 of the AND element 19 with the aid of the set element 40. At the same time a signal is applied to the input 42 of the PID gate 43. The PID element 43 then determines the dynamic thickness correction 44 of the radiometrically measured actual thickness 46 of the strip from the control deviation applied in the form of the difference 39 between the desired thickness 33 and the average strip thickness 37 determined by the LDV method. By means of a comparator 46 connected to the PID element 43, however, the regulation of the PID element 43 can be prevented, provided that the deviation 39 is, for example, less than 1% of the nominal thickness 33.
  • the dynamic thickness correction 44 is then added to the measured actual thickness 45 and applied to the input 49 of a switch 50 as a corrected actual thickness 48.
  • the output 51 of the switch 50 is in turn connected directly to an input, not shown, the control of the control elements of the rolling stand.
  • the switch 50 connects the input 49 to the output 51 and the position elements of the rolling stands are controlled with the corrected actual thickness 48.
  • the value output via the output 51 is again compared with the setpoint thickness 33 and the control elements of the roll stand 2 are correspondingly controlled.

Claims (9)

  1. Procédé de correction de l'épaisseur d'une bande métallique lors du laminage avec une cage de laminoir comportant des éléments de réglage pour la régulation de l'épaisseur de la bande et un bobinoir, une épaisseur moyenne d'un tronçon de la bande étant déterminée à partir d'au moins une mesure de la longueur de la bande et de la mesure de la rotation correspondante du bobinoir, et les éléments de réglage de la cage de laminoir étant commandés au moins en fonction de l'épaisseur de bande moyenne du tronçon de bande,
    caractérisé en
    ce que l'épaisseur de la bande est mesurée en outre de façon radiométrique, les éléments de réglage de la cage de laminoir sont commandés en fonction d'une épaisseur de bande radiométrique corrigée avec l'épaisseur de bande moyenne et la longueur de la bande est mesurée par utilisation du procédé de vélocimétrie doppler à laser.
  2. Procédé selon la revendication 1,
    caractérisé en
    ce que la vitesse de rotation du bobinoir est mesurée par utilisation d'un capteur incrémentiel à haute résolution sur l'axe du bobinoir ou sur l'axe du moteur du bobinoir,
  3. Procédé selon l'une des revendications 1 à 2,
    caractérisé en
    ce que par le choix d'une pluralité de points de départ différents et de longueurs de bande à mesurer pour la détermination de l'épaisseur de bande moyenne, une pluralité de valeurs pour l'épaisseur de bande moyenne du même tronçon de bande est déterminée.
  4. Procédé selon la revendication 3,
    caractérisé en
    ce que les valeurs de l'épaisseur de bande moyenne du même tronçon de bande sont de plus lissées en fonction du diamètre actuel de la bande sur le bobinoir, avec une pondération variable.
  5. Procédé selon l'une des revendications 1 à 4,
    caractérisé en
    ce qu'il est procédé à au moins une mesure complémentaire et redondante de la longueur de la bande.
  6. Procédé selon la revendication 5,
    caractérisé en
    ce qu'en cas de défaillance d'une première mesure de longueur de bande utilisée pour déterminer l'épaisseur de bande moyenne, on commute automatiquement sur une mesure complémentaire et redondante de la longueur de la bande.
  7. Dispositif de correction de l'épaisseur d'une bande métallique (1) lors du laminage comportant au moins une cage de laminoir (2) avec des éléments de réglage pour la régulation de l'épaisseur de la bande, au moins un bobinoir (4), des moyens pour mesurer la longueur de la bande (5) et la rotation correspondante du bobinoir (6) ainsi que des moyens (18) prévus pour la commande des éléments de réglage de la cage de laminoir (2) en fonction d'une épaisseur de bande moyenne déterminée à partir de la longueur mesurée de la bande et de la rotation correspondante du bobinoir (4), en particulier pour la mise en oeuvre d'un procédé selon les revendications 1 à 6,
    caractérisé en
    ce que des moyens (8, 9) supplémentaires sont prévus pour la détermination radiométrique de l'épaisseur de la bande métallique (1) entre la cage de laminoir (2) et le bobinoir (3) et pour la mesure de la longueur de la bande il est prévu un système de vélocimétrie doppler à laser (5).
  8. Dispositif selon la revendication 7,
    caractérisé en
    ce que des moyens (5) sont prévus pour la mesure redondante de la longueur de la bande.
  9. Dispositif selon la revendication 7 ou 8,
    caractérisé en
    ce que des capteurs incrémentiels (6) à haute résolution sont prévus sur l'axe (7) du bobinoir ou sur l'axe du moteur du bobinoir.
EP03764965.4A 2002-07-20 2003-07-10 Correction dynamique d'epaisseur Expired - Lifetime EP1525061B2 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE10233118A DE10233118B3 (de) 2002-07-20 2002-07-20 Dynamische Dickenkorrektur
DE10233118 2002-07-20
PCT/EP2003/007468 WO2004009261A1 (fr) 2002-07-20 2003-07-10 Correction dynamique d'epaisseur

Publications (4)

Publication Number Publication Date
EP1525061A1 EP1525061A1 (fr) 2005-04-27
EP1525061B1 EP1525061B1 (fr) 2006-06-21
EP1525061B8 EP1525061B8 (fr) 2006-10-11
EP1525061B2 true EP1525061B2 (fr) 2014-07-09

Family

ID=30469021

Family Applications (1)

Application Number Title Priority Date Filing Date
EP03764965.4A Expired - Lifetime EP1525061B2 (fr) 2002-07-20 2003-07-10 Correction dynamique d'epaisseur

Country Status (13)

Country Link
US (1) US7185520B2 (fr)
EP (1) EP1525061B2 (fr)
JP (1) JP2005537932A (fr)
KR (1) KR100699554B1 (fr)
AT (1) ATE330723T1 (fr)
AU (1) AU2003257445A1 (fr)
BR (1) BR0312813B1 (fr)
CA (1) CA2497681C (fr)
DE (2) DE10233118B3 (fr)
EA (1) EA006530B1 (fr)
ES (1) ES2268431T5 (fr)
WO (1) WO2004009261A1 (fr)
ZA (1) ZA200500534B (fr)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102006057476A1 (de) * 2006-06-17 2007-12-20 Sms Demag Ag Verfahren und Vorrichtung zum Analysieren einer Schicht eines Hilfsstoffes auf einem Umformgut
DE102010014384A1 (de) * 2010-04-06 2011-10-06 Wafios Ag Richt- und Abschneidemaschine
CN102380515B (zh) * 2011-09-16 2014-02-12 中冶南方工程技术有限公司 同步传输模型及其方法
CN106461233A (zh) * 2013-11-18 2017-02-22 优尼特智能科技有限公司 厨房油烟机装置
EP3566790B1 (fr) * 2018-05-08 2021-01-06 Muhr und Bender KG Procédé de réglage dynamique d'écartement entre cylindres lors du laminage flexible de bandes métalliques

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4052599A (en) † 1974-04-25 1977-10-04 Bethlehem Steel Corporation Method and apparatus for determining coil sheet length
US4159572A (en) † 1977-11-02 1979-07-03 United States Steel Corporation Dynamic gage averaging and length determining device and method for continuous sheet material
EP0609172B1 (fr) † 1993-01-27 1997-10-22 Benninger AG Procédé pour la mesure de largeurs de matériau enroulé sur une bobine

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE566575A (fr) * 1957-04-08
US3015974A (en) * 1958-09-18 1962-01-09 Gen Electric Automatic control system for rolling mills and adjustable dies
GB945058A (en) * 1959-03-24 1963-12-18 Davy And United Instr Ltd Improvements in or relating to the control of the thickness of material
FR1513585A (fr) * 1967-01-06 1968-02-16 Spidem Ste Nle Procédé et dispositif de contrôle ou de mesure de l'épaisseur d'une bande venants'enrouler en mouvement continu sur un tambour
US3427836A (en) * 1967-03-16 1969-02-18 Gen Dynamics Corp Thickness reduction control system
US3636743A (en) * 1970-06-15 1972-01-25 Allegheny Ludlum Ind Inc Rolling mill control system
JPS57181711A (en) * 1981-05-01 1982-11-09 Kawasaki Steel Corp Automatically controlling method of draft of rolling mill
US4548063A (en) * 1984-06-25 1985-10-22 General Electric Company Tension control in a metal rolling mill
JPH0671614B2 (ja) * 1985-11-21 1994-09-14 株式会社日立製作所 自動板厚制御装置
JPH01113102A (ja) * 1987-10-27 1989-05-01 Sumitomo Metal Ind Ltd 厚鋼板の幅出し圧延方法
US4905491A (en) * 1988-04-11 1990-03-06 Aluminum Company Of America Unwind/rewind eccentricity control for rolling mills

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4052599A (en) † 1974-04-25 1977-10-04 Bethlehem Steel Corporation Method and apparatus for determining coil sheet length
US4159572A (en) † 1977-11-02 1979-07-03 United States Steel Corporation Dynamic gage averaging and length determining device and method for continuous sheet material
EP0609172B1 (fr) † 1993-01-27 1997-10-22 Benninger AG Procédé pour la mesure de largeurs de matériau enroulé sur une bobine

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
MARIE-LINE: "Les capteurs et codeurs angulaires", MESURES 731, January 2001 (2001-01-01), pages 76 - 78 †

Also Published As

Publication number Publication date
WO2004009261A1 (fr) 2004-01-29
EP1525061B8 (fr) 2006-10-11
JP2005537932A (ja) 2005-12-15
ES2268431T3 (es) 2007-03-16
US7185520B2 (en) 2007-03-06
CA2497681C (fr) 2009-05-12
DE10233118B3 (de) 2004-04-29
ATE330723T1 (de) 2006-07-15
US20060123861A1 (en) 2006-06-15
ES2268431T5 (es) 2014-12-01
EA200500221A1 (ru) 2005-08-25
KR100699554B1 (ko) 2007-03-26
BR0312813A (pt) 2005-04-19
EA006530B1 (ru) 2006-02-24
ZA200500534B (en) 2006-05-31
AU2003257445A8 (en) 2004-02-09
CA2497681A1 (fr) 2004-01-29
AU2003257445A1 (en) 2004-02-09
BR0312813B1 (pt) 2011-08-23
DE50303974D1 (de) 2006-08-03
KR20050038006A (ko) 2005-04-25
EP1525061A1 (fr) 2005-04-27
EP1525061B1 (fr) 2006-06-21

Similar Documents

Publication Publication Date Title
EP0373422B1 (fr) Appareil pour surveiller la qualité de soudures électriques
DE2248364C2 (de) Verfahren und Vorrichtung zur Korrektur des Bildstands in einer bahnförmiges Material bearbeitenden Maschine
DE3036997C2 (fr)
EP0335080A2 (fr) Procédé et dispositif pour déterminer la grosseur de bobines à spires croisées et pour l'utilisation des résultats
DE2811778C2 (fr)
DE2950003A1 (de) Verfahren zur regelung der foliendicke an einer blasfolien-extruderanlage
EP1525061B2 (fr) Correction dynamique d'epaisseur
EP3437748B1 (fr) Réglage de débit massique dans les installations de laminage
EP3122483B1 (fr) Procédé permettant de positionner un galet de dressage d'une installation de dressage à galets
EP2183064B1 (fr) Cage de laminage a chaud comprenant un enrouleur et un dispositif pour déterminer une température d'un produit laminé à chaud, et procédé de commande et/ou de régulation d'une température d'un produit laminé à chaud
DE19731980A1 (de) Verfahren zur Steuerung und Voreinstellung eines Walzgerüstes oder einer Walzstraße zum Walzen eines Walzbandes
DE1126492B (de) Einrichtung zur Regelung der Banddicke in kontinuierlichen Warmwalzwerken
DE102004005011B4 (de) Regelverfahren und Regler für ein Walzgerüst
DE2263674A1 (de) Verfahren zur herstellung von bandfoermigem walzgut unter verwendung eines rechners
DE10296719B4 (de) Verfahren zum Steuern einer Wickeleinrichtung
EP1650147B1 (fr) Méthode pour controler le répérage d'une découpeuse dans une machine rotative d'impression
DE2329120A1 (de) Verfahren und einrichtung zur gewinnung einer die istwerte einer messbaren eigenschaft eines materialstreifens in dessen querrichtung darstellenden wertefolge
DE3637043A1 (de) Verfahren zum vorausbestimmten einhalten enger dickentoleranzen beim walzen von walzgut in warmbandstrassen
DE3321104C2 (fr)
DE3807399C2 (fr)
EP3307513B1 (fr) Procédé de surveillance en ligne de la qualité d'une feuille et boudineuse pour feuilles pourvue d'un dispositif de surveillance en ligne de la qualité d'une feuille
EP0272204B1 (fr) Procédé de réglage d'épaisseur de paroi de tube
EP0372439A2 (fr) Méthode de commande de processus pour un train de laminage continu
EP3877145B1 (fr) Procédé et dispositif permettant de contrôler la fente de buse d'une buse de sortie d'une machine de production de feuilles plates
DE3819571C2 (fr)

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 20050114

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PT RO SE SI SK TR

AX Request for extension of the european patent

Extension state: AL LT LV MK

RIN1 Information on inventor provided before grant (corrected)

Inventor name: PAMPEL, MICHAEL

Inventor name: PAMPEL, GUENTER

Inventor name: JEUDE, MANFRED,DR.

DAX Request for extension of the european patent (deleted)
GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

RIN1 Information on inventor provided before grant (corrected)

Inventor name: PAMPEL, MICHAEL

Inventor name: JEUDE, MANFRED, DR.

Inventor name: PAMPEL, GUENTER

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PT RO SE SI SK TR

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT;WARNING: LAPSES OF ITALIAN PATENTS WITH EFFECTIVE DATE BEFORE 2007 MAY HAVE OCCURRED AT ANY TIME BEFORE 2007. THE CORRECT EFFECTIVE DATE MAY BE DIFFERENT FROM THE ONE RECORDED.

Effective date: 20060621

Ref country code: CZ

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20060621

Ref country code: SI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20060621

Ref country code: NL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20060621

Ref country code: FI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20060621

Ref country code: IE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20060621

Ref country code: RO

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20060621

Ref country code: SK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20060621

REG Reference to a national code

Ref country code: GB

Ref legal event code: FG4D

Free format text: NOT ENGLISH

REG Reference to a national code

Ref country code: CH

Ref legal event code: EP

REG Reference to a national code

Ref country code: IE

Ref legal event code: FG4D

Free format text: LANGUAGE OF EP DOCUMENT: GERMAN

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: MC

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20060731

REF Corresponds to:

Ref document number: 50303974

Country of ref document: DE

Date of ref document: 20060803

Kind code of ref document: P

RAP2 Party data changed (patent owner data changed or rights of a patent transferred)

Owner name: ALUMINIUM NORF GMBH

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20060921

Ref country code: SE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20060921

GBT Gb: translation of ep patent filed (gb section 77(6)(a)/1977)

Effective date: 20060923

NLT2 Nl: modifications (of names), taken from the european patent patent bulletin

Owner name: ALUMINIUM NORF GMBH

Effective date: 20060920

REG Reference to a national code

Ref country code: GR

Ref legal event code: EP

Ref document number: 20060403182

Country of ref document: GR

REG Reference to a national code

Ref country code: GB

Ref legal event code: 711B

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: PT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20061121

NLV1 Nl: lapsed or annulled due to failure to fulfill the requirements of art. 29p and 29m of the patents act
REG Reference to a national code

Ref country code: IE

Ref legal event code: FD4D

ET Fr: translation filed
REG Reference to a national code

Ref country code: GB

Ref legal event code: 711K

PLBI Opposition filed

Free format text: ORIGINAL CODE: 0009260

PLAB Opposition data, opponent's data or that of the opponent's representative modified

Free format text: ORIGINAL CODE: 0009299OPPO

REG Reference to a national code

Ref country code: ES

Ref legal event code: FG2A

Ref document number: 2268431

Country of ref document: ES

Kind code of ref document: T3

26 Opposition filed

Opponent name: ALCAN FRANCE S.A.S

Effective date: 20070307

R26 Opposition filed (corrected)

Opponent name: ALCAN FRANCE S.A.S

Effective date: 20070307

PLAX Notice of opposition and request to file observation + time limit sent

Free format text: ORIGINAL CODE: EPIDOSNOBS2

PLAF Information modified related to communication of a notice of opposition and request to file observations + time limit

Free format text: ORIGINAL CODE: EPIDOSCOBS2

PLBB Reply of patent proprietor to notice(s) of opposition received

Free format text: ORIGINAL CODE: EPIDOSNOBS3

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: AT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20060710

BECN Be: change of holder's name

Owner name: *ALUMINIUM NORF G.M.B.H.

Effective date: 20060621

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: CH

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20070731

Ref country code: LI

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20070731

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: EE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20060621

Ref country code: BG

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20060921

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: TR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20060621

Ref country code: LU

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20060710

Ref country code: HU

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20061222

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: CY

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20060621

APAH Appeal reference modified

Free format text: ORIGINAL CODE: EPIDOSCREFNO

APBM Appeal reference recorded

Free format text: ORIGINAL CODE: EPIDOSNREFNO

APBP Date of receipt of notice of appeal recorded

Free format text: ORIGINAL CODE: EPIDOSNNOA2O

APBQ Date of receipt of statement of grounds of appeal recorded

Free format text: ORIGINAL CODE: EPIDOSNNOA3O

PLAB Opposition data, opponent's data or that of the opponent's representative modified

Free format text: ORIGINAL CODE: 0009299OPPO

R26 Opposition filed (corrected)

Opponent name: ALCAN FRANCE S.A.S

Effective date: 20070307

PLAB Opposition data, opponent's data or that of the opponent's representative modified

Free format text: ORIGINAL CODE: 0009299OPPO

R26 Opposition filed (corrected)

Opponent name: RIO TINTO FRANCE S.A.S.

Effective date: 20070307

PLAB Opposition data, opponent's data or that of the opponent's representative modified

Free format text: ORIGINAL CODE: 0009299OPPO

R26 Opposition filed (corrected)

Opponent name: RIO TINTO FRANCE S.A.S.

Effective date: 20070307

APBU Appeal procedure closed

Free format text: ORIGINAL CODE: EPIDOSNNOA9O

PUAH Patent maintained in amended form

Free format text: ORIGINAL CODE: 0009272

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: PATENT MAINTAINED AS AMENDED

27A Patent maintained in amended form

Effective date: 20140709

AK Designated contracting states

Kind code of ref document: B2

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PT RO SE SI SK TR

REG Reference to a national code

Ref country code: DE

Ref legal event code: R102

Ref document number: 50303974

Country of ref document: DE

REG Reference to a national code

Ref country code: DE

Ref legal event code: R102

Ref document number: 50303974

Country of ref document: DE

Effective date: 20140709

REG Reference to a national code

Ref country code: DE

Ref legal event code: R082

Ref document number: 50303974

Country of ref document: DE

Representative=s name: COHAUSZ & FLORACK PATENT- UND RECHTSANWAELTE P, DE

REG Reference to a national code

Ref country code: ES

Ref legal event code: DC2A

Ref document number: 2268431

Country of ref document: ES

Kind code of ref document: T5

Effective date: 20141201

REG Reference to a national code

Ref country code: GR

Ref legal event code: EP

Ref document number: 20140402003

Country of ref document: GR

Effective date: 20141121

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 14

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 15

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 16

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 20220621

Year of fee payment: 20

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GR

Payment date: 20220623

Year of fee payment: 20

Ref country code: BE

Payment date: 20220621

Year of fee payment: 20

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 20220622

Year of fee payment: 20

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: ES

Payment date: 20220801

Year of fee payment: 20

Ref country code: DE

Payment date: 20220621

Year of fee payment: 20

REG Reference to a national code

Ref country code: DE

Ref legal event code: R071

Ref document number: 50303974

Country of ref document: DE

REG Reference to a national code

Ref country code: ES

Ref legal event code: FD2A

Effective date: 20230726

REG Reference to a national code

Ref country code: BE

Ref legal event code: MK

Effective date: 20230710

REG Reference to a national code

Ref country code: GB

Ref legal event code: PE20

Expiry date: 20230709

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Free format text: LAPSE BECAUSE OF EXPIRATION OF PROTECTION

Effective date: 20230709

Ref country code: ES

Free format text: LAPSE BECAUSE OF EXPIRATION OF PROTECTION

Effective date: 20230711