EP2195126B1 - Rolling device and method for the operation thereof - Google Patents
Rolling device and method for the operation thereof Download PDFInfo
- Publication number
- EP2195126B1 EP2195126B1 EP08802476A EP08802476A EP2195126B1 EP 2195126 B1 EP2195126 B1 EP 2195126B1 EP 08802476 A EP08802476 A EP 08802476A EP 08802476 A EP08802476 A EP 08802476A EP 2195126 B1 EP2195126 B1 EP 2195126B1
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- EP
- European Patent Office
- Prior art keywords
- rolling
- planarity
- setting
- rolls
- rolling stock
- 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.)
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- 238000005096 rolling process Methods 0.000 title claims description 81
- 238000000034 method Methods 0.000 title claims description 11
- 239000000463 material Substances 0.000 claims description 23
- 238000005259 measurement Methods 0.000 claims description 8
- 230000001105 regulatory effect Effects 0.000 claims description 6
- 238000006073 displacement reaction Methods 0.000 claims description 5
- 239000002184 metal Substances 0.000 claims description 4
- 238000005452 bending Methods 0.000 claims description 3
- 238000005461 lubrication Methods 0.000 claims description 3
- 230000001276 controlling effect Effects 0.000 claims 2
- 230000004913 activation Effects 0.000 claims 1
- 238000002788 crimping Methods 0.000 claims 1
- 238000001514 detection method Methods 0.000 claims 1
- 230000006735 deficit Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
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
- B21B37/28—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
- B21B37/00—Control devices or methods specially adapted for metal-rolling mills or the work produced thereby
- B21B37/28—Control of flatness or profile during rolling of strip, sheets or plates
- B21B37/30—Control of flatness or profile during rolling of strip, sheets or plates using roll camber control
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B37/00—Control devices or methods specially adapted for metal-rolling mills or the work produced thereby
- B21B37/28—Control of flatness or profile during rolling of strip, sheets or plates
- B21B37/30—Control of flatness or profile during rolling of strip, sheets or plates using roll camber control
- B21B37/32—Control of flatness or profile during rolling of strip, sheets or plates using roll camber control by cooling, heating or lubricating the rolls
-
- 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
- B21B37/38—Control of flatness or profile during rolling of strip, sheets or plates using roll bending
-
- 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
- B21B37/40—Control of flatness or profile during rolling of strip, sheets or plates using axial shifting of the rolls
-
- 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
- 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
- B21B37/44—Control of flatness or profile during rolling of strip, sheets or plates using heating, lubricating or water-spray cooling of the product
-
- 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
-
- 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
Definitions
- the invention relates to a rolling device according to the preamble of claim 1 and a method for its operation according to claim 5.
- Rollers are well known in the art.
- such rolling devices are known in which a pair of work rolls are acted upon by at least two opposite the work rolls larger support rollers for receiving the rolling forces.
- the flatness of the rolling stock may vary, whereby a material backlog can arise immediately before the nip between the work rolls. If the material backlog can not be compensated in time and precisely enough, unevenness in the flatness of the rolled material will result, which leads to a loss in quality of the rolling stock and which may make the rolling stock completely unsuitable for some applications.
- the DE 27 43 130 discloses a rolling apparatus with thickness measuring devices in front of and behind the nip, with which a predefinable thickness tolerance can be achieved. However, so that the effect of the material backlog can not be resolved, because the sensors in turn is located far away from the nip. In addition, a local thickness deviation can be meaningful only in conjunction with an accurate profile reference. An unplanarity can not be sufficiently qualified.
- the object is achieved with respect to the rolling device, by a rolling device according to the features of claim 1 with rolling device with at least two work rolls and a nip between the work rolls for performing and rolling a rolling stock, such as a belt preferably made of metal, and optionally an arrangement of Support rollers, further comprising at least one measuring device is provided for measuring a backlog of the rolling stock of the rolling stock in front of the nip, further wherein a control or regulating unit is provided, which actuates actuators for adjusting the flatness of the rolling stock due to the signals of the measuring device.
- a planheft measuring device which also provides signals for the control or regulating unit, whereupon it controls in response to the signals of the measuring device and the flatness measuring device, the actuators for adjusting the flatness of the rolling stock ,
- an actuator for adjusting the flatness of the rolling stock an actuator for adjusting the inclination of the work rolls and / or the intermediate rolls and / or the backup rolls, the bending of the work rolls and / or the intermediate rolls, and / or the backup rolls, the Axial displacement of the work rolls and / or the intermediate rolls, for example, in the context of a Continuously Variable Crown (CVC) shift, a minimum quantity lubrication and / or a temperature control or temperature control of the belt and / or the work rolls.
- CVC Continuously Variable Crown
- the at least one measuring device for measuring a backlog of the rolling material of the rolling stock in front of the roll gap is an optically or mechanically measuring measuring device.
- the object with respect to the method is achieved by a method for operating a rolling device according to claim 5.
- the advantages of this method correspond to the advantages stated above with respect to the device.
- the at least one measuring device for measuring a backlog of the rolling material of the rolling stock before the roll gap detects the backlog optically or mechanically.
- the FIG. 1 schematically shows a rolling device 1 with two work rolls 2,3 between which a roll gap 4 is provided and between which a rolling stock 5, such as a strip 6 or metal strip, in particular a steel strip is rolled.
- the work rolls 2, 3 are advantageously loaded in a known manner with support rolls 7, 8 in each case.
- the backlog arises because at least temporarily more material of the rolling stock per unit time before the nip is transported or pressed than can be rolled during the same time unit and can pass through the nip.
- the backwater is created in areas of local belt voltage drop.
- the device 1 further comprises at least one measuring device 11 or at least one sensor which detects a material backlog 10 at the strip inlet of the roll gap.
- This at least one measuring device 11 is a preferably mechanically measuring or non-contact measuring sensor.
- the non-contact measuring sensor is preferably an optically measuring sensor, which optically detects the partly even only local material backlog 10.
- the backlog in the form of a local overreduction is visible as a drop in the belt tension in these areas to ripple in front of the nip and visible to the measuring device.
- the sensor or the measuring device 11 is arranged on the input side of the roll gap 4 and preferably detects near the roll gap 4 or in the immediate vicinity of the roll gap 4, the material backlog 10, for example, due to a surface variation of the rolling stock 5, such as the belt 6.
- the sensor is so stated that the measurement of the material backpressure in front of the nip is made in a range of about one meter or less in front of the nip, preferably detecting a measurement of the material backlog in the range of about 200 to 300 mm in front of the nip.
- a flatness measuring device such as a flatness measuring roller 12
- a flatness measuring device which detects the flatness of the belt 6 behind the rolling device 1 with the nip 4.
- the signals of the backflow measurement sensor 11 or the signals of the backflow measurement sensor 11 and the flatness measurement device 12 are fed to a control or regulating unit 13 which, based on the available input data, outputs at least one drive signal 14 or a plurality of drive signals for the actuators 15, 16, 17, 18 and 19, such as flatness actuators, of the rolling arrangement, by means of which the actuators 15, 16 17, 18 and 19 are controlled to control or control the flatness of the rolling stock.
- the signals from the sensors 10 and 11 are fed to the control or regulating unit 13, wherein a weighting can be carried out between the two sensors or their signals, each of which can be acted upon by a preselectable additive summand and a multiplicative factor and / or individually or both Signals can be acted upon with delay elements and / or be acted upon with filters.
- a stable strip running under stable rolling conditions can be achieved, with prompt engagement can be made when a backwater 10 of the rolling material is detected in front of the nip 4.
- a pass of 300 mm can be made in 0.3 seconds, so that a quick response in the range of tenths of a second or less is advantageous to control the material backlog before the nip.
- a quick control intervention or control intervention in the case of a changing band profile, with a changed flatness, for example at the beginning of the band, at the band end or in the case of a weld seam can be undertaken.
- CVC Continuously Variable Crown
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Control Of Metal Rolling (AREA)
- Metal Rolling (AREA)
- Casting Or Compression Moulding Of Plastics Or The Like (AREA)
Description
Die Erfindung betrifft eine Walzvorrichtung nach dem Oberbegriff von Anspruch 1 und ein Verfahren für deren Betrieb nach Anspruch 5.The invention relates to a rolling device according to the preamble of
Walzvorrichtungen sind im Stand der Technik hinlänglich bekannt. Dabei sind beispielsweise solche Walzvorrichtungen bekannt, bei welchen ein Paar von Arbeitswalzen von zumindest zwei gegenüber den Arbeitswalzen größeren Stützwalzen zur Aufnahme der Walzkräfte beaufschlagt werden. Bei solchen Walzvorrichtungen ist es weiterhin bekannt, dass die Planheit des Walzguts variieren kann, wodurch ein Materialrückstau unmittelbar vor dem Walzspalt zwischen den Arbeitswalzen entstehen kann. Kann der Materialrückstau nicht rechtzeitig und genau genug ausgeglichen werden, entstehen Ungleichmäßigkeiten in der Planheit des gewalzten Materials, was zu Qualitätseinbußen des Walzguts führt und wodurch das Walzgut ggf. für manche Anwendungsfälle gänzlich ungeeignet wird.Rollers are well known in the art. In this case, for example, such rolling devices are known in which a pair of work rolls are acted upon by at least two opposite the work rolls larger support rollers for receiving the rolling forces. In such rolling devices, it is also known that the flatness of the rolling stock may vary, whereby a material backlog can arise immediately before the nip between the work rolls. If the material backlog can not be compensated in time and precisely enough, unevenness in the flatness of the rolled material will result, which leads to a loss in quality of the rolling stock and which may make the rolling stock completely unsuitable for some applications.
Im Stand der Technik sind Walzvorrichtungen bekannt, bei welchen Planheitsmessungen mittels Zugrollen zur Ermittlung der Zugspannungsverteilung durchgeführt werden. Solche Zugrollen sind jedoch typischer Weise weit von den Arbeitswalzen entfernt angeordnet, so dass der Materialrückstau vor dem Walzspalt damit nicht zuverlässig ermittelt werden kann. Eine solche Walzvorrichtung ist beispielsweise durch die
Die
Andere Walzvorrichtungen messen die Planheit lediglich in einer weiteren Entfernung hinter dem Walzspalt, was dazu führt, dass die Ergebnisse zur Regelung der Planheit durch Planheitsstellglieder verwendet werden. Allerdings wirken sich Fehleinstellungen des Walzgerüsts nicht immer genügend auf die auslaufseitigen Messungen aus oder es kann aufgrund der dadurch entstehenden Verzögerung nicht schnell genug auf Profil- oder Planheitsänderungen reagiert werden kann, so dass die ermittelten Planheitsabweichungen nicht mehr korrigiert werden können, weil sie bereits hinter dem Walzspalt entstanden sind.Other rolling devices only measure the flatness at a further distance beyond the nip, which results in the results being used by flatness actuators to control planarity. However, misalignments of the roll stand do not always have sufficient effect on the outlet side measurements or it can not respond fast enough due to the resulting delay on profile or flatness changes, so that the calculated flatness deviations can not be corrected because they are already behind the Rolling gap have arisen.
Es ist die Aufgabe der vorliegenden Erfindung, eine Walzvorrichtung mit einer Messvorrichtung und ein Verfahren hierfür zu schaffen, bei welcher ein Materialrückstau sicher erkannt wird und dadurch eine Regelung/Steuerung zur Vermeidung von dadurch entstehenden Planheitsdefiziten bis hin zu instabilen Walzzuständen (Kneifer, Überwalzungen u. ä.) durchführbar ist.It is the object of the present invention to provide a rolling device with a measuring device and a method for this, in which a material backlog is reliably detected and thereby control / control to avoid consequent flatness deficits up to unstable rolling conditions (pinchers, Überwalzungen u. Ä.) Is feasible.
Erfindungsgemäß wird die Aufgabe bezüglich der Walzvorrichtung erreicht, durch eine Walzvorrichtung gemäß der Merkmalen von Anspruch 1 mit Walzvorrichtung mit zumindest zwei Arbeitswalze und einem Walzspalt zwischen den Arbeitswalzen zum Durchführen und Walzen eines Walzguts, wie beispielsweise eines Bandes vorzugsweise aus Metall, und gegebenenfalls einer Anordnung von Stützwalzen, wobei weiterhin zumindest eine Messvorrichtung vorgesehen ist zum Messen eines Rückstaus des Walzmaterials des Walzguts vor dem Walzspalt, wobei weiterhin eine Steuer- oder Regeleinheit vorgesehen ist, welche aufgrund der Signale der Messvorrichtung Stellglieder zur Einstellung der Planheit des Walzguts ansteuert.According to the invention the object is achieved with respect to the rolling device, by a rolling device according to the features of
Dabei ist es vorteilhaft, wenn weiterhin nach dem Walzspalt eine Planheftsmessvorrichtung vorgesehen ist, welche ebenfalls Signale für die Steuer- oder Regeleinheit zur Verfügung stellt, worauf hin diese im Ansprechen auf die Signale der Messvorrichtung und der Planheitsmessvorrichtung die Stellglieder zur Einstellung der Planheit des Walzguts ansteuert.It is advantageous if, after the nip, a planheft measuring device is further provided, which also provides signals for the control or regulating unit, whereupon it controls in response to the signals of the measuring device and the flatness measuring device, the actuators for adjusting the flatness of the rolling stock ,
Auch ist es zweckmäßig, wenn ein Stellglied zur Einstellung der Planheit des Walzguts ein Stellglied zur Einstellung der Schräglage der Arbeitswalzen und/oder der Zwischenwalzen und/oder der Stützwalzen, der Biegung der Arbeitswalzen und/oder der Zwischenwalzen, und/oder der Stützwalzen, der Axialverschiebung der Arbeitswalzen und/oder der Zwischenwalzen, beispielsweise im Rahmen einer Continuously Variable Crown-(CVC)-Verschiebung, einer Minimalmengenschmierung und/oder einer Temperatursteuerung oder Temperaturregelung des Bandes und/oder der Arbeitswalzen ist. Dadurch kann die gewünschte Planheit bevorzugt beeinflusst und eingestellt werden.It is also useful if an actuator for adjusting the flatness of the rolling stock, an actuator for adjusting the inclination of the work rolls and / or the intermediate rolls and / or the backup rolls, the bending of the work rolls and / or the intermediate rolls, and / or the backup rolls, the Axial displacement of the work rolls and / or the intermediate rolls, for example, in the context of a Continuously Variable Crown (CVC) shift, a minimum quantity lubrication and / or a temperature control or temperature control of the belt and / or the work rolls. As a result, the desired flatness can preferably be influenced and adjusted.
Dabei ist es vorzugsweise vorteilhaft, wenn die zumindest eine Messvorrichtung zum Messen eines Rückstaus des Walzmaterials des Walzguts vor dem Walzspalt eine optisch oder mechanisch messende Messvorrichtung ist.In this case, it is preferably advantageous if the at least one measuring device for measuring a backlog of the rolling material of the rolling stock in front of the roll gap is an optically or mechanically measuring measuring device.
Erfindungsgemäß wird die Aufgabe bezüglich des Verfahrens erreicht, durch ein Verfahren zum Betreiben einer Walzvorrichtung gemäß Anspruch 5. Die Vorteile dieses Verfahrens entsprechen den oben mit Bezug auf die Vorrichtung angegebenen Vorteilen.According to the invention, the object with respect to the method is achieved by a method for operating a rolling device according to
Auch ist es zweckmäßig, wenn die zumindest eine Messvorrichtung zum Messen eines Rückstaus des Walzmaterials des Walzguts vor dem Walzspalt den Rückstau optisch oder mechanisch detektiert.It is also expedient if the at least one measuring device for measuring a backlog of the rolling material of the rolling stock before the roll gap detects the backlog optically or mechanically.
Vorteilhafte Weiterbildungen sind in den Unteransprüchen beschrieben.Advantageous developments are described in the subclaims.
Nachstehend wird die Erfindung auf der Grundlage eines Ausführungsbeispiels anhand der Zeichnungen näher erläutert. Es zeigt:
Figur 1- eine schematische Darstellung einer Walzvorrichtung mit Messvorrichtung.
- FIG. 1
- a schematic representation of a rolling device with measuring device.
Die
Die Vorrichtung 1 weist weiterhin zumindest eine Messvorrichtung 11 oder zumindest ein Sensor auf, welcher einen Materialrückstau 10 am Bandeinlauf des Walzspalts detektiert. Diese zumindest eine Messvorrichtung 11 ist ein vorzugsweise mechanisch messender oder berührungslos messender Sensor. Der berührungslos messende Sensor ist vorzugsweise ein optisch messender Sensor, der den zum Teil auch nur lokalen Materialrückstau 10 optisch erkennt. Der Rückstau in Form einer lokalen Überreduktion ist als Abfall der Bandspannung in diesen Bereichen bis hin zur Welligkeit vor dem Walzspalt sichtbar und für die Messvorrichtung erkennbar.The
Der Sensor bzw. die Messvorrichtung 11 ist an der Eingangsseite des Walzspalts 4 angeordnet und erkennt vorzugsweise nahe dem Walzspalt 4 oder in unmittelbarer Nähe des Walzspalts 4 den Materialrückstau 10 beispielsweise aufgrund einer Oberflächenvariation des Walzguts 5, wie des Bandes 6. Der Sensor ist dabei derart ausgeführt, dass die Messung des Materialrückstaus vor dem Walzspalt etwa in einem Bereich von einem Meter oder weniger vor dem Walzspalt durchgeführt wird, wobei vorzugsweise eine Messung des Materialrückstaus im Bereich von etwa 200 bis 300 mm vor dem Walzspalt detektiert wird.The sensor or the
Ausgangsseitig ist nach dem Walzspalt 4, in Walzrichtung betrachtet, vorzugsweise eine Planheitsmessvorrichtung, wie eine Planheitsmessrolle 12, vorgesehen, welche die Planheit des Bandes 6 hinter der Walzvorrichtung 1 mit dem Walzspalt 4 erkennt.On the output side, after the nip 4, viewed in the rolling direction, preferably a flatness measuring device, such as a
Die Signale des Sensors 11 zur Messung des Rückstaus oder die Signale des Sensors 11 zur Messung des Rückstaus und der Planheitsmessvorrichtung 12 werden einer Steuer- oder Regeleinheit 13 zugeführt, welche anhand der verfügbaren Eingangsdaten zumindest ein Ansteuersignal 14 oder eine Mehrzahl von Ansteuersignalen für die Stellglieder 15, 16, 17, 18 und 19, wie Planheitsstellglieder, der Walzanordnung ausgibt, mittels welchen die Stellglieder 15, 16, 17, 18 und 19 angesteuert werden, um die Planheit des Walzguts zu regeln oder zu steuern.The signals of the
Die Signale der Sensoren 10 und 11 werden der Steuer- oder Regeleinheit 13 zugeführt, wobei zwischen den beiden Sensoren bzw. deren Signalen eine Gewichtung durchgeführt werden kann, die jeweils mit einem vorwählbaren additiven Summanden und einem multiplikativen Faktor beaufschlagbar sind und/oder einzeln oder beide Signale mit Verzögerungsgliedern beaufschlagbar sind und/oder mit Filtern beaufschlagbar sind.The signals from the
Durch die Erfassung des Rückstaus 10 vor dem Walzspalt 4 und/oder des Rückstaus 10 vor dem Walzspalt 4 und der Planheit hinter dem Walzspalt kann ein stabiler Bandlauf bei stabilen Walzbedingungen erzielt werden, wobei zeitnah ein Eingriff vorgenommen werden kann, wenn ein Rückstau 10 des zu walzenden Materials vor dem Walzspalt 4 detektiert wird. Zeitnah bedeutet dabei vorzugsweise, dass die Regelung bzw. Steuerung in Echtzeit, also ohne große Zeitverzögerung, d. h. im Bereich von ca. 1 Sekunde oder weniger bis in den Bereich von Bruchteilen einer Sekunde Zeitverzögerung erfolgt. Bei einer Bandgeschwindigkeit von 60 m / min kann ein Durchlauf von 300 mm in 0,3 Sekunden erfolgen, so dass eine schnelle Rückmeldung im Bereich von Zehntelsekunden oder weniger vorteilhaft ist, um den Materialrückstau vor dem Walzspalt auszuregeln. Dadurch kann ein schneller Steuerungseingriff bzw. Regelungseingriff bei sich veränderndem Bandprofil, bei veränderter Planheit beispielsweise am Bandanfang, am Bandende oder bei einer Schweißnaht vorgenommen werden.By detecting the
Bevorzugt sind die Stellglieder 15 bis 19 Stellglieder zur Einstellung der Schräglage der Arbeitswalzen 2,3 und/oder der Stützwalzen 7,8 , der Biegung der Arbeitswalzen 2,3 und/oder Zwischenwalzen (Sexto-Bauart) und/oder der Stützwalzen 7,8, der Axialverschiebung der Arbeitswalzen 2,3 und/oder Zwischenwalzen (Sexto-Bauart) im Rahmen einer so genannten Continuously Variable Crown-(CVC)-Verschiebung, einer Minimalmengenschmierung oder einer Temperatursteuerung oder Temperaturregelung des Bandes und/oder der Arbeitswalzen.Preferably, the
- 11
- Walzvorrichtungrolling device
- 22
- ArbeitswalzeStripper
- 33
- ArbeitswalzeStripper
- 44
- Walzspaltnip
- 55
- Walzgutrolling
- 66
- Bandtape
- 77
- Stützwalzesupporting roll
- 88th
- Stützwalzesupporting roll
- 99
- Walzrichtungrolling direction
- 1010
- Materialrückstaumaterial backlog
- 1111
- Messvorrichtungmeasuring device
- 1212
- PlanheitsmessrolleFlatness roll
- 1313
- Steuer- oder RegeleinheitControl unit
- 1414
- Ansteuersignalcontrol signal
- 1515
- Stellgliedactuator
- 1616
- Stellgliedactuator
- 1717
- Stellgliedactuator
- 1818
- Stellgliedactuator
- 1919
- Stellgliedactuator
Claims (9)
- Rolling device (1) with at least two working rolls (2, 3) and a rolling gap (4) between the working rolls (2, 3) for guidance through and rolling of rolling stock (5) such as, for example, a strip (6) preferably of metal, and optionally an arrangement of backing rolls (7, 8), characterised in that in addition at least one measuring device (11) is provided for measuring backward slip of the rolling material of the rolling stock in front of the rolling gap (4), wherein further a controlling or regulating unit (13) is provided which on the basis of signals of the measuring device (11) activates setting elements for setting the planarity of the rolling stock.
- Rolling device (1) according to claim 1, characterised that in addition provided after the rolling gap is a planarity measuring device (12) which provides signals for the controlling or regulating unit (13), wherein on the basis of the signals of the measuring device (11) and the planarity measuring device (12) this unit activates the setting elements (15, 16, 17, 18, 19) for setting the planarity of the rolling stock.
- Rolling device according to claim 1, characterised in that a setting element for setting the planarity of the rolling stock is a setting element for setting the inclination of the working rolls (2, 3) and/or the backing rolls (7, 8), the bending of the working rolls and/or intermediate rolls (2, 3) and/or the backing rolls (7, 8), the axial displacement of the working rolls (2, 3) and/or intermediate rolls (2, 3) within the scope of the continuous variable crown (CVC) displacement, a minimum-quantity lubrication and/or a temperature control or temperature regulation of the strip and/or the working rolls.
- Rolling device according to any one of the preceding claims, characterised in that at least one measuring device (11) for measuring a backward slip of the rolling material of the rolling stock in front of the rolling gap (4) is a measuring device measuring optically or mechanically.
- Method of operating a rolling device (1) with at least two working rolls (2, 3) and a rolling gap (4) between the working rolls (2, 3) for guidance through and rolling of a rolling stock (5) such as, for example, a strip (6) preferably of metal, characterised by recognition of a backward slip of the rolling material of the rolling stock in front of the rolling gap (4) and activation of at least one setting element for setting the planarity of the rolling stock in dependence on the recognised backward slip.
- Method according to claim 5, characterised in that the setting of the planarity of the rolling stock is carried out with additional consideration of planarity measurement signals which represent the planarity of the rolling stock behind the rolling gap.
- Method according to one of the preceding claims 5 and 6, characterised in that the backward slip of the rolling material of the rolling stock is detected in front of the rolling gap (4) optically or mechanically.
- Method according to any one of claims 1 to 6, characterised in that the strip tension situation is detected by means of a roller, for example an anti-crimping roller, mounted in the vicinity of the rolling gap to dip into the strip.
- Method according to claim 8, characterised by two force measuring cells below the mountings of the roller for simultaneous detection of the differential strip tension for regulation of planarity errors of the 1 st order and the global strip tensile stress or strip tensile force at the inlet of the roll stand.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102007046189 | 2007-09-26 | ||
DE102008015828A DE102008015828A1 (en) | 2007-09-26 | 2008-03-27 | Rolling device and method for its operation |
PCT/EP2008/007981 WO2009043501A1 (en) | 2007-09-26 | 2008-09-22 | Rolling device and method for the operation thereof |
Publications (2)
Publication Number | Publication Date |
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EP2195126A1 EP2195126A1 (en) | 2010-06-16 |
EP2195126B1 true EP2195126B1 (en) | 2012-11-14 |
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Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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EP08802476A Active EP2195126B1 (en) | 2007-09-26 | 2008-09-22 | Rolling device and method for the operation thereof |
Country Status (15)
Country | Link |
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US (1) | US20110030433A1 (en) |
EP (1) | EP2195126B1 (en) |
JP (1) | JP5490701B2 (en) |
KR (1) | KR101185391B1 (en) |
CN (1) | CN101808759B (en) |
AU (1) | AU2008306213A1 (en) |
BR (1) | BRPI0817341A2 (en) |
CA (1) | CA2700752C (en) |
DE (1) | DE102008015828A1 (en) |
ES (1) | ES2394234T3 (en) |
MX (1) | MX2010003239A (en) |
RU (1) | RU2427437C1 (en) |
TW (1) | TWI346587B (en) |
WO (1) | WO2009043501A1 (en) |
ZA (1) | ZA201000566B (en) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102009060243A1 (en) | 2009-12-23 | 2011-06-30 | SMS Siemag Aktiengesellschaft, 40237 | Flatness determination of a metal strip by measuring the profile |
AT513245B1 (en) * | 2012-12-11 | 2014-03-15 | Siemens Vai Metals Tech Gmbh | Flatness measurement and measurement of residual stresses for a metallic flat product |
CN104785542B (en) * | 2014-01-22 | 2016-10-05 | 宝山钢铁股份有限公司 | A kind of roughing mill tension adjustment control method |
US9758044B2 (en) * | 2014-10-02 | 2017-09-12 | Ford Global Technologies, Llc | Bus leakage resistance estimation for electrical isolation testing and diagnostics |
JP7067541B2 (en) * | 2019-10-31 | 2022-05-16 | Jfeスチール株式会社 | Rolling mill control method and control device |
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DE3038865C1 (en) * | 1980-10-15 | 1982-12-23 | SMS Schloemann-Siemag AG, 4000 Düsseldorf | Roll stand with axially movable rolls |
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DE3823202A1 (en) * | 1988-07-08 | 1990-01-11 | Betr Forsch Inst Angew Forsch | METHOD FOR COLD ROLLING SHEETS AND STRIPS |
JPH0523723A (en) * | 1991-07-24 | 1993-02-02 | Toshiba Corp | Flatness measuring device and controller for continuous rolling mill provided with this flatness measuring device |
JP3056668B2 (en) * | 1995-04-21 | 2000-06-26 | 新日本製鐵株式会社 | Strip continuous casting hot rolling heat treatment equipment and strip continuous casting hot rolling heat treatment method |
DE19704447A1 (en) * | 1997-02-06 | 1998-08-13 | Schloemann Siemag Ag | Flatness measuring roller |
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JP2000167609A (en) * | 1998-12-02 | 2000-06-20 | Nippon Steel Corp | Cold tandem rolling mill and its rolling method |
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IT1310879B1 (en) * | 1999-07-20 | 2002-02-22 | Danieli Off Mecc | LAMINATION CAGE FOR FLAT PRODUCTS AND METHOD FOR THE PLANARITY CONTROL OF THESE PRODUCTS |
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US6668626B2 (en) * | 2001-03-01 | 2003-12-30 | Abb Ab | System and a method for measuring and determining flatness |
DE10352546A1 (en) * | 2003-09-04 | 2005-03-31 | Sms Demag Ag | Method and device for applying an adjustable tensile stress distribution, in particular in the edge regions of cold-rolled metal strips |
DE102004032634A1 (en) * | 2004-07-06 | 2006-02-16 | Sms Demag Ag | Method and device for measuring and controlling the flatness and / or the strip tensions of a stainless steel strip or a stainless steel foil during cold rolling in a multi-roll stand, in particular in a 20-roll Sendizimir rolling mill |
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SE529074C2 (en) * | 2005-06-08 | 2007-04-24 | Abb Ab | Method and apparatus for optimizing flatness control when rolling a belt |
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-
2008
- 2008-03-27 DE DE102008015828A patent/DE102008015828A1/en not_active Withdrawn
- 2008-09-22 EP EP08802476A patent/EP2195126B1/en active Active
- 2008-09-22 ES ES08802476T patent/ES2394234T3/en active Active
- 2008-09-22 WO PCT/EP2008/007981 patent/WO2009043501A1/en active Application Filing
- 2008-09-22 JP JP2010526200A patent/JP5490701B2/en active Active
- 2008-09-22 AU AU2008306213A patent/AU2008306213A1/en not_active Abandoned
- 2008-09-22 BR BRPI0817341 patent/BRPI0817341A2/en not_active IP Right Cessation
- 2008-09-22 RU RU2010116170/02A patent/RU2427437C1/en active
- 2008-09-22 CN CN2008801088633A patent/CN101808759B/en active Active
- 2008-09-22 KR KR1020107004152A patent/KR101185391B1/en active IP Right Grant
- 2008-09-22 CA CA2700752A patent/CA2700752C/en not_active Expired - Fee Related
- 2008-09-22 MX MX2010003239A patent/MX2010003239A/en active IP Right Grant
- 2008-09-22 US US12/733,935 patent/US20110030433A1/en not_active Abandoned
- 2008-09-24 TW TW097136621A patent/TWI346587B/en not_active IP Right Cessation
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2010
- 2010-01-26 ZA ZA201000566A patent/ZA201000566B/en unknown
Also Published As
Publication number | Publication date |
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US20110030433A1 (en) | 2011-02-10 |
CN101808759B (en) | 2012-11-28 |
TW200914159A (en) | 2009-04-01 |
ES2394234T3 (en) | 2013-01-23 |
ZA201000566B (en) | 2010-09-29 |
DE102008015828A1 (en) | 2009-04-02 |
AU2008306213A1 (en) | 2009-04-09 |
EP2195126A1 (en) | 2010-06-16 |
CA2700752C (en) | 2012-07-24 |
CA2700752A1 (en) | 2009-04-09 |
CN101808759A (en) | 2010-08-18 |
MX2010003239A (en) | 2010-04-21 |
JP2010540250A (en) | 2010-12-24 |
BRPI0817341A2 (en) | 2015-03-31 |
KR20100039893A (en) | 2010-04-16 |
KR101185391B1 (en) | 2012-09-25 |
RU2427437C1 (en) | 2011-08-27 |
WO2009043501A1 (en) | 2009-04-09 |
TWI346587B (en) | 2011-08-11 |
JP5490701B2 (en) | 2014-05-14 |
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