EP2442925A1 - Method and device for process monitoring and process control during expansion of uoe pipes made of steel - Google Patents

Method and device for process monitoring and process control during expansion of uoe pipes made of steel

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Publication number
EP2442925A1
EP2442925A1 EP10726883A EP10726883A EP2442925A1 EP 2442925 A1 EP2442925 A1 EP 2442925A1 EP 10726883 A EP10726883 A EP 10726883A EP 10726883 A EP10726883 A EP 10726883A EP 2442925 A1 EP2442925 A1 EP 2442925A1
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EP
European Patent Office
Prior art keywords
tube
head
roller
head roller
during expansion
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP10726883A
Other languages
German (de)
French (fr)
Other versions
EP2442925B1 (en
Inventor
Lars MÜLLER
Johannes GROß-WEEGE
Ludwig Oesterlein
Siegmar Wulf
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Europipe GmbH
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Europipe GmbH
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Publication date
Application filed by Europipe GmbH filed Critical Europipe GmbH
Publication of EP2442925A1 publication Critical patent/EP2442925A1/en
Application granted granted Critical
Publication of EP2442925B1 publication Critical patent/EP2442925B1/en
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D39/00—Application of procedures in order to connect objects or parts, e.g. coating with sheet metal otherwise than by plating; Tube expanders
    • B21D39/08—Tube expanders
    • B21D39/20—Tube expanders with mandrels, e.g. expandable
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C37/00—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape
    • B21C37/06—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape of tubes or metal hoses; Combined procedures for making tubes, e.g. for making multi-wall tubes
    • B21C37/30—Finishing tubes, e.g. sizing, burnishing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D5/00—Bending sheet metal along straight lines, e.g. to form simple curves
    • B21D5/01—Bending sheet metal along straight lines, e.g. to form simple curves between rams and anvils or abutments
    • B21D5/015—Bending sheet metal along straight lines, e.g. to form simple curves between rams and anvils or abutments for making tubes

Definitions

  • this nominal force value is influenced depending on the position of the head roller and the current tube geometry.
  • an expander tool is inserted, which consists of a tool head 10 with radially expandable segments 9.
  • the tool head 10 is arranged on a pull rod 11 which radially spreads the segments 9 by means of an axial movement via the wedge 14 located between the pull rod 11 and the segments 9 and thus expands the tube.
  • the expander or tube axis is denoted by 3.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • A Measuring Device Byusing Mechanical Method (AREA)
  • Rolls And Other Rotary Bodies (AREA)
  • Automatic Assembly (AREA)

Abstract

The invention relates to a method and a device for performing the method, comprising an expander tool, which can be inserted into a pipe and which comprises a tool head that is arranged on a pull rod and has segments which can be spread in the radial direction, and a head roller, which is arranged thereon and can be adapted in the radial position thereof to the particular pipe diameter to be calibrated, for supporting the expander tool on the pipe, and a support roller, which supports the pipe to be calibrated. According to the invention, the head roller has a measuring device for recording the supporting force acting on the head roller during the expansion. Furthermore, the invention relates to an evaluating and monitoring unit for the measured values and a signal unit that indicates a deviation from specified tolerance thresholds.

Description

Verfahren und Vorrichtung zur Prozessüberwachung und Prozessregelung beim Expandieren von UOE-Rohren aus Stahl Method and device for process monitoring and process control when expanding steel UOE pipes
Beschreibungdescription
Die Erfindung betrifft ein Verfahren zur Prozessüberwachung und Prozessregelung beim Expandieren von UOE-gefertigten Rohren aus Stahl gemäß dem Oberbegriff des Patentanspruches 1. Insbesondere betrifft die Erfindung ein Expandierverfahren, bei dem ein radial aufweitender Expander in das Rohr eingeführt wird und dieser schrittweise durch das Rohr hindurchgeführt wird.The invention relates to a method for process monitoring and process control in the expansion of UOE-made steel tubes according to the preamble of claim 1. In particular, the invention relates to an expansion method in which a radially expanding expander is inserted into the tube and this passed through the tube step by step becomes.
Das in der Fachwelt mit UOE bezeichnete Verfahren ist das am häufigsten angewandte Verfahren zur Herstellung längsnahtgeschweißter Großrohre (Stahlrohr Handbuch, 12. Auflage, Vulkan Verlag Essen, 1995, Seiten 139 - 143). Bei diesem Verfahren werden im ersten Schritt die Kanten eines ebenen Bleches angebogen. Die nachfolgende Presse formt das Blech mit einem runden Pressstempel in eine U-Form (U-Presse), welches anschließend auf der O-Presse mit zwei sich schließenden Gesenken zu einem runden Schlitzrohr gepresst wird. Da in vielen Fällen die Rohre nach dem Innen- und Außenschweißen noch nicht die Anforderungen an Durchmesser, Rundheit und Geradheit erfüllen, werden sie durch Kaltaufweiten (Expandieren) kalibriert. Derartige Rohre werden dann zu Pipelines verschweißt und beispielsweise für den Öl- oder Gastransport eingesetzt.The method referred to in the art as UOE is the most frequently used method for producing longitudinally welded large pipes (Stahlrohr Handbuch, 12th edition, Vulkan Verlag Essen, 1995, pages 139-143). In this method, the edges of a flat sheet are bent in the first step. The subsequent press forms the sheet with a round punch in a U-shape (U-press), which is then pressed on the O-press with two closing dies to a round slotted tube. Since in many cases the tubes after internal and external welding do not yet meet the requirements for diameter, roundness and straightness, they are calibrated by cold expansion. Such pipes are then welded into pipelines and used for example for oil or gas transport.
Wegen der ständig steigenden Anforderungen an die Kollapsfestigkeit, insbesondere von mit sehr hohem Außendruck beaufschlagten offshoreverlegten Rohrleitungen, müssen die Rohre bezüglich der Rundheitstoleranzen immer größeren Anforderungen genügen.Because of the ever-increasing demands on the collapse resistance, in particular of offshore laid pipelines subjected to very high external pressure, the tubes must meet ever greater demands with regard to roundness tolerances.
Eine Vorrichtung zum Kalibrieren von Stahlrohren ist z. B. aus der DE 26 32 672 A1 bekannt. Diese Vorrichtung besteht aus einem Expander mit einem in das Rohr einführbaren Werkzeugkopf, der aus einem auf einer Zugstange angeordneten keilförmigen Vielkant (Keil) und mehreren auf den Umfang desselben verteilten Segmenten zusammengesetzt ist. Die Zugstange ist an der dem Werkzeugkopf abgewandten Seite mit einer Gabellagerung gehalten. Zum Expandieren werden über den Keil die Segmente radial auseinander gefahren und der Rohrabschnitt damit aufgeweitet und kalibriert. Über ein schrittweises Aufweiten wird dann das Rohr über seine gesamte Länge kalibriert.A device for calibrating steel pipes is z. B. from DE 26 32 672 A1. This device consists of an expander with an insertable into the tube tool head, which is composed of a arranged on a pull rod wedge-shaped polygon (wedge) and a plurality of circumferentially distributed on the same segments. The pull rod is held on the side facing away from the tool head with a fork bearing. To expand the segments are moved radially apart over the wedge and the pipe section widened and calibrated with it. About a gradual expansion is then calibrated the tube over its entire length.
Im unteren Bereich des Expanderkopfes an der Kopfaufnahme befindet sich die sogenannte Kopfrolle, die den Expanderkopf beim Expandieren trägt und somit werkzeugseitig gegen das Rohr abstützt. Das Rohr selbst stützt sich während des Expandierens auf einer Unterstützungsrolle ab, die im unmittelbaren Einwirkbereich der Kopfrolle angeordnet ist.In the lower area of the expander head on the head receptacle is the so-called head roller, which carries the expander head during expansion and thus on the tool side is supported against the pipe. The tube itself is supported during expansion on a support roller, which is located in the immediate Einwirkbereich the head roller.
Zum Kalibrieren unterschiedlicher Rohrdurchmesser ist die Kopfrolle vor dem Expandieren in ihrer radialen Lage, d. h. in ihrem Höhenabstand zur Expanderachse, veränderbar. Um eine optimale Rohrgeometrie in Bezug auf Rundheit und Geradheit des Rohres nach dem Expandieren zu erreichen, wird im Fall eines vollständig runden und geraden Ausgangsrohres die radiale Lage der Kopfrolle so eingestellt, dass die Expanderachse mit der Rohrachse zusammenfällt und der Abstand der Kopfrolle dem kalibrierten Rohrinnendurchmesser entspricht. Ein Abweichen von dieser Einstellung beeinflusst die gesamte Geometrie des Rohres beim Expandieren und verändert somit die Rundheit und Geradheit des Fertigrohres.To calibrate different pipe diameters, the head roll is prior to expansion in its radial position, d. H. in their height distance to the expander axis, changeable. In order to achieve optimum tube geometry in terms of roundness and straightness of the tube after expansion, in the case of a completely round and straight output tube, the radial position of the head roller is adjusted so that the expander axis coincides with the tube axis and the distance of the head roller to the calibrated tube inside diameter equivalent. Deviation from this setting affects the overall geometry of the tube as it expands, altering the roundness and straightness of the finished tube.
In der Praxis besitzen die Rohre vor dem Expandieren oftmals eine Geometrie, die von der idealen Rundheit und/oder Geradheit abweicht. Die Kopfrolle kann auch dazu genutzt werden, durch entsprechende Einstellung solchen Abweichungen entgegen zu wirken, um optimale Ergebnisse mit dem Kalibrieren zu erzielen. Diese Vorgehensweise ist bekannt und wird auch genutzt, um die Position der Kopfrolle in ihrer Höhenlage zu Beginn der Fertigung optimal einzustellen.In practice, prior to expansion, the tubes often have a geometry that deviates from ideal roundness and / or straightness. The head roller can also be used to counteract such deviations by appropriate adjustment in order to achieve optimum results with the calibration. This procedure is known and is also used to optimally adjust the position of the head roller in its altitude at the beginning of production.
Durch den Einfluss verschiedenster Faktoren vor dem Expandieren und aufgrund vorhandener Unregelmäßigkeiten in den Materialeigenschaften schwanken die geometrischen Eigenschaften der Rohre während der Fertigung. Bei immer enger werdenden Toleranzen kann es vorkommen, dass unter ungünstigen Bedingungen kalibrierte Rohre außerhalb der Toleranz liegen. In diesen Fällen müssen die Rohre in aufwändiger Nacharbeit, z. B. mittels hydraulischer Presszylinder, nachkalibriert werden. Aufgabe der Erfindung ist es deshalb, ein Verfahren und eine Vorrichtung zur Prozessüberwachung des Expandierens von UOE-gefertigten Rohren anzugeben, mit dem Änderungen in der Rohrausgangsgeometrie während der Fertigung, beim Expandieren registriert werden.Due to the influence of various factors before expansion and due to existing irregularities in the material properties, the geometric properties of the tubes fluctuate during production. With increasingly narrow tolerances, it may happen that under unfavorable conditions calibrated pipes are out of tolerance. In these cases, the pipes in elaborate rework, z. B. by means of hydraulic press cylinder recalibrated. The object of the invention is therefore to specify a method and a device for monitoring the process of expanding UOE-produced tubes, with which changes in the tube outlet geometry during manufacture are registered during expansion.
Eine weitere Aufgabe besteht darin, eine entsprechende Prozessregelung während des Expandierens anzugeben, welche auf die registrierten Änderungen in der Rohrgeometrie reagieren kann.Another object is to provide a corresponding process control during expansion which can respond to the registered changes in tube geometry.
Erfindungsgemäß wird die Hauptaufgabe dadurch gelöst, dass während des Expandierens die auf die Kopfrolle einwirkende Stützkraft gemessen, in Bezug zu einer vorgegebenen Soll- Stützkraft ausgewertet wird und bei Abweichungen von vorgegebenen Toleranzwerten eine Anzeige erfolgt.According to the invention, the main object is achieved in that, during expansion, the supporting force acting on the head roller is measured, evaluated in relation to a predetermined desired supporting force, and an indication is given of deviations from predetermined tolerance values.
Mit dem erfindungsgemäßen Verfahren wird es erstmals möglich, den Expansionsprozess direkt zu überwachen und so das Erreichen einer optimalen Rohrgeometrie innerhalb der gestellten Geometrieanforderungen sicher zu stellen.With the method according to the invention, it becomes possible for the first time to directly monitor the expansion process and thus to ensure the achievement of an optimum tube geometry within the set geometric requirements.
Bei Versuchen wurde erkannt, dass beim Kalibrieren die radiale Position der Kopf rolle relativ zur Expanderachse zum Erzielen einer möglichst idealen Rundheit und Geradheit beim Kalibrieren von entscheidender Bedeutung ist, insbesondere wenn die Vorrohre schon deutliche Abweichungen von der geforderten Rohrgeometrie aufweisen.In experiments it was recognized that during calibration, the radial position of the head roll relative to the expander axis to achieve the best possible roundness and straightness during calibration is crucial, especially if the Vorrohre already have significant deviations from the required tube geometry.
Des Weiteren wurde bei Versuchen festgestellt, dass schon geringe Änderungen in der radialen Position der Kopfrolle deutliche Auswirkungen auf die Rundheit und Geradheit des expandierten Rohres haben.Furthermore, it has been found in tests that even slight changes in the radial position of the head roller have significant effects on the roundness and straightness of the expanded tube.
Insbesondere hat sich bei Versuchen herausgestellt, dass die an der Kopfrolle gemessenen Kräfte deutlich mit der zu kalibrierenden Rohrgeometrie korrelieren. Das bedeutet, dass Abweichungen der Vorrohrgeometrie mit entsprechenden Abweichungen im Soll-Kraftverlauf der Kopfrolle korrelieren. Im Ruhezustand, d. h. nur mit einem in das Rohr eingeführten Expanderkopf, wird die Kopfrolle mit dem Eigengewicht des Expanderwerkzeugs beaufschlagt, welches den Sollkraftwert für die Stützkraft bildet.In particular, it has been found in experiments that the measured forces on the head roller correlate significantly with the tube geometry to be calibrated. This means that deviations of the Vorrohrgeometrie correlate with corresponding deviations in the desired force curve of the head roller. At rest, ie only with an inserted into the tube expander head, the head roller is acted upon by the weight of the Expanderwerkzeugs, which forms the desired force value for the supporting force.
Durch den Expansionsvorgang wird dieser Soll-Kraftwert in Abhängigkeit von der Position der Kopfrolle und der aktuellen Rohrgeometrie beeinflusst.Due to the expansion process, this nominal force value is influenced depending on the position of the head roller and the current tube geometry.
Bei zu expandierenden Rohren, die vorher deutliche Rundheitsabweichungen aufwiesen, wurden im Rahmen der Versuche beim Expandieren deutliche Abweichungen vom Soll- Kraftverlauf ermittelt. Je nach Ovalität wurden Kraftüber- oder Kraftunterschreitungen ermittelt. Ein Nachmessen der expandierten Rohre ergab dann eine entsprechende Abweichung in der geforderten Rohrgeometrie.In the case of pipes to be expanded, which previously had clear roundness deviations, clear deviations from the desired force curve were determined during the expansion experiments. Depending on the ovality, power overruns or underruns were determined. A re-measurement of the expanded tubes then resulted in a corresponding deviation in the required tube geometry.
Bei der Prozessüberwachung wird deshalb erfindungsgemäß während des Expandierens die auf die Kopfrolle des Expanders einwirkende Stützkraft gemessen, mit den vorgegebenen Toleranzwerten der Soll-Stützkraft verglichen und aus der Größe der Abweichungen eine gut/schlecht-Aussage für die Einhaltung der Geometrieanforderungen abgeleitet.During process monitoring, therefore, the expansion force acting on the head roller of the expander is measured according to the invention during expansion, compared with the predetermined tolerance values of the desired support force and derived from the size of the deviations a good / bad statement for compliance with the geometric requirements.
Durch eine der gemessenen Kraftabweichung entsprechende Nachstellung der radialen Position der Kopfrolle kann dann die kalibrierte Geometrie für das nächste Rohr gezielt beeinflusst werden.By adjusting the radial position of the head roller corresponding to the measured force deviation then the calibrated geometry for the next tube can be selectively influenced.
Gemäß einer vorteilhaften Weiterbildung der Erfindung ist es jedoch auch möglich, die gemessene Abweichung als Regelgröße für die Nachstellung der Kopfrolle zu verwenden, um so schon während des Expandierens Einfluss auf die Rohrgeometrie nehmen zu können.According to an advantageous embodiment of the invention, however, it is also possible to use the measured deviation as a controlled variable for the adjustment of the head roller so as to be able to influence the tube geometry during expansion.
Bei Versuchen wurde des Weiteren erkannt, dass neben der Position der Kopfrolle auch die Position der Unterstützungsrolle Auswirkungen auf die Geometrie des expandierten Rohres hat.It has also been found during tests that besides the position of the head roller, the position of the support roller also has an effect on the geometry of the expanded tube.
In einer vorteilhaften Weiterbildung der Erfindung wird zur Erfüllung der Geometrieanforderungen deshalb zusätzlich die Unterstützungsrolle in ihrer radialen Position zur Rohrachse nachgeführt. Durch eine geeignete Abstimmung der jeweiligen Positionen von Kopfrolle und Unterstützungsrolle kann dann vorteilhaft sowohl die Rundheit wie auch attf die Geradheit des Rohres im Sinne einer Optimierung der Rohrgeometrie beim Expandieren beeinflusst werden.In an advantageous development of the invention, in order to fulfill the geometry requirements, the support role in its radial position therefore additionally becomes tracked to the tube axis. By suitably coordinating the respective positions of the head roll and support roll, it is then advantageously possible to influence both the roundness and attf the straightness of the pipe in the sense of optimizing the pipe geometry during expansion.
Weitere Merkmale, Vorteile und Einzelheiten der Erfindung ergeben sich aus nachfolgender Beschreibung der dargestellten Ausführungsbeispiele.Further features, advantages and details of the invention will become apparent from the following description of the illustrated embodiments.
Es zeigen:Show it:
Figur 1 im Längsschnitt eine schematische Darstellung der erfindungsgemäßenFigure 1 in longitudinal section a schematic representation of the invention
Vorrichtung zum Expandieren eines Rohres,Device for expanding a pipe,
Figur 2 wie Figur 1 jedoch in einer Querschnittsansicht.Figure 2 as Figure 1 but in a cross-sectional view.
Figur 1 zeigt im Längsschnitt eine schematische Darstellung der erfindungsgemäßen Vorrichtung mit einer Messanordnung zum Messen der auf die Kopfrolle eines Expanderwerkzeugs beim Expandieren eines Rohres einwirkenden Kräfte.1 shows a longitudinal section of a schematic representation of the device according to the invention with a measuring arrangement for measuring the force acting on the head roller of an expander tool during expansion of a pipe forces.
In das zu expandierende Rohr 1 ist ein Expanderwerkzeug eingeführt, das aus einem Werkzeugkopf 10 mit radial aufspreizbaren Segmenten 9 besteht. Der Werkzeugkopf 10 ist an einer Zugstange 11 angeordnet, die über den zwischen Zugstange 11 und den Segmenten 9 liegenden Keil 14 durch eine axiale Bewegung die Segmente 9 radial spreizt und damit das Rohr expandiert. Die Expander- bzw. Rohrachse ist mit 3 bezeichnet.In the tube 1 to be expanded, an expander tool is inserted, which consists of a tool head 10 with radially expandable segments 9. The tool head 10 is arranged on a pull rod 11 which radially spreads the segments 9 by means of an axial movement via the wedge 14 located between the pull rod 11 and the segments 9 and thus expands the tube. The expander or tube axis is denoted by 3.
Der Werkzeugkopf 10 weist eine Kopfrolle 2 auf, mit der sich der Werkzeugkopf 10 während des Expandierens auf dem Rohr 1 abstützt. Das Rohr 1 stützt sich beim Expandieren auf einer in einer Lagerung 13 angeordneten Unterstützungsrolle 12 ab.The tool head 10 has a head roller 2, with which the tool head 10 is supported on the tube 1 during expansion. The tube 1 is supported during expansion on a arranged in a support 13 support roller 12 from.
Entsprechend Figur 2 ist die Kopfrolle 2 in einer Lagereinheit 4 gelagert, die aus einer Rollenaufnahme 7 und aus einem verstellbaren Lager 6 besteht. Die Rollenaufnahme 7 ist erfindungsgemäß mit einer Messeinrichtung 8 versehen, mit der die während des Expandierens auf die Kopfrolle einwirkende Kraft gemessen werden kann. Als Beispiel einer Höhenverstellung der Kopfrolle 2 ist das Lager 6 als Keillager ausgeführt und mit einem aus einem Hydraulikzylinder bestehenden Verstellmechanismus 5 versehen, mit dem über eine Verschiebung des Keillagers die radiale Position der Kopfrolle 2 eingestellt werden kann. According to Figure 2, the head roller 2 is mounted in a storage unit 4, which consists of a roller seat 7 and an adjustable bearing 6. The roller mount 7 is provided according to the invention with a measuring device 8, with which the force acting on the head roller during expansion can be measured. As an example of a height adjustment of the head roller 2, the bearing 6 is designed as a wedge bearing and provided with a consisting of a hydraulic cylinder adjustment mechanism 5, with the displacement of the wedge bearing, the radial position of the head roller 2 can be adjusted.
BezugszeichenlisteLIST OF REFERENCE NUMBERS

Claims

Patentansprüche claims
1. Verfahren zur Prozessüberwachung beim Expandieren eines nach dem UOE-1. Method for monitoring the process when expanding a post-UOE
Verfahren hergestellten Rohres aus Stahl mittels eines in das Rohr einführbaren Expanderwerkzeugs, bestehend aus einem an einer Zugstange angeordneten in radialer Richtung aufspreizbaren Werkzeugkopf mit dem das Rohr radial aufgeweitet wird, wobei während des Kalibrierens sich der Werkzeugkopf mit einer daran angeordneten und dem jeweiligen zu kalibrierenden Rohrdurchmesser in der radialen Lage anpassbaren Kopfrolle gegen das Rohr und dieses sich auf einer Unterstützungsrolle abstützt, wobei die Kopfrolle durch den Expandiervorgang mit einer Stützkraft beaufschlagt wird, dadurch gekennzeichnet, dass die während des Expandierens auf die Kopfrolle einwirkende Stützkraft gemessen, in Bezug zu einer vorgegebenen Soll-Stützkraft ausgewertet wird und bei Abweichungen von vorgegebenen Toleranzwerten eine Anzeige erfolgt.Method produced tube made of steel by means of an insertable into the tube Expanderwerkzeugs consisting of a arranged on a pull rod in the radial direction expandable tool head with which the tube is radially expanded, wherein during calibration, the tool head with a arranged thereon and the respective pipe diameter to be calibrated in the radial position adaptable head roller against the tube and this is supported on a support roller, wherein the head roller is acted upon by the expansion process with a supporting force, characterized in that measured during expansion on the head roller supporting force measured, with respect to a predetermined target Support force is evaluated and an indication of deviations from predetermined tolerance values.
2. Verfahren nach Anspruch 1 dadurch gekennzeichnet, dass auf Basis der ermittelten Abweichungen von den vorgegebenen Toleranzwerten die radiale Position der Kopfrolle verändert und dadurch die Rohrgeometrie beim Expandieren beeinflusst wird.2. The method according to claim 1, characterized in that on the basis of the determined deviations from the predetermined tolerance values, the radial position of the head roll changed and thereby the tube geometry is influenced during expansion.
3. Verfahren nach Anspruch 1 und 2 dadurch gekennzeichnet, dass auf Basis der ermittelten Abweichungen von den vorgegebenen Toleranzwerten die radiale Position der Kopfrolle mindestens für das nächste zu expandierende Rohr nachgeregelt wird.3. The method according to claim 1 and 2, characterized in that based on the determined deviations from the predetermined tolerance values, the radial position of the head roller is readjusted at least for the next tube to be expanded.
4. Verfahren nach Anspruch 3 dadurch gekennzeichnet, dass die Position der Kopfrolle bereits während des Expandierens bei Feststellung von Abweichungen direkt nachgeregelt wird. 4. The method according to claim 3, characterized in that the position of the head roller is readjusted directly during expansion when detecting deviations directly.
5. Verfahren nach einem der Ansprüche 1 - 4 dadurch gekennzeichnet, dass zur Erfüllung der Geometrieanforderungen zusätzlich die Unterstützungsrolle in ihrer radialen Position zur Rohrachse nachgeführt wird.5. The method according to any one of claims 1-4, characterized in that in addition to fulfill the geometry requirements, the support roller is tracked in its radial position to the tube axis.
6. Verfahren nach Anspruch 5 dadurch gekennzeichnet, dass die Unterstützungsrolle zur Erfüllung der Geometrieanforderungen mit der6. The method according to claim 5, characterized in that the support role to meet the geometry requirements with the
Kopfrolle gekoppelt nachgeführt wird.Head roller coupled tracked.
7. Vorrichtung zur Durchführung des Verfahrens nach einem der Ansprüche 1 - 6 mit einem in ein Rohr (1) einführbaren Expanderwerkzeug, bestehend aus einem an einer Zugstange (11) angeordneten Werkzeugkopf (10) mit in radialer Richtung aufspreitzbaren Segmenten (9) und einer daran angeordneten und dem jeweiligen zu kalibrierenden Rohrdurchmesser in der radialen Lage anpassbaren Kopfrolle (2) zur Abstützung des Expanderwerkzeugs auf dem Rohr (1) und einer das zu kalibrierende Rohr (1) abstützenden Unterstützungsrolle (12) dadurch gekennzeichnet, dass die Kopfrolle (2) mit einer Messeinrichtung (8) zur Aufnahme der während des Expandierens auf die Kopfrolle (2) einwirkenden Stützkraft versehen ist, sowie einer Auswerte- und Überwachungseinheit der Messwerte und einer die Abweichung von vorgegeben Toleranzschwellen anzeigenden Signaleinheit.7. Apparatus for carrying out the method according to one of claims 1 - 6 with a in a tube (1) insertable Expanderwerkzeug, consisting of a on a pull rod (11) arranged tool head (10) with aufspreitzbaren in the radial direction segments (9) and a arranged thereon and the respective pipe diameter to be calibrated in the radial position adaptable head roller (2) for supporting the Expanderwerkzeugs on the tube (1) and the pipe to be calibrated (1) supporting support roller (12) characterized in that the head roller (2) is provided with a measuring device (8) for receiving the supporting force acting on the head roller (2) during expansion, and an evaluation and monitoring unit of the measured values and a signal unit indicating the deviation from predetermined tolerance thresholds.
8. Vorrichtung nach Anspruch 7 dadurch gekennzeichnet, dass die Kopfrolle (2) in einer Lagereinheit (4) gelagert ist, die aus einer8. Apparatus according to claim 7, characterized in that the head roller (2) in a bearing unit (4) is mounted, consisting of a
Rollenaufnahme (7) und aus einem höheneinstellbaren Lager (6) besteht.Roller receptacle (7) and consists of a height-adjustable bearing (6).
9. Vorrichtung nach Anspruch 8 dadurch gekennzeichnet, dass das höheneinstellbare Lager (6) ein Keillager ist. 9. Apparatus according to claim 8, characterized in that the height-adjustable bearing (6) is a wedge bearing.
10. Vorrichtung nach Anspruch 8 und 9 dadurch gekennzeichnet, dass die Höheneinstellung über einen Verstellmechanismus (5) erfolgt.10. Apparatus according to claim 8 and 9, characterized in that the height adjustment via an adjusting mechanism (5).
11. Vorrichtung nach Anspruch 10 dadurch gekennzeichnet, dass der Verstellmechanismus (5) ein manueller, elektrischer, hydraulischer oder pneumatischer Antrieb ist. 11. The device according to claim 10, characterized in that the adjusting mechanism (5) is a manual, electric, hydraulic or pneumatic drive.
EP10726883A 2009-06-19 2010-05-12 Method and device for process monitoring and process control during expansion of uoe pipes made of steel Not-in-force EP2442925B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE200910030152 DE102009030152B4 (en) 2009-06-19 2009-06-19 Method and device for process monitoring and process control when expanding steel UOE pipes
PCT/DE2010/000558 WO2010145630A1 (en) 2009-06-19 2010-05-12 Method and device for process monitoring and process control during expansion of uoe pipes made of steel

Publications (2)

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EP2442925A1 true EP2442925A1 (en) 2012-04-25
EP2442925B1 EP2442925B1 (en) 2013-03-27

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EP10726883A Not-in-force EP2442925B1 (en) 2009-06-19 2010-05-12 Method and device for process monitoring and process control during expansion of uoe pipes made of steel

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EP (1) EP2442925B1 (en)
JP (1) JP5773996B2 (en)
DE (1) DE102009030152B4 (en)
RU (1) RU2541201C2 (en)
WO (1) WO2010145630A1 (en)

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Publication number Priority date Publication date Assignee Title
CN103990726A (en) * 2014-05-21 2014-08-20 无锡双友石化机械有限公司 Expanded-diameter pull rod anti-rotation device
CN106825275A (en) * 2017-01-22 2017-06-13 苏州新元电器有限公司 A kind of new tube expander
CN109530491B (en) * 2018-12-19 2024-06-07 浙江振兴阿祥集团有限公司 Lubrication-free expansion rounding die
RU2763079C2 (en) * 2019-12-03 2021-12-27 Маргарит Арменовна Товмасян Pipe expansion method

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DE2632672A1 (en) * 1976-07-16 1978-01-26 Mannesmann Ag Mechanical pipe expansion tool - has spiral grooves in head face engaging with weld seams in pipe
US4065953A (en) * 1976-06-15 1978-01-03 Mannesmann Aktiengesellschaft Mechanical tube expander
DE2924437C2 (en) * 1979-06-14 1981-11-26 Mannesmann AG, 4000 Düsseldorf Device for expanding and calibrating welded steel pipes
SU940905A1 (en) * 1980-11-12 1982-07-07 Днепропетровский Ордена Трудового Красного Знамени Металлургический Институт Tube straightening method
JPS59199117A (en) * 1983-04-28 1984-11-12 Nippon Kokan Kk <Nkk> Manufacture of steel pipe by uoe-system
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EP2442925B1 (en) 2013-03-27
JP2012529992A (en) 2012-11-29
RU2012101785A (en) 2013-07-27
DE102009030152B4 (en) 2011-12-22
JP5773996B2 (en) 2015-09-02
RU2541201C2 (en) 2015-02-10
DE102009030152A1 (en) 2010-12-30
WO2010145630A1 (en) 2010-12-23

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