EP1171249A1 - Strip-processing line for metal strips, especially for highly resistant high-grade steel strips - Google Patents

Strip-processing line for metal strips, especially for highly resistant high-grade steel strips

Info

Publication number
EP1171249A1
EP1171249A1 EP00922489A EP00922489A EP1171249A1 EP 1171249 A1 EP1171249 A1 EP 1171249A1 EP 00922489 A EP00922489 A EP 00922489A EP 00922489 A EP00922489 A EP 00922489A EP 1171249 A1 EP1171249 A1 EP 1171249A1
Authority
EP
European Patent Office
Prior art keywords
strip
metal strip
line according
belt
treatment
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
EP00922489A
Other languages
German (de)
French (fr)
Other versions
EP1171249B1 (en
Inventor
Klaus Boguslawsky
Martin Mutz
Gert Mücke
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.)
Sundwig GmbH
BFI VDEH Institut fuer Angewandte Forschung GmbH
Original Assignee
Sundwig GmbH
BFI VDEH Institut fuer Angewandte Forschung GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Sundwig GmbH, BFI VDEH Institut fuer Angewandte Forschung GmbH filed Critical Sundwig GmbH
Priority to DE20023724U priority Critical patent/DE20023724U1/en
Publication of EP1171249A1 publication Critical patent/EP1171249A1/en
Application granted granted Critical
Publication of EP1171249B1 publication Critical patent/EP1171249B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D1/00—Straightening, restoring form or removing local distortions of sheet metal or specific articles made therefrom; Stretching sheet metal combined with rolling
    • B21D1/02—Straightening, restoring form or removing local distortions of sheet metal or specific articles made therefrom; Stretching sheet metal combined with rolling by rollers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B45/00—Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
    • B21B45/02—Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills for lubricating, cooling, or cleaning
    • B21B45/0269—Cleaning
    • B21B45/0275—Cleaning devices
    • 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
    • B21B2015/0071—Levelling the rolled product
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B3/00—Rolling materials of special alloys so far as the composition of the alloy requires or permits special rolling methods or sequences ; Rolling of aluminium, copper, zinc or other non-ferrous metals
    • B21B3/02—Rolling special iron alloys, e.g. stainless steel
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B45/00—Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
    • B21B45/004—Heating the product

Definitions

  • the invention relates to a strip treatment line for metal strips, in particular for high-strength stainless steel strips, with a strip treatment section which comprises a first treatment station in which a liquid wets the respectively processed metal strip.
  • a strip treatment section which comprises a first treatment station in which a liquid wets the respectively processed metal strip.
  • cold-rolled stainless steel strips pass through a cleaning station before they reach an annealing furnace and are passed on for further processing.
  • the cleaning station large quantities of cleaning liquid are applied to the belt in order to remove residues, such as loose scale, flakes, oil residues and others, which have adhered to it and which have arisen in the preceding production steps or have remained on the belt.
  • a fundamental problem in the treatment of metal strips is that in many cases, depending on the design and function of the respective treatment stations, the strip has to be guided over a larger path length without the possibility of a support. This can be necessary, for example, in annealing furnaces, loop towers or similar facilities.
  • the advantage of the known device is that the size and the type of deformation required for the correction of flatness errors of the strip can be adjusted in a simple manner by suitable positioning of the straightening roller in relation to the guide rollers assigned to it. Because the deformation as a pure change in bending shape is carried out, no additional tensile forces are required for the straightening itself, so that the belt tension only has to be dimensioned for the transport of the belt through the device.
  • the object of the invention is to provide a strip treatment line of the type described in the introduction, in which the risk of damage to the surface of the processed metal strip is further reduced.
  • This object is achieved in that with a strip treatment line for metal strips, in particular for high-strength stainless steel strips, with a
  • Strip treatment section which comprises a first treatment station, in which a liquid wets the metal strip, the liquid-wetted metal strip passes through a deformation device which directs the metal strip by essentially pure change in bending shape.
  • a liquid film is always present between the straightening elements of the shaping device, such as straightening and / or guiding rollers, and the respective metal strip.
  • This liquid film prevents residues adhering to the tape from reaching the relevant elements of the shaping device, sticking there and subsequently causing damage to the tape surface.
  • the invention thus uses the presence of liquid in the wet part of the treatment line to prevent damage to the strip surface when straightening the deformation device. Not only is the effort for bending straightening as such reduced to a minimum, but no additional effort for the application or removal of lubricants or similar liquids in the area of the deformation device is required.
  • the deformation device can be, for example, a device for bending straightening, as is described in the aforementioned EP 0 865 839 A2. It is essential that the deformation of the metal strip is for the most part carried out as a change in the bending shape, in which tensile forces are essentially required only for the transport of the strip, and that the processed strip is wetted with a liquid. In addition to the advantage of saving energy and equipment for the drives, this ensures that the strip itself is not subjected to excessive stress during straightening, which could again lead to undesirable deformations.
  • the configuration of a belt treatment line according to the invention can be realized particularly advantageously when the treatment station is a belt cleaning device. In such a cleaning device, large amounts of cleaning liquid are applied to the belt so that a sufficiently thick film of liquid is always present when the belt enters the shaping device.
  • the deformation device is arranged within the treatment station.
  • a liquid film is formed on the metal strip that is so thick that liquid accumulates in the manner of an "aquaplaning effect" between the strip and the straightening elements of the shaping device and thus effectively prevents direct contact between the band and straightening elements.
  • the deformation device is arranged near the exit of the treatment station, since in this area the amount of the contaminants adhering to the belt, such as flakes, scale residues, etc., is largely removed.
  • the deformation device As an alternative to arranging the deformation device directly in the wet section of the strip treatment line, it may also be expedient, depending on the particular circumstances, to arrange the deformation device in the conveying direction of the metal strip in direct connection to the treatment station. It is only essential that a sufficient liquid film is present on the metal strip when it enters the deformation device.
  • Another possibility of forming the deformation device is that the deformation device has two straightening rollers which are partially wrapped around one another by the metal strip. The use of two straightening rollers, which are passed directly by the metal strip, allows the metal strips to be straightened without additional tensile forces having to be introduced.
  • the path of the metal strip in the region of the deformation device expediently has an S-shaped course. This enables the straightening rollers to be used particularly effectively.
  • a further advantageous embodiment of the invention consists in that the deformation device comprises a control device which controls the bending straightening carried out in the deformation device as a function of the result of a strip curvature measurement carried out on the metal strip.
  • FIG. 1 shows a treatment line in a side view
  • Fig. 3 shows the deformation device in a view from above.
  • the strip treatment line 1 comprises an unwinding device 2 for uncoiling a cold-rolled stainless steel strip B wound into a coil 3.
  • the unwound stainless steel strip B first passes through a cleaning device 4 in the conveying direction F. Subsequently, it is annealed in a continuous annealing furnace 5 arranged at a distance from the cleaning device 4. Finally, a reel device 6 is positioned at the end of the strip treatment line 1, on which the annealed stainless steel strip B is rewound to form a coil 7.
  • the stainless steel strip B enters the cleaning device 4, which extends over a certain length L, through an inlet opening 8.
  • nozzles 9 are arranged in a plurality of successive rows in the conveying direction F, via which
  • Cleaning liquid is applied under increased pressure to the top and bottom of the stainless steel belt B in order to remove impurities adhering to the stainless steel belt B, such as flakes, oil residues and the like.
  • the stainless steel strip B leaves the cleaning device 4 through an exit opening 10 after the cleaning liquid has been removed from its surfaces by means of a wiping device 11 positioned closely adjacent to the exit opening 10.
  • the stainless steel strip B is bent in a deformation device 12 arranged inside the cleaning device 4.
  • the deformation device 12 has a straightening roller 13 partially wrapped in the stainless steel strip B and two guide rollers 14, 15.
  • the guide rollers 14, 15 have a larger diameter than the straightening roller 13. They are arranged so closely adjacent to one another in the axis, 6 that a gusset area 16 is formed between them, in which the straightening roller 13 is positioned.
  • the stainless steel strip B is held in contact with the straightening roller 13 by the guide rollers 14, 15.
  • the beginning and the end of the wrap around the straightening roller 13 are each determined by a contact line 17, 18, in which the guide rollers 14, 15 each touch the straightening roller 13 indirectly via the stainless steel belt B.
  • the position of the straightening roller 13 and the guide rollers 14, 15 can be adjusted relative to one another by adjusting devices, not shown here.
  • the axis of rotation 19 of the straightening roller 13 is additionally adjustable in a plane 20 which is adjustable perpendicular to the plane of the stainless steel strip B.
  • the degree of wrap around the straightening roller 13 by the stainless steel belt B can be set. This setting is made depending on the result of a measurement of the flatness of the stainless steel strip B carried out by a measuring device 21 when leaving the cleaning device 4.
  • the stainless steel strip B is straightened by a pure change in the bending shape.
  • the arrangement and geometric relationships of the directional and guide rollers 13, 14, 15 are chosen so that the strip tension acting on the stainless steel strip B makes no contribution to this change in shape. It only serves to transport the stainless steel strip B through the strip treatment line 1. In this way it is avoided that the stainless steel strip B is stretched as it passes through the deformation device 12.
  • the cleaning liquid R with which the stainless steel strip B is wetted in the cleaning device 4, builds up in the area of the contact lines 17, 18 in the manner of an "aquaplaning effect".
  • the resulting in this way between the guide rollers 14, 15 and the top of the stainless steel belt B or between the leveling roller 13 and the underside of the stainless steel belt B causes that on the stainless steel belt B still existing loose impurities on the peripheral surfaces of the direction and the Guide rollers 13,14,15 arrive and be rolled in there. In this way, it is effectively prevented that the surfaces of the stainless steel strip B are damaged in the region of the deformation device 12.
  • the essentially pure bending deformation experienced by the metal strip treated in the strip treatment line 1 in the deformation device 12 effectively corrects flatness and other geometry errors even in the case of high-strength metal strips.
  • the strip in question does not form any transverse or longitudinal bulges when it passes through the annealing furnace 5, in which it is moved freely and unsupported over a longer distance, and also does not extend from its conveying direction F. Unintentional contacts with internals of the annealing furnace 5 are reliably avoided in this way. LIST OF REFERENCE NUMBERS

Abstract

The invention relates to a strip-processing line for metal strips (B), especially for highly resistant high-grade steel strips. Said strip-processing line comprises a strip processing section with a first processing station (4) in which a liquid wets the metal strip being processed (B). According to the invention, the metal strip (B) that has been wetted with the liquid is passed through a deforming device (12) which straightens the metal strip (B) by essentially pure deformation by bending. The inventive strip processing plant hereby further reduces the risk of damaging the surface of the metal strip being processed.

Description

Bandbehandlungslinie für Metallbänder, insbesondere für hochfeste Edelstahlbänder Strip treatment line for metal strips, especially for high-strength stainless steel strips
Die Erfindung betrifft eine Bandbehandlungslinie für Metallbänder, insbesondere für hochfeste Edelstahlbänder, mit einem Bandbehandlungsabschnitt, der eine erste Behandlungsstation umfaßt, in welcher eine Flüssigkeit das jeweils verarbeitete Metallband benetzt. In derartigen Behandlungslinien durchlaufen beispielsweise kaltgewalzte Edelsstahlbänder eine Reinigungsstation, bevor sie in einen Glühofen gelangen und einer Weiterverarbeitung zugeführt werden. In der Reinigungsstation werden große Mengen von Reinigungsflüssigkeit auf das Band ausgebracht, um auf ihm haftende Rückstände, wie losen Zunder, Flitter, Ölreste und anderes, zu entfernen, welche bei den vorhergehenden Herstellschritten entstanden oder auf dem Band verblieben sind.The invention relates to a strip treatment line for metal strips, in particular for high-strength stainless steel strips, with a strip treatment section which comprises a first treatment station in which a liquid wets the respectively processed metal strip. In such treatment lines, for example, cold-rolled stainless steel strips pass through a cleaning station before they reach an annealing furnace and are passed on for further processing. In the cleaning station, large quantities of cleaning liquid are applied to the belt in order to remove residues, such as loose scale, flakes, oil residues and others, which have adhered to it and which have arisen in the preceding production steps or have remained on the belt.
Ein grundsätzliches Problem bei der Behandlung von Metallbändern besteht darin, daß das Band in vielen Fällen abhängig von der Gestaltung und Funktion der jeweiligen Behandlungsstationen über eine größere Weglänge ohne die Möglichkeit einer Abstützung geführt werden muß. Dies kann beispielsweise in Glühöfen, in Schlingentürmen oder ähnlichen Einrichtungen erforderlich sein.A fundamental problem in the treatment of metal strips is that in many cases, depending on the design and function of the respective treatment stations, the strip has to be guided over a larger path length without the possibility of a support. This can be necessary, for example, in annealing furnaces, loop towers or similar facilities.
Im Bereich der frei durchlaufenen Wegstrecken kann es aufgrund von Planheits- oder anderen Geometriefehlern des verarbeiteten Metallbandes dazu kommen, daß das Band sich in Längs- und / oder Querrichtung bogenförmig verformt. Diese Verformung führt zum einen zu einem seitlichen Verlaufen des Bandes aus seinem Förderweg. Zum anderen besteht die Gefahr, daß sich das Band wölbt und nicht mehr einwandfrei in der Ebene des Förderweges liegt.In the area of the freely traversed distances, flatness or other geometry errors of the processed metal strip can result in the strip being deformed in an arc in the longitudinal and / or transverse direction. On the one hand, this deformation leads to the belt running sideways out of its conveying path. On the other hand, there is a risk that the belt will bulge and no longer lie perfectly in the plane of the conveying path.
Sowohl das Verlaufen als auch die aus der Ebene des Förderwegs hinausführende Wölbung des Metallbandes bringen die Gefahr mit sich, daß das gewölbte oder verzogene Band in nicht vorherbestimmbarer Weise mit Führungen oder anderen ortsfesten Installationen der jeweiligen Einrichtung in Berührung kommt. Diese Kontakte führen zu einer Beschädigung und Markierung der Bandoberfläche, durch welche die Marktfähigkeit des jeweiligen Metallbandproduktes erheblich beeinträchtigt wird. Verstärkt wird dieses Problem dadurch, daß die Bänder mit hohen Geschwindigkeiten durch die Behandlungslinien gefördert werden, wodurch die Gefahr einer instabilen Lage des mit Planheitsfehlern behafteten Bandes in Bezug auf den ihm zugedachten Förderweg erhöht wird.Both the running and the curvature of the metal strip leading out of the plane of the conveying path entail the risk that the curved or warped band comes into contact with guides or other fixed installations of the respective device in an unpredictable manner. These contacts lead to damage and marking of the strip surface, which significantly impairs the marketability of the respective metal strip product. This problem is exacerbated by the fact that the belts are conveyed through the treatment lines at high speeds, which increases the risk of an unstable position of the belt with flatness errors in relation to the conveying path intended for it.
In der Vergangenheit sind aufwendige Maßnahmen ergriffen worden, um einen einwandfreien Lauf des Bandes durch eine Behandlungslinie zu gewährleisten. So sind mechanische Bandlaufregelungen eingesetzt worden, die in Abhängigkeit vom jeweiligen Verlaufen des Bandes gezielt Bremskräfte auf das Band aufbringen, um durch dessen Ungleichförmigkeiten verursachte Abweichungen vom Förderweg auszugleichen.In the past, elaborate measures have been taken to ensure that the belt runs smoothly through a treatment line. For example, mechanical belt guiding systems have been used that apply braking forces to the belt depending on the respective course of the belt in order to compensate for deviations from the conveying path caused by its irregularities.
Eine andere Möglichkeit, eine korrekte Ausrichtung des Bandverlaufs zu erreichen, besteht darin, die Geometriefehler des Bandes selbst zu beseitigen. Zu diesem Zweck werden in der Regel Streck-Biege-Richtmaschinen eingesetzt, in welchen durch das kombinierte Aufbringen von Zug- und Biegekräften die Planheit des Bandes erhöht wird. Zwar können durch die voranstehend erwähnten Maßnahmen gewisse Verbesserungen des Bandlaufs erreicht werden. In der Praxis zeigt sich jedoch, daß dazu ein erheblicher apparativer Aufwand erforderlich ist. So müssen nicht nur aufwendige Vorrichtungen für die Verformung der Bänder selbst eingesetzt werden, sondern es sind auch erhebliche Antriebskräfte erforderlich, um das Band durch die betreffenden Vorrichtungen zu fördern.Another way to achieve a correct alignment of the tape run is to eliminate the geometric errors of the tape itself. For this purpose, stretch-bend straightening machines are generally used, in which the flatness of the strip is increased by the combined application of tensile and bending forces. Certain improvements in the tape run can be achieved by the measures mentioned above. In practice, however, it turns out that this requires a considerable amount of equipment. Not only must complex devices be used for the deformation of the belts themselves, but considerable driving forces are also required to convey the belt through the devices in question.
Dieser Aufwand bringt nicht nur hohe Kosten mit sich, sondern führt in vielen Fällen auch nicht zu dem gewünschten Erfolg. Letzteres gilt insbesondere bei der Behandlung von hochfestem Edelstahlband, dessen Planheit sich nach dem Kaltwalzen nur unter größeren Schwierigkeiten korrigieren läßt.This effort not only entails high costs, but in many cases does not lead to the desired success. The latter applies in particular to the treatment of high-strength stainless steel strip, the flatness of which can only be corrected with great difficulty after cold rolling.
Zur Beseitigung der voranstehend zusammengefaßten Nachteile ist in der EP 0 865 839 A2 vorgeschlagen worden, das Band durch eine Richteinrichtung zu führen, in der es durch reine Biegeformänderung gerichtet wird. Zu diesem Zweck ist die bekannte Richteinrichtung mit einer Richtrolle ausgestattet, die von dem Band zwischen zwei Berührungslinien teilweise umschlungen wird. Gleichzeitig sind zwei Führungsrollen vorgesehen, welche das Band in Anlage an der Richtrolle halten. So wird erreicht, daß der Biegeradius des Metallbandes dem Radius der Richtrolle entspricht .In order to eliminate the disadvantages summarized above, it has been proposed in EP 0 865 839 A2 to guide the strip through a straightening device in which it is straightened by a change in the bending shape. For this purpose, the known straightening device is equipped with a straightening roller which is partially wrapped around by the belt between two lines of contact. At the same time, two guide rollers are provided which hold the belt in contact with the straightening roller. This ensures that the bending radius of the metal strip corresponds to the radius of the straightening roll.
Der Vorteil der bekannten Einrichtung besteht darin, daß sich durch eine geeignete Positionierung der Richtrolle in Bezug auf die ihr zugeordneten Führungsrollen die Größe und die Art der für die Korrektur von Planheitsfehlern des Bandes benötigten Verformung auf einfache Weise einstellen lassen. Da die Verformung als reine Biegeformänderung durchgeführt wird, werden für das Richten selbst keine zusätzlichen Zugkräfte benötigt, so daß der Bandzug lediglich für den Transport des Bandes durch die Einrichtung bemessen sein muß.The advantage of the known device is that the size and the type of deformation required for the correction of flatness errors of the strip can be adjusted in a simple manner by suitable positioning of the straightening roller in relation to the guide rollers assigned to it. Because the deformation as a pure change in bending shape is carried out, no additional tensile forces are required for the straightening itself, so that the belt tension only has to be dimensioned for the transport of the belt through the device.
Bei der praktischen Erprobung der aus der EP 0 865 839 A2 bekannten Vorrichtung zum Biegerichten eines Metallbandes ist festgestellt worden, daß der enge, formschlüssige Kontakt des Bandes mit den Rieht- und Führungsrollen dazu führt, daß Ablagerungen von dem Band auf die Rollenoberflächen übertragen und dort eingewalzt werden. Diese Ablagerungen verursachen wiederum unerwünschte Markierungen der Bandoberfläche, welche nachträglich entfernt werden müssen, um den an hochwertige Oberflächen von Metallbändern gestellten Ansprüchen zu genügen. Besonders problematisch erweist sich dies auch in diesem Zusammenhang bei der Verarbeitung von Edelstahlbändern, an deren Oberflächenbeschaffenheit besonders hohe Anforderungen gestellt werden.During practical testing of the device for bending a metal strip known from EP 0 865 839 A2, it was found that the close, form-fitting contact of the strip with the straightening and guide rollers leads to deposits being transferred from the strip to the roller surfaces and there be rolled in. These deposits in turn cause undesirable markings on the strip surface, which have to be removed subsequently in order to meet the demands placed on high-quality surfaces of metal strips. This also proves to be particularly problematic in this context when processing stainless steel strips, the surface properties of which are particularly demanding.
Die Aufgabe der Erfindung besteht darin, eine Bandbehandlungslinie der eingangs erläuterten Art zu schaffen, in welcher das Risiko einer Beschädigung der Oberfläche des verarbeiteten Metallbandes weiter vermindert ist.The object of the invention is to provide a strip treatment line of the type described in the introduction, in which the risk of damage to the surface of the processed metal strip is further reduced.
Diese Aufgabe wird dadurch gelöst, daß bei einer Bandbehandlungslinie für Metallbänder, insbesondere für hochfeste Edelstahlbänder, mit einemThis object is achieved in that with a strip treatment line for metal strips, in particular for high-strength stainless steel strips, with a
Bandbehandlungsabschnitt, der eine erste Behandlungstation umfaßt, in welcher eine Flüssigkeit das Metallband benetzt, das mit Flüssigkeit benetzte Metallband eine Verformungseinrichtung durchläuft, welche das Metallband durch im wesentlichen reine Biegeformänderung richtet. Indem das Band im noch mit Flüssigkeit benetzten Zustand durch die Verformungseinrichtung gefuhrt wird, wird erreicht, daß auch zwischen den Richtelementen der Verformungseinrichtung, wie Rieht- und / oder Fuhrungsrollen, und dem jeweiligen Metallband stets ein Flussigkeitsfilm vorhanden ist. Dieser Flussigkeitsfilm verhindert, daß auf dem Band haftende Ruckstande auf die betreffenden Elemente der Verformungseinrichtung gelangen, dort haften bleiben und anschließend eine Beschädigung der Bandoberflache verursachen. Die Erfindung nutzt somit das Vorhandensein von Flüssigkeit im Naßteil der Behandlungslinie aus, um eine Beschädigung der Bandoberflache beim Richten m der Verformungseinrichtung zu verhindern. So ist nicht nur der Aufwand für das Biegerichten als solches auf ein Minimum reduziert, sondern es ist auch kein zusatzlicher Aufwand für das Aufbringen oder Entfernen von Schmierstoffen oder ahnlichen Flüssigkeiten im Bereich der Verformungseinrichtung erforderlich.Strip treatment section, which comprises a first treatment station, in which a liquid wets the metal strip, the liquid-wetted metal strip passes through a deformation device which directs the metal strip by essentially pure change in bending shape. By guiding the strip through the shaping device while it is still wetted with liquid, a liquid film is always present between the straightening elements of the shaping device, such as straightening and / or guiding rollers, and the respective metal strip. This liquid film prevents residues adhering to the tape from reaching the relevant elements of the shaping device, sticking there and subsequently causing damage to the tape surface. The invention thus uses the presence of liquid in the wet part of the treatment line to prevent damage to the strip surface when straightening the deformation device. Not only is the effort for bending straightening as such reduced to a minimum, but no additional effort for the application or removal of lubricants or similar liquids in the area of the deformation device is required.
Bei der Verformungseinrichtung kann es sich beispielsweise um eine Vorrichtung zum Biegerichten handeln, wie sie in der erwähnten EP 0 865 839 A2 beschrieben ist. Wesentlich ist, daß die Verformung des Metallbandes zum weitaus überwiegenden Teil als Biegeformanderung ausgeführt wird, bei der Zugkräfte im wesentlichen ausschließlich zum Transport des Bandes benotigt werden, und daß das verarbeitete Band mit einer Flüssigkeit benetzt ist. Neben dem Vorteil der Einsparung von Energie und apparativem Aufwand für die Antriebe stellt dies sicher, daß das Band während des Richtens selbst keiner übermaßigen Belastung unterworfen wird, die wieder zu unerwünschten Verformungen fuhren konnten. Besonders vorteilhaft läßt sich die erfindungsgemäße Ausgestaltung einer Bandbehandlungslinie dann verwirklichen, wenn die Behandlungsstation eine Bandreinigungseinrichtung ist. In einer solchen Reinigungseinrichtung werden große Mengen Reinigungsflüssigkeit auf das Band gebracht, so daß ein stets ausreichend dicker Flüssigkeitsfilm vorhanden ist, wenn das Band in die Verformungseinrichtung eintritt.The deformation device can be, for example, a device for bending straightening, as is described in the aforementioned EP 0 865 839 A2. It is essential that the deformation of the metal strip is for the most part carried out as a change in the bending shape, in which tensile forces are essentially required only for the transport of the strip, and that the processed strip is wetted with a liquid. In addition to the advantage of saving energy and equipment for the drives, this ensures that the strip itself is not subjected to excessive stress during straightening, which could again lead to undesirable deformations. The configuration of a belt treatment line according to the invention can be realized particularly advantageously when the treatment station is a belt cleaning device. In such a cleaning device, large amounts of cleaning liquid are applied to the belt so that a sufficiently thick film of liquid is always present when the belt enters the shaping device.
Letzteres läßt sich insbesondere dann gewährleisten, wenn die Verformungseinrichtung innerhalb der Behandlungsstation angeordnet ist. Bei dieser Anordnung entsteht auf dem Metallband ein Flüssigkeitsfilm, der so stark ist, daß sich zwischen dem Band und den Richtelementen der Verformungseinrichtung Flüssigkeit nach Art eines "Aquaplaning-Effekts" aufstaut und so einen direkten Kontakt zwischen Band und Richtelementen wirkungsvoll verhindert. Zweckmäßig ist es in diesem Zusammenhang, wenn die Verformungseinrichtung nahe dem Ausgang der Behandlungsstation angeordnet ist, da in diesem Bereich die Menge der auf dem Band haftenden Verunreinigungen, wie Flitter, Zunderreste etc., zum großen Teil entfernt sind.The latter can be ensured in particular if the deformation device is arranged within the treatment station. With this arrangement, a liquid film is formed on the metal strip that is so thick that liquid accumulates in the manner of an "aquaplaning effect" between the strip and the straightening elements of the shaping device and thus effectively prevents direct contact between the band and straightening elements. In this context, it is expedient if the deformation device is arranged near the exit of the treatment station, since in this area the amount of the contaminants adhering to the belt, such as flakes, scale residues, etc., is largely removed.
Alternativ zu einer Anordnung der Verformungseinrichtung direkt im Naßabschnitt der Bandbehandlungslinie kann es in Abhängigkeit von den jeweiligen Gegebenheiten ebenso zweckmäßig sein, die Verformungseinrichtung in Förderrichtung des Metallbandes in unmittelbarem Anschluß an die Behandlungsstation anzuordnen. Wesentlich ist lediglich, daß ein ausreichender Flüssigkeitsfilm auf dem Metallband vorhanden ist, wenn es in die Verformungseinrichtung eintritt. Eine andere Möglichkeit der Ausbildung der Verformungseinrichtung besteht darin, daß die Verformungseinrichtung zwei von dem Metallband nacheinander teil-umschlungene Richtrollen besitzt. Auch durch die Verwendung zweier Richtrollen, die von dem Metallband in unmittelbarem Anschluß aneinander passiert werden, lassen sich die Metallbänder biegerichten, ohne daß zusätzliche Zugkräfte eingebracht werden müssen. Dabei hat der Weg des Metallbands im Bereich der Verformungseinrichtung zweckmäßigerweise einen S-förmigen Verlauf. Dies ermöglicht es, die Richtrollen besonders wirkungsvoll einzusetzen.As an alternative to arranging the deformation device directly in the wet section of the strip treatment line, it may also be expedient, depending on the particular circumstances, to arrange the deformation device in the conveying direction of the metal strip in direct connection to the treatment station. It is only essential that a sufficient liquid film is present on the metal strip when it enters the deformation device. Another possibility of forming the deformation device is that the deformation device has two straightening rollers which are partially wrapped around one another by the metal strip. The use of two straightening rollers, which are passed directly by the metal strip, allows the metal strips to be straightened without additional tensile forces having to be introduced. The path of the metal strip in the region of the deformation device expediently has an S-shaped course. This enables the straightening rollers to be used particularly effectively.
Eine weitere vorteilhafte Ausgestaltung der Erfindung besteht darin, daß die Verformungseinrichtung eine Steuereinrichtung umfaßt, welche das in der Verformungseinrichtung durchgeführte Biegerichten in Abhängigkeit vom Ergebnis einer an dem Metallband vorgenommenen Bandkrümmungsmessung steuert.A further advantageous embodiment of the invention consists in that the deformation device comprises a control device which controls the bending straightening carried out in the deformation device as a function of the result of a strip curvature measurement carried out on the metal strip.
Nachfolgend wird die Erfindung anhand einer ein Ausführungsbeispiel darstellenden Zeichnung näher erläutert. Es zeigen in schematischer Darstellung:The invention is explained in more detail below on the basis of a drawing illustrating an exemplary embodiment. In a schematic representation:
Fig. 1 eine Behandlungslinie in einer seitlichen Ansicht;1 shows a treatment line in a side view;
Fig. 2 eine in der Behandlungslinie eingesetzteFig. 2 one used in the treatment line
Verformungseinrichtung in seitlicher Ansicht;Deformation device in a side view;
Fig. 3 die Verformungseinrichtung in einer Ansicht von oben. Die Bandbehandlungslinie 1 umfaßt eine Abwickeleinrichtung 2 zum Abhaspeln eines zu einem Coil 3 gewickelten kaltgewalzten Edelstahlbandes B. Das abgehaspelte Edelstahlband B durchläuft in Förderrichtung F zunächst eine Reinigungseinrichtung 4. Daran anschließend wird es in einem mit Abstand zu der Reinigungseinrichtung 4 angeordneten Durchlaufglühofen 5 geglüht. Am Ende der Bandbehandlungslinie 1 ist schließlich eine Haspeleinrichtung 6 positioniert, auf der das geglühte Edelstahlband B wieder zu einem Coil 7 gehaspelt wird.Fig. 3 shows the deformation device in a view from above. The strip treatment line 1 comprises an unwinding device 2 for uncoiling a cold-rolled stainless steel strip B wound into a coil 3. The unwound stainless steel strip B first passes through a cleaning device 4 in the conveying direction F. Subsequently, it is annealed in a continuous annealing furnace 5 arranged at a distance from the cleaning device 4. Finally, a reel device 6 is positioned at the end of the strip treatment line 1, on which the annealed stainless steel strip B is rewound to form a coil 7.
Das Edelstahlband B tritt durch eine Eingangsöffnung 8 in die sich über eine bestimmte Länge L erstreckende Reinigungseinrichtung 4 ein. In der Reinigungseinrichtung 4 sind in mehreren in Förderrichtung F aufeinanderfolgenden Reihen Düsen 9 angeordnet, über welcheThe stainless steel strip B enters the cleaning device 4, which extends over a certain length L, through an inlet opening 8. In the cleaning device 4, nozzles 9 are arranged in a plurality of successive rows in the conveying direction F, via which
Reinigungsflüssigkeit unter erhöhtem Druck auf die Ober- und Unterseite des Edelstahlbandes B ausgebracht wird, um auf dem Edelstahlband B haftende Verunreinigungen, wie Flitter, Ölrückstände und ähnliches, zu entfernen. Das Edelstahlband B verläßt die Reinigungseinrichtung 4 durch eine Ausgangsöffnung 10, nachdem die Reinigungsflüssigkeit mittels einer eng benachbart zur Ausgangsöffnung 10 positionierten Abstreifeinrichtung 11 von seinen Oberflächen entfernt worden ist.Cleaning liquid is applied under increased pressure to the top and bottom of the stainless steel belt B in order to remove impurities adhering to the stainless steel belt B, such as flakes, oil residues and the like. The stainless steel strip B leaves the cleaning device 4 through an exit opening 10 after the cleaning liquid has been removed from its surfaces by means of a wiping device 11 positioned closely adjacent to the exit opening 10.
Unmittelbar vor dem Erreichen der Abstreifeinrichtung 11 wird das Edelstahlband B in einer innerhalb der Reinigungseinrichtung 4 angeordneten Verformungseinrichtung 12 biegegerichtet. Die Verformungseinrichtung 12 weist eine von dem Edelstahlband B teil-umschlungene Richtrolle 13 und zwei Führungsrollen 14,15 auf. Die Führungsrollen 14,15 weisen einen größeren Durchmesser auf als die Richtrolle 13. Sie sind achsparallel derart eng benachbart angeordnet, 6 daß zwischen ihnen ein Zwickelbereich 16 ausgebildet ist, in welchem die Richtrolle 13 positioniert ist.Immediately before reaching the stripping device 11, the stainless steel strip B is bent in a deformation device 12 arranged inside the cleaning device 4. The deformation device 12 has a straightening roller 13 partially wrapped in the stainless steel strip B and two guide rollers 14, 15. The guide rollers 14, 15 have a larger diameter than the straightening roller 13. They are arranged so closely adjacent to one another in the axis, 6 that a gusset area 16 is formed between them, in which the straightening roller 13 is positioned.
Durch die Führungsrollen 14,15 wird das Edelstahlband B in Anlage an der Richtrolle 13 gehalten. Dabei wird der Anfang und das Ende der Umschlingung der Richtrolle 13 durch jeweils eine Berührungslinie 17, 18 bestimmt, in welcher die Führungsrollen 14,15 jeweils mittelbar über das Edelstahlband B die Richtrolle 13 berühren.The stainless steel strip B is held in contact with the straightening roller 13 by the guide rollers 14, 15. The beginning and the end of the wrap around the straightening roller 13 are each determined by a contact line 17, 18, in which the guide rollers 14, 15 each touch the straightening roller 13 indirectly via the stainless steel belt B.
Durch hier nicht dargestellte Versteileinrichtungen kann die Lage der Richtrolle 13 und der Führungsrollen 14,15 relativ zueinander verstellt werden. Zudem ist die Drehachse 19 der Richtrolle 13 zusätzlich in einer Ebene 20 verstellbar, die senkrecht zur Ebene des Edelstahlbandes B verstellbar ist.The position of the straightening roller 13 and the guide rollers 14, 15 can be adjusted relative to one another by adjusting devices, not shown here. In addition, the axis of rotation 19 of the straightening roller 13 is additionally adjustable in a plane 20 which is adjustable perpendicular to the plane of the stainless steel strip B.
Durch die Verstellung der relativen Lage der Rieht- und Führungsrollen 13,14,15 zueinander kann der Grad der Umschlingung der Richtrolle 13 durch das Edelstahlband B eingestellt werden. Dabei erfolgt diese Einstellung in Abhängigkeit vom Ergebnis einer durch eine Messeinrichtung 21 durchgeführten Messung der Planheit des Edelstahlbandes B beim Verlassen der Reinigungseinrichtung 4.By adjusting the relative position of the straightening and guide rollers 13, 14, 15 with respect to one another, the degree of wrap around the straightening roller 13 by the stainless steel belt B can be set. This setting is made depending on the result of a measurement of the flatness of the stainless steel strip B carried out by a measuring device 21 when leaving the cleaning device 4.
Innerhalb der Verformungseinrichtung 12 wird das Edelstahlband B durch eine reine Biegeformänderung gerichtet. Die Anordnung und geometrischen Verhältnisse der Rieht- und der Führungsrollen 13,14,15 sind dabei so gewählt, daß der auf das Edelstahlband B wirkende Bandzug zu dieser Formänderung keinen Beitrag leistet. Er dient lediglich zum Transport des Edelstahlbandes B durch die Bandbehandlungslinie 1. Auf diese Weise wird vermieden, daß das Edelstahlband B beim Durchlauf durch die Verformungseinrichtung 12 eine Streckung erfährt.Inside the deformation device 12, the stainless steel strip B is straightened by a pure change in the bending shape. The arrangement and geometric relationships of the directional and guide rollers 13, 14, 15 are chosen so that the strip tension acting on the stainless steel strip B makes no contribution to this change in shape. It only serves to transport the stainless steel strip B through the strip treatment line 1. In this way it is avoided that the stainless steel strip B is stretched as it passes through the deformation device 12.
Die Reinigungsflüssigkeit R, mit welcher das Edelstahlband B in der Reinigungseinrichtung 4 benetzt wird, staut sich im Bereich der Berührungslinien 17,18 nach Art eines "Aquaplaning-Effektes" auf. Der sich auf diese Weise zwischen den Führungswalzen 14,15 und der Oberseite des Edelstahlbandes B bzw. zwischen der Richtrolle 13 und der Unterseite des Edelstahlbandes B einstellende Flüssigkeitsfilm bewirkt, daß auf dem Edelstahlband B noch vorhandene lose Verunreinigungen auf die Umfangsflachen der Rieht- und der Führungsrollen 13,14,15 gelangen und dort eingewalzt werden. Auf diese Weise wird wirkungsvoll verhindert, daß es im Bereich der Verformungseinrichtung 12 zu einer Beschädigung der Oberflächen des Edelstahlbandes B kommt.The cleaning liquid R, with which the stainless steel strip B is wetted in the cleaning device 4, builds up in the area of the contact lines 17, 18 in the manner of an "aquaplaning effect". The resulting in this way between the guide rollers 14, 15 and the top of the stainless steel belt B or between the leveling roller 13 and the underside of the stainless steel belt B causes that on the stainless steel belt B still existing loose impurities on the peripheral surfaces of the direction and the Guide rollers 13,14,15 arrive and be rolled in there. In this way, it is effectively prevented that the surfaces of the stainless steel strip B are damaged in the region of the deformation device 12.
Gleichzeitig werden durch die im wesentlichen reine Biegeverformung, die das jeweils in der Bandbehandlungslinie 1 behandelte Metallband in der Verformungseinrichtung 12 erfährt, auch bei hochfesten Metallbändern Planheits- und sonstige Geometriefehler wirkungsvoll korrigiert. Dies hat zur Folge, daß das betreffende Band beim Durchlauf des Glühofens 5, in welchem es über eine längere Strecke frei und ungestützt bewegt wird, keine Quer- oder Längsauswölbungen ausbildet und auch nicht aus seiner Förderrichtung F verläuft. Unbeabsichtigte Kontakte mit Einbauten des Glühofens 5 werden auf diese Weise sicher vermieden. BEZUGSZEICHENLISTEAt the same time, the essentially pure bending deformation experienced by the metal strip treated in the strip treatment line 1 in the deformation device 12 effectively corrects flatness and other geometry errors even in the case of high-strength metal strips. As a result, the strip in question does not form any transverse or longitudinal bulges when it passes through the annealing furnace 5, in which it is moved freely and unsupported over a longer distance, and also does not extend from its conveying direction F. Unintentional contacts with internals of the annealing furnace 5 are reliably avoided in this way. LIST OF REFERENCE NUMBERS
1 Bandbehandlungslinie1 belt treatment line
2 Abwickeleinrichtung2 unwinder
3 Coil3 coil
4 Reinigungseinrichtung4 cleaning device
5 Durchlaufglühofen5 continuous annealing furnace
6 Haspeleinrichtung6 reel device
7 Coil7 coil
8 Eingangsöffnung der Reinigungseinrichtung 48 entrance opening of the cleaning device 4
9 Düsen der Reinigungseinrichtung 49 nozzles of the cleaning device 4
10 Ausgangsöffnung der Reinigungseinrichtung 410 outlet opening of the cleaning device 4
11 Abstreifeinrichtung der Reinigungseinrichtung 411 Wiping device of the cleaning device 4
12 Verformungseinrichtung12 deformation device
13 Richtrolle der Verformungseinrichtung 12 14,15 Führungsrollen der Verformungseinrichtung 1213 straightening roller of the deformation device 12 14, 15 guide rollers of the deformation device 12
16 Zwickelbereich zwischen den Führungsrollen 14,1516 gusset area between the guide rollers 14, 15
17,18 Berührungslinie an der Richtrolle 1317.18 line of contact on the straightening roller 13
19 Drehachse der Richtrolle 1319 axis of rotation of the straightening roller 13
20 Ebene senkrecht zur Ebene des Edelstahlbandes B20 level perpendicular to the level of the stainless steel strip B
21 Messeinrichtung21 measuring device
B kaltgewalztes EdelstahlbandB cold rolled stainless steel strip
F FörderrichtungF conveying direction
L Länge der Reinigungseinrichtung 4L length of cleaning device 4
R Reinigungsflüssigkeit R cleaning fluid

Claims

PA T E N T AN S P RÜ C H E PATENT TO SPEECH
1. Bandbehandlungslinie für Metallbänder (B) , insbesondere für hochfeste Edelstahlbänder, mit einem Bandbehandlungsabschnitt, der eine erste Behandlungsstation (4) umfaßt, in welcher eine Flüssigkeit das jeweils verarbeitete Metallband (B) benetzt, d a d u r c h g e k e n n z e i c h n e t, d a ß das mit Flüssigkeit benetzte Metallband (B) eine Verformungseinrichtung (12) durchläuft, welche das Metallband (B) durch im wesentlichen reine Biegeformänderung richtet.1. strip treatment line for metal strips (B), in particular for high-strength stainless steel strips, with a strip treatment section which comprises a first treatment station (4) in which a liquid wets the respectively processed metal strip (B), characterized in that the metal strip wetted with liquid ( B) passes through a deformation device (12) which directs the metal strip (B) by essentially pure change in bending shape.
2. Bandbehandlungslinie nach Anspruch 1, d a d u r c h g e k e n n z e i c h n e t, d a ß die Behandlungsstation eine Bandreinigungseinrichtung (4) ist.2. Belt treatment line according to claim 1, d a d u r c h g e k e n n z e i c h n e t, that the treatment station is a belt cleaning device (4).
3. Bandbehandlungslinie nach einem der voranstehenden Ansprüche, d a d u r c h g e k e n n z e i c h n e t, d a ß das Metallband (B) im Anschluß an die Behandlungsstation (4) einen Glühofen (5) durchläuft.3. strip treatment line according to one of the preceding claims, d a d u r c h g e k e n n z e i c h n e t, that the metal strip (B) passes through an annealing furnace (5) following the treatment station (4).
4. Bandbehandlungslinie nach einem der voranstehenden Ansprüche, d a d u r c h g e k e n n z e i c h n e t, d a ß die Verformungseinrichtung (12) innerhalb der Behandlungsstation (4) angeordnet ist. 4. Belt treatment line according to one of the preceding claims, characterized in that the deformation device (12) is arranged inside the treatment station (4).
5. Bandbehandlungslinie nach Anspruch 4, d a d u r c h g e k e n n z e i c h n e t, d a ß die Verformungseinrichtung (12) nahe dem Ausgang (10) der Behandlungsstation (4) angeordnet ist.5. belt treatment line according to claim 4, d a d u r c h g e k e n n z e i c h n e t, that the deformation device (12) is arranged near the exit (10) of the treatment station (4).
6. Bandbehandlungslinie nach einem der Ansprüche 1 bis 3, d a d u r c h g e k e n n z e i c h n e t, d a ß die Verformungseinrichtung (12) in Förderrichtung (F) des Metallbandes (B) in unmittelbarem Anschluß an die Behandlungsstation (4) angeordnet ist.6. strip treatment line according to one of claims 1 to 3, d a d u r c h g e k e n n z e i c h n e t, that the deformation device (12) is arranged in the conveying direction (F) of the metal strip (B) in direct connection to the treatment station (4).
7. Bandbehandlungslinie nach einem der voranstehenden Ansprüche, d a d u r c h g e k e n n z e i c h n e t, d a ß die Verformungseinrichtung (12) eine von dem Metallband7. strip treatment line according to one of the preceding claims, d a d u r c h g e k e n n z e i c h n e t, that the deformation device (12) one of the metal strip
(B) teil-umschlungene Richtrolle (13) und zwei Führungsrollen (14,15) aufweist, durch die das Metallband (B) in Anlage an der Richtrolle (13) gehalten ist.(B) partially wrapped straightening roller (13) and two guide rollers (14, 15), by means of which the metal strip (B) is held in contact with the straightening roller (13).
8. Bandbehandlungslinie nach Anspruch 7, d a d u r c h g e k e n n z e i c h n e t, d a ß die Lage der Richtrolle (13) und der Führungsrollen (14,15) relativ zueinander verstellbar ist.8. belt treatment line according to claim 7, d a d u r c h g e k e n n z e i c h n e t, that the position of the straightening roller (13) and the guide rollers (14, 15) is adjustable relative to each other.
9. Bandbehandlungslinie nach einem der Ansprüche 7 oder 8, d a d u r c h g e k e n n z e i c h n e t, d a ß die Lage der Drehachse (19) der Richtrolle (13) in einer Ebene (20) senkrecht zur Ebene des Metallbandes (B) verstellbar ist. 9. belt treatment line according to one of claims 7 or 8, characterized in that ß the position of the axis of rotation (19) of the straightening roller (13) in a plane (20) perpendicular to the plane of the metal strip (B) is adjustable.
10. Bandbehandlungslinie nach einem der Ansprüche 7 bis 9, d a d u r c h g e k e n n z e i c h n e t, d a ß die Führungsrollen (14,15) einen Zwickelbereich (16) eingrenzen, in welchem die Richtrolle (13) positioniert ist.10. Belt treatment line according to one of claims 7 to 9, d a d u r c h g e k e n n z e i c h n e t, that the guide rollers (14, 15) delimit a gusset area (16) in which the straightening roller (13) is positioned.
11. Bandbehandlungslinie nach einem der Ansprüche 1 bis 6, d a d u r c h g e k e n n z e i c h n e t, d a ß die Verformungseinrichtung zwei von dem Metallband (B) nacheinander teil-umschlungene Richtrollen besitzt.11. Belt treatment line according to one of claims 1 to 6, d a d u r c h g e k e n n z e i c h n e t, that the deformation device has two straightening rollers partially wrapped in succession by the metal strip (B).
12. Bandbehandlungslinie nach Anspruch 11, d a d u r c h g e k e n n z e i c h n e t, d a ß der Weg des Metallbandes (B) im Bereich der Verformungseinrichtung einen S-förmigen Verlauf hat.12. The strip treatment line as claimed in claim 11, where the path of the metal strip (B) has an S-shaped course in the region of the deformation device.
13. Bandbehandlungslinie nach einem der voranstehenden Ansprüche, d a d u r c h g e k e n n z e i c h n e t, d a ß die Verformungseinrichtung (12) eine Steuereinrichtung umfaßt, welche das in der Verformungseinrichtung (12) durchgeführte Biegerichten in Abhängigkeit vom Ergebnis einer an dem Metallband (B) vorgenommenen Bandkrümmungsmessung steuert.13. Strip processing line according to one of the preceding claims, d a d u r c h g e k e n n z e i c h n e t, that the deformation device (12) comprises a control device which controls the bending straightening carried out in the deformation device (12) depending on the result of a strip curvature measurement carried out on the metal strip (B).
ERSATZBLATT (REGEL 2S) REPLACEMENT SHEET (RULE 2S)
EP00922489A 1999-04-19 2000-03-01 Strip-processing line and method for processing metal strips, especially for highly resistant high-grade steel strips Expired - Lifetime EP1171249B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE20023724U DE20023724U1 (en) 1999-04-19 2000-03-01 Strip treatment line, especially for high strength special steel strip, has a liquid treatment station followed by a straightener in which the wet strip is subjected to purely bending deformation

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19917561 1999-04-19
DE19917561A DE19917561C1 (en) 1999-04-19 1999-04-19 Strip treatment line for metal strips, especially for high-strength stainless steel strips
PCT/EP2000/001704 WO2000062950A1 (en) 1999-04-19 2000-03-01 Strip-processing line for metal strips, especially for highly resistant high-grade steel strips

Publications (2)

Publication Number Publication Date
EP1171249A1 true EP1171249A1 (en) 2002-01-16
EP1171249B1 EP1171249B1 (en) 2005-06-08

Family

ID=7905028

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00922489A Expired - Lifetime EP1171249B1 (en) 1999-04-19 2000-03-01 Strip-processing line and method for processing metal strips, especially for highly resistant high-grade steel strips

Country Status (4)

Country Link
EP (1) EP1171249B1 (en)
AT (1) ATE297271T1 (en)
DE (2) DE19917561C1 (en)
WO (1) WO2000062950A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8707529B2 (en) 2008-12-11 2014-04-29 The Material Works, Ltd. Method and apparatus for breaking scale from sheet metal with recoiler tension and rollers adapted to generate scale breaking wrap angles

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10124836C5 (en) * 2001-05-22 2007-07-19 Bwg Bergwerk- Und Walzwerk-Maschinenbau Gmbh Method for eliminating transverse curvatures in a metal strip
DE10135743C1 (en) * 2001-07-21 2002-12-05 Sundwig Kohler Gmbh Washing machine used for washing metal strips comprises a housing with an inlet and an outlet, devices for applying cleaning liquid to the metal strip, a squeezing device arranged
DE10328291B3 (en) * 2003-06-23 2005-02-24 Thyssenkrupp Stahl Ag Method and device for forming metallic strips
DE102012103366A1 (en) 2012-04-18 2013-10-24 Bwg Bergwerk- Und Walzwerk-Maschinenbau Gmbh Method and apparatus for crushing a scale-damaged metal strip
CN113245293B (en) * 2021-04-23 2023-04-07 山东辛诚生态科技有限公司 Centrifugal deep cleaning device for straw fracture part in straw fiber paddle board
CN113618344A (en) * 2021-08-27 2021-11-09 青岛春牧机械有限公司 Processing technology for rolling and forming agricultural mechanical equipment parts

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2537188C3 (en) * 1975-08-21 1978-05-18 Bwg Bergwerk- Und Walzwerk-Maschinenbau Gmbh, 4100 Duisburg Method and device for the production of hot strip with improved quality properties
BE1006465A3 (en) * 1992-12-08 1994-09-06 Cockerill Mech Ind Sa Method and installation of steel bands cleaning.
DE4423664A1 (en) * 1994-07-07 1996-05-15 Bwg Bergwerk Walzwerk Process for producing cold-rolled steel strips from stainless steel and metal strips, in particular from titanium alloys
DE19708488A1 (en) * 1997-03-03 1998-09-10 Betr Forsch Inst Angew Forsch Device for straightening metal strips
DE19749466C1 (en) * 1997-11-08 1998-12-24 Bwg Bergwerk Walzwerk Production of rolled or cast metal strip with descaled surface, especially strip consisting of special steel and titanium alloys

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO0062950A1 *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8707529B2 (en) 2008-12-11 2014-04-29 The Material Works, Ltd. Method and apparatus for breaking scale from sheet metal with recoiler tension and rollers adapted to generate scale breaking wrap angles

Also Published As

Publication number Publication date
ATE297271T1 (en) 2005-06-15
EP1171249B1 (en) 2005-06-08
DE19917561C1 (en) 2000-11-30
DE50010520D1 (en) 2005-07-14
WO2000062950A1 (en) 2000-10-26

Similar Documents

Publication Publication Date Title
EP2119514B1 (en) Method for straightening a metal strip
EP1781429B1 (en) Method for straightening a metal strip and straightening machine
DE102007006810B3 (en) Device for leveling metal strips
DE3234160C2 (en) Method and hot strip mill for producing thin metal strip, in particular metal wide strip, from hot strip
DE19520541C2 (en) Method and device for correcting a rolled metal strip which is bent horizontally in the strip plane, in particular a metal strip with a strip thickness of 0.5 mm to 2.0 mm
DE102010024714C5 (en) Method for stretch bending of metal strips and stretch bending plant
AT509831B1 (en) METHOD AND DEVICE FOR MINIMIZING THE STRAP TRAIN OF A ROLL
EP1414599A1 (en) Device for winding and unwinding hot-rolled pre-strips consisting of hot metal
DE19917561C1 (en) Strip treatment line for metal strips, especially for high-strength stainless steel strips
DE4230243C1 (en) Roller set for the S-shaped deflection of thin metal strips to be leveled
DE4323385C1 (en) Method for eliminating transverse curvatures in metal strips, in particular thin metal strips up to 2.0 mm thick
EP2838676A1 (en) Method and device for descaling a scaled metal strip
EP0611717A1 (en) Method and device for turning a running steel strip
WO2002016057A1 (en) Method and device for tension levelling a cold-rolled strip and regulating the degree of levelling
EP1025918B1 (en) Method and installation for forming metal strip
EP1454681A3 (en) Device and method for rolling metal strips
DE102012214803A1 (en) Apparatus for transferring metal band from reel to processing device e.g. strip processing line, has rollers that are movably mounted along frame, and clamping jaws that are movably mounted along frame
DE20023724U1 (en) Strip treatment line, especially for high strength special steel strip, has a liquid treatment station followed by a straightener in which the wet strip is subjected to purely bending deformation
EP1167258A2 (en) Band accumulator for metal bands, especially spiral looper for thick steel bands
DE2830890C2 (en) Process for lengthening hot-rolled round wire with an initial diameter d ″ of up to 20 mm, for example, with a carbon content of 0.1 to 1% by high-grade cold forming, and a device for carrying out the process
EP2446976A1 (en) Method and device for feeding a metal strip into a metal strip processing assembly
DE19809444B4 (en) Method for tension-free transporting of a belt and corresponding transport path
DE102020130005A1 (en) Method and device for reducing lift-off of the windings of a coil of metal strip
EP1051269B1 (en) Device for aligning a band, especially a metal band
DE19935701A1 (en) Device for straightening a metal strip with at least one pair of rollers

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

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

17P Request for examination filed

Effective date: 20011010

17Q First examination report despatched

Effective date: 20030102

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

RTI1 Title (correction)

Free format text: STRIP-PROCESSING LINE AND METHOD FOR PROCESSING METAL STRIPS, ESPECIALLY FOR HIGHLY RESISTANT HIGH-GRADE STEEL STRIPS

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

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 FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20050608

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: 20050608

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: 20050608

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

REF Corresponds to:

Ref document number: 50010520

Country of ref document: DE

Date of ref document: 20050714

Kind code of ref document: P

REG Reference to a national code

Ref country code: IE

Ref legal event code: FG4D

Free format text: LANGUAGE OF EP DOCUMENT: GERMAN

REG Reference to a national code

Ref country code: SE

Ref legal event code: TRGR

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: 20050908

Ref country code: GR

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: 20050908

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: 20051114

NLV1 Nl: lapsed or annulled due to failure to fulfill the requirements of art. 29p and 29m of the patents act
GBV Gb: ep patent (uk) treated as always having been void in accordance with gb section 77(7)/1977 [no translation filed]

Effective date: 20050608

REG Reference to a national code

Ref country code: IE

Ref legal event code: FD4D

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

Ref country code: BE

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

Effective date: 20060331

Ref country code: LI

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

Effective date: 20060331

Ref country code: MC

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

Effective date: 20060331

Ref country code: LU

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

Effective date: 20060331

Ref country code: CH

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

Effective date: 20060331

ET Fr: translation filed
PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

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

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed

Effective date: 20060309

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

BERE Be: lapsed

Owner name: SUNDWIG G.M.B.H.

Effective date: 20060331

Owner name: BETRIEBSFORSCHUNGSINSTITUT VDEH, INSTITUT FUR ANGE

Effective date: 20060331

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: 20050608

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

Ref country code: ES

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

Effective date: 20060331

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

Ref country code: FI

Payment date: 20100319

Year of fee payment: 11

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

Ref country code: SE

Payment date: 20100322

Year of fee payment: 11

REG Reference to a national code

Ref country code: SE

Ref legal event code: EUG

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

Ref country code: FI

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

Effective date: 20110301

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

Ref country code: SE

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

Effective date: 20110302

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 17

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 NON-PAYMENT OF DUE FEES

Effective date: 20160301

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 18

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 NON-PAYMENT OF DUE FEES

Effective date: 20160301

PGRI Patent reinstated in contracting state [announced from national office to epo]

Ref country code: IT

Effective date: 20170710

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 19

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

Ref country code: FR

Payment date: 20190319

Year of fee payment: 20

Ref country code: IT

Payment date: 20190326

Year of fee payment: 20

Ref country code: DE

Payment date: 20190320

Year of fee payment: 20

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

Ref country code: AT

Payment date: 20190320

Year of fee payment: 20

REG Reference to a national code

Ref country code: DE

Ref legal event code: R071

Ref document number: 50010520

Country of ref document: DE

REG Reference to a national code

Ref country code: AT

Ref legal event code: MK07

Ref document number: 297271

Country of ref document: AT

Kind code of ref document: T

Effective date: 20200301