EP2478974B1 - Final roller device and method for producing a magnesium strip in same - Google Patents

Final roller device and method for producing a magnesium strip in same Download PDF

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Publication number
EP2478974B1
EP2478974B1 EP11196160.3A EP11196160A EP2478974B1 EP 2478974 B1 EP2478974 B1 EP 2478974B1 EP 11196160 A EP11196160 A EP 11196160A EP 2478974 B1 EP2478974 B1 EP 2478974B1
Authority
EP
European Patent Office
Prior art keywords
coil
spool
reel
roll
hood
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.)
Not-in-force
Application number
EP11196160.3A
Other languages
German (de)
French (fr)
Other versions
EP2478974A1 (en
Inventor
Axel Dipl.-Ing. Barten (Eth)
Werner Dr. Latzel
Wilhelm Friedrich Sommer
Thomas RÜCKER
Axel Marx
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.)
Achenbach Buschhetten GmbH and Co KG
Original Assignee
Achenbach Buschhetten GmbH and Co KG
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Publication date
Application filed by Achenbach Buschhetten GmbH and Co KG filed Critical Achenbach Buschhetten GmbH and Co KG
Publication of EP2478974A1 publication Critical patent/EP2478974A1/en
Application granted granted Critical
Publication of EP2478974B1 publication Critical patent/EP2478974B1/en
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B1/00—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations
    • B21B1/22—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling plates, strips, bands or sheets of indefinite length
    • B21B1/30—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling plates, strips, bands or sheets of indefinite length in a non-continuous process
    • B21B1/32—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling plates, strips, bands or sheets of indefinite length in a non-continuous process in reversing single stand mills, e.g. with intermediate storage reels for accumulating work
    • B21B1/34—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling plates, strips, bands or sheets of indefinite length in a non-continuous process in reversing single stand mills, e.g. with intermediate storage reels for accumulating work by hot-rolling
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B13/00—Metal-rolling stands, i.e. an assembly composed of a stand frame, rolls, and accessories
    • 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
    • B21C47/00—Winding-up, coiling or winding-off metal wire, metal band or other flexible metal material characterised by features relevant to metal processing only
    • B21C47/02—Winding-up or coiling
    • 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
    • B21C47/00—Winding-up, coiling or winding-off metal wire, metal band or other flexible metal material characterised by features relevant to metal processing only
    • B21C47/02—Winding-up or coiling
    • B21C47/04—Winding-up or coiling on or in reels or drums, without using a moving guide
    • 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
    • B21C47/00—Winding-up, coiling or winding-off metal wire, metal band or other flexible metal material characterised by features relevant to metal processing only
    • B21C47/16—Unwinding or uncoiling
    • B21C47/18—Unwinding or uncoiling from reels or drums
    • 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
    • B21C47/00—Winding-up, coiling or winding-off metal wire, metal band or other flexible metal material characterised by features relevant to metal processing only
    • B21C47/24—Transferring coils to or from winding apparatus or to or from operative position therein; Preventing uncoiling during transfer
    • 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
    • B21C47/00—Winding-up, coiling or winding-off metal wire, metal band or other flexible metal material characterised by features relevant to metal processing only
    • B21C47/26—Special arrangements with regard to simultaneous or subsequent treatment of the material
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D8/00—Modifying the physical properties by deformation combined with, or followed by, heat treatment
    • C21D8/02—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D8/00—Modifying the physical properties by deformation combined with, or followed by, heat treatment
    • C21D8/02—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips
    • C21D8/0247—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips characterised by the heat treatment
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C1/00—Making non-ferrous alloys
    • C22C1/02—Making non-ferrous alloys by melting
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22F—CHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS AND NON-FERROUS ALLOYS
    • C22F1/00—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working
    • C22F1/06—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of magnesium or alloys based thereon
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B15/00—Arrangements for performing additional metal-working operations specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
    • B21B2015/0057—Coiling the rolled product
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • 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
    • B21B2015/0064—Uncoiling the rolled product
    • 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 present invention relates to a finishing roll device for producing a thin magnesium strip based on a finished roll device, in particular after preheating in a preheating furnace, fed coils according to the preamble of claim 1. Furthermore, the invention relates to a method for producing a thin magnesium strip in such a finishing roll device according to the The preamble of claim 10.
  • magnesium sheet is suitable for the production of vehicle bodies, the magnesium sheet having strength properties which are comparable to those of aluminum sheet, having a lower weight, so that here a corresponding potential for further ways to save energy in the operation of motor vehicles in addition consist of the developments of new drive concepts.
  • magnesium sheet has turned out to be comparatively complicated in comparison to the production of steel or aluminum sheet, since magnesium proves to be brittle due to its hexagonal lattice structure at the processing temperatures usually present during cold rolling, so that the successful production of magnesium sheet adherence to a defined Temperature range, which is approximately between 230 ° C and 450 ° C, is necessary in order to use the achievable in this temperature range relative ductility of the material for processing can.
  • a finish rolling device is known in whose operation various measures are used to maintain an elevated temperature level of the wound to a coil magnesium tape after entering the finishing roller device.
  • winding tubes are provided on the reeling devices of the finishing roller device which are operated in reversing mode, which form an outer housing of reel mandrels, so that magnesium tape arranged on the reel mandrel is covered by the winding tube in order to keep a temperature loss in the reel device low.
  • a continuous furnace is arranged on the outlet side of the roll stand of the known finishing roller device between the rolling stand and the outlet side coiler, which allows heating of the magnesium belt during the reversing operation.
  • the additional continuous furnace is a supplementary component of the production line, so that on the one hand increased installation effort or space required for the finishing roller means, and on the other hand by the intermediate arrangement of the continuous furnace an extension of the belt conveyor between the reels is the result and thus the belt surface between the reels is increased. Therefore, the temperature increase achieved in the continuous furnace of the magnesium band at least partially compensated by increased temperature losses.
  • a finishing roll device for producing a thin magnesium strip based on a finished roll means comprising a roll stand for receiving at least two nip defining a work rolls, a first coiler means for receiving the coil and feeding the magnesium strip to the nip and a second coiler means for coiling the Magnesium bands after passing through the nip.
  • At least the first reeling device is provided with a heating device and a hood device which shields the coil or the magnesium strip against heat radiation.
  • finishing roller device has the features of claim 1.
  • At least the first reel device and / or the rolling stand and here preferably the work rolls or the work rolls supporting support rolls, are provided with a heating device and a hood device which shields the coil or the magnesium strip against thermal radiation, at least the hood device of the first reeling device its shell side facing away from the housing side has a Coil screeneriessö réelle for introducing the coil in the hood device.
  • at least the first coiling device and additionally or alternatively the rolling stand are combined with a heating device, the effectiveness of which is increased by a cover device which shields the coil in the area of the reel device or the magnesium strip in the region of the rolling stand against heat radiation.
  • the Coilurchtrittsö réelle is formed closable, so that after introduction of the coil during operation of the reel device even better shielding against heat loss is achieved.
  • the heating device is arranged on the hood device, so that the hood devices are designed as modular retrofittable, combinable with existing reeling units units that already have the heater without a separate installation of the heater to the reel or the Roll stand would be necessary.
  • the heaters independently of the hood device, for example by arranged in the range of working or backup rolls heat radiators, which may be provided with separate shields, and / or the hood device as a the entire rolling mill or to form the finishing roller device shielding vapor hood.
  • the hood device of the reel device identifies a reel passage opening on its housing side facing a base surface of the finish roller device for introducing or for applying a coil for receiving the coil. This makes it possible, for example, after the unwinding of the magnesium tape from a recorded in the reel spool, remove the coil without removing the hood device of the reel device from the reel and before rewinding the magnesium tape at the following stitch a new, preheated coil in the reel to use, so that the magnesium strip undergoes no cooling by a heat transfer to the coil, but rather by the heated coil, a heat input into the magnesium band.
  • a coil providing means for providing at least one coil is arranged, which is provided with a coil handling device, for insertion or application the coil is used in or out of a coil receiving device arranged in the hood device of the reel device.
  • the coil supply device is provided with a heating device.
  • the bobbin supply device comprises a horizontal conveyor for storing the plurality of bobbins in a transfer position
  • the bobbin handling device has a vertical conveyor for conveying the bobbins between the transfer position and a bobbin position in the bobbin receiving device.
  • the inventive method has to achieve the object, the features of claim 10.
  • At least the first coiling device and / or the rolling stand is provided during operation with a coil accommodated in the coiling device or the magnesium strip conveyed by the rolling gap against heat radiation shielding hood, and the coil or the magnesium strip is in after insertion of the coil the hood device by a on a side facing away from the rolling mill side of the hood means by means of a heating device with heat.
  • the bobbin arranged inside the hood device is removed from a bobbin receiving device of the bobbin by means of a bobbin handling device located beneath a base of the finishing roll device and at the same time the coiled-up magnesium strip is removed from the bobbin by means of the bundle wagon the outlet side is transported in a coil tray.
  • finishing roller device for explaining a preferred variant of the method for producing a thin magnesium tape in the finishing roller device is explained in more detail with reference to the drawing.
  • finishing roller device 10 As shown in the drawing, comprising a finishing roll device 10 as essential components a rolling mill 11 and two roll stand 11 between them receiving reels 12, 13, which are arranged together with the roll stand on a common floor level 14.
  • the finishing roller device 10 is supplemented by a preheating furnace 15, which in one embodiment is arranged as an overhead furnace above and at a distance from the floor level 14.
  • a horizontal conveyor 16 coil supply device 17 Below the corridor level 14 is provided with a horizontal conveyor 16 coil supply device 17, the two below the reeling devices 12, 13 arranged coil handling devices 18, 19 are assigned, each having a vertical conveyor 20.
  • both the two reeling devices 12, 13 and the rolling stand 11 are each provided with a hood device 21 or 22 in the exemplary embodiment shown.
  • the hood devices 21 of the reeling devices 12, 13 each have a co-passage opening 23 which, in the case of the reeling device 13 arranged on an inlet side 24 of the rolling stand 11, is opposite the preheating furnace 15 and in the case of the reeling device 12 arranged on an outlet side 25 of the rolling stand 11 is disposed opposite a coil tray 26.
  • Both hood devices 21 furthermore have in each case the corridor plane 14 facing coil passage openings 41.
  • the hood devices 21 are provided in their interior with heaters 27, which are formed for example as a heat radiator and aligned so that they emit heat energy in the direction of a coil receiving device 28, such that in the case of one on the respective coil receiving device 28 of the coiler 12 and 13 arranged coils 29 is applied to the coil wound magnesium tape 30 and the coil receiving device 28 within the hood device 21 with heat energy.
  • heaters 27 are formed for example as a heat radiator and aligned so that they emit heat energy in the direction of a coil receiving device 28, such that in the case of one on the respective coil receiving device 28 of the coiler 12 and 13 arranged coils 29 is applied to the coil wound magnesium tape 30 and the coil receiving device 28 within the hood device 21 with heat energy.
  • the rolling mill 11 associated hood device 22 is formed in the present case in the manner of a vapor hood and forms a arranged at the upper end of the roll stand 11 shielding or reflecting means for in the region of the roll stand 11 emitted heat energy.
  • the rolling stand in the present case has two work rolls 32, 33 defining a roll gap 31 and two support rolls 34, 35 supporting one work roll 32, 33 each.
  • the rolling stand 11 heaters 37 arranged in pairs opposite one another, wherein the support rollers 34, 35 are located between the heaters 37 and thus by means of the heating means 37 can be acted upon with thermal energy. Notwithstanding the arrangement of the heater 37 on the frame 36, it is also possible to combine them with the hood device 22 of the roll stand 11.
  • a coil 29 heated or preheated in the preheating furnace 15 is transferred to a coil or coil carriage 38 arranged below the preheating furnace 15. Subsequently, the coil carriage is positioned on the floor level 14 under the coil receiving device 28 of the arranged on the inlet side 24 coiler 13 and transferred by receiving a coil 39 of the coil 29 in the coil receiving device 28 to the coiler 13. During the transfer, the coil carriage 38 moves with the coil 29 into the hood device 21 through the coil passage opening 23 or the coil passage opening 41 formed on the hood device 21.
  • the representation chosen in the drawing corresponds to a phase in the course of an executed engraving, in which about half of the originally arranged on the coil 29 magnesium bands 30 to those in the as a coiler operated reel 12 arranged coil 39 has been transmitted.
  • a defined number of passes are carried out in reversing operation, so that the reeling devices 12 and 13 are operated alternately as uncoiling and reeling.
  • the entire length of the magnesium strip 30 is located on the reel 39 arranged in the reeling device 12 so that the reel 29 arranged in the reeling device 12 is transferred from the reel receiving device 28 of the reeling device 12 to the co bunding carriage 43 arranged on the outlet side 25 is then conveyed out through the Coil thoroughly trecsö réelle 23 with the coil 29 from the hood device 21 for transferring the coil 29 from the coil carriage 43 to the coil tray 26th
  • a new coil 29 can be transferred from the preheating oven 15 by means of the bundle wagon 38 to the inlet-side coiler 13 on the inlet side 24.
  • the empty reel 39 of the reel device 13 is removed by the reel handling device 19 and fed to the reel-supplying device 17.
  • the finished rolled coil is conveyed to the coil tray 26 by means of the bundle carriage 43, and a coil 39 preheated in the coil supply means 17 and preheated by a heater 44 provided at the coil supply means 17 is inserted into the coil receiving means 28 of the coiler 12.
  • the coil 39 by means of the coil handling device 18, 19 after promotion to a transfer position 45 by means of the horizontal conveyor 16 of the coil supply device 17 is replaced by the previously arranged in the coiler 12 coil 39.
  • the bobbin handling devices 18, 19 each have a vertical conveyor 20 arranged below the bobbin receiving device 28 of the reeling devices 12, 13.
  • the hood device 22 of the roll stand 11 is formed so that it between the Reels 12, 13 formed conveyor line covered, so that the hood means 22 not only forms a shield against heat radiation in the field of rolling stand 11, but also in the area of the entire finishing roller device 10.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Winding, Rewinding, Material Storage Devices (AREA)
  • Metal Rolling (AREA)

Description

Die vorliegende Erfindung betrifft eine Fertigwalzeinrichtung zur Herstellung eines dünnen Magnesiumbands auf Basis eines der Fertigwalzeinrichtung, insbesondere nach Vorwärmung in einem Vorwärmofen, zugeführten Coils gemäß dem Oberbegriff des Anspruchs 1. Desweiteren betrifft die Erfindung ein Verfahren zur Herstellung eines dünnen Magnesiumbands in einer derartigen Fertigwalzeinrichtung gemäß dem Oberbegriff des Anspruchs 10.The present invention relates to a finishing roll device for producing a thin magnesium strip based on a finished roll device, in particular after preheating in a preheating furnace, fed coils according to the preamble of claim 1. Furthermore, the invention relates to a method for producing a thin magnesium strip in such a finishing roll device according to the The preamble of claim 10.

Der Herstellung von Magnesiumdünnblech kommt aufgrund der sich entwickelnden Nachfrage eine zunehmende Bedeutung zu. Insbesondere hat sich gezeigt, dass sich Magnesiumblech für die Herstellung von Fahrzeugkarosserien eignet, wobei das Magnesiumblech bei Festigkeitseigenschaften, die mit denen von Aluminiumblech vergleichbar sind, ein geringeres Gewicht aufweist, so dass hier ein entsprechendes Potential für weitere Möglichkeiten zur Energieeinsparung im Betrieb von Kraftfahrzeugen neben den Entwicklungen neuer Antriebskonzepte bestehen.The production of magnesium thin sheet is becoming increasingly important due to the evolving demand. In particular, it has been found that magnesium sheet is suitable for the production of vehicle bodies, the magnesium sheet having strength properties which are comparable to those of aluminum sheet, having a lower weight, so that here a corresponding potential for further ways to save energy in the operation of motor vehicles in addition consist of the developments of new drive concepts.

Die Herstellung von Magnesiumblech hat sich jedoch im Vergleich zur Herstellung von Stahl- oder Aluminiumblech als vergleichsweise kompliziert herausgestellt, da sich Magnesium aufgrund seiner hexagonalen Gitterstruktur bei den üblicherweise beim Kaltwalzen vorliegenden Verarbeitungstemperaturen als spröde erweist, so dass zur erfolgreichen Herstellung von Magnesiumblech die Einhaltung eines definierten Temperaturbereichs, der etwa zwischen 230°C und 450°C liegt, notwendig ist, um die in diesem Temperaturbereich erreichbare relative Duktilität des Werkstoffs zur Verarbeitung nutzen zu können.The production of magnesium sheet, however, has turned out to be comparatively complicated in comparison to the production of steel or aluminum sheet, since magnesium proves to be brittle due to its hexagonal lattice structure at the processing temperatures usually present during cold rolling, so that the successful production of magnesium sheet adherence to a defined Temperature range, which is approximately between 230 ° C and 450 ° C, is necessary in order to use the achievable in this temperature range relative ductility of the material for processing can.

Aus der DE 10 2006 036 224 A1 ist als Bestandteil einer Fertigungslinie zum Erzeugen eines Magnesiumbands eine Fertigwalzeinrichtung bekannt, bei deren Betrieb verschiedene Maßnahmen genutzt werden, um ein erhöhtes Temperaturniveau des zu einem Coil gewickelten Magnesiumbands nach Eintritt in die Fertigwalzeinrichtung aufrechtzuerhalten. So sind etwa an den Haspeleinrichtungen der Fertigwalzeinrichtung die im Reversierbetrieb betrieben wird, Wickelhülsen vorgesehen, die eine äußere Einhausung von Haspeldornen bilden, so dass auf dem Haspeldorn angeordnetes Magnesiumband durch die Wickelhülse abgedeckt wird, um einen Temperaturverlust in der Haspeleinrichtung gering zu halten. Weiterhin ist auf der Auslaufseite des Walzgerüstes der bekannten Fertigwalzeinrichtung zwischen dem Walzgerüst und der auslaufseitigen Haspeleinrichtung ein Durchlaufofen angeordnet, der eine Erwärmung des Magnesiumbands während des Reversierbetriebs ermöglicht.From the DE 10 2006 036 224 A1 As part of a production line for producing a magnesium strip, a finish rolling device is known in whose operation various measures are used to maintain an elevated temperature level of the wound to a coil magnesium tape after entering the finishing roller device. For example, winding tubes are provided on the reeling devices of the finishing roller device which are operated in reversing mode, which form an outer housing of reel mandrels, so that magnesium tape arranged on the reel mandrel is covered by the winding tube in order to keep a temperature loss in the reel device low. Furthermore, a continuous furnace is arranged on the outlet side of the roll stand of the known finishing roller device between the rolling stand and the outlet side coiler, which allows heating of the magnesium belt during the reversing operation.

Bei der bekannten Fertigwalzeinrichtung stellt der zusätzliche Durchlaufofen eine ergänzende Komponente der Fertigungslinie dar, so dass einerseits ein erhöhter Installationsaufwand beziehungsweise Platzbedarf für die Fertigwalzeinrichtung besteht, und andererseits durch die zwischenliegende Anordnung des Durchlaufofens eine Verlängerung der Bandförderstrecke zwischen den Haspeleinrichtungen die Folge ist und somit die Bandoberfläche zwischen den Haspeleinrichtungen vergrößert wird. Daher wird die im Durchlaufofen erreichte Temperaturerhöhung des Magnesiumbands zumindest teilweise wieder durch erhöhte Temperaturverluste kompensiert.In the known finishing roller device, the additional continuous furnace is a supplementary component of the production line, so that on the one hand increased installation effort or space required for the finishing roller means, and on the other hand by the intermediate arrangement of the continuous furnace an extension of the belt conveyor between the reels is the result and thus the belt surface between the reels is increased. Therefore, the temperature increase achieved in the continuous furnace of the magnesium band at least partially compensated by increased temperature losses.

Aus der JP 2009 098548 A ist eine Fertigwalzeinrichtung zur Herstellung eines dünnen Magnesiumbands auf Basis eines der Fertigwalzeinrichtung zugeführten Coils bekannt, umfassend ein Walzgerüst zur Aufnahme von zumindest zwei einen Walzspalt definierenden Arbeitswalzen, eine erste Haspeleinrichtung zur Aufnahme des Coils und Zuführung des Magnesiumbands zum Walzspalt und eine zweite Haspeleinrichtung zum Aufhaspeln des Magnesiumbands nach Durchlaufen des Walzspaltes. Zumindest die erste Haspeleinrichtung ist mit einer Heizeinrichtung sowie einer das Coil bzw. das Magnesiumband gegen Wärmeabstrahlung abschirmenden Haubeneinrichtung versehen.From the JP 2009 098548 A a finishing roll device for producing a thin magnesium strip based on a finished roll means is known coils comprising a roll stand for receiving at least two nip defining a work rolls, a first coiler means for receiving the coil and feeding the magnesium strip to the nip and a second coiler means for coiling the Magnesium bands after passing through the nip. At least the first reeling device is provided with a heating device and a hood device which shields the coil or the magnesium strip against heat radiation.

Der vorliegenden Erfindung liegt die Aufgabe zugrunde, eine Fertigwalzeinrichtung beziehungsweise ein Verfahren zur Herstellung eines dünnen Magnesiumbands in einer Fertigwalzeinrichtung vorzuschlagen, die beziehungsweise das die vorstehenden Nachteile beseitigt und eine effektivere Erwärmung des Magnesiumbands in der Fertigwalzeinrichtung ermöglicht.It is an object of the present invention to propose a finish rolling mill or a process for producing a thin magnesium strip in a finishing mill which eliminates the above disadvantages and enables more effective heating of the magnesium strip in the finish rolling mill.

Zur Lösung dieser Aufgabe weist die erfindungsgemäße Fertigwalzeinrichtung die Merkmale des Anspruch 1 auf.To solve this problem, the finishing roller device according to the invention has the features of claim 1.

Bei der erfindungsgemäßen Fertigwalzeinrichtung ist zumindest die erste Haspeleinrichtung und/oder das Walzgerüst, und hier vorzugsweise die Arbeitswalzen oder die Arbeitswalzen abstützende Stützwalzen, mit einer Heizeinrichtung sowie einer das Coil beziehungsweise das Magnesiumband gegen Wärmestrahlung abschirmenden Haubeneinrichtung versehen, wobei zumindest die Haubeneinrichtung der ersten Haspeleinrichtung an ihrer dem Walzgerüst abgewandten Gehäuseseite eine Coildurchtrittssöffnung zur Einbringung des Coils in die Haubeneinrichtung aufweist. Erfindungsgemäß sind somit zumindest die erste Haspeleinrichtung sowie zusätzlich oder auch alternativ das Walzgerüst mit einer Heizeinrichtung kombiniert, deren Wirksamkeit noch durch eine das Coil im Bereich der Haspeleinrichtung beziehungsweise das Magnesiumband im Bereich des Walzgerüstes gegen Wärmeabstrahlung abschirmende Haubeneinrichtung erhöht wird. Damit ist eine Erwärmung des Magnesiumbands im Bereich der Fertigwalzeinrichtung möglich, ohne nachteilige Auswirkung auf die zwischen den Haspeleinrichtungen ausgebildete Förderstrecke, so dass eine Erwärmung des Magnesiumbands erfolgen kann, ohne dass durch eine verlängerte Förderstrecke erhöhte potentielle Temperaturverluste möglich sind. Weiterhin besteht bei der erfindungsgemäßen Fertigwalzeinrichtung kein im Vergleich zu einer konventionellen Fertigwalzeinrichtung erhöhter Platzbedarf für die Installation.In the case of the finishing roller device according to the invention, at least the first reel device and / or the rolling stand, and here preferably the work rolls or the work rolls supporting support rolls, are provided with a heating device and a hood device which shields the coil or the magnesium strip against thermal radiation, at least the hood device of the first reeling device its shell side facing away from the housing side has a Coildurchtrittssöffnung for introducing the coil in the hood device. According to the invention, therefore, at least the first coiling device and additionally or alternatively the rolling stand are combined with a heating device, the effectiveness of which is increased by a cover device which shields the coil in the area of the reel device or the magnesium strip in the region of the rolling stand against heat radiation. In order for a heating of the magnesium tape in the finishing roll device is possible without adversely affecting the trained between the reeling conveyor line, so that heating of the magnesium tape can be done without increased by an extended conveyor line increased potential Temperature losses are possible. Furthermore, in the case of the finishing roller device according to the invention, there is no increased installation space required compared to a conventional finishing roller device.

Da zumindest die Haubeneinrichtung der ersten Haspeleinrichtung an ihrer dem Walzgerüst abgewandten Gehäuseseite eine Coildurchtrittsöffnung zur Einbringung des Coils in die Haubeneinrichtung aufweist, ist eine Entfernung der Haubeneinrichtung von der Haspeleinrichtung während der Beschickung der Haspeleinrichtung mit einem Coil nicht notwendig, so dass auch während des Beschickungsvorgangs keine vermeidbaren Temperaturverluste im Bereich der Haspeleinrichtung auftreten. Vorzugsweise ist die Coildurchtrittsöffnung verschließbar ausgebildet, so dass nach Einbringung des Coils während des Betriebs der Haspeleinrichtung eine noch bessere Abschirmung gegen Wärmeverluste erreicht wird.Since at least the hood device of the first coiling device on its side facing away from the mill stand has a Coilurchtrittsöffnung for introduction of the coil in the hood device, a removal of the hood means of the reel device during the charging of the coiler with a coil is not necessary, so that even during the loading process no avoidable temperature losses occur in the reel device. Preferably, the Coildurchtrittsöffnung is formed closable, so that after introduction of the coil during operation of the reel device even better shielding against heat loss is achieved.

Als besonders vorteilhaft erweist es sich, wenn die Heizeinrichtung an der Haubeneinrichtung angeordnet ist, so dass die Haubeneinrichtungen als modular nachrüstbare, mit bestehenden Haspeleinrichtungen kombinierbare Baueinheiten ausgebildet sind, die bereits die Heizeinrichtung aufweisen, ohne dass eine separate Installation der Heizeinrichtung an der Haspeleinrichtung oder dem Walzgerüst notwendig wäre.It proves to be particularly advantageous if the heating device is arranged on the hood device, so that the hood devices are designed as modular retrofittable, combinable with existing reeling units units that already have the heater without a separate installation of the heater to the reel or the Roll stand would be necessary.

Insbesondere hinsichtlich des Walzgerüstes ist es natürlich auch möglich, die Heizeinrichtungen unabhängig von der Haubeneinrichtung auszubilden, beispielsweise durch im Bereich der Arbeits- oder auch Stützwalzen angeordnete Wärmestrahler, die mit separaten Abschirmungen versehen sein können, und/oder die Haubeneinrichtung als eine das gesamte Walzgerüst oder die Fertigwalzeinrichtung abschirmende Dunsthaube auszubilden.In particular, with regard to the roll stand, it is of course also possible to form the heaters independently of the hood device, for example by arranged in the range of working or backup rolls heat radiators, which may be provided with separate shields, and / or the hood device as a the entire rolling mill or to form the finishing roller device shielding vapor hood.

Als besonders vorteilhaft erweist es sich, wenn die Haubeneinrichtung der Haspeleinrichtung an ihrer einer Standfläche der Fertigwalzeinrichtung zugewandten Gehäuseseite eine Spulendurchtrittsöffnung ausweist zur Einbringung beziehungsweise zur Ausbringung einer Spule zur Aufnahme des Coils. Hierdurch ist es möglich, beispielsweise nach erfolgter Abhaspelung des Magnesiumbands von einer in der Haspeleinrichtung aufgenommenen Spule, die Spule ohne Entfernung der Haubeneinrichtung von der Haspeleinrichtung aus der Haspeleinrichtung zu entnehmen und vor dem Aufhaspeln des Magnesiumbands beim nachfolgenden Stich eine neue, vorgewärmte Spule in die Haspeleinrichtung einzusetzen, so dass das Magnesiumband keine Abkühlung durch eine Wärmeübergang auf die Spule erfährt, sonder eher durch die aufgewärmte Spule ein Wärmeeintrag in das Magnesiumband erfolgt.It proves to be particularly advantageous if the hood device of the reel device identifies a reel passage opening on its housing side facing a base surface of the finish roller device for introducing or for applying a coil for receiving the coil. This makes it possible, for example, after the unwinding of the magnesium tape from a recorded in the reel spool, remove the coil without removing the hood device of the reel device from the reel and before rewinding the magnesium tape at the following stitch a new, preheated coil in the reel to use, so that the magnesium strip undergoes no cooling by a heat transfer to the coil, but rather by the heated coil, a heat input into the magnesium band.

Besonders vorteilhaft hinsichtlich des schnellen Auswechseln der Spule beziehungsweise hinsichtlich minimaler Handhabungs- oder Förderstrecken für die Spulen ist es, wenn in einer Unterfluranordnung unterhalb der Standfläche eine Spulenbereitstellungseinrichtung zur Bereitstellung mindest einer Spule angeordnet ist, die mit einer Spulenhandhabungseinrichtung versehen ist, die zur Einbringung beziehungsweise Ausbringung der Spule in eine beziehungsweise aus einer in der Haubeneinrichtung angeordneten Spulenaufnahmeinrichtung der Haspeleinrichtung dient.Particularly advantageous in terms of the rapid replacement of the coil or with respect to minimal handling or conveying lines for the coils, it is, if in a underfloor arrangement below the footprint a coil providing means for providing at least one coil is arranged, which is provided with a coil handling device, for insertion or application the coil is used in or out of a coil receiving device arranged in the hood device of the reel device.

Für die Vorwärmung der Spule ist es besonders geeignet, wenn die Spulenbereitstellungseinrichtung mit einer Heizeinrichtung versehen ist.For the preheating of the coil, it is particularly suitable if the coil supply device is provided with a heating device.

Zur Bereitstellung einer Mehrzahl von Spulen erweist es sich als besonders vorteilhaft, wenn die Spulenbereitstellungseinrichtung einen Horizontalförderer zur Magazinierung der Mehrzahl von Spulen in eine Übergabeposition umfasst, und die Spulenhandhabungseinrichtung einen Vertikalförderer zur Förderung der Spulen zwischen der Übergabeposition und einer Haspelposition in der Spulenaufnahmeeinrichtung aufweist.In order to provide a plurality of bobbins, it proves to be particularly advantageous if the bobbin supply device comprises a horizontal conveyor for storing the plurality of bobbins in a transfer position, and the bobbin handling device has a vertical conveyor for conveying the bobbins between the transfer position and a bobbin position in the bobbin receiving device.

Weitere vorteilhafte Maßnahmen zur Duchführung einer Beheizung der Fertigwalzeinrichtung sind Gegenstand der weiteren Unteransprüche.Further advantageous measures for carrying out a heating of the finishing roller device are the subject of the other dependent claims.

Das erfindungsgemäße Verfahren weist zur Lösung der Aufgabe die Merkmale des Anspruchs 10 auf.The inventive method has to achieve the object, the features of claim 10.

Bei dem erfindungsgemäßen Verfahren ist zumindest die erste Haspeleinrichtung und/oder das Walzgerüst während des Betriebs mit einer das in der Haspeleinrichtung aufgenommene Coil beziehungsweise das durch den Walzspalt geförderte Magnesiumband gegen Wärmeabstrahlung abschirmenden Haubeneinrichtung versehen, und das Coil beziehungsweise das Magnesiumband wird nach Einbringung des Coils in die Haubeneinrichtung durch eine an einer dem Walzgerüst abgewandten Seite der Haubeneinrichtung mittels einer Heizeinrichtung mit Wärme beaufschlagt.In the method according to the invention, at least the first coiling device and / or the rolling stand is provided during operation with a coil accommodated in the coiling device or the magnesium strip conveyed by the rolling gap against heat radiation shielding hood, and the coil or the magnesium strip is in after insertion of the coil the hood device by a on a side facing away from the rolling mill side of the hood means by means of a heating device with heat.

Bereits zu Beginn des Walzverfahrens können durch eine schnell durchführbare Übergabe des Coils an die Haspeleinrichtung auf der Einlaufseite des Walzgerüsts unnötige Temperaturverluste vermieden werden, so dass die durch die Heizeinrichtung im Bereich der Haubeneinrichtung in das Magnesiumband eingebrachte Wärmeenergie nicht bereits teilweise durch den Ausgleich unnötiger Temperaturverluste verbraucht wird.Already at the beginning of the rolling process can be avoided by a fast feasible transfer of the coil to the coiler on the inlet side of the rolling stand unnecessary temperature losses, so that introduced by the heater in the hood device in the magnesium band heat energy is not already partially consumed by the compensation of unnecessary temperature losses becomes.

Besonders vorteilhaft für eine schnelle Durchführung dieser Übergabe ist es, wenn die auf der Einlaufseite des Walzgerüstes angeordnete Haspeleinrichtung derart mit dem Coil beschickt wird, dass das auf einem Bundwagen angeordnete Coil mittels des Bundwagens durch die vom Walzgerüst abgewandte Coildurchtrittsöffnung zur Aufnahme in der Haspeleinrichtung in die Haubeneinrichtung eingebracht wird.Particularly advantageous for a quick implementation of this transfer is when the arranged on the inlet side of the rolling mill coiler is loaded with the coil that arranged on a coil coiled coil by means of the Bundwagens by the rolling stand facing away from Coilurchtrittsöffnung for receiving in the coiler in the Hood device is introduced.

Insbesondere in dem Fall, wenn vor Beschickung der einlaufseitigen Haspeleinrichtung das Coil in einem Vorwärmofen aufgewärmt worden ist, lassen sich somit Temperaturverluste auf einer Förderstrecke zwischen dem Vorwärmofen und der Haspeleinrichtung auf ein Minimum reduzieren.In particular, in the case when the coil has been warmed up in a preheating furnace prior to feeding the upstream coiling device, temperature losses on a conveying path between the preheating furnace and the coiling device can thus be reduced to a minimum.

Als besonders vorteilhaft erweist es sich auch, wenn nach Abhaspelung des Magnesiumsbands von der Spule die innerhalb der Haubeneinrichtung angeordnete Spule mittels einer unterhalb einer Standfläche der Fertigwalzeinrichtung angeordneten Spulenhandhabungseinrichtung aus einer Spulenaufnahmeeinrichtung der Haspeleinrichtung entnommen wird und gleichzeitig das aufgehaspelte Magnesiumband mittels des Bundwagens aus der Haspeleinrichtung auf der Auslaufseite in eine Coilablage transportiert wird.It proves to be particularly advantageous if, after unwinding of the magnesium tape from the bobbin, the bobbin arranged inside the hood device is removed from a bobbin receiving device of the bobbin by means of a bobbin handling device located beneath a base of the finishing roll device and at the same time the coiled-up magnesium strip is removed from the bobbin by means of the bundle wagon the outlet side is transported in a coil tray.

Wenn während der Beschickung der Haspeleinrichtung auf der Einlaufseite mit einem Coil auf der Auslaufseite ein Austausch der in der Spulenaufnahmeeinrichtung aufgenommen Spule erfolgt, lässt sich auch im Bereich der auslaufseitigen Haspeleinrichtung die Ausbildung einer Wärmesenke weitestgehend vermeiden.If, during the charging of the reel device on the inlet side with a coil on the outlet side, an exchange of the coil accommodated in the coil receiving device takes place, the formation of a heat sink can also be largely avoided in the area of the outlet side reeling device.

Vorteilhaft ist es auch, zu Beginn des Walzprozesses und/oder anlässlich eines während des Betriebs notwendig werdenden Walzenwechsels, Walzen zu verwenden, die zuvor außerhalb des Walzgerüstes vorgewärmt wurden.It is also advantageous to use, at the beginning of the rolling process and / or on the occasion of a roll change which becomes necessary during operation, rolls which were previously preheated outside the roll stand.

Nachfolgend wird eine bevorzugte Ausführungsform der Fertigwalzeinrichtung zur Erläuterung einer bevorzugten Variante des Verfahrens zur Herstellung eines dünnen Magnesiumbands in der Fertigwalzeinrichtung anhand der Zeichnung näher erläutert.Hereinafter, a preferred embodiment of the finishing roller device for explaining a preferred variant of the method for producing a thin magnesium tape in the finishing roller device is explained in more detail with reference to the drawing.

Wie in der Zeichnung dargestellt, umfassend eine Fertigwalzeinrichtung 10 als wesentliche Bestandteile ein Walzgerüst 11 und zwei das Walzgerüst 11 zwischen sich aufnehmende Haspeleinrichtungen 12, 13, die zusammen mit dem Walzgerüst auf einer gemeinsamen Flurebene 14 angeordnet sind. Wie in der Zeichnung ferner dargestellt, ist die Fertigwalzeinrichtung 10 im vorliegenden Fall ergänzt durch einen Vorwärmofen 15, der in einer Ausführung als Überkopfofen oberhalb und mit Abstand zur Flurebene 14 angeordnet ist. Unterhalb der Flurebene 14 befindet sich eine mit einem Horizontalförderer 16 versehene Spulenbereitstellungseinrichtung 17, der zwei unterhalb der Haspeleinrichtungen 12, 13 angeordnete Spulenhandhabungseinrichtungen 18, 19 zugeordnet sind, die jeweils einen Vertikalförderer 20 aufweisen.As shown in the drawing, comprising a finishing roll device 10 as essential components a rolling mill 11 and two roll stand 11 between them receiving reels 12, 13, which are arranged together with the roll stand on a common floor level 14. As further illustrated in the drawing, in the present case, the finishing roller device 10 is supplemented by a preheating furnace 15, which in one embodiment is arranged as an overhead furnace above and at a distance from the floor level 14. Below the corridor level 14 is provided with a horizontal conveyor 16 coil supply device 17, the two below the reeling devices 12, 13 arranged coil handling devices 18, 19 are assigned, each having a vertical conveyor 20.

Wie weiter der Darstellung der Fertigwalzeinrichtung 10 zu entnehmen ist, sind bei dem dargestellten Ausführungsbeispiel sowohl die beiden Haspeleinrichtungen 12, 13 als auch das Walzgerüst 11 jeweils mit einer Haubeneinrichtung 21 bzw. 22 versehen. Die Haubeneinrichtungen 21 der Haspeleinrichtungen 12, 13 weisen im vorliegenden Fall jeweils eine Coildurchtrittsöffnung 23 auf, die im Fall der auf einer Einlaufseite 24 des Walzgerüsts 11 angeordneten Haspeleinrichtung 13 gegenüberliegend dem Vorwärmofen 15 und im Fall der auf einer Auslaufseite 25 des Walzgerüstes 11 angeordneten Haspeleinrichtung 12 gegenüberliegend einer Coilablage 26 angeordnet ist. Beide Haubeneinrichtungen 21 weisen darüber hinaus jeweils der Flurebene 14 zugewandte Spulendurchtrittsöffnungen 41 auf. Die Haubeneinrichtungen 21 sind in ihrem Innern mit Heizeinrichtungen 27 versehen, die beispielsweise als Wärmestrahler ausgebildet und so ausgerichtet sind, dass sie Wärmeenergie in Richtung einer Spulenaufnahmeeinrichtung 28 abstrahlen, derart, dass im Falle eines auf der jeweiligen Spulenaufnahmeeinrichtung 28 der Haspeleinrichtung 12 beziehungsweise 13 angeordneten Coils 29 ein zum Coil gewickeltes Magnesiumband 30 sowie die Spulenaufnahmeeinrichtung 28 innerhalb der Haubeneinrichtung 21 mit Wärmeenergie beaufschlagt wird.As can further be seen in the illustration of the finishing roller device 10, both the two reeling devices 12, 13 and the rolling stand 11 are each provided with a hood device 21 or 22 in the exemplary embodiment shown. In the present case, the hood devices 21 of the reeling devices 12, 13 each have a co-passage opening 23 which, in the case of the reeling device 13 arranged on an inlet side 24 of the rolling stand 11, is opposite the preheating furnace 15 and in the case of the reeling device 12 arranged on an outlet side 25 of the rolling stand 11 is disposed opposite a coil tray 26. Both hood devices 21 furthermore have in each case the corridor plane 14 facing coil passage openings 41. The hood devices 21 are provided in their interior with heaters 27, which are formed for example as a heat radiator and aligned so that they emit heat energy in the direction of a coil receiving device 28, such that in the case of one on the respective coil receiving device 28 of the coiler 12 and 13 arranged coils 29 is applied to the coil wound magnesium tape 30 and the coil receiving device 28 within the hood device 21 with heat energy.

Die dem Walzgerüst 11 zugeordnete Haubeneinrichtung 22 ist im vorliegenden Fall nach Art einer Dunsthaube ausgebildet und bildet eine am oberen Ende des Walzgerüstes 11 angeordnete Abschirmung beziehungsweise Reflektionseinrichtung für im Bereich des Walzgerüsts 11 emittierte Wärmeenergie. Wie in der Zeichnung dargestellt, weist das Walzgerüst im vorliegenden Fall zwei einen Walzspalt 31 definierende Arbeitswalzen 32, 33 und zwei jeweils eine Arbeitswalze 32, 33 abstützende Stützwalzen 34, 35 auf. Im vorliegenden Fall sind in einem Gestell 36 des Walzgerüsts 11 Heizeinrichtungen 37 paarweise einander gegenüberliegend angeordnet, wobei sich die Stützwalzen 34, 35 zwischen den Heizeinrichtungen 37 befinden und somit mittels der Heizeinrichtungen 37 mit Wärmeenergie beaufschlagbar sind. Abweichend von der Anordnung der Heizeinrichtung 37 am Gestell 36 ist es auch möglich, diese mit der Haubeneinrichtung 22 des Walzgerüst 11 zu kombinieren.The rolling mill 11 associated hood device 22 is formed in the present case in the manner of a vapor hood and forms a arranged at the upper end of the roll stand 11 shielding or reflecting means for in the region of the roll stand 11 emitted heat energy. As shown in the drawing, the rolling stand in the present case has two work rolls 32, 33 defining a roll gap 31 and two support rolls 34, 35 supporting one work roll 32, 33 each. In the present case are in a frame 36 the rolling stand 11 heaters 37 arranged in pairs opposite one another, wherein the support rollers 34, 35 are located between the heaters 37 and thus by means of the heating means 37 can be acted upon with thermal energy. Notwithstanding the arrangement of the heater 37 on the frame 36, it is also possible to combine them with the hood device 22 of the roll stand 11.

Im Betrieb der beispielhaft dargestellten Fertigwalzeinrichtung 10 wird ein im Vorwärmofen 15 temperiertes bzw. vorgewärmtes Coil 29 auf einen unterhalb des Vorwärmofens 15 angeordneten Coil- oder Bundwagen 38 übergeben. Anschließend wird der Bundwagen auf der Flurebene 14 unter der Spulenaufnahmeeinrichtung 28 der auf der Einlaufseite 24 angeordneten Haspeleinrichtung 13 positioniert und durch Aufnahme einer Spule 39 des Coils 29 in der Spulenaufnahmeeinrichtung 28 an die Haspeleinrichtung 13 übergeben. Bei der Übergabe fährt der Bundwagen 38 mit dem Coil 29 in die Haubeneinrichtung 21 durch die an der Haubeneinrichtung 21 gebildete Coildurchtrittsöffnung 23 beziehungsweise die Spulendurchtrittsöffnung 41 ein. Nach erfolgter Aufnahme des Coils 29 in der Haspeleinrichtung 13 ermöglicht ein an der Haspeleinrichtung 13 oder der Haubeneinrichtung 21 angeordneter Coilöffner 42 den Zugriff auf den hier nicht näher dargestellten Bandanfang, der von der Einlaufseite 24 her in den Walzspalt 31 eingeführt und zu der auf der Auslaufseite 25 des Walzgerüsts 21 angeordneten Haspeleinrichtung 12 weitergeführt werden kann. Der hier nicht näher dargestellte Bandanfang wird dann mittels an sich bekannter Mittel, wie beispielsweise einer Anwickelvorrichtung, an einer in der Spulenaufnahmeeinrichtung 25 der Haspeleinrichtung 12 aufgenommenen Spule 39 fixiert, so dass nachfolgend entsprechend einer Abhaspelung des Magnesiumbands 30 in der Haspeleinrichtung 13 eine Aufhaspelung des Magnesiumbands 30 auf die Spule 39 in der Haspeleinrichtung 12 durchgeführt werden kann. Die in der Zeichnung gewählte Darstellung entspricht einer Phase im Verlauf eines durchgeführten Stichs, in der etwa die Hälfte der ursprünglich auf dem Coil 29 angeordneten Magnesiumbands 30 auf die in der als Aufhaspel betriebene Haspeleinrichtung 12 angeordnete Spule 39 übertragen wurde. Entsprechend der gewünschten Enddicke des in der Fertigwalzeinrichtung 10 bearbeiteten Magnesiumbands 30 wird eine definierte Anzahl von Stichen im Reversierbetrieb ausgeführt, so dass also die Haspeleinrichtungen 12 und 13 abwechselnd als Abhaspel und Aufhaspel betrieben werden.During operation of the prefabricated roller device 10 shown by way of example, a coil 29 heated or preheated in the preheating furnace 15 is transferred to a coil or coil carriage 38 arranged below the preheating furnace 15. Subsequently, the coil carriage is positioned on the floor level 14 under the coil receiving device 28 of the arranged on the inlet side 24 coiler 13 and transferred by receiving a coil 39 of the coil 29 in the coil receiving device 28 to the coiler 13. During the transfer, the coil carriage 38 moves with the coil 29 into the hood device 21 through the coil passage opening 23 or the coil passage opening 41 formed on the hood device 21. After receiving the coil 29 in the coiler 13 allows a arranged on the reel device 13 or the hood device 21 coil opener 42 access to the not shown here beginning of the tape, which is introduced from the inlet side 24 ago in the nip 31 and to the on the outlet side 25 of the rolling mill 21 arranged reeling device 12 can be continued. The beginning of the strip not shown here is then fixed by means known per se, such as a Anwickelvorrichtung, to a recorded in the coil receiving device 25 of the reeling device 12 coil 39 so that subsequently corresponding to a sheathing of the magnesium tape 30 in the coiler 13 a coiling of the magnesium tape 30 can be performed on the coil 39 in the coiler 12. The representation chosen in the drawing corresponds to a phase in the course of an executed engraving, in which about half of the originally arranged on the coil 29 magnesium bands 30 to those in the as a coiler operated reel 12 arranged coil 39 has been transmitted. In accordance with the desired final thickness of the magnesium strip 30 processed in the finishing roller device 10, a defined number of passes are carried out in reversing operation, so that the reeling devices 12 and 13 are operated alternately as uncoiling and reeling.

Nach Durchführung des letzten Stichs befindet sich die gesamte Länge des Magnesiumbands 30 auf der in der Haspeleinrichtung 12 angeordneten Spule 39, so dass das in der Haspeleinrichtung 12 angeordnete Coil 29 aus der Spulenaufnahmeeinrichtung 28 der Haspeleinrichtung 12 an den auf der Auslaufseite 25 angeordneten Bundwagen 43 übergeben wird, der anschließend durch die Coildurchtrittsöffnung 23 mit dem Coil 29 aus der Haubeneinrichtung 21 herausgefördert wird zur Übergabe des Coils 29 vom Bundwagen 43 auf die Coilablage 26.After the last stitch has been taken, the entire length of the magnesium strip 30 is located on the reel 39 arranged in the reeling device 12 so that the reel 29 arranged in the reeling device 12 is transferred from the reel receiving device 28 of the reeling device 12 to the co bunding carriage 43 arranged on the outlet side 25 is then conveyed out through the Coildurchtrittsöffnung 23 with the coil 29 from the hood device 21 for transferring the coil 29 from the coil carriage 43 to the coil tray 26th

Gleichzeitig mit der Übergabe des Coils 29 an die Coilablage 26 kann auf der Einlaufseite 24 ein neues Coil 29 aus dem Vorwärmofen 15 mittels des Bundwagens 38 an die einlaufseitige Haspeleinrichtung 13 übergeben werden.Simultaneously with the transfer of the coil 29 to the coil tray 26, a new coil 29 can be transferred from the preheating oven 15 by means of the bundle wagon 38 to the inlet-side coiler 13 on the inlet side 24.

Jeweils nach Beendigung des letzten Stichs, also wenn das Magnesiumband 30 von der als Abhaspel betriebenen Haspeleinrichtung 13 zu der als Aufhaspel betriebenen Haspeleinrichtung 12 übertragen wurde, wird die leere Spule 39 der Haspeleinrichtung 13 durch die Spulenhandhabungseinrichtung 19 entnommen und der Spulenbereitstellungseinrichtung 17 zugeführt. Gleichzeitig wird auf der Auslaufseite 25 das fertig gewalzte Coil mittels des Bundwagens 43 zur Coilablage 26 befördert und eine in der Spulenbereitstellungseinrichtung 17 bereitgehaltene und durch eine an der Spulenbereitstellungseinrichtung 17 vorgesehene Heizungseinrichtung 44 vorgewärmte Spule 39 wird in die Spulenaufnahmeeinrichtung 28 der Haspeleinrichtung 12 eingesetzt. Hierzu wird die Spule 39 mittels der Spulenhandhabungseinrichtung 18, 19 nach Förderung in eine Übergabeposition 45 mittels des Horizontalförderers 16 der Spulenbereitstellungseinrichtung 17 gegen die zuvor in der Haspeleinrichtung 12 angeordnete Spule 39 ausgetauscht. Zur Ausführung der Austauschbewegung weisen die Spulenhandhabungseinrichtungen 18, 19 jeweils einen unterhalb der Spulenaufnahmeeinrichtung 28 der Haspeleinrichtungen 12, 13 angeordneten Vertikalförderer 20 auf.After completion of the last pass, ie when the magnesium belt 30 has been transferred from the reel-operated reel device 13 to the reel-up reel device 12, the empty reel 39 of the reel device 13 is removed by the reel handling device 19 and fed to the reel-supplying device 17. At the same time, the finished rolled coil is conveyed to the coil tray 26 by means of the bundle carriage 43, and a coil 39 preheated in the coil supply means 17 and preheated by a heater 44 provided at the coil supply means 17 is inserted into the coil receiving means 28 of the coiler 12. For this purpose, the coil 39 by means of the coil handling device 18, 19 after promotion to a transfer position 45 by means of the horizontal conveyor 16 of the coil supply device 17 is replaced by the previously arranged in the coiler 12 coil 39. In order to carry out the replacement movement, the bobbin handling devices 18, 19 each have a vertical conveyor 20 arranged below the bobbin receiving device 28 of the reeling devices 12, 13.

Während der Förderung des Magnesiumbands 30 durch den Walzspalt 31 erfolgt einerseits eine Wärmeemission vom Magnesiumband 30 längs der zwischen den Haspeleinrichtungen 12, 13 ausgebildeten Förderstrecke. Zum andern erfolgt sowohl innerhalb der Haubeneinrichtungen 21 als auch innerhalb der Haubeneinrichtung 22 des Walzgerüsts 11 eine Wärmebeaufschlagung des Magnesiumbands 30 durch die Heizeinrichtungen 27, 37. Dem in der Zeichnung dargestellten Ausführungsbeispiel ist die Haubeneinrichtung 22 des Walzgerüsts 11 so ausgebildet, dass sie die zwischen den Haspeleinrichtungen 12, 13 ausgebildete Förderstrecke überdeckt, so dass die Haubeneinrichtung 22 nicht nur eine Abschirmung gegen Wärmeabstrahlung im Bereich des Walzgerüsts 11, sondern darüber hinaus auch im Bereich der gesamten Fertigwalzeinrichtung 10 ausbildet.During the promotion of the magnesium strip 30 through the nip 31, on the one hand, a heat emission from the magnesium strip 30 takes place along the conveying path formed between the reeling devices 12, 13. On the other hand, both within the hood devices 21 and within the hood device 22 of the roll stand 11, a heat treatment of the magnesium tape 30 by the heaters 27, 37. The embodiment shown in the drawing, the hood device 22 of the roll stand 11 is formed so that it between the Reels 12, 13 formed conveyor line covered, so that the hood means 22 not only forms a shield against heat radiation in the field of rolling stand 11, but also in the area of the entire finishing roller device 10.

Claims (14)

  1. A finishing roll device (10) for manufacturing a thin magnesium strip (30) based on a coil (29) that is fed to the finishing roll device, in particular after a preheating process in a preheating furnace (15), comprising a roll stand (11) for receiving at least two working rolls (32, 33) that define a roll gap (31), a first reel device (13) for receiving the coil and feeding the magnesium strip to the roll gap and a second reel device (13) for reeling the magnesium strip after it has passed through the roll gap, wherein
    at least the first reel device and/or the roll stand is provided with a heating device (27, 37) and a hood device (21, 22) that shields the coil or the magnesium strip against heat emission,
    characterised in that
    at least the hood device (21) of the first device (13) includes, on its housing side facing away from the roll stand (11), a coil passage opening (23) for introducing the coil (29) into the hood device.
  2. The finishing roll device according to claim 1,
    characterised in that
    the heating device (27) is arranged at the hood device (21).
  3. The finishing roll device according to claim 1 or 2,
    characterised in that
    the hood device (21) of the reel device (12, 13) includes, on its housing side facing a floor space of the finishing roll device (10), a spool passage opening (40) in order to respectively introduce and remove a spool (39) for receiving the coil (29).
  4. The finishing roll device according to claim 3,
    characterised in that
    a spool supply device (17) for supplying at least one spool (39) is arranged underneath the floor space in the form of a subsurface arrangement, having a spool handling device (18, 19) that serves for respectively introducing and removing the spool (39) into/from a spool receptacle device (28) of the reel device (12, 13) arranged in the hood device (21).
  5. The finishing roll device according to claim 4,
    characterised in that
    the spool supply device (17) is provided with a heating device (44) for heating the spool (39).
  6. The finishing roll device according to claim 4 or 5,
    characterised in that
    the spool supply device (17) comprises a horizontal conveyor (16) for magazining a plurality of spools (39) and conveying the spools into a transfer position (45), and the spool handling device (18, 19) includes a vertical conveyor (20) for conveying the spools between the transfer position and a reel position in the spool receptacle device (28).
  7. The finishing roll device according to one of the preceding claims,
    characterised in that
    the working rolls (32, 33) and/or support rolls (34, 35) that support the working rolls are realized in the form of heatable rolls.
  8. The finishing roll device according to one of the preceding claims,
    characterised in that
    at least the second reel device (12) includes a heatable spool receptacle device (28).
  9. The finishing roll device according to one of the preceding claims,
    characterised in that
    at least the second reel device (12) is provided with a heatable wind-up device.
  10. A method for manufacturing a thin magnesium strip (30) in a finishing roll device (10) based on a coil (29) that is fed to the finishing roll device, in particular after a preheating process in a preheating furnace (15), during which the magnesium strip is conveyed through a roll gap (31) formed in a roll stand (11) between two working rolls (32, 33) in the reversing mode such that two reel devices (12, 13) that receive the roll stand between each other are alternately operated as a off-reel and in-reel, wherein, during the operation, at least the first reel device and/or the roll stand is provided with a hood device (21, 22) that respectively shields the coil received in the reel device and the magnesium strip conveyed through the roll gap against heat radiation, and the coil or the magnesium strip is heated by means of a heating device (27),
    characterised in that
    the heating is effected after introduction of the coil into the hood device through a coil passage opening (23) on a housing side of the hood device of the first reel device facing away from the roll stand (11).
  11. The method according to claim 10,
    characterised in that
    the reel device (13) arranged on an inlet side (24) of the roll stand (11) is loaded with a coil (29) that was heated, in particular, in a preheating furnace (15) and is arranged on a spool (39) such that the coil is transferred to a coil buggy (38), if applicable, from the preheating furnace and introduced into the hood device (21) by means of the coil buggy through the coil passage opening (23) facing away from the roll stand in order to be received in the reel device (13).
  12. The method according to claim 10 or 11,
    characterised in that
    the spool (39) arranged within the hood device (21) is removed from a spool receptacle device (28) of the reel device (13) by means of a spool handling device (18, 19) that is arranged underneath a floor space of the finishing roll device (10) after the magnesium strip (30) has been unreeled from the spool (39), and simultaneously, the reeled magnesium strip (30) is transported from the reel device (12) into a coil depositing station (26) by means of the coil buggy (43).
  13. The method according to one of the claims 10 to 12,
    characterised in that
    the spool receptacle device (28) of the reel device (12) on the outlet side (25) of the roll stand (11) is assembled with a spool that was preheated in the spool supply device (17) by means of the spool handling device (18) while a coil (29) is loaded into the reel device (13) on the inlet side (24) of the roll stand.
  14. The method according to one of the claims 10 to 13,
    characterised in that
    working rolls (32, 33) and/or support rolls (34, 35) that support the working rolls are used in the roll stand (11) that were preheated outside the roll stand prior to the operation of the roll stand for manufacturing the magnesium strip (30).
EP11196160.3A 2011-01-24 2011-12-30 Final roller device and method for producing a magnesium strip in same Not-in-force EP2478974B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102011003046A DE102011003046A1 (en) 2011-01-24 2011-01-24 Finishing roll device and method for producing a magnesium strip in such

Publications (2)

Publication Number Publication Date
EP2478974A1 EP2478974A1 (en) 2012-07-25
EP2478974B1 true EP2478974B1 (en) 2013-07-24

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EP11196160.3A Not-in-force EP2478974B1 (en) 2011-01-24 2011-12-30 Final roller device and method for producing a magnesium strip in same

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US (1) US20120186317A1 (en)
EP (1) EP2478974B1 (en)
JP (1) JP5941680B2 (en)
KR (1) KR101843203B1 (en)
CN (1) CN102601115A (en)
DE (1) DE102011003046A1 (en)

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Publication number Publication date
KR101843203B1 (en) 2018-05-14
JP5941680B2 (en) 2016-06-29
KR20120085661A (en) 2012-08-01
JP2012152824A (en) 2012-08-16
DE102011003046A1 (en) 2012-07-26
EP2478974A1 (en) 2012-07-25
US20120186317A1 (en) 2012-07-26
CN102601115A (en) 2012-07-25

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