EP2996825B1 - Procédé et dispositif de fabrication de tôles en magnésium ou alliage de magnésium - Google Patents

Procédé et dispositif de fabrication de tôles en magnésium ou alliage de magnésium Download PDF

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Publication number
EP2996825B1
EP2996825B1 EP14734379.2A EP14734379A EP2996825B1 EP 2996825 B1 EP2996825 B1 EP 2996825B1 EP 14734379 A EP14734379 A EP 14734379A EP 2996825 B1 EP2996825 B1 EP 2996825B1
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EP
European Patent Office
Prior art keywords
profile
shaped
unit
metal sheet
rolling
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Application number
EP14734379.2A
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German (de)
English (en)
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EP2996825A1 (fr
Inventor
Ralf Anderseck
Andreas Jäger
Karl-Heinz Lindner
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D21/00—Casting non-ferrous metals or metallic compounds so far as their metallurgical properties are of importance for the casting procedure; Selection of compositions therefor
    • B22D21/002—Castings of light metals
    • B22D21/007—Castings of light metals with low melting point, e.g. Al 659 degrees C, Mg 650 degrees C
    • 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
    • B21C23/00—Extruding metal; Impact extrusion
    • B21C23/02—Making uncoated products
    • B21C23/04—Making uncoated products by direct extrusion
    • B21C23/06—Making sheets
    • 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
    • B21C35/00—Removing work or waste from extruding presses; Drawing-off extruded work; Cleaning dies, ducts, containers, or mandrels
    • B21C35/02—Removing or drawing-off work
    • B21C35/023—Work treatment directly following extrusion, e.g. further deformation or surface treatment
    • 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
    • B21C35/00—Removing work or waste from extruding presses; Drawing-off extruded work; Cleaning dies, ducts, containers, or mandrels
    • B21C35/02—Removing or drawing-off work
    • B21C35/03—Straightening the work
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C37/00—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape
    • B21C37/02—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape of sheets
    • 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
    • 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
    • B21D35/00—Combined processes according to or processes combined with methods covered by groups B21D1/00 - B21D31/00
    • B21D35/002—Processes combined with methods covered by groups B21D1/00 - B21D31/00
    • B21D35/005—Processes combined with methods covered by groups B21D1/00 - B21D31/00 characterized by the material of the blank or the workpiece
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D5/00—Bending sheet metal along straight lines, e.g. to form simple curves
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
    • B22D11/001—Continuous casting of metals, i.e. casting in indefinite lengths of specific alloys
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
    • B22D11/04—Continuous casting of metals, i.e. casting in indefinite lengths into open-ended moulds
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
    • B22D11/12—Accessories for subsequent treating or working cast stock in situ
    • B22D11/1206—Accessories for subsequent treating or working cast stock in situ for plastic shaping of strands
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
    • B22D11/12—Accessories for subsequent treating or working cast stock in situ
    • B22D11/1226—Accessories for subsequent treating or working cast stock in situ for straightening strands
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
    • B22D11/12—Accessories for subsequent treating or working cast stock in situ
    • B22D11/1233—Accessories for subsequent treating or working cast stock in situ for marking strands
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
    • B22D11/12—Accessories for subsequent treating or working cast stock in situ
    • B22D11/126—Accessories for subsequent treating or working cast stock in situ for cutting
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
    • B22D11/14—Plants for continuous casting
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
    • B22D11/16—Controlling or regulating processes or operations
    • B22D11/163—Controlling or regulating processes or operations for cutting cast stock
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D21/00—Casting non-ferrous metals or metallic compounds so far as their metallurgical properties are of importance for the casting procedure; Selection of compositions therefor
    • B22D21/02—Casting exceedingly oxidisable non-ferrous metals, e.g. in inert atmosphere
    • B22D21/04—Casting aluminium or magnesium
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C23/00—Alloys based on magnesium
    • 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
    • B21C23/00—Extruding metal; Impact extrusion
    • B21C23/02—Making uncoated products
    • B21C23/04—Making uncoated products by direct extrusion
    • B21C23/08—Making wire, bars, tubes
    • B21C23/085—Making tubes
    • 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
    • B21D25/00—Working sheet metal of limited length by stretching, e.g. for straightening
    • B21D25/04—Clamping arrangements

Definitions

  • the invention relates to a method and a plant for the production of metal sheets of extruded profiles of small thickness, which are in particular made of magnesium or magnesium alloys, by means of an extrusion press.
  • DE 101 50 021 B4 discloses a method and an apparatus for producing profiles or sheet metal parts from magnesium or magnesium alloys by means of pressure forming by extrusion, rolling, forging or casting, wherein the liquid melt is introduced into a continuous casting or extrusion for producing a semi-finished product and immediately thereafter by this semi-finished Forming is brought into its final form in the hot state, wherein the temperature of the material after solidification from the melt during the entire production in a range of 250 ° C to 530 ° C. is held and the manufacturing process is carried out from casting to cooling of the moldings in total in an inert atmosphere or in a vacuum.
  • the apparatus for carrying out these method steps is characterized in that the arrangement consists of a linking of a melting furnace, a continuous casting or extrusion device, with and without roll stand, a cutting device of one or more presses and a cooling device, the entirety or parts of the aforementioned devices are arranged in a protective gas or vacuum space.
  • the device specified for carrying out this method which consists of a linking of a melting furnace or crucible, a continuous casting device, one or more rolling stands, a cutting device, one or more presses and a cooling device and is operated in a protective gas or vacuum space is characterized in that a punching device is provided between the cutting device and the press designed as a forming press, with which punching and / or forming holes which are dimensionally and cross-section stable can be introduced into the blanks coming from the cutting device.
  • a disadvantage of this method it is also that only parts can be made with a limited width, because for larger parts, a considerable overhead for the working pressures to be controlled is required.
  • the tool and the machine frame must withstand the pressure applied during the manufacture of the semi-finished products or the parts pressing pressure with a corresponding back pressure and thus necessarily be dimensioned much larger.
  • the DE 43 33 500 C2 discloses a method for producing a cross-sectionally stepped and solid profile sheet with different wall thicknesses, in which first a semifinished product is produced whose cross section is similar to the cross section of the sheet in the thickness direction, and in which a sheet is rolled from the semifinished product, for the production of the semi-finished product, a hollow profile with circumferentially distributed, the desired wall thickness profile of the semifinished product corresponding wall thickness profile is extruded, while the hollow profile is separated along a surface line and formed into the semifinished product. Furthermore, two complementary profiles are superimposed, wherein at least one of the profiled contact sides of the complementary profiles is provided with a release agent, and the two complementary profiles are rolled out simultaneously with cylindrical, that is unampled rolls. Before rolling, the two complementary profiles are separated on two opposite generatrices.
  • Two parts are produced by this method.
  • the production process is discontinuous and only relatively narrow parts can be produced.
  • a disadvantage is further that due to the manufacture of the finished with two different wall thicknesses semi-finished product and a stepped roller assembly of the manufacturing process is relatively expensive.
  • the method comprises the steps of extruding or continuously casting a tubular body, cutting open the tubular body in its longitudinal direction, widening the tubular body into a flat body, rendering the flat body into a component that conforms to the drawing by means of production technologies known per se.
  • the device essentially consists of a linking of a melting unit, a continuous casting or extrusion unit, a longitudinal cutting device, a rolling stand, one or more forming units.
  • From the DE 10 2007 002 322 A1 is a process for the production of sheet metal or sheet metal parts from light metal, preferably magnesium, known, wherein in one or more preceding process steps an extruded profile in an open structure or a closed structure with subsequent slitting is made into an open structure and this then in one or several steps is subjected to straightening and directional bending over several rolling and bending stages.
  • the GB 2469 549 A on which the preamble of the independent claims 1 and 5 based, describes a method for producing a support structure, preferably a support structure for a vehicle seat with at least one seat shell for the seat part and / or the backrest of the vehicle seat, with the steps of producing a metallic semi-finished and Forming the same into a substantially flat sheet metal, separating a sheet metal part from the sheet metal and deforming the sheet metal part, wherein the production of the metallic semi-finished product is carried out by extrusion.
  • the US 2,681,734 A describes a device for extruding wide sheets, comprising a die element with a base portion in the form of an elongated U-shaped slot for producing a profile in U-shape, which is then flattened.
  • the US Pat. No. 1,133,903 A describes the conversion of metal tubes into flat strips by separating the tubes in the longitudinal direction and widening by means of a double flight and subsequent rolling.
  • the US 3,002,255 A describes a method for producing continuous metal strips and the like. Fabrication is accomplished by sequentially extruding a plurality of blocks in a shape other than flat, stepwise flattening following extrusion, and holding the mold under tension during the flattening step and winding the previously flattened strips during each extrusion step.
  • the GB 556 061 A describes an improvement in the production of iron and steel sheets from pipes which are continuously produced by casting. After leaving the die of the extruder these are cut longitudinally and widened by means of forming rollers and smoothed.
  • the US 5,829,298 A describes a method and apparatus for the continuous production of metal strips wherein a workpiece is fed to a punch to form a circular cross-section tube and slot formed therein and the tube is opened and flattened outwardly in the opposite direction in the slot region.
  • the object of the invention is that a method and a plant for the production of metal sheets of rope-shaped profiles of small thickness, in particular of magnesium or magnesium alloys, indicate, wherein the emerging from an extrusion die open or closed extrusion can be formed into a metal sheet.
  • this object is achieved by the specified embodiment of the steps mentioned in claim 1 and the characterizing features mentioned in claim 5.
  • the emerging from the extrusion die of an extruder open or closed extrusion becomes a flat sheet deformed and then subjected to a defined deformation by stretching.
  • a first step the extruded from the die extrusion is separated according to the length of the metal sheet to be produced and bent in a second step, the open or closed extruded into a U-shaped profile, the closed profile is previously separated along its surface line.
  • the U-shaped profile is placed in a take-up unit and grasped by means of gripping elements on the longitudinal sides of the U-shaped profile to deform in a fourth step by means of the outwardly moving gripping elements U-shaped profile to a metal sheet , Subsequently, in a fifth step, the metal sheets are smoothed in a defined stretching process.
  • the deformation of the U-shaped profile to a metal sheet can be supported by a pair of rollers, which is retracted into the U-shaped profile and by moving the individual rollers respectively in the direction of the longitudinal edge regions.
  • the deformation to the metal sheet is preferably carried out in a temperature range above 200 ° C and in a preferably inert atmosphere.
  • the plant consists of an extrusion press with a die producing the extrusion profile and a deformation unit adjoining the die, wherein the deformation unit is formed from a separation unit, a bending unit and a take-up unit.
  • the reeling unit may consist of either two movable gripping elements or one fixed and one movable gripping element. Alternatively, the reeling unit may consist of two movable rollers which can be moved into the U-shaped profile, the individual rollers being movable away from one another in the direction of the edge regions.
  • the rollers are formed from a combination of gripping elements and two movable in the U-shaped profile retractable rollers.
  • the rollers can be provided with a heat-resistant elastic surface coating. The roles that are used here are designed so that they do not cause surface damage.
  • the FIG. 1 shows the basic structure of the plant for carrying out the process for the production of metal sheets from extruded profiles.
  • the plant consists essentially of an extruder 1 for producing an extruded profile and a forming device 5. This consists of a separation unit 2, a Aufbiegeech 3 and a take-up unit 4th
  • a billet of magnesium alloy is formed into an extruded profile, for example, to a tubular profile.
  • the extruder 1 is stopped when the tubular profile has reached the length corresponding to the predetermined length of the metal sheet.
  • the separation unit 2 By means of the separation unit 2 , the tubular profile is cut to length.
  • the separator 2 may for example consist of a rotating jet nozzle, a laser, cutting rollers or a follower saw. If the separation of the tubular profile is done by cutting, is a suction device designed to minimize the risk of fire due to magnesium chips or magnesium dusts. It is also possible to introduce at the separation point a notch with a depth of 25 to 85% of the wall thickness and tear off the section of the tubular profile.
  • the separated portion of the tubular profile of the Aufbiegeech 3 is handed over.
  • the portion of the tubular profile is separated along a lateral surface and bent by means of a slot wedge and optionally some roles to a U-shaped profile.
  • touches of the pipe take place only at areas of the cut surfaces, which are later in the waste area of the sheet.
  • the separation can be done for example by a longitudinally movable Saugstrahldüse, a laser cutting device or the like.
  • This consists of a flat base and two movable gripping elements, wherein the gripping elements grasp the longitudinal sides of the U-shaped profile and roll up the U-shaped profile to a flat metal sheet.
  • FIG. 2 shows a tooling concept for a bridge tool for extruding open tubular profiles 8.
  • the bridge tool consists essentially of the die 6 and the mandrel part 7, between which a gap is formed, which determines the wall thickness of the profile 8 .
  • profiled ends 9 are provided.
  • FIG. 3 a and 3 b show variants for the profiled ends 9. These can be angled or formed as a thickening.
  • the profile 8 is cut by means of a separating device to a corresponding length.
  • the expansion can be done on the one hand via form rollers 10 .
  • form rollers 10 These form as in FIG. 4 shown, a kind of rail guide and expand the tubular profile 8 to a U-shaped profile 8 .
  • the separated open tubular profile 8 can be pushed with its longitudinal opening onto two movable angle strips 11 or the open tubular profile can be pushed onto the movable angle strips 11 immediately after leaving the pressing die ( FIG. 5 a) , By moving apart the angle strips 11 , the open tubular profile 8 is bent U-shaped ( FIG. 5 b) ,
  • the U-shaped bent profile 8 is then transferred to a take-up unit 4 .
  • the profile 8 is detected on its longitudinal sides by means of the collets 12 ( Fig. 5c, Fig. 5 d) and rolled up into a flat sheet 13 ( Fig. 5 e) , Due to the profiled ends 9 , a secure gripping and holding the profile 8 can be ensured.
  • the collets 12 are designed to float and one or both sides connected to hydraulic cylinders, whereby an adaptation to the profiled ends 9 of the longitudinal edges of the profile 8 is achieved. A slight concave or convex deflection at the profiled ends 9 at the longitudinal edges can thereby be compensated.
  • the rolled-up profile 8 is stretched linearly over the hydraulic cylinders.
  • the overpolishing rotational movement of the collets 12 is performed via the pivotable hydraulic cylinder.
  • the stretched material is free of disturbing buckling forces ( Fig. 5 f) ,
  • the floating collets 12 are aligned against fixed stops, whereby a constant stretching over the entire sheet width is ensured.
  • they are provided with a ceramic coating.
  • the collets 12 are opened and the stretched plate 13 is pushed in the longitudinal direction by means of a pneumatic cylinder.
  • the stretched plate 13 can now be handed over, on the one hand, in connection with a forming process, for example by pressing, stamping or the like. On the other hand, it is also possible to trim the stretched sheets 13 - removing the profiled ends - and to stack the sheets 13 .
  • a significant advantage of the method and the system is that by means of the gripping elements stretching of the metal sheet in the transverse direction can be performed.
  • stretching in the transverse direction can take place in a range of 1 to 10%.
  • the flatness can be significantly improved and on the other hand, a thickness configuration of the metal sheet can be achieved.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Extrusion Of Metal (AREA)
  • Bending Of Plates, Rods, And Pipes (AREA)

Claims (8)

  1. Procédé de fabrication de tableaux en tôle à partir de profilés extrudés de faible épaisseur à base de magnésium ou d'alliages de magnésium, le procédé comprenant une étape préparatoire de production d'un profilé extrudé ouvert ou fermé et, s'il s'agit d'un profilé fermé, de découpage de ce dernier le long de sa génératrice
    qui se caractérise par le fait que,
    - dans une première étape, le profilé extrudé est découpé ou entaillé en fonction de la longueur du tableau en tôle que l'on souhaite obtenir ;
    - dans une deuxième étape, le profilé extrudé ouvert ou fermé est plié en U après la découpe du profilé fermé le long de la génératrice ;
    - dans une troisième étape, le profilé en U est introduit dans un enrouleur et qu'il est serré par des dispositifs de préhension sur les côtés dans le sens longitudinal ;
    - dans une quatrième étape, le profilé en U est formé par le mouvement vers l'extérieur des dispositifs de préhension mobiles pour obtenir un panneau en tôle et,
    - dans une cinquième étape, les panneaux en tôle sont soumis à un formage par étirage jusqu'à atteindre des dimensions définies.
  2. Installation selon la revendication 1
    qui se caractérise par le fait que
    le formage du profilé en U pour fabriquer un panneau en tôle est obtenu en introduisant le profilé entre une paire de cylindres qui tournent chacun dans la direction des bords longitudinaux.
  3. Installation selon les revendications 1 et 2
    qui se caractérise par le fait que
    le formage s'effectue dans une plage de température située au-dessus de 200°C.
  4. Installation selon la revendication 1
    qui se caractérise par le fait que
    les étapes 1 à 5 du procédé sont exécutées dans une atmosphère inerte ou dans une atmosphère de gaz protecteur.
  5. Installation pour l'exécution du procédé de fabrication de panneaux en tôle à partir de profilés extrudés selon la revendication 1
    qui se caractérise par le fait que
    l'installation est constituée d'une presse à filer (1) dotée d'une matrice qui crée le profilé filé et une unité de formage (5) en aval de la matrice et où l'unité de formage (5) comporte un dispositif de séparation (2) pour la découpe du profilé filé en fonction de la longueur du panneau en tôle à obtenir, d'une unité de pliage (3) pour déplier le profilé en U afin de former le panneau en tôle et un enrouleur (4) à dispositifs de préhension mobiles pour obtenir le panneau en tôle par enroulement du profilé en U et par étirage.
  6. Installation selon la revendication 5
    qui se caractérise par le fait que
    l'enrouleur (4) est constitué de deux dispositifs de préhension mobiles.
  7. Installation selon la revendication 5
    qui se caractérise par le fait que
    l'enrouleur (4) est constitué d'un dispositif de préhension fixe et d'un dispositif de préhension mobile.
  8. Installation selon la revendication 5
    qui se caractérise par le fait que
    l'enrouleur (4) est constitué de deux cylindres mobiles qui passent au-dessus et en-dessous du profilé en U et qui tournent chacun dans la direction des bords longitudinaux en s'éloignant l'un de l'autre.
EP14734379.2A 2013-05-18 2014-05-13 Procédé et dispositif de fabrication de tôles en magnésium ou alliage de magnésium Active EP2996825B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102013008635.3A DE102013008635B3 (de) 2013-05-18 2013-05-18 Verfahren und Anlage zur Herstellung von Blechtafeln

Publications (2)

Publication Number Publication Date
EP2996825A1 EP2996825A1 (fr) 2016-03-23
EP2996825B1 true EP2996825B1 (fr) 2016-12-28

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP14734379.2A Active EP2996825B1 (fr) 2013-05-18 2014-05-13 Procédé et dispositif de fabrication de tôles en magnésium ou alliage de magnésium

Country Status (10)

Country Link
US (1) US9849505B2 (fr)
EP (1) EP2996825B1 (fr)
JP (1) JP6400679B2 (fr)
KR (1) KR102217880B1 (fr)
CN (1) CN105228764B (fr)
CA (1) CA2912867C (fr)
DE (2) DE102013008635B3 (fr)
ES (1) ES2629487T3 (fr)
PL (1) PL2996825T3 (fr)
WO (1) WO2014187442A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102018004387A1 (de) 2018-06-01 2019-12-05 Ulrich Bruhnke Anlage zur Herstellung von Blechtafeln oder Hohlkammerplatten aus Strangpressprofilen

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* Cited by examiner, † Cited by third party
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CA2912867A1 (fr) 2014-11-27
KR20160010591A (ko) 2016-01-27
US9849505B2 (en) 2017-12-26
EP2996825A1 (fr) 2016-03-23
ES2629487T3 (es) 2017-08-10
KR102217880B1 (ko) 2021-02-22
CA2912867C (fr) 2018-05-22
WO2014187442A1 (fr) 2014-11-27
CN105228764B (zh) 2018-04-06
DE102013008635B3 (de) 2014-06-26
JP2016524538A (ja) 2016-08-18
JP6400679B2 (ja) 2018-10-10
US20160096221A1 (en) 2016-04-07
PL2996825T3 (pl) 2017-09-29
DE112014002474A5 (de) 2016-02-25

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