EP1339510B1 - Procede de fabrication d'un contenant metallique apte a recevoir un constituant de chauffage ou de refroidissement - Google Patents

Procede de fabrication d'un contenant metallique apte a recevoir un constituant de chauffage ou de refroidissement Download PDF

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Publication number
EP1339510B1
EP1339510B1 EP01999446A EP01999446A EP1339510B1 EP 1339510 B1 EP1339510 B1 EP 1339510B1 EP 01999446 A EP01999446 A EP 01999446A EP 01999446 A EP01999446 A EP 01999446A EP 1339510 B1 EP1339510 B1 EP 1339510B1
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EP
European Patent Office
Prior art keywords
cup
max
metal container
die
container
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.)
Expired - Lifetime
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EP01999446A
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German (de)
English (en)
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EP1339510A1 (fr
Inventor
David Neil Bowen
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Corus UK Ltd
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Corus UK Ltd
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D22/00—Shaping without cutting, by stamping, spinning, or deep-drawing
    • B21D22/20—Deep-drawing
    • B21D22/24—Deep-drawing involving two drawing operations having effects in opposite directions with respect to the blank
    • 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
    • B21D22/00—Shaping without cutting, by stamping, spinning, or deep-drawing
    • B21D22/20—Deep-drawing
    • B21D22/30—Deep-drawing to finish articles formed by deep-drawing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D1/00—Containers having bodies formed in one piece, e.g. by casting metallic material, by moulding plastics, by blowing vitreous material, by throwing ceramic material, by moulding pulped fibrous material, by deep-drawing operations performed on sheet material
    • B65D1/12—Cans, casks, barrels, or drums
    • B65D1/14—Cans, casks, barrels, or drums characterised by shape
    • B65D1/16—Cans, casks, barrels, or drums characterised by shape of curved cross-section, e.g. cylindrical
    • B65D1/165—Cylindrical cans
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D81/00—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents
    • B65D81/34—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents for packaging foodstuffs or other articles intended to be cooked or heated within the package
    • B65D81/3484—Packages having self-contained heating means, e.g. heating generated by the reaction of two chemicals

Definitions

  • the invention relates to a method of producing a metal container.
  • a metal container produced by the method comprises a plurality of internal chambers of various depths and diameters, the design of which can be varied dependent on the respective application.
  • the internal chamber or chambers may be filled with appropriate substances and used to heat or cool via a chemical reaction the contents of another chamber.
  • the container can thus be used to accommodate a heating or cooling component to heat or cool the contents, although it could also be used for alternative applications, e.g. where food products need to be kept separate.
  • This invention relates to a method of manufacture incorporating a combination of internal chambers, suitable to accommodate a hearing or cooling component, used for heating or cooling its contents.
  • the method of manufacture used in producing the metal container may involve a combination or a series of the following processes, cupping, draw redraw (DRD) and/or draw stretch redraw (DSRD), reverse (partial) redraw, redraw of the reverse chamber and base reform depending on application and container size. Examples of such methods are disclosed in US-A-5088870 and WO 99/61326.
  • the process developed is as follows: The original cup is redrawn in sequential stages until a container of correct diameter is produced. The container is then subjected to a reverse (partial) redraw in order to insert an internal chamber. The next stage involves redraw of the internal chamber, hence producing two internal chambers of different diameter and depth. The final chamber is produced by means of base reform which produces a container of correct external diameter and height and, hence, a finished container of correct internal chamber diameters and depths.
  • the configuration of internal chambers of the metal container consists of three internal chambers, with the following typical dimensions: 61.6 mm diameter at 4 mm deep, 53.7 mm diameter at 15 mm deep and 45 mm diameter at 73 mm deep.
  • the starting material is conventionally a double reduced product of high strength high ductility low carbon steel with a proof strength of 480 - 720 N/mm 2 , and coated with a polymer coated film on one or each surface.
  • the use of DR products for the metal container is not exclusive to the design, as it is possible that a range of SR tin mill products can be used for the application.
  • This invention concerns a method of producing a typical metal container used to accommodate a heating or cooling component, used in the heating or cooling of the contents of the metal container.
  • the feed stock for the method of manufacture for the metal containers to be produced in accordance with the invention is a double reduced high strength high ductility low carbon steel with a proof strength of 480 - 720 N/mm 2 .
  • the maximum carbon level for the steel is typically 0,05 % by weight.
  • a typical specification for this steel is by weight %: C 0.01 - 0.04; S 0.02 max. ; P 0.015 max.; Mn 0.15 - 0.30; Ni 0. 04 max. ; Cu 0.06 max. ; Sn 0.02 max. ; As 0.01 max.; Mo 0.01 max.; Cr 0.06 max.; Al 0.02 - 0.09 and N 0.003 max..
  • the steel is reduced by hot or cold rolling to a gauge typically of between 0.12 mm and 0.30 mm and is processed by known appropriate heating cycles and continuous annealing.
  • the steel has a minimum earing quality.
  • the feed stock used is DR 580 CA 0.24 mm, coated with a PET laminate coating of 0.025 mm (white) on one side and a PET laminate coating of 0.020 mm (clear) on the other.
  • the specification for this steel is by weight % : C 0.012 - 0.04; S 0.02 max.; P 0.015 max.; Mn 0.15 - 0.30; Al 0. 025 - 0.055 and N 0.003 max., plus trace elements: Ni 0.04 max.; Cu 0.06 max.; Sn 0.02 max.; As 0.01 max.; Mo 0.01 max.; Cr 0.06 max..
  • Strip produced from the feed stock is subjected to an electrolytic coating process.
  • the steel strip is cleaned and pickled before being passed through a plating bath in which it is coated with a thin layer of chromium metal, typically of 0.010 mm thickness followed by a thin layer of chromium oxide, again typically of 0.010 mm thickness.
  • a plating bath in which it is coated with a thin layer of chromium metal, typically of 0.010 mm thickness followed by a thin layer of chromium oxide, again typically of 0.010 mm thickness.
  • tinplate or other suitable substrate could be employed.
  • the strip is then coated with a polymer material.
  • a layer of PET (polyethylene terephthalate) and/or PP (polypropylene) is bonded to the surface of the metallic coated steel strip or sheet using heat and pressure.
  • the films are co-extruded so that the bonding layer of 0.002 mm first makes contact with the steel and forms a strong bond. After the bond is formed with the substrate the polymer films are melted and held above the recrystallisation temperatures for a few seconds before being rapidly quenched to below their softening temperatures.
  • the method of coating the strip can be a direct extrusion or laminating process.
  • the thickness of the external polymer is in the order of 0.025 mm thickness and the internal polymer is between 0.015 and 0.030 mm. Laminating processes and polymer films of a different structure and composition other than those discussed may be employed.
  • the strip either in sheet or coil form is fed to a cupper in a pre-waxed condition or is passed through a waxer on entry to the cupping system.
  • the wax may be edible and petroleum based with film weights in the range 5 - 20 mg/ft 2 .
  • Discs are stamped from the sheet or strip.
  • the cup is drawn in one operation using a die with a diameter typically in the range 150 mm to 300 mm.
  • the draw ratio i.e. ratio of the diameter of the disc to that of the cup
  • the geometry of the tooling is designed in combination with the correct blank holding load to give a reduction in wall thickness at the cupping stage of up to 20 %, however this can be produced with a smaller or greater reduction depending on application.
  • the blank holding load is achieved by use of a boosted air pressure of up to 200 psi fed into a series (typically three) of internal multiplying pistons.
  • the punch / die gap is important and is controlled by the feed stock gauge and coating and gaps of 1.20 - 2.50 times the starting total laminate thickness are typically used.
  • punch nose radius is carefully controlled to achieve the required draw / stretch whilst minimising subsequent can wall marking which could lead to laminate rupture.
  • Punch nose radii in the range of 0.5 mm to 10 mm are generally required.
  • the cupper cup is passed into the draw / stretch redraw press which contains tooling for both first and second redraw operations.
  • the diameter of the cup is reduced in the first redraw operation with a draw ratio in the range 1.0 - 1.7 : 1, and with a wall thickness reduction typically 25 % of the in going cup wall thickness, however this can be produced with a smaller or greater reduction (in the range of 10 - 60 %) depending on application.
  • the wall thickness reduction is achieved by a stretching technique.
  • the wall thickness reduction is balanced with the draw ratio and is achieved by use of pressure sleeve and die geometry in combination with controlled blank holding loads.
  • the tooling geometry typically is as follows: pressure sleeve diameter up to 0.66 mm smaller than the cupper cup internal diameter; pressure sleeve radius up to 2.0 mm; die radius up to 2 mm with a parallel land length up to 5 mm.
  • the blank holding load is achieved by use of air pressure of up to 100 psi fed into a stack of two or more internal multiplying pistons.
  • Location of the cup on the die is effected by means of a nest recess with a diameter matched to the cupper cup, allowing for the thickness of the actual laminate.
  • the radius of the nest diameter with the die at the base of the nest is in the range 0.10 - 2.00 mm.
  • the punch is parallel along its length and the gap between the punch diameter and die (per side) is generally controlled to between 1.20 and 1.50 times the starting laminate thickness.
  • the punch radius is important to achieve the required stretch whilst minimising subsequent en wall marking which could lead to laminate rupture.
  • Punch nose radii in the range 1 mm to 3 mm are typically used.
  • the first redraw cup is passed back into the stretch redraw press a station containing the second redraw tooling.
  • the cup diameter is reduced in this operation to the final metal container diameter, typically 211, however, may vary depending on application.
  • the draw ratio is generally in the range 1.0 - 1.7 : 1, and with a wall thickness reduction typically 25 % of the ingoing cup wall thickness, however this can be produced with a smaller or greater reduction (in the range 10 - 60 %) depending on application.
  • the wall thickness reduction is again achieved by a stretching technique using a combination of pressure sleeve and die geometry with controlled blank holding loads.
  • the correct choice of diameter reduction ratio to achieve the finished can is also important in enabling the stretch process to be successful.
  • the tooling geometry used typically is as follows: pressure sleeve diameter up to 0.30 mm smaller than the first redraw cup internal diameter; pressure sleeve radius up to 2.0 mm; die radius up to 2 mm with a parallel land length up to 5 mm.
  • the blank holding load is achieved by use of air pressure of up to 100 psi fed into a stack of two or more internal multiplying pistons.
  • Location of the cup on the die is effected by means of a nest recess with a diameter matched to the cupper cup, allowing for the thickness of the actual laminate.
  • the radius of the nest diameter with the die at the base of the nest is in the range 0.10 - 2.00 mm.
  • the punch is parallel along its length and the gap between the punch diameter and die (per side) is generally controlled to between 1.00 and 1.20 times the starting laminate thickness.
  • the punch radius is important to achieve the required stretch whilst minimising subsequent can wall marking which could lead to laminate rupture.
  • Punch nose radii in the range 1 mm to 3 mm are typically used.
  • Gap control or arrested draw is employed at the redraw stages to eliminate high spot clip off or the generation of laminate "whiskers".
  • gaps of 0.10 to 0.15 mm between the pressure sleeve and die face are generally used depending upon the laminate feed stock used.
  • the overall metal container wall thinning employed is 5 - 40 % dependent upon the end use of the container.
  • the second redraw container (i.e. final container diameter) is transferred to a different redraw press, which can accommodate tooling for the reverse draw for the internal chamber, redraw of the reverse chamber and base reform operations.
  • the container undergoes a reverse draw operation, in order to produce an initial internal chamber.
  • the draw ratio for the initial internal chamber is generally in the range 1.0 - 1.7 : 1, with no (or limited) wall thickness reduction instead the internal depth is achieved by a reduction of the in going second redraw container height.
  • punch radius and controlled blank holding pressure are required.
  • the tooling geometry typically is as follows: die external diameter up to 0.60 mm smaller than the second redraw can internal diameter; die external radius up to 2.0 mm; die radius up to 5 mm with a parallel land length up to 5 mm.
  • the blank holding load is achieved by use of air pressure of up to 100 psi fed into a stack of two or more flexible pressure chambers.
  • Location of the container on the pressure sleeve is effected by means of a nest recess with a diameter matched to the second redraw can, allowing for the thickness of the actual laminate.
  • the radius of the nest diameter with the die at the base of the nest is in the range 0.10 - 2.00 mm.
  • the punch is parallel along its length and the gap between the punch diameter and die (per side) is generally controlled to between 1.10 and 1.40 times the starting laminate thickness.
  • the punch radius is important to prevent 1 limit wall thickness reduction, instead it is used to draw the container wall to produce the internal chamber.
  • the punch nose radius in the range 2 mm to 7.5 mm is typically used, Depth of the reverse draw is controlled out by the means of a mechanical stop. The depth of the reverse draw is dependent on the application, typically between 10 - 100 mm.
  • the reverse redraw container is transferred to the next operation station, where redraw of the reverse chamber is performed.
  • the container's internal chamber is redrawn to a smaller diameter for a portion of it's depth, i.e. two different chamber diameters and depths.
  • the draw ratio used in the reduction of the internal chamber is generally in the range 1,0 - 1.7 : 1.
  • the increase in height of the internal chambers is caused by a reduction of the reverse redrawn can base diameter and base thickness reduction.
  • Base thickness reduction is again achieved by a stretching technique using a combination of pressure sleeve, punch and die geometry with controlled blank holding loads.
  • the correct choice of internal diameter reduction ratio to achieve the required internal parameters is important in enabling the process to be successful.
  • the tooling geometry used typically is as follows: die external diameter up to 0.60 mm smaller than the second redraw can internal diameter; die radius up to 5 mm with a parallel land length up to 5 mm.
  • the blank holding load is achieved by use of air pressure of up to 100 psi fed into a stack of two or more flexible pressure chambers.
  • Location of the container on the pressure sleeve is controlled by means of the internal chamber from the reverse redraw operation with a diameter 0.60 mm smaller than the internal chamber for can location, allowing for the thickness of the laminate to be taken into account.
  • the punch is parallel along its length and the gap between the punch diameter and die (per side) is generally controlled to between 1.10 and 1.40 times the starting laminate thickness.
  • the punch radius is important to achieve the required stretch.
  • the punch nose radii in the range 2 mm to 7.5 mm is typically used.
  • Depth of the redraw is controlled by the means of a mechanical stop.
  • the depth of the redraw operation is dependent on the application, typically between 10 - 100 mm.
  • the redraw container is transferred to the final operation station for this application, where base reform is performed.
  • the final internal chamber is reformed to the largest diameter chamber for a specified depth (i.e. three different chamber diameters and depths).
  • the draw ratio used in the reduction of the internal chamber is generally in the range of 1.0 - 1.4 : 1; with no wall thickness reduction, instead the internal depth for this final chamber is achieved by a reduction from the ingoing second redraw container height.
  • the tooling geometry typically is as follows: punch external diameter up to 0.60 mm smaller than the second redraw can internal diameter; punch external radius up to 2.0 mm; punch internal radius up to 2.0 mm; die radius up to 2.0 mm with a parallel and length up to application requirement;
  • the base reform load is applied by the reaction between the punch and die that is used to apply the base design.
  • Location of the container on the die is effected by means of a nest recess with a diameter matched to the second redraw container, allowing for the thickness of the actual laminate.
  • the radius of the nest diameter with the die at the base of the nest is perpendicular.
  • Depth of the redraw is controlled by the means of a mechanical stop.
  • the punch bottoms out on the die face at the specified depth for the application requirements.
  • the container is trimmed (this can occur after the second redraw operation) and passed through an oven.
  • This oven is typically held at 200 - 230' C and the pass time is typically between 1 and 3 minutes. This facilitates the removal of petroleum wax lubricant to such a level so that it does not interfere with the lay down of printing inks used to decorate the can. It also raises the surface energy of the PET coating to at least 38 dynes/cm, which increases the wettability of the PET surface to printing inks.
  • the temperature cycle in the oven is chosen to minimise recrystallisation of the PET by rapid temperature rise and cooling cycles.
  • FIG. 1 shows five stages of a cupping operation of the method of the present invention.
  • the five stages are labelled A to E.
  • Stage 1A shows a feed stock strip 1 of laminated steel strip held between a draw pad 2 and a blank and draw die 3.
  • a disc of the required diameter is cut from the strip, by downward movement of a cutter 5 (see figure IB).
  • a punch 6 (figures IC and ID) is then moved downwardly with the disc edges trapped between the opposed surfaces of the draw pad 2 and draw die 3.
  • a cup 7 is thereby formed which is removed from the die by air pressure (see figure 1E).
  • the cup is then placed on a die for first redraw purposes.
  • This stage is illustrated in figure 2A.
  • the die is formed with a shaped lip 9 and has a curved annular projection 10 protruding inwardly from its upper surface.
  • a pressure sleeve 11 and punch move downwardly and within the side wall of the cup 7.
  • the outer rim of the cup base seats between the opposed surfaces of the pressure sleeve 11 and the die 8.
  • the gap between these members is sufficient only to restrict movement of the cup 7, not to impose a force sufficient to deform or iron the cup.
  • the punch is moved downwardly, so the cup wall is stretched to increase the cup height.
  • the second redraw operation uses the same or similar pressure sleeve and die as those used in the first redraw operation. These have been accordingly been given the same numerical reference.
  • the cup 7 is again shown in positioned on the die 8, see figure 3A.
  • the pressure sleeve 11 is moved downwardly as shown in figure 3B to position the sleeve within the cup 7. Again, the spacing between the sleeve 11 and the die 8 is to restrict movement of the cup, not to preclude such movement.
  • a punch 14 is moved downwardly into engagement with the cup base to once again stretch the cup side wall and effect elongation thereof This stretching operation being as described above in relation to figure 2. This stretching operation is shown in figures 3C and 3D.
  • the fully stretched and formed cup is ejected by air pressure (see figure 3E).
  • Figure 4 concerning the reverse redraw operation illustrates how the initial internal chamber is applied.
  • Cup 7 is placed on the pressure sleeve 15 for the reverse redraw for the initial internal chamber.
  • This stage is illustrated in figure 4A.
  • the die 14 moves downwardly and locates in the cup 7.
  • the die 14 continues its downward movement and clamps the cup 7 between itself and the pressure sleeve 15, see figure 4C.
  • the die 14 continues the downward motion, and in doing so, forces the pressure sleeve 15 to move in the same direction, hence, causing the cup 7 to be drawn over the fixed punch 16, resulting a reduction in the height of the second redraw cup (i.e. material is not thinned, but moved to new position, due to minimal blank holding pressure to be applied).
  • the depth of the internal chamber is controlled by a mechanic stop at a described displacement. This operation applies the initial internal chamber, see figure 4D.
  • the die 14 begins its upward motion as illustrated in figure 4E.
  • the cup 7 is ejected by air pressure, see figure 4F.
  • FIG 5 the redraw of the initial internal chamber is illustrated, which produces two internal chambers of different diameters and depths.
  • Cup 7 is placed on the pressure sleeve 18 for the redraw of the initial internal chamber.
  • This stage is illustrated in figure 5A.
  • the die 17 moves downwardly and locates in the cup 7.
  • the die 17 continues it downward movement and clamps the cup 7 between itself and the pressure sleeve 18, see figure 5C.
  • the die 17 continues the downward motion, and in doing so, forces the pressure sleeve 17 to move in the same direction, hence, causing the cup 7 to be drawn over the fixed punch 19.
  • the cup base is reduced in diameter, producing two internal chambers of different diameters and depths, see figure 5D.
  • the depth of the internal chamber is controlled by a mechanic stop at a described displacement.
  • the die 17 begins its upward motion as illustrated in figure 5E. After the reverse redraw operation the cup 7 is ejected by air pressure, see figure 5F.
  • FIG 6 describes the process of base reform, this is whereby the final internal chamber (for this application) is applied to the can.
  • the cup is located in the die 21 for the base reform operation to occur see figure 6A.
  • the punch 20 moves downwardly and locates in the cup 7.
  • the punch 20 continues it downward movement into engagement between the cup 7, itself and the die 21.
  • This base reform operation is shown in figure 6C and 6D.
  • the punch 20 begins its upward motion, and the fully formed cup 7 is ejected by air pressure, see figure 6E.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Food Science & Technology (AREA)
  • Ceramic Engineering (AREA)
  • Shaping Metal By Deep-Drawing, Or The Like (AREA)
  • Mounting, Exchange, And Manufacturing Of Dies (AREA)
  • Heat Treatments In General, Especially Conveying And Cooling (AREA)

Claims (7)

  1. Procédé de production d'un récipient métallique à partir d'une tôle ou d'un ruban d'acier à basse teneur en carbone, revêtu(e), sur au moins l'une de ses faces, d'une couche cohérente de revêtement faite d'un matériau polymère thermoplastique, dans lequel procédé l'on soumet à une opération d'emboutissage un flan produit à partir de la tôle ou du ruban d'acier revêtu(e), pour en faire une coupelle, et lequel procédé est caractérisé en ce qu'il comporte les étapes suivantes :
    i) faire subir à la coupelle au moins une opération d'emboutissage et d'étirage, afin de réduire l'épaisseur de la paroi de la coupelle et d'augmenter la hauteur de la coupelle sans étendre la surface de la paroi ;
    ii) faire subir à la coupelle étirée au moins une opération de ré-emboutissage inverse partiel, afin de ménager, à l'intérieur de la coupelle étirée, une première chambre interne dont la profondeur résulte de la réduction de sa hauteur, sans qu'il y ait réduction de l'épaisseur de la paroi ;
    iii) faire subir à la première chambre interne une opération de ré-emboutissage inverse, afin de ménager une deuxième chambre interne dont le diamètre et la profondeur sont différents de ceux de la première chambre interne ;
    iv) et faire subir au fond de la coupelle une opération de refaçonnage, afin de ménager une troisième chambre interne dont le diamètre et la profondeur sont différents de ceux des première et deuxième chambres internes et dont la profondeur résulte d'une réduction dans la coupelle.
  2. Procédé conforme à la revendication 1, caractérisé en ce que le revêtement de polymère thermoplastique comprend un revêtement intérieur qui empêche une corrosion du récipient par son contenu, ainsi qu'un revêtement extérieur qui empêche une corrosion du récipient par une solution servant à le refroidir ou à le réchauffer, ces couches de revêtement ayant été appliquées sur la surface métallique par extrusion directe ou stratification.
  3. Procédé, conforme à la revendication 1 ou 2, de production d'un récipient métallique présentant une combinaison de chambres internes de profondeurs et diamètres différents.
  4. Procédé, conforme à l'une des revendications 1 à 3, de production d'un récipient métallique à partir d'une tôle ou d'un ruban d'acier à basse teneur en carbone, haute résistance et haute ductilité, deux fois laminé(e), dont la limite élastique vaut de 490 à 720 N/mm2.
  5. Procédé, conforme à la revendication 3 ou 4, de production d'un récipient métallique, dans lequel la teneur en carbone de l'acier vaut au plus 0,050 % en poids.
  6. Procédé, conforme à la revendication 4 ou 5, de production d'un récipient métallique, dans lequel l'acier contient, en pourcentages pondéraux, de 0,01 à 0,10 % de carbone, au plus 0,02 % de soufre, au plus 0,015 % de phosphore, de 0,15 à 0,30 % de manganèse, au plus 0,04 % de nickel, au plus 0,06 % de cuivre, au plus 0,02 % d'étain, au plus 0,01 % d'arsenic, au plus 0,01 % de molybdène, au plus 0,06 % de chrome, de 0,02 à 0,09 % d'aluminium, et au plus 0,003 % d'azote.
  7. Procédé, conforme à l'une des revendications 4 à 6, de production d'un récipient métallique, dans lequel la tôle ou le ruban d'acier a subi une réduction de son épaisseur, par laminage à chaud ou à froid, jusqu'à une valeur de 0,12 à 0,3 mm.
EP01999446A 2000-12-04 2001-11-26 Procede de fabrication d'un contenant metallique apte a recevoir un constituant de chauffage ou de refroidissement Expired - Lifetime EP1339510B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
GB0029459 2000-12-04
GBGB0029459.5A GB0029459D0 (en) 2000-12-04 2000-12-04 Metal container suitable to accommodate a heating or cooling component and method for manufacturing it
PCT/GB2001/005187 WO2002045882A1 (fr) 2000-12-04 2001-11-26 Contenant metallique conçu pour recevoir un constituant de chauffage ou de refroidissement et procede de fabrication de celui-ci

Publications (2)

Publication Number Publication Date
EP1339510A1 EP1339510A1 (fr) 2003-09-03
EP1339510B1 true EP1339510B1 (fr) 2006-03-15

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EP01999446A Expired - Lifetime EP1339510B1 (fr) 2000-12-04 2001-11-26 Procede de fabrication d'un contenant metallique apte a recevoir un constituant de chauffage ou de refroidissement

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US (1) US20070175258A1 (fr)
EP (1) EP1339510B1 (fr)
AU (1) AU2002223087A1 (fr)
DE (1) DE60118041T2 (fr)
GB (1) GB0029459D0 (fr)
WO (1) WO2002045882A1 (fr)
ZA (1) ZA200304010B (fr)

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CA2843795C (fr) 2011-08-01 2019-08-20 Crown Packaging Technology, Inc. Fabrication de boite
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US20070175258A1 (en) 2007-08-02
EP1339510A1 (fr) 2003-09-03
AU2002223087A1 (en) 2002-06-18
DE60118041T2 (de) 2006-09-28
WO2002045882A1 (fr) 2002-06-13
DE60118041D1 (de) 2006-05-11
ZA200304010B (en) 2004-04-08
GB0029459D0 (en) 2001-01-17

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