US20070175258A1 - Metal container suitable to accommodate a heating or cooling component method and for manufacturing it - Google Patents
Metal container suitable to accommodate a heating or cooling component method and for manufacturing it Download PDFInfo
- Publication number
- US20070175258A1 US20070175258A1 US10/433,465 US43346501A US2007175258A1 US 20070175258 A1 US20070175258 A1 US 20070175258A1 US 43346501 A US43346501 A US 43346501A US 2007175258 A1 US2007175258 A1 US 2007175258A1
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- United States
- Prior art keywords
- cup
- max
- metal container
- container
- diameter
- Prior art date
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- Abandoned
Links
- 238000000034 method Methods 0.000 title claims abstract description 32
- 239000002184 metal Substances 0.000 title claims abstract description 20
- 229910052751 metal Inorganic materials 0.000 title claims abstract description 20
- 238000001816 cooling Methods 0.000 title claims description 8
- 238000010438 heat treatment Methods 0.000 title claims description 8
- 238000004519 manufacturing process Methods 0.000 title description 5
- 238000000576 coating method Methods 0.000 claims abstract description 11
- 239000011248 coating agent Substances 0.000 claims abstract description 10
- 229910001209 Low-carbon steel Inorganic materials 0.000 claims abstract description 5
- 239000002861 polymer material Substances 0.000 claims abstract description 3
- 229920001169 thermoplastic Polymers 0.000 claims abstract 3
- 230000001427 coherent effect Effects 0.000 claims abstract 2
- 238000002407 reforming Methods 0.000 claims abstract 2
- 229910000831 Steel Inorganic materials 0.000 claims description 12
- 239000010959 steel Substances 0.000 claims description 12
- 238000005260 corrosion Methods 0.000 claims description 3
- 230000007797 corrosion Effects 0.000 claims description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 2
- 229910052799 carbon Inorganic materials 0.000 claims description 2
- 238000005097 cold rolling Methods 0.000 claims description 2
- 238000001125 extrusion Methods 0.000 claims description 2
- 238000005098 hot rolling Methods 0.000 claims description 2
- 238000010409 ironing Methods 0.000 claims 1
- 238000003475 lamination Methods 0.000 claims 1
- 239000004416 thermosoftening plastic Substances 0.000 claims 1
- 230000003247 decreasing effect Effects 0.000 abstract 1
- 229920000139 polyethylene terephthalate Polymers 0.000 description 9
- 239000005020 polyethylene terephthalate Substances 0.000 description 9
- 230000001419 dependent effect Effects 0.000 description 5
- 239000004743 Polypropylene Substances 0.000 description 3
- 239000000976 ink Substances 0.000 description 3
- 229920000642 polymer Polymers 0.000 description 3
- 238000001953 recrystallisation Methods 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 239000011651 chromium Substances 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 238000010030 laminating Methods 0.000 description 2
- -1 polyethylene terephthalate Polymers 0.000 description 2
- 229920006254 polymer film Polymers 0.000 description 2
- 238000004826 seaming Methods 0.000 description 2
- 239000000758 substrate Substances 0.000 description 2
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 1
- 229910000576 Laminated steel Inorganic materials 0.000 description 1
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 1
- WGLPBDUCMAPZCE-UHFFFAOYSA-N Trioxochromium Chemical compound O=[Cr](=O)=O WGLPBDUCMAPZCE-UHFFFAOYSA-N 0.000 description 1
- 238000000137 annealing Methods 0.000 description 1
- 229910000423 chromium oxide Inorganic materials 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 235000013305 food Nutrition 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 239000000314 lubricant Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 239000012169 petroleum derived wax Substances 0.000 description 1
- 235000019381 petroleum wax Nutrition 0.000 description 1
- 238000007747 plating Methods 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 239000007858 starting material Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000005028 tinplate Substances 0.000 description 1
- 239000011573 trace mineral Substances 0.000 description 1
- 235000013619 trace mineral Nutrition 0.000 description 1
- 239000001993 wax Substances 0.000 description 1
Images
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—Rigid or semi-rigid 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 or 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 metal container and its manufacture.
- the metal container 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 according to the invention 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 also relates to a method of manufacturing such a metal container, incorporating a combination of internal chambers, suitable to accommodate a heating 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 U.S. Pat. No. 5,088,870 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.; A 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 marling 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 land 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 illustrates five stages of a cupping operation of the method of the present invention
- FIG. 2 illustrates five stages of a first draw 1 stretch redraw operation of the method of the present invention
- FIG. 3 illustrates five stages of a second draw/stretch redraw operation of the method of the present invention
- FIG. 4 illustrates six stages of a reverse redraw operation of the method of the present invention
- FIG. 5 illustrates six stages of a redraw operation of the method of the present invention
- FIG. 6 illustrates five stages of a base reform operation of the method of the present invention
- 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 1 A 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 FIG. 1B ).
- a punch 6 FIGS. 1C and 1D ) 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 FIG. 1E ).
- the cup is then placed on a die for first redraw purposes.
- This stage is illustrated in FIG. 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 FIG. 3A .
- the pressure sleeve 11 is moved downwardly as shown in FIG. 3B to position the sleeve within the cup 7 .
- 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 FIG. 2 .
- This stretching operation is shown in FIGS. 3C and 3D .
- the fully stretched and formed cup is ejected by air pressure (see FIG. 3E ).
- FIG. 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 FIG. 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 FIG. 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.
- the depth of the internal chamber is controlled by a mechanic stop at a described displacement. This operation applies the initial internal chamber, see FIG. 4D .
- the die 14 begins its upward motion as illustrated in FIG. 4E . After the reverse redraw operation the cup 7 is ejected by air pressure, see FIG. 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.
- FIG. 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 FIG. 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 FIG. 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 FIG. 5E .
- the cup 7 is ejected by air pressure, see FIG. 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 FIG. 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 FIGS. 6C and 6D .
- the punch 20 begins its upward motion, and the fully formed cup 7 is ejected by air pressure, see FIG. 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)
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB0029459.5 | 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 (1)
| Publication Number | Publication Date |
|---|---|
| US20070175258A1 true US20070175258A1 (en) | 2007-08-02 |
Family
ID=9904341
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US10/433,465 Abandoned US20070175258A1 (en) | 2000-12-04 | 2001-11-26 | Metal container suitable to accommodate a heating or cooling component method and for manufacturing it |
Country Status (7)
| Country | Link |
|---|---|
| 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) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20100064759A1 (en) * | 2008-09-18 | 2010-03-18 | Benteler Automobiltechnik Gmbh | Method and device for press-hardening a metallic formed structure |
| US20100071434A1 (en) * | 2006-10-31 | 2010-03-25 | JTE Steel Corporation | Press forming method for metal sheet and frame part for automotive body manufactured thereby |
| CN103702780A (zh) * | 2011-08-01 | 2014-04-02 | 皇冠包装技术公司 | 罐的制造 |
| CN105377465A (zh) * | 2013-04-12 | 2016-03-02 | 皇冠包装技术公司 | 用于制造罐盖的方法和设备 |
| WO2019226282A1 (fr) * | 2018-05-23 | 2019-11-28 | Pride Engineering, Llc | Bloc outil refroidi par fluide |
| US20220402656A1 (en) * | 2020-05-07 | 2022-12-22 | Toyo Seikan Co., Ltd. | Can container |
| US20230095220A1 (en) * | 2021-09-30 | 2023-03-30 | Novelis Inc. | Systems and methods for forming a double dome container |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10351400B4 (de) * | 2003-11-04 | 2005-10-06 | Umformtechnik Alfred Burggraf Gmbh | Schüttgutsortierer |
| US8313003B2 (en) | 2010-02-04 | 2012-11-20 | Crown Packaging Technology, Inc. | Can manufacture |
| PH12012501527A1 (en) | 2010-02-04 | 2017-08-09 | Crown Packaging Technology Inc | Can manufacture |
| EP2353746A1 (fr) * | 2010-02-04 | 2011-08-10 | Crown Packaging Technology, Inc. | Fabrication de boîtes |
| AU2011240029B2 (en) | 2010-04-12 | 2016-07-07 | Crown Packaging Technology, Inc. | Can manufacture |
| DE102015101715B4 (de) * | 2015-02-06 | 2016-10-06 | Schuler Pressen Gmbh | Verfahren und Umformvorrichtung zur Herstellung eines Hohlkörpers |
| DE102016116758A1 (de) * | 2016-09-07 | 2018-03-08 | Thyssenkrupp Ag | Verfahren und Vorrichtung zur Herstellung von geformten, insbesondere flanschbehafteten Blechbauteilen |
| DE102016118418A1 (de) | 2016-09-29 | 2018-03-29 | Thyssenkrupp Ag | Verfahren zur Herstellung eines geformten Bauteils mit einem maßhaltigen Zargenbereich |
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| US3802056A (en) * | 1970-01-07 | 1974-04-09 | Chandler Res Inst | Method of making self-refrigerating and heating food containers |
| US3998174A (en) * | 1975-08-07 | 1976-12-21 | National Steel Corporation | Light-weight, high-strength, drawn and ironed, flat rolled steel container body method of manufacture |
| US4808052A (en) * | 1986-07-28 | 1989-02-28 | Redicon Corporation | Method and apparatus for forming container end panels |
| US5088870A (en) * | 1987-08-27 | 1992-02-18 | Daiwa Can Company | Method for forming a two chambered can |
| US5343729A (en) * | 1985-03-15 | 1994-09-06 | Weirton Steel Corporation | Fabricating one-piece can bodies with controlled side wall elongation |
| US5899105A (en) * | 1995-03-21 | 1999-05-04 | Sollac | Process for manufacturing a shaped metal can |
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| GB9810952D0 (en) * | 1998-05-22 | 1998-07-22 | Searle Matthew | Improvements to self-heating and self cooling containers |
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- 2000-12-04 GB GBGB0029459.5A patent/GB0029459D0/en not_active Ceased
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2001
- 2001-11-26 US US10/433,465 patent/US20070175258A1/en not_active Abandoned
- 2001-11-26 EP EP01999446A patent/EP1339510B1/fr not_active Expired - Lifetime
- 2001-11-26 DE DE60118041T patent/DE60118041T2/de not_active Expired - Fee Related
- 2001-11-26 WO PCT/GB2001/005187 patent/WO2002045882A1/fr not_active Ceased
- 2001-11-26 AU AU2002223087A patent/AU2002223087A1/en not_active Abandoned
-
2003
- 2003-05-23 ZA ZA200304010A patent/ZA200304010B/en unknown
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3802056A (en) * | 1970-01-07 | 1974-04-09 | Chandler Res Inst | Method of making self-refrigerating and heating food containers |
| US3998174A (en) * | 1975-08-07 | 1976-12-21 | National Steel Corporation | Light-weight, high-strength, drawn and ironed, flat rolled steel container body method of manufacture |
| US5343729A (en) * | 1985-03-15 | 1994-09-06 | Weirton Steel Corporation | Fabricating one-piece can bodies with controlled side wall elongation |
| US4808052A (en) * | 1986-07-28 | 1989-02-28 | Redicon Corporation | Method and apparatus for forming container end panels |
| US5088870A (en) * | 1987-08-27 | 1992-02-18 | Daiwa Can Company | Method for forming a two chambered can |
| US5899105A (en) * | 1995-03-21 | 1999-05-04 | Sollac | Process for manufacturing a shaped metal can |
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20100071434A1 (en) * | 2006-10-31 | 2010-03-25 | JTE Steel Corporation | Press forming method for metal sheet and frame part for automotive body manufactured thereby |
| US8511129B2 (en) * | 2006-10-31 | 2013-08-20 | Jfe Steel Corporation | Press forming method for metal sheet and frame part for automotive body manufactured thereby |
| US20100064759A1 (en) * | 2008-09-18 | 2010-03-18 | Benteler Automobiltechnik Gmbh | Method and device for press-hardening a metallic formed structure |
| US8839652B2 (en) * | 2008-09-18 | 2014-09-23 | Benteler Automobiltechnik Gmbh | Method and device for press-hardening a metallic formed structure |
| CN103702780A (zh) * | 2011-08-01 | 2014-04-02 | 皇冠包装技术公司 | 罐的制造 |
| CN103702780B (zh) * | 2011-08-01 | 2016-05-11 | 皇冠包装技术公司 | 罐的制造 |
| US9849500B2 (en) | 2011-08-01 | 2017-12-26 | Crown Packaging Technology, Inc. | Can manufacture |
| CN105377465A (zh) * | 2013-04-12 | 2016-03-02 | 皇冠包装技术公司 | 用于制造罐盖的方法和设备 |
| WO2019226282A1 (fr) * | 2018-05-23 | 2019-11-28 | Pride Engineering, Llc | Bloc outil refroidi par fluide |
| US11045857B2 (en) | 2018-05-23 | 2021-06-29 | Pride Engineering, Llc | Fluid-cooled ToolPack |
| US20220402656A1 (en) * | 2020-05-07 | 2022-12-22 | Toyo Seikan Co., Ltd. | Can container |
| US20230095220A1 (en) * | 2021-09-30 | 2023-03-30 | Novelis Inc. | Systems and methods for forming a double dome container |
Also Published As
| Publication number | Publication date |
|---|---|
| AU2002223087A1 (en) | 2002-06-18 |
| EP1339510B1 (fr) | 2006-03-15 |
| EP1339510A1 (fr) | 2003-09-03 |
| ZA200304010B (en) | 2004-04-08 |
| WO2002045882A1 (fr) | 2002-06-13 |
| DE60118041D1 (de) | 2006-05-11 |
| GB0029459D0 (en) | 2001-01-17 |
| DE60118041T2 (de) | 2006-09-28 |
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| AS | Assignment |
Owner name: CORUS UK LIMITED, GREAT BRITAIN Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:BOWEN, DAVID N.;REEL/FRAME:014742/0652 Effective date: 20030722 |
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