WO2015075324A1 - Procédé de fabrication de capsules de bouchage métalliques brillantes - Google Patents
Procédé de fabrication de capsules de bouchage métalliques brillantes Download PDFInfo
- Publication number
- WO2015075324A1 WO2015075324A1 PCT/FR2014/000243 FR2014000243W WO2015075324A1 WO 2015075324 A1 WO2015075324 A1 WO 2015075324A1 FR 2014000243 W FR2014000243 W FR 2014000243W WO 2015075324 A1 WO2015075324 A1 WO 2015075324A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- capsule
- stamping
- typically
- metal
- blank
- Prior art date
Links
- 229910052751 metal Inorganic materials 0.000 title claims abstract description 41
- 239000002184 metal Substances 0.000 title claims abstract description 41
- 238000000034 method Methods 0.000 title claims abstract description 25
- 238000004519 manufacturing process Methods 0.000 title claims description 8
- 238000007789 sealing Methods 0.000 title abstract description 3
- 239000000314 lubricant Substances 0.000 claims abstract description 16
- 239000002966 varnish Substances 0.000 claims abstract description 15
- 238000005238 degreasing Methods 0.000 claims abstract description 5
- 238000005520 cutting process Methods 0.000 claims abstract description 4
- 239000002775 capsule Substances 0.000 claims description 70
- 229910000838 Al alloy Inorganic materials 0.000 claims description 10
- 238000010438 heat treatment Methods 0.000 claims description 4
- 239000004922 lacquer Substances 0.000 claims description 3
- 238000005034 decoration Methods 0.000 claims description 2
- 229910052782 aluminium Inorganic materials 0.000 abstract description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 abstract description 2
- 230000001681 protective effect Effects 0.000 abstract description 2
- 239000004411 aluminium Substances 0.000 abstract 1
- 238000012512 characterization method Methods 0.000 description 4
- 238000005096 rolling process Methods 0.000 description 4
- 239000011159 matrix material Substances 0.000 description 3
- 230000003287 optical effect Effects 0.000 description 3
- 229910045601 alloy Inorganic materials 0.000 description 2
- 239000000956 alloy Substances 0.000 description 2
- 235000013361 beverage Nutrition 0.000 description 2
- 210000001520 comb Anatomy 0.000 description 2
- 238000005461 lubrication Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000001465 metallisation Methods 0.000 description 2
- 238000004439 roughness measurement Methods 0.000 description 2
- 230000003746 surface roughness Effects 0.000 description 2
- 208000001613 Gambling Diseases 0.000 description 1
- 235000013334 alcoholic beverage Nutrition 0.000 description 1
- 229910002065 alloy metal Inorganic materials 0.000 description 1
- 239000010953 base metal Substances 0.000 description 1
- 239000002537 cosmetic Substances 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 239000000976 ink Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 238000007639 printing Methods 0.000 description 1
- 238000007650 screen-printing Methods 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 238000004513 sizing Methods 0.000 description 1
- 235000015096 spirit Nutrition 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000003760 tallow Substances 0.000 description 1
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
-
- 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
- B21D51/00—Making hollow objects
- B21D51/16—Making hollow objects characterised by the use of the objects
- B21D51/38—Making inlet or outlet arrangements of cans, tins, baths, bottles, or other vessels; Making can ends; Making closures
- B21D51/44—Making closures, e.g. caps
-
- 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
- B21D22/201—Work-pieces; preparation of the work-pieces, e.g. lubricating, coating
-
- 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
- B21D28/00—Shaping by press-cutting; Perforating
-
- 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
- B21D51/00—Making hollow objects
- B21D51/16—Making hollow objects characterised by the use of the objects
- B21D51/26—Making hollow objects characterised by the use of the objects cans or tins; Closing same in a permanent manner
-
- 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
- B65D41/00—Caps, e.g. crown caps or crown seals, i.e. members having parts arranged for engagement with the external periphery of a neck or wall defining a pouring opening or discharge aperture; Protective cap-like covers for closure members, e.g. decorative covers of metal foil or paper
- B65D41/02—Caps or cap-like covers without lines of weakness, tearing strips, tags, or like opening or removal devices
- B65D41/04—Threaded or like caps or cap-like covers secured by rotation
Definitions
- the invention relates to the field of closure caps comprising an outer metal shell of aluminum alloy and in particular screw caps which comprise an inner insert typically made of plastic and threaded.
- These capsules are intended for capping containers, mainly glass bottles containing alcoholic beverages and especially wine or spirits.
- the invention relates more particularly to a method of manufacturing these capsules to obtain a substantially uniform brightness on the top, or head, and on the "vertical" wall or skirt of the outside of the capsule.
- the aluminum alloy capping capsules are typically manufactured as follows:
- a stamping press forms blanks of capsules from a strip or sheet also called format, cut into blanks, varnished on both sides, with a typical thickness ranging from 0.15 to 0.25 mm without taking into account account varnish.
- a typical thickness ranging from 0.15 to 0.25 mm without taking into account account varnish.
- one to three stamping passes may be required.
- the brilliant appearance of the capsule is essentially given by the quality of the varnish.
- the glossy appearance can be obtained on the final capsule by a metallization process whose rates are generally low.
- the quality of the glossy appearance remains substantially unchanged on the head of the blank, but is very degraded on the skirt which has a more or less matte appearance.
- the invention aims to solve this problem by proposing a method retaining the initial glossy appearance over the entire surface of the blank, head and skirt, under industrially economic conditions for the market of caps for capping beverage bottles.
- the invention relates to a method of manufacturing metal closure caps comprising:
- a step of stamping in one or more passes, said blank metal, typically with the aid of a drawing lubricant, so as to form a stamped blank, comprising a head and a skirt, typically axisymmetric according to an axial direction,
- a step of degreasing thermally, typically at a temperature of 180 to 210 ° C, for a time of 3 to 5 minutes, or chemical in an alkaline medium, of said stamped blank, intended to typically eliminate the residues of lubricant, for forming a defatted blank that can be varnished
- a possible step of protective varnishing and / or decoration and characterized in that it comprises, after optionally directly linked with the drawing step, at least one drawing step of passing the blank pressed by at least one drawing ring to lengthen the metal and thin it.
- the blank has a thickness of 0.15 to 0.25 mm without taking into account the varnish.
- the draw ratio (1- final thickness / initial thickness of the sheet or strip) is greater than or equal to 2.5%.
- it is less than or equal to 30%.
- only the face intended for the inside of the capsule is coated with a varnish before stamping and the face intended for the outside of the capsule is only after the degreasing step.
- the two faces for the inside and outside of the capsule are coated with a varnish before stamping.
- the lubricant used for stamping is volatile and removed by heating.
- lubricant used for the drawing which advantageously is volatile and removed by heating, typically in a passage oven or in an oven.
- the same lubricant can be used for the two stamping and drawing steps.
- drawing and stretching steps are chained in two integrated steps, that is to say without any intermediate step and even more advantageously, they are carried out in one and the same press stroke.
- the aluminum alloy may be, but not exclusively, AA3105 or AA8011.
- the invention also relates to a metal closure cap manufactured by the method having one of the preceding characteristics, and characterized in that its roughness index Ra is less than 0.15 ⁇ , either of the "glossy” or “high gloss” type. And substantially uniform over the vertex assembly, or head, and skirt, or wall.
- Figure 1 is a schematic section of the capsule used for the tests, after stamping, in this case in a pass, and before stretching according to the invention. Its height h is 17.6 mm, its top or head or "high” has a radius R of 49.8 mm and is connected to the skirt or vertical wall A with a radius R of 2.8 mm
- FIG. 2 schematically illustrates the embodiment of the roughness measurements according to the NF EN ISO 4287 standard in the long-to-left direction, here for a stamped capsule, and to the right in the cross-direction, here for a stamped and stretched capsule. according to the invention.
- FIG. 3 represents the roughness Ra in microns obtained for walls or skirts of capsule blanks, measured in the long direction from top to bottom of the wall, marked SL, or across at the top of the wall, labeled ST:
- FIG. 4 represents in the same way the roughness obtained:
- capsule C pressed and stretched according to the invention from glossy metal, on the top or top of the capsule,
- FIG. 5 represents the pattern, in graduated scale composed of optical combs, used to quantify the brightness of the capsule walls by applying the standard NF EN ISO 10215 of image sharpness characterization on anodized products to apply it to the characterization of the brilliance.
- the interest of the invention was therefore multiple: uniformize the thickness of the skirt over its entire height by minimizing the amount of material used, or allowing the manufacture of higher capsules without increasing the amount of material and finally, obtain a uniform level of gloss on the top or head and on the skirt or capsule wall.
- the minimum rate of stretching is justified by the fact that the latter must at least bring the thickness of the entire skirt substantially uniformly to the value of the minimum thickness locally obtained after stamping (ie 0.203 mm in the case of Figure 1).
- the latter depends on the stamping conditions (roughness of the tool, play, clamping pressure, lubrication). This minimum rate is generally considered to be 2.5 or even 3%.
- the industrially acceptable stretching limit is 40%. A maximum draw ratio of approximately 30% is then obtained.
- the formats were cut into stamping blanks with a diameter of 58.70 mm using a cutting punch.
- the diameter of the matrix was 35.30 mm and its radius 1.10 mm.
- the lubricant was of the type known as LAPPING OIL 67 from HENKEL.
- the blanking pressure was adjusted to obtain a cup without creases.
- This step made it possible to manufacture cups or capsules stamped referenced A and
- Diameter of the punch 34.8 mm
- gambling% being the stretching ratio, here of 10%, ie 0.1
- step 1 that the thickness obtained in the skirt was not constant: -
- the actual drawing is in fact 7%
- - For the maximum thickness of 0.236 mm, actual stretching is actually 20%.
- the minimum stretch is imposed by the minimum thickness of the skirt after stamping.
- the minimum stretch to obtain a gloss recovered over the entire height of the skirt is 3.3%.
- This value, corresponding to the stretch necessary to obtain the minimum thickness of the skirt after stamping of 0.203 mm over its entire height, is obtained by the formula already mentioned (1- final thickness / initial thickness) where the final thickness is 0.203 mm and the initial thickness 0.210 mm.
- This step made it possible to manufacture drawn stretched capsules according to the invention, referenced C and D in FIGS. 3 and 4.
- the surface roughness being all the brighter that the surface is smooth so the low roughness
- the roughness of the capsule, stamped and stretched according to the invention was compared with the roughness of the capsule only stamped (according to the prior art), and finally with the roughness initial metal strip or sheet or starting format flat, before shaping the capsule.
- the roughness was measured on the wall or skirt and on the top or top, partly partly flat, in the long direction (SL), from top to bottom of the wall, and in the direction through (ST) at the top of the wall, as shown in Figure 2.
- the roughness was measured in the rolling direction (SL) and in the cross direction (ST).
- FIG. 3 compares the roughness of the walls or skirts of capsules A and B of the prior art with those of capsules C and D according to the invention.
- the roughness of the skirts of the capsules according to the invention are very similar in the long direction and in the cross direction, which is obviously of considerable importance because of its impact on the homogeneity of the gloss all over the skirt or wall.
- FIG. 4 compares the roughness on the top or the top of the capsules A, B, C and D as well as on the E-shaped capsule only, according to the prior art, from non-gloss raw metal "Mill Finish", and on the Tape or sheet metal before stamping F, shiny sheet metal, and G, sheet mill “Mill Finish”. It clearly shows, by comparison between the capsules (A, B) and (C, D), that on the top (or top) of the capsule, the roughness is unchanged, that is to say that the invention does not change the shine of the top of the capsule. It is higher than the initial roughness of the glossy metal, but remains lower than the roughness of a mill finish metal. This point demonstrates the interest of using as a starting sheet, a shiny metal to make the most of the initial shine on the top of the capsule and obtain, by drawing, an improved shine on the whole, including the skirt or wall.
- the graduated scale composed of optical combs, as shown in FIG. 5, was used and the rating, or scale of clarity, allowing a classification of the sharpness of the image, as in Table 1 below. :
- the test consists in placing the capsule, skirt or wall at a distance d from the optical comb pattern and evaluating the class beyond which the streaks of the pattern are no longer visible or, more precisely, are no longer visually dissociable. .
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Closures For Containers (AREA)
Abstract
Description
Claims
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US15/036,556 US10618097B2 (en) | 2013-11-19 | 2014-11-14 | Method for manufacturing brilliant metal sealing caps |
RU2016123931A RU2679670C1 (ru) | 2013-11-19 | 2014-11-14 | Способ изготовления блестящих металлических укупорочных колпачков |
EP14806690.5A EP3071347B1 (fr) | 2013-11-19 | 2014-11-14 | Procédé de fabrication de capsules de bouchage métalliques brillantes |
JP2016532570A JP6532873B2 (ja) | 2013-11-19 | 2014-11-14 | ブリリアントメタルシールキャップの製造方法 |
CN201480063355.3A CN105745035B (zh) | 2013-11-19 | 2014-11-14 | 制造光泽的金属密封帽的方法 |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR1302659A FR3013244B1 (fr) | 2013-11-19 | 2013-11-19 | Procede de fabrication de capsules de bouchage metalliques brillantes |
FR13/02659 | 2013-11-19 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2015075324A1 true WO2015075324A1 (fr) | 2015-05-28 |
Family
ID=49949738
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/FR2014/000243 WO2015075324A1 (fr) | 2013-11-19 | 2014-11-14 | Procédé de fabrication de capsules de bouchage métalliques brillantes |
Country Status (8)
Country | Link |
---|---|
US (1) | US10618097B2 (fr) |
EP (1) | EP3071347B1 (fr) |
JP (1) | JP6532873B2 (fr) |
CN (1) | CN105745035B (fr) |
AR (1) | AR098430A1 (fr) |
FR (1) | FR3013244B1 (fr) |
RU (1) | RU2679670C1 (fr) |
WO (1) | WO2015075324A1 (fr) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN111902226A (zh) * | 2018-03-26 | 2020-11-06 | 东洋制罐集团控股株式会社 | 金属加工物 |
WO2020225288A1 (fr) | 2019-05-09 | 2020-11-12 | Constelllium Rolled Products Singen Gmbh & Co.Kg | Procede de fabrication de capsules longues de bouchage metalliques comprenant une jupe ayant une epaisseur constante |
FR3095769A1 (fr) | 2019-05-09 | 2020-11-13 | Constellium Rolled Products Singen Gmbh & Co.Kg | Procédé de fabrication de capsules longues de bouchage métalliques comprenant une jupe ayant une épaisseur constante |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP6952482B2 (ja) * | 2017-02-15 | 2021-10-20 | ユニバーサル製缶株式会社 | ボトル缶用キャップ、およびボトル缶へのボトル缶用キャップのキャッピング方法 |
CN111360145A (zh) * | 2020-02-17 | 2020-07-03 | 中南大学 | 一种超细晶金属箔材电脉冲辅助微拉伸工艺 |
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WO1992006804A1 (fr) * | 1990-10-12 | 1992-04-30 | Weirton Steel Corporation | Production de boites en une seule piece par allongement controle de la paroi laterale |
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2013
- 2013-11-19 FR FR1302659A patent/FR3013244B1/fr active Active
-
2014
- 2014-11-14 JP JP2016532570A patent/JP6532873B2/ja active Active
- 2014-11-14 US US15/036,556 patent/US10618097B2/en active Active
- 2014-11-14 WO PCT/FR2014/000243 patent/WO2015075324A1/fr active Application Filing
- 2014-11-14 RU RU2016123931A patent/RU2679670C1/ru active
- 2014-11-14 EP EP14806690.5A patent/EP3071347B1/fr active Active
- 2014-11-14 AR ARP140104295A patent/AR098430A1/es active IP Right Grant
- 2014-11-14 CN CN201480063355.3A patent/CN105745035B/zh not_active Expired - Fee Related
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WO1992006804A1 (fr) * | 1990-10-12 | 1992-04-30 | Weirton Steel Corporation | Production de boites en une seule piece par allongement controle de la paroi laterale |
EP0572016A1 (fr) * | 1992-05-29 | 1993-12-01 | Toyota Jidosha Kabushiki Kaisha | Procédé et dispositif pour mouler sous pression des articles en forme de tubes et de récipients à partir d'une bande et à l'aide d'étages d'étirage directe et inverse |
GB2286364A (en) * | 1994-02-14 | 1995-08-16 | Toyo Kohan Co Ltd | Thermoplastic resin-laminated metal sheet |
EP1359006A1 (fr) * | 2000-11-16 | 2003-11-05 | Nippon Steel Corporation | Produit metallique possedant des caracteristiques excellentes de moulage de sa surface traitee par un lubrifiant soluble dans un milieu alcalin |
EP1304217B1 (fr) | 2001-10-17 | 2010-05-05 | Italcoat S.r.l. | Procédé de production de rubans semi-finis brillants |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN111902226A (zh) * | 2018-03-26 | 2020-11-06 | 东洋制罐集团控股株式会社 | 金属加工物 |
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CN111902226B (zh) * | 2018-03-26 | 2022-09-09 | 东洋制罐集团控股株式会社 | 金属加工物 |
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WO2020225288A1 (fr) | 2019-05-09 | 2020-11-12 | Constelllium Rolled Products Singen Gmbh & Co.Kg | Procede de fabrication de capsules longues de bouchage metalliques comprenant une jupe ayant une epaisseur constante |
FR3095769A1 (fr) | 2019-05-09 | 2020-11-13 | Constellium Rolled Products Singen Gmbh & Co.Kg | Procédé de fabrication de capsules longues de bouchage métalliques comprenant une jupe ayant une épaisseur constante |
FR3095768A1 (fr) | 2019-05-09 | 2020-11-13 | Constellium Rolled Products Singen Gmbh & Co. Kg | Procédé de fabrication de capsules longues de bouchage métalliques comprenant une jupe ayant une épaisseur constante |
Also Published As
Publication number | Publication date |
---|---|
EP3071347A1 (fr) | 2016-09-28 |
CN105745035A (zh) | 2016-07-06 |
JP2017512135A (ja) | 2017-05-18 |
CN105745035B (zh) | 2018-02-23 |
RU2016123931A (ru) | 2017-12-25 |
AR098430A1 (es) | 2016-05-26 |
FR3013244B1 (fr) | 2015-11-20 |
US20160288195A1 (en) | 2016-10-06 |
EP3071347B1 (fr) | 2019-06-05 |
RU2679670C1 (ru) | 2019-02-12 |
FR3013244A1 (fr) | 2015-05-22 |
JP6532873B2 (ja) | 2019-06-19 |
US10618097B2 (en) | 2020-04-14 |
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