EP1624083B1 - Verfahren zur Herstellung von Aerosol-Sprühdosen - Google Patents

Verfahren zur Herstellung von Aerosol-Sprühdosen Download PDF

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Publication number
EP1624083B1
EP1624083B1 EP05354027A EP05354027A EP1624083B1 EP 1624083 B1 EP1624083 B1 EP 1624083B1 EP 05354027 A EP05354027 A EP 05354027A EP 05354027 A EP05354027 A EP 05354027A EP 1624083 B1 EP1624083 B1 EP 1624083B1
Authority
EP
European Patent Office
Prior art keywords
slugs
process according
alloy
weight
aerosol
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
Application number
EP05354027A
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English (en)
French (fr)
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EP1624083A2 (de
EP1624083A3 (de
Inventor
Jean-Maurice Bulliard
Guenter Hoellrigl
Cédric Fanton
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Trivium Aluminium Packaging France SAS
Original Assignee
Boxal France SAS
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Filing date
Publication date
Application filed by Boxal France SAS filed Critical Boxal France SAS
Publication of EP1624083A2 publication Critical patent/EP1624083A2/de
Publication of EP1624083A3 publication Critical patent/EP1624083A3/de
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Publication of EP1624083B1 publication Critical patent/EP1624083B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C21/00—Alloys based on aluminium
    • C22C21/02—Alloys based on aluminium with silicon as the next major constituent
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C21/00—Alloys based on aluminium
    • C22C21/06—Alloys based on aluminium with magnesium as the next major constituent
    • C22C21/08—Alloys based on aluminium with magnesium as the next major constituent with silicon
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22F—CHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS AND NON-FERROUS ALLOYS
    • C22F1/00—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working
    • C22F1/04—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of aluminium or alloys based thereon
    • C22F1/043—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of aluminium or alloys based thereon of alloys with silicon as the next major constituent
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22F—CHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS AND NON-FERROUS ALLOYS
    • C22F1/00—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working
    • C22F1/04—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of aluminium or alloys based thereon
    • C22F1/05—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of aluminium or alloys based thereon of alloys of the Al-Si-Mg type, i.e. containing silicon and magnesium in approximately equal proportions
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S72/00—Metal deforming
    • Y10S72/715—Method of making can bodies
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/4998—Combined manufacture including applying or shaping of fluent material
    • Y10T29/49982—Coating
    • Y10T29/49986—Subsequent to metal working

Definitions

  • the aerosol containers are generally made from an aluminum alloy comprising 99.7% by weight of aluminum, also called A7 or EN AW-1070A according to standard NF EN 573-3, or more particularly from an aluminum alloy comprising 99.5% by weight of aluminum, also called A5 or EN AW-1050A according to standard NF EN 573-3.
  • the alloy used is usually formed into pions of a predetermined diameter. A strip is obtained by continuous casting, hot rolling then cold. The pions are then cut and heat-annealed. Then, the aerosol containers are made from the pins by means of a cold-shock spinning step before an internal varnish is applied inside the housing and a printing step is not performed on the outer wall of the housing.
  • the alloys A5 and A7 make it possible to produce the pins in a continuous manner and they have elongation and ductability properties that are particularly suitable for forming the aerosol containers.
  • the mechanical characteristics of these alloys drop substantially during the step of applying a varnish inside the housing.
  • the walls of the housing must be thick, which leads to a significant consumption of raw material.
  • an aerosol casing using an aluminum alloy of the Aluminum-Magnesium-Silicon (Al-Mg-Si) family.
  • Al-Mg-Si Aluminum-Magnesium-Silicon
  • the method of manufacturing aerosol housings comprising such an alloy is to perform a semi-continuous casting for forming different Al-Mg-Si alloy plates.
  • the plates then require an eight hour heat treatment at 585 ° C to homogenize the alloy.
  • they are hot and cold rolled and cut to form pions of a predetermined diameter.
  • the pions are then annealed in an oven at 460 ° C for one hour. Once removed from the oven, the pions are cooled to room temperature. In fact, in contact with the ambient air, the temperature of the pions decreases from 400 ° C to 200 ° C in forty minutes and then very slowly and linearly until equilibrium.
  • the pions are subsequently shaped into aerosol cans by cold shock spinning.
  • an internal varnish is applied in each and a polymerization step is carried out at a temperature between 180 ° C and 250 ° C for twenty minutes.
  • the object of the invention is to provide a method of manufacturing that makes it possible to obtain aerosol housings having, for the same thickness, improved mechanical properties compared with the aerosol containers according to the prior art and more particularly with respect to the housings of aerosols.
  • A5 alloy aerosols while remaining easy to implement, industrializable and less expensive.
  • an aerosol can according to the invention also called an aerosol body or containing an aerosol generator, is previously formed pions from an aluminum alloy having the following composition , in percent by weight: Yes 0.35 - 0.45 mg : 0.25 -0.40 mn : 0.05 -0.15 Fe : 0.12 - 0.20 Total minor items : ⁇ 0.15% al : Rest.
  • the contents of silicon, magnesium, manganese and iron are, respectively, strictly greater than 0.35% by weight, 0.25% by weight, 0.05% by weight and 0.12% by weight. More particularly, the alloy preferably comprises, in percentage by weight: IF : 0.40 - 0.45 mg : 0.30 -0.35 mn : 0.08 -0.12 Fe : 0.12 - 0.20 Total minor items : ⁇ 0.15% al : Rest
  • Such an alloy makes it possible in particular to carry out a continuous casting.
  • the aluminum alloy is fused in an oven and then poured continuously, in liquid form, on a casting wheel comprising, for example, a water cooling system.
  • a casting wheel comprising, for example, a water cooling system.
  • This makes it possible to form a continuous band and solidified aluminum alloy.
  • the strip is rolled after hot rolling on a reel before being subsequently unrolled to be cold rolled. The rolling operation reduces the thickness of a strip to a predetermined thickness.
  • the strip is then cut on a cutting press to form pins or discs with a predetermined diameter according to the desired dimensions for the final housings.
  • the pions undergo a heat treatment or annealing, of a duration, preferably, between four hours and a half and five hours and at a temperature, preferably, between 465 ° C and 490 ° C.
  • a first annealing phase thus makes it possible to eliminate the soluble oils disposed on the surface of the pions during the cutting step, and then the tensions created in the alloy during the rolling.
  • the heat treatment is followed by a forced cooling step.
  • Forced cooling means that the cooling of the pions is imposed over a relatively short period of time, as opposed to a natural and slow cooling, at room temperature.
  • the temperature is preferably lowered exponentially by about 400 ° C in two and a half hours.
  • the temperature of the pin increases from 490 ° C. to 100 ° C. in two hours and thirty minutes.
  • the forced cooling is, for example, carried out by immersion of the pions in water or by forced air, that is to say in the wind tunnel.
  • Each peg is then subjected to a cold-shock spinning step, which makes it possible to obtain a cylindrical hollow part forming the aerosol casing.
  • Shock spinning of the pins is achieved by any type of means known in the field of the manufacture of aerosol housings and it is possibly followed by finishing operations such as trimming the housing, washing ...
  • a layer of varnish is then applied inside the housing.
  • This varnish layer for example a phenolic epoxy resin, is preferably applied by spraying followed by polymerization at a temperature of between 200 ° C. and 250 ° C. for a period of time of less than 10 minutes.
  • the polymerization temperature is between 220 ° C and 225 ° C and the polymerization time is six minutes.
  • Polymerization at a temperature of 200 ° C to 250 ° C accelerates the aging process of the alloy. This has the consequence of very substantially improving the mechanical characteristics of the aerosol can.
  • the housing is subjected to an external printing step intended to form patterns on the outer wall of the housing. The housing is then terminated by a conification step.
  • the fact of performing a forced cooling of the pin allows to obtain a relatively ductile pin, which significantly reduces the spinning force during the spinning step cold shock.
  • the spinning force of a pin having undergone forced cooling can be reduced by 25% compared to a pin having undergone a slow cooling. It also causes a relatively large aging effect of the aluminum alloy, which brings good final mechanical performance to the housing and in particular a good resistance once it is formed.
  • the alloy B has the following composition in percentage by weight: Yes : 0.38 mg : 0.31 mn : 0.06 Fe : 0.14 Ti : 0.023 V : 0.010 Ga : 0.014 al : Rest.
  • Table I below indicates the mechanical performances of the two housings of alloy A5 and alloy B, respectively.
  • Hb Brinell hardness
  • Rm tensile strength
  • R 0.2 elastic limit
  • A50 elongation
  • the value of the Brinell hardness of the alloy B pin is slightly higher than that of the A5 alloy pin, it remains, however, perfectly suitable for performing the cold-spinning operation.
  • the mechanical performance of the alloy housing B and in particular the tensile strength do not drop after the polymerization of the varnish layer. On the contrary, they increase slightly.
  • the value of the elongation A50 of the alloy housing B is 3.6% after the polymerization step of the lacquer layer, whereas for the alloy A5, the value of the elongation A50 is not than 1.3%.
  • the mechanical performance of the finished B-alloy case is significantly better than that of the finished A5 alloy case, the breaking strength being 180MPa for the B-alloy case while, for an A5 alloy case, the resistance to the break is 133MPa.
  • Table II below also indicates the first deformation, burst pressure, vacuum resistance and piercing resistance measurements of the two housings.
  • an alloy comprising from 0.35 to 0.45% by weight of Si, from 0.25 to 0.40% by weight of Mg, from 0.05 to 0.15% by weight of Mn, from 0.12 to 0.20% by weight of Fe, up to 0.15% of minor elements, the balance being aluminum and the fact of making a forced cooling to keep a pion having spinning parameters relatively close to those of an A5 alloy peg while achieving better final performance.
  • the manufacturing process used is inexpensive and easy to implement and industrializable.
  • the gain in mechanical performance also makes it possible to manufacture aerosol cans with less raw material.
  • the thickness of the aerosol casings obtained according to the manufacturing method according to the invention can be reduced by 15%.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Organic Chemistry (AREA)
  • Metallurgy (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Containers And Packaging Bodies Having A Special Means To Remove Contents (AREA)
  • Shaping Metal By Deep-Drawing, Or The Like (AREA)
  • Medicinal Preparation (AREA)
  • Acyclic And Carbocyclic Compounds In Medicinal Compositions (AREA)
  • Filling Or Discharging Of Gas Storage Vessels (AREA)
  • Detergent Compositions (AREA)

Claims (8)

  1. Verfahren zur Herstellung von Aerosol-Sprühdosen, das mindestens folgende Schritte umfasst:
    - g von Butzen aus einer Aluminiumlegierung,
    - Wärmebehandlung der Butzen,
    - Abkühlung der Butzen,
    - Kaltschlagfließpressen eines Butzens zur Formung einer Dose,
    - Innenlackierung der Dose,
    Verfahren, das dadurch gekennzeichnet ist, dass das Kühlen der Butzen nach der Wärmebehandlung eine Zwangskühlung ist, sowie dadurch, dass die Aluminiumlegierung folgende Zusammensetzung in Gew.-% hat: Si : 0,35 -0,45 Mg : 0,25 -0,40 Mn : 0,05 - 0,15 Fe : 0,12-0,20 Gesamt Nebenelemente : ≤ 0,15% Al : Rest,
    wobei der Silizium-, Magnesium-, Mangan- und Eisengehalt jeweils zwingend über 0,35, 0,25, 0,05 und 0,12 Gew.-% liegt.
  2. Verfahren nach Anspruch 1, dadurch gekennzeichnet, dass die Aluminiumlegierung in Gew.-% enthält: Si : 0,40 -0,45 Mg : 0,30 -0,35 Mn : 0,08 - 0,12 Fe : 0,12-0,20 Gesamt Nebenelemente : ≤ 0,15% Al : Rest
  3. Verfahren nach einem der Ansprüche 1 und 2, dadurch gekennzeichnet, dass die Temperatur der Butzen während der Zwangskühlungsphase exponenziell um etwa 400°C in zweieinhalb Stunden abgesenkt wird.
  4. Verfahren nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, dass die Zwangskühlung der Butzen mittels Druckluft erreicht wird.
  5. Verfahren nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, dass die Zwangskühlung der Butzen durch Eintauchen in Wasser erreicht wird.
  6. Verfahren nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, dass die Herstellungsphase der Butzen die Herstellung eines Bands aus Aluminiumlegierung im Stranggussverfahren umfasst, wobei das Band anschließend heiß- und dann kaltgewalzt wird, bevor es entsprechend einem vorbestimmten Durchmesser in Butzen geschnitten wird.
  7. Verfahren nach einem der Ansprüche 1 bis 6, dadurch gekennzeichnet, dass die Wärmebehandlung der Butzen bei einer Temperatur von 465 bis 490°C während einer Dauer von 4 bis 5 Stunden erfolgt.
  8. Verfahren nach einem der Ansprüche 1 bis 7, dadurch gekennzeichnet, dass der Lackierungsschritt durch Zerstäubung erfolgt, gefolgt von einer Polymerisation bei einer Temperatur von 200 bis 250°C während einer Zeit von unter 10 Minuten.
EP05354027A 2004-07-27 2005-07-12 Verfahren zur Herstellung von Aerosol-Sprühdosen Expired - Lifetime EP1624083B1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR0408283A FR2873717B1 (fr) 2004-07-27 2004-07-27 Procede de fabrication de boitiers d'aerosols.

Publications (3)

Publication Number Publication Date
EP1624083A2 EP1624083A2 (de) 2006-02-08
EP1624083A3 EP1624083A3 (de) 2007-05-16
EP1624083B1 true EP1624083B1 (de) 2011-04-27

Family

ID=34948241

Family Applications (1)

Application Number Title Priority Date Filing Date
EP05354027A Expired - Lifetime EP1624083B1 (de) 2004-07-27 2005-07-12 Verfahren zur Herstellung von Aerosol-Sprühdosen

Country Status (6)

Country Link
US (1) US7520044B2 (de)
EP (1) EP1624083B1 (de)
AT (1) ATE507317T1 (de)
DE (1) DE602005027639D1 (de)
ES (1) ES2365716T3 (de)
FR (1) FR2873717B1 (de)

Families Citing this family (17)

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Publication number Priority date Publication date Assignee Title
CN102397899A (zh) * 2010-09-09 2012-04-04 无锡鸿声铝业有限公司 连接杆铝型材生产工艺
CN102397900A (zh) * 2010-09-09 2012-04-04 无锡鸿声铝业有限公司 操作箱插座横梁铝型材生产工艺
CN110218869A (zh) 2011-09-16 2019-09-10 鲍尔公司 用回收废铝制造冲击挤压容器
JP6255084B2 (ja) 2013-04-09 2017-12-27 ボール コーポレイションＢａｌｌ Ｃｏｒｐｏｒａｔｉｏｎ 再利用アルミニウム合金から作られる、ネジ込みネックを有するアルミニウム衝撃押出成形ボトル及びその製法
ES2630058T3 (es) * 2013-12-06 2017-08-17 Moravia Cans A.S. Aleación resistente al calor para la producción de latas de aerosol
SI24969A (sl) * 2015-04-03 2016-10-28 TALUM d.d. KidriÄŤevo Aluminijeva zlitina za izdelavo aluminijevih aerosol doz s protismernim izstiskovanjem in postopek za njeno izdelavo
US20180044155A1 (en) 2016-08-12 2018-02-15 Ball Corporation Apparatus and Methods of Capping Metallic Bottles
EP4219780A1 (de) 2016-12-30 2023-08-02 Ball Corporation Aluminiumlegierung für fliessgepresste behälter und verfahren zu ihrer herstellung
WO2018152230A1 (en) 2017-02-16 2018-08-23 Ball Corporation Apparatus and methods of forming and applying roll-on pilfer proof closures on the threaded neck of metal containers
BR112020004710A2 (pt) 2017-09-15 2020-09-08 Ball Corporation sistema e método de formação de tampa metálica para recipiente rosqueado
DE102018215254A1 (de) * 2018-09-07 2020-03-12 Neuman Aluminium Austria Gmbh Aluminiumlegierung, Halbzeug, Dose, Verfahren zur Herstellung eines Butzen, Verfahren zur Herstellung einer Dose sowie Verwendung einer Aluminiumlegierung
DE102018215243A1 (de) 2018-09-07 2020-03-12 Neumann Aluminium Austria Gmbh Aluminiumlegierung, Halbzeug, Dose, Verfahren zur Herstellung eines Butzen, Verfahren zur Herstellung einer Dose sowie Verwendung einer Aluminiumlegierung
EP3940098A1 (de) * 2020-07-16 2022-01-19 Envases Metalúrgicos De Álava, S.A. Aluminiumlegierungen zur herstellung von aluminiumdosen durch fliesspressen
EP3940100A1 (de) 2020-07-16 2022-01-19 Envases Metalúrgicos De Álava, S.A. Aluminiumlegierungen zur herstellung von aluminiumdosen durch fliesspressen
EP3940099A1 (de) * 2020-07-16 2022-01-19 Envases Metalúrgicos De Álava, S.A. Aluminiumlegierungen zur herstellung von aluminiumdosen durch fliesspressen
US12291371B2 (en) 2022-02-04 2025-05-06 Ball Corporation Method for forming a curl and a threaded metallic container including the same
NO20240023A1 (en) * 2024-01-09 2025-07-10 Hydro Extruded Solutions As Extruded profile of an aluminium alloy and method for producing an extruded profile

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FR2457328A1 (fr) * 1979-05-25 1980-12-19 Cebal Alliage d'aluminium de type a-gs
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FR2617188B1 (fr) * 1987-06-23 1989-10-20 Cegedur Alliage a base d'al pour boitage et procede d'obtention
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Also Published As

Publication number Publication date
EP1624083A2 (de) 2006-02-08
US7520044B2 (en) 2009-04-21
ATE507317T1 (de) 2011-05-15
DE602005027639D1 (de) 2011-06-09
US20060021415A1 (en) 2006-02-02
FR2873717B1 (fr) 2006-10-06
ES2365716T3 (es) 2011-10-10
EP1624083A3 (de) 2007-05-16
FR2873717A1 (fr) 2006-02-03

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