EP0298876A1 - Bleche aus einer Magnesium enthaltenden Aluminiumlegierung, geeignet für die Herstellung von Getränkedosen durch Tiefziehen, und Verfahren zur Herstellung dieser Bleche - Google Patents

Bleche aus einer Magnesium enthaltenden Aluminiumlegierung, geeignet für die Herstellung von Getränkedosen durch Tiefziehen, und Verfahren zur Herstellung dieser Bleche Download PDF

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Publication number
EP0298876A1
EP0298876A1 EP88420215A EP88420215A EP0298876A1 EP 0298876 A1 EP0298876 A1 EP 0298876A1 EP 88420215 A EP88420215 A EP 88420215A EP 88420215 A EP88420215 A EP 88420215A EP 0298876 A1 EP0298876 A1 EP 0298876A1
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EP
European Patent Office
Prior art keywords
sheets
manufacture
magnesium
pickling
aluminum
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.)
Granted
Application number
EP88420215A
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English (en)
French (fr)
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EP0298876B1 (de
Inventor
Didier Teirlinck
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.)
Constellium Issoire SAS
Original Assignee
Cegedur Societe de Transformation de lAluminium Pechiney SA
Pechiney Rhenalu SAS
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Publication date
Application filed by Cegedur Societe de Transformation de lAluminium Pechiney SA, Pechiney Rhenalu SAS filed Critical Cegedur Societe de Transformation de lAluminium Pechiney SA
Publication of EP0298876A1 publication Critical patent/EP0298876A1/de
Application granted granted Critical
Publication of EP0298876B1 publication Critical patent/EP0298876B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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    • 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
    • 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
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C1/00—Making non-ferrous alloys

Definitions

  • the present invention relates to sheets of aluminum alloys containing magnesium suitable for the manufacture by drawing-drawing of can bodies and to a process for obtaining said sheets.
  • the strips thus obtained can be brought to smaller thicknesses up to a few microns by a series of cold or hot rolling operations separated or not by annealing operations.
  • these strips are transformed into sheets of thickness close to a few hundred microns, from which are cut out.
  • circular discs which, under the combined action of a punch and a die, are transformed by stamping into a bucket, which, after a so-called stretching operation aimed at thinning its walls, can be used as box body .
  • the change in shape resulting from the transition from a flat disc to a box body requires the application of significant efforts and is accompanied, in particular during stretching, by a phenomenon of galling that can be defined as an adhesion of a soft metal to a hard metal.
  • a phenomenon of galling that can be defined as an adhesion of a soft metal to a hard metal.
  • aluminum particles are torn off from the surface of the sheet and adhere to the surface of the tungsten carbide drawing tool. These particles, strongly hardened and therefore hard, cause the appearance of scratches on the body of the box, which reduces its mechanical resistance and can even lead to its rupture and in any case detract from its aesthetics.
  • USP 3,930,895 using an alloy of type 3004 according to the standard of the Aluminum Association, that is to say having the composition Si 0.3%, Fe 0.5% , Cu 0.25%, Mn 1 to 1.5%, Mg 0.8 to 1.3%, Zn 0.25%, balance Al, attributes the difficulties encountered to the fact that continuous casting between cylinders leads to formation particles of Al-Mn of dimensions less than 2 ⁇ m, which are too small to have a cleaning effect on the tool and therefore contribute to its fouling. He cites the fact that, when treating such an alloy obtained in plates by conventional casting, these particles have a dimension of 15 to 20 ⁇ m and there is then no fouling.
  • the inventor recommends, in order to increase the size of these particles, to modify the composition of the alloy 3004 by passing the manganese content in a range between 2 and 3%.
  • USP 4,111,721 also notes this galling phenomenon on 3004 and 3003 sheets and also admits that the particle size of Al-Mn and Al-Mn-Fe must be increased to remove it.
  • a heat treatment preferably carried out at a temperature of 620 ° C, during an interval of time between 16 and 24 hours, treatment which can be carried out either on the raw casting strip, or on the strip having already undergone a first series of rolling passes.
  • French Patent No. 2,505,365 also proposes a modification of the composition of the alloy used which no longer relates to manganese but to silicon, the content of which is increased to be in the range 0.3-0.6 % in weight.
  • French Patent No. 2,525,047 filed by the applicant recommends an entirely different solution consisting in mechanically cleaning the surface of the strip and in modifying it by heating in air.
  • This particular state is characterized in that the sheets present on 10 to 25% of their surface of the particles formed of amorphous oxides of aluminum and of crystalline oxides of magnesium and aluminum distributed in a homogeneous manner, having the form of discs dishes with a thickness of less than 5 ⁇ m and an average diameter widely distributed around an average value between 2 and 15 ⁇ m.
  • the aptitude for stamping-stretching is it linked, as taught by USP 3 930 895, to the presence of particles of relatively large dimensions approaching those observed in the plates but, the similarity ends there because the said particles are here very different both from the point of view of distribution, composition and shape. Indeed, - these particles are not distributed throughout the mass of the sheet but only on the surface and moreover on only a portion of the latter, - These particles are not composed of Al-Mn or Al-Mn-Fe type intermetals but of magnesium and aluminum oxides which are both amorphous and crystalline. - These particles have a very particular shape which is that of flat discs having a thickness limited to 5 ⁇ m and an average diameter widely distributed around an average value of between 2 and 15 ⁇ m.
  • the particles of the invention are particularly recognizable by examination of the sheet with an electron microscope by transmission where they appear in the form of large clusters of black color regularly dispersed in a lighter matrix and which microanalysis reveals that they consist essentially of amorphous and crystalline oxides of aluminum and magnesium.
  • the starting alloy it is therefore necessary for the starting alloy to contain magnesium.
  • contents as low as 0.1% by weight are perfectly suitable as well as contents up to 5% do not harm the obtaining of the result.
  • the invention is applicable to alloys also containing up to 2% manganese and or 1.5% silicon, elements to which may be added at least one of the following elements: Cu, Zn, Cr, Fe , up to a respective content by weight equal to 0.5%; 0.5%, 0.5%, 0.7% and also refining elements such as Ti and B up to 0.1% by weight for each of them.
  • an aluminum alloy sheet designated in the standards of the Aluminum Association under the reference 3004 that is to say containing by weight: Mg 0.8-1.3%; Mn 1.0-1.5%; If 0.3%; Fe 0.7%, 0.25% Cu, 0.25% Zn, having a surface in accordance with the invention, made it possible to obtain, with the same tool, more than 200,000 boxes without any breakage or scratches being observed.
  • an alloy referenced 5182 that is to say containing by weight 4.0-5.0% Mg; SiO, 20%; CuO, 15%; ZnO, 25%; FeO, 35% with the claimed structure, also made it possible to manufacture many boxes without incident.
  • the sheets of aluminum alloys loaded with magnesium that the applicant has made suitable for stamping-drawing according to the invention have the enormous advantage over the sheets of manganese alloys of having better resistance to traction and make it possible to envisage thickness reductions and thus improve the cost prices of the boxes.
  • the invention also relates to a process for obtaining said sheets.
  • This process is characterized in that the strip coming from the casting machine is subjected as it is or after at least one rolling pass, to a chemical pickling so as to reduce its thickness by at most 2 ⁇ m and this before make it undergo an air annealing between 330 and 450 ° C for a year minus thirty minutes.
  • the pickling conditions are chosen so as to obtain a thickness reduction of between 0.8 and 1 ⁇ m.
  • Pickling can be carried out using any pickling agent, but preferably using a solution containing between 0.1 and 10 g / l of NaOH in which the strip is immersed for a period suitable for not not remove a metal thickness greater than 2 ⁇ m. This duration depends on the composition of the alloy used and the rolling operations undergone by the band.
  • This pickling can be carried out at ambient temperature, that is to say in the vicinity of 20 ° C. but, to reduce the duration of the treatment, it can also be done at any temperature below 100 ° C. Preferably, one places oneself in the range 70 ° -80 ° C.
  • Optimal annealing conditions are achieved in the temperature range between 350 and 400 ° C for a period of between 1 and 2 hours.
  • the metal was then used to make bodies of boxes with a diameter of 0 ⁇ 66 mm and an average height of 130 mm by stamping and drawing.
  • the metal having undergone the same transformation range without pickling did not allow to produce boxes without scratches; beyond 500 boxes, the scratches increase with the number of boxes produced, and after 1,000 boxes there is a rupture of the walls of the box body.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Thermal Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Cleaning And De-Greasing Of Metallic Materials By Chemical Methods (AREA)
  • Metal Rolling (AREA)
  • Heat Treatment Of Sheet Steel (AREA)
  • Containers Having Bodies Formed In One Piece (AREA)
  • Laminated Bodies (AREA)
  • Shaping Metal By Deep-Drawing, Or The Like (AREA)
  • ing And Chemical Polishing (AREA)
  • Manufacture Of Metal Powder And Suspensions Thereof (AREA)
  • Powder Metallurgy (AREA)
EP88420215A 1987-06-24 1988-06-22 Bleche aus einer Magnesium enthaltenden Aluminiumlegierung, geeignet für die Herstellung von Getränkedosen durch Tiefziehen, und Verfahren zur Herstellung dieser Bleche Expired - Lifetime EP0298876B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8709271 1987-06-24
FR8709271A FR2617189B1 (fr) 1987-06-24 1987-06-24 Toles en alliage d'aluminium contenant du magnesium aptes a la fabrication par emboutissage-etirage de corps de boites et procede d'obtention desdites toles

Publications (2)

Publication Number Publication Date
EP0298876A1 true EP0298876A1 (de) 1989-01-11
EP0298876B1 EP0298876B1 (de) 1991-10-23

Family

ID=9352718

Family Applications (1)

Application Number Title Priority Date Filing Date
EP88420215A Expired - Lifetime EP0298876B1 (de) 1987-06-24 1988-06-22 Bleche aus einer Magnesium enthaltenden Aluminiumlegierung, geeignet für die Herstellung von Getränkedosen durch Tiefziehen, und Verfahren zur Herstellung dieser Bleche

Country Status (16)

Country Link
US (1) US4872921A (de)
EP (1) EP0298876B1 (de)
JP (1) JPS6421039A (de)
KR (1) KR910008149B1 (de)
CN (1) CN1014433B (de)
AU (1) AU605316B2 (de)
BR (1) BR8803074A (de)
CA (1) CA1304276C (de)
DE (1) DE3865760D1 (de)
EG (1) EG18619A (de)
FR (1) FR2617189B1 (de)
GR (1) GR3002978T3 (de)
MX (1) MX168912B (de)
NO (1) NO172135C (de)
NZ (1) NZ225067A (de)
SU (1) SU1720494A3 (de)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0452541A2 (de) * 1990-04-14 1991-10-23 W.C. Heraeus GmbH Verfahren zur Herstellung von Hohlkörpern aus Tantal
EP0490664A1 (de) * 1990-12-12 1992-06-17 Kabushiki Kaisha Kobe Seiko Sho Aluminium-Legierung für Wärmerollen
EP0504077A1 (de) * 1991-03-14 1992-09-16 Pechiney Rhenalu Zum Tiefziehen geignete hochfeste verformbare isotropische Legierungen auf Aluminiumbasis
AU718229B2 (en) * 1995-11-21 2000-04-13 Novelis Inc. Heat exchanger

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5028276A (en) * 1990-02-16 1991-07-02 Aluminum Company Of America Method for making lithoplate having improved grainability
US5681405A (en) 1995-03-09 1997-10-28 Golden Aluminum Company Method for making an improved aluminum alloy sheet product
US6344096B1 (en) 1995-05-11 2002-02-05 Alcoa Inc. Method of producing aluminum alloy sheet for automotive applications
US5714019A (en) * 1995-06-26 1998-02-03 Aluminum Company Of America Method of making aluminum can body stock and end stock from roll cast stock
US5976279A (en) * 1997-06-04 1999-11-02 Golden Aluminum Company For heat treatable aluminum alloys and treatment process for making same
US5993573A (en) * 1997-06-04 1999-11-30 Golden Aluminum Company Continuously annealed aluminum alloys and process for making same
US5985058A (en) * 1997-06-04 1999-11-16 Golden Aluminum Company Heat treatment process for aluminum alloys
US6579387B1 (en) 1997-06-04 2003-06-17 Nichols Aluminum - Golden, Inc. Continuous casting process for producing aluminum alloys having low earing
US20030173003A1 (en) * 1997-07-11 2003-09-18 Golden Aluminum Company Continuous casting process for producing aluminum alloys having low earing
AU2003215101A1 (en) * 2002-02-08 2003-09-02 Nichols Aluminum Method of manufacturing aluminum alloy sheet
US20040011438A1 (en) * 2002-02-08 2004-01-22 Lorentzen Leland L. Method and apparatus for producing a solution heat treated sheet
CN102528401B (zh) * 2012-02-24 2014-08-20 西南铝业（集团）有限责任公司 一种食品罐头盒生产工艺
CN103014452B (zh) * 2012-12-27 2015-03-18 亚洲铝业（中国）有限公司 5182铝合金拉环料基材及其生产方法

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1210625A (fr) * 1955-10-26 1960-03-09 Nordisk Aluminium Ind As Procédé pour fabriquer des matériaux pour emballages
DE2418642A1 (de) * 1974-04-18 1975-11-13 Metallgesellschaft Ag Verfahren zur kontinuierlichen oberflaechenbearbeitung von baendern aus metall
DE2440798A1 (de) * 1974-08-26 1976-03-18 Metallgesellschaft Ag Verfahren zum abtragen der oberflaeche von einem kontinuierlich gegossenen bandfoermigen strang
FR2507210A1 (fr) * 1981-06-05 1982-12-10 Continental Group Procede de fabrication d'une tole d'aluminium de limite elastique elevee
GB2133044A (en) * 1983-01-10 1984-07-18 Pennwalt Corp Cleaning and etching process for aluminum containers

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1420920A (en) * 1971-12-30 1976-01-14 Diversey Ltd Etching compositions
US3930895A (en) * 1974-04-24 1976-01-06 Amax Aluminum Company, Inc. Special magnesium-manganese aluminum alloy
DE2814683A1 (de) * 1978-04-05 1979-10-18 Bbc Brown Boveri & Cie Hochstrom-quecksilber-niederdrucklampe
US4235646A (en) * 1978-08-04 1980-11-25 Swiss Aluminium Ltd. Continuous strip casting of aluminum alloy from scrap aluminum for container components
DE2917627A1 (de) * 1979-05-02 1980-11-13 Aluminium Walzwerke Singen Verfahren zum herstellen von aluminiumbaendern oder -blechen sowie deren verwendung

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1210625A (fr) * 1955-10-26 1960-03-09 Nordisk Aluminium Ind As Procédé pour fabriquer des matériaux pour emballages
DE2418642A1 (de) * 1974-04-18 1975-11-13 Metallgesellschaft Ag Verfahren zur kontinuierlichen oberflaechenbearbeitung von baendern aus metall
DE2440798A1 (de) * 1974-08-26 1976-03-18 Metallgesellschaft Ag Verfahren zum abtragen der oberflaeche von einem kontinuierlich gegossenen bandfoermigen strang
FR2507210A1 (fr) * 1981-06-05 1982-12-10 Continental Group Procede de fabrication d'une tole d'aluminium de limite elastique elevee
GB2133044A (en) * 1983-01-10 1984-07-18 Pennwalt Corp Cleaning and etching process for aluminum containers

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0452541A2 (de) * 1990-04-14 1991-10-23 W.C. Heraeus GmbH Verfahren zur Herstellung von Hohlkörpern aus Tantal
EP0452541A3 (en) * 1990-04-14 1992-01-02 W.C. Heraeus Gmbh Method of manufacturing hollow objects from tantalum
EP0490664A1 (de) * 1990-12-12 1992-06-17 Kabushiki Kaisha Kobe Seiko Sho Aluminium-Legierung für Wärmerollen
EP0504077A1 (de) * 1991-03-14 1992-09-16 Pechiney Rhenalu Zum Tiefziehen geignete hochfeste verformbare isotropische Legierungen auf Aluminiumbasis
EP0666330A2 (de) * 1991-03-14 1995-08-09 Pechiney Rhenalu Zum Tiefziehen geeignete Hochfeste verformbare isotropische Legierungen auf Aluminiumbasis
EP0666330A3 (de) * 1991-03-14 1996-07-17 Pechiney Rhenalu Zum Tiefziehen geeignete Hochfeste verformbare isotropische Legierungen auf Aluminiumbasis.
AU718229B2 (en) * 1995-11-21 2000-04-13 Novelis Inc. Heat exchanger
AU718229C (en) * 1995-11-21 2001-10-11 Novelis Inc. Heat exchanger

Also Published As

Publication number Publication date
AU605316B2 (en) 1991-01-10
NO882717L (no) 1988-12-27
US4872921A (en) 1989-10-10
BR8803074A (pt) 1989-01-10
NO172135B (no) 1993-03-01
NZ225067A (en) 1989-11-28
CN1032194A (zh) 1989-04-05
MX168912B (es) 1993-06-14
JPS6421039A (en) 1989-01-24
FR2617189B1 (fr) 1989-10-20
KR890000684A (ko) 1989-03-16
GR3002978T3 (en) 1993-01-25
CA1304276C (fr) 1992-06-30
NO172135C (no) 1993-06-09
EG18619A (en) 1993-08-30
JPH0341543B2 (de) 1991-06-24
SU1720494A3 (ru) 1992-03-15
KR910008149B1 (ko) 1991-10-10
CN1014433B (zh) 1991-10-23
FR2617189A1 (fr) 1988-12-30
DE3865760D1 (de) 1991-11-28
AU1828188A (en) 1989-01-05
NO882717D0 (no) 1988-06-20
EP0298876B1 (de) 1991-10-23

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