EP1483422B1 - Utilisation de bandes minces en alliage aluminium-fer - Google Patents
Utilisation de bandes minces en alliage aluminium-fer Download PDFInfo
- Publication number
- EP1483422B1 EP1483422B1 EP03739530A EP03739530A EP1483422B1 EP 1483422 B1 EP1483422 B1 EP 1483422B1 EP 03739530 A EP03739530 A EP 03739530A EP 03739530 A EP03739530 A EP 03739530A EP 1483422 B1 EP1483422 B1 EP 1483422B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- alloy
- strips
- strip
- trays
- dishes
- 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
Links
- KCZFLPPCFOHPNI-UHFFFAOYSA-N alumane;iron Chemical compound [AlH3].[Fe] KCZFLPPCFOHPNI-UHFFFAOYSA-N 0.000 title description 2
- 229910000640 Fe alloy Inorganic materials 0.000 title 1
- 238000004519 manufacturing process Methods 0.000 claims abstract description 14
- 239000000203 mixture Substances 0.000 claims abstract description 9
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract description 8
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 7
- 229910000838 Al alloy Inorganic materials 0.000 claims abstract description 6
- 229910045601 alloy Inorganic materials 0.000 claims description 22
- 239000000956 alloy Substances 0.000 claims description 22
- 238000000137 annealing Methods 0.000 claims description 15
- 238000009749 continuous casting Methods 0.000 claims description 10
- 238000005097 cold rolling Methods 0.000 claims description 7
- 238000000265 homogenisation Methods 0.000 claims description 7
- 238000000034 method Methods 0.000 claims description 5
- 230000008569 process Effects 0.000 claims description 5
- 239000004411 aluminium Substances 0.000 claims description 3
- 238000002360 preparation method Methods 0.000 claims 1
- 238000007493 shaping process Methods 0.000 claims 1
- 238000009826 distribution Methods 0.000 abstract description 2
- 235000013410 fast food Nutrition 0.000 abstract description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 15
- 229910052742 iron Inorganic materials 0.000 description 6
- 239000011572 manganese Substances 0.000 description 6
- 238000005266 casting Methods 0.000 description 5
- 239000010949 copper Substances 0.000 description 3
- 230000006872 improvement Effects 0.000 description 3
- 229910052710 silicon Inorganic materials 0.000 description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 235000013305 food Nutrition 0.000 description 2
- 238000005098 hot rolling Methods 0.000 description 2
- 229910052748 manganese Inorganic materials 0.000 description 2
- WPBNNNQJVZRUHP-UHFFFAOYSA-L manganese(2+);methyl n-[[2-(methoxycarbonylcarbamothioylamino)phenyl]carbamothioyl]carbamate;n-[2-(sulfidocarbothioylamino)ethyl]carbamodithioate Chemical compound [Mn+2].[S-]C(=S)NCCNC([S-])=S.COC(=O)NC(=S)NC1=CC=CC=C1NC(=S)NC(=O)OC WPBNNNQJVZRUHP-UHFFFAOYSA-L 0.000 description 2
- 238000004806 packaging method and process Methods 0.000 description 2
- 239000010703 silicon Substances 0.000 description 2
- 230000003068 static effect Effects 0.000 description 2
- 229910018084 Al-Fe Inorganic materials 0.000 description 1
- 229910018192 Al—Fe Inorganic materials 0.000 description 1
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 description 1
- 239000004236 Ponceau SX Substances 0.000 description 1
- 230000003042 antagnostic effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005496 eutectics Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000010419 fine particle Substances 0.000 description 1
- 229910000765 intermetallic Inorganic materials 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- PXHVJJICTQNCMI-UHFFFAOYSA-N nickel Substances [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
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
-
- 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
Definitions
- the invention relates to the use of thin strips, typically of a thickness of between 30 and 150 ⁇ m, of alloy of the iron-aluminum type, suitable for stamping, intended in particular for packaging, and more particularly for the manufacture of trays and thin plates for the distribution of foodstuffs and fast food.
- Al-Fe 8000 series alloys according to the nomenclature of the Aluminum Association are widely used for the manufacture of thin sheets or strips for packaging. Their manufacture can be done either conventionally by casting a plate, hot rolling, then cold, with one or more intermediate annealing and usually a final annealing, either by continuous casting, for example between two rolls, and cold rolling, and optionally one or more anneals.
- the continuous strip casting allows, for a moderate investment cost, to obtain in a fairly wide range of alloys strips that do not require subsequent hot rolling.
- significant progress has been made by casting machine manufacturers in reducing the thickness of the cast strip, which can in some cases go down to about 1 mm, thereby decreasing cold rolling at carry out.
- the patent US 5380379 Alcoa Aluminio de Nordeste concerns the manufacture, by continuous casting between rolls, of very thin alloy sheets containing 1.35 to 1.6% iron, 0.3 to 0.6% manganese, 0, 1 to 0.4% copper and less than 0.2% silicon.
- the silicon content is limited by the appearance of intermetallic phases of AlFeSi or AlMnSi type, while the presence of copper is necessary to give the product sufficient mechanical strength.
- the patent application WO 98/52707 of the applicant describes a method of manufacturing aluminum alloy strips containing (by weight) at least one of the elements Fe (from 0.15 to 1.5%) or Mn (from 0.35 to 1.9 %) with Fe + Mn ⁇ 2.5%, and optionally containing Si ( ⁇ 0.8%), Mg ( ⁇ 0.2%), Cu ( ⁇ 0.2%) by continuous casting between cooled and shrink rolls at a thickness of between 1 and 5 mm, followed by cold rolling.
- the strips obtained have both a yield strength greater than that of the bands resulting from the conventional process, and good formability.
- alloy 8021B whose composition recorded in the Aluminum Association is as follows (% by weight): Yes Fe Cu mn mg Cr Zn Ti ⁇ 0.40 1.1-1.7 ⁇ 0.05 ⁇ 0.03 ⁇ 0.01 ⁇ 0.03 ⁇ 0.05 ⁇ 0.05
- the object of the invention is to improve the compromise between the mechanical strength, the formability and the isotropy of the mechanical properties with respect to this reference alloy.
- the subject of the invention is also a process for producing alloy strips of this composition by continuous casting between rolls of a strip of thickness of between 2 and 10 mm, optionally homogenizing this strip between 420 and 550 ° C. the cold rolling of this strip to the final thickness with optionally an intermediate annealing of 1 to 4 hours between 300 and 350 ° C, and a final annealing at a temperature between 200 and 430 ° C of a duration at least 30 hours.
- the alloy used for the sheets and strips according to the invention is characterized by an iron content of between 1.5 and 1.9%, which is higher than that customarily used for the alloy 8021B intended for the manufacture of dishes and trays. .
- the advantage of a higher iron content lies in the improvement of the mechanical strength; this effect is even more marked when the strips are obtained by continuous casting between rolls.
- the iron content must remain below 1.9% in order to avoid getting too close to the AlFe eutectic content, and thus to see AlFe coarse primary phases.
- the other characteristic is a manganese content of between 0.04 and 0.15%.
- This addition has a favorable effect on the mechanical strength, while maintaining a high level of elongation, the compromise between these usually antagonistic properties being markedly improved when the strips are produced by continuous casting. Beyond 0.15% of manganese, it plays more clearly its role anti-recrystallizer, which may affect the effectiveness of the final annealing, necessary to obtain a good isotropy of mechanical characteristics.
- the production of the sheets and strips according to the invention is preferably by continuous casting of a strip of thickness between 2 and 10 mm between two cylinders cooled and fretted ("twin-roll casting").
- the cast strip can be homogenized, especially in the case where it is desired to promote the elongation rather than the mechanical strength. This homogenization must be done at a not too high temperature, between 420 and 550 ° C, to avoid too much degrade the mechanical strength. If the requirements for elongation are less restrictive, homogenization is not essential.
- the strip is then cold rolled with the number of passes required up to the final thickness of between 30 and 150 ⁇ m.
- This cold rolling can be done with or without intermediate annealing.
- the intermediate annealing When the intermediate annealing is necessary, it must be relatively short, of the order of 1 to 4 hours, and be at a temperature not too high, typically between 300 and 350 ° C, to prevent grain growth. But it is possible, when not looking for very high values for elongation, to avoid both homogenization and intermediate annealing, which makes the range of manufacture particularly simple.
- the laminated strip is then annealed at a temperature between 200 and 400 ° C, for a period of at least 30 hours, so as to obtain a recrystallized structure.
- This annealing can be performed in one or more temperature stages, for example a first stage between 200 and 300 ° C, and a second between 300 and 400 ° C.
- the strip is then cut into sheets if necessary.
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Crystallography & Structural Chemistry (AREA)
- Thermal Sciences (AREA)
- Physics & Mathematics (AREA)
- Heat Treatment Of Sheet Steel (AREA)
- Laminated Bodies (AREA)
- Cookers (AREA)
- Continuous Casting (AREA)
- Table Devices Or Equipment (AREA)
- Clamps And Clips (AREA)
- Soft Magnetic Materials (AREA)
- Containers Having Bodies Formed In One Piece (AREA)
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR0201959 | 2002-02-15 | ||
FR0201959A FR2836154B1 (fr) | 2002-02-15 | 2002-02-15 | Bandes minces en alliage aluminium-fer |
PCT/FR2003/000452 WO2003069003A2 (fr) | 2002-02-15 | 2003-02-12 | Bandes minces en alliage aluminium-fer |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1483422A2 EP1483422A2 (fr) | 2004-12-08 |
EP1483422B1 true EP1483422B1 (fr) | 2008-04-16 |
Family
ID=27636231
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP03739530A Expired - Lifetime EP1483422B1 (fr) | 2002-02-15 | 2003-02-12 | Utilisation de bandes minces en alliage aluminium-fer |
Country Status (11)
Country | Link |
---|---|
US (1) | US20050207934A1 (pt) |
EP (1) | EP1483422B1 (pt) |
AT (1) | ATE392489T1 (pt) |
AU (1) | AU2003226882A1 (pt) |
BR (1) | BR0307633A (pt) |
CA (1) | CA2475700A1 (pt) |
DE (1) | DE60320387T2 (pt) |
FR (1) | FR2836154B1 (pt) |
NO (1) | NO20043388L (pt) |
RU (1) | RU2004127592A (pt) |
WO (1) | WO2003069003A2 (pt) |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2857981A1 (fr) * | 2003-07-21 | 2005-01-28 | Pechiney Rhenalu | FEUILLES OU BANDES MINCES EN ALLIAGES AIFeSI |
DE602006004594D1 (de) † | 2005-06-29 | 2009-02-12 | Novelis Inc | Folie aus aluminiumlegierung und verfahren zu deren herstellung |
US20100084053A1 (en) * | 2008-10-07 | 2010-04-08 | David Tomes | Feedstock for metal foil product and method of making thereof |
FR2957280B1 (fr) | 2010-03-12 | 2012-07-13 | Centre Nat Rech Scient | Procede de fabrication d'un complexe metallique |
ES2655296T3 (es) | 2014-07-09 | 2018-02-19 | Hydro Aluminium Rolled Products Gmbh | Uso de una aleación de aluminio o de un producto plano de aluminio a partir de una tal aleación para un componente de material compuesto de aluminio-plástico |
EP3235916B1 (de) | 2016-04-19 | 2018-08-15 | Rheinfelden Alloys GmbH & Co. KG | Gusslegierung |
JP7153469B2 (ja) * | 2018-05-29 | 2022-10-14 | 株式会社Uacj | 成形性、強度及び外観品質に優れたアルミニウム合金板及びその製造方法 |
EP4015658A1 (de) * | 2020-12-18 | 2022-06-22 | Speira GmbH | Aluminiumfolie mit verbesserter barriereeigenschaft |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE58905829D1 (de) * | 1988-09-27 | 1993-11-11 | Alusuisse Lonza Services Ag | Kathodenfolie für Elektrolytkondensatoren. |
US5380379A (en) * | 1993-08-18 | 1995-01-10 | Alcoa Aluminio Do Nordeste S.A. | Aluminum foil product and manufacturing method |
GB9405415D0 (en) * | 1994-03-18 | 1994-05-04 | Alcan Int Ltd | Aluminium foil |
FR2763602B1 (fr) * | 1997-05-20 | 1999-07-09 | Pechiney Rhenalu | Procede de fabrication de bandes en alliages d'aluminium par coulee continue mince entre cylindres |
-
2002
- 2002-02-15 FR FR0201959A patent/FR2836154B1/fr not_active Expired - Fee Related
-
2003
- 2003-02-12 WO PCT/FR2003/000452 patent/WO2003069003A2/fr active IP Right Grant
- 2003-02-12 EP EP03739530A patent/EP1483422B1/fr not_active Expired - Lifetime
- 2003-02-12 BR BR0307633-4A patent/BR0307633A/pt not_active Application Discontinuation
- 2003-02-12 AT AT03739530T patent/ATE392489T1/de not_active IP Right Cessation
- 2003-02-12 AU AU2003226882A patent/AU2003226882A1/en not_active Abandoned
- 2003-02-12 RU RU2004127592/02A patent/RU2004127592A/ru not_active Application Discontinuation
- 2003-02-12 DE DE60320387T patent/DE60320387T2/de not_active Expired - Lifetime
- 2003-02-12 CA CA002475700A patent/CA2475700A1/fr not_active Abandoned
- 2003-02-12 US US10/502,809 patent/US20050207934A1/en not_active Abandoned
-
2004
- 2004-08-13 NO NO20043388A patent/NO20043388L/no not_active Application Discontinuation
Also Published As
Publication number | Publication date |
---|---|
NO20043388L (no) | 2004-11-15 |
WO2003069003A2 (fr) | 2003-08-21 |
FR2836154A1 (fr) | 2003-08-22 |
AU2003226882A1 (en) | 2003-09-04 |
ATE392489T1 (de) | 2008-05-15 |
DE60320387D1 (de) | 2008-05-29 |
BR0307633A (pt) | 2005-01-11 |
DE60320387T2 (de) | 2008-08-07 |
EP1483422A2 (fr) | 2004-12-08 |
WO2003069003A3 (fr) | 2004-03-25 |
FR2836154B1 (fr) | 2004-10-22 |
CA2475700A1 (fr) | 2003-08-21 |
RU2004127592A (ru) | 2005-05-10 |
US20050207934A1 (en) | 2005-09-22 |
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