EP2924136B9 - Procédé de fabrication d'une tôle d'architecture et tôle d'aluminium correspondante - Google Patents

Procédé de fabrication d'une tôle d'architecture et tôle d'aluminium correspondante Download PDF

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Publication number
EP2924136B9
EP2924136B9 EP14162503.8A EP14162503A EP2924136B9 EP 2924136 B9 EP2924136 B9 EP 2924136B9 EP 14162503 A EP14162503 A EP 14162503A EP 2924136 B9 EP2924136 B9 EP 2924136B9
Authority
EP
European Patent Office
Prior art keywords
sheet
aluminium
layer
plating
aluminium sheet
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.)
Active
Application number
EP14162503.8A
Other languages
German (de)
English (en)
Other versions
EP2924136B1 (fr
EP2924136A1 (fr
Inventor
Georg Priewasser
Markus Michael Botta
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.)
Amag Rolling GmbH
Original Assignee
Amag Rolling GmbH
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Amag Rolling GmbH filed Critical Amag Rolling GmbH
Priority to EP14162503.8A priority Critical patent/EP2924136B9/fr
Priority to PCT/EP2015/056818 priority patent/WO2015144927A1/fr
Publication of EP2924136A1 publication Critical patent/EP2924136A1/fr
Publication of EP2924136B1 publication Critical patent/EP2924136B1/fr
Application granted granted Critical
Publication of EP2924136B9 publication Critical patent/EP2924136B9/fr
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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
    • C22C21/06—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
    • 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
    • C22F1/047—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 magnesium as the next major constituent

Definitions

  • the invention relates to an aluminum sheet for producing an architectural sheet, in particular cladding, with an aluminum alloy core layer having an AIMg base, in particular the AA5xxx series, and having at least one aluminum alloy cladding layer coated on one side of the core layer with an AIMg base , in particular of an AA5005 aluminum alloy.
  • the invention achieves the stated object with regard to the aluminum sheet in that the cladding layer contains 0.85 to 0.95% by weight of magnesium (Mg), 0.03 to 0.06% by weight. Silicon (Si), 0.15 to 0.20% by weight iron (Fe), 0.08 to 0.12% by weight copper (Cu), 0.08 to 0.12% by weight manganese ( Mn) and the balance aluminum and production-related unavoidable impurities.
  • Mg magnesium
  • Si silicon
  • Fe iron
  • Cu 0.08 to 0.12% by weight
  • Mn manganese
  • the plating layer has 0.03 to 0.06% by weight of silicon (Si), 0.15 to 0.20% by weight of iron (Fe) and 0.85 to 0.95% by weight of magnesium (Mg)
  • Si silicon
  • Fe iron
  • Mg magnesium
  • their content of Fe and / or Si-containing Mg intermetallic phases can be kept low in order to reduce the formation of turbidity of an anodized layer.
  • a comparatively high degree of gloss of the architectural sheet can be ensured.
  • due to the low Si and Fe content due to the low Si and Fe content, their proportion in the anodized layer can also remain low, as a result of which reduced scattering effects and undesired color reflections on the architectural sheet can be avoided.
  • the cladding layer may contain aluminum as the remainder and impurities which may be unavoidable due to the production, without any negative effect on the technical effects described above.
  • the plating layer can have impurities of not more than 0.05% by weight and not more than 0.15% by weight in total.
  • the architectural sheet is understood to be sheets and / or tapes used in architecture.
  • facades of buildings are clad, which architectural sheets in a row are also usually called cladding.
  • a cladding layer could be detected with a layer thickness of 5 to 20% of the total sheet thickness of the aluminum sheet.
  • an aluminum sheet with a sheet thickness of 0.5 to 6 mm can be distinguished.
  • the core layer has 2.0 to 2.5% by weight of magnesium (Mg), sufficient strength can be provided for the architectural sheet. In addition, it can be achieved with a high corrosion resistance.
  • Mg magnesium
  • the aluminum sheet may also have a comparatively high mechanical strength, if the core layer consists of an AA5049 aluminum alloy. Further, such an AA5049 core layer can allow a comparatively high utilization degree of secondary aluminum, whereby cost advantages in the production of the aluminum sheet can be achieved. For the sake of completeness, it is mentioned that as secondary aluminum aluminum or an aluminum alloy, obtained from aluminum scrap, can be understood.
  • the core layer has a roll-coated cladding layer on both sides, this can be advantageous in the production of an architectural sheet.
  • the invention may be characterized when the above-mentioned aluminum sheet is used as architectural sheet, in particular cladding sheet, wherein the cladding layer is provided with an anodized layer.
  • the invention achieves the stated object in that the core sheet with a cladding sheet comprising 0.85 to 0.95 wt .-% magnesium (Mg), 0.03 to 0.06 wt .-% silicon (Si), 0.15 to 0.20% by weight of iron (Fe), 0.08 to 0.12% by weight of copper (Cu), 0.08 to 0.12% by weight of manganese (Mn), and the remainder being aluminum as well Due to production unavoidable impurities is roll-plated.
  • Mg magnesium
  • Si silicon
  • Fe iron
  • Cu copper
  • Mn manganese
  • a composite sheet or cladding sheet with constant quality can be produced.
  • Si, Fe and Mg can be kept within narrow tolerance limits, whereby an anodized cladding layer can have a high degree of gloss and a neutral color impression.
  • Cu namely, from 0.08 to 0.12 wt%, and Mn, from 0.08 to 0.12 wt%, can be set in the plating layer, reproducibly the same color tone at Facade sheet can allow.
  • the method according to the invention can thus reproducibly create a sheet with particularly good suitability for a subsequent electrolytic oxidation process.
  • the cladding sheet has an AlMgCuMn base.
  • High gloss levels on the architectural sheet can be ensured by the method according to the invention if the cladding layer has a layer thickness of 5 to 20% of the total sheet thickness of the aluminum sheet after roll cladding. In particular 7 to 15% can lead to unusually high degrees of gloss on the aluminum sheet.
  • the alloys may have production-related per impurities, each with a maximum of 0.05 wt .-% and a total of at most 1 wt .-%.
  • the method can be facilitated in its handling, if the aluminum sheet has a plate thickness of 0.5 to 6 mm after roll-plating.
  • the core layer has 2.0 to 2.5% by weight of magnesium (Mg), roll cladding can be facilitated and thus the reproducibility of the process can be increased.
  • Mg magnesium
  • the process costs can be further reduced by roll-laminating an AA5049 core sheet with a clad sheet, especially as the core layer can allow an increased level of secondary aluminum.
  • Façade panel 1 is an AA5049 core panel which is roll-formed on one side with a conventional AA5005 clad panel.
  • the AA5049 core sheet with the cladding sheet according to the invention comprising 0.03 to 0.06 wt.% Silicon (Si), 0.15 to 0.20 wt.% Iron (Fe) , 0.08 to 0.12 wt .-% copper (Cu), 0.08 to 0.12 wt .-% manganese (Mn), 0.85 to 0.95 wt .-% magnesium (Mg) and as Remainder of aluminum as well as production-related unavoidable impurities, roll-clad.
  • the layer thickness of the plating layer was about 10% of the total sheet thickness. Both semi-finished products, each with a total sheet thickness of about 4 mm, were then subjected to an anodizing process to create a cladding sheet.
  • the finished facade panels 1 and 2 were finally examined for their properties.
  • the degree of gloss and the color impression measured over a viewing angle of 1 to 60 degrees were measured with the aid of a color and gloss meter according to ISO 7668 at an angle of 60 degrees.
  • the measured values obtained are summarized in Table 2.
  • composition according to the invention of the cladding layer or its anodized layer has a diffuse color which, on the one hand, is relatively close to the chromatic point and, on the other hand, relatively close to the intrinsic color, determined by the Cu and Mg content of the cladding layer, and thus has no influence on the natural one Color of the facade sheet takes.
  • Compared to the facade panel 1 could be avoided as a color glimmer, which moved to the facade panel 1 under extreme observation angles down to the green.
  • the facade panel 2 was distinguished from the facade panel 1 with an increased gloss level, as shown in Table 2.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Finishing Walls (AREA)
  • Laminated Bodies (AREA)

Claims (12)

  1. Tôle d'aluminium pour la fabrication d'une tôle d'architecture, en particulier d'une tôle de façade, avec une couche centrale faite d'un alliage d'aluminium à base d'AlMg, en particulier de la série AA5xxx, et avec au moins une couche de placage plaquée par laminage sur un côté de la couche centrale et faite d'un alliage d'aluminium à base d'AlMg, en particulier d'un alliage d'aluminium AA5005, caractérisée en ce que la couche de placage contient de 0,85 à 0,95 % en poids de magnésium (Mg), de 0,03 à 0,06 % en poids de silicium (Si), de 0,15 à 0,20 % en poids de fer (Fe), de 0,08 à 0,12 % en poids de cuivre (Cu), de 0,08 à 0,12 % en poids de manganèse (Mn) et
    de l'aluminium pour le reste, ainsi que les impuretés inévitables inhérentes à la fabrication.
  2. Tôle d'aluminium selon la revendication 1, caractérisée en ce que la couche de placage présente une épaisseur de couche de 5 à 20 %, en particulier de 7 à 15 % de l'épaisseur totale de la tôle d'aluminium.
  3. Tôle d'aluminium selon la revendication 1 ou 2, caractérisée en ce que la tôle d'aluminium présente une épaisseur de 0,5 à 6 mm.
  4. Tôle d'aluminium selon la revendication 1, 2 ou 3, caractérisée en ce que la couche centrale contient de 2,0 à 2,5 % en poids de magnésium (Mg).
  5. Tôle d'aluminium selon la revendication 4, caractérisée en ce que la couche centrale se compose d'un alliage d'aluminium AA5049.
  6. Tôle d'aluminium selon l'une des revendications 1 à 5, caractérisée en ce que la couche centrale présente une couche de placage plaquée par laminage sur ses deux faces.
  7. Tôle d'architecture, en particulier tôle de façade, avec une tôle d'aluminium selon l'une des revendications 1 à 6, dans laquelle la couche de placage est munie d'une couche anodisée.
  8. Procédé pour la fabrication d'une tôle d'architecture, en particulier d'une tôle de façade, dans lequel une couche centrale faite d'un alliage d'aluminium à base d'AlMg, en particulier de la série AA5xxx, est plaquée par laminage avec au moins une tôle de placage faite d'un alliage d'aluminium à base d'AlMg, en particulier d'un alliage d'aluminium AA5005, et la tôle d'aluminium est ensuite anodisée, caractérisé en ce que la tôle centrale est plaquée par laminage avec une tôle de placage contenant de 0,85 à 0,95 % en poids de magnésium (Mg), de 0,03 à 0,06 % en poids de silicium (Si), de 0,15 à 0,20 % en poids de fer (Fe), de 0,08 à 0,12 % en poids de cuivre (Cu), de 0,08 à 0,12 % en poids de manganèse (Mn) et
    de l'aluminium pour le reste, ainsi que les impuretés inévitables inhérentes à la fabrication.
  9. Procédé selon la revendication 8, caractérisé en ce que la couche de placage présente après le placage par laminage une épaisseur de couche de 5 à 20 %, en particulier de 7 à 15%, de l'épaisseur totale de la tôle d'aluminium.
  10. Procédé selon la revendication 8 ou 9, caractérisé en ce que la tôle d'aluminium présente après le placage par laminage une épaisseur de tôle de 0,5 à 6 mm.
  11. Procédé selon la revendication 8, 9 ou 10, caractérisé en ce que la couche centrale contient de 2,0 à 2,5 % en poids de magnésium (Mg).
  12. Procédé selon la revendication 11, caractérisée en ce qu'une tôle centrale en AA5049 est plaquée par laminage avec une tôle de placage.
EP14162503.8A 2014-03-28 2014-03-28 Procédé de fabrication d'une tôle d'architecture et tôle d'aluminium correspondante Active EP2924136B9 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP14162503.8A EP2924136B9 (fr) 2014-03-28 2014-03-28 Procédé de fabrication d'une tôle d'architecture et tôle d'aluminium correspondante
PCT/EP2015/056818 WO2015144927A1 (fr) 2014-03-28 2015-03-27 Tôle architecturale, procédé de fabrication d'une tôle architecturale et tôle en aluminium pour celle-ci

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP14162503.8A EP2924136B9 (fr) 2014-03-28 2014-03-28 Procédé de fabrication d'une tôle d'architecture et tôle d'aluminium correspondante

Publications (3)

Publication Number Publication Date
EP2924136A1 EP2924136A1 (fr) 2015-09-30
EP2924136B1 EP2924136B1 (fr) 2016-11-16
EP2924136B9 true EP2924136B9 (fr) 2017-04-19

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ID=50442354

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EP14162503.8A Active EP2924136B9 (fr) 2014-03-28 2014-03-28 Procédé de fabrication d'une tôle d'architecture et tôle d'aluminium correspondante

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EP (1) EP2924136B9 (fr)
WO (1) WO2015144927A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR3116835B1 (fr) 2020-11-27 2023-04-14 Constellium Rolled Products Singen Tôle mince en alliage d’aluminium à grande ductilité

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4715901A (en) * 1983-09-19 1987-12-29 Aluminum Company Of America Architectural product
US20100316887A1 (en) * 2009-06-16 2010-12-16 Horst Dwenger Sheet product having an outer surface optimized for anodization
WO2012098060A1 (fr) * 2011-01-17 2012-07-26 Hydro Aluminium Rolled Products Gmbh Tôle en aluminium de grande rugosité de surface pour façades extérieures

Also Published As

Publication number Publication date
EP2924136B1 (fr) 2016-11-16
EP2924136A1 (fr) 2015-09-30
WO2015144927A1 (fr) 2015-10-01

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