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EP2657360B1 - Alliage à coulée sous pression à base d'Al-Si présentant en particulier un aluminium secondaire - Google Patents

Alliage à coulée sous pression à base d'Al-Si présentant en particulier un aluminium secondaire Download PDF

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Publication number
EP2657360B1
EP2657360B1 EP12165829.8A EP12165829A EP2657360B1 EP 2657360 B1 EP2657360 B1 EP 2657360B1 EP 12165829 A EP12165829 A EP 12165829A EP 2657360 B1 EP2657360 B1 EP 2657360B1
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Prior art keywords
die
casting alloy
alloy
weight
casting
Prior art date
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EP12165829.8A
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German (de)
English (en)
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EP2657360A1 (fr
Inventor
Jan Hauck
Marc Hummel
Helmut SUPPAN
Holm BÖTTCHER
Werner FRAGNER
Peter Prof. Dr. Uggowitzer
Dominik Bösch
Heinz Werner HÖPPEL
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 CASTING GmbH
Audi AG
Original Assignee
AMAG casting GmbH
Audi AG
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Filing date
Publication date
Priority to SI201230032T priority Critical patent/SI2657360T1/sl
Application filed by AMAG casting GmbH, Audi AG filed Critical AMAG casting GmbH
Priority to ES12165829.8T priority patent/ES2466345T3/es
Priority to EP12165829.8A priority patent/EP2657360B1/fr
Priority to PL12165829T priority patent/PL2657360T3/pl
Priority to US14/396,810 priority patent/US20150098859A1/en
Priority to PCT/EP2013/057521 priority patent/WO2013160108A2/fr
Priority to CA2871260A priority patent/CA2871260C/fr
Priority to CN201380022231.6A priority patent/CN104350165B/zh
Publication of EP2657360A1 publication Critical patent/EP2657360A1/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
    • C22C21/02—Alloys based on aluminium with silicon as the next major constituent
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D21/00—Casting non-ferrous metals or metallic compounds so far as their metallurgical properties are of importance for the casting procedure; Selection of compositions therefor
    • B22D21/002—Castings of light metals
    • B22D21/007—Castings of light metals with low melting point, e.g. Al 659 degrees C, Mg 650 degrees C
    • 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
    • C22C21/04—Modified aluminium-silicon alloys

Definitions

  • the invention relates to a die-casting alloy based on Al-Si, comprising in particular secondary aluminum.
  • Inexpensive die-cast alloys can be obtained, for example, from aluminum scrap, but as a rule they disadvantageously contain undesirably high impurities, in the form of iron, copper and zinc alloy fractions (US Pat. EP1111077A1 ). This not only leads to a reduced ductility potential but can also have negative effects on the strength and quench sensitivity of the diecasting alloy.
  • Various measures for mutual weighting of the alloying elements, as well as various proposals for alloys are known from the prior art - in particular in order to compensate for the negative influences of the impurities.
  • the DE102004013777B4 proposes a casting alloy with 5 to 18 wt .-% Si, with 0.15 to 0.45 wt .-% Mn, with 0.2 to 0.6 wt .-% Fe, with 0.3 to 0.5 wt % Mg, with possibly 0.1 to 0.5% by weight of Cu and with 4 to 5% by weight of Zn.
  • the content of a maximum of 0.5% by weight of magnesium should avoid the formation of Mg-Fe-'pi 'phases in order to obtain the ductility.
  • Cu is said to improve the heat resistance of the alloy, with the content of zinc being limited to 4 to 5% by weight so as to adjust the strength and quenching sensitivity of the alloy.
  • the DE102009012073A1 with secondary aluminum - due to the comparatively low lower limits of permissible Cu and Zn contents, the range of usable secondary aluminum is comparatively limited.
  • such a composition can not provide comparatively high strength, ductility and castability, especially since Zn as an impurity should be limited to a small extent.
  • Zn content in the diecasting alloy is to be kept below 0.05% by weight.
  • this die-casting alloy should be able to ensure both die casting and complex demoulding as well as excellent mold release, as well as offering excellent processability in the components produced from it.
  • the invention solves the task by the fact that the die-cast alloy 6 to 12 % By weight of silicon (Si), at least 0.3 % By weight of iron (Fe), at least 0.25 Wt .-% manganese (Mn), at least 0.1 Wt.% Copper (Cu), 0.24 to 0.8 Wt .-% magnesium (Mg) and 0.40 to 1.5 Wt .-% zinc (Zn) has and that the die-cast alloy 50 to 300 ppm strontium (Sr) and / or 20 to 250 ppm sodium (Na) and / or 20 to 350 ppm antimony (Sb), and at least one of the following components maximum 0.2 % By weight of titanium (Ti); maximum 0.3 % By weight zirconium; maximum 0.3 % By weight of vanadium (V); and the remainder being aluminum and having unavoidable impurities due to production, the total proportion of Fe and Mn in the die-cast alloy together being a maximum of 1.5% by weight, the quotient of the percentages by
  • a low-cost die-casting alloy can be provided on Al-Si basis, because essentially reduces the proportion of primary aluminum or . even refrained from it or that secondary aluminum can be used increased for the production of castings.
  • the alloy constituents of the casting alloy are forced into specific content limits in order to approximate the parameters known from primary aluminum (eg strength values, ductility values, chemical reaction stability, processability and / or castability).
  • ⁇ -phase eg: Al 5 FeSilAl 8.9 Fe 2 Si 2
  • the ⁇ -phase eg: Al 5 FeSilAl 8.9 Fe 2 Si 2
  • the ⁇ -phase may be present as Al 15 (FeMn) 3 Si 2 due to the manganese content of at least 0.25 wt .-% according to the invention.
  • This ⁇ -phase crystallizes in globulitic form and, due to its compact structure, can have a significantly more favorable influence on the ductility than is known from the acicular ⁇ -phases.
  • a diecasting alloy with a comparatively high ductility can thus be ensured.
  • the total content of Fe and Mn on the die casting alloy is limited to a maximum of 1.5% by weight, the formation of coarse ⁇ phases can be further reduced, even if the high cooling rates usually used in die casting processes are used.
  • the concentration requirements for Fe and Mn can therefore be particularly beneficial to the ductility of the diecasting alloy.
  • the existing copper in the preferably forming Q phase (Al 5 Cu 2 Mg 8 Si 6 ) are bound.
  • This concentration rule can therefore prevent the formation of corrosion-prone phases, such as the Tao phase (Al 5 Cu 4 Zn) or the theta phase (Al 2 Cu) in the microstructure, so that despite comparatively high weight percent of Cu, which according to the invention is used to improve the hot curing of the diecasting alloy, also a high corrosion resistance can be maintained.
  • this excess magnesium can improve the curing mechanism of the alloy because part of the Mg is bound in the Q phase (Al 5 Cu 2 M 98 Si 6 ) and thus overcome known limitations due to excessive precipitation of Set Mg 2 Si pre-phases.
  • the concentration requirements for Cu and Mg can therefore satisfy particularly high demands of the diecasting alloy in terms of strength and chemical reaction resistance.
  • the proposed concentration ratio of Cu and Mg improved the processability, for example with regard to the weldability and rivability of components made from this diecasting alloy.
  • the introduction and / or adjustment of the aforementioned magnesium excess over Cu can also be used to bind the increased Fe content of the diecasting alloy in a pi phase (Al 8 FeMg 3 Si 6 ).
  • the ductility affecting ⁇ -phase eg: Al 5 FeSi / Al 8.9 Fe 2 Si 2
  • the Mn content in the diecasting alloy can also be reduced because the pi phase (eg: Al 8 FeMg 3 Si 6 ) can be used to take up Fe.
  • Die casting problems usually to be accepted due to an increased Mn content to compensate for Fe effects, can thus be reduced. A complex deformation as well as an excellent releasability can be ensured by the special content limits of Mg, Fe, Mn in connection with their concentration requirements.
  • the strength of the alloy for example coined by an interaction of the pre-phases Mg 2 Si and Q-phase (Al 5 Cu 2 Mg 8 Si 6 ), can be determined by solid-solution hardening be further improved with the help of a zinc deposit.
  • zinc should be adjusted in the content limits of 0.40 to 1.5 wt .-%.
  • this may be beneficial to the ductility of the diecasting alloy.
  • the content limits of Zn according to the invention may be distinguished in improving the castability of the die-cast alloy, whereby adverse effects due to the proposed content limits of Mn in the diecasting alloy can be largely compensated.
  • the Al-Si-based die-casting alloy balanced in the alloy components Fe, Mn, Cu, Mg and Zn can combine a comparatively high ductility, corrosion resistance, strength, castability and processability, thus overcoming parameter boundaries known from the prior art even if the die-cast alloy has secondary aluminum and / or is added to it or thereby leads to comparatively high levels of impurities.
  • the die casting alloy may have 50 to 300 ppm strontium (Sr) and / or 20 to 250 ppm sodium (Na) and / or 20 to 350 ppm antimony (Sb).
  • Sr strontium
  • Na sodium
  • SB antimony
  • at most 0.2% by weight of titanium (Ti) and / or at most 0.3% by weight of zirconium and / or at most 0.3% by weight of vanadium (V) may prove to be advantageous.
  • the die-cast alloy can be supplemented in each case to 100% by weight with Al, and this die-casting alloy can also lead to unavoidable impurities due to its production.
  • the die-cast alloy can have impurities of not more than 0.1% by weight and not more than 1% by weight in total.
  • Strength, ductility, processability, and chemical reaction resistance of the die-cast alloy can be further improved when they contain 0.3 to 1.0 wt% Fe (Fe), 0.25 to 1.0 wt% Manganese (Mn), and 0 , 1 to 0.6 wt .-% copper (Cu).
  • the diecast alloy meets the order relation in its composition weight , - % mg > 0 . 2 + 0 . 12 ⁇ weight , - % Fe / weight , - % Mn a simple procedure for increasing the proportion of pi-phase (eg: Al 8 FeMg 3 Si 6 ) in the structure of the die-cast alloy can be given. Increased Fe contents can thus be compensated, whereby the best castability of the die-cast alloy can be maintained with a reduced Mn content.
  • this pi-phase can be converted with a solution annealing into a harmless for the required properties of the die-cast alloy ⁇ -phase.
  • the die cast alloy can be further improved in terms of achievable ductility, strength and corrosion resistance, if the total content of Fe and Mn together on the die-cast alloy together maximally 1.2 wt .-%, the quotient of the weight percentages of Fe and Mn 0.5 to 1 , 25 and the quotient of the weight percent of Cu and Mg is 0.2 to 0.5.
  • the die casting alloy has 9.5 to 11.5 wt.% Silicon (Si) and / or 0.35 to 0.6 wt.% Iron (Fe) and / or 0.3 to 0.75 wt.
  • Manganese (Mn) and / or 0.1 to 0.4% by weight of copper (Cu) and / or 0.24 to 0.5% by weight of magnesium (Mg) and / or 0.40 to 1.0 Zinc (Zn) results in narrower limits for an improved Al-Si based through-casting alloy in its mechanical and / or chemical resistance.
  • the proposed content of Si improves the flow properties of the melt and that brittle primary silicon phases can be avoided. This also makes it possible to pressure-mold even comparatively thin-walled components. 9.5 to 11.5% by weight of silicon (Si) may prove to be particularly advantageous for this purpose.
  • Alloy 1 is a die cast alloy of low contamination primary aluminum.
  • Alloy 2 shows a considerable degree of impurities in iron and copper alloy fractions, which can be introduced, for example, by secondary aluminum.
  • concentration ratios for a diecasting alloy proposed according to the invention make it possible to ensure comparatively high ductility, corrosion resistance, strength, castability and processability.

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Mounting, Exchange, And Manufacturing Of Dies (AREA)
  • Molds, Cores, And Manufacturing Methods Thereof (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)
  • Conductive Materials (AREA)
  • Extrusion Of Metal (AREA)

Claims (10)

  1. Alliage pour moulage sous pression à base d'aluminium et de silicium, contenant en particulier de l'aluminium secondaire, caractérisé en ce que
    l'alliage pour moulage sous pression contient de 6 à 12 % en poids de silicium (Si), au moins 0,3 % en poids de fer (Fe), au moins 0,25 % en poids de manganèse (Mn), au moins 0,1 % en poids de cuivre (Cu), de 0,24 à 0,8 % en poids de magnésium (Mg) et de 0,40 à 1,5 % en poids de zinc (Zn)
    et en ce que l'alliage pour moulage sous pression contient de 50 à 300 ppm de strontium (Sr) et/ou de 20 à 250 ppm de sodium (Na) et/ou de 20 à 350 ppm d'antimoine (Sb),
    ainsi qu'au moins un des éléments suivants, à raison de au maximum 0,2 % en poids de titane (Ti) ; au maximum 0,3 % en poids de zirconium (Zr) ; au maximum 0,3 % en poids de vanadium (V),
    le reste étant de l'aluminium ainsi que des impuretés inévitables dans la fabrication,
    la proportion totale de Fe et Mn additionnés dans l'alliage pour moulage sous pression représentant au maximum 1,5 % en poids, le quotient des pourcentages en poids de Fe et Mn étant de 0,35 à 1,5 et le quotient des pourcentages en poids de Cu et Mg étant de 0,2 à 0,8.
  2. Alliage pour moulage sous pression selon la revendication 1, caractérisé en ce que l'alliage pour moulage sous pression contient de 0,3 à 1,0 % en poids de fer (Fe), de 0,25 à 1,0 % en poids de manganèse (Mn) et de 0,1 à 0,6 % en poids de cuivre (Cu).
  3. Alliage pour moulage sous pression selon la revendication 1 ou 2, caractérisé en ce que l'alliage pour moulage sous pression respecte dans sa composition la relation d'ordre : % en poids de Mg > 0 , 2 + 0 , 12 × % en poids de Fe / % en poids de Mn .
    Figure imgb0004
  4. Alliage pour moulage sous pression selon la revendication 1, 2 ou 3, caractérisé en ce que la proportion totale de Fe et Mn additionnés dans l'alliage pour moulage sous pression est au maximum de 1,2 % en poids, le quotient des pourcentages en poids de Fe et Mn est de 0,5 à 1,25 et le quotient des pourcentages en poids de Cu et Mg est de 0,2 à 0,5.
  5. Alliage pour moulage sous pression selon l'une des revendications 1 à 4, caractérisé en ce que l'alliage pour moulage sous pression contient entre 9,5 et 11,5 % en poids de silicium (Si).
  6. Alliage pour moulage sous pression selon l'une des revendications 1 à 5, caractérisé en ce que l'alliage pour moulage sous pression contient entre 0,35 et 0,6 % en poids de fer (Fe).
  7. Alliage pour moulage sous pression selon l'une des revendications 1 à 6, caractérisé en ce que l'alliage pour moulage sous pression contient entre 0,3 et 0,75 % en poids de manganèse (Mn).
  8. Alliage pour moulage sous pression selon l'une des revendications 1 à 7, caractérisé en ce que l'alliage pour moulage sous pression contient entre 0,1 et 0,4 % en poids de cuivre (Cu).
  9. Alliage pour moulage sous pression selon l'une des revendications 1 à 8, caractérisé en ce que l'alliage pour moulage sous pression contient entre 0,24 et 0,5 % en poids de magnésium (Mg).
  10. Alliage pour moulage sous pression selon l'une des revendications 1 à 9, caractérisé en ce que l'alliage pour moulage sous pression contient entre 0,40 et 1,0 % en poids de zinc (Zn).
EP12165829.8A 2012-04-26 2012-04-26 Alliage à coulée sous pression à base d'Al-Si présentant en particulier un aluminium secondaire Active EP2657360B1 (fr)

Priority Applications (8)

Application Number Priority Date Filing Date Title
ES12165829.8T ES2466345T3 (es) 2012-04-26 2012-04-26 Aleación de colada a presión a base de Al-Si que presenta, en particular, aluminio secundario
EP12165829.8A EP2657360B1 (fr) 2012-04-26 2012-04-26 Alliage à coulée sous pression à base d'Al-Si présentant en particulier un aluminium secondaire
PL12165829T PL2657360T3 (pl) 2012-04-26 2012-04-26 Stop na bazie Al-Si odlewany pod ciśnieniem, zawierający zwłaszcza aluminium wtórne
SI201230032T SI2657360T1 (sl) 2012-04-26 2012-04-26 Zlitina za tlačno litje na osnovi Al-Si, ki obsega še zlasti sekundarni aluminij
US14/396,810 US20150098859A1 (en) 2012-04-26 2013-04-10 Diecasting alloy based on al-si, comprising particularly secondary aluminum
PCT/EP2013/057521 WO2013160108A2 (fr) 2012-04-26 2013-04-10 Alliage de coulée sous pression à base d'al-si, contenant en particulier de l'aluminium secondaire
CA2871260A CA2871260C (fr) 2012-04-26 2013-04-10 Alliage de coulee sous pression a base d'al-si, contenant en particulier de l'aluminium secondaire
CN201380022231.6A CN104350165B (zh) 2012-04-26 2013-04-10 具有特别是再生铝的、基于铝‑硅的压铸合金

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Application Number Priority Date Filing Date Title
EP12165829.8A EP2657360B1 (fr) 2012-04-26 2012-04-26 Alliage à coulée sous pression à base d'Al-Si présentant en particulier un aluminium secondaire

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EP2657360A1 EP2657360A1 (fr) 2013-10-30
EP2657360B1 true EP2657360B1 (fr) 2014-02-26

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US (1) US20150098859A1 (fr)
EP (1) EP2657360B1 (fr)
CN (1) CN104350165B (fr)
CA (1) CA2871260C (fr)
ES (1) ES2466345T3 (fr)
PL (1) PL2657360T3 (fr)
SI (1) SI2657360T1 (fr)
WO (1) WO2013160108A2 (fr)

Cited By (3)

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Publication number Priority date Publication date Assignee Title
EP3342888A1 (fr) 2016-12-28 2018-07-04 Befesa Aluminio, S.L. Alliage de fonderie d'aluminium
EP3342890A1 (fr) 2016-12-28 2018-07-04 Befesa Aluminio, S.L. Alliage de fonderie d'aluminium
EP3342889A1 (fr) 2016-12-28 2018-07-04 Befesa Aluminio, S.L. Alliage de fonderie d'aluminium

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US20170107599A1 (en) 2015-10-19 2017-04-20 GM Global Technology Operations LLC New high pressure die casting aluminum alloy for high temperature and corrosive applications
CN105624479B (zh) * 2015-11-26 2017-10-03 新疆众和股份有限公司 一种焊接用铝硅系合金杆及其生产方法
EP3235917B1 (fr) 2016-04-19 2018-08-15 Rheinfelden Alloys GmbH & Co. KG Alliage d'aluminium pour moulage sous pression
EP3235916B1 (fr) 2016-04-19 2018-08-15 Rheinfelden Alloys GmbH & Co. KG Alliage de moulage
US20180010214A1 (en) * 2016-07-05 2018-01-11 GM Global Technology Operations LLC High strength high creep-resistant cast aluminum alloys and hpdc engine blocks
WO2018185259A1 (fr) * 2017-04-05 2018-10-11 Amag Casting Gmbh Matériau de départ, son utilisation et procédé de fabrication additive utilisant ce matériau de départ
CN107858565A (zh) * 2017-12-13 2018-03-30 浙江诺达信汽车配件有限公司 一种高强高韧性的压铸用铝合金材料
US12163206B2 (en) * 2018-10-29 2024-12-10 Fna Group, Inc. Aluminum alloy
CN111139371A (zh) * 2018-11-06 2020-05-12 临沂利信铝业有限公司 一种绿色低成本再生铝合金制备方法及装备
CN110106458B (zh) * 2019-04-30 2020-06-19 中国科学院合肥物质科学研究院 一种锻造态锰铜减振合金的热处理方法
CN110541094A (zh) * 2019-09-30 2019-12-06 中信戴卡股份有限公司 一种压铸铝合金及车用部件
JP7270056B2 (ja) * 2019-10-01 2023-05-09 株式会社アーレスティ アルミニウム合金ダイカスト、ダイカストユニット及びその製造方法
CN111004947B (zh) * 2019-11-25 2020-12-22 连云港星耀材料科技有限公司 一种铝合金轮毂的制备方法
EP3825428B1 (fr) * 2019-11-25 2022-11-16 AMAG casting GmbH Composant moulé sous pression et procédé de fabrication d'un composant moulé sous pression
DE102020100688A1 (de) * 2020-01-14 2021-07-15 Audi Aktiengesellschaft Verfahren zum Herstellen einer Kraftwagenfelge aus einer Aluminiumlegierung für ein Rad eines Kraftfahrzeugs sowie entsprechende Kraftwagenfelge
US20230002863A1 (en) * 2021-07-02 2023-01-05 Magna International Inc. Low cost high ductility cast aluminum alloy
CN116555637A (zh) * 2022-01-28 2023-08-08 通用汽车环球科技运作有限责任公司 具有定制的机械和腐蚀性质的部件
CN115161521B (zh) * 2022-07-14 2023-09-08 山西瑞格金属新材料有限公司 一种免热处理压铸铝硅锌合金
DE102023114500A1 (de) 2023-06-02 2024-12-05 Audi Aktiengesellschaft Verfahren zum Herstellen einer Aluminium-Druckgusslegierung mit Sekundäraluminiumanteil, Aluminium-Druckgusslegierung mit Sekundäraluminiumanteil sowie Strukturbauteil für ein Kraftfahrzeug
EP4575025A1 (fr) 2023-12-22 2025-06-25 Fundación Tecnalia Research & Innovation Alliage de coulée d'aluminium à plusieurs composants

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3342888A1 (fr) 2016-12-28 2018-07-04 Befesa Aluminio, S.L. Alliage de fonderie d'aluminium
EP3342890A1 (fr) 2016-12-28 2018-07-04 Befesa Aluminio, S.L. Alliage de fonderie d'aluminium
EP3342889A1 (fr) 2016-12-28 2018-07-04 Befesa Aluminio, S.L. Alliage de fonderie d'aluminium

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Publication number Publication date
CN104350165B (zh) 2017-06-16
CA2871260C (fr) 2020-09-22
SI2657360T1 (sl) 2014-07-31
CA2871260A1 (fr) 2013-10-31
WO2013160108A3 (fr) 2013-12-19
ES2466345T3 (es) 2014-06-10
EP2657360A1 (fr) 2013-10-30
CN104350165A (zh) 2015-02-11
US20150098859A1 (en) 2015-04-09
WO2013160108A2 (fr) 2013-10-31
PL2657360T3 (pl) 2014-09-30

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