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EP1234893B1 - Alliage coulée du type Al-Mg-Si - Google Patents

Alliage coulée du type Al-Mg-Si Download PDF

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Publication number
EP1234893B1
EP1234893B1 EP01810183A EP01810183A EP1234893B1 EP 1234893 B1 EP1234893 B1 EP 1234893B1 EP 01810183 A EP01810183 A EP 01810183A EP 01810183 A EP01810183 A EP 01810183A EP 1234893 B1 EP1234893 B1 EP 1234893B1
Authority
EP
European Patent Office
Prior art keywords
weight
silicon
magnesium
cast alloy
quasi
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
EP01810183A
Other languages
German (de)
English (en)
Other versions
EP1234893A1 (fr
Inventor
Reinhard Winkler
Günther Höllrigl
Jürgen Wüst
Klaus Währisch
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.)
3A Composites International AG
Original Assignee
Alcan Technology and Management Ltd
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
Priority to PT01810183T priority Critical patent/PT1234893E/pt
Priority to AT01810183T priority patent/ATE283380T1/de
Priority to EP01810183A priority patent/EP1234893B1/fr
Priority to DE50104594T priority patent/DE50104594D1/de
Priority to ES01810183T priority patent/ES2232584T3/es
Application filed by Alcan Technology and Management Ltd filed Critical Alcan Technology and Management Ltd
Priority to US10/072,448 priority patent/US6623570B2/en
Priority to CA002371318A priority patent/CA2371318C/fr
Publication of EP1234893A1 publication Critical patent/EP1234893A1/fr
Application granted granted Critical
Publication of EP1234893B1 publication Critical patent/EP1234893B1/fr
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
    • C22C21/06—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
    • 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
    • Y10S164/00—Metal founding
    • Y10S164/90—Rheo-casting

Definitions

  • the invention relates to a cast alloy of the AlMgSi type.
  • the casting alloy for die casting, Rheo and thixocasting, the use of cast alloy for manufacturing large-area and thin-walled components with high absorption capacity for kinetic energy through plastic deformation and use the cast alloy for the production of a component as a safety component in vehicle construction.
  • EP-A-0 792 380 is one for die casting, for rheo- and that Suitable for thixocasting of safety components used in vehicle construction Alloy of the type AIMgSiMn known.
  • the alloy points towards the an excess of magnesium corresponding to the quasi-binary eutectic on. Due to the high proportion of manganese, gluing is in the form avoided and good mold release guaranteed. Besides the alloy has a very low iron content.
  • the focus is on Ductility, that is to say the deformability and the ductile fracture by the elongation at break.
  • the firmness expressed by the Yield strength can take on relatively low values.
  • the invention has for its object to provide an aluminum alloy, with which there is also a high elongation at break with sufficient yield strength without performing a high temperature annealing subsequent water quenching can be achieved.
  • a cast alloy of the AlMgSi type leads to the achievement of the object according to the invention, which magnesium 3.0 to 7.0% by weight silicon 1.7 to 4.0% by weight manganese 0.2 to 0.48% by weight iron 0.15 to 0.35% by weight titanium Max. 0.2% by weight optionally still nickel 0.1 to 0.4% by weight and aluminum as the rest and manufacturing-related impurities individually max. 0.02% by weight, max. Contains 0.2% by weight, with the further proviso that magnesium and silicon in the alloy in a weight ratio Mg: Si of 1.7: 1 corresponding to the composition of the quasi-binary eutectic with the solid phases A1 and Mg 2 Si are present, the deviation from the exact composition corresponding to the quasi-binary eutectic for magnesium max. -0.5 to +0.3 wt .-% and for silicon - 0.3 to + 0.5 wt .-%.
  • the alloy according to the invention leads to an excretion behavior of the eutectic phase Mg 2 Si which is extremely favorable for ductility, which is extremely finely formed and evenly distributed, which ultimately results in a comparison with comparable alloys according to the prior art improved ductility.
  • Due to the higher iron content aluminum of lower purity can also be used as an alloy base, which reduces the production costs for the alloy.
  • the increased iron content also makes it possible to reduce the manganese additive used to reduce the tendency of the alloy to stick in the die.
  • magnesium and Silicon in the alloy essentially in a weight ratio of Mg: Si of 1.7: 1 according to the composition of the quasi-binary eutectic in front.
  • the optional addition of 0.1 to 0.4 wt% nickel leads to a further improvement the molding properties or reduction in the tendency to stick, whereby the manganese content of the alloy is kept at the lower range limit can be.
  • a type A heat treatment leads to a yield strength Rp 0.2 of up to 180 MPa and an elongation at break A5 of up to 13%. These strength and ductility properties cannot be achieved with the usual die-cast, rheo- and thixocasting alloys in the as-cast state, i.e. without heat treatment.
  • annealing between 380 and 460 ° C with subsequent cooling in air means that no further curing annealing is necessary. Due to the finely dispersed precipitation of the Mg 2 Si phase, ductility or shaping takes place even at an annealing temperature of less than 400 ° C.
  • the cast alloy according to the invention in a heat treatment state in accordance with type C is therefore a preferred variant, in particular for components with very high demands on the crash behavior. In addition to the fact that the components are only slightly warped when annealed below 400 ° C in combination with cooling in still air, this annealing can prevent bubbles from forming due to gas porosity at a relatively low temperature.
  • the cast alloy according to the invention is preferred used for die casting, rheo- and thixocasting.
  • the preferred field of application for the cast alloy according to the invention lies in the production of large-area and thin-walled components with high Absorption capacity for kinetic energy through plastic deformation. This Properties correspond to those of a safety component in vehicle construction requirements, which is why the alloy is used in particular for manufacturing of the safety components mentioned is suitable.
  • the optimal weight ratio Mg: Si of 1.7: 1 corresponding to the composition of the quasi-binary eutectic Al / Mg 2 Si is represented by the straight line E, the area of interest here for the magnesium content 3.0 to 7.0% by weight for the silicon content is 1.7 to 4.0% by weight.
  • the maximum permissible tolerance values for magnesium and silicon are defined by the two straight lines A1 and A2, the preferred tolerance limit values by the straight lines B1 and B2, with A1 and B1 relating to the eutectic composition of phases A1 and Mg 2 Si on the magnesium excess side, A2 and B2 are on the silicon excess side.
  • the cast alloy according to the invention has its larger tolerance range on the excess silicon side.

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Body Structure For Vehicles (AREA)
  • Refinement Of Pig-Iron, Manufacture Of Cast Iron, And Steel Manufacture Other Than In Revolving Furnaces (AREA)
  • Mold Materials And Core Materials (AREA)
  • Manufacture Of Alloys Or Alloy Compounds (AREA)
  • Superconductors And Manufacturing Methods Therefor (AREA)
  • Continuous Casting (AREA)
  • Molds, Cores, And Manufacturing Methods Thereof (AREA)
  • Connector Housings Or Holding Contact Members (AREA)
  • Manufacturing Of Electrical Connectors (AREA)

Claims (6)

  1. Alliage de coulée du type AlMgSi,
    caractérisé en ce que l'alliage renferme du magnésium 3,0 à 7,0 % en poids du silicium 1,7 à 4,0 % en poids du manganèse 0,2 à 0,48 % en poids du fer 0,15 à 0,35 % en poids du titane max. 0,2 % en poids sélectivement également du nickel 0,1 à 0,4 % en poids
    ainsi que de l'aluminium en tant que reste et des impuretés provenant de la fabrication, individuellement au maximum de 0,02 % en poids, et globalement au maximum 0,2 % en poids, avec la condition supplémentaire suivante, à savoir que le magnésium et le silicium se trouvent dans l'alliage dans un rapport de poids Mg : Si de 1,7 : 1 correspondant à la composition de l'eutectique quasi binaire avec les phases solides Al et Mg2Si, l'écart par rapport à la composition exacte qui correspond à l'eutectique quasi binaire étant pour le magnésium au maximum de -0,5 à +0,3 % en poids et pour le silicium -0,3 à +0,5 % en poids.
  2. Alliage de coulée selon la revendication 1, caractérisé en ce que l'écart par rapport à la composition exacte correspondant à l'eutectique quasi binaire, est pour le magnésium au maximum de -0,2 à +0,1 % en poids, et pour le silicium au maximum -0, 1 à +0,2 % en poids.
  3. Alliage de coulée selon la revendication 1, caractérisé en ce que le magnésium et le silicium se trouvent dans l'alliage sensiblement dans un rapport de poids Mg : Si de 1,7 : 1 correspondant à la composition de l'eutectique quasi binaire.
  4. Utilisation d'un alliage de coulée selon l'une des revendications 1 à 3 pour la coulée sous pression, les procédés de coulée ou de moulage dits Rheocasting et Thixocasting.
  5. Utilisation d'un alliage de coulée selon l'une des revendications 1 à 3 pour la fabrication de pièces de grande surface et d'épaisseur de paroi mince, présentant une grande capacité d'absorption pour l'énergie cinétique, par déformation plastique.
  6. Utilisation d'un alliage de coulée selon l'une des revendications 1 à 3 pour la fabrication d'une pièce en tant que pièce de sécurité dans la construction automobile.
EP01810183A 2001-02-21 2001-02-21 Alliage coulée du type Al-Mg-Si Expired - Lifetime EP1234893B1 (fr)

Priority Applications (7)

Application Number Priority Date Filing Date Title
AT01810183T ATE283380T1 (de) 2001-02-21 2001-02-21 Gusslegierung vom typ aimgsi
EP01810183A EP1234893B1 (fr) 2001-02-21 2001-02-21 Alliage coulée du type Al-Mg-Si
DE50104594T DE50104594D1 (de) 2001-02-21 2001-02-21 Gusslegierung vom Typ AIMgSi
ES01810183T ES2232584T3 (es) 2001-02-21 2001-02-21 Aleacion de colada del tipo aimgsi.
PT01810183T PT1234893E (pt) 2001-02-21 2001-02-21 Liga de moldagem do tipo a1mgsi
US10/072,448 US6623570B2 (en) 2001-02-21 2002-02-08 AlMgSi casting alloy
CA002371318A CA2371318C (fr) 2001-02-21 2002-02-11 Alliage de type almgsi pour moulage

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP01810183A EP1234893B1 (fr) 2001-02-21 2001-02-21 Alliage coulée du type Al-Mg-Si

Publications (2)

Publication Number Publication Date
EP1234893A1 EP1234893A1 (fr) 2002-08-28
EP1234893B1 true EP1234893B1 (fr) 2004-11-24

Family

ID=8183749

Family Applications (1)

Application Number Title Priority Date Filing Date
EP01810183A Expired - Lifetime EP1234893B1 (fr) 2001-02-21 2001-02-21 Alliage coulée du type Al-Mg-Si

Country Status (7)

Country Link
US (1) US6623570B2 (fr)
EP (1) EP1234893B1 (fr)
AT (1) ATE283380T1 (fr)
CA (1) CA2371318C (fr)
DE (1) DE50104594D1 (fr)
ES (1) ES2232584T3 (fr)
PT (1) PT1234893E (fr)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ATE376075T1 (de) * 2005-08-22 2007-11-15 Rheinfelden Aluminium Gmbh Warmfeste aluminiumlegierung
DE502007002411D1 (de) 2007-05-24 2010-02-04 Rheinfelden Aluminium Gmbh Warmfeste Aluminiumlegierung
UA96812C2 (ru) 2010-01-21 2011-12-12 Юлий Викторович Мильман Литейный сплав алюминия, содержащий магний и кремний
CN102787286B (zh) * 2012-07-17 2014-11-26 贵州航天电子科技有限公司 一种（2a12-t4）高强度铝合金薄壁异型腔体成型的方法
KR102463468B1 (ko) * 2017-12-12 2022-11-04 현대자동차주식회사 다이캐스팅용 알루미늄 합금
EP3870728A4 (fr) * 2018-10-26 2022-10-19 The Regents Of The University Of California Nano-traitement d'alliages d'aluminium à haute résistance pour procédés de fabrication
CN110029252B (zh) * 2019-04-12 2021-08-24 范卫忠 一种5g手机中板用高强高韧抗氧化铝镁合金材料及其制备方法

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2129352C3 (de) * 1971-06-14 1982-03-18 Honsel-Werke Ag, 5778 Meschede Verwendung von AlMgSi-Gußlegierungen für thermisch wechselbeanspruchte Zylinderköpfe
DE3838829A1 (de) * 1988-11-17 1990-05-23 Vaw Ver Aluminium Werke Ag Anodisch oxidiertes und elektrolytisch eingefaerbtes gussteil aus einer titanhaltigen almg-gusslegierung
JP2541412B2 (ja) * 1991-12-13 1996-10-09 日本軽金属株式会社 ダイカスト用アルミニウム合金
AU3928495A (en) * 1994-11-15 1996-06-06 Aluminium Rheinfelden Gmbh Cast aluminium alloy
AT407533B (de) * 1999-01-22 2001-04-25 Aluminium Lend Gmbh Aluminiumlegierung

Also Published As

Publication number Publication date
ES2232584T3 (es) 2005-06-01
US6623570B2 (en) 2003-09-23
EP1234893A1 (fr) 2002-08-28
PT1234893E (pt) 2005-03-31
CA2371318A1 (fr) 2002-08-21
DE50104594D1 (de) 2004-12-30
ATE283380T1 (de) 2004-12-15
CA2371318C (fr) 2007-08-14
US20020155022A1 (en) 2002-10-24

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