EP1118686B1 - Alliage de coulée à base d'aluminium - Google Patents

Alliage de coulée à base d'aluminium Download PDF

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Publication number
EP1118686B1
EP1118686B1 EP01810014A EP01810014A EP1118686B1 EP 1118686 B1 EP1118686 B1 EP 1118686B1 EP 01810014 A EP01810014 A EP 01810014A EP 01810014 A EP01810014 A EP 01810014A EP 1118686 B1 EP1118686 B1 EP 1118686B1
Authority
EP
European Patent Office
Prior art keywords
max
alloy
use according
weight
alloy contains
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
EP01810014A
Other languages
German (de)
English (en)
Other versions
EP1118686A1 (fr
Inventor
Hubert Koch
Horst Schramm
Peter Krug
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.)
Aluminium Rheinfelden GmbH
Original Assignee
Aluminium Rheinfelden 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
Priority claimed from EP00810040A external-priority patent/EP1118685A1/fr
Application filed by Aluminium Rheinfelden GmbH filed Critical Aluminium Rheinfelden GmbH
Priority to EP01810014A priority Critical patent/EP1118686B1/fr
Publication of EP1118686A1 publication Critical patent/EP1118686A1/fr
Application granted granted Critical
Publication of EP1118686B1 publication Critical patent/EP1118686B1/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
    • 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
    • C22C1/12—Making non-ferrous alloys by processing in a semi-solid state, e.g. holding the alloy in the solid-liquid phase
    • 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

Definitions

  • the invention relates to the use of an aluminum alloy for die casting, for thixocasting or thixo forging.
  • Die casting technology has developed so far today that it is possible To produce castings with high quality standards.
  • the quality of one Die-cast piece depends not only on the machine setting and the selected method, but also to a large extent from the chemical Composition and structure of the cast alloy used. These last two parameters are known to influence the Pourability, the feeding behavior (G. Schindelbauer, J. Czikel “Mold filling capacity and volume deficit of common aluminum die casting alloys " Giessereiforschung 42, 1990, pp. 88/89), the mechanical properties and - particularly important in die casting - the lifespan of the Casting tools (L.A. Norström, B. Klarenfjord, M. Svenson "General Aspects on Wash-out Mechanism in Aluminum Diecasting Dies ", 17th International NADCA Diecasting Congress 1993, Cleveland OH).
  • EP-A-808 911 or EP-A-801 139 disclose AlMg alloys with the participation of Mn, Co, V and Zr.
  • AlMg alloys are also known, which are characterized by high ductility distinguished. Such an alloy is for example in US-A-5 573 606. However, these alloys have the disadvantage of high mold wear and bring problems with molding what productivity significantly reduced.
  • EP-A-0 911 420 describes an aluminum alloy suitable for die casting, thixocasting and thixo forging with (in% by weight) 2.0-3.5 mg, 0.15-0.35 Si, 0, 20 - 1.2 Mn, max. 0.40 Fe, max. 0.10 Cu max. 0.05 Cr, max. 0.10 Zu, max. 0.003 Be, max. 0.20 Ti, max. 0.60 Co and max. 0.80 Ce known.
  • the alloy should also be easy to weld, a high corrosion resistance have and in particular no susceptibility to stress corrosion cracking demonstrate.
  • the one used to make the alloy The degree of purity of the aluminum used corresponds to a smelting aluminum quality Al 99.8 H.
  • the alloy content is set as a general condition to keep close to the wrought alloy groups so that when later recycling of alloys used in vehicle construction, for example a reusable alloy system is retained or with mixing associated with an increase in entropy is limited.
  • the alloy In the as-cast state, the alloy has a well molded ⁇ phase.
  • the eutectic predominantly made of Al 6 (Mn, Fe) phases, is very fine and therefore leads to a highly ductile fracture behavior.
  • the manganese content prevents sticking in the mold and ensures good mold release.
  • the magnesium content in connection with manganese gives the casting a high level of design stability, so that very little or no distortion can be expected even when demolding.
  • this alloy can also be used for use thixocasting or thixo forging.
  • the ⁇ phase forms in the Remelt immediately, giving excellent thixotropic properties available. At the usual heating speeds, a grain size becomes of ⁇ 100 ⁇ m.
  • Zircon increases the proof stress and produces a finer grain, so that the required mechanical properties, in particular the yield strength in the as-cast state, can be achieved.
  • the tendency of the casting to stick in the mold can be drastically reduced and the molding behavior can be significantly improved if additional is added to manganese cobalt and / or cerium.
  • the alloy preferably contains therefore 0.3 to 0.6% by weight of cobalt and / or 0.05 to 0.8% by weight, in particular 0.1 to 0.5% by weight of cerium.
  • the alloy contains 0.005 to 0.15% by weight, in particular 0.01 to 0.03 % By weight vanadium in order to improve the pourability or the flowability. Tests have shown that the mold filling capacity can be determined by a Vanadium addition is significantly improved. It also prevents vanadium the tendency to scratch known with AIMg alloys, especially because no beryllium is added to the alloy.
  • the aluminum alloy is particularly suitable for thixocasting or thixo forging.
  • the aluminum alloy is intended in particular for processing in die casting, it can of course also be cast using other methods, for example sand casting gravity die Low-pressure casting Thixocasting / Thixoforging Squeeze casting
  • the alloy is easy to weld, shows excellent casting behavior, a practically negligible tendency to stick and can be shaped well.

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Forging (AREA)
  • Continuous Casting (AREA)

Claims (9)

  1. Utilisation, pour la thixo-coulée ou le thixo-forgeage, d'un alliage d'aluminium de coulée sous pression qui se compose de 0,6 à 1,2 % en poids de magnésium 0,15 max % en poids de silicium 0,5 à 2,0 % en poids de manganèse 0,7 max % en poids de fer 0,1 max % en poids de cuivre 0,1 max % en poids de zinc 0,2 max % en poids de titane 0,1 à 0,6 % en poids de cobalt 0,8 max % en poids de cérium 0,05 à 0,5 % en poids de zirconium 0,005 à 0,15 % en poids de vanadium 0,5 max % en poids d'Hafnium
    et le solde aluminium ainsi que des impuretés inévitables: 0,05 max % en poids chacun, 0,2 % en poids au total.
  2. Utilisation selon la revendication 1, caractérisée en ce que l'alliage contient de 0,8 à 1,6 % en poids de manganèse.
  3. Utilisation selon la revendication 1 ou 2, caractérisée en ce que l'alliage contient au maximum 0,3 % en poids de fer.
  4. Utilisation selon l'une quelconque des revendications précédentes, caractérisée en ce que l'alliage contient de 0,3 à 0,6 % en poids de cobalt.
  5. Utilisation selon l'une quelconque des revendications précédentes, caractérisée en ce que l'alliage contient de 0,05 à 0,8 % en poids, en particulier de 0,1 à 0,5 % en poids, de cérium.
  6. Utilisation selon l'une quelconque des revendications précédentes, caractérisée en ce que l'alliage contient de 0,08 à 0,35 % en poids de zirconium.
  7. Utilisation selon l'une quelconque des revendications précédentes, caractérisée en ce qu l'alliage contient de 0,01 à 0,03 % en poids de vanadium.
  8. Utilisation selon l'une quelconque des revendications précédentes caractérisée en ce que l'alliage contient de 0,1 à 0,4 % en poids, en particulier de 0,20 à 0,35 % en poids d'hafnium.
  9. Utilisation selon l'une quelconque des revendications précédentes caractérisée en ce que la limite élastique (Rp0,2) de l'alliage sous forme d'alliage de coulée sous pression est de 100 Mpa minimum à l'état coulé et que sa déformation permanente (A5) à la rupture dans ces conditions est de 14% minimum.
EP01810014A 2000-01-19 2001-01-08 Alliage de coulée à base d'aluminium Expired - Lifetime EP1118686B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP01810014A EP1118686B1 (fr) 2000-01-19 2001-01-08 Alliage de coulée à base d'aluminium

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
EP00810040 2000-01-19
EP00810040A EP1118685A1 (fr) 2000-01-19 2000-01-19 Alliage d'Aluminium coulé
EP01810014A EP1118686B1 (fr) 2000-01-19 2001-01-08 Alliage de coulée à base d'aluminium

Publications (2)

Publication Number Publication Date
EP1118686A1 EP1118686A1 (fr) 2001-07-25
EP1118686B1 true EP1118686B1 (fr) 2003-09-17

Family

ID=26073755

Family Applications (1)

Application Number Title Priority Date Filing Date
EP01810014A Expired - Lifetime EP1118686B1 (fr) 2000-01-19 2001-01-08 Alliage de coulée à base d'aluminium

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EP (1) EP1118686B1 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2586960B1 (fr) 2011-10-27 2016-01-13 Sandvik Intellectual Property AB Trépan doté d'un bouton enfoncé et outil de perçage de roche à utiliser avec un tel trépan
CN112626391B (zh) * 2021-01-07 2022-05-03 重庆慧鼎华创信息科技有限公司 一种低硅高导热压铸铝合金及其制备方法
CN116377289A (zh) * 2023-04-10 2023-07-04 帅翼驰新材料集团有限公司 适于钎焊的高压铸造铝合金

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60248859A (ja) * 1984-05-25 1985-12-09 Sumitomo Light Metal Ind Ltd 超高圧用プレ−トフイン型熱交換器のフイン材
EP0801139B1 (fr) * 1996-04-10 1999-12-29 Alusuisse Technology & Management AG Elément de construction
EP0808911A1 (fr) * 1996-05-22 1997-11-26 Alusuisse Technology & Management AG Elément de construction
EP0911420B1 (fr) * 1997-10-08 2002-04-24 ALUMINIUM RHEINFELDEN GmbH Alliage de coulée à base d'aluminium
EP0908527A1 (fr) * 1997-10-08 1999-04-14 ALUMINIUM RHEINFELDEN GmbH Alliage de coulée à base d'aluminium

Also Published As

Publication number Publication date
EP1118686A1 (fr) 2001-07-25

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