EP1972695A1 - Procédé de fabrication d'un alliage d'aluminium - Google Patents

Procédé de fabrication d'un alliage d'aluminium Download PDF

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Publication number
EP1972695A1
EP1972695A1 EP08002908A EP08002908A EP1972695A1 EP 1972695 A1 EP1972695 A1 EP 1972695A1 EP 08002908 A EP08002908 A EP 08002908A EP 08002908 A EP08002908 A EP 08002908A EP 1972695 A1 EP1972695 A1 EP 1972695A1
Authority
EP
European Patent Office
Prior art keywords
weight
max
alloy
aluminum
magnesium
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.)
Granted
Application number
EP08002908A
Other languages
German (de)
English (en)
Other versions
EP1972695B1 (fr
Inventor
Franz-Josef Dr. Klinkenberg
Johann Wolf
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.)
Bayerische Motoren Werke AG
Original Assignee
Bayerische Motoren Werke AG
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 Bayerische Motoren Werke AG filed Critical Bayerische Motoren Werke AG
Publication of EP1972695A1 publication Critical patent/EP1972695A1/fr
Application granted granted Critical
Publication of EP1972695B1 publication Critical patent/EP1972695B1/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
    • 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 method for producing an aluminum alloy, in particular for die casting.
  • AlSiMg alloys especially the AlSi9MgMnSr alloy, which are sold under different trade names such as "Silafont 36", "Aural 2" and the like, are mostly used for the production of die-cast components.
  • the iron is largely replaced by manganese.
  • improvements in elongation are expected due to the reduced iron content and strontium addition.
  • these die cast alloys are characterized not only by excellent castability but also by very good elongation in the cast state, maximum elongation after heat treatment and, moreover, by very good corrosion resistance.
  • the object of the invention is therefore to provide a simple process for producing an AlSi9MgMnSr alloy which has at least as good properties as the commercially available AlSi9MgMnSr alloys.
  • According to the invention is based on a commercial AlSi9Mg casting alloy as a base alloy, z. Example, a cast alloy having the following composition: 9.0 to 12.5 wt.% Silicon, 0.1 to 0.5 wt.%, In particular at least 0.3 wt.% Magnesium and at most 0.25 wt.%, in particular not more than 0.15% by weight of iron, not more than 0.15% by weight of titanium, not more than 0.10% by weight of zinc, not more than 0.10% by weight of manganese, not more than 0.05% by weight of copper, where aluminum is the radical forms and the impurities individually a maximum of 0.03 wt.%, A maximum of 0.1 wt.% Make up.
  • the master alloy is an aluminum alloy which contains all of the manganese, the entire strontium and, if appropriate, iron and possibly the remaining magnesium of the aluminum alloy to be produced, ie an AlMnSr alloy which optionally additionally contains Fe and / or Mg, ie B an AlMnSrFe, AlMnSrMg or AlMnSrFeMg alloy.
  • the manganese content of the master alloy is preferably selected such that the manganese content in the alloy to be produced within wide limits of 0.3 to 1 wt.% Can be adjusted taking into account the burnup in the base alloy.
  • the strontium content of the master alloy is preferably selected so that the strontium content in the alloy to be produced is 50-300, preferably 150-250 ppm.
  • the die cast alloy thus produced has the same properties as the commercial AlSi9MgMnSr die cast alloys. It is at least equivalent to commercially available AlSi9MgMnSr die-cast alloys both in terms of joining technology and in terms of their dynamic and static properties.
  • the method according to the invention it is possible to economically convert a commercially available base alloy into a high-quality die casting variant without accepting metallurgical problems.
  • the die-cast alloy produced by the process according to the invention can be used particularly well in motor vehicle and engine construction.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Molds, Cores, And Manufacturing Methods Thereof (AREA)
  • Continuous Casting (AREA)
EP20080002908 2007-03-15 2008-02-16 Procédé de fabrication d'un alliage d'aluminium Active EP1972695B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE200710012424 DE102007012424A1 (de) 2007-03-15 2007-03-15 Verfahren zur Herstellung einer Aluminium-Legierung

Publications (2)

Publication Number Publication Date
EP1972695A1 true EP1972695A1 (fr) 2008-09-24
EP1972695B1 EP1972695B1 (fr) 2010-08-18

Family

ID=39365620

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20080002908 Active EP1972695B1 (fr) 2007-03-15 2008-02-16 Procédé de fabrication d'un alliage d'aluminium

Country Status (2)

Country Link
EP (1) EP1972695B1 (fr)
DE (2) DE102007012424A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9038704B2 (en) 2011-04-04 2015-05-26 Emerson Climate Technologies, Inc. Aluminum alloy compositions and methods for die-casting thereof
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
CN115927926A (zh) * 2022-11-30 2023-04-07 重庆剑涛铝业有限公司 一种高塑性车体结构铝合金及其制备方法

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102888541A (zh) * 2012-10-30 2013-01-23 季华 一种铝钛合金的制备方法

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4937044A (en) * 1989-10-05 1990-06-26 Timminco Limited Strontium-magnesium-aluminum master alloy
EP0687742A1 (fr) * 1994-06-16 1995-12-20 ALUMINIUM RHEINFELDEN GmbH Alliage pour coulée sous pression

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1608245B2 (de) * 1967-09-21 1975-10-02 Metallgesellschaft Ag, 6000 Frankfurt Verfahren zur Herstellung Strontium enthaltender Vorlegierungen
DE69032853T2 (de) * 1989-03-07 1999-07-22 Aluminum Company Of America, Pittsburgh, Pa. Einspritzgiessverfahren und vorrichtung
US20030143102A1 (en) * 2001-07-25 2003-07-31 Showa Denko K.K. Aluminum alloy excellent in cutting ability, aluminum alloy materials and manufacturing method thereof
US20050199318A1 (en) * 2003-06-24 2005-09-15 Doty Herbert W. Castable aluminum alloy

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4937044A (en) * 1989-10-05 1990-06-26 Timminco Limited Strontium-magnesium-aluminum master alloy
EP0687742A1 (fr) * 1994-06-16 1995-12-20 ALUMINIUM RHEINFELDEN GmbH Alliage pour coulée sous pression

Non-Patent Citations (11)

* Cited by examiner, † Cited by third party
Title
FRANKE ALOIS J ET AL: "Drei Jahre Erfahrung mit eisenarmen Druckgusslegierungen // Three years' of experience with low iron die casting alloys", GIESSEREIPRAXIS, FACHVERLAG SCHIELE UND SCHON GMBH, BERLIN, DE, no. 2, 1 January 1998 (1998-01-01), pages 72 - 76, XP009099395, ISSN: 0016-9781 *
FRANKE ALOIS J ET AL: "L duttilità nei pressocolati in alluminio /// Ductility in aluminium pressure die casting", 20030101, vol. 7, no. 26, 1 January 2003 (2003-01-01), pages 83 - 85, XP009099391 *
HIELSCHER ET AL: "Sicherheitsbauteile aus eisenarmen Aluminium-Druckgusslegierungen // Safety components from die-cast low-iron aluminum alloys", WERKSTOFFWOCHE, XX, XX, 1 January 1998 (1998-01-01), pages 185 - 190, XP009099394 *
HIELSCHER U ET AL: "Eine neue eisenarme Druckgusslegierung//A new low-iron pressure die casting alloy", ALUMINIUM, ALUMINIUM VERLAG, DUESSELDORF, DE, vol. 71, no. 6, 1 January 1995 (1995-01-01), pages 676 - 686, XP009099392, ISSN: 0002-6689 *
KLOS RALF ET AL: "Silafont-36 - optimizing the manganese and magnesium content for structural part application", LIVARSKI VESTNIK, DRUSTVO LIVARJEV SLOVENIJE, vol. 51, no. 1, 1 January 2004 (2004-01-01), pages 22 - 36, XP009099390, ISSN: 0024-5135 *
KOCH H ET AL: "Eisenarme Aluminium-Druckgusslegierungen als Substitutionswerkstoff fuer Stahlblechkonstruktionen im Automobilbau // Low-iron aluminum die cast alloys as substitute material for steel sheet constructions in automobile manufacture", GIESSEREIPRAXIS, FACHVERLAG SCHIELE UND SCHON GMBH, BERLIN, DE, no. 4, 1 January 2000 (2000-01-01), pages 148 - 152, XP009099393, ISSN: 0016-9781 *
KOCH H ET AL: "SILAFONT-36 THE NEW LOW-IRON HIGH-PRESSURE DIE-CASTING ALLOY", LIGHT METALS,, 1 January 1995 (1995-01-01), pages 1011 - 1018, XP008053123, ISSN: 0147-0809 *
KOCH HUBERT ET AL: "Ductile high-pressure die casting alloy with low iron content", GIESSEREI, GIESSEREI VERLAG, DUSSELDORF, DE, vol. 82, no. 15, 31 July 1995 (1995-07-31), pages 517 - 523, XP009099456, ISSN: 0016-9765 *
KOCH HUBERT ET AL: "Ductile pressure castings for automotive applications. A status report", AUTOMOTIVE ALLOYS. PROCEEDINGS PF THE SYMPOSIUM PRESENTED AT THETMS ANNUAL MEETING, XX, XX, 1 January 1997 (1997-01-01), pages 185 - 194, XP009099396 *
KOCH HUBERT: "Ductility optimization in the as-cast state of Silafont-36 (Al Si9MgMn)", GIESSEREI, GIESSEREI VERLAG, DUSSELDORF, DE, vol. 91, no. 4, 1 April 2004 (2004-04-01), pages 20 - 25, XP009099455, ISSN: 0016-9765 *
MAHMOUDI MORTEZA ET AL: "Simultaneous grain refining and modification of 356 aluminium alloy using aluminium base master alloys containing strontium , titanium and boron", LIGHT METALS,, 1 January 2005 (2005-01-01), pages 1129 - 1133, XP009099414, ISSN: 0147-0809 *

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9038704B2 (en) 2011-04-04 2015-05-26 Emerson Climate Technologies, Inc. Aluminum alloy compositions and methods for die-casting thereof
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
CN115927926A (zh) * 2022-11-30 2023-04-07 重庆剑涛铝业有限公司 一种高塑性车体结构铝合金及其制备方法
CN115927926B (zh) * 2022-11-30 2024-01-30 重庆剑涛铝业有限公司 一种高塑性车体结构铝合金及其制备方法

Also Published As

Publication number Publication date
DE502008001133D1 (de) 2010-09-30
EP1972695B1 (fr) 2010-08-18
DE102007012424A1 (de) 2008-09-18

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