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EP1218561B1 - Procede de traitement thermique de pieces structurales moulees constituees d'un alliage d'aluminium destine a etre utilise a cet effet - Google Patents

Procede de traitement thermique de pieces structurales moulees constituees d'un alliage d'aluminium destine a etre utilise a cet effet Download PDF

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Publication number
EP1218561B1
EP1218561B1 EP00965954A EP00965954A EP1218561B1 EP 1218561 B1 EP1218561 B1 EP 1218561B1 EP 00965954 A EP00965954 A EP 00965954A EP 00965954 A EP00965954 A EP 00965954A EP 1218561 B1 EP1218561 B1 EP 1218561B1
Authority
EP
European Patent Office
Prior art keywords
minutes
approximately
heat treatment
quenching
temperature
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
EP00965954A
Other languages
German (de)
English (en)
Other versions
EP1218561A2 (fr
Inventor
Ulrich Jerichow
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.)
Honsel Werke AG
Original Assignee
Honsel Guss 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 DE10002021A external-priority patent/DE10002021C2/de
Application filed by Honsel Guss GmbH filed Critical Honsel Guss GmbH
Publication of EP1218561A2 publication Critical patent/EP1218561A2/fr
Application granted granted Critical
Publication of EP1218561B1 publication Critical patent/EP1218561B1/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
    • 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
    • C22F1/043—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 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
    • 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

Definitions

  • the invention relates to a method for the heat treatment of structural castings from a Aluminum alloy and an aluminum alloy to be used for it.
  • Aluminum structural castings made from an aluminum alloy are used, for example, in motor vehicle construction and are said to have good mechanical properties, in particular high elongation at break, good castability, no tendency to stick in the mold, and good demoldability, high structural strength and good weldability. Since the required properties of the known cast aluminum alloys do not exist in the as-cast state, heat treatment processes and aluminum alloys have been developed in order to meet industrial requirements more precisely and more cost-effectively. Special heat treatment processes known as T64 and T7 have become known for this. These heat treatment processes are described, for example, in "The Technician's Handbook" Böge, Vieweg, 13th edition, pages 551 to 554.
  • T64 thermalally unstable
  • 1st stage Warm to 480-520 ° C, hold for 2-5 hours, quench in water at 20 ° C
  • 2nd stage Warm to 155-170 ° C, hold for 2-6 hours, quench in air.
  • T7 thermalally stable up to 230 ° C: 1st stage Warm to 480-520 ° C, hold for 2-5 hours, quench in water at 20 ° C; 2nd stage Warm to 200 to 230 ° C, hold for 2 to 3 hours, quench in air.
  • the invention is therefore based on the problem of a heat treatment process create with which good mechanical properties and high dimensional accuracy can be achieved inexpensively and with simple means.
  • US-A-4 786 340 describes a similar heat treatment, but without the application of the structural casting on a contour-engaging product holder and only with a view to achieving the desired mechanical properties as quickly as possible of aluminum castings.
  • the temperature at 490 ° C. can preferably be maintained for about 60 minutes and keeping at the temperature of 250 ° C for about 30 minutes.
  • the temperature is kept at 490 ° C during about 90 minutes, can be kept at the temperature of 250 ° C during about 30 minutes or about 45 minutes or about 75 minutes or about 105 minutes take place, which changes the mechanical properties depending on the range of requirements vary.
  • the cast structural castings are made on special contour-taking product shots applied and subjected to the aforementioned heat treatment steps.
  • the heat treatment process T7 a minimum time of also takes 4 hours and a maximum time of 8 hours
  • the method according to the invention for a maximum of 3.25 hours, but can in the most favorable case up to 1.5 hours can be shortened.
  • the method according to the invention thus generally results better economy due to the shorter cycle time.
  • thermal stability due to the temperature increase in the second stage approx. 30 ° C compared to the T7 heat treatment process and approx. 80 ° C compared to the Heat treatment process T64 improved so that the after the invention Process of heat-treated structural castings up to operating temperatures of 250 ° C are thermally stable.
  • the aluminum alloys of the invention for use with the invention Processes allow very thin-walled, large-area and complex structural castings produce their dimensional stability and dimensional stability by the invention Heat treatment process is guaranteed. Accordingly, that offer The inventive method and the alloy used with the designer great freedom of design. With the inventive method and with it Aluminum alloys used can be of constant quality in one Series production, high ductility, good weldability and thus the possibility ensure the connection with sheets or extruded profiles.

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  • 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)
  • Continuous Casting (AREA)
  • Heat Treatment Of Articles (AREA)
  • Manufacture And Refinement Of Metals (AREA)
  • Molds, Cores, And Manufacturing Methods Thereof (AREA)

Claims (7)

  1. Procédé de traitement thermique de pièces en fonte structurale constituées d'un alliage d'aluminium, comportant les étapes suivantes :
    mise en place de la pièce en fonte structurale sur un logement de produit entourant le contour,
    chauffage à 490 °C pendant environ 30 minutes,
    maintien de la température de 490 °C pendant un temps compris entre 60 et 90 minutes,
    refroidissement de trempe à l'air en 4 minutes environ de 490 °C à environ 100 °C et éventuellement trempe dans l'eau,
    chauffage à 250 °C pendant environ 15 minutes,
    maintien de la température de 250 °C pendant un temps compris entre 30 et 105 minutes,
    refroidissement de trempe à l'air à 40 °C et éventuellement ensuite trempe dans l'eau.
  2. Procédé selon la revendication 1 dans lequel on effectue le maintien à la température de 490 °C pendant 60 minutes environ et le maintien à la température de 250 °C pendant 30 minutes environ.
  3. Procédé selon la revendication 1 dans lequel on effectue le maintien à la température de 490 °C pendant 90 minutes environ et le maintien à la température de 250 °C pendant 30 minutes environ ou 45 minutes environ ou 60 minutes environ ou 105 minutes environ.
  4. Procédé selon l'une des revendications 1 à 3, par utilisation d'un alliage d'aluminium de composition suivante :
    Si: 2-11,5%
    Fe: 0,15-0,4%
    Mg: 0,3-1,0%
    Cu: <0,02%
    Mn: 0,4-0,8%
    Ti: 0,1-0,2%,
    Reste : aluminium et éléments en traces.
  5. Procédé selon l'une des revendications 1 à 3, par utilisation d'un alliage d'aluminium de composition suivante :
    Si: 1-3%
    Fe: 0,15-0,4%
    Mg: 3-5,5%
    Cu: <0,02%
    Mn: 0,4-0,8%
    Ti: 0,1-0,2%
    Zn: <0,08%,
    Reste : aluminium et éléments en traces.
  6. Procédé selon l'une des revendications 1 à 3, par utilisation d'un alliage d'aluminium de composition suivante :
    Si: 7-11,5%
    Fe: 0,15-0,4%
    Mg: 0,3-0,4%
    Cu: <0,02%
    Mn: 0,4-0,6%
    Ti: 0,15-0,2%
    Sr: 300 ppm
    Reste : aluminium et éléments en traces.
  7. Procédé selon l'une des revendications 4 à 6, dans lequel l'alliage d'aluminium a été soumis, avant introduction dans le processus de coulée, à un traitement de fusion tel que dégazage et/ou filtrage.
EP00965954A 1999-09-24 2000-09-09 Procede de traitement thermique de pieces structurales moulees constituees d'un alliage d'aluminium destine a etre utilise a cet effet Expired - Lifetime EP1218561B1 (fr)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
DE19945754 1999-09-24
DE19945754 1999-09-24
DE10002021 2000-01-19
DE10002021A DE10002021C2 (de) 1999-09-24 2000-01-19 Verfahren zur Wärmebehandlung von Strukturgußteilen aus einer dafür zu verwendenden Aluminiumlegierung
PCT/EP2000/008822 WO2001023633A2 (fr) 1999-09-24 2000-09-09 Procede de traitement thermique de pieces structurales moulees constituees d'un alliage d'aluminium destine a etre utilise a cet effet

Publications (2)

Publication Number Publication Date
EP1218561A2 EP1218561A2 (fr) 2002-07-03
EP1218561B1 true EP1218561B1 (fr) 2003-12-03

Family

ID=26003916

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00965954A Expired - Lifetime EP1218561B1 (fr) 1999-09-24 2000-09-09 Procede de traitement thermique de pieces structurales moulees constituees d'un alliage d'aluminium destine a etre utilise a cet effet

Country Status (6)

Country Link
US (1) US6752885B1 (fr)
EP (1) EP1218561B1 (fr)
JP (1) JP2003510463A (fr)
AT (1) ATE255646T1 (fr)
ES (1) ES2211617T3 (fr)
WO (1) WO2001023633A2 (fr)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10037307B4 (de) 2000-07-28 2004-02-05 Honsel Gmbh & Co Kg Strukturelement für ein Flugzeug, insbesondere Flugzeugtür
DE20320840U1 (de) * 2003-07-04 2005-03-31 Alutec Belte Ag Vorrichtung zum Abschrecken und Wärmebehandeln eines Gussteils
WO2007025528A2 (fr) * 2005-08-31 2007-03-08 Ksm Castings Gmbh Alliages d'aluminium coules
JP2007239001A (ja) * 2006-03-07 2007-09-20 Nissan Motor Co Ltd アルミダイカスト製品の製造方法および製造装置
CN101415855B (zh) * 2006-04-13 2011-12-28 空中客车德国有限公司 型材的热处理方法、用于型材热处理的装置及型材
JP4994734B2 (ja) * 2006-07-24 2012-08-08 株式会社大紀アルミニウム工業所 鋳造用アルミニウム合金および同アルミニウム合金鋳物
FR2917751B1 (fr) * 2007-06-22 2011-04-01 Montupet Sa Procede de traitement thermique de culasses en alliage a base d'aluminuim, et culasses presentant des proprietes de resistance a la fatigue ameliorees
WO2009059591A2 (fr) * 2007-11-08 2009-05-14 Ksm Castings Gmbh Support d'essieu avant pour véhicules automobiles
DE102008029864B4 (de) * 2008-06-24 2011-02-24 Bdw Technologies Gmbh Gussbauteil und Verfahren zu dessen Herstellung
DE102009019269A1 (de) * 2009-04-28 2010-11-11 Audi Ag Aluminium-Silizium-Druckgusslegierung für dünnwändige Strukturbauteile
US9038704B2 (en) 2011-04-04 2015-05-26 Emerson Climate Technologies, Inc. Aluminum alloy compositions and methods for die-casting thereof
US9951396B2 (en) 2014-09-18 2018-04-24 Consolidated Engineering Company, Inc. System and method for quenching castings
MX2017015935A (es) 2015-06-12 2018-08-15 Consolidated Eng Company Inc Sistema y metodo para mejorar el flujo de aire de enfriamiento.
CN108472719A (zh) * 2015-11-05 2018-08-31 联合工程公司 用于改进铸件热处理的方法

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1027409B (de) 1953-04-10 1958-04-03 Ver Deutsche Metallwerke Ag Verwendung von Aluminiumlegierungen mit Zink, Magnesium und Kupfer
JPH0737660B2 (ja) 1985-02-21 1995-04-26 トヨタ自動車株式会社 アルミ合金鋳物製内燃機関用シリンダヘッドの改良処理方法
JPS6274043A (ja) 1985-09-27 1987-04-04 Ube Ind Ltd 加圧鋳造用高力アルミニウム合金
US5178695A (en) 1990-05-02 1993-01-12 Allied-Signal Inc. Strength enhancement of rapidly solidified aluminum-lithium through double aging
CH689143A5 (de) 1994-06-16 1998-10-30 Rheinfelden Aluminium Gmbh Aluminium-Silizium Druckgusslegierung mit hoher Korrosionsbestaendigkeit, insbesondere fuer Sicherheitsbauteile.
JP3764200B2 (ja) 1996-03-19 2006-04-05 株式会社デンソー 高強度ダイカスト品の製造方法

Also Published As

Publication number Publication date
WO2001023633A2 (fr) 2001-04-05
WO2001023633A3 (fr) 2001-11-01
ES2211617T3 (es) 2004-07-16
EP1218561A2 (fr) 2002-07-03
ATE255646T1 (de) 2003-12-15
JP2003510463A (ja) 2003-03-18
US6752885B1 (en) 2004-06-22

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