EP0498719B1 - Eingiessteil für Verbundgussstück - Google Patents

Eingiessteil für Verbundgussstück Download PDF

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Publication number
EP0498719B1
EP0498719B1 EP92400292A EP92400292A EP0498719B1 EP 0498719 B1 EP0498719 B1 EP 0498719B1 EP 92400292 A EP92400292 A EP 92400292A EP 92400292 A EP92400292 A EP 92400292A EP 0498719 B1 EP0498719 B1 EP 0498719B1
Authority
EP
European Patent Office
Prior art keywords
layer
insert
insert according
aluminum
metal
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
EP92400292A
Other languages
English (en)
French (fr)
Other versions
EP0498719A1 (de
Inventor
Jean-Claude Jaquet
Rolf Mader
Roman Fuchs
Marcus Textor
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.)
Montupet SA
Original Assignee
Montupet SA
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 Montupet SA filed Critical Montupet SA
Publication of EP0498719A1 publication Critical patent/EP0498719A1/de
Application granted granted Critical
Publication of EP0498719B1 publication Critical patent/EP0498719B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D19/00—Casting in, on, or around objects which form part of the product
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D19/00—Casting in, on, or around objects which form part of the product
    • B22D19/0081—Casting in, on, or around objects which form part of the product pretreatment of the insert, e.g. for enhancing the bonding between insert and surrounding cast metal
    • 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

Definitions

  • the present invention relates to an insert made of a aluminum material for remelting or joining by cast iron with a melt of aluminum or a aluminum alloy to form a casting composite with metallic bond in the surface composite limit.
  • the East German patent DD-141 121 discloses a process according to the preamble of claim 1, wherein the insert is provided of a metallic coating after fluxing by immersion in a bath metallic (molten lead) which has a high ability to combine with alminium. But fluxing treatment can, for shaped inserts complicated, leave remnants of flux and alter at points corresponding bond adhesion.
  • the inventor set himself as objective of preparing an insert of the type mentioned in start, with which the melting temperature can be kept as low as possible during casting composite and bond adhesion can be further improved.
  • the invention also provides a composite casting such as defined in claim 10.
  • the invention it becomes possible to use as a material for inserts the whole range of aluminum materials and at the same time achieve high bond adhesion in the composite casting.
  • the first layer we ensure the second layer good adhesion with metallic bond.
  • the first layer is in the simplest case carried out uniformly in a single metal or metal alloy. he However, it is already sufficient that only the surface layer of the first layer consists of a metal or alloy resistant to oxidation.
  • the first layer can therefore also be a multi-layered system whose layer external is formed of a metal or metal alloy resistant to oxidation.
  • Metals suitable for the first layer or surface layer of it are Z, Cd, Cr, Cu, as well as Ag, Au, Ni in particular and alloys of these elements.
  • a layer thickness of 0.002 to 20 ⁇ m is generally sufficient, while in most cases the thickness may be less at 5 ⁇ m and in principle even a layer thickness of a few rows of atoms may suffice.
  • the second layer melting relatively low, of the surface of the insert, care must be taken that when from composite casting to the boundary surface between the insert and the molten metal mass, there is during a sufficient duration a liquid layer which ensures the interdiffusion membership.
  • Metals or alloys suitable metals with high solubility in aluminum in the solid state i.e. what we call brazing filler alloys, are zinc or zinc alloys such as ZnAl5, ZnMg3 and ZnCu5, while that the exact content of alloying element may vary in a relatively wide range and that we can thus adjust the desired melting temperature.
  • ZnAl5, ZnMg3 and ZnCu5 zinc or zinc alloys
  • Thickness of the second layer is preferably between 20 and 300 ⁇ m.
  • the second layer can be provided directly with a third layer corresponding to the first layer in terms of choice of material and thickness. It is also possible to use as a third layer, instead of a metal which is stable against oxidation, a layer of flux or flux, the latter being able to be applied for example by dipping in a flux or even being able to be done. by depositing a flux on the mass of molten metal directly during the composite casting, on the surface of the insert.
  • An appropriate flux is for example K 2 ZrF 6 .
  • the aluminum material of the insert according to the invention can for example include an alloy with difficulty flowable, intermetallic phases, materials spray compacted or sintered, as well as very generally composite materials with aluminum matrix, possibly reinforced with ceramic particles, short fibers, whiskeys or barbs or continuous fibers, as well as shapes hybrids and other special alunimium materials.
  • the first layer, or at least the layer surface can be deposited on the insert surface by immersing the insert in a molten bath of metal or alloy resistant to the oxidation that we chose and applying simultaneously with the insert of ultrasonic vibrations. These vibrations have the effect of releasing by action mechanical the oxide layer present on the surface of the insert and therefore to obtain good adhesion of the surface layer resistant to oxidation.
  • the second layer is preferably applied in the dip coating process.
  • a composite casting we place usually the insert in a mold - which can also be a shell for die casting - and we redesign or we join by the cast iron with the mass of molten metal.
  • a composite casting can also have several inserts.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Other Surface Treatments For Metallic Materials (AREA)
  • Cylinder Crankcases Of Internal Combustion Engines (AREA)

Claims (10)

  1. Eingießteil aus einem Aluminiumwerkstoff für die Umschmelze oder Verbindung durch Gießen mit einer geschmolzenen Masse aus Aluminium oder Aluminiumlegierung, um ein gegossenes Verbundteil mit einer metallischen Verbindung in der Randfläche des Verbundteils herzustellen, wobei mindestens die oxidfreie Oberfläche des Eingießteils, auf der die geschmolzene Masse umgeschmolzen oder durch Vergießen der geschmolzenen Masse verbunden wird, eine erste Schicht mit einer oberflächlichen Schicht aus einem oxidationsbeständigen Metall oder einer oxidationsbeständigen Legierung aufweist, sowie eine zweite Schicht enthält, welche direkt auf diese erste Schicht aufgetragen wird,
    dadurch gekennzeichnet, daß
    die zweite Schicht aus einem Metall oder einer Metallegierung hergestellt wird, welche eine hohe Löslichkeit in Aluminium im festen Zustand und eine Schmelztemperatur zwischen 350 und 500°C aufweist.
  2. Eingießteil nach Anspruch 1,
    dadurch gekennzeichnet, daß
    die erste Schicht eine Dicke zwischen 0,002 bis 20 µm hat.
  3. Eingießteil nach einem der Ansprüche 1 oder 2,
    dadurch gekennzeichnet, daß
    mindestens die oberflächliche Schicht der ersten Schicht aus Ag, Au, Ni, Cr, Cu, Zn, Cd oder aus Legierungen dieser Elemente besteht.
  4. Eingießteil nach einem der Ansprüche 1 bis 3,
    dadurch gekennzeichnet, daß
    die zweite Schicht eine Dicke von 20 bis 300 µm hat.
  5. Eingießteil nach einem der Ansprüche 1 bis 4,
    dadurch gekennzeichnet, daß
    die zweite Schicht aus Zink oder einer Zinklegierung vom Typ ZnAl5, ZnMg3 oder ZnCu5 besteht.
  6. Eingießteil nach einem der Ansprüche 1 bis 5,
    dadurch gekennzeichnet, daß
    die zweite Schicht direkt mit einer dritten Schicht versehen wird, welche aus einer oberflächlichen Schicht aus einem oxidationsbeständigen Metall oder einer oxidationsbeständigen Legierung besteht.
  7. Eingießteil nach Anspruch 6,
    dadurch gekennzeichnet, daß
    die dritte Schicht eine Dicke von 0,002 bis 20 µm hat.
  8. Eingießteil nach einem der Ansprüche 6 oder 7,
    dadurch gekennzeichnet, daß
    mindestens die oberflächliche Schicht der dritten Schicht aus Ag, Au, Ni, Cr, Cu, Zn, Cd oder aus Legierungen dieser Elemente besteht.
  9. Eingießteil nach einem der Ansprüche 1 bis 5,
    dadurch gekennzeichnet, daß
    die zweite Schicht direkt auf die dritte Schicht mittels eines Flußmittels aufgetragen wird, welches zum Beispiel aus K2ZrF6 besteht.
  10. Verbundteil, welches mindestens ein Eingießteil nach einem der Ansprüche 1 bis 9 aufweist,
    dadurch gekennzeichnet, daß
    dieses Eingießteil oder diese Eingießteile umgeschmolzen oder mittels Vergießen mit Aluminium oder einer Aluminiumlegierung verbunden werden.
EP92400292A 1991-02-05 1992-02-05 Eingiessteil für Verbundgussstück Expired - Lifetime EP0498719B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH348/91 1991-02-05
CH348/91A CH682307A5 (de) 1991-02-05 1991-02-05

Publications (2)

Publication Number Publication Date
EP0498719A1 EP0498719A1 (de) 1992-08-12
EP0498719B1 true EP0498719B1 (de) 1998-04-22

Family

ID=4184971

Family Applications (1)

Application Number Title Priority Date Filing Date
EP92400292A Expired - Lifetime EP0498719B1 (de) 1991-02-05 1992-02-05 Eingiessteil für Verbundgussstück

Country Status (4)

Country Link
EP (1) EP0498719B1 (de)
CH (1) CH682307A5 (de)
DE (1) DE69225163T2 (de)
ES (1) ES2114552T3 (de)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10316002B3 (de) * 2003-04-08 2004-10-28 Federal-Mogul Nürnberg GmbH Verfahren zur Herstellung eines Kolbens für einen Verbrennungsmotor
DE102010055162A1 (de) * 2010-12-18 2012-06-21 Mahle International Gmbh Beschichtung sowie beschichtetes Eingussbauteil
DE102015106002A1 (de) * 2015-04-20 2016-10-20 Gottfried Wilhelm Leibniz Universität Hannover Elektrisches Bauteil, Konstruktionsbauteil eines technischen Gegenstands sowie Verfahren zu deren Herstellung

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4325864A1 (de) * 1993-08-02 1995-05-11 Mahle Gmbh Gießtechnisches Verfahren zur Herstellung eines Bauteiles, insbesondere Kolben, bestehend aus zwei unterschiedlichen Werkstoffen
FR2734195A1 (fr) * 1995-05-18 1996-11-22 Montupet Sa Procede de fabrication d'une piece en alliage d'aluminium presentant une surface de frottement, et pieces realisees conformement au procede
US6443211B1 (en) 1999-08-31 2002-09-03 Cummins Inc. Mettallurgical bonding of inserts having multi-layered coatings within metal castings
JP2005536641A (ja) * 2002-08-20 2005-12-02 スリーエム イノベイティブ プロパティズ カンパニー 金属マトリックス複合体およびその製造方法
DE10259700A1 (de) * 2002-12-18 2004-07-15 Bayerische Motoren Werke Ag Verfahren zur Herstellung eines Leichtmetall-Verbundgussteil sowie Leichtmetall-Verbundgussteil
DE102007059771A1 (de) 2007-12-12 2009-06-18 Daimler Ag Eingussteile mit Konditionierungsschicht zum Eingießen in Leichtmetalle

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2100255A (en) * 1936-01-28 1937-11-23 Reynolds Metals Co Method of making composite bodies of zinc and aluminum
US2100258A (en) * 1936-02-15 1937-11-23 Reynolds Metals Co Composite body of copper and aluminum or copper and magnesium, and method of making same
JPS5510369A (en) * 1978-07-10 1980-01-24 Mitsubishi Motors Corp Aluminum product by die casting
JPS5838563A (ja) * 1981-08-31 1983-03-07 中川　成之輔 中空糸型血液透析装置
FR2558084B1 (fr) * 1984-01-17 1988-04-15 Renault Piece de fonderie bi-metallique
IT1228449B (it) * 1989-02-22 1991-06-19 Temav Spa Procedimento per ottenere un legame metallurgico tra un materiale metallico o composito a matrice metallica e un getto di metallo o di lega metallica.
GB8818214D0 (en) * 1988-07-30 1988-09-01 T & N Technology Ltd Pistons
DE4005097A1 (de) * 1990-02-17 1991-08-29 Bayerische Motoren Werke Ag Verfahren zur herstellung von verbundgussstuecken mit wenigstens einem metall durch an- oder umgiessen, insbesondere aus leicht- und schwermetallen

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
WPI, World Patent Index Database, Derwent Publications, London, GB AN=80- 69722c(40) & DD-A-141121 (ROGOSS ET AL.) 17 April 1980 *

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10316002B3 (de) * 2003-04-08 2004-10-28 Federal-Mogul Nürnberg GmbH Verfahren zur Herstellung eines Kolbens für einen Verbrennungsmotor
DE102010055162A1 (de) * 2010-12-18 2012-06-21 Mahle International Gmbh Beschichtung sowie beschichtetes Eingussbauteil
DE102015106002A1 (de) * 2015-04-20 2016-10-20 Gottfried Wilhelm Leibniz Universität Hannover Elektrisches Bauteil, Konstruktionsbauteil eines technischen Gegenstands sowie Verfahren zu deren Herstellung

Also Published As

Publication number Publication date
DE69225163D1 (de) 1998-05-28
CH682307A5 (de) 1993-08-31
DE69225163T2 (de) 1998-09-03
ES2114552T3 (es) 1998-06-01
EP0498719A1 (de) 1992-08-12

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