EP0854763B1 - Procede de production d'une liaison intermetallique - Google Patents

Procede de production d'une liaison intermetallique Download PDF

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Publication number
EP0854763B1
EP0854763B1 EP96945136A EP96945136A EP0854763B1 EP 0854763 B1 EP0854763 B1 EP 0854763B1 EP 96945136 A EP96945136 A EP 96945136A EP 96945136 A EP96945136 A EP 96945136A EP 0854763 B1 EP0854763 B1 EP 0854763B1
Authority
EP
European Patent Office
Prior art keywords
reinforcing member
intermetallic
alfin
aluminium
join
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
EP96945136A
Other languages
German (de)
English (en)
Other versions
EP0854763A2 (fr
Inventor
Birgit Hudelmaier
Dieter MÜLLER-SCHWELLING
Detlef Schlosser
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.)
Mahle GmbH
Original Assignee
Mahle 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
Application filed by Mahle GmbH filed Critical Mahle GmbH
Publication of EP0854763A2 publication Critical patent/EP0854763A2/fr
Application granted granted Critical
Publication of EP0854763B1 publication Critical patent/EP0854763B1/fr
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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02F—CYLINDERS, PISTONS OR CASINGS, FOR COMBUSTION ENGINES; ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES
    • F02F7/00—Casings, e.g. crankcases or frames
    • F02F7/0085—Materials for constructing engines or their parts
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05C—INDEXING SCHEME RELATING TO MATERIALS, MATERIAL PROPERTIES OR MATERIAL CHARACTERISTICS FOR MACHINES, ENGINES OR PUMPS OTHER THAN NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES
    • F05C2201/00—Metals
    • F05C2201/02—Light metals
    • F05C2201/021—Aluminium

Definitions

  • the invention is concerned with a method of manufacture an intermetallic connection between an engine component made of an aluminum-based alloy and one Reinforcing part made of austenitic cast iron, the casting technology be connected to each other. Appropriate procedures are particularly isolated for the introduction of ring carriers also for inserting trough edge reinforcements in diesel engines applied.
  • the invention is therefore concerned with the problem that Strength of the intermetallic bond between the casting and Reinforcement part regardless of the use of a GGG or GGL material to increase.
  • An essential area of application for the invention lies in the production of pistons with reinforcement parts austenitic cast iron, with the reinforcement parts are preferably ring bearers.
  • the glow of the reinforcement parts must be in an oven atmosphere with oxidizing and reducing components, about the emergence of concentration differences through Diffusion of the nickel to the surface and the formation of To avoid iron oxides on the surface as much as possible a surface thus formed in the subsequent process steps is disturbing.
  • a reinforcement part made of austenitic cast material 1 with lamellar graphite formation is connected to a piston material AlSi12CuNiMg 2 by an Alfin layer 3.
  • the austenitic cast material is edge-graphitized in the area of the alfin bond to a depth of approx. 100-150 ⁇ m.
  • the de-graphitization is carried out by annealing the cast material in exogas, at temperatures of at least 800 ° C and preferably at temperatures> 1000 ° C.
  • the CO 2 and CO content and the dew point must be set so that there is a good decarburizing effect in order to achieve short annealing times. In the present case, the glow time was 25 minutes.
  • Alfin layer 3 are in place of the compact graphite flakes only loosened up, not coherent, pearl-cord-shaped Detect oxides that affect strength the Alfin layer is not, or at least significantly less impact as the graphite flakes of an unannealed austenitic cast iron.
  • FIG. 2 A conventional alfin layer is shown in FIG. 2 only for comparison shown.
  • the Alfin layer 4 is clear there recognizably interspersed with graphite lamellae that bind the alfin weaken because they act as defects.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • General Engineering & Computer Science (AREA)
  • Pistons, Piston Rings, And Cylinders (AREA)
  • Cylinder Crankcases Of Internal Combustion Engines (AREA)

Claims (1)

  1. Procédé de production d'une liaison intermétallique entre un élément de moteur constitué d'un premier alliage à base d'aluminium et une pièce d'armature en fonte austénitique qui sont assemblés par coulée, comprenant les étapes suivantes :
    a) recuit de la pièce d'armature dans une atmosphère de four à constituants gazeux oxydants et réducteurs en vue de la décomposition au moins partielle des lamelles ou des particules de graphite se trouvant dans la zone de la surface de la pièce d'armature,
    b) immersion de la pièce d'armature dans un bain d'un deuxième alliage à base d'aluminium en vue de la formation d'une couche intermétallique de liaison,
    c) enlèvement de la pièce d'armature du bain d'immersion, mise de la pièce d'armature dans un moule de coulée et, immédiatement après, coulée autour de la pièce d'armature du premier alliage à base d'aluminium.
EP96945136A 1995-10-11 1996-09-20 Procede de production d'une liaison intermetallique Expired - Lifetime EP0854763B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19537847 1995-10-11
DE19537847A DE19537847A1 (de) 1995-10-11 1995-10-11 Bewehrungsteil, dessen Grundwerkstoff austenitisches Gußeisen ist
PCT/DE1996/001808 WO1997013597A2 (fr) 1995-10-11 1996-09-20 Procede de production d'une liaison intermetallique

Publications (2)

Publication Number Publication Date
EP0854763A2 EP0854763A2 (fr) 1998-07-29
EP0854763B1 true EP0854763B1 (fr) 1999-09-01

Family

ID=7774578

Family Applications (1)

Application Number Title Priority Date Filing Date
EP96945136A Expired - Lifetime EP0854763B1 (fr) 1995-10-11 1996-09-20 Procede de production d'une liaison intermetallique

Country Status (6)

Country Link
US (1) US6112802A (fr)
EP (1) EP0854763B1 (fr)
JP (1) JPH11514931A (fr)
BR (1) BR9610925A (fr)
DE (2) DE19537847A1 (fr)
WO (1) WO1997013597A2 (fr)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU773579B2 (en) * 2000-08-10 2004-05-27 Breville Pty Ltd Improvements in forming metallic laminates
DE10103596A1 (de) * 2001-01-26 2002-08-01 Bruehl Eisenwerk Verfahren zur Herstellung eines aus wenigstens zwei unterschiedlichen Metallwerkstoffen gebildeten Gußwerkstücks
DE10103896A1 (de) * 2001-01-30 2002-08-08 Mahle Gmbh Verfahren zur Vorbehandlung eines Ringträgers vor dem Alfinieren
DE10137436C2 (de) * 2001-07-31 2003-07-31 Ks Kolbenschmidt Gmbh Voralfinieren von Eingußteilen
DE10153306B4 (de) * 2001-10-31 2010-07-15 Daimler Ag Verfahren zum Eingießen eines Einlegeteils
DE10157478A1 (de) * 2001-11-23 2003-06-05 Fne Gmbh Metall-Verbundwerkstoff und Verfahren zur Herstellung eines Metall-Verbundwerkstoffs
DE10205798A1 (de) * 2002-02-13 2003-09-04 Federal Mogul Wiesbaden Gmbh Einsatzteil in ein Ober-und/oder Unterteil oder eine Versteifungsrippe eines Lagerstuhls
EP1485514A1 (fr) * 2002-03-18 2004-12-15 Karl Merz Procede et dispositif d'alfination de pieces
DE102012011992A1 (de) * 2012-06-16 2013-12-19 Volkswagen Aktiengesellschaft Metallisches Gussbauteil und Verfahren zur Herstellung eines metallischen Gussbauteils
DE102012220645B3 (de) * 2012-11-13 2014-04-03 Federal-Mogul Nürnberg GmbH Kolben für einen Verbrennungsmotor und Verfahren zu dessen Herstellung

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1048677B (de) * 1959-01-15 Mahle-Werk Gesellschaft mit be schrankter Haftung, Fellbach (Wurtt) Verfahren zum Aufbringen eines Aluminium- bzw Alummiumoxyduberzuges auf aus einer Eisenlegierung - z B Gußeisen - bestehende und mit Leichtmetall im Druckgießverfahren zu umgießende Em lagestucke
US2620530A (en) * 1945-02-07 1952-12-09 United Engine & Machine Co Manufacture of pistons
US2550879A (en) * 1949-11-10 1951-05-01 Fairchild Engine & Airplane Bimetallic piston
DE901104C (de) * 1949-11-10 1954-01-07 Fairchild Engine And Airplane Verbundgussstueck und Verfahren zu dessen Herstellung
US2775493A (en) * 1953-11-27 1956-12-25 Gillett & Eaton Inc Piston with head insert and process of making it
JPS5125214B2 (fr) * 1973-02-09 1976-07-29
CH645562A5 (en) * 1980-06-19 1984-10-15 Sulzer Ag Process for welding workpieces of nodular cast iron
JPS59185567A (ja) * 1983-04-08 1984-10-22 Usui Internatl Ind Co Ltd 接着結合してなる鋳鉄部材の前処理方法
IT1183114B (it) * 1985-01-11 1987-10-05 Ass Eng Italia Pistone d'alluminio o di lega d'alluminio per motori a combustione interna
SU1507532A1 (ru) * 1987-10-13 1989-09-15 Научно-исследовательский институт автотракторных материалов Способ изготовлени отливок поршн из алюминиевого сплава с чугунной вставкой
DE4010474A1 (de) * 1990-03-31 1991-10-02 Kolbenschmidt Ag Leichtmetallkolben
DE4019983A1 (de) * 1990-06-22 1992-01-02 Kolbenschmidt Ag Leichtmetallkolben
US5333668A (en) * 1991-12-09 1994-08-02 Reynolds Metals Company Process for creation of metallurgically bonded inserts cast-in-place in a cast aluminum article
DE4221448A1 (de) * 1992-06-30 1994-01-13 Mahle Gmbh Bewehrungsmaterial für Kolben von Verbrennungsmotoren

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
Technische Mitteilungen,Heft 8,49.Jahrgang,aug.1956,Seiten 381-384: Uber das al-Fin-Verfahren Erfahrungen und Verwendungen, von Dipl.Phys. W.Thiele,Frankfurt a.M. *

Also Published As

Publication number Publication date
WO1997013597A3 (fr) 1997-06-05
WO1997013597A2 (fr) 1997-04-17
BR9610925A (pt) 1999-06-29
JPH11514931A (ja) 1999-12-21
EP0854763A2 (fr) 1998-07-29
US6112802A (en) 2000-09-05
DE59602965D1 (de) 1999-10-07
DE19537847A1 (de) 1997-04-17

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