EP0276593A1 - Verfahren zur Herstellung von eine keramische Einlage enthaltenden metallischen Gussstücken - Google Patents

Verfahren zur Herstellung von eine keramische Einlage enthaltenden metallischen Gussstücken Download PDF

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Publication number
EP0276593A1
EP0276593A1 EP87402809A EP87402809A EP0276593A1 EP 0276593 A1 EP0276593 A1 EP 0276593A1 EP 87402809 A EP87402809 A EP 87402809A EP 87402809 A EP87402809 A EP 87402809A EP 0276593 A1 EP0276593 A1 EP 0276593A1
Authority
EP
European Patent Office
Prior art keywords
insert
metal
ceramic
electro
deposition
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
EP87402809A
Other languages
English (en)
French (fr)
Other versions
EP0276593B1 (de
Inventor
Daniel Gapin
Christian Jouin
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.)
Automobiles Peugeot SA
Automobiles Citroen SA
Original Assignee
Automobiles Peugeot SA
Automobiles Citroen 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 Automobiles Peugeot SA, Automobiles Citroen SA filed Critical Automobiles Peugeot SA
Publication of EP0276593A1 publication Critical patent/EP0276593A1/de
Application granted granted Critical
Publication of EP0276593B1 publication Critical patent/EP0276593B1/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
    • B22D19/14—Casting in, on, or around objects which form part of the product the objects being filamentary or particulate in form
    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
    • C25D13/00—Electrophoretic coating characterised by the process
    • C25D13/02—Electrophoretic coating characterised by the process with inorganic material

Definitions

  • the present invention relates to a method for manufacturing cast metal parts, in particular of light alloy comprising an insert of ceramic material.
  • the insert can for example function as an internal coating on parts such as pipes or exhaust manifolds in order to thermally insulate them.
  • the parts thus obtained combine the properties of mechanical strength, lightness and thermal insulation.
  • the method according to the invention aims to remedy these difficulties.
  • This process is characterized in that, before the casting of the metal, a flexible mattress of ceramic fibers is deposited on the insert by electro-deposition, for example by anaphoresis.
  • a metal part 1 comprising an insert 2 of ceramic material
  • the insert is made to the desired shape, a flexible mattress 3 of fibers of ceramic material is deposited on this insert, and a mold 4 is placed in a mold. the insert thus coated and the metal 1 is poured into the mold ( Figure 2).
  • the insert 2 is made electrically conductive by a metallic deposit 5 in a thin layer, this deposit being effected by means of a plasma, a paint or a varnish, the insert with its deposit is immersed in a bath 6 made up of ceramic fibers and colloidal silica suspended in water, and the metal deposit 5 is connected to the positive pole of a voltage source of which the negative pole is connected to one electrode 7 immersed in suspension 6; the ceramic fibers of the suspension are thus deposited by anaphoresis on the insert 2 to form the fiber mat 3.
  • the colloidal silica in suspension 6 has a triple role: - modify the pH of the suspension to make it electrically conductive. - entrain the fibers towards the surface of the part 2 to be coated. - Ensure the cohesion of the fibers between them on the surface of part 2 and bind the deposit to the surface of the part (role of cement, silica depositing in the form of gel).
  • the mattress 3 can be produced in a few minutes; for example in five to ten minutes, in the case of a mattress two millimeters thick.
  • the insert After formation of the mattress 3, the insert is dried in ambient air and then steamed to remove the excess water; high temperature heat treatment dehydrates the gel and sinter the silica.
  • the deformation power of the fibrous mat obtained 3 depends on the concentration of silica in the bath (percentage of silica / percentage of fibers deposited), that is to say the ratio between the percentage of silica and that of fibers deposited.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Inorganic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Chemical Or Physical Treatment Of Fibers (AREA)
  • Manufacture Of Alloys Or Alloy Compounds (AREA)
EP19870402809 1986-12-18 1987-12-11 Verfahren zur Herstellung von eine keramische Einlage enthaltenden metallischen Gussstücken Expired - Lifetime EP0276593B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8618129A FR2608476B1 (fr) 1986-12-18 1986-12-18 Procede de fabrication de pieces metalliques coulees comportant un insert en matiere ceramique
FR8618129 1986-12-18

Publications (2)

Publication Number Publication Date
EP0276593A1 true EP0276593A1 (de) 1988-08-03
EP0276593B1 EP0276593B1 (de) 1990-02-07

Family

ID=9342268

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19870402809 Expired - Lifetime EP0276593B1 (de) 1986-12-18 1987-12-11 Verfahren zur Herstellung von eine keramische Einlage enthaltenden metallischen Gussstücken

Country Status (3)

Country Link
EP (1) EP0276593B1 (de)
DE (1) DE3761614D1 (de)
FR (1) FR2608476B1 (de)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0440093A1 (de) * 1990-01-26 1991-08-07 Isuzu Motors Limited Gusswerkstück mit keramischer Verstärkungseinlage und Verfahren zu dessen Herstellung
DE19814018A1 (de) * 1998-03-28 1999-09-30 Andreas Roosen Verfahren zur Herstellung von Verbundwerkstoffen mit mindestens einer keramischen Komponente
US10493677B2 (en) * 2014-11-21 2019-12-03 Solvay Specialty Polymers Usa, Llc Overmolded inserts and methods for forming the same
EP4166257A1 (de) * 2021-10-13 2023-04-19 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Verbundgussverfahren unter verformung eines einlegeteils zur vermeidung von ein- oder abrissen zwischen gussmetall und einlegeteil sowie verbundbauteil

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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.
US5616421A (en) * 1991-04-08 1997-04-01 Aluminum Company Of America Metal matrix composites containing electrical insulators

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB860290A (en) * 1957-07-19 1961-02-01 Platecraft Of America Inc Electroformed article and a method of making the same
DE2430753A1 (de) * 1973-07-31 1975-02-13 Nissan Motor Verfahren zum aufbringen eines gammaaluminiumoxydueberzugs auf die oberflaeche eines feuerfesten formkoerpers
US3966576A (en) * 1974-07-15 1976-06-29 Ppg Industries, Inc. Electrophoretic deposition of asbestos diaphragms
US4318438A (en) * 1977-09-27 1982-03-09 Honda Giken Kogyo Kabushiki Kaisha Method for casting a fiber-reinforced composite article

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5964150A (ja) * 1982-10-06 1984-04-12 Toyota Motor Corp セラミツクスと金属の接合方法
JPS60240366A (ja) * 1984-05-15 1985-11-29 Toyota Motor Corp セラミツクス体の鋳ぐるみ方法

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB860290A (en) * 1957-07-19 1961-02-01 Platecraft Of America Inc Electroformed article and a method of making the same
DE2430753A1 (de) * 1973-07-31 1975-02-13 Nissan Motor Verfahren zum aufbringen eines gammaaluminiumoxydueberzugs auf die oberflaeche eines feuerfesten formkoerpers
US3966576A (en) * 1974-07-15 1976-06-29 Ppg Industries, Inc. Electrophoretic deposition of asbestos diaphragms
US4318438A (en) * 1977-09-27 1982-03-09 Honda Giken Kogyo Kabushiki Kaisha Method for casting a fiber-reinforced composite article

Non-Patent Citations (3)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN, vol. 10, no. 109 (M-472), 23 avril 1986; & JP-A-60 240 366 (TOYOTA JIDOSHA K.K.) 29-11-1985 *
PATENT ABSTRACTS OF JAPAN, vol. 11, no. 184 (C-427)[2631], 12 juin 1987; & JP-A-62 004 844 (TOSHIBA CORP.) 10-01-1987 *
PATENT ABSTRACTS OF JAPAN, vol. 8, no. 170 (M-315), 7 août 1984; & JP-A-59 064 150 (TOYOTA JIDOSHA K.K.) 12-04-1984 *

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0440093A1 (de) * 1990-01-26 1991-08-07 Isuzu Motors Limited Gusswerkstück mit keramischer Verstärkungseinlage und Verfahren zu dessen Herstellung
DE19814018A1 (de) * 1998-03-28 1999-09-30 Andreas Roosen Verfahren zur Herstellung von Verbundwerkstoffen mit mindestens einer keramischen Komponente
US10493677B2 (en) * 2014-11-21 2019-12-03 Solvay Specialty Polymers Usa, Llc Overmolded inserts and methods for forming the same
EP4166257A1 (de) * 2021-10-13 2023-04-19 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Verbundgussverfahren unter verformung eines einlegeteils zur vermeidung von ein- oder abrissen zwischen gussmetall und einlegeteil sowie verbundbauteil

Also Published As

Publication number Publication date
FR2608476A1 (fr) 1988-06-24
DE3761614D1 (de) 1990-03-15
EP0276593B1 (de) 1990-02-07
FR2608476B1 (fr) 1989-05-12

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