FR3062323B1 - Procede de fabrication d'un noyau ceramique - Google Patents

Procede de fabrication d'un noyau ceramique Download PDF

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Publication number
FR3062323B1
FR3062323B1 FR1700088A FR1700088A FR3062323B1 FR 3062323 B1 FR3062323 B1 FR 3062323B1 FR 1700088 A FR1700088 A FR 1700088A FR 1700088 A FR1700088 A FR 1700088A FR 3062323 B1 FR3062323 B1 FR 3062323B1
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FR
France
Prior art keywords
block
manufacturing
ceramic
atomized
ceramic core
Prior art date
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Active
Application number
FR1700088A
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English (en)
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FR3062323A1 (fr
Inventor
Ramzi Bohli
Mirna Bechelany
Jerome Olivier Claus
Gregory Etchegoyen
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.)
Safran SA
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Safran SA
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Publication date
Application filed by Safran SA filed Critical Safran SA
Priority to FR1700088A priority Critical patent/FR3062323B1/fr
Publication of FR3062323A1 publication Critical patent/FR3062323A1/fr
Application granted granted Critical
Publication of FR3062323B1 publication Critical patent/FR3062323B1/fr
Active legal-status Critical Current
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22C—FOUNDRY MOULDING
    • B22C9/00—Moulds or cores; Moulding processes
    • B22C9/10—Cores; Manufacture or installation of cores
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22C—FOUNDRY MOULDING
    • B22C1/00—Compositions of refractory mould or core materials; Grain structures thereof; Chemical or physical features in the formation or manufacture of moulds
    • B22C1/02—Compositions of refractory mould or core materials; Grain structures thereof; Chemical or physical features in the formation or manufacture of moulds characterised by additives for special purposes, e.g. indicators, breakdown additives
    • B22C1/12—Compositions of refractory mould or core materials; Grain structures thereof; Chemical or physical features in the formation or manufacture of moulds characterised by additives for special purposes, e.g. indicators, breakdown additives for manufacturing permanent moulds or cores

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Chemical & Material Sciences (AREA)
  • Materials Engineering (AREA)
  • Powder Metallurgy (AREA)
  • Molds, Cores, And Manufacturing Methods Thereof (AREA)

Abstract

L'invention se situe dans le domaine de la fabrication par moulage de pièces métalliques creuses moulées à l'aide de noyaux céramiques. Elle concerne un procédé de fabrication de tels noyaux. Selon l'invention, le procédé (10) comprend : ▪ une étape (11) de préparation d'une suspension, dans laquelle une poudre céramique et un liant sont mélangés à un solvant, ▪ une étape (12) d'atomisation, dans laquelle la suspension est atomisée de manière à obtenir un mélange atomisé, ▪ une étape (14) de pressage, dans laquelle le mélange atomisé est soumis à une pression permettant l'agglomération du mélange atomisé, pour obtenir un bloc de poudre agglomérée, ▪ une étape (15) de cuisson comprenant une sous-étape de déliantage et une sous-étape de frittage du bloc de poudre agglomérée, pour obtenir un bloc fritté, et ▪ une étape (16) d'usinage du bloc fritté pour obtenir le noyau céramique.
FR1700088A 2017-01-30 2017-01-30 Procede de fabrication d'un noyau ceramique Active FR3062323B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR1700088A FR3062323B1 (fr) 2017-01-30 2017-01-30 Procede de fabrication d'un noyau ceramique

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR1700088A FR3062323B1 (fr) 2017-01-30 2017-01-30 Procede de fabrication d'un noyau ceramique
FR1700088 2017-01-30

Publications (2)

Publication Number Publication Date
FR3062323A1 FR3062323A1 (fr) 2018-08-03
FR3062323B1 true FR3062323B1 (fr) 2020-10-23

Family

ID=59152950

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1700088A Active FR3062323B1 (fr) 2017-01-30 2017-01-30 Procede de fabrication d'un noyau ceramique

Country Status (1)

Country Link
FR (1) FR3062323B1 (fr)

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2202541A (en) * 1987-02-24 1988-09-28 United Technologies Corp Method for manufacturing investment casting cores
GB2202542B (en) * 1987-02-24 1990-08-22 United Technologies Corp Ceramic core molding composition
FR2757847B1 (fr) * 1996-12-27 1999-03-19 Onera (Off Nat Aerospatiale) Procede de fabrication d'une piece ceramique structurale frittee en nitrure d'aluminium
DE10244486A1 (de) * 2002-09-24 2004-04-01 Gkn Sinter Metals Gmbh Mischung zur Herstellung von gesinterten Formteilen
DE102004017892B3 (de) * 2004-04-13 2005-11-03 Daimlerchrysler Ag Zerstörbarer Formkern für den metallischen Guss, Herstellung und Verwendung
FR2959507B1 (fr) * 2010-04-30 2014-01-03 Thales Sa Procede de fabrication d'un materiau composite ceramique a base de nitrure de silicium et de beta-eucryptite.
FR2977251B1 (fr) * 2011-06-30 2013-06-28 Commissariat Energie Atomique Procede de fabrication de pieces colorees en ceramique par pim

Also Published As

Publication number Publication date
FR3062323A1 (fr) 2018-08-03

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