FR2988022B1 - Procede de fabrication d'un secteur de stator a aubes creuses pour turbine a gaz. - Google Patents

Procede de fabrication d'un secteur de stator a aubes creuses pour turbine a gaz. Download PDF

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Publication number
FR2988022B1
FR2988022B1 FR1252420A FR1252420A FR2988022B1 FR 2988022 B1 FR2988022 B1 FR 2988022B1 FR 1252420 A FR1252420 A FR 1252420A FR 1252420 A FR1252420 A FR 1252420A FR 2988022 B1 FR2988022 B1 FR 2988022B1
Authority
FR
France
Prior art keywords
wax
mold
gas turbine
manufacturing
blades
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.)
Active
Application number
FR1252420A
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English (en)
Other versions
FR2988022A1 (fr
Inventor
Romain Roullet
Damien Alquier
Sebastien Congratel
Philippe Metron
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 Aircraft Engines SAS
Original Assignee
SNECMA SAS
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 SNECMA SAS filed Critical SNECMA SAS
Priority to FR1252420A priority Critical patent/FR2988022B1/fr
Publication of FR2988022A1 publication Critical patent/FR2988022A1/fr
Application granted granted Critical
Publication of FR2988022B1 publication Critical patent/FR2988022B1/fr
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22C—FOUNDRY MOULDING
    • B22C7/00—Patterns; Manufacture thereof so far as not provided for in other classes
    • B22C7/02—Lost patterns
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22C—FOUNDRY MOULDING
    • B22C9/00—Moulds or cores; Moulding processes
    • B22C9/02—Sand moulds or like moulds for shaped castings
    • B22C9/04—Use of lost patterns
    • 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
    • B22C9/108—Installation of cores
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
    • F01D11/00—Preventing or minimising internal leakage of working-fluid, e.g. between stages
    • F01D11/001—Preventing or minimising internal leakage of working-fluid, e.g. between stages for sealing space between stator blade and rotor
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
    • F01D9/00—Stators
    • F01D9/02—Nozzles; Nozzle boxes; Stator blades; Guide conduits, e.g. individual nozzles
    • F01D9/04—Nozzles; Nozzle boxes; Stator blades; Guide conduits, e.g. individual nozzles forming ring or sector
    • F01D9/041—Nozzles; Nozzle boxes; Stator blades; Guide conduits, e.g. individual nozzles forming ring or sector using blades
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
    • F05D2230/00—Manufacture
    • F05D2230/20—Manufacture essentially without removing material
    • F05D2230/21—Manufacture essentially without removing material by casting
    • F05D2230/211—Manufacture essentially without removing material by casting by precision casting, e.g. microfusing or investment casting
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T50/00—Aeronautics or air transport
    • Y02T50/60—Efficient propulsion technologies, e.g. for aircraft

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Molds, Cores, And Manufacturing Methods Thereof (AREA)

Abstract

Procédé de fabrication par fonderie à la cire perdue dans un moule d'injection de cire d'un secteur de stator pour turbine à gaz comprenant une pluralité d'aubes (6), entre une plateforme (8) radialement intérieure et une plateforme radialement extérieure, à l'intérieur desquelles est ménagée une cavité interne, le secteur comprenant une bride (9) s'étendant radialement intérieurement, de laquelle s'étend transversalement une patte aval (30) configurée pour recevoir, sur sa surface intérieure, un élément monobloc en matériau abradable (32), le procédé comprenant les étapes suivantes : - (E0) positionnement sur des douilles de maintien du moule, disposées côte à côte, d'une pluralité de noyaux, - (E1) injection de cire dans le moule autour desdites pales de sorte à créer un modèle en cire, - (E2) démoulage du modèle en cire, - (E3) création d'un moule carapace en matière céramique autour dudit modèle en cire, - (E4) coulage de métal en fusion dans le moule carapace de sorte à remplacer la cire dans le moule carapace par ledit métal, - (E5) élimination du noyau, procédé caractérisé en ce que l'étape (E1) d'injection de cire configure la bride (27') en amont de sorte à autoriser le retrait des douilles.
FR1252420A 2012-03-16 2012-03-16 Procede de fabrication d'un secteur de stator a aubes creuses pour turbine a gaz. Active FR2988022B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR1252420A FR2988022B1 (fr) 2012-03-16 2012-03-16 Procede de fabrication d'un secteur de stator a aubes creuses pour turbine a gaz.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR1252420A FR2988022B1 (fr) 2012-03-16 2012-03-16 Procede de fabrication d'un secteur de stator a aubes creuses pour turbine a gaz.

Publications (2)

Publication Number Publication Date
FR2988022A1 FR2988022A1 (fr) 2013-09-20
FR2988022B1 true FR2988022B1 (fr) 2023-12-08

Family

ID=46489388

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1252420A Active FR2988022B1 (fr) 2012-03-16 2012-03-16 Procede de fabrication d'un secteur de stator a aubes creuses pour turbine a gaz.

Country Status (1)

Country Link
FR (1) FR2988022B1 (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104325080B (zh) * 2014-10-30 2016-06-22 西安航空动力股份有限公司 一种多叶组导叶精铸模具的收缩率设计方法
US10934875B2 (en) * 2015-04-15 2021-03-02 Raytheon Technologies Corporation Seal configuration to prevent rotor lock
FR3076749B1 (fr) * 2018-01-15 2020-01-17 Safran Aircraft Engines Procede de fabrication d'un modele en cire pour fabrication a cire perdue d'une piece metallique d'aeronef
CN111604477B (zh) * 2020-06-10 2021-12-14 山东鑫聚龙动力科技集团有限公司 一种发动机机匣的制作方法

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH364588A (fr) * 1956-07-20 1962-09-30 Fairey Aviat Limited Procédé de fabrication d'un modèle en cire d'un article creux
DE4238851A1 (de) * 1992-11-18 1994-05-19 Kolbenschmidt Ag Wasserlöslicher Salzkern für das Kokillengießen und Einrichtung zur Befestigung des Salzkerns
DE102007014146A1 (de) * 2007-03-23 2007-11-22 Daimlerchrysler Ag Druckgießwerkzeug
FR2950825B1 (fr) * 2009-10-01 2011-12-09 Snecma Procede ameliore de fabrication d'un ensemble annulaire aubage de turbomachine a la cire perdue, moule metallique et modele en cire pour la mise en oeuvre d'un tel procede

Also Published As

Publication number Publication date
FR2988022A1 (fr) 2013-09-20

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