FR3135908B1 - Soluble core for manufacturing hollow parts - Google Patents

Soluble core for manufacturing hollow parts Download PDF

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Publication number
FR3135908B1
FR3135908B1 FR2205150A FR2205150A FR3135908B1 FR 3135908 B1 FR3135908 B1 FR 3135908B1 FR 2205150 A FR2205150 A FR 2205150A FR 2205150 A FR2205150 A FR 2205150A FR 3135908 B1 FR3135908 B1 FR 3135908B1
Authority
FR
France
Prior art keywords
core
soluble core
mold
hollow parts
mass content
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
FR2205150A
Other languages
French (fr)
Other versions
FR3135908A1 (en
Inventor
Sofia Haifi
Nicolas Tran
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 Seats SA
Safran SA
Original Assignee
Safran Seats SA
Safran 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 Safran Seats SA, Safran SA filed Critical Safran Seats SA
Priority to FR2205150A priority Critical patent/FR3135908B1/en
Publication of FR3135908A1 publication Critical patent/FR3135908A1/en
Application granted granted Critical
Publication of FR3135908B1 publication Critical patent/FR3135908B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C33/00—Moulds or cores; Details thereof or accessories therefor
    • B29C33/44—Moulds or cores; Details thereof or accessories therefor with means for, or specially constructed to facilitate, the removal of articles, e.g. of undercut articles
    • B29C33/52—Moulds or cores; Details thereof or accessories therefor with means for, or specially constructed to facilitate, the removal of articles, e.g. of undercut articles soluble or fusible
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/17—Component parts, details or accessories; Auxiliary operations
    • B29C45/40—Removing or ejecting moulded articles
    • B29C45/44—Removing or ejecting moulded articles for undercut articles
    • B29C45/4457—Removing or ejecting moulded articles for undercut articles using fusible, soluble or destructible cores
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B33—ADDITIVE MANUFACTURING TECHNOLOGY
    • B33Y—ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
    • B33Y70/00—Materials specially adapted for additive manufacturing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B33—ADDITIVE MANUFACTURING TECHNOLOGY
    • B33Y—ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
    • B33Y80/00—Products made by additive manufacturing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B33—ADDITIVE MANUFACTURING TECHNOLOGY
    • B33Y—ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
    • B33Y10/00—Processes of additive manufacturing

Landscapes

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

Abstract

Noyau soluble pour la fabrication de pièces creuses. L’invention concerne un procédé de fabrication d’un noyau soluble comprenant les étapes suivantes : le mélange (E1) de trois poudres à une température comprise entre 315°C et 325°C, le mélange comprenant : une poudre de nitrate de sodium (NaNO3) pour une teneur massique de 13,3% ; une poudre de silicate de zirconium (SiO4Zr) pour une teneur massique de 33,3 % ; etune poudre de nitrate de potassium (KNO3) pour une teneur massique de 53,4 %, les teneurs massiques étant données par rapport au poids total de la composition ;le coulage par gravité (E2) du mélange obtenu dans un moule à la géométrie souhaitée pour le noyau soluble, le moule étant chauffé à une température comprise entre 100°C et 200°C ; le refroidissement (E3) du noyau dans le moule pendant une durée de 1 à 3 minutes ; puis le démoulage (E4) du noyau.Soluble core for manufacturing hollow parts. The invention relates to a method for manufacturing a soluble core comprising the following steps: mixing (E1) three powders at a temperature between 315°C and 325°C, the mixture comprising: a sodium nitrate powder ( NaNO3) for a mass content of 13.3%; a zirconium silicate powder (SiO4Zr) with a mass content of 33.3%; anda potassium nitrate powder (KNO3) for a mass content of 53.4%, the mass contents being given in relation to the total weight of the composition; gravity casting (E2) of the mixture obtained in a mold with the desired geometry for the soluble core, the mold being heated to a temperature between 100°C and 200°C; cooling (E3) the core in the mold for a period of 1 to 3 minutes; then demolding (E4) of the core.

FR2205150A 2022-05-30 2022-05-30 Soluble core for manufacturing hollow parts Active FR3135908B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR2205150A FR3135908B1 (en) 2022-05-30 2022-05-30 Soluble core for manufacturing hollow parts

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR2205150A FR3135908B1 (en) 2022-05-30 2022-05-30 Soluble core for manufacturing hollow parts
FR2205150 2022-05-30

Publications (2)

Publication Number Publication Date
FR3135908A1 FR3135908A1 (en) 2023-12-01
FR3135908B1 true FR3135908B1 (en) 2024-05-24

Family

ID=83188143

Family Applications (1)

Application Number Title Priority Date Filing Date
FR2205150A Active FR3135908B1 (en) 2022-05-30 2022-05-30 Soluble core for manufacturing hollow parts

Country Status (1)

Country Link
FR (1) FR3135908B1 (en)

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102007008149A1 (en) * 2007-02-19 2008-08-21 Ashland-Südchemie-Kernfest GmbH Thermal regeneration of foundry sand
WO2015055838A1 (en) * 2013-10-19 2015-04-23 Peak Deutschland Gmbh Method for producing lost cores or molded parts for the production of cast parts
DE102018200607A1 (en) * 2018-01-15 2019-07-18 Reinsicht Gmbh Process for the production of molds and cores suitable for the manufacture of fiber composite bodies or castings of metal or plastic, mold bases and binders usable in the process and molds and cores produced by the process
DE102019116702A1 (en) * 2019-06-19 2020-12-24 Ask Chemicals Gmbh Sized casting molds obtainable from a molding material mixture containing an inorganic binder and phosphate and oxidic boron compounds, a process for their production and their use

Also Published As

Publication number Publication date
FR3135908A1 (en) 2023-12-01

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