FR2444092A1 - METHOD AND APPARATUS FOR SOLIDIFYING A FUSED METAL TO AN ARTICLE HAVING A DIRECTED CRYSTALLOGRAPHIC ORIENTATION - Google Patents

METHOD AND APPARATUS FOR SOLIDIFYING A FUSED METAL TO AN ARTICLE HAVING A DIRECTED CRYSTALLOGRAPHIC ORIENTATION

Info

Publication number
FR2444092A1
FR2444092A1 FR7930535A FR7930535A FR2444092A1 FR 2444092 A1 FR2444092 A1 FR 2444092A1 FR 7930535 A FR7930535 A FR 7930535A FR 7930535 A FR7930535 A FR 7930535A FR 2444092 A1 FR2444092 A1 FR 2444092A1
Authority
FR
France
Prior art keywords
molten metal
article
directed
solidifying
crystallographic orientation
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
FR7930535A
Other languages
French (fr)
Other versions
FR2444092B1 (en
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.)
Raytheon Technologies Corp
Original Assignee
United Technologies Corp
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 United Technologies Corp filed Critical United Technologies Corp
Publication of FR2444092A1 publication Critical patent/FR2444092A1/en
Application granted granted Critical
Publication of FR2444092B1 publication Critical patent/FR2444092B1/fr
Granted legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C30—CRYSTAL GROWTH
    • C30B—SINGLE-CRYSTAL GROWTH; UNIDIRECTIONAL SOLIDIFICATION OF EUTECTIC MATERIAL OR UNIDIRECTIONAL DEMIXING OF EUTECTOID MATERIAL; REFINING BY ZONE-MELTING OF MATERIAL; PRODUCTION OF A HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; SINGLE CRYSTALS OR HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; AFTER-TREATMENT OF SINGLE CRYSTALS OR A HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; APPARATUS THEREFOR
    • C30B11/00—Single-crystal growth by normal freezing or freezing under temperature gradient, e.g. Bridgman-Stockbarger method
    • C30B11/14—Single-crystal growth by normal freezing or freezing under temperature gradient, e.g. Bridgman-Stockbarger method characterised by the seed, e.g. its crystallographic orientation
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D27/00—Treating the metal in the mould while it is molten or ductile ; Pressure or vacuum casting
    • B22D27/04—Influencing the temperature of the metal, e.g. by heating or cooling the mould
    • B22D27/045—Directionally solidified castings
    • C—CHEMISTRY; METALLURGY
    • C30—CRYSTAL GROWTH
    • C30B—SINGLE-CRYSTAL GROWTH; UNIDIRECTIONAL SOLIDIFICATION OF EUTECTIC MATERIAL OR UNIDIRECTIONAL DEMIXING OF EUTECTOID MATERIAL; REFINING BY ZONE-MELTING OF MATERIAL; PRODUCTION OF A HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; SINGLE CRYSTALS OR HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; AFTER-TREATMENT OF SINGLE CRYSTALS OR A HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; APPARATUS THEREFOR
    • C30B11/00—Single-crystal growth by normal freezing or freezing under temperature gradient, e.g. Bridgman-Stockbarger method
    • C—CHEMISTRY; METALLURGY
    • C30—CRYSTAL GROWTH
    • C30B—SINGLE-CRYSTAL GROWTH; UNIDIRECTIONAL SOLIDIFICATION OF EUTECTIC MATERIAL OR UNIDIRECTIONAL DEMIXING OF EUTECTOID MATERIAL; REFINING BY ZONE-MELTING OF MATERIAL; PRODUCTION OF A HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; SINGLE CRYSTALS OR HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; AFTER-TREATMENT OF SINGLE CRYSTALS OR A HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; APPARATUS THEREFOR
    • C30B29/00—Single crystals or homogeneous polycrystalline material with defined structure characterised by the material or by their shape
    • C30B29/10—Inorganic compounds or compositions
    • C30B29/52—Alloys

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Mechanical Engineering (AREA)
  • Inorganic Chemistry (AREA)
  • Crystals, And After-Treatments Of Crystals (AREA)
  • Refinement Of Pig-Iron, Manufacture Of Cast Iron, And Steel Manufacture Other Than In Revolving Furnaces (AREA)
  • Liquid Deposition Of Substances Of Which Semiconductor Devices Are Composed (AREA)
  • Manufacture And Refinement Of Metals (AREA)

Abstract

La présente invention concerne un appareil et un procédé pour la solidification de métal en fusion en un article ayant une orientation cristallographique dirigée. L'appareil comprend une section d'amorçage qui est adaptée pour contenir un cristal-germe et recevoir du métal en fusion. Le métal en fusion coule sur le cristal-germe et l'entoure pour le chauffer et obtenir sa fusion partielle. Une section de sélection dans cet appareil a une section transversale plus étroite par comparaison à celle de la cavité d'amorçage de sorte qu'on obtient seulement une solidification épitaxiale du métal dans la cavité de l'article. Une couche protectrice résistante au métal en fusion est également appliquée à des parties du cristal-germe pour faciliter sa séparation du métal en fusion ayant solidifié et sa réutilisation.The present invention relates to an apparatus and method for solidifying molten metal into an article having a directed crystallographic orientation. The apparatus includes an initiating section which is adapted to contain a seed crystal and receive molten metal. The molten metal flows over the seed crystal and surrounds it to heat it and obtain its partial fusion. A selection section in this apparatus has a narrower cross section compared to that of the initiation cavity so that only epitaxial solidification of the metal in the article cavity is obtained. A protective layer resistant to molten metal is also applied to parts of the seed crystal to facilitate its separation from the molten metal which has solidified and its reuse.

FR7930535A 1978-12-13 1979-12-06 METHOD AND APPARATUS FOR SOLIDIFYING A FUSED METAL TO AN ARTICLE HAVING A DIRECTED CRYSTALLOGRAPHIC ORIENTATION Granted FR2444092A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US96913078A 1978-12-13 1978-12-13

Publications (2)

Publication Number Publication Date
FR2444092A1 true FR2444092A1 (en) 1980-07-11
FR2444092B1 FR2444092B1 (en) 1984-05-11

Family

ID=25515222

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7930535A Granted FR2444092A1 (en) 1978-12-13 1979-12-06 METHOD AND APPARATUS FOR SOLIDIFYING A FUSED METAL TO AN ARTICLE HAVING A DIRECTED CRYSTALLOGRAPHIC ORIENTATION

Country Status (14)

Country Link
JP (1) JPS5581064A (en)
BE (1) BE880402A (en)
BR (1) BR7908118A (en)
CA (1) CA1142839A (en)
CH (1) CH644408A5 (en)
DE (1) DE2949446A1 (en)
DK (1) DK158629C (en)
FR (1) FR2444092A1 (en)
GB (1) GB2037200B (en)
IL (1) IL58882A (en)
IT (1) IT1127731B (en)
NL (1) NL185271C (en)
NO (1) NO794028L (en)
SE (1) SE7910137L (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0059549A2 (en) * 1981-03-02 1982-09-08 PCC Airfoils, Inc. Method of casting an article
FR2531357A1 (en) * 1982-08-05 1984-02-10 Howmet Turbine Components METHOD AND MEANS FOR MOLDING ARTICLES HAVING PREDETERMINED CRYSTALLINE ORIENTATION
EP0171343A1 (en) * 1984-05-11 1986-02-12 United Technologies Corporation Polygon cross section seed for directional solidification
WO1991009209A1 (en) * 1989-12-11 1991-06-27 Allied-Signal Inc. Radial turbine rotor with improved saddle life
EP0496978A1 (en) * 1990-12-13 1992-08-05 SULZER- MTU CASTING TECHNOLOGY GmbH Process and apparatus for producing single crystal motor blades

Families Citing this family (24)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4289570A (en) * 1978-12-13 1981-09-15 United Technologies Corporation Seed and method for epitaxial solidification
FR2734187A1 (en) * 1981-09-25 1996-11-22 Snecma Casting and directional solidification. of a cluster of turbine rotor vanes
GB2110299A (en) * 1981-11-03 1983-06-15 Rolls Royce I.C. engine poppet valve
US4605452A (en) * 1981-12-14 1986-08-12 United Technologies Corporation Single crystal articles having controlled secondary crystallographic orientation
US4475582A (en) * 1982-01-27 1984-10-09 United Technologies Corporation Casting a metal single crystal article using a seed crystal and a helix
US4412577A (en) * 1982-01-27 1983-11-01 United Technologies Corporation Control of seed melt-back during directional solidification of metals
US4612969A (en) * 1983-04-27 1986-09-23 Howmet Turbine Components Corporation Method of and apparatus for casting articles with predetermined crystalline orientation
GB2212890B (en) * 1984-07-04 1989-11-22 Wisotzki Juergen Funnel-shaped or shell-shaped insert for hollow charges and a process and a mould for producing it.
US5291937A (en) * 1992-07-30 1994-03-08 General Electric Company Method for providing an extension on an end of an article having internal passageways
US5304039A (en) * 1992-07-30 1994-04-19 General Electric Company Method for providing an extension on an end of an article and extended article
DE19526344C1 (en) * 1995-07-19 1996-08-08 Mtu Muenchen Gmbh Rotor blade for turbo engine
DE19611866A1 (en) * 1996-03-26 1997-10-02 Lyulka Saturn Inc Casting mould for production of single crystal casting having growth cavity and nucleation cavity
US6103993A (en) * 1996-07-10 2000-08-15 Mtu Motoren-Und Turbinen-Union Munchen Gmbh Hollow rotor blade of columnar structure having a single crystal column in which a series of holes are laser drilled
US7343960B1 (en) 1998-11-20 2008-03-18 Rolls-Royce Corporation Method and apparatus for production of a cast component
US6932145B2 (en) 1998-11-20 2005-08-23 Rolls-Royce Corporation Method and apparatus for production of a cast component
US6497272B1 (en) 1999-10-14 2002-12-24 Howmet Research Corporation Single crystal casting mold
DE10033688B4 (en) * 2000-07-11 2008-04-24 Alstom Technology Ltd. Process for the production of directionally solidified castings
US7575038B2 (en) * 2001-06-11 2009-08-18 Howmet Research Corporation Single crystal seed
US20050211408A1 (en) * 2004-03-25 2005-09-29 Bullied Steven J Single crystal investment cast components and methods of making same
CN1332070C (en) * 2004-12-24 2007-08-15 中国科学院金属研究所 Structure of initiating terminal in directional solidification in method of seed crystal, and application
US11377753B2 (en) * 2019-10-04 2022-07-05 Raytheon Technologies Corporation Arcuate seed casting method
US11198175B2 (en) 2019-10-04 2021-12-14 Raytheon Technologies Corporation Arcuate seed casting method
US11383295B2 (en) 2019-10-04 2022-07-12 Raytheon Technologies Corporation Arcuate seed casting method
CN111364096B (en) * 2020-03-30 2021-01-22 上海交通大学 Substrate-triggered single crystal high-temperature alloy directional solidification process

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2152649A1 (en) * 1971-09-15 1973-04-27 United Aircraft Corp
US3759310A (en) * 1971-08-30 1973-09-18 United Aircraft Corp Nsumable electrode method and apparatus for providing single crystal castings using a co
US4015657A (en) * 1975-09-03 1977-04-05 Dmitry Andreevich Petrov Device for making single-crystal products

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1793672A (en) * 1926-02-16 1931-02-24 Percy W Bridgman Crystals and their manufacture
DE1069389B (en) * 1954-10-28 1959-11-19 Jean de Gaillard de la Valdene, Palm Beach, Fla. (V. St. A.) Method and apparatus for growing single crystals
NL136758C (en) * 1963-10-21 1900-01-01
US3494709A (en) * 1965-05-27 1970-02-10 United Aircraft Corp Single crystal metallic part
US3598169A (en) * 1969-03-13 1971-08-10 United Aircraft Corp Method and apparatus for casting directionally solidified discs and the like
US3857436A (en) * 1973-02-13 1974-12-31 D Petrov Method and apparatus for manufacturing monocrystalline articles
US3895672A (en) * 1973-12-26 1975-07-22 United Aircraft Corp Integrated furnace method and apparatus for the continuous production of individual castings

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3759310A (en) * 1971-08-30 1973-09-18 United Aircraft Corp Nsumable electrode method and apparatus for providing single crystal castings using a co
FR2152649A1 (en) * 1971-09-15 1973-04-27 United Aircraft Corp
US4015657A (en) * 1975-09-03 1977-04-05 Dmitry Andreevich Petrov Device for making single-crystal products

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0059549A2 (en) * 1981-03-02 1982-09-08 PCC Airfoils, Inc. Method of casting an article
EP0059549A3 (en) * 1981-03-02 1984-04-04 Trw Inc. Method of casting an article
FR2531357A1 (en) * 1982-08-05 1984-02-10 Howmet Turbine Components METHOD AND MEANS FOR MOLDING ARTICLES HAVING PREDETERMINED CRYSTALLINE ORIENTATION
EP0171343A1 (en) * 1984-05-11 1986-02-12 United Technologies Corporation Polygon cross section seed for directional solidification
WO1991009209A1 (en) * 1989-12-11 1991-06-27 Allied-Signal Inc. Radial turbine rotor with improved saddle life
EP0496978A1 (en) * 1990-12-13 1992-08-05 SULZER- MTU CASTING TECHNOLOGY GmbH Process and apparatus for producing single crystal motor blades

Also Published As

Publication number Publication date
NL185271B (en) 1989-10-02
IT7928074A0 (en) 1979-12-17
CH644408A5 (en) 1984-07-31
DK529479A (en) 1980-06-14
JPS5581064A (en) 1980-06-18
GB2037200B (en) 1983-02-09
JPS6358669B2 (en) 1988-11-16
GB2037200A (en) 1980-07-09
FR2444092B1 (en) 1984-05-11
IT1127731B (en) 1986-05-21
BE880402A (en) 1980-04-01
BR7908118A (en) 1980-07-29
DE2949446A1 (en) 1980-06-26
DK158629B (en) 1990-06-25
CA1142839A (en) 1983-03-15
NL185271C (en) 1990-03-01
NL7908785A (en) 1980-06-17
IL58882A0 (en) 1980-03-31
NO794028L (en) 1980-06-16
DK158629C (en) 1990-11-26
DE2949446C2 (en) 1989-01-26
IL58882A (en) 1982-12-31
SE7910137L (en) 1980-06-14

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