GB1256058A - Apparatus and method for single cyrstal casting - Google Patents

Apparatus and method for single cyrstal casting

Info

Publication number
GB1256058A
GB1256058A GB01114/70A GB1111470A GB1256058A GB 1256058 A GB1256058 A GB 1256058A GB 01114/70 A GB01114/70 A GB 01114/70A GB 1111470 A GB1111470 A GB 1111470A GB 1256058 A GB1256058 A GB 1256058A
Authority
GB
United Kingdom
Prior art keywords
mould
shell
chill plate
solidification
casting
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.)
Expired
Application number
GB01114/70A
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 Aircraft 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 Aircraft Corp filed Critical United Aircraft Corp
Publication of GB1256058A publication Critical patent/GB1256058A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • 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
    • 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
    • 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
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S117/00—Single-crystal, oriented-crystal, and epitaxy growth processes; non-coating apparatus therefor
    • Y10S117/901—Levitation, reduced gravity, microgravity, space
    • Y10S117/902—Specified orientation, shape, crystallography, or size of seed or substrate

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)
  • Continuous Casting (AREA)

Abstract

1,256,058. Casting processes. UNITED AIRCRAFT CORP. 9 March, 1970 [13 March, 1969], No. 11114/70. Heading B3F. [Also in Division B1] Apparatus for use in casting single crystal articles comprises a shell 12 having an open bottom, a chill plate 10, and a mould 14 within the shell and spaced from the chill plate, the mould 14 having an opening 17 in its bottom surface and a non-rectilinear tube 18 extending from said opening towards the chill plate. In use, the apparatus is placed in a vacuum chamber and heated to a temperature above the melting point of the alloy to be cast. The molten metal is then poured through the sprue 24 until the shell 12 and mould 14 are filled to the required level and solidification initiated by the chill plate 10. The tube 18 is of such a shape e.g. helical, that it allows only one of the directionally solidified grains to grow into the mould 14 and initiate solidification therein. The heating of the mould 14 and shell is gradually reduced from the bottom to the top to maintain a substantially horizontal solid-liquid interface during solidification. In an embodiment, a ring of insulating material (30) is located under and spaced from the mould and a ring of filler cement (34) located on the top surface of the mould. The mould 14 may be somewhat porous to allow the escape of air during the filling process.
GB01114/70A 1969-03-13 1970-03-09 Apparatus and method for single cyrstal casting Expired GB1256058A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US80697869A 1969-03-13 1969-03-13

Publications (1)

Publication Number Publication Date
GB1256058A true GB1256058A (en) 1971-12-08

Family

ID=25195273

Family Applications (1)

Application Number Title Priority Date Filing Date
GB01114/70A Expired GB1256058A (en) 1969-03-13 1970-03-09 Apparatus and method for single cyrstal casting

Country Status (6)

Country Link
US (1) US3625275A (en)
CA (1) CA926736A (en)
DE (1) DE2009873B2 (en)
FR (1) FR2037187B1 (en)
GB (1) GB1256058A (en)
SE (1) SE360291B (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2196281A (en) * 1986-10-15 1988-04-27 Rex Hinchcliffe Directionally solidified light metal casting
GB2301303A (en) * 1980-12-30 1996-12-04 Snecma Manufacture of monocrystalline aerodynamic blades

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4251315A (en) * 1976-11-19 1981-02-17 Hughes Aircraft Company Method of growing metal halide and chalcogenide crystals for use as infrared windows
GB2100633B (en) * 1981-06-11 1985-02-13 Rolls Royce Selector device for use in the casting of single crystal objects
FR2734187A1 (en) * 1981-09-25 1996-11-22 Snecma Casting and directional solidification. of a cluster of turbine rotor vanes
US4475582A (en) * 1982-01-27 1984-10-09 United Technologies Corporation Casting a metal single crystal article using a seed crystal and a helix
DE4313836A1 (en) * 1993-04-29 1994-11-03 Uwe Dipl Ing Kaeckenhoff Casting process and casting mould
CN112222384A (en) * 2020-10-26 2021-01-15 哈尔滨工业大学 Method for preparing nickel-based high-temperature alloy component by solidification under pressure

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3494709A (en) * 1965-05-27 1970-02-10 United Aircraft Corp Single crystal metallic part
US3385346A (en) * 1965-08-26 1968-05-28 Trw Inc Method and apparatus for removal of condensed deposits from mold covers
US3515205A (en) * 1968-03-20 1970-06-02 United Aircraft Corp Mold construction forming single crystal pieces
US3538981A (en) * 1968-08-05 1970-11-10 United Aircraft Corp Apparatus for casting directionally solidified articles

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2301303A (en) * 1980-12-30 1996-12-04 Snecma Manufacture of monocrystalline aerodynamic blades
GB2301303B (en) * 1980-12-30 1997-10-22 Snecma Method for the manufacture of monocrystalline aerodynamic blades
GB2196281A (en) * 1986-10-15 1988-04-27 Rex Hinchcliffe Directionally solidified light metal casting
GB2196281B (en) * 1986-10-15 1991-04-03 Rex Hinchcliffe Method of and apparatus for, producing light alloy castings

Also Published As

Publication number Publication date
FR2037187B1 (en) 1974-07-12
US3625275A (en) 1971-12-07
DE2009873B2 (en) 1972-05-10
FR2037187A1 (en) 1970-12-31
SE360291B (en) 1973-09-24
DE2009873A1 (en) 1970-09-24
CA926736A (en) 1973-05-22

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