GB1405768A - Casting processes employing coated moulds - Google Patents

Casting processes employing coated moulds

Info

Publication number
GB1405768A
GB1405768A GB5845672A GB5845672A GB1405768A GB 1405768 A GB1405768 A GB 1405768A GB 5845672 A GB5845672 A GB 5845672A GB 5845672 A GB5845672 A GB 5845672A GB 1405768 A GB1405768 A GB 1405768A
Authority
GB
United Kingdom
Prior art keywords
mould
casting
core
ingredient
coating
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
GB5845672A
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 GB1405768A publication Critical patent/GB1405768A/en
Expired 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
    • C30B21/00—Unidirectional solidification of eutectic materials
    • C30B21/02—Unidirectional solidification of eutectic materials by normal casting or gradient freezing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22C—FOUNDRY MOULDING
    • B22C3/00—Selection of compositions for coating the surfaces of moulds, cores, or patterns
    • 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
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C4/00—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge
    • C23C4/04—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge characterised by the coating material
    • C23C4/10—Oxides, borides, carbides, nitrides or silicides; Mixtures thereof
    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C4/00—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge
    • C23C4/04—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge characterised by the coating material
    • C23C4/10—Oxides, borides, carbides, nitrides or silicides; Mixtures thereof
    • C23C4/11—Oxides
    • 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

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Plasma & Fusion (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Coating By Spraying Or Casting (AREA)
  • Mold Materials And Core Materials (AREA)

Abstract

1405768 Casting processes; mould and core coatings UNITED AIRCRAFT CORP 19 Dec 1972 [9 March 1972] 58456/72 Heading B3F When casting an alloy which has an ingredient which reacts with the material of the mould or core used, e.g. when producing columnar crystallized or single crystal alloy castings by unidirectional solidification processes, the mould or core is coated with an oxide which does not react with the ingredient. The coating e.g. alumina, zirconia, yttria or hafnia, may be applied by plasma or flame spraying at room temperature or at 316‹ C. As shown in Fig. 2, a shell mould 2 for a hollow turbine blade is made in two parts 2, 4 by incorporating separators 61 when dip-coating the pattern. The split two-part mould 2, 4 enables all the mould cavity to be easily coated. The following coatings may be used for casting the alloys given below Hf 2 O 3 and Yt 2 O 3 can also be employed for reducing C-depletion in C-containing alloys. Zirconia ZrO 3 dan be used when casting Tialloys.
GB5845672A 1972-03-09 1972-12-19 Casting processes employing coated moulds Expired GB1405768A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US00233168A US3802482A (en) 1972-03-09 1972-03-09 Process for making directionally solidified castings

Publications (1)

Publication Number Publication Date
GB1405768A true GB1405768A (en) 1975-09-10

Family

ID=22876166

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5845672A Expired GB1405768A (en) 1972-03-09 1972-12-19 Casting processes employing coated moulds

Country Status (11)

Country Link
US (1) US3802482A (en)
AU (1) AU466583B2 (en)
BE (1) BE796024A (en)
CA (1) CA981416A (en)
CH (1) CH585077A5 (en)
DE (1) DE2303181A1 (en)
FR (1) FR2174858B1 (en)
GB (1) GB1405768A (en)
IL (1) IL41118A (en)
IT (1) IT983513B (en)
SE (1) SE403058B (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2124116A (en) * 1982-07-09 1984-02-15 Rolls Royce A coating on a foundry core or mould
GB2376652A (en) * 2001-05-14 2002-12-24 Howmet Res Corp Yttria impregnated porous alumina core
CN111621731A (en) * 2020-06-11 2020-09-04 南昌硬质合金有限责任公司 Preparation method of graphite boat isolating coating for hard alloy sintering

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3973750A (en) * 1972-10-06 1976-08-10 Office National D'etudes Et De Recherches Aerospatiales (O.N.E.R.A.) Casting mold for directional solidification of an alloy
US3908733A (en) * 1973-10-26 1975-09-30 United Technologies Corp Method and apparatus for control of alloy in columnar grain castings
US3888301A (en) * 1974-06-07 1975-06-10 United Aircraft Corp Multi-part mold clamp
US3927710A (en) * 1974-08-21 1975-12-23 United Technologies Corp Joining of multi-section ceramic molds
FR2301322A1 (en) * 1975-02-20 1976-09-17 Onera (Off Nat Aerospatiale) METALLURGY MOLD AND ITS MANUFACTURING PROCESS
US3972367A (en) * 1975-06-11 1976-08-03 General Electric Company Process for forming a barrier layer on ceramic molds suitable for use for high temperature eutectic superalloy casting
US4031945A (en) * 1976-04-07 1977-06-28 General Electric Company Process for making ceramic molds having a metal oxide barrier for casting and directional solidification of superalloys
US5337800A (en) * 1992-09-09 1994-08-16 Cook Arnold J Reactive coating
US6946165B2 (en) * 2001-04-17 2005-09-20 Fts, Llc Method and apparatus, with redundancies, for treating substrate plastic parts to accept paint without using adhesion promoters
US9314364B2 (en) * 2003-03-04 2016-04-19 Mueller Sports Medicine, Inc. Self adjusting knee brace
US7201212B2 (en) * 2003-08-28 2007-04-10 United Technologies Corporation Investment casting
CN106363131B (en) * 2016-09-21 2018-04-13 上海万泽精密铸造有限公司 The method that Ti alloy casting is modified with ceramic shell surface layer
EP4281595A1 (en) * 2021-01-22 2023-11-29 Oerlikon Metco AG, Wohlen Transplanted thermal barrier coating system

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2857285A (en) * 1954-08-16 1958-10-21 Stephen D Stoddard High temperature refractory coating for graphite molds
US3180632A (en) * 1961-10-02 1965-04-27 North American Aviation Inc Coated crucible and crucible and mold coating method
US3373795A (en) * 1965-08-10 1968-03-19 Trw Inc Gating of unshrouded airfoils to permit directional solidification
US3422880A (en) * 1966-10-24 1969-01-21 Rem Metals Corp Method of making investment shell molds for the high integrity precision casting of reactive and refractory metals
US3472310A (en) * 1967-04-26 1969-10-14 Ford Motor Co Shell mold and process for shell molding
US3515201A (en) * 1967-11-14 1970-06-02 Amsted Ind Inc Method of casting
GB1242925A (en) * 1969-02-19 1971-08-18 Monsanto Chemicals Improved ceramic moulds for metal casting
US3743003A (en) * 1971-06-03 1973-07-03 Rem Metals Corp Making investment shell molds inhibited against reaction with molten reactive and refractory casting metals
US3727666A (en) * 1971-08-16 1973-04-17 Howmet Corp Method of casting using a mold having a refractory coating thereon

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2124116A (en) * 1982-07-09 1984-02-15 Rolls Royce A coating on a foundry core or mould
GB2376652A (en) * 2001-05-14 2002-12-24 Howmet Res Corp Yttria impregnated porous alumina core
GB2376652B (en) * 2001-05-14 2005-11-16 Howmet Res Corp Impregnated alumina-based core and method
CN111621731A (en) * 2020-06-11 2020-09-04 南昌硬质合金有限责任公司 Preparation method of graphite boat isolating coating for hard alloy sintering

Also Published As

Publication number Publication date
CH585077A5 (en) 1977-02-28
BE796024A (en) 1973-06-18
IL41118A0 (en) 1973-02-28
IL41118A (en) 1977-04-29
FR2174858A1 (en) 1973-10-19
CA981416A (en) 1976-01-13
FR2174858B1 (en) 1977-04-29
AU5027372A (en) 1974-06-20
AU466583B2 (en) 1974-06-20
US3802482A (en) 1974-04-09
SE403058B (en) 1978-07-31
DE2303181A1 (en) 1973-09-20
IT983513B (en) 1974-11-11

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PE20 Patent expired after termination of 20 years

Effective date: 19921217