GB1440492A - Casting mould for directional solidification of an alloy - Google Patents

Casting mould for directional solidification of an alloy

Info

Publication number
GB1440492A
GB1440492A GB4664673A GB4664673A GB1440492A GB 1440492 A GB1440492 A GB 1440492A GB 4664673 A GB4664673 A GB 4664673A GB 4664673 A GB4664673 A GB 4664673A GB 1440492 A GB1440492 A GB 1440492A
Authority
GB
United Kingdom
Prior art keywords
mould
layer
parts
cavity
oct
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
GB4664673A
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.)
Office National dEtudes et de Recherches Aerospatiales ONERA
Original Assignee
Office National dEtudes et de Recherches Aerospatiales ONERA
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 Office National dEtudes et de Recherches Aerospatiales ONERA filed Critical Office National dEtudes et de Recherches Aerospatiales ONERA
Publication of GB1440492A publication Critical patent/GB1440492A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22C—FOUNDRY MOULDING
    • B22C23/00—Tools; Devices not mentioned before for moulding
    • B22C23/02—Devices for coating moulds or cores
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Molds, Cores, And Manufacturing Methods Thereof (AREA)
  • Coating By Spraying Or Casting (AREA)
  • Ceramic Products (AREA)
  • Mold Materials And Core Materials (AREA)
  • Manufacture Of Alloys Or Alloy Compounds (AREA)

Abstract

1440492 Lining moulds OFFICE NATIONAL D'ETUDES ET DE RECHERCHES AEROSPATIALES 5 Oct 1973 [6 Oct 1972] 46646/73 Heading B3F A mould for casting directionally solidified articles comprises a body of heat conducting refractory material, e.g. W, Mo, Ta or graphite, having on its surface a layer of alumina, the said layer having a purity of at least 99À5% and having been deposited by blowpipe projection, e.g. by using an oxyacetylene or plasma blowpipe. The mould may consist of two parts (21) and (22) pressed against one another by a jacket (40) surrounding the parts. The abutting surfaces (33) and (34), (35) and (36) of the parts as well as the surfaces defining the mould cavity are provided with a layer of alumina. In use, the metal may be either melted in the mould cavity or introduced into the cavity in a liquid state and is solidified at a rate between 0À6 and 5 cm./hr. while maintaining a temperature gradient at the solidification front of between 100‹ and 200‹ C./cm.
GB4664673A 1972-10-06 1973-10-05 Casting mould for directional solidification of an alloy Expired GB1440492A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7235545A FR2201937B1 (en) 1972-10-06 1972-10-06

Publications (1)

Publication Number Publication Date
GB1440492A true GB1440492A (en) 1976-06-23

Family

ID=9105309

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4664673A Expired GB1440492A (en) 1972-10-06 1973-10-05 Casting mould for directional solidification of an alloy

Country Status (7)

Country Link
JP (1) JPS52816B2 (en)
CA (1) CA1006673A (en)
CH (1) CH583596A5 (en)
FR (1) FR2201937B1 (en)
GB (1) GB1440492A (en)
IT (1) IT995603B (en)
SE (1) SE403724B (en)

Cited By (2)

* 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
US5706881A (en) * 1994-05-12 1998-01-13 Howmet Research Corporation Heat treatment of superalloy casting with partial mold removal

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0443408Y2 (en) * 1986-11-21 1992-10-14
DE4127792C1 (en) * 1991-08-22 1992-08-06 W.C. Heraeus Gmbh, 6450 Hanau, De

Family Cites Families (3)

* 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
US2840480A (en) * 1954-08-16 1958-06-24 Stephen D Stoddard Refractory coating for graphite molds
GB1198363A (en) * 1968-01-16 1970-07-15 Foseco Int Coating Processes

Cited By (2)

* 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
US5706881A (en) * 1994-05-12 1998-01-13 Howmet Research Corporation Heat treatment of superalloy casting with partial mold removal

Also Published As

Publication number Publication date
IT995603B (en) 1975-11-20
DE2349898A1 (en) 1974-04-11
SE403724B (en) 1978-09-04
CH583596A5 (en) 1977-01-14
FR2201937B1 (en) 1975-01-03
FR2201937A1 (en) 1974-05-03
JPS52816B2 (en) 1977-01-11
JPS4994521A (en) 1974-09-07
CA1006673A (en) 1977-03-15
DE2349898B2 (en) 1976-07-29

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee