GB1309340A - Production of fine grained ingots for the advanced superalloys - Google Patents

Production of fine grained ingots for the advanced superalloys

Info

Publication number
GB1309340A
GB1309340A GB5497971A GB1309340DA GB1309340A GB 1309340 A GB1309340 A GB 1309340A GB 5497971 A GB5497971 A GB 5497971A GB 1309340D A GB1309340D A GB 1309340DA GB 1309340 A GB1309340 A GB 1309340A
Authority
GB
United Kingdom
Prior art keywords
zone
mould
alloy
temperature
hot top
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
GB5497971A
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 GB1309340A publication Critical patent/GB1309340A/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
    • B22D27/02—Use of electric or magnetic effects

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Manufacture Of Alloys Or Alloy Compounds (AREA)
  • Turbine Rotor Nozzle Sealing (AREA)

Abstract

1309340 Casting processes and moulds UNITED AIRCRAFT CORP 25 Nov 1971 [20 Jan 1971] 54797/71 Heading B3F A process for the casting of alloys to obtain ingots with a fine-grain equiaxed structure comprises melting an alloy in a crucible, slowly reducing the alloy melt temperature to induce nucleation and thereby to produce a homogenous liquid-solid slushy mixture (e.g. by stirring), pouring the slushy mixture into a mould having upper and lower zones, the temperature of the upper zone of the mould being controllable independently of the lower mould zone temperature and the lower mould zone being previously preheated to a temperature below the solidus temperature of the alloy, allowing the alloy to solidify in the lower zone while maintaining an excess of slushy alloy in the upper zone to feed the shrinkage in the cast ingot resulting during solidification. The mould employed consists of a copper stool 6 holding a ceramic mould liner 10 defining a narrowed zone 16 which functions as a hot top. A stainless steel shell 8 jackets the liner 10 and extends around the hot top at 14. Two stirring coils 12, 20 are provided. The upper coil 20 surrounding the hot top is provided with a graphite susceptor 18 and functions additionally to heat the hot top.
GB5497971A 1971-01-20 1971-11-25 Production of fine grained ingots for the advanced superalloys Expired GB1309340A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US10790871A 1971-01-20 1971-01-20

Publications (1)

Publication Number Publication Date
GB1309340A true GB1309340A (en) 1973-03-07

Family

ID=22319106

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5497971A Expired GB1309340A (en) 1971-01-20 1971-11-25 Production of fine grained ingots for the advanced superalloys

Country Status (9)

Country Link
US (1) US3669180A (en)
CA (1) CA950637A (en)
CH (1) CH548453A (en)
DE (1) DE2159815C2 (en)
FR (1) FR2122400B1 (en)
GB (1) GB1309340A (en)
IL (1) IL38350A (en)
IT (1) IT946521B (en)
SE (1) SE384332B (en)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1469746A (en) * 1973-06-22 1977-04-06 Selly Oak Diecasting Ltd Manufacture of cast ferrous metal dies
US3902544A (en) * 1974-07-10 1975-09-02 Massachusetts Inst Technology Continuous process for forming an alloy containing non-dendritic primary solids
DE2842605C2 (en) * 1978-09-29 1983-12-08 Georg Dr. 8521 Langensendelbach Müller Process for producing crystals of high crystal quality
US4540038A (en) * 1984-06-05 1985-09-10 Westinghouse Electric Corp. Method for production of combustion turbine blade having a hybrid structure
US4637448A (en) * 1984-08-27 1987-01-20 Westinghouse Electric Corp. Method for production of combustion turbine blade having a single crystal portion
US4832112A (en) * 1985-10-03 1989-05-23 Howmet Corporation Method of forming a fine-grained equiaxed casting
US4709461A (en) * 1986-02-10 1987-12-01 Howmet Turbine Components Corporation Method of forming dense ingots having a fine equiaxed grain structure
US4964453A (en) * 1989-09-07 1990-10-23 The United States As Represented By The Administrator Of The National Aeronautics And Space Administration Directional solidification of superalloys
CA2628504C (en) 2007-04-06 2015-05-26 Ashley Stone Device for casting
CN114273645B (en) * 2021-12-27 2024-03-29 山东康普锡威新材料科技有限公司 Method for preparing ultrafine grain material by high-frequency vibration

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA842690A (en) * 1970-05-26 Petrovich Vladimir Grain refining process
US3508914A (en) * 1965-10-07 1970-04-28 Us Navy Methods of forming and purifying nickel-titanium containing alloys
US3552479A (en) * 1967-11-22 1971-01-05 Martin Metals Co Casting process involving cooling of a shell mold prior to casting metal therein

Also Published As

Publication number Publication date
US3669180A (en) 1972-06-13
DE2159815C2 (en) 1981-11-26
DE2159815A1 (en) 1972-08-03
CA950637A (en) 1974-07-09
IL38350A0 (en) 1972-03-28
CH548453A (en) 1974-04-30
SE384332B (en) 1976-05-03
IT946521B (en) 1973-05-21
IL38350A (en) 1975-12-31
FR2122400A1 (en) 1972-09-01
FR2122400B1 (en) 1975-08-29

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee