GB897689A - Improvements in methods of sintering compacts of metal substances - Google Patents

Improvements in methods of sintering compacts of metal substances

Info

Publication number
GB897689A
GB897689A GB31967/59A GB3196759A GB897689A GB 897689 A GB897689 A GB 897689A GB 31967/59 A GB31967/59 A GB 31967/59A GB 3196759 A GB3196759 A GB 3196759A GB 897689 A GB897689 A GB 897689A
Authority
GB
United Kingdom
Prior art keywords
compacts
granules
sintered
mixture
furnace
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
GB31967/59A
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.)
Mallinckrodt Chemical Works
Original Assignee
Mallinckrodt Chemical Works
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 Mallinckrodt Chemical Works filed Critical Mallinckrodt Chemical Works
Publication of GB897689A publication Critical patent/GB897689A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
    • G21C—NUCLEAR REACTORS
    • G21C3/00—Reactor fuel elements and their assemblies; Selection of substances for use as reactor fuel elements
    • G21C3/42—Selection of substances for use as reactor fuel
    • G21C3/58—Solid reactor fuel Pellets made of fissile material
    • G21C3/62—Ceramic fuel
    • G21C3/623—Oxide fuels
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
    • B22F3/10—Sintering only
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/51—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on compounds of actinides
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/622—Forming processes; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/64—Burning or sintering processes
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C32/00—Non-ferrous alloys containing at least 5% by weight but less than 50% by weight of oxides, carbides, borides, nitrides, silicides or other metal compounds, e.g. oxynitrides, sulfides, whether added as such or formed in situ
    • 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
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E30/00—Energy generation of nuclear origin
    • Y02E30/30—Nuclear fission reactors

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Ceramic Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Structural Engineering (AREA)
  • Plasma & Fusion (AREA)
  • Inorganic Chemistry (AREA)
  • General Engineering & Computer Science (AREA)
  • High Energy & Nuclear Physics (AREA)
  • Metallurgy (AREA)
  • Inorganic Compounds Of Heavy Metals (AREA)

Abstract

Compacts of powdered metallic oxides and metals are sintered by allowing a mixture of the <PICT:0897689/III/1> compacts 17 and free-flowing granules 15 of a more refractory material to gravitate through a vertical tubular furnace 3 wherein the compacts 17 are gradually heated to a temperature sufficient to sinter the compacts but insufficient to melt the compacts or sinter the refractory granules, and gradually cooling the mixture. The furnace 3 is heated by a resistance heater 5. The mixture gravitates through a protective atmosphere provided by a counter-current stream of gas entering at 13. At the lower end of the furnace is a rubber tube 9 closed by clamps 11, sintered compacts and refractory granules being removed by periodically opening and closing the upper clamp 11 and then opening and closing the lower clamp 11. The compacts may be moulded using a binder (e.g. paraffin wax) which is removed by heating. In examples, uranium dioxide compacts are sintered in fused alumina granules and in fused zirconia granules, in an atmosphere of hydrogen.
GB31967/59A 1958-09-18 1959-09-18 Improvements in methods of sintering compacts of metal substances Expired GB897689A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US761798A US2968551A (en) 1958-09-18 1958-09-18 Method of sintering compacts

Publications (1)

Publication Number Publication Date
GB897689A true GB897689A (en) 1962-05-30

Family

ID=25063294

Family Applications (1)

Application Number Title Priority Date Filing Date
GB31967/59A Expired GB897689A (en) 1958-09-18 1959-09-18 Improvements in methods of sintering compacts of metal substances

Country Status (6)

Country Link
US (1) US2968551A (en)
BE (1) BE582803A (en)
DE (1) DE1189832B (en)
FR (1) FR1235187A (en)
GB (1) GB897689A (en)
NL (1) NL243509A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0216436A1 (en) * 1985-09-26 1987-04-01 "Studiecentrum voor Kernenergie", "S.C.K." Method for manufacturing a sintered product

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3091027A (en) * 1958-11-20 1963-05-28 Pechiney Prod Chimiques Sa Method and composition for assembling together refractory bodies
US3026177A (en) * 1961-04-25 1962-03-20 Gen Electric Process for producing transparent polycrystalline alumina
DE1260709B (en) * 1961-11-29 1968-02-08 Siemens Ag Process for sintering pressed parts from two- or multi-component systems in the presence of a liquid phase
NL273415A (en) * 1962-01-10
US3238048A (en) * 1963-01-23 1966-03-01 Gen Motors Corp Ceramics
US3252809A (en) * 1963-01-23 1966-05-24 Gen Motors Corp Dry grinding of ceramics
US3238049A (en) * 1963-01-23 1966-03-01 Gen Motors Corp Dry grinding of ceramics
US3252810A (en) * 1963-01-23 1966-05-24 Gen Motors Corp Dry grinding of ceramics
US3442994A (en) * 1966-02-07 1969-05-06 Coors Porcelain Co Method for making curved ceramic plates
US3950463A (en) * 1969-10-22 1976-04-13 The Electricity Council Production of β-alumina ceramic tubes
US4056584A (en) * 1974-09-30 1977-11-01 General Atomic Company Method of making a graphite fuel element having carbonaceous fuel bodies
US4064204A (en) * 1974-09-30 1977-12-20 General Atomic Company Manufacture of nuclear fuel compacts
US4217174A (en) * 1974-09-30 1980-08-12 General Atomic Company Manufacture of nuclear fuel compacts
US4445851A (en) * 1981-05-08 1984-05-01 Avx Corporation Apparatus and method for firing ceramic articles or the like
US5346883A (en) * 1987-08-21 1994-09-13 The Furukawa Electric Co., Ltd. Method of manufacturing superconductive products
JPH09127290A (en) * 1995-11-06 1997-05-16 Mitsubishi Nuclear Fuel Co Ltd Sintering method for nuclear fuel pellet
DE102004062900A1 (en) * 2004-12-21 2006-06-29 Dr. Fritsch Sondermaschinen Gmbh Pressure sintering device

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE289864C (en) *
US2568157A (en) * 1951-09-18 Process of making refractory bodies
FR801730A (en) * 1936-02-07 1936-08-14 Ig Farbenindustrie Ag Process for making molded objects
US2515790A (en) * 1949-04-22 1950-07-18 Gen Electric Ceramic dielectric material and method of making
CH310889A (en) * 1953-04-21 1955-11-15 Intercito Holding Method and device for the production of strands from metal powders.

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0216436A1 (en) * 1985-09-26 1987-04-01 "Studiecentrum voor Kernenergie", "S.C.K." Method for manufacturing a sintered product

Also Published As

Publication number Publication date
DE1189832B (en) 1965-03-25
NL243509A (en)
BE582803A (en) 1960-03-18
US2968551A (en) 1961-01-17
FR1235187A (en) 1960-07-01

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