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SE301766B - - Google Patents

Info

Publication number
SE301766B
SE301766B SE9461/65A SE946165A SE301766B SE 301766 B SE301766 B SE 301766B SE 9461/65 A SE9461/65 A SE 9461/65A SE 946165 A SE946165 A SE 946165A SE 301766 B SE301766 B SE 301766B
Authority
SE
Sweden
Prior art keywords
graphite
extrusion
uranium
die
ram
Prior art date
Application number
SE9461/65A
Inventor
A Accary
P Magnier
M Marchal
Original Assignee
Commissariat Energie Atomique
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 Commissariat Energie Atomique filed Critical Commissariat Energie Atomique
Publication of SE301766B publication Critical patent/SE301766B/xx

Links

Classifications

    • 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
    • C04B33/00—Clay-wares
    • C04B33/28—Slip casting
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J2/00—Processes or devices for granulating materials, e.g. fertilisers in general; Rendering particulate materials free flowing in general, e.g. making them hydrophobic
    • B01J2/20—Processes or devices for granulating materials, e.g. fertilisers in general; Rendering particulate materials free flowing in general, e.g. making them hydrophobic by expressing the material, e.g. through sieves and fragmenting the extruded length
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES, PROFILES OR LIKE SEMI-MANUFACTURED PRODUCTS OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C23/00—Extruding metal; Impact extrusion
    • B21C23/002—Extruding materials of special alloys so far as the composition of the alloy requires or permits special extruding methods of sequences
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES, PROFILES OR LIKE SEMI-MANUFACTURED PRODUCTS OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C23/00—Extruding metal; Impact extrusion
    • B21C23/01—Extruding metal; Impact extrusion starting from material of particular form or shape, e.g. mechanically pre-treated
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES, PROFILES OR LIKE SEMI-MANUFACTURED PRODUCTS OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C23/00—Extruding metal; Impact extrusion
    • B21C23/32—Lubrication of metal being extruded or of dies, or the like, e.g. physical state of lubricant, location where lubricant is applied
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES, PROFILES OR LIKE SEMI-MANUFACTURED PRODUCTS OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C25/00—Profiling tools for metal extruding
    • B21C25/02—Dies
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES, PROFILES OR LIKE SEMI-MANUFACTURED PRODUCTS OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C25/00—Profiling tools for metal extruding
    • B21C25/02—Dies
    • B21C25/025—Selection of materials therefor
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B32/00—Carbon; Compounds thereof
    • C01B32/90—Carbides
    • C01B32/914—Carbides of single elements
    • C01B32/928—Carbides 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
    • C04B33/00—Clay-wares
    • C04B33/30—Drying methods
    • 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
    • C04B35/515—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxide ceramics
    • C04B35/56—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxide ceramics based on carbides or oxycarbides
    • 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
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2006/00—Physical properties of inorganic compounds
    • C01P2006/80—Compositional purity
    • 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

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Organic Chemistry (AREA)
  • Materials Engineering (AREA)
  • Structural Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Dispersion Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Manufacturing & Machinery (AREA)
  • Plasma & Fusion (AREA)
  • General Engineering & Computer Science (AREA)
  • High Energy & Nuclear Physics (AREA)
  • Inorganic Chemistry (AREA)
  • Carbon And Carbon Compounds (AREA)
  • Press-Shaping Or Shaping Using Conveyers (AREA)
  • Extrusion Of Metal (AREA)

Abstract

<PICT:1115917/C6-C7/1> In the extrusion of metallic carbides the starting workpiece may be a preliminary molten product or made by compressing a powder mixture of uranium oxide and graphite, preferably into porous pellets. The extrusion temperature ranges from 2200-2400 DEG C., preferably 2250-2350 DEG C., the extrusion pressure 200-800 kg/cm2 and the extrusion ratio from 2.8 to 10. To prevent surface cracking, a layer of uranium dicarbide may be applied to the starting workpiece in suspension in collodium solution or in another organic liquid. In a direct extrusion process, Fig. 1, the graphite die 2 is mounted on graphite supports 3, 4 on the hearth 5 of a vacuum furnace 1. Pressure is applied by a graphite ram 6 acting through a graphite block 7. A heating element 10 surrounds the die which may have a conical orifice portion (12), Fig. 2 (not shown) or a hyperbolic portion (14), Fig. 3 (not shown). In another embodiment, Fig. 4 (not shown), the die (2) is placed in the bore of a graphite container (15) having a liner (16) of low strength graphite; a graphite ram (8) is used. In a further embodiment, Fig. 5 (not shown), the workpiece is extruded backwardly through a die (2) mounted on the end of a graphite ram (8). Reference is made to the extrusion of uranium monocarbide, dicarbides of uranium thorium, plutonium, tungsten or a mixture of thorium and uranium carbides.
SE9461/65A 1964-07-17 1965-07-16 SE301766B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR982141A FR1409455A (en) 1964-07-17 1964-07-17 Improvements in processes for shaping, by extrusion, products of the uranium monocarbon type

Publications (1)

Publication Number Publication Date
SE301766B true SE301766B (en) 1968-06-17

Family

ID=8834830

Family Applications (1)

Application Number Title Priority Date Filing Date
SE9461/65A SE301766B (en) 1964-07-17 1965-07-16

Country Status (9)

Country Link
US (1) US3428717A (en)
BE (1) BE666415A (en)
CH (1) CH444100A (en)
ES (1) ES315284A1 (en)
FR (2) FR1409455A (en)
GB (1) GB1115917A (en)
LU (1) LU49093A1 (en)
NL (1) NL6509150A (en)
SE (1) SE301766B (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3723109A (en) * 1971-07-16 1973-03-27 Int Nickel Co Extrusion of canned metal powders using graphite follower block
BE781180A (en) * 1972-03-24 1972-07-17 Centre Etd Energie Nucleaire PRECISION PASTILLES MANUFACTURING PROCESS
RU2191652C1 (en) * 2001-04-04 2002-10-27 Глухов Дмитрий Евгеньевич Method for producing blanks of small-grain structure
US7625542B2 (en) * 2003-04-25 2009-12-01 Inframat Corporation Method for the production of metal carbides
CN104495845B (en) * 2014-12-12 2016-08-24 西安交通大学 A Preparation Process of Pure Fe3C Bulk

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2899054A (en) * 1959-08-11 Refractory dde for extruding uranium
US1829950A (en) * 1924-09-08 1931-11-03 Gewerkschaft Wallram Abteilung Process for the manufacture of difficultly melting heavy metals
US2164750A (en) * 1937-08-21 1939-07-04 Jr Joseph G Nadler Drawing and extrusion die
US2304723A (en) * 1940-01-18 1942-12-08 Hammarbylampan Ab Process for the manufacture of articles of sintered metallic constituents
US2437625A (en) * 1942-10-30 1948-03-09 Carboloy Company Inc Process and die for extruding tubular plastic products
BE578558A (en) * 1958-05-13

Also Published As

Publication number Publication date
BE666415A (en) 1965-11-03
NL6509150A (en) 1966-01-18
US3428717A (en) 1969-02-18
FR88610E (en) 1967-03-03
LU49093A1 (en) 1965-09-15
CH444100A (en) 1967-09-30
ES315284A1 (en) 1967-01-16
GB1115917A (en) 1968-06-06
FR1409455A (en) 1965-08-27

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