GB921484A - Improvements in or relating to apparatus for vacuum melting and casting metals - Google Patents

Improvements in or relating to apparatus for vacuum melting and casting metals

Info

Publication number
GB921484A
GB921484A GB32046/50A GB3204659A GB921484A GB 921484 A GB921484 A GB 921484A GB 32046/50 A GB32046/50 A GB 32046/50A GB 3204659 A GB3204659 A GB 3204659A GB 921484 A GB921484 A GB 921484A
Authority
GB
United Kingdom
Prior art keywords
crucible
graphite
platform
crucible assembly
envelope
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
GB32046/50A
Inventor
John William Smurthwaite
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.)
UK Atomic Energy Authority
Original Assignee
UK Atomic Energy Authority
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 UK Atomic Energy Authority filed Critical UK Atomic Energy Authority
Priority to GB32046/50A priority Critical patent/GB921484A/en
Priority to US54401A priority patent/US3188702A/en
Priority to FR838816A priority patent/FR1267617A/en
Priority to ES0261129A priority patent/ES261129A1/en
Publication of GB921484A publication Critical patent/GB921484A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
    • C22B60/00—Obtaining metals of atomic number 87 or higher, i.e. radioactive metals
    • C22B60/02—Obtaining thorium, uranium, or other actinides
    • C22B60/0204—Obtaining thorium, uranium, or other actinides obtaining uranium
    • C22B60/0213—Obtaining thorium, uranium, or other actinides obtaining uranium by dry processes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D18/00—Pressure casting; Vacuum casting
    • B22D18/06—Vacuum casting, i.e. making use of vacuum to fill the mould
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D7/00—Casting ingots, e.g. from ferrous metals
    • B22D7/005—Casting ingots, e.g. from ferrous metals from non-ferrous metals
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
    • C22B9/00—General processes of refining or remelting of metals; Apparatus for electroslag or arc remelting of metals
    • C22B9/04—Refining by applying a vacuum
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
    • F27B5/00—Muffle furnaces; Retort furnaces; Other furnaces in which the charge is held completely isolated
    • F27B5/04—Muffle furnaces; Retort furnaces; Other furnaces in which the charge is held completely isolated adapted for treating the charge in vacuum or special atmosphere

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Manufacturing & Machinery (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Environmental & Geological Engineering (AREA)
  • Geology (AREA)
  • General Engineering & Computer Science (AREA)
  • Crucibles And Fluidized-Bed Furnaces (AREA)
  • Manufacture And Refinement Of Metals (AREA)

Abstract

921,484. Metal melting furnaces. UNITED KINGDOM ATOMIC ENERGY AUTHORITY. Sept. 2, 1960 [Sept. 21, 1959], No. 32046/59. Class 51 (2). [Also in Groups XI and XXII] Apparatus for vacuum melting and casting uranium comprises high-frequency induction coils 1 defining a heating cavity 2 enclosing a crucible assembly 3 with a bottom pouring outlet 4, supporting structure 5 for the coils and the crucible assembly, a carrier 6 for casting moulds, and a removable vacuum sealing envelope 7 enclosing all the aforementioned items, the crucible assembly being supported on a platform 8 so as to be insertable into or withdrawable from the base 9 of the heating cavity on removal of the envelope. The coils 1 are disposed between an outer sleeve 19 and an inner refractory lining 20, e.g. fireclay, with end closures 21 of asbestos insulating board. The crucible assembly 3 comprises a graphite crucible 23 and tundish 27, the former being sealed by a graphite plug 15 released by a graphite rod 13 actuated by a rod 59 through a lever system 14. On release, the graphite plug 15 floats to the top of the metal which fills the tundish and then the moulds. The platform 8 is held by sliding bolts carried in brackets attached to the structure 5 and having adjustable feet engaging said platform. An extraction hood 61 disposed over the crucible is connected to a vacuum source by duct 63, and has a graphite condensing plate 67 located close to the top of the water-cooled envelope 7 and protected by a spaced baffle plate from the molten mass in the crucible, Fig. 4 (not shown). The platform 8 carrying the crucible assembly and its cold contents is transported and manoeuvred into position by a fork lift truck.
GB32046/50A 1959-09-21 1959-09-21 Improvements in or relating to apparatus for vacuum melting and casting metals Expired GB921484A (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
GB32046/50A GB921484A (en) 1959-09-21 1959-09-21 Improvements in or relating to apparatus for vacuum melting and casting metals
US54401A US3188702A (en) 1959-09-21 1960-09-07 Apparatus for vacuum melting and casting metals
FR838816A FR1267617A (en) 1959-09-21 1960-09-16 Apparatus for melting and vacuum casting metals, in particular radioactive metals
ES0261129A ES261129A1 (en) 1959-09-21 1960-09-20 Apparatus for vacuum melting and casting metals

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB32046/50A GB921484A (en) 1959-09-21 1959-09-21 Improvements in or relating to apparatus for vacuum melting and casting metals

Publications (1)

Publication Number Publication Date
GB921484A true GB921484A (en) 1963-03-20

Family

ID=10332307

Family Applications (1)

Application Number Title Priority Date Filing Date
GB32046/50A Expired GB921484A (en) 1959-09-21 1959-09-21 Improvements in or relating to apparatus for vacuum melting and casting metals

Country Status (3)

Country Link
US (1) US3188702A (en)
ES (1) ES261129A1 (en)
GB (1) GB921484A (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3385346A (en) * 1965-08-26 1968-05-28 Trw Inc Method and apparatus for removal of condensed deposits from mold covers
US8083987B2 (en) * 2008-04-14 2011-12-27 Rolls-Royce Corporation Buoyant plugs for liquid metal control
CN111235398A (en) * 2020-03-13 2020-06-05 河南国玺超纯新材料股份有限公司 Distillation plant is used in high-purity zinc production

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2734240A (en) * 1956-02-14 Vacuum pouring apparatus
CA469762A (en) * 1950-11-28 Reynolds Metals Company Ladles and methods of handling metal
US1812172A (en) * 1925-12-28 1931-06-30 Rohn Wilhelm Production of castings free from pipes and blow-holes
US1897589A (en) * 1930-10-29 1933-02-14 Western Electric Co Melting and casting of metals
US2754347A (en) * 1944-04-28 1956-07-10 Wroughton Donald Apparatus for refining rare refractory metals
US2707720A (en) * 1952-04-09 1955-05-03 Ajax Engineering Corp Electromagnetic valve
US2825945A (en) * 1955-05-03 1958-03-11 Cons Electrodynamics Corp Apparatus for melting metal and successively casting into molds
US2960331A (en) * 1956-11-29 1960-11-15 Stauffer Chemical Co Vacuum melting process

Also Published As

Publication number Publication date
US3188702A (en) 1965-06-15
ES261129A1 (en) 1961-04-01

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