GB875399A - Electron beam furnace - Google Patents

Electron beam furnace

Info

Publication number
GB875399A
GB875399A GB3918358A GB3918358A GB875399A GB 875399 A GB875399 A GB 875399A GB 3918358 A GB3918358 A GB 3918358A GB 3918358 A GB3918358 A GB 3918358A GB 875399 A GB875399 A GB 875399A
Authority
GB
United Kingdom
Prior art keywords
electron beam
melt
hearth
beam furnace
seed crystal
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
GB3918358A
Inventor
Denys Bromley Gasson
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.)
Associated Electrical Industries Ltd
Original Assignee
Associated Electrical Industries Ltd
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 Associated Electrical Industries Ltd filed Critical Associated Electrical Industries Ltd
Priority to GB3918358A priority Critical patent/GB875399A/en
Publication of GB875399A publication Critical patent/GB875399A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J37/00—Discharge tubes with provision for introducing objects or material to be exposed to the discharge, e.g. for the purpose of examination or processing thereof
    • H01J37/30—Electron-beam or ion-beam tubes for localised treatment of objects
    • H01J37/305—Electron-beam or ion-beam tubes for localised treatment of objects for casting, melting, evaporating or etching

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Plasma & Fusion (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Silicon Compounds (AREA)
  • Crystals, And After-Treatments Of Crystals (AREA)

Abstract

<PICT:0875399/III/1> A mono-crystalline rod of silicon is pulled from a melt heated by an electron beam. As shown, an electron beam furnace comprises a hearth 2, an axially movable seed holder 3, and one or more electron guns 6 (see Group XL(a)). After formation of the melt each electron beam is moved radially outwards a small distance to leave a central unheated region of melt into which the seed crystal can be dipped. The seed crystal holder 3 and the hearth 2 are water-cooled. Specification 872,579 is referred to.
GB3918358A 1958-12-04 1958-12-04 Electron beam furnace Expired GB875399A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB3918358A GB875399A (en) 1958-12-04 1958-12-04 Electron beam furnace

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3918358A GB875399A (en) 1958-12-04 1958-12-04 Electron beam furnace

Publications (1)

Publication Number Publication Date
GB875399A true GB875399A (en) 1961-08-16

Family

ID=10408141

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3918358A Expired GB875399A (en) 1958-12-04 1958-12-04 Electron beam furnace

Country Status (1)

Country Link
GB (1) GB875399A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2327637A1 (en) * 1975-10-07 1977-05-06 Leybold Heraeus Gmbh & Co Kg ELECTRONIC BEAM EVAPORATOR
FR2640172A1 (en) * 1987-04-08 1990-06-15 Inst Elektrosvarki Pat METHOD FOR MANUFACTURING MONOBLOC METAL RIBS BY CONTINUOUS SOLIDIFICATION

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2327637A1 (en) * 1975-10-07 1977-05-06 Leybold Heraeus Gmbh & Co Kg ELECTRONIC BEAM EVAPORATOR
FR2640172A1 (en) * 1987-04-08 1990-06-15 Inst Elektrosvarki Pat METHOD FOR MANUFACTURING MONOBLOC METAL RIBS BY CONTINUOUS SOLIDIFICATION

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