GB919298A - Improvements relating to electronic beam furnaces - Google Patents

Improvements relating to electronic beam furnaces

Info

Publication number
GB919298A
GB919298A GB28991/60A GB2899160A GB919298A GB 919298 A GB919298 A GB 919298A GB 28991/60 A GB28991/60 A GB 28991/60A GB 2899160 A GB2899160 A GB 2899160A GB 919298 A GB919298 A GB 919298A
Authority
GB
United Kingdom
Prior art keywords
beams
specimen
guns
cooled
electron
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
GB28991/60A
Inventor
Denys Bromley Gasson
Norman Frank Eaton
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
Publication of GB919298A publication Critical patent/GB919298A/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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K15/00—Electron-beam welding or cutting
    • C—CHEMISTRY; METALLURGY
    • C30—CRYSTAL GROWTH
    • C30B—SINGLE-CRYSTAL GROWTH; UNIDIRECTIONAL SOLIDIFICATION OF EUTECTIC MATERIAL OR UNIDIRECTIONAL DEMIXING OF EUTECTOID MATERIAL; REFINING BY ZONE-MELTING OF MATERIAL; PRODUCTION OF A HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; SINGLE CRYSTALS OR HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; AFTER-TREATMENT OF SINGLE CRYSTALS OR A HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; APPARATUS THEREFOR
    • C30B13/00—Single-crystal growth by zone-melting; Refining by zone-melting
    • C30B13/16—Heating of the molten zone
    • C30B13/22—Heating of the molten zone by irradiation or electric discharge
    • C—CHEMISTRY; METALLURGY
    • C30—CRYSTAL GROWTH
    • C30B—SINGLE-CRYSTAL GROWTH; UNIDIRECTIONAL SOLIDIFICATION OF EUTECTIC MATERIAL OR UNIDIRECTIONAL DEMIXING OF EUTECTOID MATERIAL; REFINING BY ZONE-MELTING OF MATERIAL; PRODUCTION OF A HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; SINGLE CRYSTALS OR HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; AFTER-TREATMENT OF SINGLE CRYSTALS OR A HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; APPARATUS THEREFOR
    • C30B13/00—Single-crystal growth by zone-melting; Refining by zone-melting
    • C30B13/26—Stirring of the molten zone
    • 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
    • H01J37/02—Details
    • H01J37/16—Vessels; Containers
    • 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
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S117/00—Single-crystal, oriented-crystal, and epitaxy growth processes; non-coating apparatus therefor
    • Y10S117/905—Electron beam
    • 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
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T117/00—Single-crystal, oriented-crystal, and epitaxy growth processes; non-coating apparatus therefor
    • Y10T117/10—Apparatus
    • Y10T117/1024—Apparatus for crystallization from liquid or supercritical state
    • Y10T117/1076—Apparatus for crystallization from liquid or supercritical state having means for producing a moving solid-liquid-solid zone
    • Y10T117/1088—Apparatus for crystallization from liquid or supercritical state having means for producing a moving solid-liquid-solid zone including heating or cooling details

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Analytical Chemistry (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Plasma & Fusion (AREA)
  • Manufacture And Refinement Of Metals (AREA)
  • Crystals, And After-Treatments Of Crystals (AREA)

Abstract

919,298. Electron beam apparatus. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. Aug. 17, 1961 [Aug. 22, 1960], No. 28991/60. Class 39 (1). In a method of zone melting material by electron beam bombardment the specimen 4, Fig. 1, as shown in rod form and circular or polygonal in cross-section, is surrounded by a plurality of, e.g. three, electron guns 8, 9 all at the same level, and either the specimen is moved upwards or the electron beams are deflected to traverse the melting zone from the bottom to the top of the specimen. Opposite the guns are water-cooled shields 12. The beams are line focused beams or spot focused beams which are oscillated horizontally to provide the equivalent of line focusing. The gun shown has a horizontal filament 8, anode 9, focusing coil 10 and the beam entry duct 7 is cooled by water-cooled tubing 11. In Fig. 3 where the specimen is a plate 16 and the beams are deflected by coils 25, the guns 19, 20 are mounted in a separately evacuated chamber 23. Specification 872,579 is referred to.
GB28991/60A 1960-08-22 1960-08-22 Improvements relating to electronic beam furnaces Expired GB919298A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB28990/60A GB963843A (en) 1960-08-22 1960-08-22 Improvements relating to zone melting by electron beam furnaces

Publications (1)

Publication Number Publication Date
GB919298A true GB919298A (en) 1963-02-20

Family

ID=10284491

Family Applications (2)

Application Number Title Priority Date Filing Date
GB28991/60A Expired GB919298A (en) 1960-08-22 1960-08-22 Improvements relating to electronic beam furnaces
GB28990/60A Expired GB963843A (en) 1960-08-22 1960-08-22 Improvements relating to zone melting by electron beam furnaces

Family Applications After (1)

Application Number Title Priority Date Filing Date
GB28990/60A Expired GB963843A (en) 1960-08-22 1960-08-22 Improvements relating to zone melting by electron beam furnaces

Country Status (2)

Country Link
US (1) US3287107A (en)
GB (2) GB919298A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103882509A (en) * 2012-12-19 2014-06-25 北京有色金属研究总院 Electron beam zone melting furnace and method for carrying out float zone purification on material

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4120743A (en) * 1975-12-31 1978-10-17 Motorola, Inc. Crossed grain growth
US4196041A (en) * 1976-02-09 1980-04-01 Motorola, Inc. Self-seeding conversion of polycrystalline silicon sheets to macrocrystalline by zone melting
JPS52143755A (en) * 1976-05-26 1977-11-30 Hitachi Ltd Laser, zone melting device
ES2531555T3 (en) * 2009-07-15 2015-03-17 Politechnika Swietokrzyska Procedure to increase the heat exchange surface of metallic elements or metal alloys

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1061527B (en) * 1953-02-14 1959-07-16 Siemens Ag Process for zone-wise remelting of rods and other elongated workpieces
DE1030463B (en) * 1954-07-31 1958-05-22 Licentia Gmbh Process for the production of semiconductor crystals with p-n junctions
BE542056A (en) * 1954-10-15
DE1029939B (en) * 1955-06-27 1958-05-14 Licentia Gmbh Process for the production of electrically asymmetrically conductive semiconductor systems
US2809905A (en) * 1955-12-20 1957-10-15 Nat Res Dev Melting and refining metals
US2968723A (en) * 1957-04-11 1961-01-17 Zeiss Carl Means for controlling crystal structure of materials
US3020387A (en) * 1959-06-03 1962-02-06 Alloyd Electronics Corp Electron beam heating devices

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103882509A (en) * 2012-12-19 2014-06-25 北京有色金属研究总院 Electron beam zone melting furnace and method for carrying out float zone purification on material
CN103882509B (en) * 2012-12-19 2016-12-28 北京有色金属研究总院 A kind of area electron beam smelting furnace that material is carried out suspension zone-refine and method

Also Published As

Publication number Publication date
US3287107A (en) 1966-11-22
GB963843A (en) 1964-07-15

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