GB908581A - Improvements in and relating to electron beam furnaces - Google Patents

Improvements in and relating to electron beam furnaces

Info

Publication number
GB908581A
GB908581A GB4134859A GB4134859A GB908581A GB 908581 A GB908581 A GB 908581A GB 4134859 A GB4134859 A GB 4134859A GB 4134859 A GB4134859 A GB 4134859A GB 908581 A GB908581 A GB 908581A
Authority
GB
United Kingdom
Prior art keywords
pressure drop
working chamber
electron
cathode
electron beam
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
GB4134859A
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.)
Vakutronik VEB
Original Assignee
Vakutronik VEB
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 Vakutronik VEB filed Critical Vakutronik VEB
Publication of GB908581A publication Critical patent/GB908581A/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
    • 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
    • C22B9/16—Remelting metals
    • C22B9/22—Remelting metals with heating by wave energy or particle radiation
    • C22B9/228—Remelting metals with heating by wave energy or particle radiation by particle radiation, e.g. electron beams
    • 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)
  • Chemical & Material Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Plasma & Fusion (AREA)
  • Mechanical Engineering (AREA)
  • Toxicology (AREA)
  • Manufacturing & Machinery (AREA)
  • Health & Medical Sciences (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Analytical Chemistry (AREA)
  • General Engineering & Computer Science (AREA)
  • Electron Sources, Ion Sources (AREA)

Abstract

908,581. Electron beam apparatus. VAKUTRONIK VEB Dec. 4, 1959 [July 4, 1959], No. 41348/59. Class 39 (1). A high-vacuum electron beam furnace for the melting, casting, welding and alloying of metals consists of an electron gun adapted to operate with an accelerating voltage greater than 10 kv., e.g. 10 to 25 kv., and including a solid cathode adapted for operation by pulses of heating current, the emitting surface of the cathode having a cross-sectional area of at least one square centimetre, the cathode 17 being protected from the working chamber 1 by a pressure drop system, reference numeral 9 representing the unions to the vacuum pumps. The system includes magnetic lenses 5 and 6, which successively focus the beam at 15 and 16, and a series of apertured diaphragms 7 which are placed in the path of the beam to increase the gas flow resistance. A valve 11 is provided for isolating the electron source and pressure drop system from the working chamber. An observation window for observing the pattern of the beam is indicated at 10. The magnetic lens 6 has a variable refractive index for controlling the beam and magnetic deflectors may also be provided for static or periodic deflection of the beam. A number of electron source and pressure drop systems may produce intersecting or separate beams in the working chamber.
GB4134859A 1959-07-04 1959-12-04 Improvements in and relating to electron beam furnaces Expired GB908581A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEV0016842 1959-07-04

Publications (1)

Publication Number Publication Date
GB908581A true GB908581A (en) 1962-10-17

Family

ID=7575933

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4134859A Expired GB908581A (en) 1959-07-04 1959-12-04 Improvements in and relating to electron beam furnaces

Country Status (2)

Country Link
CH (1) CH375845A (en)
GB (1) GB908581A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5434421A (en) * 1990-01-31 1995-07-18 Gesellschaft Fuer Unweltschutzberatung Und -Technik Gbr Process and device for treating particulate material with electron beams
US6745512B1 (en) 1990-01-31 2004-06-08 UBT Ingenieurbüro GmbH Quedlinburg Process and device for treating seeds

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5434421A (en) * 1990-01-31 1995-07-18 Gesellschaft Fuer Unweltschutzberatung Und -Technik Gbr Process and device for treating particulate material with electron beams
US6745512B1 (en) 1990-01-31 2004-06-08 UBT Ingenieurbüro GmbH Quedlinburg Process and device for treating seeds

Also Published As

Publication number Publication date
CH375845A (en) 1964-03-15

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