Electron-beam furnace with magnetic stabilization

Details Electron-beam furnace with magnetic stabilization Electron-beam furnace with magnetic stabilization

1985-05-22

1986-10-07

Envall, Jr., Roy N.

Industrial electric heating furnaces

Electron beam furnace device

Vaporizing furnace

H01J 37305

Patent

active

046163638

ABSTRACT:
An electron-beam furnace for melting and refining metals in a trough-like hearth by scanning high-intensity, narrow electron beams across the hearth is provided with a wire coil located near the hearth for producing a relatively weak magnetic field in the vicinity of the molten metal in the hearth to prevent erratic local beam deflections caused by fluctuations in the plasma that forms in the vicinity of the molten metal. The use of the weak magnetic field allows the electron beams projected by remotely positioned electron guns to be accurately scanned across the hearth by deflection yokes associated with the electron guns.

REFERENCES:
patent: 3080626 (1963-03-01), Hanks
patent: 3087211 (1963-04-01), Howe
patent: 3105275 (1963-10-01), Hanks
patent: 3189953 (1965-06-01), Smith, Jr.
patent: 3592955 (1971-07-01), Hanks

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