Industrial electric heating furnaces – Plasma furnace device
Patent
1984-01-09
1986-04-15
Envall, Jr., Roy N.
Industrial electric heating furnaces
Plasma furnace device
H05B 700
Patent
active
045832293
ABSTRACT:
A method and apparatus for heating and melting electrically conductive material are disclosed. The method includes the steps of heating a jet of gas or gaseous mixture, directing a heated jet of gas or gaseous mixture to the material, and drawing a diffuse current through said gas jet to said material by seeding it with an additive having a low ionization potential so as to increase the rate at which the material is heated. The apparatus includes means for heating gas(es), means for directing a jet of said gas(es) to the material, means for introducing an additive having a low ionization potential into the gas(es) for purposes of ionizing said gas(es), and means for drawing a diffuse current through the jet of ionized gas to the material.
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"Technological Uses of Low Temperature Plasmas", Physics in Technology, Sep. 1975, vol. 6, No. 5, pp. 190-196, J. Lawton.
Aluminum Company of America
Envall Jr. Roy N.
Smith Brian D.
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