Method and apparatus for uniformly heating articles in a vacuum

Details Method and apparatus for uniformly heating articles in a vacuum Method and apparatus for uniformly heating articles in a vacuum

1983-08-26

1985-11-26

Albritton, C. L.

Electric heating

Metal heating

By arc

219121PY, 219121PX, B23K 900

Patent

active

045556113

ABSTRACT:
To heat articles in the vacuum container as uniformly as possible by bombarding them with electrons from a low voltage arc discharge, the plasma flame is not directed at the articles as hitherto usual, but caused to extend past the articles to be heated, by providing a magnetic field in which the lines of magnetic force favoring the propagation of the plasma extend in a direction skirting the surfaces of the articles. Preferably, a magnetic field is provided which is parallel to the axis of the plasma flame, and the articles to be heated are arranged cylindrically around the flame.

REFERENCES:
patent: 3614510 (1971-10-01), Maskell
patent: 3944412 (1976-03-01), Liu
patent: 4301352 (1981-11-01), Shipai et al.
patent: 4448802 (1984-05-01), Buhl et al.
patent: 4471003 (1984-09-01), Cann

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