Method and arrangement for heating workpieces to desired tempera

Details Method and arrangement for heating workpieces to desired tempera Method and arrangement for heating workpieces to desired tempera

1977-10-19

1979-03-06

Edmundson, F. C.

Chemistry: electrical and wave energy

Processes and products

Electrostatic field or electrical discharge

250531, B01K 100

Patent

active

041429575

ABSTRACT:
The method comprises the measurement of the actual temperature of the workpiece in the container, forming a time derivative value proportional to the rate of change of the measured actual temperature value, comparing the time derivative value with a predetermined or desired treatment temperature value to produce a comparison value and continuously readjusting the glow discharge current proportionally to the comparison value so that no abrupt changes in the glow discharge current takes place.

REFERENCES:
patent: 2884511 (1959-04-01), Berghaus et al.
patent: 3260892 (1966-07-01), Berghaus et al.
patent: 3579029 (1971-05-01), Spescha
patent: 3686557 (1972-08-01), Futamura

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