Power source device for high-frequency induction heating

Details Power source device for high-frequency induction heating Power source device for high-frequency induction heating

1988-06-07

1989-12-12

Leung, Philip H.

Electric heating

Metal heating

Of cylinders

219 1075, 323210, 323255, 363173, H05B 606

Patent

active

048869520

ABSTRACT:
A power source device for high-frequency induction heating is disclosed. In this power source device, a plurality of high-frequency electric powers of different frequencies are supplied to the heating coil of a high-frequency induction heating appartus successively and repeatedly in time-division fashion at a very short period, to create a heating situation similar to multiple-frequency simultaneous heating, whereby the uniform quenching of an object to-be-treated having a complicated shape can be realized.

REFERENCES:
patent: 2366678 (1945-01-01), St. Palley
patent: 2366981 (1945-01-01), Paddle et al.
patent: 3053920 (1962-09-01), Seitz
patent: 3391329 (1968-07-01), Meyer
patent: 3419792 (1968-12-01), Kasper et al.
patent: 4114010 (1978-09-01), Lewis
patent: 4549056 (1985-10-01), Okatsuka et al.
patent: 4755648 (1988-07-01), Sawa

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