Matching apparatus for connecting high frequency solid state ele

Details Matching apparatus for connecting high frequency solid state ele Matching apparatus for connecting high frequency solid state ele

1995-12-08

1999-05-11

Leung, Philip H.

Electric heating

Inductive heating

Metal working

219612, 219617, 219661, 219666, 219 612, 219110, H05B6/08

Patent

active

059025069

ABSTRACT:
High frequency electrical heating apparatus in which metal parts are heated as they are advanced,either for annealing or forge welding purposes,and in which the electrical heating current is supplied by solid state D.C. to A.C. inverter through a load matching and frequency control circuit which maintains the desired load current and current frequency with changes in the load impedance caused by the metal parts as they are advanced.

REFERENCES:
patent: 2623176 (1952-12-01), Witsenburg et al.
patent: 3145285 (1964-08-01), Kohler
patent: 4456803 (1984-06-01), Kaneda et al.
patent: 4900887 (1990-02-01), Keller

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