H - Electricity – 05 – B
Patent
H - Electricity
05
B
H05B 6/14 (2006.01) B21B 1/26 (2006.01) B21B 27/10 (2006.01) B21B 37/32 (2006.01) H05B 6/06 (2006.01)
Patent
CA 2358815
An induction heating device for heating a rolling roller by induction heating so as to equalize the diameter of the rolling roller, comprises: an induction heater; an induction heater moving means for moving the induction heater to a heating portion while a distance from the induction heater to the surface of a portion to be heated is kept constant; an electric power supply means for supplying electric power to the induction heater; and a heat quantity adjusting means for adjusting the quantity of heat of the induction heater according to the quantity of heat required by the heating portion. The heat quantity adjusting means includes a frequency control means for controlling the frequency of electric power supplied to the induction heater, wherein the frequency control means adjusts the frequency of electric power to be high in a predetermined frequency range when the quantity of heat required by the heating portion is large, and adjusts the frequency of electric power to be low when the quantity of heat required by the heating portion is small. Preferably, the frequency is adjusted in a range from 25 to 200 kHz.
Aoi Tatsufumi
Mizuta Keiji
Yamamoto Mikio
Gowling Lafleur Henderson Llp
Mitsubishi Heavy Industries Ltd.
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