H - Electricity – 05 – B
Patent
H - Electricity
05
B
H05B 6/06 (2006.01) C21D 1/42 (2006.01) C21D 9/60 (2006.01) C23C 2/06 (2006.01) C23C 2/28 (2006.01) H05B 6/02 (2006.01) H05B 6/04 (2006.01)
Patent
CA 2255136
An alloying system for a galvanized steel sheet, the alloying system using an induction heating coil, wherein an impedance matching apparatus is provided between the induction heating coil and a high frequency power source. The impedance matching apparatus comprises a matching transformer having a plurality of intermediate contact points for arbitrarily selecting a turn ratio, and a switching device for alternative changeover of the intermediate contact point, whereby even when the load impedance of the steel sheet varies, maximum power source output is obtained, such that an appropriate heating temperature necessary for forming an alloy layer of the steel sheet can be supplied.
Asahara Yuuji
Han Kwang-Hee
Han Kwang-Hum
Hirai Etsurou
Lee Jae-Young
Mitsubishi Heavy Industries Ltd.
Ogilvy Renault Llp/s.e.n.c.r.l.,s.r.l.
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