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公开(公告)号：EP0407660A1
公开(公告)日：1991-01-16
申请号：EP89123712.5
申请日：1989-12-22
发明人： Katayama, Keiichi Hiroshima Techn.Inst. MITSUBISHI , Kato, Mitsuo Hiroshima Techn.Inst. MITSUBISHI , Hanamoto, Mikio Hiroshima Techn.Inst. MITSUBISHI , Tsurusaki, Kasuya Hiroshima Techn.Inst. MITSUBISHI , Izumi, Kiyoshi Hiroshima Techn.Inst. MITSUBISHI , Hiyama, Mamoru Hiroshima Machin. Works MITSUBISHI
IPC分类号： H05B6/04
CPC分类号： C21D9/60 , Y02P10/253
摘要： In an induction heating apparatus which comprises a high frequency power source for inducing eddy currents into a plated steel sheet, electronical means are provided in order to vary the frequency of the power source. The variation of the frequency is obtained by providing a phase angle signal of the voltage phase at the output of the high frequency inverter, which phase angle signal is used to create a phase delay. The delay or advance of the voltage phase creates a variation of the frequency which is beneficial in conditions where a constant frequency would produce standing wave irregularities of the interface area between the steel sheet and the plated layer which is heated and vibrated by the induced currents and magnetic fields.
摘要翻译： 在包括用于将电涡流引入电镀钢板的高频电源的感应加热装置中，提供电子装置以改变电源的频率。 通过在高频逆变器的输出处提供电压相位的相位角信号来获得频率的变化，该相位角信号用于产生相位延迟。 电压相位的延迟或提前产生频率的变化，这有利于在恒定频率产生由感应电流加热和振动的钢板和镀层之间的界面区域的驻波不规则性的条件下， 磁场。
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公开(公告)号：EP0407660B1
公开(公告)日：1995-02-15
申请号：EP89123712.5
申请日：1989-12-22
发明人： Katayama, Keiichi Hiroshima Techn.Inst. MITSUBISHI , Kato, Mitsuo Hiroshima Techn.Inst. MITSUBISHI , Hanamoto, Mikio Hiroshima Techn.Inst. MITSUBISHI , Tsurusaki, Kasuya Hiroshima Techn.Inst. MITSUBISHI , Izumi, Kiyoshi Hiroshima Techn.Inst. MITSUBISHI , Hiyama, Mamoru Hiroshima Machin. Works MITSUBISHI
IPC分类号： H05B6/04
CPC分类号： C21D9/60 , Y02P10/253
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