Heating coil

A heating apparatus (2) includes a high frequency power supply (3), a left conductive plate (4), a right conductive plate (5), a left heating coil (11), and a right heating coil (12). The left heating coil (11) includes a left conductor portion (21). The left conductor portion (21) faces a gear toot...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	Mase, Hiroaki, Fukuchi, Ryosuke, Hanaki, Akihiro, Matsumoto, Yasuaki, Watanabe, Hiroko, Nakai, Yasufumi, Tanaka, Junko, Orihara, Masayuki
Format:	Patent
Sprache:	eng
Schlagworte:	CHEMISTRY ELECTRIC HEATING ELECTRIC LIGHTING NOT OTHERWISE PROVIDED FOR ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR ELECTRICITY GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUSMETALS OR ALLOYS MAKING METAL MALLEABLE BY DECARBURISATION, TEMPERING OR OTHERTREATMENTS METALLURGY METALLURGY OF IRON MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS
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Beschreibung
Zusammenfassung:	A heating apparatus (2) includes a high frequency power supply (3), a left conductive plate (4), a right conductive plate (5), a left heating coil (11), and a right heating coil (12). The left heating coil (11) includes a left conductor portion (21). The left conductor portion (21) faces a gear tooth (7a) of a helical gear (7) and extends in a direction orthogonal to the direction in which the gear tooth (7a) extends. The left heating coil (11) includes a focusing magnetic body (31) which focuses magnetic flux in the left conductor portion (21) and concentrates the magnetic flux on a surface of the gear tooth (7a). The left heating coil (11) includes an upper inducing magnetic body (32) which induces a part of the magnetic flux flowing in a tooth root of the gear tooth (7a) into a tooth tip of the gear tooth (7a).