INDUCTION FURNACE AND INDUCTION FURNACE STATE ACQUISITION METHOD

To provide an induction furnace which makes it possible to acquire the state of the furnace without requiring the confirmation operation for the furnace by an operator with visual inspection or measurement or the like.SOLUTION: Provided is an induction furnace 100 which comprises a furnace body part 10 formed of a refractory and loaded with a melting raw material M inside, an induction heating coil 20 which is wound so as to surround the outer circumference of the furnace body part 10 to melt the melting raw material by induction heating and a control part 30. The control part 30 executes control of acquiring the state of the furnace based on the load resistance value or voltage of the induction heating coil 20.SELECTED DRAWING: Figure 1 【課題】目視また測定などの作業者による炉の確認作業を行わなくても、炉の状態を取得可能な誘導炉を提供する。【解決手段】この誘導炉１００は、耐火物によって形成され、溶解原料Ｍが内側に投入される炉本体部１０と、炉本体部１０の外周を取り囲むように巻回され、誘導加熱によって溶解原料を溶解させる誘導加熱コイル２０と、制御部３０とを備える。制御部３０は、誘導加熱コイル２０の負荷抵抗値または電圧に基づいて、炉の状態を取得する制御を行う。【選択図】図１