HEAT TREATMENT APPARATUS AND METHOD OF CONTROLLING TEMPERATURE OF COOLANT IN HEAT TREATMENT APPARATUS

To provide a heat treatment apparatus for cooling a heated object, such as quenching, with excellent energy saving performance and reduced operation costs.SOLUTION: A heat treatment apparatus 1 has: a cooling tank 6 in which a coolant C for cooling a heated object 100 is stored; a thermometer 7 for...

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Hauptverfasser:	NAKAO MASARU, FUKUSHIMA SHINJI, YAMAMURA TSUKASA
Format:	Patent
Sprache:	eng ; jpn
Schlagworte:	CHEMISTRY 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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Zusammenfassung:	To provide a heat treatment apparatus for cooling a heated object, such as quenching, with excellent energy saving performance and reduced operation costs.SOLUTION: A heat treatment apparatus 1 has: a cooling tank 6 in which a coolant C for cooling a heated object 100 is stored; a thermometer 7 for measuring a temperature of the coolant C; a temperature adjustment mechanism 25 including a cooling section 27 for cooling the coolant C and a heating section 28 for heating the coolant C; and a control section 8 for controlling the temperature adjustment mechanism 25. The control unit 8 is configured to execute an induction cooling mode. In the induction cooling mode, the control section 8 sets a target temperature Tt of the coolant C to change over time, and drives the temperature adjustment mechanism 25 so that a measured temperature Tm of the coolant C becomes the target temperature Tt.SELECTED DRAWING: Figure 1 【課題】焼入等、加熱された被処理物を冷却する処理を行う熱処理装置において、省エネルギー性に優れ、且つ、運用コストを低減できるようにする。【解決手段】熱処理装置１は、加熱された被処理物１００を冷却する冷却液Ｃが貯められる冷却槽６と、冷却液Ｃの温度を測定する液温計７と、冷却液Ｃを冷却するための冷却部２７、および、冷却液Ｃを加熱するための加熱部２８を含む温度調整機構２５と、温度調整機構２５を制御する制御部８と、を有する。制御部８は、誘導冷却モードを実行可能に構成されている。制御部８は、誘導冷却モードにおいて、冷却液Ｃの目標温度Ｔｔを時間の経過にしたがい変化するように設定し、冷却液Ｃの実測温度Ｔｍが目標温度Ｔｔとなるように温度調整機構２５を駆動する。【選択図】図１