COMBINED DEVICE FOR HEATING BILLET FOR FORGING

COMBINED DEVICE FOR HEATING BILLET FOR FORGING

PROBLEM TO BE SOLVED: To provide a combined heating device having high durability and excellent energy efficiency by improving the combined heating device combining a combustion type indirect heating furnace using a hollow ceramic tube and an induction heating furnace. SOLUTION: The billet for forgi...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: ASAHI SUMIO, UCHINO SHINJI, ASAHI JUNJI, ASABE SHUICHI, ASAHI SHIGEMITSU
Format: Patent
Sprache:eng
Schlagworte:
BLASTING
CHEMISTRY
FORGE FURNACES
FORGING
FURNACES
FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL
GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUSMETALS OR ALLOYS
HAMMERING
HEATING
KILNS
LIGHTING
MAKING METAL MALLEABLE BY DECARBURISATION, TEMPERING OR OTHERTREATMENTS
MECHANICAL ENGINEERING
MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVINGMATERIAL
METALLURGY
METALLURGY OF IRON
MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS
OPEN SINTERING OR LIKE APPARATUS
OVENS
PERFORMING OPERATIONS
PRESSING METAL
PUNCHING METAL
RETORTS
RIVETING
TRANSPORTING
WEAPONS
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Beschreibung
Zusammenfassung:PROBLEM TO BE SOLVED: To provide a combined heating device having high durability and excellent energy efficiency by improving the combined heating device combining a combustion type indirect heating furnace using a hollow ceramic tube and an induction heating furnace. SOLUTION: The billet for forging is preheated to e.g. 800 deg.C in the combustion type indirect heating furnace 1 and sent to the induction heating furnace 3 by a relaying means 2 provided with a metallic conveyor, and in the induction heating furnace 3, the preheated billet for forging is heated to the last forging temp., e.g. 1200 deg.C, by electromagnetic induction action. The combustion type indirect heating furnace 1 uses the hollow ceramic tube, and the induction heating furnace 3 is constituted by parallel connecting transistors.