FINISH HEAT TREATMENT METHOD FOR IRON POWDER AND FINISH HEAT TREATMENT DEVICE

PROBLEM TO BE SOLVED: To provide an advantageous finish heat treatment method for iron powder for improving production efficiency in the finish heat treatment stage of iron powder production, and to provide a finish heat treatment device used for the treatment. SOLUTION: In the finish heat treatment...

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Hauptverfasser:	SAKAGUCHI YASUHIKO, UENOSONO SATOSHI
Format:	Patent
Sprache:	eng
Schlagworte:	CASTING CHEMISTRY GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUSMETALS OR ALLOYS MAKING METAL MALLEABLE BY DECARBURISATION, TEMPERING OR OTHERTREATMENTS MAKING METALLIC POWDER MANUFACTURE OF ARTICLES FROM METALLIC POWDER METALLURGY METALLURGY OF IRON MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS PERFORMING OPERATIONS POWDER METALLURGY TRANSPORTING WORKING METALLIC POWDER
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Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To provide an advantageous finish heat treatment method for iron powder for improving production efficiency in the finish heat treatment stage of iron powder production, and to provide a finish heat treatment device used for the treatment. SOLUTION: In the finish heat treatment method for iron powder where raw material iron powder dischargaed from a hopper for iron powder storage is preheated in the stage of the discharge, is thereafter continuously fed into a finish heat treatment furnace, and is subjected one or more treatments selected from deoxidizing, decarburizing and denitriding, a gas for heating is blown from the lower part of the hopper so as to preheat the raw material iron powder. COPYRIGHT: (C)2007,JPO&INPIT