METHOD AND DEVICE FOR PRECISELY CASTING METAL

PURPOSE:To make the running of molten metal favorable and obtain a precision casting product having a high accuracy by fitting a refractory-made crucible in the inner part of an induction heating type cold crucible, melting the metal and suction-casting the molten metal into a flask having an air pe...

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Bibliographische Detailangaben
Hauptverfasser:	DEMUKAI NOBORU, ICHIYANAGI SHINGO
Format:	Patent
Sprache:	eng
Schlagworte:	BLASTING CASTING CASTING OF METALS CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS,IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KINDOF FURNACE FURNACES FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL HEATING KILNS LIGHTING MECHANICAL ENGINEERING OPEN SINTERING OR LIKE APPARATUS OVENS PERFORMING OPERATIONS POWDER METALLURGY RETORTS TRANSPORTING WEAPONS
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Beschreibung
Zusammenfassung:	PURPOSE:To make the running of molten metal favorable and obtain a precision casting product having a high accuracy by fitting a refractory-made crucible in the inner part of an induction heating type cold crucible, melting the metal and suction-casting the molten metal into a flask having an air permeability. CONSTITUTION:By energizing a coil 312 for induction heating, raw metal material is melted in the refractory-made crucible 32 to obtain the molten metal 35. Successively, a hollow tube 44 integrally arranged with a flask 43 having a high air permeability is stopped to shift at the time of coming to just above the crucible 32. The lower end side of the hollow tube 44 is dipped into the molten metal 35 and the gas is sucked from a gas sucking tube 48 for reducing the pressure to suck the molten metal 35 into the cavity 43a in the mold 43. After solidifying the sucked molten metal 35, a casting chamber 42 is lifted together with the flask 43 to execute the take-out of the flask 43.