METHOD AND APPARATUS FOR MANUFACTURING METAL SINGLE CRYSTAL

PROBLEM TO BE SOLVED: To obtain a high purity metal single crystal by inverting a solidified metal body upside down, which has been once melted/solidified in a crucible, and again melting/solidifying the solidified metal body. SOLUTION: In the method and apparatus for manufacturing the high purity m...

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Hauptverfasser:	OSONO HIROHITO, INOUE SATOSHI, KII TAKAO, MAEDA YUJI, ASHINO YOSHIHIRO, FUJII KAZUYUKI
Format:	Patent
Sprache:	eng
Schlagworte:	AFTER-TREATMENT OF SINGLE CRYSTALS OR A HOMOGENEOUSPOLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE APPARATUS THEREFOR CASTING CASTING OF METALS CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES CHEMISTRY CRYSTAL GROWTH FERROUS OR NON-FERROUS ALLOYS METALLURGY PERFORMING OPERATIONS POWDER METALLURGY PRETREATMENT OF RAW MATERIALS PRODUCTION AND REFINING OF METALS PRODUCTION OF A HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITHDEFINED STRUCTURE REFINING BY ZONE-MELTING OF MATERIAL SINGLE CRYSTALS OR HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITHDEFINED STRUCTURE SINGLE-CRYSTAL-GROWTH TRANSPORTING TREATMENT OF ALLOYS OR NON-FERROUS METALS UNIDIRECTIONAL SOLIDIFICATION OF EUTECTIC MATERIAL ORUNIDIRECTIONAL DEMIXING OF EUTECTOID MATERIAL
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Zusammenfassung:	PROBLEM TO BE SOLVED: To obtain a high purity metal single crystal by inverting a solidified metal body upside down, which has been once melted/solidified in a crucible, and again melting/solidifying the solidified metal body. SOLUTION: In the method and apparatus for manufacturing the high purity metal single crystal (9), the high purity metal single crystal (9) is formed by inverting the solidified metal body (53a) upside down, which has been once melted/solidified in the inner hole (1a) of the crucible (1), and again melting/solidifying the solidified metal body (53a) in the crucible (1). COPYRIGHT: (C)2004,JPO&NCIPI