METALLIC SINTERED COMPACT EXCELLENT IN MIRROR-FINISH CHARACTERISTIC AND ITS PRODUCTION

PURPOSE:To produce a metallic sintered compact excellent in mirror-finish characteristics by filling recessed open holes in the surface of a metallic sintered compact with a metal of the same kind and closing the open holes. CONSTITUTION:Recessed open holes in the surface of a metallic sintered comp...

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Bibliographische Detailangaben
Hauptverfasser:	MAKIISHI YUKIO, NAKATSUKA SATORU
Format:	Patent
Sprache:	eng
Schlagworte:	CASTING GRINDING HOROLOGY MAKING METALLIC POWDER MANUFACTURE OF ARTICLES FROM METALLIC POWDER MECHANICAL PARTS OF CLOCKS OR WATCHES IN GENERAL MECHANICALLY-DRIVEN CLOCKS OR WATCHES PERFORMING OPERATIONS PHYSICS POLISHING POWDER METALLURGY TIME PIECES USING THE POSITION OF THE SUN, MOON OR STARS TOOLS FOR GRINDING, BUFFING, OR SHARPENING TRANSPORTING WORKING METALLIC POWDER
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Beschreibung
Zusammenfassung:	PURPOSE:To produce a metallic sintered compact excellent in mirror-finish characteristics by filling recessed open holes in the surface of a metallic sintered compact with a metal of the same kind and closing the open holes. CONSTITUTION:Recessed open holes in the surface of a metallic sintered compact, prepared by a powder metallurgy method and having