Porous sintered metal and filter thereof, and method for producing porous sintered metal

A porous sintered metal comprising voids at least partially communicating with each other, and pores provided in walls of the voids, the porous sintered metal having a BET surface area of 700 cm2/cm3 or more, and an average diameter of the pores being 1 mum or more when measured by a mercury press-i...

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Bibliographische Detailangaben
Hauptverfasser:	NAKAI MASUMI, DATE KENJI
Format:	Patent
Sprache:	eng
Schlagworte:	CASTING MAKING METALLIC POWDER MANUFACTURE OF ARTICLES FROM METALLIC POWDER PERFORMING OPERATIONS PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL POWDER METALLURGY SEPARATION TRANSPORTING WORKING METALLIC POWDER
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Beschreibung
Zusammenfassung:	A porous sintered metal comprising voids at least partially communicating with each other, and pores provided in walls of the voids, the porous sintered metal having a BET surface area of 700 cm2/cm3 or more, and an average diameter of the pores being 1 mum or more when measured by a mercury press-in method. The porous sintered metal is produced by blending a metal powder, a binder and resin particles to prepare a mixture in which the resin particles are dispersed; molding the mixture to provide a green body; selectively extracting the resin particles from the green body with a solvent; debinding the extracted green body by heating; and sintering the debound green body.