Porous sintered metal and its filter, and method for preparing the porous sintered metal

一种多孔烧结金属,包括至少部分彼此相连的空隙和在所述的空隙的壁中的孔,多孔烧结金属有700cm#+[2]/cm#+[3]或更大的BET表面积,和当通过汞压入方法测量时孔的平均直径为1μm或更大。该多孔烧结金属是通过以下方法制得的:共混金属粉末、粘合剂和树脂颗粒来制备混合物,树脂被分散在混合物中;模塑混合物,制得生坯;用溶剂选择性地从生坯中脱出树脂颗粒;通过加热使脱出后的生坯脱粘合;和烧结该脱粘合的生坯。 A porous sintered metal comprising voids at least partially communicating with each other, and p...

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Bibliographische Detailangaben
Hauptverfasser: NAKAI MASUMI, DATE KENJI
Format: Patent
Sprache:chi ; eng
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Zusammenfassung:一种多孔烧结金属,包括至少部分彼此相连的空隙和在所述的空隙的壁中的孔,多孔烧结金属有700cm#+[2]/cm#+[3]或更大的BET表面积,和当通过汞压入方法测量时孔的平均直径为1μm或更大。该多孔烧结金属是通过以下方法制得的:共混金属粉末、粘合剂和树脂颗粒来制备混合物,树脂被分散在混合物中;模塑混合物,制得生坯;用溶剂选择性地从生坯中脱出树脂颗粒;通过加热使脱出后的生坯脱粘合;和烧结该脱粘合的生坯。 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 cm 2 /cm 3 or more, and an average diameter of the pores being 1 µm 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.