| 摘要 |
PROBLEM TO BE SOLVED: To provide a porous metal body with a large area by securely joining sheet parts composed of metal porous materials with optional material and structure. SOLUTION: In the method of producing a metal porous body 10 with which a plurality of polyhedral voids whose sides are composed of the skeletons of a metal sintered body are formed in a mutually continuous state, using a plurality of sheet parts 11 each composed of a metal porous material obtained by molding foamable slurry comprising metal powder and a foaming agent into a sheet shape, foaming the molding and thereafter performing sintering. A void ratio by the voids formed between the skeletons is 65 to 99%, the ratio of the opening ratio of the voids in the surface and back face is 15 to 85%, and the average opening size of the voids is 50 to 600 μm, these sheet parts 11 are partially laminated, are compressed in a thickness direction till the vois ratio of the laminated parts reaches 40 to 98% and also the thickness thereof reaches ≤80% before the compression, and are joined to each other. COPYRIGHT: (C)2010,JPO&INPIT
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