| 摘要 |
PROBLEM TO BE SOLVED: To provide a pressure molding machine for solid powder which is capable of efficiently avoiding the generation of air reservoir inside a solid powder by pressure molding a mixture while facilitating removal of the air mixed into the inside. SOLUTION: The pressure molding machine for solid powder for pressure molding the mixture 11 containing a powder and a binder to obtain the solid powder has a molding recessed portion 13 to which the mixture 11 is fed, and an upper pestle 14 provided on the upper part of the portion 13 to pressurize and compress the mixture 11 which is fed. A pressurizing portion 20 of the pestle 14 is made of a porous material 15, and the material 15 is formed by integrating two or more portions 15a, 15b having different porosities in a lateral direction Y perpendicular to an axial direction X of the pestle 14. Further, in the materials 15a, 15b, lower portions 15a', 15b' which gets into contact with the mixture 11 at the time of being pressurized and compressed have small porosities and upper portions 15a", 15b" have large porosities. COPYRIGHT: (C)2004,JPO
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