| 摘要 |
An apparatus for manufacturing a pressed powder body has a die assembly comprising an upper die (5;202) and a lower die (10;201), for pressing an unpressed powder body of a material powder filled on a pressing surface of the lower die, into a pressed powder body (h;W) between the upper die and the lower die, at least one of the upper die and the lower die being vertically movable to press the unpressed body, and a powder increasing mechanism (5a,10a;203a) for increasing an amount of the material powder locally in the unpressed powder body. In one preferred embodiment, the powder increasing mechanism comprises at least one of the upper die and the lower die, the at least one of the upper die and the lower die comprising a first die member (5a;10a) for pressing a first portion of the unpressed powder body at a first time and a second die member (5b,10b) for pressing a second portion of the unpressed powder body at a second time which is different from the first time. <IMAGE> <IMAGE> |
