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    • 7. 发明授权
    • Method of forming shaped body from fine particles with carrier fluid
under pressure gradient
    • 在压力梯度下用载体流体从细颗粒形成成形体的方法
    • US5215697A
    • 1993-06-01
    • US849207
    • 1992-03-11
    • Kazuyuki TokiMikio Murachi
    • Kazuyuki TokiMikio Murachi
    • B22F3/00B28B13/02
    • B28B13/021B22F3/004
    • A shaped body is formed from fine particles such as powder, whiskers or short fibers of ceramics or metal, by preparing a mold having a mold chamber, an inlet port open to the mold chamber at its first portion and adapted to introduce a mixture of the fine particles and a carrier fluid into the mold chamber, and an outlet port open to the mold chamber at its second portion substantially opposite to the first portion and adapted to exhaust substantially only the carrier fluid in a gaseous state out of the mold chamber; preparing the mixture of the fine particles and the carrier fluid; and supplying the mixture under a pressure elevated substantially above atmospheric pressure into the mold chamber through the inlet port while exhausting the carrier fluid out of the mold chamber through the outlet port.
    • 成形体由陶瓷或金属的粉末,晶须或短纤维等微细颗粒形成,通过制备具有模具室的模具,在其第一部分向模具室开口的入口端口,并适于引入 细颗粒和载体流体进入模具室,以及出口端口,其在其第二部分处与模具室相通,基本上与第一部分相对,并且适于仅将气态的载体流体从模腔中排出; 制备细颗粒和载体流体的混合物; 并且在通过所述入口端口将所述混合物在基本上高于大气压力的压力下供给到所述模具室中,同时通过所述出口将所述载体流体排出所述模具室。