PLASTIC FOAM CONTAINER FOR THE DENSIFICATION OF POWDER MATERIAL

摘要

ABSTRACTA method and container for densifying a powder(14) of metal or non-metal. The powder is disposed ina sealed container (12) which is encapsulated in apressure transmitting medium (16) contained within apot die (26) of a press. A ram (24) enters the pot die(26) and applies a force to the pressure transmittingmedium (16) and the container (12). The pressuretransmitting medium (16) transmits pressure omni-directionally about the container (12). The container(12) has an impermeable, cellular structure (12) thatcollapses and permanently deforms as the powder (14)compacts. The container (12) does not substantiallyexpand to its initial shape after being removed fromthe pressure transmitting medium (16) and thereforesaves the compacted powder (141) from resilient forcesof the container (12) tending to rebound the container(12) to its initial shape.35,999-F