公开(公告)号：US3829261A

公开(公告)日：1974-08-13

申请号：US35648673

申请日：1973-05-02

Applicant: ASEA AB

Inventor： LARSSON H ,  BERGMAN C

IPC: B22F3/12 ,  B22F3/15 ,  B30B5/02

CPC classification number: B22F3/1258 ,  B22F3/15

Abstract: In isostatic hot pressing of powder in a collapsible container, the powder is enclosed in a container which is provided with one or more evacuation openings, and a conical support is held in position adjacent the evacuation openings. A funnel-shaped body of sheet metal is secured above the support and the evacuation openings by welding its edge to the wall of the container. The body is evacuated through a suction tube connected to the funnel and the tube is sealed. Thereafter the container is subjected to heat and pressure, and the funnel-shaped member collapses into engagement with the conical support.