公开(公告)号：US3571850A

公开(公告)日：1971-03-23

申请号：US3571850D

申请日：1969-04-15

Applicant: ATOMIC ENERGY COMMISSION

Inventor： POHTO HERBERT A ,  ONGE CARL D ST

IPC: B01J3/06 ,  B22F3/15 ,  B29C3/00 ,  B22F3/14

CPC classification number: B30B11/002 ,  B01J3/065 ,  B22F3/15

Abstract: An improved bell assembly is provided for use in a hotisostatic-pressing apparatus wherein a gas provides the material pressing and heating medium. The thermal insulating and sealing properties of the bell assembly substantially enhance the efficiency of the natural-convection, closed-loop gas heating system by significantly decreasing heat losses and gas escape.