Method and apparatus for pressurizing hot-isostatic pressure ves

Details Method and apparatus for pressurizing hot-isostatic pressure ves Method and apparatus for pressurizing hot-isostatic pressure ves

1976-07-27

1977-06-28

Hunt, Brooks H.

Specialized metallurgical processes, compositions for use therei

Compositions

Consolidated metal powder compositions

75214, 65 53, 65 54, 137563, 425405H, B22F 300

Patent

active

040323374

ABSTRACT:
A method and apparatus for the rapid, high-capacity pressurization of hot-isostatic pressing vessels, specifically of the type adapted for the hot-isostatic pressing of alloy shapes from powder metallurgy alloy charges. This is achieved by pressurizing with argon gas which is obtained by pumping cryogenic liquid argon at relatively low pressure to a relatively higher pressure and vaporizing said pumped liquid argon to produce said gas, which gas after use in the vessel for compacting is reclaimed and reliquefied for reuse.

REFERENCES:
patent: 3254496 (1966-07-01), Roche et al.
patent: 3303660 (1967-02-01), Berg
patent: 3419935 (1969-01-01), Pfeiler et al.
patent: 3562371 (1971-02-01), Bush
patent: 3624759 (1971-11-01), Carlson
Johansson, R., "Isostatic Compaction" ASEA Journal 43 (1970): 6, pp. 115-118.

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