Metal treatment – Process of modifying or maintaining internal physical... – Magnetic materials
Patent
1988-08-08
1989-07-11
McDowell, Robert
Metal treatment
Process of modifying or maintaining internal physical...
Magnetic materials
72 54, C21D 800
Patent
active
048469009
ABSTRACT:
The invention relates to a process for producing a compressed gas container made of austenitic steels by cryodeformation in which the container is cooled by a refrigerated cooling medium to below the prevailing martensite transformation temperature and is expanded to the desired size by the introduction of a pressure medium into the container. Trichlorofluoromethane is employed as the pressure medium.
REFERENCES:
patent: 3255051 (1966-07-01), Gilbert
patent: 3266946 (1966-08-01), Merlin
patent: 4772337 (1988-09-01), Kesten
Diehl Werner K.
Kesten Martin
McDowell Robert
Messer Griesheim GmbH
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