Method and apparatus for annealing nuclear reactor pressure vess

Details Method and apparatus for annealing nuclear reactor pressure vess Method and apparatus for annealing nuclear reactor pressure vess

1992-02-05

1993-11-23

Kastler, Scott

Metal treatment

Process of modifying or maintaining internal physical...

Heating or cooling of solid metal

266127, C21D 162

Patent

active

052640566

ABSTRACT:
A nuclear reactor annealing apparatus and method for annealing a vessel of the reactor by utilizing a non-aqueous fluid, a means for replacing water in the vessel with the non-aqueous fluid, a means for heating the non-aqueous fluid to a predetermined temperature and for a predetermined length of time. The non-aqueous fluid creates less pressure than water at the same temperature and is in communication with said vessel so that heating the non-aqueous fluid in turn heats the vessel thereby annealing the vessel. A can device is used to anneal only a portion of the vessel walls.

REFERENCES:
patent: 4077814 (1978-05-01), Kreidler et al.
patent: 4602767 (1986-07-01), Spiegelman et al.
patent: 5025129 (1991-06-01), Miller et al.

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