Induced nuclear reactions: processes – systems – and elements – Handling of fission reactor component structure within...
Patent
1993-04-27
1993-12-28
Wasil, Daniel D.
Induced nuclear reactions: processes, systems, and elements
Handling of fission reactor component structure within...
376307, 29890031, G21C 1300
Patent
active
052746836
ABSTRACT:
A method for replacing a nozzle in a pressure vessel. The existing nozzle is cut approximately at the inside surface of the pressure vessel wall. The portion of the existing nozzle that extends beyond the exterior of the pressure vessel wall is removed. A weld pad is deposited on the exterior of the pressure vessel wall around the nozzle bore. The remainder of the existing nozzle is removed. A corrosion resistant thermal spray coating is applied to the nozzle bore. A replacement nozzle is installed in the nozzle bore and seal welded to the weld pad on the exterior of the pressure vessel wall.
REFERENCES:
patent: 5091140 (1992-02-01), Dixon et al.
patent: 5094801 (1992-03-01), Dixon et al.
patent: 5149490 (1992-09-01), Brown et al.
Broda Paul M.
Carter Gary S.
Dixon Larry D.
B&W Nuclear Service Company
Edwards Robert J.
LaHaye D. Neil
Wasil Daniel D.
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