Induced nuclear reactions: processes – systems – and elements – Reactor protection or damage prevention – Shield or barrier between radiation or heat source and...
Patent
1988-10-17
1990-01-09
Wasil, Daniel
Induced nuclear reactions: processes, systems, and elements
Reactor protection or damage prevention
Shield or barrier between radiation or heat source and...
29906, G21C 1308, G21C 2100
Patent
active
048927023
ABSTRACT:
A vessel comprising a shell of large thickness, for example between 200 and 300 mm, consists of unit components symmetrical in revolution (2a, 2b, 6, 7, 8, 9, 10, 3a, 3b) and connected together by end-to-end welding. The components are made of a steel containing 2 to 2.50% of chromium, 0.9 to 1.1% of molybdenum and less than 0.15% of carbon. The welding for connecting these unit components is performed by means of an electron beam in a single pass over the entire thickness of the components, without filler metal. the invention applies particularly to the manufacture of a vessel for a pressurized-water nuclear reactor.
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patent: 4160150 (1979-07-01), Konig
patent: 4576785 (1986-03-01), Clements et al.
"Development of PWR Pressure Vessel Steels", Druce et al., Nucl. Energy, vol. 19, 10/80, pp. 347-360.
Technica, vol. 26, 1985, pp. 105-109, Behnisch.
Nuclear Engineering, vol. 12, No. 133, 6/67, pp. 444-448, "Reactor Pressure Vessels Design-Fabrication-Testing", Porse.
Framatome
Wasil Daniel
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