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VESSEL HEAD PENETRATION NOZZLE [1 record]

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Record 1 2010-09-08

English

Subject field(s)
  • Nuclear Power Stations
DEF

The head attachment of a pressurized water reactor vessel used for guiding the control rod drive shafts.

Key term(s)
  • adaptor

French

Domaine(s)
  • Centrales nucléaires
CONT

[…] fissuration des adaptateurs des couvercles des cuves de REP [réacteurs à eau sous pression] français; ces adaptateurs, qui permettent en particulier le passage des tiges de commande des barres de contrôle, étaient réalisés en Inconel 600, matériau dont la sensibilité à la corrosion sous tension était bien connue, ne serait-ce qu’à cause des corrosions déjà constatées sur les tubes des générateurs de vapeur réalisés dans le même matériau.

Spanish

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