Published February 11, 1994 | Version v1
Patent Metadata-only

Process and device for machining the inner surface of a tubular piece and especially for a PWR pressure vessel adapter

Creators

Description

The inside surface of a tube is removed to a predetermined depth by a moving jet of water containing abrasive particles, directed on to the surface at an angle of 30 to 90 degrees thereto from a nozzle, which makes at least two passes, the second pass with a higher rotation speed, over the area to be removed. The device is mounted movable in translation and in rotation. 4 figs

Availability note (English)

Available from Institut National de la Propriete Industrielle, Paris (France).

Additional details

Additional titles

Original title (French)
Procede et dispositif d'usinage de la surface interne d'une piece tubulaire et notamment d'un adaptateur fixe sur le couvercle de la cuve d'un reacteur nucleaire a eau sous pression

Publishing Information

Imprint Pagination
27 p.
IPC:
Int. Cl. G21c17/017; G21c13/036; B24c3/16; G01n29/26; G01b17/02.
IPC
Int. Cl. G21c17/017; G21c13/036; B24c3/16; G01n29/26; G01b17/02.
Patent number
FR patent document 2694654/A/

INIS

Country of Publication
France
Country of Input or Organization
France
INIS RN
25074136
Subject category
S21: SPECIFIC NUCLEAR REACTORS AND ASSOCIATED PLANTS;
Resource subtype / Literary indicator
Non-conventional Literature
Descriptors DEI
ABRASIVES; FLOW RATE; MACHINING; PRESSURE VESSELS; PWR TYPE REACTORS; REMOTE HANDLING EQUIPMENT; REPAIR
Descriptors DEC
CONTAINERS; ENRICHED URANIUM REACTORS; EQUIPMENT; MATERIALS HANDLING EQUIPMENT; POWER REACTORS; REACTORS; THERMAL REACTORS; WATER COOLED REACTORS; WATER MODERATED REACTORS

Optional Information

Secondary number(s)
FR patent application 9209789.