Published March 1, 1996 | Version v1
Patent Metadata-only

A repair process for an heterogenous welded joint between a nuclear reactor component tube and a pipe

Creators

Description

The repairing process involves cutting a tubular section of the tube (made of low alloy steel) and the pipe (made of austenitic stainless steel), which includes the welded joint, and preparing an heterogenous tubular section for substitution (a first section, made of ferritic steel, is butt welded to a second section, made of austenitic stainless steel); the tubular section is then narrow-joint welded with the low-alloy steel tube, and finally welded to the austenitic stainless steel pipe. Application to repairing a welded joint between a pressurizer tube and an expansion pipe connected to the primary circuit. (author). 5 refs., 4 figs

Availability note (English)

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

Additional details

Additional titles

Original title (French)
Procede de reparation d'une liaison soudee heterogene entre une tubulure d'un composant d'un reacteur nucleaire et une tuyauterie

Publishing Information

Imprint Pagination
25 p.
IPC:
Int. Cl. B23p6/00; B23k33/00; B23k101/06; B23k103/04.
IPC
Int. Cl. B23p6/00; B23k33/00; B23k101/06; B23k103/04.
Patent number
FR patent document 2723869/A/

INIS

Country of Publication
France
Country of Input or Organization
France
INIS RN
28008614
Subject category
S22: GENERAL STUDIES OF NUCLEAR REACTORS; S36: MATERIALS SCIENCE;
Resource subtype / Literary indicator
Non-conventional Literature
Descriptors DEI
AUSTENITIC STEELS; FERRITIC STEELS; PIPE JOINTS; PRESSURIZERS; REACTOR MAINTENANCE; REPAIR; TUBES; WELDED JOINTS
Descriptors DEC
ALLOYS; CARBON ADDITIONS; IRON ALLOYS; IRON BASE ALLOYS; JOINTS; MAINTENANCE; STEELS; TRANSITION ELEMENT ALLOYS

Optional Information

Secondary number(s)
FR patent application 9410433.