Process of replacing a sleeve mounted within a pipe

Details Process of replacing a sleeve mounted within a pipe Process of replacing a sleeve mounted within a pipe

1985-03-07

1987-07-28

Jordan, M.

Metal fusion bonding

Process

Repairing, restoring, or renewing product for reuse

29400N, 2940208, 2940216, 295271, B23K 3106

Patent

active

046827250

ABSTRACT:
Process of replacing a sleeve mounted within a pipe, and devices for carrying out that process. The process consists in making a pair of cross cuts in the pipe (1'), withdrawing the section thus obtained and the sleeve (5'), machining chamfers on the free ends of the pipe (1'), checking the position and the geometry of the blocks (6'), welding into the gap in the pipe (1') a new section, onto the internal wall of which one of the ends of a new sleeve (5') has previously been welded. The invention can be applied to the circuits of pressurized-water nuclear power stations.

REFERENCES:
patent: 4294662 (1981-10-01), Guignand et al.
patent: 4438600 (1984-03-01), Berbakov
patent: 4440339 (1984-04-01), Tamai et al.
patent: 4510372 (1985-04-01), Kobuck et al.
patent: 4514614 (1985-04-01), Stol
patent: 4547944 (1985-10-01), Hayden

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