Method for applying an overlay weld for preventing and controlli

Details Method for applying an overlay weld for preventing and controlli Method for applying an overlay weld for preventing and controlli

1983-01-18

1986-11-25

Ramsey, Kenneth J.

Metal fusion bonding

Process

Repairing, restoring, or renewing product for reuse

228222, 228226, B23K 9225, B23K 3106

Patent

active

046244026

ABSTRACT:
Stress corrosion cracking 36 at a welded pipe joint 14 in service in a nuclear reactor can be controlled by the location of a overlay weld 18 over the primary weld 16, which extends axially along the pipe on either side of the primary weld 16. The overlay weld 18 is comprised of a plurality of circumferentially and continuously applied weld beads 35, 37 which extend substantially to a minimum distance necessary to produced a favorable residual stress pattern. This distance has been estimated to be the square root of the product of the radius of the pipe times the thickness of the pipe on either side of the primary weld 16.

REFERENCES:
patent: 2963129 (1960-12-01), Eberle
patent: 4049186 (1977-09-01), Hanneman et al.
patent: 4348041 (1982-09-01), Imai et al.

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