Method of repairing a steam generator tube by means of lining

Details Method of repairing a steam generator tube by means of lining Method of repairing a steam generator tube by means of lining

1986-03-27

1988-11-15

Goldberg, Howard N.

Metal working

Method of mechanical manufacture

Repairing

291573C, 2940209, 29523, B23P 600

Patent

active

047838906

ABSTRACT:
Method of repairing a steam generator tube by means of a liner, in which the mechanical deformation (19) of the liner (15), by expansion in its end part opposite the expanded end (16) inside the tube plate (11), is located at a limited height, and the parameters of the mechanical deformation (19) are calculated in accordance with the welding parameters subsequently applied. These parameters are determined in accordance with the parameters of the initial mechanical deformation (19) so as to obtain relief of the stresses more particularly in the critical zones (19a, 19b) of the mechanical deformation.

REFERENCES:
patent: Re30802 (1981-11-01), Rogers, Jr.
patent: 3140537 (1964-07-01), Popoff
patent: 3562887 (1971-02-01), Schroeder et al.
patent: 3912148 (1975-10-01), Johnson
patent: 4028789 (1977-06-01), Loch
patent: 4448343 (1984-05-01), Kochka et al.
patent: 4547944 (1985-10-01), Hayden
patent: 4581801 (1986-04-01), Kobuck et al.

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