Welding of tubes to tube plates

Details Welding of tubes to tube plates Welding of tubes to tube plates

1982-08-09

1984-11-06

Envall, Jr., Roy N.

Electric heating

Metal heating

Of cylinders

219 61, B23K 902

Patent

active

044813996

ABSTRACT:
Welding of tubes to tube plates using a non-consumable electrode to locally melt the wall of a tube and an adjacent area of the tube plate where the tube has been entered into a hole in the tube plate and including an initial weld preparation comprising the machining of one face of the tube plate to produce respective annular grooves concentrically around the holes into which the tubes are subsequently to be entered for welding.

REFERENCES:
patent: 3139506 (1964-06-01), Wolff et al.
patent: 3159734 (1964-12-01), Cooksey et al.
patent: 3350537 (1967-10-01), Lawrence et al.
patent: 3496323 (1970-02-01), Lesnewich et al.
patent: 3769489 (1973-10-01), Charlesworth
Howard B. Cary, Modern Welding Technology, "Shielding Gases Used in Welding", pp. 359-360.

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