Method for explosively welding a sleeve into a heat exchanger tu

Details Method for explosively welding a sleeve into a heat exchanger tu Method for explosively welding a sleeve into a heat exchanger tu

1990-04-16

1991-06-11

Eley, Timothy V.

Metal working

Method of mechanical manufacture

Heat exchanger or boiler making

2940216, 294212, 228108, 228109, B21D 2608

Patent

active

050221485

ABSTRACT:
A sleeve containing an explosive charge which is explosively welded along a tapered end to the inner surface of a tube for repairing a damaged section of the tube. No mechanical support is needed along the outer surface of the tube despite the explosive expansion and welding of the sleeve. The explosive charge is tapered at the end of the sleeve. A charge assembly for carrying the explosive charge includes a flange for centering the sleeve in the tube and for establishing a stand-off distance between the sleeve and the tube.

REFERENCES:
patent: 3411198 (1968-11-01), Berman et al.
patent: 3590877 (1971-07-01), Leopoid
patent: 3781966 (1974-01-01), Lieberman
patent: 3868131 (1975-02-01), Zondag
patent: 4003513 (1977-01-01), Chadwick
patent: 4021907 (1977-05-01), Zondag
patent: 4567632 (1986-02-01), Peters et al.

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