Method of welding tube ends onto a tube sheet

Details Method of welding tube ends onto a tube sheet Method of welding tube ends onto a tube sheet

1988-07-13

1991-02-05

Ball, Michael W.

Adhesive bonding and miscellaneous chemical manufacture

Methods

Surface bonding and/or assembly therefor

156293, 156297, 156311, 2103218, 21032189, 264248, B29C 6518

Patent

active

049902067

ABSTRACT:
A method of welding porous tube ends onto a tube sheet is disclosed, wherein tube ends projecting over the tube sheet are fused into a melt. Part of the melt is conducted to the outside in a radial direction, so that it lies on the end face of the tube sheet. Melt and tube sheet are then welded together. The tube end is preferably cooled from the inside by a metal pin is inserted into the tube end.

REFERENCES:
patent: 3459622 (1969-08-01), Fisher
patent: 3583907 (1971-06-01), Borsanyi
patent: 3702658 (1972-11-01), McNamara et al.
patent: 3841938 (1974-10-01), Grosse-Holling et al.
patent: 3966520 (1976-06-01), Fallenbeck et al.
patent: 4790372 (1988-12-01), Gemeinhardt et al.
patent: 4800019 (1989-01-01), Bikson et al
"A Guide to Ultrasonic Plastics Assembly", Branson Sonic Power Company Technical Brochure, 1973, pp. 1-9, 32-37, 42-44.
"Entwicklung vonWarmeaustauschern aus Polyoefin-Kunststoffen", 8/8/73, J. Hapke, H. Datene und W. Grosse-Holling.

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