Method for manufacturing special-section tubes for tubular heat

Details Method for manufacturing special-section tubes for tubular heat Method for manufacturing special-section tubes for tubular heat

1984-05-21

1986-12-30

Paschall, M. H.

Electric heating

Metal heating

By arc

219137R, B23K 1500

Patent

active

046330569

ABSTRACT:
A method for manufacturing special-section tubes having an oval cross section and a cross web for tubular heat exchangers by gradually profiling a metal strip and then joining the rims together substantially in the longitudinal direction of the tube.

REFERENCES:
patent: 2655181 (1953-10-01), Cooper
patent: 3949186 (1976-04-01), Nakayama et al.

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