Method for tension expanding tubes

Details Method for tension expanding tubes Method for tension expanding tubes

1988-05-02

1989-08-22

Goldberg, Howard N.

Metal working

Means to assemble or disassemble

Puller or pusher means, contained force multiplying operator

291574, 29523, 29727, B21D 5302

Patent

active

048582964

ABSTRACT:
A method for tension expanding a plate fin heat exchanger to provide a heat exchanger with bells of the same form and dimension and then expanding the tube into contact with the tube sheets and hairpin tubes while the bells are clamped to prevent the hairpin tubes from moving.

REFERENCES:
patent: 4531577 (1985-07-01), Humpolik et al.
patent: 4584751 (1986-04-01), Gray et al.
patent: 4584765 (1986-04-01), Gray
patent: 4720902 (1988-01-01), Gray
patent: 4745678 (1988-05-01), Gray
patent: 4761866 (1988-08-01), Murphy

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