Method for the cold working of heat exchanger tubing for the att

Details Method for the cold working of heat exchanger tubing for the att Method for the cold working of heat exchanger tubing for the att

1976-07-27

1978-08-01

Lanham, C.W.

Metal working

Means to assemble or disassemble

Puller or pusher means, contained force multiplying operator

165182, B23P 1526

Patent

active

041034082

ABSTRACT:
A method for the cold rolling of narrow flat lands on the cylindrical surface of heat exchanger tubing, just prior to the winding onto the tubing of one or more metal strips for the production of finned tubing, the device having pressure rollers on pressure levers carried by a journalled supporting spindle which rotates with the tubing, and a control sleeve inside the hollow spindle which, under the action of a linear actuator, interrupts the rolling action as desired, while the winding operation continues.

REFERENCES:
patent: 1734136 (1929-11-01), Kramer
patent: 3100930 (1963-08-01), Nihlen et al.

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