Method and apparatus for manufacturing a helically finned heat e

Details Method and apparatus for manufacturing a helically finned heat e Method and apparatus for manufacturing a helically finned heat e

1976-11-01

1977-10-04

Lanham, C.W.

Metal working

Means to assemble or disassemble

Puller or pusher means, contained force multiplying operator

29726, 29727, 29417, 113 1C, 156269, B21D 5302, B23P 1526

Patent

active

040515869

ABSTRACT:
A method and apparatus is disclosed for the manufacture of a continuous heat exchanger tube including helically winding a spine fin material on the outer wall of a base tube member. A preselected portion of the spine fin material is secured against movement relative to the base tube member. The heat exchanger is then severed in the secured portion so that a section of the secured portion is arranged at each end of the severed heat exchanger. The secured severed end sections are effective in maintaining the intermediate portion of the spine fin material from unwinding and, as a result, in heat transfer relationship with the base tube member.

REFERENCES:
patent: 2553142 (1951-05-01), McCreary
patent: 3022049 (1962-02-01), Abbott

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