Apparatus for bending a heat-exchanger tube

Details Apparatus for bending a heat-exchanger tube Apparatus for bending a heat-exchanger tube

1995-09-22

1997-09-23

Crane, Daniel C.

Metal deforming

By use of non-deforming work-gripping clamp and relatively...

Plural or complex apparatus

72388, 72369, 72428, B21D 7024

Patent

active

056692617

ABSTRACT:
A method and apparatus for bending a heat-exchanger tube, which heat-exchanger tube have heat-exchanger ribs preferably having a needle construction. In the method and apparatus, the heat-exchanger tubes are placed one above the other to be defined by one another to form a battery. The battery of heat-exchanger tubes is fed first into a first bending-device portion of the bending device in which the heat-exchanger tube is bent in one direction. After this, the tube battery is fed further, and the bending is performed in the second bending-device portion in the opposite direction of bending, whereby a wave-shaped form is obtained.

REFERENCES:
patent: 3022 (1843-03-01), Latta
patent: 1512002 (1924-10-01), Kardong
patent: 3857271 (1974-12-01), Gott
patent: 4249407 (1981-02-01), Fogleman
patent: 4681210 (1987-07-01), Miki

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