Cold-welded heat exchanger member

Details Cold-welded heat exchanger member Cold-welded heat exchanger member

1979-01-23

1980-12-09

Richter, Sheldon

Heat exchange

Conduit within, or conforming to, panel or wall structure

Means spanning side-by-side tube elements

291573C, 29521, 126447, F28F 122, F24J 302

Patent

active

042379717

ABSTRACT:
A heat exchanger for solar collector apparatuses comprises two metal layers (10, 11) abutting each other and at least one metal pipe (12) for a heat-carrying medium arranged between the layers. The metal layers are cold-welded together on either side of the pipe to form heat-conveying fins and the pipe is cold-welded to at least one of the metal layers. The exchanger has a greater total goods thickness at the pipe than at the fins to allow a comparatively high heat-carrying medium pressure. (FIG. 1). For manufacturing the heat exchanger two metal strips and a metal pipe are continuously fed between two rolls, of which at least one is provided with a groove corresponding to the pipe. The roll pressure is selected so that the metal strips and the metal pipe are subjected during cold rolling to a thickness reduction of at least 60% during the passage between the rolls, so that the strips and the pipe are cold-welded together.

REFERENCES:
patent: 3962766 (1976-06-01), Pompidor et al.
patent: 4008845 (1977-02-01), Bleckmann
patent: 4062350 (1977-12-01), Reed
patent: 4066121 (1978-01-01), Kleine et al.
patent: 4069811 (1978-01-01), Tabor
patent: 4120351 (1978-10-01), Kleine et al.
patent: 4158908 (1979-06-01), Block et al.
patent: 4160476 (1979-07-01), Ashton et al.

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