Welding of fins to tubing

Details Welding of fins to tubing Welding of fins to tubing

1980-11-17

1982-12-07

Goldberg, Elliot A.

Electric heating

Metal heating

Of cylinders

219 67, 219107, B23K 3106

Patent

active

043629210

ABSTRACT:
A method of manufacturing a solar panel element comprising a metal sheet or sheets secured to fluid-tight tubing substantially continuously along its length by metal which has been heated and cooled, e.g. weld metal, in which the tubing and the metal sheet or sheets are held in contact while they are heated to welding temperature, either forge welding or melting temperature. In the preferred methods, the heating is accomplished by high frequency, electric currents using a proximity conductor. Also, in the preferred methods, the tubing is formed with longitudinal lips as the heating is carried out, and the lips are secured together by welding them together simultaneously with the welding of the sheet or sheets to the tubing.

REFERENCES:
patent: 2236185 (1941-03-01), Murray
patent: 2809276 (1957-10-01), Smith
patent: 3375344 (1968-03-01), Kohler
patent: 3541296 (1970-11-01), Rudd
patent: 3588426 (1971-06-01), Harriau
patent: 3999029 (1976-12-01), Orr
patent: 4136272 (1979-01-01), Rudd

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