Electric heating – Metal heating – By arc
Patent
1985-07-19
1987-12-29
Goldberg, E. A.
Electric heating
Metal heating
By arc
219 85M, 219 99, B23K 110
Patent
active
047162724
ABSTRACT:
A method of attaching a connection piece of metal to a metal surface by brazing wherein the required heat is generated by an electric arc. The heat generated by the electric arc is conducted through at least a portion of the connection piece and melts a brazing metal provided between the connection piece and the metal surface. The heat conducting portion of the connection piece prevents direct contact between the electric arc, the metal surface and the brazing metal during melting which prevents disadvantageous thermal actuation of the metal surface. When the current to the electric arc has been disconnected, a mechanical force is applied to the heat conducting portion of the connection piece pressing the latter against the metal surface and pressing out a portion of the brazing metal from underneath the remaining joint-forming surfaces of the connection piece.
REFERENCES:
patent: 2711798 (1955-06-01), Aversten
patent: 3735088 (1973-05-01), Hall
patent: 4195279 (1980-03-01), Lemcoe et al.
patent: 4333598 (1982-06-01), Ittner et al.
Japanese 58 110 171, (Pat. Abstracts of Japan vol. 7, No. 215, (M 244) (1360), Sep. 22, 1983.
Blad Per A.
Johansson Rolf
AGA Aktiebolag
Goldberg E. A.
Sigda C. M.
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