Process for brazing metal, and apparatus therefor

Details Process for brazing metal, and apparatus therefor Process for brazing metal, and apparatus therefor

1994-10-07

1995-10-31

Heinrich, Samuel M.

Metal fusion bonding

With means to handle work or product

228 8, 432 25, 432 58, B23K 300, B23K 304

Patent

active

054622166

ABSTRACT:
In a process for brazing a metal in a continuous manner, a work consisting of a base metal and a part to be brazed thereto is disposed in a box-like heat retaining container which is opened at its upper portion to surround lower and side surfaces of the work and fixing the work by a retaining jig. The work within said heat retaining container is heated by a continuous combustion in a gas burner, so that the temperature of said work is risen to a predetermined preheating temperature. Then, the work is subjected to a soaking treatment at the preheating temperature by switching-over the combustion in the gas burner to a pulse combustion. The continuous combustion in the gas burner is restarted to rise the temperature of the work to a brazing temperature, and then, the part is brazed to said base metal with the temperature of the work maintained at the brazing temperature by switching-over the combustion in the gas burner to a pulse combustion.

REFERENCES:
patent: 3756489 (1973-09-01), Chartet
patent: 3769675 (1973-11-01), Chartet
patent: 4294395 (1981-10-01), Nayar
patent: 4918805 (1990-04-01), Liszka et al.
patent: 5232145 (1993-08-01), Alley et al.
patent: 5271545 (1993-12-01), Boswell et al.
patent: 5289968 (1994-03-01), Maeda et al.
patent: 5322209 (1994-06-01), Barten et al.
patent: 5397232 (1995-03-01), Nishimura

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