Metal fusion bonding – Process – Specific rate of varying temperature or schedule of distinct...
Patent
1993-11-09
1995-06-27
Rosenbaum, Mark
Metal fusion bonding
Process
Specific rate of varying temperature or schedule of distinct...
228902, B23K 5213, B23K 522
Patent
active
054273056
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-shaped 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 raised 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 raise 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: 4918805 (1990-04-01), Ligzka et al.
patent: 5232145 (1993-08-01), Alley et al.
patent: 5289968 (1994-03-01), Maeda et al.
Epel Jeanne M.
Rosenbaum Mark
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