Brazing method with flux of alminium and furnace therefor

Details Brazing method with flux of alminium and furnace therefor Brazing method with flux of alminium and furnace therefor

1997-04-21

1999-06-15

Heinrich, Samuel M.

Metal fusion bonding

Process

With protecting of work or filler or applying flux

228217, 22826251, B23K 3102, B23K 3538

Patent

active

059113570

ABSTRACT:
A method of brazing aluminium parts with a solder of a melting point of 500-630.degree. C. and a flux of a melting point of 550-500.degree. C., the brazing being made by successively heating them at a comparatively low temperature of 580-660.degree. C. under an inert gas atmosphere filled in an elongated muffle which is made of carbon, graphite or carbon fibre-reinforced carbon, wherein the muffle which contributes to keep the atmosphere at a high purity shall not be damaged by the flux liquidized with the heating of the parts, and wherein carbon of the muffle works to keep the atmosphere inert whereby the flux itself is also prevented from oxidation.

REFERENCES:
patent: 3116549 (1964-01-01), Born et al.
patent: 3457630 (1969-07-01), Schwartz et al.
patent: 3673678 (1972-07-01), Moreau et al.
patent: 4804128 (1989-02-01), Brittin
patent: 5532462 (1996-07-01), Butwell et al.

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