Aluminum base fluxless brazing alloy

Details Aluminum base fluxless brazing alloy Aluminum base fluxless brazing alloy

1975-10-06

1977-08-09

Dean, R.

Specialized metallurgical processes, compositions for use therei

Processes

Free metal or alloy reductant contains magnesium

75142, 75147, C22C 2112

Patent

active

040408221

ABSTRACT:
A family of ductile, non-aggressive, low temperature brazing alloys, particularly suitable for brazing and diffusion-welding aluminum alloys, titanium alloys, beryllium alloys, boron-borsic-graphite composite structures to such alloys, diamond bonding and dissimilar metal joints of aluminum, titanium or steels. The family of aluminum base brazing alloys include, by weight, 0.1 to 5% magnesium, 0.1 to 5% rare earth, 4 to 15% silicon and an addition of 1 to 9% tin, 0.3 to 5% copper, 2 to 10% palladium, 1 to 6% gallium, 1 to 8% silver or 0.1 to 0.25% bismuth or strontium, with the balance aluminum. Where the addition is palladium, the silicon content may be 0 to 12%.

REFERENCES:
patent: 3440712 (1969-04-01), Stroup et al.

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