Aluminium soldering

Details Aluminium soldering Aluminium soldering

1977-11-03

1979-09-18

Lanham, C. W.

Metal fusion bonding

Process

With protecting of work or filler or applying flux

228263, B23K 3528, B23K 35368

Patent

active

041680278

ABSTRACT:
There is described a method of soft soldering aluminium or alloys thereof using a fluxed solder composition. The fluxed solder composition comprises a soldering flux suitable for use in soft soldering aluminium and its alloys and a soft solder alloy of lead, tin and silver and, optionally, up to 3% copper. The composition of the soft solder alloy is such that it contains at least 35% lead and 10% tin, and x% silver wherein x=0.1+(5.times.10.sup.-4)(Sn).sup.2 +(1.times.10.sup.-5)(Sn).sup.3, (Sn) being the percentage by weight of tin in the alloy.

REFERENCES:
patent: 2238069 (1941-04-01), Miller
patent: 2756497 (1956-07-01), Gale
patent: 2880126 (1959-03-01), Jordan et al.
patent: 3768141 (1973-10-01), Schmartz
patent: 3865641 (1975-02-01), Aronberg
patent: 4032059 (1977-06-01), Plegat

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