This device, and filler metal for fluxless brazing

摘要

The invention relates to the industry of the brazing. / p & & p & device characterizes in that it comprises a frame 1 supporting a crucible 2 to a bath of molten filler metal, the bottom of said crucible in view of the cross-member is leakproof manner by a sonotrode 6 sliding under the action of a jack 13 is fixed on said frame, with a generating ultrasounds 10 associated with the sonotrode and the heating means controles associated with said crucible, the active end 16 of said transducer being inground of at least one recess 17 of a shape complementary to at least a portion of the outer surface of the pieces to be brazed, said jack moving alternatively, the said active end in and out of the bath. / p & & p & application in particular to the brazing of sticks of aluminium tubes for heat exchangers e.