Patent ID: 7926701

Claim:
Process for assembly of aluminum alloy plates comprising fluxless brazing of the aluminum alloy plates to form an assembly under a controlled atmosphere consisting essentially of nitrogen and/or argon at a temperature of between 580° C. and 620° C., and rapid cooling, and in which at least one of the aluminum alloy plates consists essentially of: (a) a core alloy with composition (% by weight): Si 0.3-1.0; Fe<1.0; Cu 0.3-1.0; Mn 0.3-2.0; Mg 0.3-3.0; Zn<6.0; Ti<0.1; Zr<0.3; Cr<0.3; Ni<2.0; Co<2.0; Bi<0.5; Y<0.5; other elements <0.05 each and <0.15 total, remainder aluminum, and (b) an aluminum brazing alloy coated as a single layer on at least one face of the core alloy, the aluminum brazing alloy including 4% to 15% of silicon and 0.01% to 0.5% of at least one element selected from the group consisting of Ag, Be, Bi, Ce, La, Pb, Pd, Sb, Y or mischmetal, the aluminum brazing alloy being free of sodium.