The compound material null junction by the brazing filler metal and this brazing filler metal for junction of aluminum alloy and

摘要

PURPOSE: To provide high joint strength by joining the member of aluminum alloy with the member of copper of arbitrary shape at the relatively low temperature without executing the plating on the aluminum alloy or using the flux. ;CONSTITUTION: The brazing filler metal is mainly composed of Al, and contains 30-80wt.% Al, and as additives, 10-40wt.% Cu or Ge, 10-40wt.% Ag, abd 0-10wt.% Si. One or more kinds of ≤15wt.% in total Mg, Bi, Zn and Mn in addition to the above-mentioned elements may be added. A composite material 10 consisting of aluminum alloy and copper can be obtained by joining the member 11 of aluminum alloy with the member 12 of copper at the relatively low temperature of ≤520°C by using this brazing filler metal.;COPYRIGHT: (C)1995,JPO