Weld-solder filler

Abstract

Conventional weld fillers contain copper, aluminum and manganese. These weld fillers are as a rule not suited for the welding of thin or rust-free sheet metals. The inventive weld filler contains 0.5 to 6.0 percent by weight Al, 0.5 to 8.0 percent by weight Mn, the usual impurities are less than or equal to 1.0 percent by weight and as the remainder Cu. This weld filler is better suited for the welding of thin or rust-free sheet metals than the up to now known weld fillers.

What is claimed is:  
     
         1 . In a weld-solder filler composition utilized in soldering and welding processes, the improvement comprising said weld-solder filler composition containing, in percent by weight: 
 0.5 to 7.0% Al;    0.5 to 2.0% Mn;    0.01 to 4% Fe;    0.01 to 6% Ni;    no more than 1.0% impurities; and    the remainder being Cu.    
     
     
         2 . The weld-solder filler composition of  claim 1 , wherein the following impurities, if present, are contained in the indicated ranges: 
 0.01 to 0.3% Si;    0.01 to 1.0% Zn;    0.01 to 0.5% Sn;    0.01 to 0.1% Cr; and    0.01 to 0.1% Co.    
     
     
         3 . The weld-solder filler composition of  claim 1 , wherein 6% Al, 1% Mn and 1% Ni are present in the filler composition.  
     
     
         4 . The weld-solder filler composition of  claim 1 , wherein 5% Al, 1% Mn and 1% Ni are present in the filler composition.  
     
     
         5 . The weld-solder filler composition of  claim 1 , wherein 5% Al is present in the filler composition.