Heat exchanger made of aluminum.

摘要

A heat exchanger made of aluminum and comprising a tube and a fin joined thereto by a fillet comprising primarily of zinc. The tube and the fin are each prepared from a material made of aluminum and nobler than the fillet by at least 0.325 V in terms of potential. The use of the material for forming the tube and the fin prevents cracks from developing in the vicinity of the interface between the fillet and the tube or the fin. <IMAGE>