HEAT EXCHANGER AND METHOD FOR MANUFACTURING THE SAME

摘要

A method for manufacturing a heat exchanger according to the present invention includes the steps of forming a thermally sprayed layer on a surface of an aluminum tube core by thermally spraying Al-Si series alloy brazing material onto the surface of the aluminum tube core to obtain a tube 2, applying flux composite containing non-corrosive flux showing zinc substitution reaction onto a surface of the tube 2, combining the tube 2 with the fin 3, and brazing the tube 2 and the fin 3 in an combined state.