PROCEDE DE FABRICATION D'UN ECHANGEUR DE CHALEUR

摘要

A method for manufacturing a heat exchanger comprises the steps of forming holes in a metal tube sheet in a desired pattern, placing a sheet of brazing foil over the tube sheet, piercing the foil with a plurality of punches aligned with the tube sheet holes, thereby staking the brazing foil segments through the tube sheet holes, pressing the tube ends through the tube sheet holes and foil segments, and heating the end of the assembly until the brazing foil melts.