| 摘要 |
PURPOSE:To enable to easily obtain fins with excellent heat transmission property by louvring by a method wherein spacermembers, over the both sides of which layers of brazing material are provided, finned members and plate members are assembled in a properly piled-up configuration and heated in a heating furance so as to be integrally jointed. CONSTITUTION:Each of the finned members 5 is a thin flat sheet subjected to be louvred and punched. Each of the spacer members 6 or the plate members 7 is a flat strip subjected to be slotted. The finned member 5, the spacer member 6 and the plate member 7 are put one on another. Because the brazing material layers are provided over the both sides of the apacer members 6, the finned member 5, the spacer member 6 and the plate member 7 put in the heating furnace in piled up state arebrazed one to another by heating. |
