PROCESSO PARA O FABRICO DE UM TUBO COM ALETAS

摘要

The method involves applying fins to the pipe (2) by winding a strip of copper (3) around it in a helix. The surface (6) of the pipe only in the contact zone (7) between the pipe and the lower edge of the copper strip is continuously melted by a laser beam before the copper strip is applied. The surface is melted in a region (10) whose extent in the axial direction is greater than the width of the lower edge (8) of the strip. The unmelted lower edge of the strip is set into the molten surface and fixed to the pipe as the molten material sets.