Procedure for the manufacture of a heat exchanger tube, with a surface provided with soldered radial pins. (Machine-translation by Google Translate, not legally binding)

摘要

Process for manufacturing a heat exchanger tube, with a surface provided with welded radial pins, characterized by using rectilinear pins, whose end intended to be applied and welded to the tube has a widened shape, ending in a bulged face; in applying said pins against the tube by means of welding electrodes of corresponding profile, of which, at least, the part of its surface capable of exerting a rubbing contact against the body of the spike is free of copper, and in making the welding current in the immediate vicinity of the widened part. (Machine-translation by Google Translate, not legally binding)