Fin for a plate heat exchanger, methods for the manufacture of such a fin, and a heat exchanger comprising such a fin

摘要

The fin according to the invention is produced from thick sheet-metal and has a pattern reproduced in a general direction (D2) in accordance with a geometric pitch (P) such that the ratio of the minimum thickness (e) of the sheet-metal to the geometric pitch (P) is greater than 0.2. The fin is obtained either by a hot-extrusion operation or by a material-removing machining operation.