Method and apparatus for producing corrugated sheets and apparatus for treating fluids

摘要

The method comprises carrying out a folding and swaging a sheet metal band in successive steps by means of opposite guides with an alternate bringing together and separating movement. The resulting wave (1) has two parallel lateral edges (2,3). Each edge forms a repetitive zigzag profile (4) with rectilinear sides (5) and upper (6) and lower (7) crest with as small a radius as possible. An Independent claim is included for a device for implementing the method.