| 摘要 |
The invention relates to a method and a device for manufacturing heat-exchanger elements and to a corresponding heat-exchanger element consisting of a tubular main body (1) and ribs (2) which enlarge its heat-exchanging surface. In order to be able to attach ribs (2) by a continuous method and with a low outlay on equipment, even in the case of main-body profiles (1), the cross-section of which has a large width in relation to its height, the ribs (2) are formed by rib sheets which are drawn off from a roll of sheet metal, are provided with V-shaped or rounded corrugations in profiling devices (3), are positioned on the broad sides (1a) of the main-body profile (1) and are welded to the latter. The application of the profiled rib sheets (2), their positioning in relation to the main-body profile (1) and the movement of the main-body profile (1) in the longitudinal direction are accomplished by means of a special driving apparatus (6a,6b,6c). Welding is preferably performed by means of laser heads (7a). …<IMAGE>… |
