| 摘要 |
The invention relates to a method for increasing the cooling power of an extrusion line and for extruding a plastic profile in an energy-efficient manner, in particular a plastic tube, having the following steps: a) melting plastic in an extruder (1), b) shaping a plastic strand and feeding the plastic strand to a tool (2), c) shaping a plastic profile using the tool (2), and d) calibrating and curing the profile by cooling the profile in a cooling and/or calibrating process (3), wherein a gaseous medium is suctioned through one or more cooling tanks (7, 8, 9) in order to cool the exterior of the profile (6). According to the invention, the temperature and the saturation of the gaseous medium is increased between an inlet region (19) and an outlet region (20) for the gaseous medium, and a liquid medium is added between the inlet region (19) and the outlet region (20) via spray nozzles (22), said liquid medium being evaporated by a heating process and the saturation of the gaseous medium being increased. The invention further relates to a device related to the method. |
