Turning parts, blowhead, blister foil plant, process for making a blister and blister foil

摘要

Film extrusion systems use winding parts to produce as homogeneous a melt as possible in operation. The winding parts are usually available as cylindrical or conical axial winding distributors or as radial winding distributors.The winding parts have winding channels. These are arranged in a multiple spiral order so that in the beginning sections fairly flat horizontal edges are formed and vertical edges are formed between the beginning of winding channels and transition sections of adjacent winding channels. The melt can easily stick there.The invention proposes to provide accelerators for melting in critical areas. For example, the invention envisages modifying the course or cross-section of the channels or the surface.