A method for the production of media-carrying lines with a viewing window, as well as the media-carrying line with a viewing window

摘要

Initial injection fills two regions in the mold cavity (3, 5), leaving an empty zone (6) between them. A second transparent plastic is then injected by the nozzle (2). This plastic runs along the cavity, (limb 4 is now blocked), displacing still-fluid first melt from the interior and spreading it along the empty zones (6). A third stage of fluid (gas) injection completes the line.