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Published in:
2014 | OriginalPaper | Chapter
Die Flow Analysis and Mathematical Modeling of Film Blowing
Authors : J. Vlachopoulos, V. Sidiropoulos
Published in: Film Processing Advances
Publisher: Carl Hanser Verlag GmbH & Co. KG
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In blown film extrusion, the polymer is melted in an extruder and the hot melt is pumped through a die to form a thin-walled tube, which is simultaneously axially drawn and radially expanded. In most installations the extruders are horizontal and the blown film bubble is formed vertically upward as shown in Fig. 4.1.