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Control of Physical Processes in an Extrusion Line Polymer Sleeves Production


[ 1 ] Instytut Konstrukcji Maszyn, Wydział Inżynierii Mechanicznej, Politechnika Poznańska | [ P ] employee

Scientific discipline (Law 2.0)

[2.9] Mechanical engineering

Year of publication


Published in

Applied Sciences

Journal year: 2022 | Journal volume: vol. 12 | Journal number: iss. 20

Article type

scientific article

Publication language


  • polyethylene
  • extrusion
  • manufacturing
  • polymer sleeve
  • crystallization
  • material properties

EN This article describes the operation principle of an extrusion line for producing a polypro‐ pylene film for sleeves. The advantages and disadvantages of the technological and structural na‐ ture for an extrusion line are presented, as well as the stages of polymer sleeves with the calculation of technological parameters and a description of the main purpose of each stage. The film quality is described, such as the turbidity, coefficient of friction, glossiness, and breaking strength. The de‐ pendence of the milkiness on the average cooling temperature of the extruder head is defined. The glossiness dependence is calculated on the cooling temperature of the extruder head. The depend‐ ence of the friction coefficient on the cooling temperature of the extruder head was established. The influence of the crystallization line height on the glossiness of the film is defined. The influence of the crystallization line height on the milkiness is shown. The dependence of fluctuations in the av‐ erage thickness (thickness difference) of the film on the thickness of the forming slot is found. The dependence of fluctuations in the average thickness (thickness difference) of the film and degree of inflation of the sleeve is discovered. The relationship between the quality parameter of the film and technological parameters of its production process has been determined. An automated system for temperature control has been developed in the production of polyethylene film by installing a tem‐ perature sensor with feedback.

Pages (from - to)

1-10309 - 17-10309





article number: 10309

License type

CC BY (attribution alone)

Open Access Mode

open journal

Open Access Text Version

original author's version

Date of Open Access to the publication

at the time of publication

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