Extrusion & Post
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stress concentration Occurring in the corona treatment Stage of Cast polypropylene film
Problembeschreibung
stress concentration occurs in the film during the corona treatment stage, affecting production stability and product quality.
Cast polypropylene film is sensitive to the process parameters of this stage.
Ursachenanalyse
(1) The process parameters of the corona treatment stage are set improperly
(2) The equipment condition or precision is insufficient
(3) Raw material characteristics (cast extrusion, chill roll control, high transparency, good heat sealability) cause processing difficulties
(4) The environmental conditions (temperature and humidity) are unsuitable
(5) Improper operation or inadequate monitoring
Lösung
(1) Optimize the process parameters of the corona treatment stage, and control the temperature within the range of 230-270°C
(2) Check and maintain the equipment to ensure operating precision
(3) Select processing process parameters suitable for cast polypropylene film
(4) Control the temperature and humidity of the production environment
(5) Strengthen operation training and process monitoring
Wichtigste Erkenntnis
The process parameters of each stage of film production need to be precisely controlled; equipment condition and raw material quality are the foundation.
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