Extrusion & Post
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HDPE Opening Property
Fenómeno do problema
HDPE film blocks and is difficult to open after winding
Análise das causas
Film surface smoothness superimposed with static electricity causes interlayer blocking; during on-site troubleshooting, verify item by item according to this mechanism to avoid blindly adjusting the machine based solely on experience; this mechanism has been repeatedly verified by industry data and should be confirmed first during troubleshooting
Solução
Add anti-blocking agent to the formula; control winding tension; corona treatment; after adjustment, continuously sample to verify the effect, and resume mass production only after confirming stability; change only one variable at a time and record parameter changes to facilitate locating effective measures
Conclusão principal
Film opening relies on anti-blocking agent and tension management; after confirming effectiveness, solidify the parameters and practices into the work instruction to prevent recurrence; include this case in the defect archive as a reference for troubleshooting similar problems in the future
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