Processing Machinery
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LLDPE film temperature window
Problem Phenomenon
Different machines producing the same LLDPE formulation have large quality differences.
Cause Analysis
LLDPE is temperature-sensitive; machine temperature control differences are directly amplified into quality differences; inconsistent measured melt temperature is the root cause.; During on-site troubleshooting, verify item by item according to this mechanism, avoiding blindly adjusting the machine based only on experience.
Solution
①Unify the measured melt temperature benchmark across machines; ②calibrate thermocouples; ③establish standard process cards; ④test key indicators batch by batch.; After adjustment, continuously sample to verify the effect, and resume mass production only after confirming stability.
Key Takeaway
Cross-machine consistency relies on unifying measured benchmarks; process card management is the foundation of standardization.; After confirming effectiveness, fix the parameters and practices into the work instruction to prevent recurrence.
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