Injection Molding
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LLDPE mold temperature management
Problem Phenomenon
LLDPE '2079851475616104452 mold temperature set to 70℃, cycle prolonged and mold sticking.
Cause Analysis
LLDPE crystallizes fast; high mold temperature only prolongs the cycle; During on-site troubleshooting, verify item by item according to this mechanism, avoiding blindly adjusting the machine based only on experience; This mechanism has been repeatedly verified by industry data and should be confirmed first during troubleshooting.
Solution
Mold temperature controlled at 20-60℃; general parts 30-40℃; water channels ensure flow; 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.
Key Takeaway
LLDPE low mold temperature route; After confirming effectiveness, fix 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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