Molding Process
3 Aufrufe
LLDPE rotomolding application
Problembeschreibung
LLDPE rotomolded products have many bubbles and insufficient strength, or are undercooked or overcooked
Ursachenanalyse
LLDPE for rotomolding needs to be ground into uniform 35-mesh powder; bubbles are a sign of undercooking; overcooking causes warpage and deformation; bubble monitoring is the key to judging doneness
Lösung
①Grind LLDPE into uniform 35-mesh particles; ②monitor the degree of bubble disappearance during baking; ③extend baking when bubbles are many, shorten it when warped; after adjustment, continuously sample to verify the effect, and resume mass production only after confirming stability
Wichtigste Erkenntnis
Doneness judgment in LLDPE rotomolding relies on bubbles; 35-mesh powder plus bubble monitoring is the core of process control; after confirming effectiveness, fix the parameters and practices into the work instruction to prevent recurrence
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