Extrusion & Post
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LCP Product Delamination and Peeling
Fenómeno do problema
Layered peeling appears on the product surface.
Análise das causas
The melt front rolls over and folds on the cavity surface (flow front rollover); improper injection speed or flow front temperature fluctuation disorders surface orientation and causes delamination.
Solução
①Optimize the injection speed curve for steady filling; ②appropriately increase melt and mold temperature; ③optimize the gate to reduce disturbance; ④check hot runner temperature uniformity.; after adjustment, continuously sample to verify the effect, and resume mass production only after confirming stability
Conclusão principal
LCP delamination is related to flow front behavior; steady filling is the key to prevention.; 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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