Molding Process
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LCP Holding Switchover Point Drift Affects Weight
Fenómeno do problema
【Problem Phenomenon】Product weight fluctuates with the holding switchover position, and dimensions drift accordingly
Análise das causas
LCP's rapid crystallization makes the effective holding window extremely narrow; a slight deviation of the switchover point amplifies the compensation difference into weight and dimensions; precision parts have high requirements for switchover repeatability
Solução
Precisely control holding switchover by position or cavity pressure; determine the optimal switchover point by short shot test; monitor switchover repeatability and include it in equipment spot checks; after adjustment, take continuous samples to verify the effect, and resume mass production only after confirming stability
Conclusão principal
Fast crystallization makes LCP's holding window narrow; switchover precision directly determines weight stability; after confirming effectiveness, solidify the parameters and practices into the work instruction to prevent recurrence
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