Molding Process
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LCP Melt Temperature Window
Fenómeno do problema
Product performance fluctuates, with different batches behaving inconsistently.
Análise das causas
LCP melt temperature is 300~350℃ for Type II and 350~400℃ for Type I; temperature deviating from the window changes crystallization and orientation states, and performance fluctuates accordingly.
Solução
①Set melt temperature according to grade type; ②calibrate thermocouples to measure actual melt temperature; ③control residence time within 10 minutes; ④establish process card management.; after adjustment, continuously sample to verify the effect, and resume mass production only after confirming stability
Conclusão principal
LCP temperature window is differentiated by grade type; although thermal stability is good, residence time still needs to be controlled to prevent performance decline.; after confirming effectiveness, solidify the parameters and practices into the work instruction to prevent recurrence
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