Injection Molding
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PC Flash and Overflow
Fenómeno del problema
[Problem Phenomenon] PC parting line flash, high trimming cost
Análisis de la causa
Excessive injection pressure, insufficient clamping and parting line wear; PC's high pressure demand tests the clamping; when troubleshooting on site, verify each item according to this mechanism one by one, and avoid blindly adjusting the machine based on experience alone
Solución
Reduce the injection pressure and holding pressure; verify the clamping force; repair the parting line; after adjustment, take samples continuously to verify the effect, and resume mass production only after confirming stability; change only one variable at a time and record parameter changes, so as to locate effective measures
Conclusión clave
For PC flash, first reduce the pressure, then check the clamping and parting line; 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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