Injection Molding
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PCABS Flash Overflow
Fenómeno del problema
[Problem Phenomenon] PC/ABS parting line flash increases trimming cost
Análisis de la causa
Excessive injection pressure, insufficient clamping, and parting line wear; PC/ABS has better flow than pure PC and is more prone to flash; during on-site troubleshooting, verify item by item according to this mechanism, and avoid blindly adjusting the machine based only on experience
Solución
Reduce injection pressure and holding pressure; verify clamping force; repair parting line fit; after adjustment, continuously sample to verify the effect, and resume mass production after confirming stability; change only one variable at a time and record parameter changes to facilitate locating effective measures
Conclusión clave
For PC/ABS flash, first reduce pressure, then check clamping and the parting line; after confirming effectiveness, fix the parameters and practices into the work instruction to prevent recurrence; include this case in the defect archive as a troubleshooting reference for similar problems in the future
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