Injection Molding
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Dimensional Shrinkage of PC Products
Fenómeno do problema
The PC '2079851475616104452 shrinkage is 0.5-0.7%, and its fluctuation affects dimensional accuracy.
Análise das causas
PC is an amorphous material; its shrinkage is related to holding pressure, mold temperature, and cooling; process fluctuations cause shrinkage changes.
Solução
Stabilize the holding pressure and extend the shrinkage compensation; keep the mold temperature consistent; keep the parameters of each shot consistent.
Conclusão principal
PC shrinkage control is the basis of precision parts.
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