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Article | REF: AM3685 V1

Thermal injection of thermoplastics. Optimization

Authors: Pierre MOUSSEAU, Alain SARDA, Rémi DETERRE

Publication date: January 10, 2006

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1. Optimizing cooling of injection-molded parts

1.1 Influence of solidified thickness on filling pressure and flow rate

When filling the cavity of an injection mold, a solid sheath forms near the walls (y(t), figure 1 ). This solidification is likely to significantly reduce the thickness available for flow (average liquid vein h(t), figure 1 ).

Cross-section of a plane flow of a solidifying polymer
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Optimizing cooling of injection-molded parts
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