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Kenplas Forum ==> Injection Molding (Machine) ==> Milky Preform Bottom (Crystallinity)
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1. Reduce heat transfer from hot manifold to caivty bottom;
2. Increase temperature setting of nozzle heater (inapplicable for hot plate mold);
3. Increase melting temperature of PET resin in barrel;
4. Speed up injection;
5. Reduce holding pressure;
6. Reduce cooling water flow.
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This forum published since July 03, 2002.
Renewed on June 22, 2005. |
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