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Kenplas Forum ==> Injection Molding (Machine) ==> Preform Body Opaque/Haze
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1. PET resin should be properly dried or dehumidified (drying temperature, duration);
2. Increase barrel temperature setting;
3. Increase RPM in case plasticization is insufficient;
4. Enhance cooling water for mold (Post crystallinity decrease melt temperature).
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This forum published since July 03, 2002.
Renewed on June 22, 2005. |
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