Material Drying
6 Aufrufe
PET Preform Re-Moistening After Drying
Problembeschreibung
Drying is qualified but occasional haze still occurs in blowing.
Ursachenanalyse
After drying, preforms are re-moistened by exposure in humid environments; open conveying process.
Lösung
①Sealed conveying after drying; ②shorten exposure time; ③hopper heat preservation.
Wichtigste Erkenntnis
Preventing re-moistening = the second half of drying.
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