Injection Molding
11 조회수
Uneven crystallization white haze of PET injection products
문제 현상
White opaque areas appear locally on PET products, in obvious contrast with transparent areas.
원인 분석
Improper mold temperature control; local overcooling causes rapid PET crystallization forming spherulites; when mold temperature below 120°C, crystallization incomplete.
해결 방법
Increase mold temperature to 130-150°C, use a mold temperature controller for precise temperature control, optimize cooling water channels for uniform mold surface temperature.
핵심 요약
PET crystallization behavior is very sensitive to mold temperature; uniform mold temperature is key.
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