Molds & Tooling
6 مشاهدة
PP Mold Sticking
ظاهرة المشكلة
Parts stick to the cavity or grip the core tightly, getting scratched during demolding.
تحليل الأسباب
Excessive holding pressure, high melt and mold temperature, insufficient draft angle, roughened cavity; PP's shrink-and-grip-core characteristic aggravates sticking.
الحل
①Reduce holding pressure and melt temperature; ②increase draft angle; ③polish the cavity along the demolding direction; ④optimize ejection balance.
الخلاصة الأساسية
For mold sticking, reduce pressure first, then fix draft and polishing.
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