Molds & Tooling
4 مشاهدة
Skewed deformation of PET bottle mouths
ظاهرة المشكلة
The thread area of the PET bottle mouth is skewed and elliptically deformed, causing poor sealing and difficult cap screwing.
تحليل الأسباب
Insufficient cooling of the preform mouth; deformation due to excessive temperature during demolding; unreasonable cooling water channel design at the bottle mouth; uneven demolding force.
الحل
Strengthen bottle mouth cooling, increasing cooling time by 0.5-1s; optimize bottle mouth water channels; adjust demolding parameters to ensure balanced ejection.
الخلاصة الأساسية
PET bottle mouth precision directly affects sealing; mouth cooling and demolding are key.
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