Molds & Tooling
7 مشاهدة
PP Tiger Stripe
ظاهرة المشكلة
【Problem Phenomenon】Alternating light and dark tiger stripes on PP surface
تحليل الأسباب
Unstable front advancement; low melt temperature and mold temperature or speed fluctuation; during on-site troubleshooting, verify item by item according to this mechanism to avoid blindly adjusting the machine based only on experience; this mechanism has been repeatedly verified by industry data and should be confirmed first during troubleshooting
الحل
Stabilize melt temperature and mold temperature; smooth speed curve; stable plasticization; after adjustment, take continuous samples to verify the effect, and resume mass production only after confirming stability; change only one variable at a time and record parameter changes to facilitate locating effective measures
الخلاصة الأساسية
For PP tiger stripes stabilize temperature and speed; after confirming effectiveness, fix the parameters and practices into the work instruction to prevent recurrence; include this case in the defect archive as a troubleshooting reference for similar problems in the future
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