Injection Molding
6 مشاهدة
PP Flash Overflow
ظاهرة المشكلة
【Problem Phenomenon】PP parting line flash, high trimming cost
تحليل الأسباب
PP has good fluidity and easily overflows; injection pressure too high, insufficient clamping, parting line wear, venting too deep; during on-site troubleshooting, verify item by item according to this mechanism to avoid blindly adjusting the machine based only on experience
الحل
Reduce injection pressure and holding pressure; verify clamping force; repair parting line; check venting depth; 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
PP flash is due to good fluidity, reduce pressure and check clamping and parting line; 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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