Injection Molding
7 مشاهدة
EEA Surface Tiger-Skin Stripes
ظاهرة المشكلة
Tiger-skin stripes on the surface of EEA injection molded products, alternating light and dark stripes 2-5mm wide
تحليل الأسباب
Unstable injection speed, melt front fluctuating fast and slow; mold temperature low <30°C, front cools rapidly
الحل
1) Multi-stage injection slow-fast-slow to stabilize the front; 2) Increase mold temperature to 40-50°C; 3) Increase injection pressure to stabilize advancement
الخلاصة الأساسية
Tiger-skin stripes are caused by unstable injection front; multi-stage injection and high mold temperature are key
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