Injection Molding
4 görüntüleme
Orange peel texture on PU surface
Sorun Belirtisi
Orange-peel-like uneven texture on PU product surface, rough to touch
Neden Analizi
Mold temperature too low <30°C, product surface cools and solidifies rapidly, then the interior continues to shrink causing surface unevenness; injection speed too low
Çözüm
1) Increase mold temperature to 40-50°C to delay surface solidification; 2) Appropriately increase injection speed; 3) Increase holding pressure to reduce internal shrinkage
Temel Çıkarım
Orange peel is caused by rapid cooling and solidification; increasing mold temperature and holding pressure are key
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