Injection Molding
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EVA surface orange peel texture
Problembeschreibung
EVA product surface has orange-peel-like uneven texture with rough hand feel
Ursachenanalyse
Mold temperature too low <30°C; after the product surface rapidly cools and solidifies, the interior continues to shrink, causing surface unevenness; injection speed too low
Lösung
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
Wichtigste Erkenntnis
Orange peel texture is caused by rapid cooling and solidification; increasing mold temperature and holding pressure are key
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