Injection Molding 3 조회수

Orange peel texture on PU surface

문제 현상

Orange-peel-like uneven texture on PU product surface, rough to touch

원인 분석

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

해결 방법

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

핵심 요약

Orange peel is caused by rapid cooling and solidification; increasing mold temperature and holding pressure are key

PU orange peel mold temperature holding pressure surface solidification

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Orange peel texture on PU surface

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