Injection Molding
11 조회수
Gate blush in PET '2079851475616104452
문제 현상
Ring-shaped ripples or color differences (gate blush) appear around the gate of PET products, affecting appearance.
원인 분석
Melt flow at the gate is unstable (jetting effect); gate size does not match injection speed; venting in the gate area is poor.
해결 방법
Optimize gate design, enlarging it or changing the type; use multi-stage injection to control flow speed at the gate; improve venting; appropriately increase melt temperature.
핵심 요약
PET gate blush can be eliminated through gate design and injection process optimization.
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