Injection Molding
11 조회수
Burning due to poor venting in PCTG '2079851475616104452
문제 현상
Burnt black spots appear at the product end or thin-wall areas.
원인 분석
Insufficient cavity venting; air compressed and heated burns the material, injection speed too fast.
해결 방법
Deepen and widen vent grooves; reduce injection speed; increase parting line venting.
핵심 요약
PCTG burning originates from poor venting.
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