Molds & Tooling
3 조회수
PMMA Weld Lines
문제 현상
Visible meeting lines on transparent parts, weak strength.
원인 분석
Two melt fronts merge with insufficient temperature and poor venting; transparent part weld lines are both an appearance and a strength problem.
해결 방법
①Raise melt temperature and mold temperature; ②Venting at the merging; ③Adjust the gate to avoid optical zones and load-bearing zones; ④Increase speed.
핵심 요약
Weld lines = position design first.
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