Material Drying
3 조회수
PMMA Silver Streaks (Gas Streaks)
문제 현상
Silver streaks on the product surface, mostly occurring near the gate.
원인 분석
Vaporized moisture or volatiles follow the melt filling and leave streaks on the surface; insufficient drying, excessive melt temperature decomposition, and poor venting all induce them.
해결 방법
①Strengthen drying; ②Lower the melt temperature; ③Increase back pressure for venting; ④Improve mold venting.
핵심 요약
Silver streaks = check three: moisture + decomposition + venting.
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