Material Drying
5 مشاهدة
PMMA Silver Streaks (Gas Streaks)
ظاهرة المشكلة
Silver streaks on the product surface, mostly occurring near the gate.
تحليل الأسباب
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.
الحل
①Strengthen drying; ②Lower the melt temperature; ③Increase back pressure for venting; ④Improve mold venting.
الخلاصة الأساسية
Silver streaks = check three: moisture + decomposition + venting.
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