Injection Molding
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PP Injection Part Gloss Deficiency
Problembeschreibung
PP parts are overall dull and not bright.
Ursachenanalyse
Low mold temperature and insufficient holding pressure cause poor surface replication; low mold polish grade; some grades are inherently matte.
Lösung
①Raise mold temperature and holding pressure; ②upgrade cavity polishing; ③confirm grade gloss characteristics; ④improve venting.
Wichtigste Erkenntnis
Gloss = replication + mold + grade, three elements.
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