Injection Molding
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Glass Fibre periodic surface waviness
Problembeschreibung
Glass Fibre product surface has periodic waviness with spacing 5-15mm
Ursachenanalyse
injection speed fluctuates periodically; hydraulic system unstable; screw rotation speed unstable
Lösung
1) overhaul injection system to stabilize pressure and speed; 2) replace hydraulic drive with servo motor drive; 3) PID control to stabilize injection parameters
Wichtigste Erkenntnis
waviness is caused by unstable injection; equipment overhaul and PID control are key
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