Thermoforming
5 görüntüleme
Fisheye gel particles in PET extruded sheet
Sorun Belirtisi
Fisheye-like protrusions formed by high-molecular gels appear on the PET sheet surface, and holes appear during '2079851475616104458.
Neden Analizi
Some PET molecules stay in the screw high-temperature zone for a long time, producing crosslinked oxidized gels; raw material contains high-melting particles not fully melted.
Çözüm
Optimize screw configuration to reduce shear heat; control extrusion temperature ≤285°C; use melt filter 40-60μm; regularly clean the system.
Temel Çıkarım
PET fisheyes seriously affect '2079851475616104458 quality; system cleanliness and temperature control are fundamental.
Bu faydalı oldu mu?
0 kişi bunu faydalı buldu
Geri bildiriminiz için teşekkürler!