Injection Molding
2 visualizaciones
Severe flash in EVA '2079851475616104452
Fenómeno del problema
EVA injection molded products have parting line flash 0.05-0.1mm with width >2mm requiring secondary trimming
Análisis de la causa
Injection pressure too high >80MPa with melt overflowing from parting line; clamping force insufficient; mold parting line fitting gap >0.02mm
Solución
1) Reduce injection pressure to 60-70MPa; 2) Increase clamping force or use larger tonnage '2079851475616104452 machine; 3) Mold fitting gap <0.02mm; 4) Increase melt viscosity to reduce mold penetration tendency
Conclusión clave
Flash is caused by high pressure injection and mold gap; reducing pressure and improving mold fitting are key
¿Le ha resultado útil?
0 personas encontraron esto útil
¡Gracias por sus comentarios!