Injection Molding
2 visualizaciones
Premature Gate Freezing in CMC '2079851475616104452
Fenómeno del problema
In CMC injection molded products, the gate freezes within 0.5-1s in the holding stage, holding pressure cannot be transmitted, and product shrinkage is severe
Análisis de la causa
Gate size is too small, diameter <1mm, causing rapid freezing; injection temperature is low; mold temperature is low, accelerating gate cooling
Solución
1)Increase gate diameter to 1.5-2mm; 2)Increase injection temperature to 20-25°C; 3)Increase mold temperature to 40-50°C to delay gate freezing; 4)Holding pressure decays in steps rather than being suddenly released
Conclusión clave
Premature gate freezing is caused by small gate and low temperature; enlarging the gate and increasing temperature are fundamental measures
¿Le ha resultado útil?
0 personas encontraron esto útil
¡Gracias por sus comentarios!