Injection Molding
8 visualizaciones
EVA '2079851475616104452 flash
Fenómeno del problema
Flash on the parting line of the product.
Análisis de la causa
EVA has good flowability and easily penetrates the parting line gap under high pressure; insufficient clamping or mold wear aggravates it.; during on-site troubleshooting, verify item by item according to this mechanism, and avoid blindly adjusting the machine based on experience alone
Solución
①Check the clamping force; ②overhaul the parting line; ③lower the injection pressure; ④optimize the holding pressure curve.; after adjustment, take consecutive samples to verify the effect, and resume mass production only after confirming stability
Conclusión clave
Flash control is investigated according to clamping and mold condition; the low viscosity of EVA requires stricter parting line precision.; after confirming effectiveness, fix the parameters and practices into the work instruction to prevent recurrence
¿Le ha resultado útil?
0 personas encontraron esto útil
¡Gracias por sus comentarios!