Molding Process
4 visualizaciones
EAA surface stress whitening
Fenómeno del problema
Stress whitening on the surface of stressed areas of EAA products affecting appearance and strength
Análisis de la causa
EAA molecular orientation under local stress causing refractive index difference and whitening; areas of internal stress concentration in the product
Solución
1) Reduce injection speed to reduce orientation stress; 2) Anneal at 80°C/2h to release stress; 3) Product design to avoid stress-concentrating sharp corners
Conclusión clave
Stress whitening is caused by orientation and internal stress; reducing orientation and annealing are the key
¿Le ha resultado útil?
0 personas encontraron esto útil
¡Gracias por sus comentarios!