Extrusion & Post
14 visualizaciones
Glass Fibre extrusion rough surface
Fenómeno del problema
Glass Fibre extruded product surface roughness Ra>5μm, exceeding requirement
Análisis de la causa
Extrusion temperature too low <160°C, melt flow unstable; die inner wall rough or damaged; Glass Fibre melt elasticity, extrusion swell uneven
Solución
1) Raise extrusion temperature to 160-220°C; 2) polish die inner wall Ra<0.4μm; 3) reduce extrusion rate 10-15%; 4) add 0.3-0.5wt% external lubricant
Conclusión clave
Rough surface is caused by low-temperature extrusion and die defects; raising temperature and polishing die are core countermeasures
¿Le ha resultado útil?
0 personas encontraron esto útil
¡Gracias por sus comentarios!