Extrusion & Post
14 visualizaciones
EVOH Extruded Pipe Ovality Out of Specification
Fenómeno del problema
EVOH extruded pipe ovality >1.05 exceeds the 1.02 standard requirement
Análisis de la causa
Pipe cooling uneven, single-side cooling; sizing sleeve design unreasonable; haul-off clamping force uneven causing pipe deformation under pressure
Solución
1) Use annular spray cooling to ensure uniform temperature reduction; 2) Optimize sizing sleeve inner diameter and taper design; 3) Multi-track uniform clamping haul-off; 4) Increase vacuum sizing section length to ensure full sizing
Conclusión clave
Ovality is caused by uneven cooling and clamping; annular cooling and uniform haul-off are key
¿Le ha resultado útil?
0 personas encontraron esto útil
¡Gracias por sus comentarios!