Extrusion & Post
4 visualizações
Poor dimensional accuracy of PET extruded profiles
Fenómeno do problema
Large cross-section dimensional fluctuation of PET extruded profiles, difficult to meet precision assembly requirements.
Análise das causas
Unstable extruder output (rotation speed fluctuation or uneven feeding), insufficient or uneven sizing die cooling, unstable haul-off speed.
Solução
Use metering feeding device to stabilize supply; optimize sizing die cooling design; precisely control haul-off speed (closed-loop servo); stabilize extrusion temperature ±2°C.
Conclusão principal
PET profile dimensional accuracy requires stable control of the entire process.
Isto foi útil?
0 pessoas acharam isto útil
Obrigado pelo seu comentário!