Extrusion & Post
6 visualizações
Wrinkles in PET film winding
Fenómeno do problema
Transverse or longitudinal wrinkles appear when PET film is wound, increasing the scrap rate.
Análise das causas
Winding tension control is improper (too large, too small or uneven); uneven film thickness causes uneven stress distribution; roller surface friction is improper.
Solução
Optimize the winding tension curve (tapered tension control); improve thickness uniformity; use spreading rollers and a web guide system.
Conclusão principal
PET film winding quality is a comprehensive reflection of thickness, tension and equipment precision.
Isto foi útil?
0 pessoas acharam isto útil
Obrigado pelo seu comentário!