Extrusion & Post 6 visualizações

TPU melt fracture causing surface defects

Fenómeno do problema

Periodic irregular wrinkles on the extrusion and injection surfaces

Análise das causas

The shear stress at the die exit exceeds the critical value, elastic instability

Solução

Reduce the extrusion speed, raise the die temperature, increase the gap

Conclusão principal

A typical rheological problem in extrusion processing

TPU、melt fracture

Isto foi útil?

0 pessoas acharam isto útil