SIS melt fracture causing surface defects

문제 현상

Periodic irregular wrinkles on extrusion and injection surfaces

원인 분석

Shear stress at the die exit exceeds the critical value, elastic instability

해결 방법

Reduce extrusion speed, increase die temperature, increase the gap

핵심 요약

A typical rheological problem in extrusion processing

SIS melt fracture

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