Extrusion & Post 9 Aufrufe

EMA surface snakeskin texture

Problembeschreibung

Snakeskin-like irregular texture on EMA extruded product surface

Ursachenanalyse

Extrusion temperature too low with uneven melt elastic recovery; uneven die temperature distribution

Lösung

1) Increase extrusion temperature to the processing temperature range; 2) Homogenize die temperature within ±2°C; 3) Reduce extrusion rate to reduce elastic recovery

Wichtigste Erkenntnis

Snakeskin texture is caused by low temperature extrusion and elastic recovery; raising temperature and reducing speed are key

EMA snakeskin texture extrusion temperature elastic recovery die temperature control

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EMA surface snakeskin texture

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