Extrusion & Post
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DSTDP surface snakeskin pattern
Problembeschreibung
DSTDP extruded product surface has snakeskin-like irregular texture
Ursachenanalyse
Extrusion temperature too low, melt elastic recovery uneven; die temperature distribution uneven
Lösung
1) Raise extrusion temperature to processing temperature range; 2) homogenize die temperature ±2°C; 3) reduce extrusion rate to reduce elastic recovery
Wichtigste Erkenntnis
Snakeskin pattern is caused by low-temperature extrusion and elastic recovery; raising temperature and reducing speed are key
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