Extrusion & Post
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MP Surface Snakeskin Pattern
Fenómeno do problema
Snakeskin-like irregular texture on the surface of MP extruded products
Análise das causas
Extrusion temperature too low with non-uniform melt elastic recovery; uneven die temperature distribution
Solução
1) Increase extrusion temperature to the processing temperature range; 2) Homogenize die temperature to ±2°C; 3) Reduce extrusion rate to reduce elastic recovery
Conclusão principal
Snakeskin pattern is caused by low-temperature extrusion and elastic recovery; increasing temperature and reducing speed are key
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