HDPE injection molded product surface flow marks

Fenómeno do problema

Wavy flow marks on the surface.

Análise das causas

Front temperature drops, speed fluctuates; low mold temperature.

Solução

①Increase mold temperature and melt temperature; ②optimize the speed curve; ③enlarge the gate.

Conclusão principal

Flow marks = a front management problem.

HDPE; '2079851475616104452; flow mark; mold temperature; speed curve

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