Molds & Tooling
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POM sticking to mold
Fenómeno do problema
Products grip the core tightly and are difficult to demold.
Análise das causas
POM has large crystallization shrinkage and tightly grips the core; too low mold temperature causes faster shrinkage and tighter grip; insufficient draft.
Solução
①Increase mold temperature; ②check and increase draft; ③reduce holding pressure; ④polish the core.
Conclusão principal
POM mold sticking = crystallization gripping force, and increasing mold temperature is the key.
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