Injection Molding
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Excessive Shrinkage of LDPE Injection Molded Products
Fenómeno do problema
Dimensions are undersized.
Análise das causas
High shrinkage + insufficient holding pressure; the design shrinkage value was set too low.
Solução
①Increase holding pressure; ②Measure actual shrinkage and correct the mold; ③Unify the measurement timing.
Conclusão principal
Dimension = holding pressure + measured correction.
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