Injection Molding
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EVA '2079851475616104452 mold sticking
Fenómeno do problema
The product sticks to the mold and demolding is difficult.
Análise das causas
EVA melt has strong tack and easily adheres to the mold surface; high mold temperature or insufficient release agent aggravates mold sticking.; during on-site troubleshooting, verify item by item according to this mechanism, and avoid blindly adjusting the machine based on experience alone
Solução
①Use a release agent; ②appropriately lower the mold temperature; ③polish the mold surface; ④optimize the ejection design.; after adjustment, take consecutive samples to verify the effect, and resume mass production only after confirming stability
Conclusão principal
EVA tack is a material characteristic; the release agent and mold surface condition are the main countermeasures.; after confirming effectiveness, fix the parameters and practices into the work instruction to prevent recurrence
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