Molds & Tooling
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PS Product Demolding Draft Design
Fenómeno do problema
Product demolding scratches occur frequently.
Análise das causas
PS is very brittle and has strong gripping force, and ejection causes damage when demolding draft is insufficient.; during on-site troubleshooting, verify item by item according to this mechanism to avoid blindly adjusting the machine based only on experience; this mechanism has been repeatedly verified by industry data and should be confirmed first during troubleshooting
Solução
①Demolding draft takes 1.5~2° or more; ②polish the cavity; ③balanced ejection; ④increase draft for deep-cavity parts.; after adjustment, take continuous samples to verify the effect, and resume mass production only after confirming stability
Conclusão principal
PS mold draft should take the upper limit; conservative demolding design is advisable for brittle materials.; after confirming effectiveness, fix the parameters and practices into the work instruction to prevent recurrence
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