Injection Molding
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Orange peel on the surface of PP products
Fenómeno del problema
The product surface is microscopically uneven like orange peel, with dull gloss.
Análisis de la causa
Low mold temperature causes poor melt replication; low injection speed and front cooling also form orange peel.; during on-site investigation, verify item by item according to this mechanism to avoid blindly adjusting the machine based only on experience
Solución
①Increase the mold temperature; ②increase the injection speed; ③improve cavity polishing; ④appropriately increase the melt temperature.; after adjustment, continuously sample and verify the effect, and resume mass production after confirming stability
Conclusión clave
Orange peel is a manifestation of poor replication; increasing temperature and speed to improve replication ability can improve it.; after confirming effectiveness, solidify the parameters and practices into the work instruction to prevent recurrence
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