Material Drying
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PBT Matte Surface Poor Gloss
Problembeschreibung
The product surface is matte with poor gloss, and the spray-free appearance part does not meet the standard
Ursachenanalyse
PBT has excellent surface gloss performance and is suitable for spray-free applications; but too low mold temperature, insufficient resin temperature, and poor mold surface condition will cause a matte surface; spots from insufficient drying also affect gloss
Lösung
①Increase mold temperature and resin temperature; ②Polish the mold cavity; ③Fully dry the material to prevent spots; after adjustment, take samples continuously to verify the effect, and resume mass production only after confirming stability
Wichtigste Erkenntnis
PBT's spray-free advantage needs to be delivered by the process; the three elements of temperature, polishing, and drying determine surface gloss; after confirming effectiveness, solidify the parameters and practices into the work instruction to prevent recurrence
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