Material Drying
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PVB Raw Material Storage Moisture Absorption
Fenómeno do problema
PVB resin absorbs moisture due to improper storage, moisture already exceeds standards before processing, drying load increases.
Análise das causas
PVB resin is extremely hygroscopic; packaging sealing; storage environment humidity; post-opening management; first-in-first-out execution.; When troubleshooting on site, verify item by item according to this mechanism, avoiding blind machine adjustment based only on experience
Solução
①Sealed packaging storage; ②Environmental humidity control; ③Sealed management after opening; ④First-in-first-out with records.; After adjustment, continuously sample to verify the effect, confirm stability before resuming mass production
Conclusão principal
PVB storage moisture-proof management is the quality front end; sealing and humidity control are equally important; record traceability ensures execution.; After confirming effectiveness, fix the parameters and practices into the work instruction to prevent recurrence
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