Material Drying
5 views
PC drying temperature 120℃ upper limit
Problem Phenomenon
【Problem Phenomenon】Raising drying temperature for speed, PC pellets instead agglomerate and discolor
Cause Analysis
PC drying temperature 120℃ is appropriate; above 120℃ pellets soften and stick and thermally oxidize and discolor; temperature and time must be balanced, not the higher the faster；During on-site troubleshooting, verify item by item according to this mechanism, and avoid blindly adjusting the machine based solely on experience
Solution
Drying temperature controlled at 110-120℃; time 3-4h; agglomerated material screened out, discolored material downgraded；After adjustment, take continuous samples to verify the effect, and resume mass production only after confirming stability
Key Takeaway
PC drying 120℃ is the upper limit, agglomeration and discoloration are overtemperature signals；After confirming effectiveness, solidify the parameters and practices into the work instruction to prevent recurrence；Include this case in the defect archive as a reference for troubleshooting similar problems in the future
Was this helpful?
0 people found this helpful
Thank you for your feedback!