Molds & Tooling
1 views
Jump Heating Between Barrel Zones of PEEK
Problem Phenomenon
[Problem Phenomenon] The PEEK barrel temperature settings jump too much between zones, plasticization is uneven, and the melt temperature is scattered
Cause Analysis
PEEK requires progressive heating from 330-360℃ in the rear zone to 370-400℃ in the front zone; zone jumping causes local overheating or insufficient plasticization; CKMold gives a zone reference of rear 320-380/middle 330-390/front 340-400/nozzle 350-410℃
Solution
Set each zone temperature progressively from low at the rear to high at the front, with a gentle gradient between zones; calibrate the set values with actually measured melt temperature; check heater band and thermocouple condition when fluctuation is large; after adjustment, continuously sample to verify the effect, and resume mass production only after confirming stability
Key Takeaway
PEEK barrel heating must be progressive and gentle — the actually measured melt temperature is the final judge; after confirming effectiveness, solidify the parameters and practices into the work instruction to prevent recurrence; include this case in the defect archive as a troubleshooting reference for similar problems in the future
Was this helpful?
0 people found this helpful
Thank you for your feedback!