Extrusion & Post
8 views
POM annealing temperature
Problem Phenomenon
POM precision parts are out of tolerance after annealing instead
Cause Analysis
Too high annealing temperature causes recrystallization, while too low results in insufficient stress relief; during on-site troubleshooting, verify item by item according to this mechanism, and avoid blindly adjusting the machine based only on experience; this mechanism has been repeatedly verified by industry data and should be confirmed first during troubleshooting
Solution
Control annealing at 100-130°C×2-4 hours; cool slowly after annealing; re-measure dimensions after annealing; after adjustment, take continuous samples to verify the effect, and resume mass production only after confirming stability
Key Takeaway
Annealing temperature and time are executed according to the specification, and re-measurement is mandatory after annealing; after confirming effectiveness, fix 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!