Molds & Tooling
2 views
POM Mold Deposit
Problem Phenomenon
After POM molding for a period, fouling accumulates on the mold surface and part surfaces get scratched
Cause Analysis
Trace degradation products and additives of POM separate out and deposit on the mold surface, transferring to parts after accumulation; during on-site troubleshooting, verify item by item according to this mechanism, and avoid blindly adjusting the machine based only on experience
Solution
Clean the mold surface regularly; melt temperature not exceeding 210℃; select low-exudation grades; after adjustment, take continuous samples to verify the effect, and resume mass production only after confirming stability; change only one variable at a time and record parameter changes to facilitate locating effective measures
Key Takeaway
Mold deposit is a signal of degradation and exudation—manage with temperature control plus cleaning; 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 subsequent similar problems
Was this helpful?
0 people found this helpful
Thank you for your feedback!