Material Drying
3 views
PA6 Product Delamination
Problem Phenomenon
Surface layered peeling, mostly occurring near the gate.
Cause Analysis
Material mixing contamination (such as mixing in PP/PE), excessive release agent, high moisture content; layers cannot fuse; during on-site troubleshooting, verify item by item according to this mechanism, and avoid blindly adjusting the machine based only on experience.
Solution
①Troubleshoot material mixing and contamination, and standardize the storage management of raw material and regrind;②thoroughly clean the machine to remove accumulated material in the dead corners of the barrel and hot runner;③control the amount of release agent to avoid forming an isolation layer on the surface;④strengthen raw '2079851475616104451 and verify that the moisture content meets the standard with moisture measurement;⑤check the compatibility of regrind with the base material.
Key Takeaway
PA6 delamination = 'contamination': mixing in incompatible material is the first cause; nylon is incompatible with other polyolefins, material mixing is a big taboo, and find the pollution source first; after confirming effectiveness, solidify the parameters and practices into the work instruction to prevent recurrence.
Was this helpful?
0 people found this helpful
Thank you for your feedback!