Injection Molding
9 views
Incomplete Cleaning of PBT '2079851475616104452 Machine Barrel
Problem Phenomenon
Cross-contamination occurs when switching from PBT to other materials or from other materials to PBT.
Cause Analysis
PBT is incompatible with other resins, and mixing produces phase separation; the residual material degrades and affects the quality of the new material.
Solution
Use a special purging material for full cleaning; clean with staged temperatures; disassemble the nozzle to clean dead corners.
Key Takeaway
PBT switching requires a strict cleaning procedure.
Was this helpful?
0 people found this helpful
Thank you for your feedback!