Molding Process
2 views
HDPE pipe sizing sleeve buildup
Problem Phenomenon
Material accumulates at the sizing sleeve inlet, and the pipe surface is scratched.
Cause Analysis
Volatiles or low molecular substances in the melt condense and accumulate at the sizing sleeve inlet; high melt temperature aggravates volatilization.
Solution
①Regularly clean the sizing sleeve; ②appropriately lower the melt temperature; ③check raw material quality; ④polish the sizing sleeve inlet.
Key Takeaway
Sizing sleeve buildup = volatile condensation; lower the temperature and clean frequently.
Was this helpful?
0 people found this helpful
Thank you for your feedback!