Processing Machinery
2 views
EVA Foaming Coarse Cells
Problem Phenomenon
The cells of foamed products are coarse and uneven, with a hard feel and poor elasticity.
Cause Analysis
Poor dispersion or local excess of the foaming agent causes the cells to merge and grow; uneven mixing and temperature loss of control also cause abnormal cell structure.; During on-site troubleshooting, verify item by item according to this mechanism to avoid blindly adjusting the machine based only on experience
Solution
①Optimize the mixing process to ensure foaming agent dispersion; ②control the foaming agent addition accuracy; ③stabilize the foaming temperature; ④inspect the cell structure.; After adjustment, continuously sample to verify the effect, and resume mass production after confirming stability
Key Takeaway
The cell structure determines the foot feel and performance of foamed products; dispersion uniformity is the premise of cell quality.; After confirming effectiveness, fix the parameters and practices into the work instruction to prevent recurrence
Was this helpful?
0 people found this helpful
Thank you for your feedback!