Injection Molding
2 views
EVA '2079851475616104452 shrinkage rate management
Problem Phenomenon
The dimensional deviation of EVA products is large.
Cause Analysis
The shrinkage rate of EVA varies with VA content and foaming tendency; process fluctuations amplify dimensional deviation.; during on-site troubleshooting, verify item by item according to this mechanism, and avoid blindly adjusting the machine based on experience alone
Solution
①Design the mold based on measured shrinkage rate; ②stabilize the '2079851475616104453; ③control material batches; ④test after aging.; after adjustment, take consecutive samples to verify the effect, and resume mass production only after confirming stability
Key Takeaway
EVA dimensional management starts with the measured shrinkage rate; batch consistency is the foundation of stability.; 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!