Molds & Tooling
2 views
CEF fatigue resistance poor
Problem Phenomenon
The fatigue life of the CEF product is <10⁴ cycles, lower than the 10⁵ cycles requirement
Cause Analysis
The elastic recovery of CEF is insufficient and plastic deformation accumulates in each cycle; the crosslinking degree is low and the fatigue crack propagates fast
Solution
1) Increase the crosslinking degree to improve recovery and reduce accumulated deformation; 2) Select high-molecular-weight grades to increase the fatigue threshold; 3) Product design to reduce stress concentration
Key Takeaway
Poor fatigue resistance is caused by insufficient recovery and fast crack propagation; increasing crosslinking is the key
Was this helpful?
0 people found this helpful
Thank you for your feedback!