Injection Molding
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POE '2079851475616104452 warpage deformation
Problem Phenomenon
POE injection molded product warps 2-3mm/100mm after demolding, flatness does not meet standard
Cause Analysis
POE shrinkage is large and mold temperature is uneven, causing anisotropic shrinkage differences; improper gate position, flow orientation stress is released unevenly; cooling time insufficient
Solution
1) Raise mold temperature to 40-60°C to reduce temperature difference; 2) Increase holding pressure 50-70MPa; 3) Optimize gate position for uniform flow; 4) Extend cooling time; 5) Annealing treatment to release residual stress
Key Takeaway
Warpage is caused by shrinkage difference and orientation stress; uniform mold temperature and holding pressure are key
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