Molds & Tooling
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POM warpage
Problem Phenomenon
Products warp and deform.
Cause Analysis
High crystallization shrinkage + uneven mold temperature; improper holding pressure and large wall thickness differences.
Solution
①Balance mold temperature; ②adjust gate and holding pressure; ③uniform wall thickness; ④fully cool for shaping.
Key Takeaway
Warpage = a lesson in balancing crystallization shrinkage.
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