Injection Molding
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Warpage of PAR injection molded products
Problem Phenomenon
Flat injection molded parts warp after demolding.
Cause Analysis
Uneven mold temperature causes uneven shrinkage, the wall thickness design is uneven, and the molecular orientation is asymmetric.
Solution
Improve the mold temperature uniformity; uniform wall thickness; optimize the gate position.
Key Takeaway
PAR warpage is directly related to high mold temperature and uniformity.
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