Injection Molding
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Warpage of PMMA injection molded products
Problem Phenomenon
Flat products warp and deform after demolding.
Cause Analysis
Uneven cooling, uneven mold temperature distribution, uneven wall thickness, asymmetric molecular orientation.
Solution
Balance mold cooling; uniform wall thickness design; optimize gate position.
Key Takeaway
The root of PMMA warpage is uneven cooling.
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