Molds & Tooling
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PMMA Mold Sticking
Problem Phenomenon
Products stick to the mold, pulled and scratched.
Cause Analysis
PMMA is rigid and brittle with high transparent surface requirements; insufficient draft angle, roughened polishing, high holding pressure.
Solution
①Draft angle 1.5°~3°; ②Cavity mirror polishing along the demolding direction; ③Reduce holding pressure; ④Gentle ejection.
Key Takeaway
Transparent part mold sticking = double damage to appearance and structure.
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