Molds & Tooling
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EAA angle deviation
Problem Phenomenon
EAA product angle deviation >1° exceeding ±0.5° tolerance
Cause Analysis
Uneven shrinkage causing angle change; mold angle design did not consider EAA shrinkage compensation; product deformation during demolding
Solution
1) Pre-compensate mold angle for EAA shrinkage rate; 2) Extend cooling time to ensure setting before demolding; 3) Uniform cooling to reduce shrinkage difference
Key Takeaway
Angle deviation is caused by shrinkage and insufficient design compensation; pre-compensation is key
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