Molds & Tooling
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EEA Length Out of Tolerance
Problem Phenomenon
EEA product length deviation >±0.5mm, exceeding tolerance
Cause Analysis
EEA shrinkage rate unstable, fluctuating ±0.5%; mold dimension design did not consider shrinkage compensation; insufficient cooling, dimensions not stabilized
Solution
1) Accurately measure EEA shrinkage rate and compensate the mold; 2) Fully cool to ensure dimensional stability; 3) Annealing treatment to eliminate post-shrinkage
Key Takeaway
Length out of tolerance is caused by unstable shrinkage rate; accurate shrinkage compensation is key
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