Molds & Tooling
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CEF length out of tolerance
Problem Phenomenon
The length deviation of the CEF product is >±0.5mm, exceeding the tolerance
Cause Analysis
The CEF shrinkage rate is unstable and fluctuates ±0.5%; the mold size design does not consider shrinkage compensation; the cooling is insufficient and the size is not stabilized
Solution
1) Accurately measure the CEF 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 the key
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