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