Molds & Tooling
4 조회수
EVA length out of tolerance
문제 현상
EVA product length deviation >±0.5mm exceeds tolerance
원인 분석
EVA shrinkage rate unstable, fluctuating ±0.5%; mold dimension design did not consider shrinkage compensation; insufficient cooling with dimensions not stabilized
해결 방법
1) Accurately measure EVA shrinkage rate and compensate the mold; 2) Sufficient cooling to ensure dimensional stability; 3) Annealing treatment to eliminate post-shrinkage
핵심 요약
Length out of tolerance is caused by unstable shrinkage rate; precise shrinkage compensation is key
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