Molds & Tooling
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LDPE Mold Temperature Effect on Shrinkage
문제 현상
For LDPE, the same mold at different mold temperatures gives different shrinkage rates.
원인 분석
Mold temperature affects crystallinity and shrinkage; During on-site troubleshooting, verify item by item according to this mechanism, and avoid blindly adjusting the machine based only on experience; This mechanism has been repeatedly verified by industry literature and should be confirmed first during troubleshooting.
해결 방법
Lock the mold temperature; measure first-piece shrinkage; standardize the process; After adjustment, continuously sample to verify the effect, and resume mass production only after confirming stability; Change only one variable at a time and record parameter changes to facilitate locating effective measures.
핵심 요약
Shrinkage consistency relies on mold temperature locking; After confirming effectiveness, solidify the parameters and practices into the work instruction to prevent recurrence; Incorporate this case into the defect archive as a troubleshooting reference for similar future problems.
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