Processing Machinery
6 조회수
LDPE Die Cleaning
문제 현상
LDPE die build-up causes streaks on the film surface.
원인 분석
Die lip build-up periodically falls off forming streaks; 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
Regular die cleaning; add PPA to reduce build-up; online monitoring; 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
Die build-up is managed by cleaning and PPA; 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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