Processing Machinery
3 조회수
LLDPE thickness band
문제 현상
Transverse thick-thin bands in LLDPE film
원인 분석
Die lip gap deviation or airflow fluctuation; when troubleshooting on site, verify item by item according to this mechanism to avoid blindly adjusting the machine based only on experience; this mechanism has been repeatedly verified by industry data and should be confirmed first during troubleshooting
해결 방법
Fine die lip adjustment; automatic air ring; thickness scanning; 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
Thick-thin bands rely on die lip and automatic air ring; after confirming effectiveness, fix the parameters and practices into the work instruction to prevent recurrence; include this case in the defect archive as a reference for troubleshooting similar problems in the future
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