Processing Machinery
3 조회수
PBT material changeover cleaning
문제 현상
Contamination problems after material changeover.
원인 분석
Incomplete cleaning leaves residual old material; PBT has limited compatibility with other polyesters.; when troubleshooting on site, 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 data and should be confirmed first when troubleshooting
해결 방법
①Thorough cleaning; ②standardize the process; ③verify the first piece; ④record material changeover.; 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
Material changeover cleaning is the key to contamination prevention.; after confirming effectiveness, solidify the parameters and practices into the work instruction to prevent recurrence; include this case in the defect archive as a troubleshooting reference for similar problems in the future
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