Processing Machinery
5 조회수
TPU Screw Slipping
문제 현상
TPU screw slips during plasticization and does not feed material
원인 분석
TPU melt has strong lubricity, and the material slips in the screw channel resulting in poor plasticization; 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 literature and should be confirmed first during troubleshooting
해결 방법
Screw designed with mixing; back pressure appropriately increased; feeding section temperature optimized; 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
Screw slipping relies on screw design and back pressure; 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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