Processing Machinery
6 مشاهدة
LDPE Film Die Head Pressure Monitoring
ظاهرة المشكلة
Bubble instability occurs frequently; after installing a die head pressure sensor, real-time early warning is achieved.
تحليل الأسباب
Abnormal die pressure fluctuation appears before bubble instability; screen clogging and melt temperature changes are first reflected on the pressure curve.; During on-site troubleshooting, verify item by item according to this mechanism, and avoid blindly adjusting the machine based only on experience.
الحل
①Install a pressure sensor on the die head for real-time monitoring; ②Set pressure fluctuation alarm limits; ③When pressure is abnormal, check the mold, screen, and melt pump; ④Record the pressure trend.; After adjustment, continuously sample to verify the effect, and resume mass production only after confirming stability.
الخلاصة الأساسية
Pressure monitoring is an effective tool for preventive maintenance; trend management saves more cost than after-the-fact handling.; After confirming effectiveness, solidify the parameters and practices into the work instruction to prevent recurrence
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