Material Drying
4 görüntüleme
PET sealed conveying
Sorun Belirtisi
The central feeding system delivers dried PET to the machine, and then the moisture content rebounds
Neden Analizi
The conveying uses ordinary compressed air carrying moisture, and the dried chips re-absorb moisture in the conveying pipeline; during on-site troubleshooting, verify item by item according to this mechanism, and avoid blindly adjusting the machine based only on experience
Çözüm
Switch to closed-loop dry air conveying; insulate the pipeline to prevent condensation; use a small hopper at the machine to reduce retention; after adjustment, take consecutive samples to verify the effect, and resume mass production only after confirming stability; change only one variable at a time and record the parameter changes, so as to locate effective measures
Temel Çıkarım
The conveying medium for dried material must be dry air; 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 subsequent similar problems
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