Processing Machinery
4 görüntüleme
PMMA Thermocouple Calibration
Sorun Belirtisi
Multiple machines produce lenses with the same parameters, but the optical quality differs
Neden Analizi
Thermocouple deviations cause the actual melt temperature to differ, and PMMA is sensitive to temperature; during on-site troubleshooting, 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 literature and should be confirmed first during troubleshooting
Çözüm
Calibrate thermocouples regularly; replace when deviation exceeds ±3℃; base the process on actual measurements; after adjustment, take samples continuously 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
Temel Çıkarım
Unified temperature measurement is the prerequisite for consistency of optical parts; after confirming effectiveness, solidify 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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