Processing Machinery
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TPU Thermocouple Calibration
Problem Phenomenon
Multiple machines with the same parameters produce different quality
Cause Analysis
Thermocouple deviation makes actual temperatures different; 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
Solution
Regular thermocouple calibration; replace when deviation exceeds ±3°C; 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
Key Takeaway
Unified temperature measurement is the prerequisite for multi-machine consistency; 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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