Processing Machinery
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TPU Melt Temperature Actual Measurement
Problem Phenomenon
With the same set temperature, product performance differs between batches
Cause Analysis
The actual melt temperature deviates from the setting, and TPU is sensitive to temperature; 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
Regularly measure the actual melt temperature; correct the setting based on actual measurement; record performance correlated with melt temperature; 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
TPU takes the actually measured melt temperature as the process benchmark; 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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