Processing Machinery
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PLA product dimensional stability
Problem Phenomenon
Dimensions change over time.
Cause Analysis
PLA crystallization continues; environmental temperature and humidity effects.; 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 data and should be confirmed first during troubleshooting
Solution
① Test after aging; ② increase initial crystallinity; ③ control the environment; ④ reserve allowance.; after adjustment, continuously sample to verify the effect, and resume mass production only after confirming stability
Key Takeaway
Dimensional stability relies on crystallization management.; after confirming effectiveness, fix 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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