Material Drying
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TPE Startup Procedure
Problem Phenomenon
Bubbles appear in the first batch of products at startup after several days of shutdown
Cause Analysis
The material absorbs moisture during the shutdown; during on-site troubleshooting, verify item by item according to this mechanism, and avoid blindly adjusting the machine based solely on experience; this mechanism has been repeatedly verified by industry information and should be confirmed first during troubleshooting
Solution
Re-dry the material before startup; empty the barrel; first-piece inspection; 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
Restarting after shutdown first restores the material condition; 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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