Processing Machinery
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HDPE storage management
Problem Phenomenon
Bubbles appear during processing after HDPE pellets are stored open
Cause Analysis
Surface-attached water accumulates, especially in powder and recycled material; when troubleshooting on site, 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
Store pellets sealed; dry recycled material; first in first out; 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
HDPE storage: sealed, first in first out; 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 future problems
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