Material Drying
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HDPE small batch drying
Problem Phenomenon
Whether laboratory HDPE samples need drying
Cause Analysis
Only when the state of the small-test material is consistent with mass production is it comparable; 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
Same standard for small test and mass production: new material exempted from drying, recycled material dried; record the material state; 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
Align the small-test material state with mass production; 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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