Material Drying
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PA6 Small-Batch Oven Drying
Problem Phenomenon
Laboratory small-batch trial production has no dehumidifying dryer, and the hot-air oven drying effect is unstable
Cause Analysis
The drying capacity of a hot-air oven is greatly affected by ambient humidity, and small-batch materials are piled with uneven thickness, resulting in poor drying uniformity and poor repeatability of trial production results; when troubleshooting on site, verify item by item according to this mechanism, and avoid blindly adjusting the machine based only on experience
Solution
Small batches can use a vacuum oven instead: 80°C, -0.09MPa, 4 hours; the material layer thickness does not exceed 30mm and is turned midway; the trial production record notes the drying conditions to ensure repeatability
Key Takeaway
Small-batch drying uses a vacuum oven plus thin-layer spreading, and condition records ensure trial production repeatability; after confirming effectiveness, fix the parameters and practices into the work instructions to prevent recurrence
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