Material Drying
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ASA post-drying use time window
Problem Phenomenon
[Problem phenomenon] How long dried ASA can be stored and still usable has no clear standard
Cause Analysis
Dried material moisture absorption rate after air exposure relates to environmental humidity: generally recommended to use up within 2-4 hours; overtime must be re-dried or stored with heat preservation; during on-site investigation, verify item by item according to this mechanism, avoid blindly adjusting the machine based on experience alone
Solution
Dried material used up within the 2-4 hour window; overtime material re-dried; mass production dried in batches according to usage; after adjustment, continuously sample to verify the effect, and resume mass production after confirming stability
Key Takeaway
ASA dried material used up within 2-4 hours, overtime re-dried without taking chances; 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 subsequent similar problems
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