Material Drying
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PC drying equipment selection
Problem Phenomenon
【Problem Phenomenon】Ordinary hot air oven drying of PC has fluctuating effect
Cause Analysis
PC moisture content requirement is strict (0.02%), dehumidifying dryer with stable dew point can guarantee the endpoint; hot air ovens are greatly affected by the environment；During on-site troubleshooting, verify item by item according to this mechanism, and avoid blindly adjusting the machine based solely on experience
Solution
Equip dehumidifying dryer with dew point -40℃; hot air oven only for low-requirement parts; rainy season intensified sampling；After adjustment, take continuous samples to verify the effect, and resume mass production only after confirming stability
Key Takeaway
PC drying needs a dehumidifying dryer as the backstop, hot air ovens are unreliable；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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