Material Drying
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ASA drying specification
Problem Phenomenon
ASA drying 80-85°C × 2-4 hours, differences between circulating oven and hopper.
Cause Analysis
ASA drying 80-85°C × 2-4 hours; hopper dryer temperature can be raised to 90°C to ensure sufficient drying; circulating air oven 80-85°C × 2 hours; moisture content control; sealed storage.
Solution
①Drying 80-85°C × 2-4 hours; ②hopper can be 90°C; ③oven 80-85°C × 2 hours; ④moisture content verification; ⑤sealed storage.
Key Takeaway
ASA drying 80-85°C and 2-4 hours is the standard; equipment differences must be managed; verification ensures quality.; After confirming effectiveness, solidify the parameters and practices into the work instruction to prevent recurrence
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