Material Drying
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Excessive regrind addition affects product quality and stability
Problem Phenomenon
Excessive regrind addition affects product quality and stability
Cause Analysis
Regrind ratio too high (>20%), degradation accumulation, performance decline
Regrind used multiple times, severe degradation
Uneven mixing of regrind and virgin material
Regrind moisture content higher than virgin material
Foreign materials mixed into regrind
Solution
Limit the regrind ratio ≤15%
Regrind used at most 2 times
Fully mix regrind and virgin material
Regrind needs separate drying
Strictly separate regrind of different materials
Key Takeaway
Regrind requires ratio control and drying
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