Material Drying
5 görüntüleme
Process fluctuation caused by raw material batch differences of high impact polystyrene
Sorun Belirtisi
After changing the raw material batch, product quality fluctuates, and process parameters need to be adjusted.
Neden Analizi
(1) Different batches of raw material differ in molecular weight or molecular weight distribution
(2) Differences in raw material additive content or type
(3) Different raw material moisture content
(4) Different raw material particle size and shape
(5) Different raw material storage conditions and duration
Çözüm
(1) Conduct small-batch trial production first when changing batches
(2) Test the melt flow rate of the new batch of raw material
(3) Fine-tune process parameters according to raw material characteristics
(4) Consistent raw material storage conditions, first-in first-out
(5) Establish raw material inspection standards
Temel Çıkarım
Raw material batch differences need to be addressed through incoming inspection and process adjustment.
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