Molding Process
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HDPE pipe sizing sleeve buildup
Problembeschreibung
Material accumulates at the sizing sleeve inlet, and the pipe surface is scratched.
Ursachenanalyse
Volatiles or low molecular substances in the melt condense and accumulate at the sizing sleeve inlet; high melt temperature aggravates volatilization.
Lösung
①Regularly clean the sizing sleeve; ②appropriately lower the melt temperature; ③check raw material quality; ④polish the sizing sleeve inlet.
Wichtigste Erkenntnis
Sizing sleeve buildup = volatile condensation; lower the temperature and clean frequently.
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