Extrusion & Post
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Fast Pressure Differential Rise of LDPE Extrusion Filter Screen
Fenómeno del problema
Frequent screen changes.
Análisis de la causa
LDPE easily oxidizes into gels, and cross-linked matter intercepted by the screen accumulates; regrind has many impurities.
Solución
①Standardize shutdown to prevent gels; ②control regrind; ③screen gradient configuration; ④automatic screen changer.
Conclusión clave
Fast pressure differential rise = dual sources of gel + impurities.
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