Material Drying
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Bubbles at LDPE Blow Molded Bottle Mouth
Fenómeno del problema
Bubbles and material shortage at the bottle mouth cut.
Análisis de la causa
The parison contains air or gas is sealed when material is trapped at the cut; raw material contains moisture and back pressure is insufficient.
Solución
①Dry the raw material; ②increase back pressure; ③check the cutting mold; ④reduce extrusion pressure.
Conclusión clave
For bottle mouth bubbles, check moisture content and the cut.
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