Material Drying
3 Aufrufe
Bubbles at LDPE Blow Molded Bottle Mouth
Problembeschreibung
Bubbles and material shortage at the bottle mouth cut.
Ursachenanalyse
The parison contains air or gas is sealed when material is trapped at the cut; raw material contains moisture and back pressure is insufficient.
Lösung
①Dry the raw material; ②increase back pressure; ③check the cutting mold; ④reduce extrusion pressure.
Wichtigste Erkenntnis
For bottle mouth bubbles, check moisture content and the cut.
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