Extrusion & Post
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PET Bottle Insufficient Top Load Strength
Problembeschreibung
Bottles deform after stacking, collapsed bottles.
Ursachenanalyse
Unreasonable wall thickness distribution (locally too thin), insufficient stretch orientation, excessive lightweight design; insufficient blowing pressure leads to insufficient orientation.
Lösung
①Optimize wall thickness distribution (lamp zone adjustment); ②ensure high-pressure blowing orientation; ③top load test monitoring; ④verify top load while lightweighting.
Wichtigste Erkenntnis
Lightweighting forces top load management.
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