Blow Molding
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HDPE '2079851475616104457 container excessive shrinkage
Fenómeno do problema
HDPE bottles/drums shrink excessively after demolding, and the volume or assembly dimensions are out of tolerance.
Análise das causas
Excessive wall thickness/weight, high mold temperature, high melt temperature, low blowing pressure, short blowing time, and high storage environment temperature all amplify shrinkage.
Solução
①Lower the melt and mold temperatures; ②increase blowing pressure and extend blowing time; ③verify the mold volume; ④store products away from high-temperature environments; ⑤select a lower-density grade if necessary.
Conclusão principal
HDPE '2079851475616104457 shrinkage = temperature and blowing energy management.
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