Molds & Tooling
8 görüntüleme
Uneven PET chemical foaming
Sorun Belirtisi
The cell size of PET foamed products is uneven, density distribution is inconsistent, and there is local collapse.
Neden Analizi
Blowing agent dispersion is uneven; foaming temperature is improperly controlled; mold temperature distribution is uneven; pressure release rates are inconsistent.
Çözüm
Add blowing agent masterbatch by side feeding to ensure uniform dispersion; precisely control temperature; optimize mold temperature uniformity; use in-mold counter-pressure technology.
Temel Çıkarım
PET chemical foaming uniformity involves multiple aspects: blowing agent dispersion, temperature control and pressure management.
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