Injection Molding
12 görüntüleme
Premature Gate Freezing in PBT '2079851475616104452
Sorun Belirtisi
The gate solidifies before the end of holding, and the shrinkage compensation channel is cut off, causing sink marks.
Neden Analizi
The gate size is too small or the mold temperature in the gate area is too low, causing PBT to crystallize and solidify rapidly.
Çözüm
Increase the gate diameter to ≥50% of the product wall thickness; increase the mold temperature in the gate area; delay the holding switchover.
Temel Çıkarım
Premature PBT gate freezing seriously affects the shrinkage compensation effect.
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