Injection Molding
12 görüntüleme
Radial Cracks in the Gate Area of PBT Injection-Molded Parts
Sorun Belirtisi
Radial fine cracks appear around the gate of the product.
Neden Analizi
The holding pressure is too high or the holding is excessive, causing internal stress cracks in the gate area; the temperature gradient at the gate is too large, causing thermal stress.
Çözüm
Reduce the holding pressure; delay gate freezing to facilitate stress relaxation; reduce the mold temperature gradient in this area.
Temel Çıkarım
PBT gate area cracks are related to excessive holding.
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