Injection Molding
12 görüntüleme
Loosening of Nut Inserts During PBT '2079851475616104452
Sorun Belirtisi
The overmolded nut inserts loosen or fall off after '2079851475616104452.
Neden Analizi
The inserts are insufficiently preheated, and PBT shrinks too much during cooling, so the wrapping is not tight; the insert surface has no anti-rotation structure.
Çözüm
Fully preheat the inserts to 100-150°C; design the inserts with anti-rotation knurling or slotting; optimize the cooling rate.
Temel Çıkarım
PBT overmolding of inserts requires full preheating and anti-rotation design.
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