Injection Molding
11 조회수
Loosening of Nut Inserts During PBT '2079851475616104452
문제 현상
The overmolded nut inserts loosen or fall off after '2079851475616104452.
원인 분석
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.
해결 방법
Fully preheat the inserts to 100-150°C; design the inserts with anti-rotation knurling or slotting; optimize the cooling rate.
핵심 요약
PBT overmolding of inserts requires full preheating and anti-rotation design.
이 정보가 도움이 되었나요?
0 명이 도움이 되었다고 합니다
의견 주셔서 감사합니다!