Molds & Tooling
3 조회수
PEI Warpage Deformation
문제 현상
PEI products warp after demolding, flatness is out of tolerance, and deformation directions are inconsistent in areas with uneven mold temperature.
원인 분석
Unbalanced PEI cooling system causes shrinkage differences; poor mold temperature uniformity (temperature difference should be ≤10℃); high Tg material freezes stress quickly; wall thickness differences aggravate deformation.
해결 방법
①Optimize the cooling system to ensure uniform mold temperature with temperature difference ≤10℃; ②balanced water circuit design; ③wall thickness consistency design; ④holding pressure curve optimization.; after adjustment, continuously sample to verify the effect, and resume mass production after confirming stability
핵심 요약
The 10℃ mold temperature difference in PEI warpage control is a quantitative standard; uniformity takes priority over absolute temperature; design and process are equally important.; after confirming effectiveness, fix the parameters and practices into the work instruction to prevent recurrence
이 정보가 도움이 되었나요?
0 명이 도움이 되었다고 합니다
의견 주셔서 감사합니다!