Molds & Tooling
4 조회수
Eccentric wall thickness of PET preforms
문제 현상
PET preform wall thickness is uneven with obvious eccentricity, thick on one side and thin on the other.
원인 분석
The core and cavity are not concentric (insufficient mold machining precision or assembly deviation); runner design causes uneven melt flow around the core.
해결 방법
Improve mold machining and assembly precision (concentricity ≤0.02mm); optimize the runner for uniform circumferential distribution; appropriately reduce injection pressure.
핵심 요약
PET preform eccentricity directly affects bottle blowing quality; mold precision and filling balance are fundamental.
이 정보가 도움이 되었나요?
0 명이 도움이 되었다고 합니다
의견 주셔서 감사합니다!