Molds & Tooling
4 조회수
Scratches on PET preforms during conveying
문제 현상
PET preforms collide and rub against each other on the conveyor belt, producing scratches and whitening on the surface.
원인 분석
Preform demolding temperature is on the high side and surface hardness is insufficient; conveyor belt speed is too fast, causing collisions; buffer design is improper.
해결 방법
Reduce demolding temperature and extend cooling time; reduce conveyor belt speed and add spacing devices; use soft material contact surfaces.
핵심 요약
PET preform scratching is a common problem in the post-processing stage.
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