Molds & Tooling
3 조회수
PET Bottle Single Cavity Abnormality
문제 현상
In a four-cavity mold, only the bottles of one cavity show white haze, the rest are normal.
원인 분석
The cooling water channel of that cavity is blocked or the flow is insufficient, the mold temperature is high (e.g.
40℃), and the bottle body crystallizes due to uneven cooling after contacting the mold; or the blowing valve of that cavity is abnormal.
해결 방법
①Check the cooling water channel and flow of that cavity; ②control the mold temperature at 10~15℃; ③check the blowing valve and seal of that cavity; ④regular descaling of the water channel.
핵심 요약
Single cavity abnormality = the water channel or air channel of that cavity; do not touch the global parameters.
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