Blow Molding
7 조회수
Uneven bottom of blow molded containers
문제 현상
The bottom of blow molded containers is uneven, warped and deformed, affecting container upright stability
원인 분석
Insufficient bottom cooling
Uneven mold temperature, bottom too high
Uneven blowing pressure distribution, insufficient bottom stretching
Parison bottom too thick, shrinkage difference
Bottom temperature too high at demolding
해결 방법
Strengthen bottom cooling
Reduce bottom mold temperature
Adjust blowing pressure distribution
Control parison bottom wall thickness
Ensure demolding after the bottom is completely cooled
핵심 요약
Bottom warpage needs strengthened cooling and wall thickness control
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