Material Drying
4 조회수
Bubbles or voids appear inside the product
문제 현상
Bubbles or voids appear inside the product, especially obvious in transparent products, bubbles are round or irregularly shaped distributed in the thick wall center
원인 분석
High moisture content in raw material, vaporizing during injection
Insufficient holding pressure, thick wall center not compacted
Injection speed too fast, air entrained
Cooling time insufficient, product demolded before the interior solidified
Poor mold venting, cavity air entrained
해결 방법
Fully dry the raw material, moisture content ≤0.02%
Increase holding pressure and holding pressure time
Adjust injection speed to avoid being too fast
Extend cooling time to ensure complete solidification
Improve mold venting
핵심 요약
Bubbles/voids need to be addressed from drying, holding pressure, and venting
이 정보가 도움이 되었나요?
0 명이 도움이 되었다고 합니다
의견 주셔서 감사합니다!