한국금형공학회:학술대회논문집
- 한국금형공학회 2008년도 하계 학술대회
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- Pages.155-158
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- 2008
다수 캐비티 사출금형에서 충전 불균형 원인 분석 및 스크류 런너 디자인
A study on coupling effect during lifting
- Kang, Min-A (The Graduate School of Industry and Engineering, Seoul National Univ. of Technology) ;
- Kim, Hae-Yeon (The Graduate School of Industry and Engineering, Seoul National Univ. of Technology) ;
- Lyu, Min-Young (The Graduate School of Industry and Engineering, Seoul National Univ. of Technology)
- 발행 : 2008.06.24
초록
Flow imbalance among the cavities was often observed in multi-cavity mold. The flow imbalance affects on the dimensions and physical properties of molded articles. First of all, the origin of flow imbalance is geometrical imbalance of delivery system. However, even the geometry of delivery system is balanced the cavity imbalance is being developed. This comes from the temperature distribution in the cross-section of runner, which is affected by the operational conditions. In this study, experimental study of flow imbalance has been conducted for various injection speeds. This study also suggests new runner design to eliminate flow imbalance in multi-cavity injection mold. Simulation and experimental results showed suggested new designed runner could eliminate or reduce flow imbalance in multi-cavity injection mold.
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