Proceedings of the Korean Society for Technology of Plasticity Conference (한국소성가공학회:학술대회논문집)
- 2005.09a
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- Pages.132-140
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- 2005
An experimental study for the filling balance of the family mold
Family 금형의 충전 밸런스를 위한 실험적 연구
- Published : 2005.09.01
Abstract
It is well known that the family-mold has an advantage to reduce the cost for production and mold. However, defects are frequently occurred by over packing the smaller volume cavity during molding, especially whorl the family-mold has a volumetric difference between two cavities. In this study, we confirmed the cavity-filling imbalance by the temperature and the pressure sensors, and developed a variable-runner system for the cavity-filling balance. We carried out experiments fur balancing the cavity filling in the family-mold with the variable-runner system, and confirmed a balanced cavity-filing through analyzing the temperature and pressure change in each cavity as the cross-sectional area of the runner changed. We also examined the influence of the injection-speed to the balancing-capability of the variable-runner system in the experiment.
Keywords
- Family mold;
- Filling Balance;
- Variable Runner;
- Cavity Pressure Sensor;
- Cavity Temperature Sensor;
- Closed Loop Control;
- Injection speed