利用可视化注塑模具和高速摄像机对注塑成型过程中熔体在型腔内的充填不平衡现象进行了动态观察,探讨了尺寸效应对熔体充填型腔速率及充填平衡性的影响。实验结果表明,熔体的充填平衡性与型腔的厚度有关,根据实验结果可以较好地描述熔体注射成型过程中充填不平衡现象的产生规律,为薄壁及微细尺寸下的精密注射成型技术的发展提供实验依据。
In this paper,visual injection mold and high speed camera were applied to observe the dynamic filling imbalance phenomenon of melt during injection molding process.The impact of scale effect on melt-filling rate and filling imbalance in the multi-cavity were also studied.It is indicated that the filling balance of melt in the cavity is related with the cavity thickness.The experiment results can be used to describe the law of filling imbalance phenomenon during injection molding process and to provide experimental evidence for precise injection molding technology under microscale.
参考文献
| [1] | 姜开宇,横井秀俊.注射成型过程熔体前沿充填不平衡现象的试验研究[J].机械工程学报,2009(02):294-300. |
| [2] | Han X;Yokoi H .Visualization analysis of the filling behavior of melt into microscale V-grooves during the filling stage of injection molding[J].Polymer engineering and science,2006(11):1590-1597. |
| [3] | H. Yokoi;N. Masuda;H. Mitsuhata .Visualization analysis of flow front behavior during filling process of injection mold cavity by two-axis tracking system[J].Journal of Materials Processing Technology,2002(0):328-333. |
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