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  • 學位論文

含兩件相異塑膠製品之家族模穴成形流動平衡改善研究

Study on the Flow Balance Improvement of Two-cavity Family Mold

指導教授 : 韓麗龍
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摘要


一模兩穴相異成形品(又稱為1加1模穴)在塑膠射出成型作業時,首先遇到的問題就是熔膠流動不平衡。若熔膠在充填階段無法達到流動平衡,就會造成塑膠成形品內部的壓力分佈不均,甚至發生短射(Short Shot)情形。本研究使用Moldex3D CAE軟體,針對一模兩穴的空氣濾清器(Air Cleaning Filter)之本體(零件A)與上蓋(零件B)作流動平衡分析。流道設計採用H型熱流板(H-type Manifold),A模穴的澆口數目為6個(熱澆道( Hot Runner )+冷流道),B模穴的澆口數目為2個(熱澆道直接進料)。經由模具優化流道尺寸與澆口大小的設計,及田口實驗方法及變異數分析,規劃射出成形參數得因子與水準,探討成形參數對流動平衡的影響。結果顯示當A件的冷流道尺寸為直徑10 mm,澆口尺寸為直徑3 mm,B件的澆口尺寸為直徑2.5 mm,可獲得最佳的熔膠流動平衡。

並列摘要


Two-cavity of different moldings (also known as a plus one mold cavity) in the plastic injection molding operation, the first problem is that the melt flow imbalance. If the melt flow during the filling phase equilibrium can not be achieved, it will cause the pressure inside the plastic molded unevenly distributed, and even short shot (short shot) situation. Moldex3D CAE software used in this study, two points for a mold air cleaner (air cleaning filter) of the body (Part A) and cover (Part B) as current balance analysis. H-shaped flow channel design using heat plate (H-type manifold), A gate cavity number 6 (hot runner + cold runner), B gate cavity number 2 (hot runner direct feed). Optimized flow channel through the mold gate size and the size of the design, and the Taguchi method and variance analysis, planning and injection molding parameters have to factor levels to explore forming parameters on the flow balance. The results showed that when A piece of cold runner diameter is 10 mm, gate size diameter 3 mm, B piece gate size diameter 2.5 mm, the melt flow for optimum balance.

參考文獻


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被引用紀錄


蔡維庭(2014)。血壓計上蓋與外殼一模兩穴之流動平衡分析〔碩士論文,國立臺北科技大學〕。華藝線上圖書館。https://www.airitilibrary.com/Article/Detail?DocID=U0006-1408201410292400

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