應用實驗設計法於瓶胚射出成型製程參數最佳化之研究

The Study of Process Parameters Optimization in the Injection Molding of Blow Technology based on the Experimental Design method

賴家偉(Chia-Wei Lai)

指導教授 ： 林世章

國立虎尾科技大學/工程學院/機械與機電工程研究所/碩士(2014年)

https://doi.org/10.6827/NFU.2014.00053

摘要

在塑膠成型產業中，工程人員所設定的製程參數、環境條件大部分仍依賴於實務經驗及工程知識，雖然廣泛被業界所接受，但並不是最有效率取得製程參數的方式。因此，本文係利用田口設計法結合反應曲面法，提出瓶胚射出成型最佳化程序設計，除了可以有效率的找到最佳製程參數之外，也可分析各個製程參數對於瓶胚成型品質與產能的貢獻度。藉由本研究可提供給業界做為參考，相信可以更有效率的獲得製程所需的設計準則。
本研究首先使用要因分析篩選研究因子，結合田口設計法運用於模流分析所得到的數值，評估其影響產品品質特性的重要製程參數因子，並找出顯著因子與品質特性的關聯性。最後藉由反應曲面法再建立線性迴歸模型，來預測因子水準組合的最佳解。
由本文所提出的製程最佳化設計程序係利用田口設計法，先篩選出目標的顯著因子，從而降低研究的次數與成本，並且此設計程序可以方便工程人員，在設定之範圍內快速找出製程參數之貢獻度、趨勢與最佳解，藉此提供產業，建立一套標準優化作業程序的範本。

關鍵字

最佳製程參數設計 ； 模流分析 ； 田口設計法 ； 反應曲面法

並列摘要

The engineers highly relied on practical experience to set processes parameters in the plastic injection industry. It although was utilized in most cases, but it was difficult to obtain the optimum process parameters. Therefore, the study attempts to develop an optimization design procedure for injection molding of preform by integrating Taguchi analysis and response surface method. The proposed procedure not only helps engineers to find out the optimum process parameters, but also analyze the significant factors of PET preform forming quality.
Firstly, the cause & effect analysis was conducted to confirm the important factors, Taguchi method and moldflow analysis then were used to evaluate the most significant factors of PET preform forming. Afterward, the response surface method was conducted to search the optimal solution and establish linear regression models to predict the optimal solution effect.
The proposed procedure employed Taguchi method for obtaining the significant factors, which reduces the experiment of the number and cost. Meanwhile, the procedure can facilitate engineers find out quickly the optimum process parameters in the PET preform forming. It could serve as reference for industry, which establishes a standard operation procedure for optimum process design.

並列關鍵字

Optimization Processes Parameters Design ； Moldflow Analysis ； Taguchi Method ； Response Surface Method

參考文獻

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