- 學位論文
電腦輔助工程應用於雙色射出成型製程之研究
The Study of Two-Component Injection Molding Process by Applications of Computer-Aided Engineering
摘要
摘要 隨著時代進步，產品設計越來越個性化，很多產品會用雙色或多色顏料來美化外觀，常用的如手機、電子錶等都會用上雙色材料，這就對模具設計提供多一種思路，雙色模具在生產上亦廣泛波應用，現在有一部分廠用雙色射出機注塑產品。 近年來學界與業界為了提升產業競爭力，紛紛投入精密射出成型的研究；在注塑過程中，射出成型之製程參數眾多，如：壓力、溫度、時間及塑件外形等，對塑膠熔體的流動性均有影響，因此使用CAE模流分析軟體，對產品做製程模擬，以幫助工程師瞭解產品設計、模具設計及成型製程內部的奧秘，找出合適的參數與材料，達到節省研發時間與成本，並達到快速設計的目的。 本文以音響面板雙色塑膠產品設計意念進行研究。首先，利用Pro/E軟體依照音響面板實際雙色塑膠產品外型，在考慮不同控制因數，建構Moldflow模流分析模式。其次，依音響面板實際雙色塑膠產品，我們選擇耐衝擊性相當高，優異的透明性，成型後尺寸穩定性高，無毒性等特性之聚碳酸脂(PC)與聚碳酸酯/丙烯睛-丁二烯-苯乙烯(PC/ABS)工程塑膠。再應用田口實驗法配合Moldflow軟體模擬模流分析尋求出製程條件的最佳化參數組合。雙色音響面板一次成品模具溫度建議溫度100℃，熔膠溫度建議溫度320℃，充填出時間建議1.1sec；雙色音響面板二次成品模具溫度建議溫度80℃，熔膠溫度建議溫度270℃，充填出時間則建議0.9sec。並經雙色音響面板實例驗證，改進以往經驗傳承與試誤的舊程序，以符合經濟效益。
並列摘要
Abstract Product design becomes more personalized as the time advanced, it should be designed pretty appearance by using various colors such as cell phones, electric watches etc. For the sake of it, we provide several varieties tooling designs in injection process; two-component tooling is widely used in the production by many injection factories now. In order to have more competitive advantages, the academy and industry are indulged in the researches of exact injection process in recent years. There are many different parameters related about fluidity of plastic-melted parts in each kind of injection process, such as pressure, temperature, time etc. Engineers should research the real parameters about the injection process by CAE moldflow analysis software to develop the fine goods rapidly. If so, the cost and time-elapsed will be dramatically reduced. This study is a research of the design for audio two-component plastic panel. Firstly, referring the two-component plastic product of audio two-component panel, we build and construct 3D designs by using computer-aided design software Pro/Engineer, then we construct mold flow analysis based on different controlled parameters. Secondly, referring the actual two-component plastic products of audio two-component panel, we choose the resin of Polycarbonate and Polycarbonate/ABS whose characteristics are good shock endurance, good transparency, high dimension stability after shaping, nonpoisonous property as our study object, then the optima parameters will be found by Taguchi method coordination and software of Moldflow in this study. The temperature of the first product of mold is suggested 100℃, the temperature of polymer melt is set by 320℃, the time of filling is 1.1 second. The temperature of the second product of mold is suggested 80℃, the temperature of polymer melt is set by 270℃, and the time of filling is 0.9 second. It is confirmed by checking examples of stereo faceplate with two-color injection method with the simulations from software, so the old try-and-error method could be replaced for the sake of profits and efficiency.
參考文獻
延伸閱讀
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