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研究生： 梁晋恊
Liang, Jin-Chieh
論文名稱： 塑膠肋板射出成型之研究
The Study of Ribbed Plate Design by Injection Molding
指導教授： 吳俊煌
Wu, Gien-Huang
學位類別： 碩士
Master
系所名稱： 工學院 - 機械工程學系碩士在職專班
Department of Mechanical Engineering (on the job class)
論文出版年： 2006
畢業學年度： 94
語文別： 中文
論文頁數： 112
中文關鍵詞： 射出成型 、補強肋 、翹曲 、凹痕
外文關鍵詞： Rib, Injection molding, Sink marks, Warpage
相關次數： 點閱：132  下載：24 
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    • 　　本研究利用射出成型模流分析軟體來模擬肋板元件之成型過程。調整補強肋之圓角半徑和寬度等設計參數，並改變肋的數目，觀察各參數對成型品的翹曲變形(Warpage)及補強肋對成型品表面凹痕(Sink marks)的影響。
    　　經由模擬結果顯示，補強肋的寬度變化影響凹痕現象大於補強肋之圓角半徑變化；肋的數目越多，熱殘留應力(Thermally-induced residual stress)就愈大，故翹曲變形量因而增加。

    　This research are applied to simulate the plastic injection molding by using the commercial software Moldex3D, imitated the ribbed Plate component. Adjust such design parameters as the radius and width of round angle of the rib, change the figure of the rib, observe the warpage to the shaping product of every parameter out of shape and mend the strong rib to the sink marks of shaping product surface Influence.
    　The result shows via imitating, It influences the sink mark phenomenon and greater than the change of radius of round angle which mends the strong rib to mend the width change of the strong rib;To many figure have rib, thermally-induced residual stress to be right away heavy. So therefore the deformation amount of warpage increases.

    摘要 I ABSTRACT II 誌謝 III 目錄 IV 表目錄 VII 圖目錄 VIII 第一章 前言 1 1-1 背景 1 1-2 文獻回顧 5 1-3 研究目的 7 1-4 本文架構 8 第二章 射出成型之概念 10 2-1 補強肋之基本設計守則 10 2-1-1 不同材料的設計要點 15 2-2 射出成型過程 19 2-2-1 射出機規格 21 2-2-2 射出成型機之控制參數 24 2-3射出成型品之材料收縮變形因素[15] 26 2-3-1 結晶 27 2-3-2 非結晶 28 2-3-3 塑料結晶性的物性差異 29 2-3-4 收縮 29 2-3-5 翹曲 30 第三章 模流分析理論 36 3-1 充填階段數學模式 37 3-2 保壓階段數學模式 40 3-3 冷卻階段數學模式 41 3-4 熔膠黏度方程 45 3-5 狀態方程式 46 3-6 翹曲理論方程 48 第四章 模型建立與模擬分析 49 4-1 材料性質 49 4-1-1 黏度 50 4-1-2 比容 52 4-1-3 比熱 53 4-1-4 熱傳導係數 55 4-1-5 機械性質 56 4-1-6 加工條件內容 57 4-2 分析工具 58 4-3 分析程序與方法 58 第五章 結果與討論 90 5-1 圓角(Rib root Fillet Radius)對凹痕值的影響 90 5-2 材料溫度對凹痕的影響 91 5-3 補強肋設計之影響 93 5-4 補強肋於肋板上的影響 93 5-5 保壓壓力對翹曲的影響 103 5-6 射出成型條件之影響 105 第六章 結論與未來方向 107 參考文獻 108 附錄一 塑料之分類 111 自述 112

    [1]Robert A. Malloy.," Plastic part design for injection molding：an introduction," Munich；Hanser Publishers；New York, 1994.

    [2]Battey, David J.; Gupta. Mahesh.," Finite Element Prediction of Sink Marks in Injection Molded Plastic Parts," ASME Materials Division, Vol. 79, 335-350, 1997.

    [3]Jacques, st. Michael.," An analysis of thermal warpage in injection molded flat parts due to unbalanced cooling" polym. Eng. Sci., 22,4, 241-247,1982.

    [4]Cox, howard w.; mentzer, charles c., " Injection molding：the effect of fill time on properties" polym eng sci.,26,7,488-498,1986.

    [5]Tamma, K. K.; Dowler, B. L.; Railkar, S. B.," Computer aided applications to injection molding：Transfinite / finite element thermal / stress response formulations," Polym. Eng. Sci., 28, 7, 421-428, 1988.

    [6]Huilier, D.; Lenfant, C.; Terrisse, J.; Deterre, R.," Modeling the packing stage in injection molding of thermoplastics," Polym. Eng. Sci., 28,24, 1637-1643,1988.

    [7]Matsuoka, Takaaki; Takabatake, Jun-Ichi; Inoue, Yoshinori; Takahashi, Hideroh.," Prediction of fiber orientation in injection molded parts of short-fiber-reinforced thermoplastics," Polym. Eng. Sci., 30,16, 957-966, 1991.

    [8]Chiang, H. H.; Himasekhar, H.; Santhanam, N.; Wang, K. K." Integrated simulation of fluid floe and heat transfer in injection molding for the prediction of shrinkage and warpage," ASME, 1992.

    [9]林文欽," 熱殘留應力對射出成型品收縮影響的研究," 碩士論文,國立台灣大學,1994。

    [10]Chang, R.Y.; Tsaur, B.D.," Experimental and theoretical studies of shrinkage, warpage, and sink marks of crystalline polymer injection molded parts," Polym. Eng. Sci., 35,15, 1222-1230,1995.

    [11]陳俊宇," 射出成型塑件之熱應力分析," 碩士論文,國立成功大學,1999。

    [12]楊景安," 電子構裝元件之翹曲預測," 碩士論文,國立成功大學, 2001。

    [13]洪立群," IC封裝元件翹曲分析之研究,"博士論文,國立成功大學, 2004。

    [14]Dong, Binbin;Shen, Changyu; Li, Qian.," Affecting factors of shrinkage and warpage of thin-wall injection molding process," Huagong Xuebao/Journal of Chemical Industry and Engineering., 56 , 4 ,727-731, 2005.

    [15]C-MOLD Design Guide.

    [16]許明發、郭文雄, " 複合材料," 高立圖書股份有限公司, 2004.

    [17]張榮語," 射出成型模具設計－操作實務," 高立圖書股份有限公司,1995.

    [18]曹丙丁," 塑膠射出成形品收縮與翹曲變形之整合型理論研究,"國立清華大學化工所,博士論文,1994.

    [19]張榮語," 射出成型模具設計－模具設計,"高立圖書股份有限公司,1995.

    [20]Manzione, L. T.," Applications of computer aided engineering in injection molding," Hanser Publisher, New York, 1987.

    [21]詹世良," 模流分析對塑料射出成形之研究," 碩士論文,國立台灣科技大學機械工程系, 2004.

    [22]科盛科技," CAE模流分析技術入門與應用," 全華科技, 2002.

    [23]張榮語," 射出成型模具設計－材料特性," 高立圖書股份有限公司,1995.

    [24]Chiang, H. H.; Hieber, C.A. and Wang, K.K.," A Unified Simulation of the Filling and Postfllling Stages in Injection Molding. Part I: Formulation," Polym. Eng. Sci., 31, 116 ,1991.

    [25]Chiang, H. H.; Hieber, C.A. and Wang, K.K.," A Unified Simulation of the Filling and Postfllling Stages in Injection Molding. Part II: Experimental Verification," Polym. Eng. Sci., 31, 125,1991.

    [26]R. Simha, P. S. Wilson,；O. Olabisi.," Pressure-volume- temperature properties of amorphous polymers: empirical and theoretical predictions," Kolloid-Z. U. Z. Polymere, 251, 402, 1973.

    [27]V. S. Nanda,；robert simha.," Theoretical interpretation of Tait equation parameters," The Journal of Chemical Physics, 41, 6, 1884, 1964.

    [28]張朝誠," 纖維含量對短纖維射出成型複材收縮及翹曲之影響," 碩士論文, 國立成功大學, 1994.

    [29]Moldex3d User's Manual.

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