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完整後設資料紀錄
DC 欄位 | 值 | 語言 |
---|---|---|
dc.contributor.advisor | 潘永寧(Yung-Ning Pan) | |
dc.contributor.author | Chi-Chia Lin | en |
dc.contributor.author | 林其加 | zh_TW |
dc.date.accessioned | 2021-06-16T16:12:10Z | - |
dc.date.available | 2013-03-15 | |
dc.date.copyright | 2013-03-15 | |
dc.date.issued | 2013 | |
dc.date.submitted | 2013-02-18 | |
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Chiou, 'Effects of Pb and solidification conditions on the graphite structure of heavy section ductile cast irons,' Transactions of the American Foundrymen's Society, vol. 103, pp. 265-273, 1995. [20] E. N. Pan and C. Y. Chen, 'Effects of Bi and Sb on the graphite structure of heavy section ductile cast irons,' Transactions of the American Foundrymen's Society, vol. 104, pp. 845-858, 1996. [21] G. S. Cho, K. H. Choe, K. W. Lee, and A. Ikenaga, 'Effects of alloying elements on the microstructures and mechanical properties of heavy section ductile cast iron,' Journal of Materials Science and Technology, vol. 23, pp. 97-101, 2007. [22] M. Gagne and C. Labrecque, 'Microstructural defects in heavy section ductile iron castings: formation and effect on properties,' Transactions of the American Foundry Society, vol. 117, pp. 561-571, 2009. [23] P. Larranaga, I. Asenjo, and J. 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Schelleng, 'Heavy ductile iron castings composition effect on graphite structure,' Transactions of the American Foundrymen's Society, vol. 69, pp. 672-679, 1961. [28] J. Loper, C. R., A. Javaid, and E. N. Pan, 'Graphite morphology control in heavy section ductile iron,' presented at the Keith Millis Symposium on Ductile Cast Iron, Hilton Head Island, SC, USA, 1993. [29] R. R. Kust and C. R. Loper Jr., 'The production of heavy section ductile iron,' Transactions of the American Foundrymen's Society, vol. 76, pp. 540-546, 1968. [30] M. H. Mulazimoglu, Y. M. Yang, and J. F. Wallace, 'Solidification studies of spiking and large-small nodule formation in ductile iron produced by the in-the-mold process,' Transactions of the American Foundrymen's Society, vol. 93, pp. 627-650, 1985. [31] 蘇子銘, '耐低溫衝擊性能之厚壁球墨鑄鐵研發,' 碩士, 機械工程所, 國立台灣大學, 民國100年. [32] DIN, 'EN 1563 Founding - Spheroidal graphite cast irons,' Deutsches Institut fur Normung, 2005. [33] ASTM A536, 'Standard Specification for Ductile Iron Castings,' ASTM International. [34] ASTM E8/E8M, 'Standard Test Methods for Tension Testing of Metallic Materials,' ASTM International. [35] ASTM E10, 'Standard Test Method for Brinell Hardness of Metallic Materials,' ASTM International. [36] ASTM A327/A327M, 'Standard Test Methods for Impact Testing of Cast Irons,' ASTM International. [37] ASTM E23, 'Standard Test Methods for Notched Bar Impact Testing of Metallic Materials,' ASTM International. [38] 顏廷宇, '2MW 風力機葉片輪轂系統鑄件之製程及材質控制,' 碩士, 機械工程所, 國立臺灣大學, 民國96年. | |
dc.identifier.uri | http://tdr.lib.ntu.edu.tw/jspui/handle/123456789/62843 | - |
dc.description.abstract | 本研究針對大型風力發電機之關鍵零組件,探討化學成份對於顯微組織(球化率、球墨數、波來鐵含量)及機械性質(抗拉強度、降伏強度、伸長率、低溫衝擊性能)的影響,以建立符合各種不同材質規格之最佳合金設計及熔鑄條件。此外,本研究以迴歸分析的方法,建立化學成份、顯微組織與機械性質之相關性迴歸方程式。此相關性迴歸方程式可針對不同規格要求的鑄件,提供最佳之合金設計及顯微組織,此外,亦可由化學成份及顯微組織依據特定之迴歸方程式來預測鑄件之各項機械性質。又,由上述實驗所獲得之分析結果為基礎,以不同來源之生鐵、不同處理劑添加比例以及不同之二次接種方式鑄造70mm Y-block之分離試樣,以得到最佳之來源生鐵、處理劑添加比例及二次接種方式,並驗證迴歸方程式之準確性。本研究選取2MW機座(Main frame)鑄件為載具,進行模流及凝固分析,以建立澆流道及冒口系統之最適設計技術。 | zh_TW |
dc.description.abstract | The primary purpose of this research is to establish the optimal alloy design and microstructure for achieving the desired mechanical properties (tensile strength, yield strength, elongation and low temperature impact value) of key casting components used in large-scale windmills. Based upon the experimental results from cast-on specimens (series A), multiple regression analyses have been performed to correlate the mechanical properties with chemical compositions and microstructures. The derived regression equations can be used to attain the optimal alloy design for castings with targeted specification. Furthermore, by employing these regression equations, the mechanical properties can be predicted based upon the chemical compositions and microstructures of cast irons. On the other hand, the type of pig irons, the addition amount of nodularizer, ladle and late inoculant, and the method of late inoculation were also investigated in this study. Furthermore, computer simulation was performed on 2 MW main frame casting to simulate the filling and solidification phenomena for achieving the optimal gating and riser system design. | en |
dc.description.provenance | Made available in DSpace on 2021-06-16T16:12:10Z (GMT). No. of bitstreams: 1 ntu-102-R99522737-1.pdf: 3358137 bytes, checksum: 1f992f85db4228f538590010ef99da46 (MD5) Previous issue date: 2013 | en |
dc.description.tableofcontents | 口試委員會審定書 #
誌謝 i 中文摘要 ii ABSTRACT iii CONTENTS iv LIST OF FIGURES vii LIST OF TABLES xi 第 1 章 緒論 1 第 2 章 文獻探討 3 2.1 化學成份對厚壁球墨鑄鐵件之影響 3 2.1.1 碳、矽含量與碳當量之影響 3 2.1.2 其他合金元素之影響 4 2.2 製程參數對球墨鑄鐵顯微組織之影響 5 2.2.1 球化處理 5 2.2.2 接種處理 5 2.2.3 出爐溫度、澆注溫度與澆注時間之影響 6 2.3 DIN EN 1563之球墨鑄鐵規範 6 第 3 章 研究方法 10 3.1 實驗設計 10 3.2 實驗流程 11 3.3 合金設計 12 3.4 鑄造流程 12 3.4.1 模型製作與造模材料 12 3.4.2 配料及熔解方法 12 3.4.3 球化、接種與二次(瞬間)接種處理 13 3.5 機械性質測試 13 3.5.1 拉伸試驗 13 3.5.2 硬度試驗 13 3.5.3 衝擊試驗 14 3.6 金相製備與顯微組織分析 14 3.7 凝固模擬分析 14 第 4 章 結果與討論 21 4.1 符合DIN EN 1563規範之大型風力發電機之關鍵零組件之鑄造技術 21 4.1.1 矽含量對衝擊值之影響 21 4.1.2 基地波來鐵含量對衝擊值之影響 22 4.1.3 衝擊值與抗拉性質之相關性分析 22 4.1.4 化學成份對機械性質之影響(針對EN-GJS-700-2U) 23 4.1.5 化學成份、顯微組織與機械性質之相關性迴歸分析 23 4.2 厚件分離試樣之分析 24 4.2.1 熔解及處理過程中碳、矽之損失量與回收率分析 24 4.2.2 不同生鐵配料對於機械性質之影響 24 4.2.3 處理劑添加比例及二次接種方式對於機械性質之影響 26 4.2.4 顯微組織與機械性質表現之原因探討 27 4.2.5 相關性迴歸方程式之驗證 28 4.3 2MW風力機機座(Main frame)之方案設計(凝固模擬分析) 29 4.3.1 方案一:無冒口設計 29 4.3.2 方案二:設置冒口 30 4.3.3 方案三:重新設計冒口並使用冒口保溫套及冷鐵 30 4.3.4 方案四:採用兩個流路系統並於關鍵部位安放冷鐵 30 4.3.5 方案五:增加關鍵部位之冒口尺寸 31 4.3.6 方案六:安放冷鐵於兩側樑周圍(最佳設計) 31 第 5 章 結論 66 REFERENCE 68 | |
dc.language.iso | zh-TW | |
dc.title | 應用於大型風力發電機之厚壁球墨鑄鐵件之技術研發 | zh_TW |
dc.title | Development of Casting Technologies for Heavy Section Ductile Iron Castings Used in Large-scale Windmills | en |
dc.type | Thesis | |
dc.date.schoolyear | 101-1 | |
dc.description.degree | 碩士 | |
dc.contributor.oralexamcommittee | 楊榮顯,許正勳 | |
dc.subject.keyword | 大型風力發電機,球墨鑄鐵,合金設計,抗拉性質,低溫衝擊性質,迴歸分析,澆流道及冒口設計,模流及凝固分析, | zh_TW |
dc.subject.keyword | Large-scale windmill,Ductile cast iron,Alloy design,Tensile property,Impact toughness,Regression analysis,Gating and riser system design,Computer simulation, | en |
dc.relation.page | 72 | |
dc.rights.note | 有償授權 | |
dc.date.accepted | 2013-02-18 | |
dc.contributor.author-college | 工學院 | zh_TW |
dc.contributor.author-dept | 機械工程學研究所 | zh_TW |
顯示於系所單位: | 機械工程學系 |
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