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研究生:鍾吉垣
研究生(外文):ZHONG,JI-YUAN
論文名稱:利用氣體鎢極電弧對球墨鑄鐵作表面重熔研究
論文名稱(外文):Surface Remelt of Ductile Iron Using GTAW
指導教授:黃立仁黃立仁引用關係
指導教授(外文):HUANG,LI-REN
口試委員:楊棟賢楊進煌黃立仁
口試委員(外文):YANG,DONG-SIANYANG,CHIN-HUANGHUANG,LI-REN
口試日期:2016-06-10
學位類別:碩士
校院名稱:中州科技大學
系所名稱:機械與自動化工程系
學門:工程學門
學類:機械工程學類
論文種類:學術論文
論文出版年:2016
畢業學年度:104
語文別:中文
論文頁數:51
中文關鍵詞:氣體鎢極電弧球墨鑄鐵
外文關鍵詞:GTAWductile iron
相關次數:
  • 被引用被引用:1
  • 點閱點閱:113
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  • 下載下載:21
  • 收藏至我的研究室書目清單書目收藏:0
本研究利用半自動氣體鎢極電弧銲接機(GTAW)表面重熔球墨鑄鐵(ductile iron)材料,將鑄態材料作不加料之重熔處理後,探討銲接參數對球墨鑄鐵重熔後之機械性質變化與相變態之相關機制。並利用電腦模擬 ” Rosenthal’s analytical solution for three – dimensional heat flow during welding “ 來探討銲接參數對球墨鑄鐵表面重熔之影響,以瞭解材料予何種銲接條件下,能夠得到最佳品質之銲道。最後並將實際實驗值以電腦模擬方式來探討銲道內之熱傳過程與溫度分佈問題。
Surface remelt of welding the as-cast ductile iron by using of the semi-automatic gas tungsten arc-welding (GTAW) machine in different energy input. Phase transformation and mechanical properties changing for weldment of ductile iron were observed and analyzes mutually in fusion zone and heat affected zone in matrix.
Comput model of the ductile iron welding bead of thermal cycles, isotherms, and peak temperature locus for the influence of the welding parameters will upon the welding heat input. This governing equation is base on the "Rosenthal's analytical solution for three–dimensional heat flow during welding" to model the bead thermal distribution. Moreover, comparing the experimental data and the value of computer modeling welding bead results physically, to inquire heat input the welding bead conductivity and temperature distribution of the problem.

中文摘要 I
ABSTRACT III
誌謝 IIIII
目錄 IVV
圖目錄 VVI
表目錄 VIIVIII
第一章 緒論 1
1.1研究動機 1
1.2研究目的 4
1.3研究方法 8
第二章 文獻探討 111
2.1球墨鑄鐵簡介 111
2.2沃斯回火球墨鑄鐵製程 155
2.3沃斯回火球墨鑄鐵機械性質 18
2.4沃斯回火球墨鑄鐵表面改質方法 20
2.5氣體鎢極電弧銲法 21
2.5.1氣體鎢極電弧銲接法原理及簡介 21
2.5.2鎢電極之材質及起弧之方法 23
2.5.3銲接參數之影響 26

第三章 實驗方法及步驟 28
3.1 試片的製作 28
3.2 銲接 29
3.3 金相組織觀察 29
3.4 理論模擬 32
第四章 結果與討論 35
4.1 重熔區 ( FZ ) 35
4.2 部分熔解區 ( PMZ ) 36
4.3 熱影響區 ( HAZ ) 37
4.4 理論分析與比較 39
第五章 結論 45
參考文獻 46


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