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  • 學位論文

低熔點鋁基填料合金粉末之研究

Research of low-melting-point powder Al-based filler alloy

指導教授 : 曹龍泉

摘要


低熔點鋁基填料合金廣泛應用於航空零件的接合。本研究是針對超音波振動系統來製備金屬粉體,其研究可分為三部分。(1)低熔點鋁基填料的相關探討;(2)超音波振幅桿的設計與模型驗證;(3)利用振動霧化法來製備鋁基合金粉末。 研究結果顯示,低熔點鋁基填料富有Si相、Al2Cu相、Al-Si-Zn共晶相及Al-Cu-Zn共晶相。當Cu及Zn的含量越高,其硬度值越高;在超音波振幅桿的漸縮曲線設計分析中,可以放大振動的位移量,並且能夠提高霧化效果;在低熔點鋁基填料粉末,能夠製備粒徑小於74μm。

並列摘要


Low melting point aluminum based filler alloys are widely used in the connection of aerospace. In this study, prepare to metal powder for ultrasonic system. The research can be divided into three parts:(1) Discussion on low melting point aluminum-based fillers.(2) Design verification on the ultrasonic horn.(3) Low melting point aluminum based filler is prepared by ultrasonic atomization method. The research shows:(1) the low melting point aluminum -based filler have rich Si, Al2Cu, eutectic Al-Si-Zn and eutectic Al-Cu-Zn phase. When the content of Cu and Zn is higher, the hardness value is higher. (2) curve design analysis, ultrasonic horn can magnify the displacement of vibration, and improving to the atomizing. (3) A low melting point aluminum-based filler powder capable of less than 74 μm.

參考文獻


[1]王遐,1992,「粉末製造與傳統粉末加工成型」,台北:機械技術。
[2]黃揚升,2016,「金屬粉末的製程與應用」,科學發展,第523期,第10-14頁。
[3] S.Y. Chang, L.C. Tsao, Y.H. Lei, S.M. Mao, C.H. Huang, 2011, ‘‘Brazing of 6061 aluminum alloy/Ti–6Al–4V using Al–Si–Cu–Ge filler metals’’, Journal of Materials Processing Technology, vol. 212, no.1, pp. 8-14.
[4]Z. Niu, J. H. Kaikai Liu, F. X. Shuhai, C. X. Zhao, 2012,‘‘Brazing of 6061 aluminum alloy with the novel Al-Si-Ge-Zn filler metal’’, Materials Letters, vol. 179, pp. 47-51.
[5]Z. Ye, H.Yang, J. Huang, J. Yang, S. Chen, 2017, ‘‘A novel Zn-Al-Si corrosion resistant filler metal for Cu/Al brazing’’, Materials Letters, vol. 206, pp. 201-204.

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