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Vacuum Brazing Processes of Aluminum Foam
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Vacuum Brazing Processes of Aluminum Foam
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    摘要:

    采用3種釬焊工藝焊接泡沫鋁進(jìn)行對比實驗，焊接工藝包括：在高真空（真空度為10-3 Pa）條件下采用復(fù)合層釬料進(jìn)行釬焊；在低真空（真空度為1 Pa）條件下采用復(fù)合層釬料進(jìn)行釬焊；在高真空（真空度為10-3 Pa）條件下采用單層釬料進(jìn)行釬焊。對焊接接頭的宏觀、微觀特性與抗彎強度進(jìn)行分析比較。結(jié)果表明：在高真空條件下采用復(fù)合層釬料進(jìn)行釬焊可獲得滿意的接頭，接頭強度明顯高于母材；在低真空條件下采用復(fù)合層釬料進(jìn)行釬焊所得到的接頭強度明顯低于母材；在高真空條件下采用單層釬料進(jìn)行釬焊所得到的接頭強度略低于母材。

    Abstract:

    Butt joints of aluminum foam were made by three different brazing processes including brazing with multilayer filler metal in high vacuum of 10-3 (Pa) degree, brazing with multilayer filler metal in low vacuum of 1 (Pa) degree and brazing with monolayer filler metal in high vacuum of 10-3 (Pa) degree. The macrostructure and microstructure characteristics and bending strength of the joints were investigated and compared. The results indicate that the brazed specimen can achieve a satisfactory joint when brazed with multilayer filler metal in high vacuum. The bending strength of the joint is higher than that of the base metal. However, the bending strength of the joint is obviously lower than that of the base metal when brazed with multilayer filler metal in low vacuum, while it is slightly lower when brazed with monolayer filler metal in high vacuum.

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陳楠楠,鳳 儀,陳 杰,李 斌,陳凡燕,趙景淞. Vacuum Brazing Processes of Aluminum Foam[J].稀有金屬材料與工程,2013,42(6):1118~1122.[Chen Nannan, Feng Yi, Chen Jie, Li Bin, Chen Fanyan, Zhao Jingsong. Vacuum Brazing Processes of Aluminum Foam[J]. Rare Metal Materials and Engineering,2013,42(6):1118~1122.]
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  • 收稿日期:2012-06-15
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