Effect of Flux Composition on Wettability in Soldering of Aluminum(Materials, Metallurgy & Weldability)
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概要
- 論文の詳細を見る
The effect of flux composition on wettability for soldering of aluminum has been investigated by the use of a wetting balance method. Wettability was measured mainly by the wetting time, T_w, using Sn-9 mass% Zn solder and A1100 aluminum base metal. Fluxes used were composed of triethanolamine-ammonium fluoroborate ; and the effects of additional reagents such as metal fluoborates were investigated. Increase of solder bath temperature (T) decreased T_w. The plots between ln(1/T_w) and 1/T showed straight relationships. The apparent activation energies calculated from the gradients of the straight lines ranged between 27.7〜70.0kJ/mol depending on the flux composition. After the wettability test, metal was precipitated on the surface of aluminum base metal from the added borofluorides in the fluxes. Precipitated metals with low melting points were found to be effective in shortening T_w. On the contrary, T_w increased with a rise of the melting point of precipitated metal.
- 大阪大学の論文
著者
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Okamoto Ikuo
Osaka University
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MIZUTANI Masami
Osaka University
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Matsunawa Akira
Joining and Welding Research Institute, Osaka University
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Mizutani Masami
JWRI, Osaka University
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Okamoto Ikuo
Welding Research Institute Of Osaka University
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TAKEMOTO Tadashi
Osaka University
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Takemoto Tadashi
Department of Experimental Radiology, Shiga University of Medical Science
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MATSUNAWA Akira
Osaka University
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Matsunawa Akira
Joining And Welding Research Institute Osaka University
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Takemoto Tadashi
Department Of Experimental Radiology Shiga University Of Medical Science
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Takemoto T
Osaka Univ. Osaka Jpn
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Matsunawa A
Joining And Welding Research Institute Osaka University
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Mizutani M
Osaka Univ. Osaka Jpn
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Mizutani Masami
Jwri Osaka University
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