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Volume 42 Issue 3
Mar.  2016
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Journal of Beijing University of Aeronautics and Astronautics  > 2016  >  42(3): 619-624.
XIONG Huan, QU Wenqing. Low-temperature brazing wettability research of LD30 aluminum alloy and 304 stainless steel[J]. Journal of Beijing University of Aeronautics and Astronautics, 2016, 42(3): 619-624. doi: 10.13700/j.bh.1001-5965.2015.0219(in Chinese)
Citation: XIONG Huan, QU Wenqing. Low-temperature brazing wettability research of LD30 aluminum alloy and 304 stainless steel[J]. Journal of Beijing University of Aeronautics and Astronautics, 2016, 42(3): 619-624. doi: 10.13700/j.bh.1001-5965.2015.0219(in Chinese)
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Low-temperature brazing wettability research of LD30 aluminum alloy and 304 stainless steel

doi: 10.13700/j.bh.1001-5965.2015.0219

  • School of Mechanical Engineering and Automation, Beijing University of Aeronautics and Astronautics, Beijing 100083, China

  • Received Date: 13 Apr 2015
  • Publish Date: 20 Mar 2016
    Abstract
  • LD30 aluminum alloy with 304 stainless steel using low temperature brazing was performed in the wettability research. Through wettability study contrast, three kinds of low melting point solders 60Sn-40Pb, Sn-3.5Ag and 35Sn-40Pb-25Bi which were suitable for LD30 aluminum alloy and 304 stainless steel were chosen, and solder flux was selected. The joint of microstructure, phase composition, X-ray inspection were analyzed. Results show that the 60Sn-40Pb and 35Sn-40Pb-25Bi combine with H3PO4 have good wettability on 304 stainless steel; the 60Sn-40Pb and 35Sn-40Pb-25Bi combine with 50% H3PO4 and 50% glycol have good wettability in the brazing experiment and the Sn-3.5Ag has relatively poor wettability.

     

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