Preprints of the National Meeting of JWS
Preprints of the National Meeting of JWS
Session ID : 205
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Host: Japan Welding Society

Effect of ZnCl2 in flux for in-the-air brazing of Al-alloys/SUS304 steel
*Toshi-Taka Ikeshoji, Takashi Ueno, Akio Suzumura, Takahisa Yamazaki
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Keywords: BA4045, Aluminum Brazing Filler, Liquid salt, Liquid metal, duralmin
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Abstract
When Al alloys and SUS304 steel are brazed in the air, the firm oxide films on the both surfaces formed become the obstacle against the sound-joint formation. In this research, It is investigated the effect of ratio of the ZnCl2 in the flux to the brazability of Al-alloys and SUS304 steel. As a result, approximately 10mass% of ZnCl2 improved the wettability. The addition of KF improves the flowability of the flux to yeild stronger brazing joints.
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© 2011 by Japan Welding Society
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