FLUX FOR BRAZING ALUMINUM MATERIALS
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United States of America Patent
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app pub date -
Jul 6, 2012
filing date -
Jul 11, 2011
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
The present invention provides a flux for brazing aluminum-based materials, the flux being capable of brazing an A5052 alloy or the like containing 1.5 wt % or more of magnesium even when an Al—Si eutectic alloy (Si content: 7 to 12 wt %; A4343 alloy, A4047 alloy; melt starting temperature: about 577 to 615° C.) is used as a brazing material. Specifically, the present invention provides a flux for brazing aluminum-based materials, comprising, expressed in mol %, 20 mol %≦CsF≦49 mol %, 1 mol %≦LiF≦58 mol %, 19 mol %≦AlF3≦41 mol %, and 0 mol %
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