| 摘要 |
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%‰¤AlF 3 ‰¤41 mol%, and 0 mol%<NaF and/or KF‰¤19 mol%. |
