| 摘要 |
PURPOSE:To provide the brazing method for an Mg-contg. aluminum alloy material which can conduct excellent brazing by suppressing the reaction of Mg and a flux in brazing of the Mg-contg. aluminum alloy material formed by using a fluoride flux. CONSTITUTION:The aluminum alloy material contg. 0.4 to 1.5wt.% Mg is used as the material to be brazed. A material which contains Si and the fluoride flux, further contains Al and inevitable impurities, is compounded to contain the Si at 5 to 13wt.% of the total contents of the elements exclusive of the fluoride flux and to have 99.5:0.5 to 60:40 weight ratios of the total of the elements exclusive of the flux and the fluoride flux and has the density of >=90% of the theoretical value is used as a brazing filler metal. |
