| 摘要 |
Provided are a pasty composition for aluminum brazing which has excellent coating properties, is capable of attaining favorable dimensional accuracy of products obtained after brazing, causes less erosion, and allows favorable external appearances of brazed portions (fillets); an aluminum-containing member coated with the pasty composition for aluminum brazing; and a method, using the pasty composition for aluminum brazing, for brazing the aluminum-containing members. The pasty composition for aluminum brazing contains an aluminum-containing powder. In a case where on a cumulative grading curve of the aluminum-containing powder, a particle diameter D µm which corresponds to a Q volume % is indicated as D(Q) µm, D(50) µm is greater than or equal to 20 µm and less than or equal to 150 µm; and D(90) µm/D(10) µm is less than or equal to 5. A mass percentage of particles, in the aluminum-containing powder, which pass through a screen mesh having an opening of 45 µm is less than or equal to 50 %. A flowability of the aluminum-containing powder is less than or equal to 80 seconds/50 g. |
