| 摘要 |
In a metal brazing process, particularly suitable for forming composite bottoms of kitchen utensils, use is made of a solder-flux composite in which the flux is contained in a plurality of cavities formed on at least one face provided on the solder. In one embodiment, a strip of solder is formed by passage between a relief- surfaced roller and a roller covered with a deformable covering, with indentations and corresponding projections on respective opposite faces. The arrangement is such that the indentations formed on one face and the cavities formed between the projections on the other face retain a substantially identical quantity of flux. The contours of these indentations are preferably regular rows of squares, rhombuses or triangles. Chemical or electro-chemical engraving may also be used to form the cavities. Brazing using induction heating is referred to. |
