| 摘要 |
PURPOSE:To obtain a thin beltlike brazing filler metal for diffusion bonding that can bond a base metal easily with high accuracy, by melting two kinds of brazing filler metals of different melting point separately and projecting onto the surface of a rotating body from a group of nozzles arranged in parallel alternately, and cooling them. CONSTITUTION:Materials 13, 13' of brazing filler metals of different melting point are put in containers 11, 11' separately and melted. Gas pressure is applied to the molten brazing filler metals 13, 13' and the metals ae projected onto the rotating face of a rotating body 16 from nozzles 14a, 14'a-14c, 14'c arranged in parallel alternately. Thin flakes of projected brazing filler metals come into contact at their sides and are quenched, and a body of brazing filler metal in which thin belts are connected alternately in the direction of width is obtained continuously. When the brazing filler metal 17 is used for diffusion bonding of base metals, the base metals do not move freely as the two brazing filler metals do not melt simultaneously. Accordingly, the base metals can be bonded at high accuracy without using a plunger punch. |
