| 摘要 |
PURPOSE:To enable the molten liquid of a brazing agent used for attaching vanes to be efficiently poured into joining parts by placing a plural number of radiating vanes radially on the outer surface of cylindrical anode, and providing the said joining parts on the top end of the outer periphery of the anode so that the said joining parts correspond to the radiating vanes. CONSTITUTION:A plural number of radiating vanes 12 prepared by punching an oxygen-free copper plate are radially placed on the outer surface of a cylindrical anode 11 made of oxygen-free copper. After that, the outer circumference of the vanes 12 are bound with a copper wire 14 so as to make the end surface of the vanes 12 to be in close contact with the anode 11. Next, an annular groove 11a is provided on the top end of the outer periphery of the anode 11, and a plural number of penetration holes 11b are provided in the groove 11a so as to connect the seat of the groove 11a and the tops of the vanes 12. Then, an autectic brazing agent of silver and copper (BAg-8) is put in the groove 11a, and is molten by heating. At this time, molten brazing agent 13 passes through the holes 11b and reaches to the joining parts between the anode 11 and the vanes 12, thereby joining the anode 11 and the vanes 12. By the means mentioned above, the brazing agent can be efficiently sent into the above joining parts. |
