| 摘要 |
PURPOSE:To simplify production process and improve pressureproofness by separately joining the outside diameter parts and the inside diameter parts of a plurality of metal plates and integrally joining these joint parts through brazing with amorphous alloy. CONSTITUTION:When a metal bellows 1 is to be prepared, a plurality of metal plates 5 and auxiliary metal fittings 9 are previously grease-removed in a cleaning room and dried. Amorphous alloy foils 8 are superposed successively, interposed between the joint part 7 between the outside diameter part 5a and the inside diameter part 5b of a plurality of metal plates 5 and the joint part 10 with the auxiliary metal fittings 9. A plurality of metal plates 5 and auxiliary metal fittings 9 thus assembled are heated in a heat treating furnace. The amorphous alloy foils 8 interposed between the joint parts 7 and 10 are molten at the same time, and integrally fused onto the metal plates 5 and the auxiliary metal fittings 9 through melting. Therefore, the necessity of welding process is obviated, and production process can be simplified, and pressureproofness can be improved. |
