| 摘要 |
PURPOSE:To reduce a manufacture time and to prevent hindrance to vibration by using thermal welding due to friction heat caused by the vibration in the joint between packing and a diaphragm edge. CONSTITUTION:A ridge having the large diameter of the diaphragm edge 2 and a ridge having the small diameter of the packing 1 are overlapped, a clipping pressure and vibrating force are impressed simultaneously to the overlapped part and the overlapped part is joined. Since the joint between the packing 1 and the diaphragm edge 2 is performed by means of thermal welding due to the friction heat caused by the vibration, the joint is completed only in several seconds. |
