| 摘要 |
PURPOSE:To improve a sealing property by doubly applying different sealing materials between an inlet sealing plate and an inlet sealing ring. CONSTITUTION:An inlet sealing ring 2 is adsorbed in vacuum by an inlet sealing ring adsorptive head 12 fixed on a shaft 13, the tip part of an applying needle 11 is lowered onto the internal surface of the inlet sealing ring, and a prescribed amount of a sealing material 7, e.g., chlorosulfonated polyethylene excellent in its propetly of adhering to the resin made inlet sealing ring 2 is applied from the applying needle 11 while turning the inlet sealing ring 2 by means of the rotation of the shaft 13. Then, after drying this inlet sealing ring 2 on which the sealing material 7 is applied for a prescribed period of time and allowing the solvent to volatilize, a sealing material 6 is uniformly applied on the sealing material 7 of the inlet sealing ring 2 on which the sealing material 7 has been already applied by supplying the different sealing material 6, e.g., asphalt pitch from the applying needle 11 using the same method as described above. In this way, an inlet sealing body is constructed by uniting the inlet sealing ring 2 on which two kinds of the sealing materials 6 and 7 are applied so as to be overlapped and an inlet sealing plate 1 in a body. |
