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    • 5. 发明专利
    • Method for dehydrating and sintering porous preform for optical fiber
    • 用于光纤的脱水和烧结多孔预制的方法
    • JP2003321235A
    • 2003-11-11
    • JP2002126537
    • 2002-04-26
    • Hitachi Cable Ltd日立電線株式会社
    • KAWASE KENJISHIRAI YUSUKEIKEDA YUICHIYOSHIZAWA SUSUMUSEKI HIROAKI
    • C03B37/014
    • Y02P40/57
    • PROBLEM TO BE SOLVED: To provide a method for dehydrating and sintering a porous preform for an optical fiber capable of improving yield and dehydrating and transparentizing the porous preform as far as to its base end to form into transparent glass. SOLUTION: In the method for dehydrating and sintering the porous preform for the optical fiber, the porous preform for the optical fiber 4 is inserted, while holding one end of a core section 9 of the preform, into a furnace core tube 2 heated to a high temperature to be dehydrated or sintered. The method is characterized in that the porous preform for the optical fiber 4 is inserted into the furnace core tube 2 after a shielding plate 7 for retaining the heat within the furnace core tube 2 is mounted on the base end 6 of the porous preform for the optical fiber 4. COPYRIGHT: (C)2004,JPO
    • 要解决的问题:提供一种用于脱水和烧结用于光纤的多孔预成型体的方法,该多孔预成型体能够提高成品率,并将多孔预型体脱水和透明化至其基端至形成透明玻璃。 解决方案:在用于光纤的多孔预成型件的脱水和烧结的方法中,将保​​持预成型体的芯部9的一端的光纤4的多孔预成型件插入炉芯管2中 加热至高温脱水或烧结。 该方法的特征在于,在用于将炉芯管2内的热量保持的屏蔽板7安装在多孔预成型件的基端6上之后,将用于光纤4的多孔预成型件插入炉芯管2中 光纤4.版权所有(C)2004,JPO