Process for manufacturing a micro-structured optical fibre
    78.
    发明申请
    Process for manufacturing a micro-structured optical fibre 有权
    微结构光纤制造工艺

    公开(公告)号:US20050072192A1

    公开(公告)日:2005-04-07

    申请号:US10499022

    申请日:2001-12-21

    摘要: In a process for manufacturing a micro-structured optical fibre, an intermediate preform is made by forming a sol; pouring the sol in a cylindrical mould including a set of structural generating elements defining internal structural elements of the intermediate preform; transforming the sol into a gel so as to obtain a cylindrical gel body defining the intermediate preform; and removing the cylindrical intermediate preform from the mould.

    摘要翻译: 在制造微结构光纤的方法中,通过形成溶胶来制造中间预制件; 将溶胶倒入包括限定中间预制件的内部结构元件的一组结构产生元件的圆柱形模具中; 将溶胶转化成凝胶,以获得限定中间预型体的圆柱形凝胶体; 并从模具中取出圆柱形中间预成型件。

    Apparatus and method for fabricating tube-shaped glass monolith using
sol-gel process
    79.
    发明授权
    Apparatus and method for fabricating tube-shaped glass monolith using sol-gel process 失效
    使用溶胶 - 凝胶法制造管状玻璃整体的装置和方法

    公开(公告)号:US5922099A

    公开(公告)日:1999-07-13

    申请号:US037525

    申请日:1998-03-10

    摘要: There are provided tube-shaped glass monolith fabricating apparatus and method using a sol-gel process. In the tube-shaped glass monolith fabricating method using a tube-shaped glass monolith fabricating apparatus which has an upper mold including cylindrical portions of different sizes, a lower mold including a first lower cylindrical portion inclined toward the center thereof by a predetermined degree and a second lower cylindrical portion having a vacuum releasing hole, a cylindrical central mold for forming a tube-shaped glass, and a rod-shaped rod, the lower mold, the central mold, and the rod are assembled and a sol is poured in the central mold. Then, an unmixable liquid is poured on the sol, and the upper mold is assembled to the central mold. The sol is gelled in the central mold, the upper mold is removed, a cap is opened to release vacuum, and the rod is removed. A small amount of the unmixable liquid remains in a gel hole formed in the center of the gel and the vacuum releasing hole is plugged with the cap. An upper portion of the gel hole is sealed with a sealing paper. Subsequently, the gel is dried for a predetermined time, the central mold is removed from the gel, and the gel is dried until the gel completely shrinks. Finally, the sealing paper and the unmixable liquid are removed from the gel. Thus, a tube-shaped dried gel is formed.

    摘要翻译: 提供了使用溶胶 - 凝胶法的管状玻璃整料制造装置和方法。 在使用管状玻璃整体制造装置的管状玻璃整体制造方法中,所述管状玻璃整体制造装置具有包括不同尺寸的圆筒部的上模,下模具包括以预定程度向其中心倾斜的第一下圆筒部, 具有真空释放孔的第二下部圆柱形部分,用于形成管状玻璃的圆柱形中心模具和棒状杆,下部模具,中心模具和杆组装,并将溶胶倒入中心 模子。 然后,将不可混合的液体倒在溶胶上,将上模组装到中心模具上。 溶胶在中心模具中凝胶化,去除上模具,打开盖子以释放真空,并且去除棒材。 少量的不可混合的液体保留在形成于凝胶中心的凝胶孔中,并且真空释放孔与盖堵塞。 凝胶孔的上部用密封纸密封。 随后,将凝胶干燥预定时间,将中心模具从凝胶中除去,并将凝胶干燥直到凝胶完全收缩。 最后,将密封纸和不可混合的液体从凝胶中除去。 因此,形成管状干凝胶。

    Process of manufacturing vitreous silica product including
hydrothermally treating a colloidal sol-gel
    80.
    发明授权
    Process of manufacturing vitreous silica product including hydrothermally treating a colloidal sol-gel 失效
    制造玻璃状二氧化硅产品的方法,包括水热处理胶体溶胶 - 凝胶

    公开(公告)号:US5562752A

    公开(公告)日:1996-10-08

    申请号:US221114

    申请日:1994-03-31

    IPC分类号: C03B19/12 C03B37/016

    CPC分类号: C03B19/12 C03B37/016

    摘要: Heating a wet colloidal gel body in an autoclave above its 1-atmosphere boiling point, under rigorously defined conditions, avoids shrinkage during subsequent drying. As a consequence, drying rates may be increased, and handling care becomes less critical.

    摘要翻译: 在严格限定的条件下,将高压釜中的湿胶体凝胶体加热至高于其1-大气沸点,避免后续干燥期间的收缩。 因此,可以增加干燥速率,并且处理护理变得不那么关键。