Process for the sintering of hollow cylinders of silicon dioxide soot
    1.
    发明授权
    Process for the sintering of hollow cylinders of silicon dioxide soot 失效
    二氧化硅烟灰中空圆筒烧结工艺

    公开(公告)号:US5665132A

    公开(公告)日:1997-09-09

    申请号:US526944

    申请日:1995-09-12

    CPC classification number: C03B37/01486 C03B19/1453 C03B19/1484 C03B37/01446

    Abstract: A hollow cylinder is held in a vertical orientation and sent continuously through a heating zone for sintering. In a first phase of the sintering operation, the hollow cylinder stands on a support while the upper end (12) of the cylinder is being sintered. In a second phase the cylinder hangs from a hanging element while its lower end (10) is sintered. A vertical rod is fixed to the base on which the lower end is supported, and extends through the hollow cylinder. A retaining ring is fixed inside the upper end of the hollow cylinder. During the first phase, the upper end vitrifies and contracts so that the retaining ring engages the vertical rod. Longitudinal contraction causes the lower end to lift off the base so that the cylinder is suspended during the second phase.

    Abstract translation: 中空圆柱体保持垂直取向,并连续地通过加热区进行烧结。 在烧结操作的第一阶段,中空圆柱体在圆筒的上端(12)被烧结的同时位于支撑件上。 在第二阶段,气缸从悬挂元件悬挂,同时其下端(10)被烧结。 垂直杆固定到底端支撑在底座上,并延伸穿过中空圆筒。 固定环固定在中空圆筒的上端内。 在第一阶段,上端玻璃化并收缩,使得保持环与垂直杆接合。 纵向收缩导致下端抬起底座,使得气缸在第二阶段被悬挂。

    Method for the production of a blank mold for optical fibers
    2.
    发明申请
    Method for the production of a blank mold for optical fibers 有权
    用于生产光纤空白模具的方法

    公开(公告)号:US20060213228A1

    公开(公告)日:2006-09-28

    申请号:US10552539

    申请日:2004-04-06

    Abstract: In a known method for the production of a blank mold for optical fibers, a fluorine-doped SiO2 enveloping glass is produced on a core glass cylinder that rotates about its longitudinal axis, wherein a silicon-containing starting substance is fed to a plasma burner, said substance is then oxidized in a plasma flame assigned to the plasma burner to obtain SiO2 particles, the SiO2 particles are deposited by layers on the enveloping surface of the cylinder of the core glass cylinder in the presence of fluorine and sintered into the enveloping glass. The invention aims at providing an economical method, which builds upon the above-mentioned method, in order to produce a blank mold from which optical multi-mode fibers (52) can be obtained. In comparison with fibers (51) produced according to standard methods, said optical multi-mode fibers are characterized by high initial transmission in the UV wavelength range and good resistance with respect to brief UV radiation, more particularly in the 210-300 nm wavelength range. According to the invention, a plasma flame that irradiates an ultraviolet light having a wavelength of 214 nm with an intensity of at least 0.9 ?W—determined on the basis of plasma flame intensity measurement—is used for the formation and deposition of the SiO2 particles on the core glass.

    Abstract translation: 在用于生产光纤空白模具的已知方法中,在围绕其纵向轴线旋转的芯玻璃圆筒上产生氟掺杂的SiO 2包封玻璃,其中含硅起始 将物质进料到等离子体燃烧器,然后将所述物质在分配给等离子体燃烧器的等离子体火焰中氧化以获得SiO 2颗粒,SiO 2颗粒通过层 在氟化物存在下在芯玻璃圆筒的圆筒的包络表面上,并烧结到包络玻璃中。 本发明的目的在于提供一种以上述方法为基础的经济的方法,以便制造可得到光学多模光纤(52)的坯模。 与根据标准方法生产的纤维(51)相比,所述光学多模光纤的特征在于在UV波长范围内的初始透射率高,并且对于短暂的UV辐射具有良好的电阻,更特别地在210-300nm波长范围 。 根据本发明,使用基于等离子体火焰强度测量来测量具有至少0.9≤W的强度的波长为214nm的紫外光的等离子体火焰,用于形成和沉积SiO 2, 核心玻璃上的SUB> 2 颗粒。

    Method and device for producing a cylindrical body consisting of quartz glass
    3.
    发明申请
    Method and device for producing a cylindrical body consisting of quartz glass 失效
    由石英玻璃制成的圆柱体的方法和装置

    公开(公告)号:US20060048546A1

    公开(公告)日:2006-03-09

    申请号:US10532892

    申请日:2003-10-27

    CPC classification number: C03B37/0142 C03B2207/42 C03B2207/52

    Abstract: A known method for producing a cylindrical body uses a precipitation assembly (5) consisting of several precipitators (4), to which a parent substance is fed via medium supply lines (9), whereby the precipitation assembly (5) completes a closed trajectory (6) according to a predetermined displacement course, said trajectory comprising at least one precipitation path (8) that runs along the longitudinal axis (2) of the support. The aim of the invention is to provide an economical, reproducible, failsafe method based on said known procedure, which enables in particular the production of soot layers (3) on a support (1) at a high precipitation rate and nevertheless a high degree of uniformity. To achieve this, the displacement course (6) comprises a first loop (7a, 8) and a second loop (7b, 8), whereby the completion of the first loop (7a, 8) causes a right-hand torsion in the medium supply lines (9) and the completion of the second loop (7b, 8) causes a left-hand torsion in said lines (9).

    Abstract translation: 用于生产圆柱形主体的已知方法使用由几个沉淀器(4)组成的沉淀组件(5),母体通过介质供应管线(9)供给到沉淀组件(5),由此沉淀组件(5)完成闭合轨迹( 6)根据预定的位移过程,所述轨迹包括沿支撑件的纵向轴线(2)延伸的至少一个沉淀路径(8)。 本发明的目的是提供一种基于所述已知方法的经济,可再现的故障安全方法,其特别是能够以高沉淀速率在支撑体(1)上生产烟灰层(3),然而高度 均匀性 为了实现这一点,位移过程(6)包括第一回路(7a,8)和第二回路(7b,8),由此第一回路(7a,8)的完成导致右扭转 在介质供给管线(9)和第二回路(7b,8)的完成中导致所述管线(9)中的左侧扭转。

    Apparatus for holding a hollow cylinder of silicon dioxide soot
    4.
    发明授权
    Apparatus for holding a hollow cylinder of silicon dioxide soot 失效
    用于保持二氧化硅烟灰的中空圆筒的装置

    公开(公告)号:US5738702A

    公开(公告)日:1998-04-14

    申请号:US820205

    申请日:1997-03-18

    CPC classification number: C03B37/01486 C03B19/1453 C03B19/1484 C03B37/01446

    Abstract: A hollow cylinder is held in a vertical orientation and sent continuously through a heating zone for sintering. In a first phase of the sintering operation, the hollow cylinder stands on a support while the upper end (12) of the cylinder is being sintered. In a second phase the cylinder hangs from a hanging element while its lower end (10) is sintered. A vertical rod is fixed to the base on which the lower end is supported, and extends through the hollow cylinder. A retaining ring is fixed inside the upper end of the hollow cylinder. During the first phase, the upper end vitrifies and contracts so that the retaining ring engages the vertical rod. Longitudinal contraction causes the lower end to lift off the base so that the cylinder is suspended during the second phase.

    Abstract translation: 中空圆柱体保持垂直取向,并连续地通过加热区进行烧结。 在烧结操作的第一阶段,中空圆柱体在圆筒的上端(12)被烧结的同时位于支撑件上。 在第二阶段,气缸从悬挂元件悬挂,同时其下端(10)被烧结。 垂直杆固定到底端支撑在底座上,并延伸穿过中空圆筒。 固定环固定在中空圆筒的上端内。 在第一阶段,上端玻璃化并收缩,使得保持环与垂直杆接合。 纵向收缩导致下端抬起底座,使得气缸在第二阶段被悬挂。

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