Method for welding together a primary preform and a silica bar
    4.
    发明公开
    Method for welding together a primary preform and a silica bar 有权
    Verfahren zumZusammenschweißeneiner ersten Vorform und einerKieselsäurestange

    公开(公告)号:EP1978001A1

    公开(公告)日:2008-10-08

    申请号:EP08005072.7

    申请日:2008-03-18

    申请人: Draka Comteq B.V.

    摘要: The invention relates to a method for welding together one end of a primary preform 100 and one end of a silica bar 210, 215 having different properties, the method comprising the steps of projecting and fusing silica grain under a plasma torch 300 on the end of the primary preform 100 and on the end of the silica bar 210, 215; and bringing into contact the end of the primary preform 100 and the end of the silica bar 210, 215 in order to form a welding area 150 between the end of the primary preform 100 and the end of the silica bar 210, 215. The silica bar may be a supporting silica bar 210, 215 of a glass working lathe support 200, 205 for overcladding the primary preform 100. With the invention, it is possible to secure a primary preform 100 on a glass working lathe support 200, 205 at less costs while limiting the risk of breakage of the weld.

    摘要翻译: 本发明涉及一种用于将初级预制件100的一端和具有不同性质的二氧化硅棒210,215的一端焊接在一起的方法,所述方法包括以下步骤:在等离子体炬300的下端投影和熔化二氧化硅颗粒 初级预型件100和二氧化硅棒210,215的端部; 并使其与初级预制件100的端部和二氧化硅棒210,215的端部接触,以便在初级预制件100的端部和二氧化硅棒210,215的端部之间形成焊接区域150.二氧化硅 棒可以是玻璃加工车床支撑件200,205的支撑二氧化硅棒210,215,用于包覆初级预型件100.通过本发明,可以将玻璃加工车床支架200,205上的初级预制件100固定在较小的位置 成本同时限制了焊缝断裂的风险。

    Optical fiber having reduced residual stress discontinuity
    8.
    发明公开
    Optical fiber having reduced residual stress discontinuity 审中-公开
    Optische Faser mit reduzierter Restspannungsdiskontinuittt

    公开(公告)号:EP1564570A1

    公开(公告)日:2005-08-17

    申请号:EP05002495.9

    申请日:2005-02-07

    IPC分类号: G02B6/18 C03B37/027

    摘要: An optical fiber having reduced residual stress discontinuity is disclosed. The optical fiber includes a core which is an optical transmission medium and a clad for surrounding the core. The residual stress discontinuity at an interface between the core and the clad is 20.0 MPa or less, which is represented by an absolute value of a difference between a minimum axial stress at (r/a) = 0.8-1.1 and a maximum axial stress at (r/a) = 1.0-1.2, wherein a is the radius of the core and r is a radius measured from the center of the core.

    摘要翻译: 公开了具有减小的残余应力不连续性的光纤。 光纤包括作为光传输介质的芯和用于围绕芯的包层。 在芯和包层之间的界面处的残余应力不连续性为20.0MPa或更小,其由(r / a)= 0.8-1.1的最小轴向应力与最大轴向应力之间的差异的绝对值 (r / a)= 1.0-1.2,其中a是芯的半径,r是从芯的中心测量的半径。