公开(公告)号：EP1188724A1

公开(公告)日：2002-03-20

申请号：EP01301201.8

申请日：2001-02-12

Applicant: LUCENT TECHNOLOGIES INC.

Inventor： Fleming, James William Jr. ,  Kakar, Sandeep ,  Lum, Richard M. ,  Monberg, Eric M.

IPC: C03B37/012

CPC classification number: C03B37/02754 ,  C03B37/01211 ,  C03B37/01225 ,  C03B37/0126 ,  C03B37/01446

Abstract: An improved technique for assembling and drawing fiber from preforms is provided. In one embodiment, the technique involves providing a core rod assembly comprising a core rod and a bushing attached at an end of the assembly. The core rod assembly is inserted into an unsintered overcladding tube, and secured to the tube such that the core rod assembly is suspended within. The overcladding tube and the core rod assembly are heated to sinter the overcladding tube and thereby form a preform assembly. During the heating step, the bushing comes into contact with the interior of the overcladding tube, and, because the bushing has a larger diameter than the core rod, an annular gap is maintained between the core rod assembly and the interior of the overcladding tube. It is then possible to attach a draw handle to the preform assembly, place the preform assembly into a draw tower, and draw fiber from the preform assembly by an overclad during draw technique.

Abstract translation: 提供了一种用于装配和拉伸预型件从纤维的改进技术。 在一个中，实施例的技术涉及提供的芯棒组件，其包括一个芯杆并且在所述组件的一端连接的衬套。 芯棒组件插入未烧结在外包管，和固定到所述管检查做了芯杆组件内暂停。 外包管和芯杆组件被加热以烧结外包管，从而形成预型件组件。 在加热步骤期间，套管进入与外包管的内部接触，而且，由于衬套具有比上环形设计间隙的芯棒保持在芯杆组件和外包管的内部之间的更大的直径。 然后，可以对把手附着到拉丝预制棒组件，所述预成型件组件放置到拉丝塔和拉伸技术中通过在包覆绘制从预制件组件的纤维。