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Device and method for producing stack of fine glass particles

A technology of glass particles and deposits, applied in glass deposition furnaces, manufacturing tools, glass production, etc., can solve the problems of fiber disconnection, transmission, loss, etc.

Inactive Publication Date: 2006-12-27
SUMITOMO ELECTRIC IND LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, if Ni itself is mixed into the glass particle deposit, it will lead to disconnection of fibers or increase in transmission loss

Method used

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  • Device and method for producing stack of fine glass particles
  • Device and method for producing stack of fine glass particles
  • Device and method for producing stack of fine glass particles

Examples

Experimental program
Comparison scheme
Effect test

example 1

[0155] used by one such as image 3 The combination of reaction vessel 1 (inner diameter: 310mm) and reaction vessel quartz sleeve 15 (inner diameter: 250mm) made of Ni as shown, one such as Figure 4 Shown upper ventilator 2 (inner diameter: 300mm) and upper ventilator quartz sleeve 16 (inner diameter: 240mm) made of Ni, one such as Figure 5 As shown, the lower ventilator 2 (inner diameter: 300mm) made of Ni and the lower ventilator quartz sleeve 17 (inner diameter: 240mm) are composed similar to figure 1 In the glass particle deposit production device 10 shown, glass particles are deposited around a starting rod.

[0156] The upper cover 14 has such as Figure 6 and 7 The structure shown, wherein a support rod insertion hole 27 (inner diameter: 55 mm) for inserting a support rod 6 (outer diameter: 50 mm) is provided at the center, a quartz-made one with a clean gas inlet pipe 31 having a height of 1000 mm is provided. An outer peripheral wall 28 is installed around the ...

example 2

[0163] used by one such as image 3 The combination of reaction vessel 1 (inner diameter: 310mm) and reaction vessel quartz sleeve 15 (inner diameter: 250mm) made of Ni as shown, one such as Figure 4 Shown upper ventilator 2 (inner diameter: 300mm) and upper ventilator quartz sleeve 16 (inner diameter: 240mm) made of Ni, one such as Figure 5 As shown, the lower ventilator 2 (inner diameter: 300mm) made of Ni and the lower ventilator quartz sleeve 17 (inner diameter: 240mm) are composed similar to figure 1 In the glass particle deposit production device 10 shown, glass particles are deposited around a starting rod.

[0164] It is equipped with a support rod insertion hole 27 for inserting the support rod 6 (outer diameter: 50mm), and is installed on the upper cover 14, which can be stretched and connected with the upper cover 14 and the lifting device as the vertical movement of the support rod 6 moves up and down. The bellows 3 of the device 30 to cover the support rod 62,...

example 3

[0169] used by as Figure 10 Shown is a reaction vessel 1 (inner diameter: 260 mm) made of quartz except for a framework portion 36 made of Ni and an upper ventilator 2 and a lower ventilator 3 (inner diameter: 250 mm) made of quartz having a shape as shown in FIG. 12 composed of, similar to Figure 9 The glass particle deposit manufacturing apparatus shown in , glass particle deposit manufacturing apparatus 10A, deposits glass particles. A flat upper cover 38 made of Ni without unevenness on the inner surface 54 is placed on the upper ventilator 2, as shown in Figure 13, the upper cover 38 has the following features: image 3 The shown band has a structure for inserting a support rod 6 (outer diameter: 50 mm) into a support rod insertion hole 56 (inner diameter: 55 mm). An exhaust pipe 5 is installed at 50 mm above the central position of the three burners 4 (that is, the middle burner position).

[0170] During the deposition operation of glass particles, the concentratio...

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Abstract

Provided is an apparatus for manufacturing a glass particles deposit in which it is possible to effectively prevent the foreign matter from being deposited on or mixed into the glass particles deposit during the manufacturing operation. The apparatus for manufacturing the glass particles deposit comprises an upper funnel, a reaction vessel and a lower funnel, wherein the glass particulates are deposited around the outer circumference of a starting rod supported by a support rod within the reaction vessel while the starting rod is being rotated around its axis and reciprocated up and down, characterized in that a sleeve made of quartz separating an inner wall of the reaction vessel and a central rotation member is installed inside the reaction vessel.

Description

technical field [0001] The present invention relates to an apparatus and method for manufacturing a glass particle deposit using an OVD method, more particularly, to a glass particle deposit manufacturing apparatus and method capable of preventing impurities from being mixed into the glass particle deposit during deposition operations. Background technique [0002] In using the OVD method by putting SiCl 4 or GeCl 4 The glass raw material gas is supplied to the hydrogen-oxygen flame from the burner, and SiO is produced due to the hydrolysis reaction of the flame 2 or GeO 2 Glass particles, glass particles are deposited in the radial direction around an initial rod, when using the OVD (Outside VapourDeposition: External Vapor Deposition) method to manufacture glass particle deposits, the glass particles produced by the burner are deposited in the initial around the rod, but the glass particles float without depositing in the space of the manufacturing apparatus consisting ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C03B37/018C03B8/04G02B6/00C03B37/014
CPCC03B37/0144C03B37/01406C03B37/01486C03B2207/52Y02P40/57C03B37/018
Inventor 石原朋浩
Owner SUMITOMO ELECTRIC IND LTD