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Manufacturing method of optical fiber preform

A technology of optical fiber preform and manufacturing method, which is applied in the direction of manufacturing tools, glass manufacturing equipment, etc., can solve the problems of plastic sleeves that can only be used once, waste, cumbersome operation, etc., and achieve the effect of preventing waste, protecting the environment, and efficient drying operation

Active Publication Date: 2021-02-09
HANGZHOU FUTONG COMM TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The existing drying method needs a plastic cover every time, and the plastic cover needs to be taken out after drying. The whole process is cumbersome to operate. In addition, the plastic cover can only be used once, which is wasteful.

Method used

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  • Manufacturing method of optical fiber preform
  • Manufacturing method of optical fiber preform
  • Manufacturing method of optical fiber preform

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0049] Below in conjunction with each accompanying drawing, the present invention is described in detail.

[0050] Such as figure 1 As shown, a method for manufacturing an optical fiber preform includes a process of drying the sleeve 29, and the process of drying the sleeve 29 is as follows:

[0051] 1) Put the casing 29 into the drying pipe 1, the drying pipe 1 can be opened and closed, and the drying pipe 1 is closed after putting in the casing 29;

[0052] 2) The two plugs are respectively sealed against the two end faces of the drying pipe 1, and an inlet pipe 10 is movably installed on one of the plugs, and the inlet pipe 10 is used to receive the gas for drying the casing 29, and the other plug is An exhaust pipe 15 is installed on the head;

[0053] 3) Adjust the axial position of the intake pipe 10 so that one end of the intake pipe 10 extends into the casing 29 .

[0054] The present invention utilizes the dry pipe 1 and the plug to replace the plastic sleeve, and ...

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Abstract

The invention discloses a manufacturing method of an optical fiber preform. The manufacturing method comprises a process of drying a sleeve, and the process of drying the sleeve comprises the following steps: 1) putting the sleeve into a drying pipe which can be opened and closed, and closing the drying pipe after putting the sleeve into the drying pipe; (2) attaching two plugs to the two end faces of the drying pipe in a sealed mode respectively, movably installing an air inlet pipe on one plug and used for receiving air used for drying the sleeve, and movably installing an exhaust pipe on the other plug; and 3) adjusting the axial position of the air inlet pipe to enable one end of the air inlet pipe to extend into the sleeve. A plastic sleeve is replaced with the drying pipe and the plug, the position of the air inlet pipe can be conveniently and reliably adjusted through the air inlet pipe arranged on the plug in a sliding mode, and therefore it is guaranteed that one end of the air inlet pipe extends into the sleeve, and efficient drying operation is achieved; the method is convenient to operate, waste can be prevented, and the environment is protected.

Description

technical field [0001] The invention relates to the field of optical fiber preformed rods, in particular to a method for manufacturing optical fiber preformed rods. Background technique [0002] At present, the optical fiber preform is mainly divided into two parts for manufacturing, and the two parts are core rod manufacturing and outer cladding manufacturing. The main process of mandrel manufacturing mainly uses VAD (axial vapor deposition), OVD (external vapor deposition), MCVD (modified chemical vapor deposition) and PCVD (plasma chemical vapor deposition), and the outer cladding manufacturing process mainly includes OVD (external vapor deposition) deposition) and casing method. [0003] The casing method has the characteristics of high production efficiency and low cost. In actual operation, the tail pipe will be welded at one end of the sleeve, and then the mandrel will be inserted into the sleeve through the tail pipe to form a preform, and then the preform composed...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C03B37/012
CPCC03B37/01211
Inventor 张立永
Owner HANGZHOU FUTONG COMM TECH CO LTD
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