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A cleaning method for quartz central tube in an optical fiber ultraviolet curing furnace

A central tube and curing furnace technology, applied in the field of optical fiber manufacturing, can solve the problems of inability to thoroughly clean the volatiles, reduce the light transmittance and cycle life of the quartz central tube, and easily damage the quartz central tube, so as to ensure the coating and curing quality. , Improve the light transmittance and the number of recycling, and the effect of thorough cleaning

Active Publication Date: 2016-09-28
JIANGSU HENGTONG OPTICAL FIBER TECH
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Problems solved by technology

However, this method is easy to damage the quartz center tube during the cleaning process with a brush, and cannot thoroughly clean the volatiles, and will produce many scratches on the surface of the quartz center tube, which will reduce the transmittance and cycle life of the quartz center tube
Another method is to soak with chemical reagents. Although this method can better clean the UV glue volatiles adhering to the quartz central tube, the chemical reagents will corrode the surface of the quartz central tube and produce many small microcracks. Will reduce the light transmittance and cycle life of the quartz center tube

Method used

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  • A cleaning method for quartz central tube in an optical fiber ultraviolet curing furnace
  • A cleaning method for quartz central tube in an optical fiber ultraviolet curing furnace

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Embodiment Construction

[0024] In order to make the technical means, creative features, goals and effects achieved by the present invention easy to understand, the present invention will be further described below in conjunction with specific embodiments.

[0025] refer to figure 1 , the present invention includes a pair of clamping and rotating devices 1 for fixing the quartz center tube to be cleaned and an oxyhydrogen flame generating device for heating the quartz center tube to be cleaned that can move between the two clamping and rotating devices.

[0026] The clamping and rotating device 1 includes a tetrafluoroethylene chuck connected to a rotating motor and a controller for controlling the opening and closing of the chuck. The controller is controlled by motor drive or electromagnetic induction, and the controller is connected with the control device 7 through a line. The clamping and rotating device 1 is used to fix the two ends of the quartz central tube, control the quartz central tube and...

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Abstract

The invention relates to the technical field of optical fiber manufacturing, in particular to a device and a method for cleaning a quartz central tube in an optical fiber ultraviolet curing furnace. The device comprises a clamping rotary device used for fixing a to-be-cleaned quartz central tube and a movable oxyhydrogen flame generating device for heating the to-be-heated quartz central tube, wherein the clamping rotary device is provided with an air sucking device; a temperature sensing device is arranged on the to-be-cleaned quartz tube and is connected with a control device by virtue of a signal wire; the clamping rotary device, the oxyhydrogen flame generating device and the air sucking device are connected with the control device by virtue of signal wires. An oxyhydrogen flame lamp is adopted for heating and baking the quartz central tube and a mode of sucking out exhaust gas such as carbon dioxide after UV rubber combustion by use of the air sucking device is used for overcoming the defects of the cleaning method, so that the cleaning effect is relatively thorough, the inner wall of the quartz central tube can not be damaged, the light transmittance and cyclic utilization times of the quartz central tube are effectively improved, and furthermore the optical fiber coating and curing quality is ensured.

Description

technical field [0001] The invention relates to the technical field of optical fiber manufacturing, in particular to a cleaning device for a quartz central tube in an optical fiber ultraviolet curing furnace and a cleaning method thereof. Background technique [0002] In the optical fiber manufacturing process, the coating volatiles will be generated during the curing process of the coated optical fiber, which will adhere to the inner wall of the quartz center tube in the UV curing furnace. After a period of time, the quartz center tube needs to be cleaned, otherwise the quartz center tube will be reduced. 360nm ultraviolet light transmittance, which affects the quality of fiber curing. [0003] At present, there are two main methods for cleaning the quartz center tube: one is to soak the solvent in the water bath for a long time, and then clean it with a brush. However, this method is easy to damage the quartz center tube during the cleaning process with a brush, and canno...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B08B9/047
CPCB08B7/0085B08B9/027
Inventor 戚仁宝张功会俞亮张诚张良郭浩林贺作为李建明
Owner JIANGSU HENGTONG OPTICAL FIBER TECH
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