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Fiber drawing and annealing device

An annealing device and optical fiber technology, used in glass manufacturing equipment, manufacturing tools, etc., can solve the problems of warpage attenuation, unstable optical fiber parameters, and failure to meet target requirements, and achieve the effect of improving quality and attenuation characteristics.

Pending Publication Date: 2018-08-17
JIANGSU HENGTONG OPTICAL FIBER TECH +1
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  • Abstract
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  • Application Information

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Problems solved by technology

[0002] As the amount of optical fiber is increasing, the current market is in short supply. Domestic optical fiber manufacturers have increased their production by increasing the speed. Fiber parameters are unstable, or even unqualified, such as warpage, attenuation, etc. These technical problems are caused by the sudden drop in the surface temperature of the fiber caused by the rapid collection of the fiber after the speed is increased, making the attenuation and warpage of the bare fiber reach less than target requirement

Method used

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  • Fiber drawing and annealing device

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Embodiment 1

[0020] Such as figure 1 As shown, this embodiment discloses an optical fiber drawing and annealing device, which includes an annealing tube 2 and an annealing auxiliary device 8. The top of the annealing tube 2 is connected to the drawing furnace, and the annealing auxiliary device 8 is sealed and connected to the bottom of the annealing tube 2. The bottom of the auxiliary device 8 is screwed to the base 36, and the entire annealing device is supported by the base 36. The above-mentioned annealing tube 2 is provided with an axial cavity 4, the cavity wall of the above-mentioned axial cavity 4 is provided with a graphite part 12, and the above-mentioned annealing auxiliary device 8 is provided with a graphite liner 10, and the above-mentioned liner 10 is connected with the axial cavity 4 are arranged coaxially, and the end of the above-mentioned graphite piece 12 is connected with the liner 10. The optical fiber 1 enters the axial cavity 4 after being drawn out of the furnace,...

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Abstract

The invention discloses a fiber drawing and annealing device, comprising an annealing tube. An axial cavity for a fiber to pass through is arranged in the annealing tube; an electric heater is arranged in a tube body of the annealing tube and is arranged around the axial cavity; by adjusting the working temperature of the electric heater, the temperature in the axial cavity decreases gradually from the direction of the fiber passing in the axial cavity to the direction of the fiber passing out of the axial cavity. The fiber drawing and annealing device also includes an annealing assistor hermetically connected to the fiber outgoing end of the annealing tube; a lining is arranged in the annealing assist and is coaxial to the axial cavity. The fiber drawing and annealing device of optical structural design is abutted to a drawing furnace; after the fiber is drawn and fed out of the furnace, the fiber enters the annealing device having the temperature slowly decreasing; attenuation features, warping characteristics and fiber internal stress can be improved for the fiber, and fiber quality is improved in a whole.

Description

technical field [0001] The invention belongs to the field of quartz optical fiber manufacturing, in particular to an optical fiber drawing and annealing device, which can improve the attenuation and warpage of the optical fiber after use. Background technique [0002] As the amount of optical fiber is increasing, the current market is in short supply. Domestic optical fiber manufacturers have increased their production by increasing the speed. Fiber parameters are unstable, or even unqualified, such as warpage, attenuation, etc. These technical problems are caused by the sudden drop in the surface temperature of the fiber caused by the rapid collection of the fiber after the speed is increased, making the attenuation and warpage of the bare fiber reach less than target requirements. Contents of the invention [0003] The technical problem to be solved by the present invention is to provide an optical fiber drawing and annealing device. After the optical fiber is drawn out...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C03B37/10
CPCC03B37/10
Inventor 郝昌平陈伟严勇虎袁健徐超徐陆锋张良董魏曹少波戚仁宝李辉代文豪史辉王林卢萍
Owner JIANGSU HENGTONG OPTICAL FIBER TECH
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