High-temperature resistant optical fiber production equipment and preparation method thereof
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A production equipment, high temperature resistant technology, applied in the field of optical fiber, can solve the problems of complex polyimide-coated optical fiber equipment, single function, poor process control, etc., to avoid repeated purchase of equipment, save money, great flexibility and The effect of convenience
Pending Publication Date: 2019-07-05
SHANDONG PACIF OPTICS FIBER & CABLE CO LTD
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[0004] The purpose of the present invention is to provide a high-temperature-resistant optical fiber production equipment, which mainly solves the problems of existing polyimide-coated optical fiber equipment such as complexity, single function, and poor process control.
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preparation example Construction
[0040] The preparation process of high temperature resistant optical fiber comprises the following steps:
[0041] (1) Use a graphite furnace to melt and draw the optical fiber preform, wherein the heating temperature of the graphite furnace is 1700°C to 2200°C; among them, the optical fiber preform used for drawing can be different types of optical rods, and its outer diameter ranges It is φ20-30mm; the speed of wire drawing is 4-400m / min.
[0042] (2) After the optical fiber preform is melted in the graphite furnace and drawn to the target outer diameter, the bare optical fiber is cooled naturally, and then coated with different resin coatings through the coating mold to obtain the optical fiber with the target outer diameter;
[0043] (3) According to product requirements, choose to use a single light curing system or heat curing system, select the light curing system or heat curing system by moving the mounting bracket, or choose a combination of light curing system and he...
Embodiment
[0048] (1) Use a graphite furnace to melt and draw the optical fiber preform, wherein the heating temperature is 1700-2200°C; among them, the optical fiber preform used for drawing can be different types of optical rods, and its outer diameter ranges from φ20-30mm ; The drawing speed is 4-400m / min.
[0049] (2) Naturally cool after melting and drawing, and then enter the first coating mold for a resin coating to obtain an optical fiber. The paint is injected from the tank into the mold by air pressure control. Optical fibers with different coating thicknesses correspond to different coating outlet die sizes to ensure the accuracy of the coating size.
[0050] (3) The optical fiber coated with resin coating is cured by light or heat curing system; the optical fiber is coated with resin for the second time through the second coating mold to obtain the optical fiber, and then cured, repeating the first coating and curing .
[0051] (4) The coating resin adopts polyimide therma...
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Abstract
The invention discloses high-temperature resistant optical fiber production equipment and a preparation method thereof, wherein the high-temperature resistant optical fiber production equipment structurally comprises a tower, a high-temperature graphite heating furnace, an optical fiber diameter measuring instrument, a light curing system, a thermal curing system, an optical fiber releasing systemand an optical fiber receiving system, wherein the top end of the tower is provided with a rod feeding device; a high-temperature graphite heating furnace is arranged under the rod feeding device; the optical fiber releasing system is arranged on one side of the high-temperature graphite heating furnace; the light curing system and the thermal curing system are arranged under the high-temperaturegraphite heating furnace; the light curing system and the heat curing system are placed side by side and are slidably mounted on the same bracket; a first caliper is arranged under the high-temperature graphite heating furnace; the optical fiber receiving system is arranged below the light curing system and the heat curing system. The curing mode of the optical fiber coating material can be selected from a thermal curing mode or a light curing mode, and the combination mode of the thermal curing mode and the light curing mode can also be carried out, so that the device for manufacturing the resin-coated optical fiber can accurately control the coating outer diameter and the coating layer concentricity, flexibility and convenience.
Description
technical field [0001] The invention relates to the field of optical fibers, in particular to high-temperature-resistant optical fiber production equipment and a preparation method. Background technique [0002] In recent years, in special occasions such as marine development, petroleum, mine, metallurgy, national defense and many emerging fields, the demand for high temperature resistant optical fiber cables is increasing day by day; in addition, with the development of optical fiber technology, the application of optical fiber extends to the field of sensing technology. The scope will mainly involve harsh environments such as high-temperature environments. Conventional acrylate-coated optical fibers can no longer adapt to high-temperature and harsh environments; therefore, the development of a high-temperature optical fiber that can withstand high temperatures above 200 ° C is an urgent problem to be solved. [0003] At present, the existing conventional communication opti...
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Application Information
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