Fiber drawing process

Abstract

The invention discloses an optical fiber drawing process which comprises: 1, a melting drawing process; 2, a sizing cooling process; 3, a primary coating process; 4, a primary curing process; 5, a secondary coating process; 6, a secondary curing process. In the step 3 and the step 5, the same centralized feeding system is adopted; the centralized feeding system comprises a feeding system and a feeding tank; the feeding system conveys a paint to the feeding tank by a pipeline; the feeding tank comprises a temperature control system; the temperature control system controls a paint temperature inthe feeding tank to be constant; the feeding tank conveys the paint into a coating device. According to the invention, by adopting the centralized feeding system to uniformly carry out supply and conveying of the paint, labor intensity of personnel is reduced, the continuity of production is ensured, and meanwhile, the temperature control system is utilized to guarantee the paint temperature in the feeding tank to be constant so as to ensure that viscosity of the paint entering the coating device is proper.

Description

technical field [0001] The invention relates to the field of optical fiber production, in particular to an optical fiber drawing process. Background technique [0002] Optical fiber, short for optical fiber, is a fiber made of glass or plastic that acts as a means of light transmission. The optical fiber is composed of two layers of glass with different refractive indices. The inner layer is the optical core with a diameter of several microns to tens of microns, and the outer layer has a diameter of 0.1 to 0.2 mm. Generally, the refractive index of the inner core glass is 1% larger than that of the outer glass. According to the principle of refraction and total reflection of light, when the angle at which the light hits the interface between the inner core and the outer layer is greater than the critical angle for total reflection, the light cannot pass through the interface and is fully reflected. There are many types of optical fibers, and the required functions and perf...

AI Technical Summary

Problems solved by technology

[0004] The invention provides an optical fiber drawing process, which solves the defects of the existing optical fiber drawing process such as high labor intensity, high operation risk, error-prone, and difficulty in guaranteeing the temperature of the coating material.

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