Wire drawing furnace for heating and melting glass base material for optical fiber

A technology of heating furnace and wire drawing furnace, which is applied in glass fiber drawing devices, glass manufacturing equipment, manufacturing tools, etc. It can solve problems such as shaking optical fibers, oxidation of furnace core tubes, and affecting optical fiber drawing effect, so as to avoid oxidation and ensure drawing effect , to speed up the effect of air flow

Active Publication Date: 2021-09-21
南通安广美术图案设计有限公司
View PDF7 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to solve the following shortcomings in the prior art. The upper and lower openings of the wire drawing furnace are open, and the inert gas introduced in order to avoid oxidation caused by air during the wire drawing process will be transferred to the outside of the wire drawing furnace during the heating process, ...

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Wire drawing furnace for heating and melting glass base material for optical fiber
  • Wire drawing furnace for heating and melting glass base material for optical fiber
  • Wire drawing furnace for heating and melting glass base material for optical fiber

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0026] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention.

[0027] refer to Figure 1-5 , a drawing furnace for heating and melting optical fiber with glass base material, comprising:

[0028] Furnace body structure, the furnace body structure includes an outer furnace 1 and a heating furnace core tube 2, the heating furnace core tube 2 is installed inside the outer furnace 1, and there is an air inlet cavity between the outer furnace 1 and the heating furnace core tube 2, and the heating furnace core The tube 2 is used to heat and melt the glass base material, and the inner upper end of the heating furnace core tube 2 is fixedly connected with a heat insulating ring 3;

[0029] Sealing gas guiding mechanism 4, sealing gas g...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention discloses a fiber drawing furnace for heating and melting glass base material for optical fiber, and the fiber drawing furnace comprises a furnace body structure, wherein the furnace body structure comprises an outer furnace and a heating furnace core tube, the heating furnace core tube is installed inside the outer furnace, and the upper end inside the heating furnace core tube is connected with a heat insulation ring; a sealing gas guide mechanism which comprises an elastic ring cover and a baffle ring, wherein a gap exists between the top of the heating furnace core pipe and the top wall of the outer furnace, one side of the elastic ring cover is fixedly connected to the top wall of the outer furnace, the baffle ring is connected to the top of the heating furnace core pipe, the elastic ring cover is clamped between the baffle ring and the top of the outer furnace, and an air outlet hole is clamped in the bottom of the elastic ring cover; and a rotary exhaust assembly which is mounted between the heating furnace core tube and the baffle ring. The upper opening is sealed in the process of introducing inert gas, so the external air is prevented from entering; the discharge of original gas is accelerated, the content of the inert gas is ensured, and the drawing effect of optical fibers is ensured.

Description

technical field [0001] The invention relates to the technical field of optical fiber drawing, in particular to a drawing furnace for heating and melting a glass base material for an optical fiber. Background technique [0002] In the fiber drawing process, the finished glass tube is fixed, and the bottom end enters the inside of the drawing furnace. The fiber drawing furnace is composed of a furnace core tube for placing the glass base material in the furnace frame. Carbon with high thermal conductivity, such as isotropic graphite, is used for the heater device that heats the furnace core tube, and for the heat insulating material that suppresses the release of heat to the outside. In the process of heating and melting, in order to prevent oxidation of the furnace core tube, rare gases such as argon (Ar), helium (He) or nitrogen (N2) will be fed into the furnace core tube. In addition, inert gas is also fed into the furnace frame to prevent oxidation of heat insulating mate...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): C03B37/029
CPCC03B37/029C03B2205/61
Inventor 洪美结
Owner 南通安广美术图案设计有限公司
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products