Reducing device and reducing method of quartz glass rod

A quartz glass rod and diameter reduction technology, applied in glass forming, glass manufacturing equipment, manufacturing tools, etc., can solve the problems of complex airflow movement, interference of reducing diameter rods, oxidation of graphite materials, etc., and achieve a clear and clean exhaust system. Controllable, deformable effects

Active Publication Date: 2018-06-29
中建材衢州金格兰石英有限公司
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  • Abstract
  • Description
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  • Application Information

AI Technical Summary

Problems solved by technology

The lower and upper ports of the furnace are not sealed before the quartz ingot is melted, so a large amount of air enters from the lower port and exits from the upper port during the heating process, resulting in the oxidation of the graphite material used for heating.
In the prior art, there is also a sealing ring on the upper end of the furnace to prevent air from entering the furnace, but blocking the gas path of the entire furnace by the sealing ring itself is an interference to the laminar air flow, which causes the air flow in the furnace to The movement of the airflow is very complicated. When the airflow hits the sealing device and turns back, it collides with the subsequent airflow and generates a vortex airflow. This vortex airflow is a serious interference to the shrinking rod

Method used

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  • Reducing device and reducing method of quartz glass rod
  • Reducing device and reducing method of quartz glass rod
  • Reducing device and reducing method of quartz glass rod

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Embodiment Construction

[0025] see figure 1 , a diameter reducing device for quartz glass rods, which includes a melting furnace and traction equipment, the traction equipment is used to pull rods, the melting furnace includes a cylindrical outer shell 1 and a cylindrical inner shell 2, the outer shell 1 and the inner shell 2 The upper end is connected by the upper cover plate 11, and the lower end is connected by the lower cover plate. There is an annular gas distribution chamber between the outer shell 1 and the inner shell 2 for distributing protective gas. The upper cover plate 11 is provided with an upper exhaust port at the center. 12. The center of the lower cover plate is fixed with an air retaining pipe 4, and the inner casing 2 is provided with a third air outlet 23, a second air outlet 22, and a first air outlet 21 in sequence from the upper cover 11 to the lower cover side. The inner side of the housing 21 is also fixed with a partition plate 24 and a carrier plate 26, and also includes a...

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Abstract

The invention provides a reducing device and a reducing method of a quartz glass rod. The reducing device comprises a smelting furnace and a traction device, wherein the traction device is used for reducing a pull rod; the smelting furnace internally comprises three gas paths. After an inert gas is introduced to the smelting furnace, the inert gas can be guided according to preset gas paths and then can be discharged from an upper gas discharging opening and a gas blocking pipe, airflow has no situation of striking due to reversing, and a pull rod technology is prevented from being affected byhead-on collision vortex.

Description

technical field [0001] The invention relates to the processing of quartz rods, in particular to a device and method for drawing and reducing the diameter of raw materials by using high-temperature heating. Background technique [0002] In the prior art, the quartz ingot becomes plastic in the furnace, and the quartz glass rod (tube) reaches the required size by traction. The rod drawing process of the quartz rod is to melt the large-diameter quartz ingot and draw it into a predetermined diameter. Dimensional craftsmanship. The heating device for melting the quartz ingot (commonly known as melting drawing) is one of the most critical equipment in the rod drawing process, which directly affects many technical indicators of the product. The conventional structure and working principle of the current melting and drawing system is: the position of the melting furnace remains unchanged, the quartz ingot is put into the melting and drawing, and after being heated and melted, it is...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C03B20/00
CPCC03B20/00Y02P40/57
Inventor 王友军花宁李怀阳隋镁深孔敏秦建鸿祝伟生祝天林
Owner 中建材衢州金格兰石英有限公司
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