Quartz glass tube rod production furnace and quartz glass tube rod production method

Abstract

The invention provides a quartz glass tube rod production furnace and a quartz glass tube rod production method. The quartz glass tube rod production furnace comprises a quartz smelting furnace, a base metal fixing assembly, a receiving mechanism and a central positioning system, wherein a lifting device is mounted above the quartz smelting furnace; the base metal fixing assembly can be installed on the lifting device after being connected with the quartz base metal so as to hoist the quartz base metal above the quartz smelting furnace, and the base metal fixing assembly comprises a replaceable connecting piece which can be replaced according to the specification of the quartz base metal to be connected; the receiving mechanism is positioned below the quartz smelting furnace and is used for receiving the quartz glass tube rod output by the quartz smelting furnace and slowly pulling out the quartz glass tube rod at a constant speed; and the central positioning system is arranged below the quartz smelting furnace and is used for positioning the formed quartz glass tube rod. According to the structure, the production of various types of quartz glass tube rods can be realized by replacing the replaceable connecting piece. The quartz base material is not in contact with the crucible, so that the quartz smelting furnace can realize discontinuous and small-batch production, and the purity and the performance of the quartz glass tube rod are improved.

Description

technical field [0001] The invention relates to the field of quartz glass tube rod production, and more particularly, to a quartz glass tube rod production furnace and a production method of the quartz glass tube rod. Background technique [0002] The demand for quartz glass tubes and rods such as quartz glass tubes and rods for existing semiconductors and optical fibers is less than that of quartz glass products for ordinary light sources, but there are many specifications and varieties, and the product outer diameter and wall thickness specifications span a wide range. There are the following problems in the production of continuous melting furnaces: the metal crucibles, material tables and forming devices used in the furnace will be in direct contact with the raw materials for producing quartz during the production process. Therefore, the products drawn from the raw materials have metal pollution, which cannot meet the Demand for purity indicators of high-end light source...

AI Technical Summary

Problems solved by technology

[0002] Compared with the demand for quartz glass products for ordinary light sources, the demand for quartz glass tubes and rods such as quartz glass tubes and rods for semiconductors and optical fibers is small, but there are many specifications and varieties, and the span range of product outer diameter and wall thickness specifications is large. The following problems exist in the production of continuous melting furnaces for production: the metal crucibles, material tables and molding devices used in the furnace will be in direct contact with the raw materials for quartz production during the production process. Therefore, the products drawn from raw materials have metal pollution and cannot meet the requirements Demand for purity indicators of high-end light sources, semiconductors, optical fibers, etc.

At the same time, when the existing continuous melting furnace produces quartz glass tubes and rods, the quartz raw material is in direct contact with the furnace body. In order to avoid the pollution of the furnace body to the quartz raw material, it takes a lot of manpower and material resources every time the continuous melting furnace stops production. A large amount of cleaning and maintenance is carried out on the continuous furnace. Therefore, every time the continuous furnace is stopped, the cost required is very huge. In order to avoid the cost caused by intermittent production, the existing continuous furnace is required. production, but the demand for quartz glass tubes and rods for semiconductors and optical fibers is small, and the span range of outer diameter and wall thickness specifications is large, which is not suitable for long-term continuous production through the existing continuous furnace production method

At the same time, the existing continuous melting furnaces need to use multiple continuous melting furnaces to produce different types of products with various specifications and types. It is difficult to achieve compatible production of multiple products, resulting in a large waste of production during transition, and some specifications are the limit specifications of the melting furnace. Production The product tolerance is difficult to control

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