Continuous melting furnace capable of highly precisely controlling partial wall of tubular product

Abstract

The invention relates to a continuous melting furnace capable of highly precisely controlling a partial wall of a tubular product. The continuous melting furnace comprises a crucible (1), a furnace body (2), a heater (3), a core rod (4) and a forming mould (5). The crucible (1) is mounted in the furnace body (2); the heater (3) is coated in an outer ring of the crucible (1); the lower end of the core rod (4) penetrates through a furnace cover (6) and extends into the crucible (1) and is opposite to the forming mould (5) mounted on the lower end of the crucible (1); the core rod (4) is of a hollow structure, and the upper end of the core rod communicates with a gas control device (7); a cross-shaped deviation adjusting device (8) is mounted on the furnace cover (6); one end, extending out of the furnace cover (6), of the core rod (4) is mounted in one cross-shaped deviation adjusting device (8); and the core rod (4) controlled by the cross-shaped deviation adjusting device (8) can adjust in X and Y directions in the horizontal plane, so that the partial wall of the tubular product can be adjusted. The continuous melting furnace provided by the invention is simple in structure and convenient to adjust, can greatly improve the consistency of the tube wall and improves the product quality.

Description

technical field [0001] The invention relates to a quartz technology, in particular to a quartz melting furnace technology, in particular to a continuous melting furnace capable of high-precision control of pipe wall deviation. Background technique [0002] As we all know, an important factor that determines the quality of the quartz tube is the wall deviation of the quartz tube. If the wall deviation occurs, it will directly affect the quality of the quartz tube. The core rods of existing melting furnaces are all suspended on the furnace cover, and the length of the core rods is generally greater than 1.5 meters. The wall deviation of the pipe is adjusted by using the tightness of the screws around the furnace cover. There is a high temperature of more than 2200 degrees in the tungsten pot. The thermal expansion coefficient of the tungsten-molybdenum material of the core rod will be deformed due to high temperature, and the instability caused by the downward flow of the quar...

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to design a method for adjusting the wall thickness by adjusting the position of the core rod to solve the problem that the pipe wall thickness is inconsistent due to the offset of the mandrel rod gap in the existing continuous melting furnace during the pipe forming process, which will affect the product quality. Continuous melting furnace with high-precision control of pipe wall deviation

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