Yellow filter quartz tube and preparation method thereof

A quartz tube, yellow technology, applied in the field of quartz tube preparation, can solve the problems of low refractive index, high light transmittance, poor uniformity, etc., and achieve the effects of stable filter performance, large light absorption range and good uniformity.

Inactive Publication Date: 2010-05-19
徐传龙
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  • Abstract
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  • Application Information

AI Technical Summary

Problems solved by technology

At present, there are two types of quartz glass tubes: transparent and milky white. Transparent quartz glass tubes have high light transmittance, low refractive index, and poor heating efficiency; milky white quartz glass tubes use air bubbles as the dispersed phase, although they heat up quickly. , but its uniformity is poor

Method used

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Embodiment Construction

[0018] A yellow filter quartz tube, canary yellow in color. Using SiO 2 The content is greater than 99.98%, the impurity content is less than 20ppm, and the high-purity quartz sand is 40-160 mesh. High-purity quartz sand is used as the basic raw material by weight, and 0.7% to 1.35% by weight of coloring agent is added.

[0019] Wherein the coloring agent is made up of the following raw materials of weight ratio:

[0020] Boron trioxide B 2 o 3 0.2~0.4 Zinc oxide ZnO 0.1~0.2

[0021] Potassium oxide K 2 O 0.1~0.14 Sodium oxide Na 2 O 0.01~0.05

[0022] Europium trioxide Eu 2 o 3 0.1~0.2 Titanium dioxide TiO 2 0.1~0.2.

[0023] The optimum weight portion of the coloring agent is 0.81%-0.9% of the high-purity quartz sand.

[0024] Colorant formula one:

[0025] Boron trioxide B 2 o 3 0.4 Zinc oxide ZnO 0.2

[0026] Potassium oxide K 2 O 0.14 Sodium oxide Na 2 O 0.05

[0027] Europium trioxide Eu 2 o 3 0.2 Titanium dioxide TiO 2 0.2.

[0028] ...

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Abstract

The invention relates to a yellow filter quartz tube which is prepared by using high purity quartz sand as basic raw materials in parts by weight, and compounding with 0.7-1.35 parts by weight of colorant, wherein the colorant comprises diboron trioxide (B2O3), zinc oxide (ZnO), potassium oxide (K2O), sodium oxide (Na2O), europium sesquioxide (Eu2O3) and titanium dioxide (TiO2). The yellow filter quartz tube molded by drawing through adopting a tube wall integral coloring preparation process has good uniformity, high temperature resistance, stable filter performance and large light absorption range, and the absorbed cutoff wavelength can reach 420 nanometers. A tube material is not deformed at the temperature of 1600 DEG C, and when the thickness of the quartz tube is 1+ / -0.5 millimeters, the spectral transmission rate is about 63 percent and the light wavelength is 540-620 nanometers.

Description

technical field [0001] The invention relates to a preparation technology of a quartz tube, in particular to a yellow filter quartz tube. The invention also relates to a preparation method of the quartz tube. Background technique [0002] The thermal expansion coefficient of quartz glass is small, and it has the characteristics of high temperature resistance, ultraviolet and infrared transmission, and has been more and more widely used in industrial and civilian products. At present, there are two types of quartz glass tubes: transparent and milky white. Transparent quartz glass tubes have high light transmittance, low refractive index, and poor heating efficiency; milky white quartz glass tubes use air bubbles as the dispersed phase, although they heat up quickly. , but its uniformity is poor. Contents of the invention [0003] The technical problem to be solved by the present invention is to propose a yellow light filter quartz tube with good overall coloring uniformity...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C03C1/04C03B20/00
Inventor 徐传龙
Owner 徐传龙
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