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Red infrared-penetrating quartz tube and preparation method thereof

An infrared-transmitting, quartz tube technology, applied in glass manufacturing equipment, manufacturing tools, glass molding and other directions, can solve the problems of poor heating efficiency, high light transmittance, low refractive index, etc., to achieve wide light absorption range, filter light Stable performance and good uniformity

Active Publication Date: 2010-06-02
LIANYUNGANG HONGYANG QUARTZ PROD
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  • Abstract
  • Description
  • Claims
  • 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

[0020] A red infrared-transmitting quartz tube, 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 8% to 10% by weight of colorant is added.

[0021] Wherein the coloring agent is made up of the following raw materials of weight ratio:

[0022] Cuprous oxide Cu 2 O 0.1~0.5 Manganese dioxide MnO 2 1~3

[0023] Selenium Se 0.5~1 Cadmium sulfate octahydrate 3Cd 2 SO 4 ·8H 2 O 1~2

[0024] Aluminum hydroxide Al(OH) 3 0.5~1

[0025] SnCl dihydrate SnCl 2 2H 2 O 0.2~0.6

[0026] Samarium Chloride SmCl 3 1~2 antimony oxide Sb 2 o 3 1~2.

[0027] The optimum weight portion of the coloring agent is 9%-9.5% of the high-purity quartz sand.

[0028] The formula one of coloring agent:

[0029] Cuprous oxide Cu 2 O 0.5 Manganese dioxide MnO 2 3

[0030] Selenium Se 1 Cadmium Sulfate Octahydrate 3Cd 2 SO...

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Abstract

The invention discloses a red infrared-penetrating quartz tube. Highly-pure arenaceous quartz is used as a basic material in part by weight, and 8-10% of colorant by weight is added, wherein the colorant comprises cuprous oxide (Cu2O), manganese dioxide (MnO2), selenium (Se), cadmium sulfate octahydrate (3Cd2SO4.8H2O), aluminium hydroxide (Al(OH)3), stannous chloride dehydrate (SnCl2.2H2O), samarium chloride (SmCl3) and antimony oxide (Sb2O3). The red infrared-penetrating quartz tube which is formed by drawing by adopting a preparation technique for tube wall integral coloring has favorable uniformity and toughness, strong compression resistance and wide light-absorbing range, has the characteristics of high temperature resistance and stable filtering property, and absorbs visible light and penetrates the near infrared ray of 800-2500nm. The invention has the spectral characteristics of 400nm penetration rate T being less than or equal to 14%, 700nm penetration rate T being less than or equal to 6.0% and 1100nm penetration rate T being more than or equal to 85.0% when the thickness of a sample is 1.0 mm.

Description

technical field [0001] The invention relates to a preparation technology of a quartz tube, in particular to a red infrared-transmitting 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 address the deficiencies of the prior art, and propose a red infrar...

Claims

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Application Information

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IPC IPC(8): C03C4/10C03C3/06C03B20/00
Inventor 徐传龙
Owner LIANYUNGANG HONGYANG QUARTZ PROD
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