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Black UV-filtering quartz glass plate and preparation method thereof

A glass plate and quartz technology, applied in glass manufacturing equipment, glass molding, manufacturing tools, etc., can solve the problems of low softening point, low refractive index, small size, etc., and achieve good coloring uniformity, wide light absorption range, and durability strong pressure effect

Active Publication Date: 2013-08-21
LIANYUNGANG HONGYANG QUARTZ PROD
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  • Description
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AI Technical Summary

Problems solved by technology

The current quartz glass plate is only transparent, and the size is small, no more than 200mm. The transparent quartz plate has high light transmittance, low refractive index, poor heating efficiency, low softening point, and cannot work for a long time at a high temperature of 1200°C.

Method used

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Examples

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Embodiment Construction

[0019] A black ultraviolet filter quartz glass plate, with high-purity quartz sand as the basic raw material by weight, and 1% to 4% by weight of trace element additives,

[0020] Using SiO 2 The content is greater than 99.998%, the impurity content is less than 10ppm, and the high-purity quartz sand is 40~140 mesh. SiO 2 The content is a mass percentage, and the impurity content also refers to a mass ratio. When ppm represents the content in solids, it refers specifically to the mass ratio or weight ratio.

[0021] Wherein the trace element additive is made up of the following raw materials of weight ratio:

[0022] Nickel oxide NiO 0.9~1.1 Cobalt trioxide Co 2 o 3 0.1~0.3

[0023] Barium oxide BaO 0.3~0.5 Calcium nitrate Ca (NO 3 ) 2 4H 2 O 0.07~0.09

[0024] Potassium oxide K 2 o 0.8~1.0 Manganese dioxide MnO 2 0.2~0.4

[0025] Sodium Dichromate Na 2 Cr 2 o 7 0.1~0.3.

[0026] The optimal weight portion of trace element additives is 1.75...

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Abstract

The invention discloses a black UV-filtering quartz glass plate, prepared by using high-purity quartz sand as a basic weight portion of raw material, and adding 1-3 % of a weight portion of trace element additives, wherein, the trace element additives comprise NiO, CO2O3, BaO, Ca(NO3)2.4H2O, K2O, MnO2, and Na2Cr2O7. The black UV-filtering quartz glass plate molded by using the quartz plate entirety stain preparation technology has good homogeneity of entirety stain, good toughness, strong compression resistance, and wide light absorption range, and has a softening point of 1650 DEG C, a cut-off wavelength of 3700 cm, and a transmissivity of 57.9 %.

Description

technical field [0001] The invention relates to a preparation technology of quartz glass, in particular to a 350mm wide black ultraviolet filter quartz glass plate. The invention also relates to a preparation method of the quartz tube. Background technique [0002] Quartz glass has a small thermal expansion coefficient, high electrical breakdown strength, strong ultraviolet and infrared penetration properties, high temperature resistance, excellent resistance to rapid cooling and rapid heating, etc., and has been more and more widely used in industrial and civil products. . The current quartz glass plate is only transparent, and the size is small, no more than 200mm. The transparent quartz plate has high light transmittance, low refractive index, poor heating efficiency, low softening point, and cannot work for a long time at 1200°C. Contents of the invention [0003] The technical problem to be solved by the present invention is to address the deficiencies of the prior ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C03C6/04C03C4/02C03B20/00
Inventor 徐传龙张华
Owner LIANYUNGANG HONGYANG QUARTZ PROD
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