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Formula and preparation method of structurally-enhanced high refractive index oxide glass

A technology of oxide glass and high refractive index, which is applied in glass forming, glass manufacturing equipment, manufacturing tools, etc. It can solve the problems of unfavorable glass product production process control, reduction of visible light transmittance, and deterioration of glass physical and chemical properties. Achieve the effects of improving physical and chemical properties, easy process control, and high refractive index

Active Publication Date: 2018-11-13
SHANDONG KANGYOU GLASS MATERIAL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the strong phase separation characteristics of high-valent oxides in the glass, when the content of these oxides is large, it is easy to induce phase separation in the glass. Typical oxides such as TiO 2 and ZrO 2 , and the existence of the phase separation interface will cause light scattering loss and reduce the transmittance of visible light, which will lead to the "devitrification" of the glass in severe cases
On the other hand, from the perspective of the classification of oxides, these high-valent oxides (such as lanthanide oxides) mainly act as modifiers in glass, that is, they play the role of "broken network", which often makes the "material properties" of glass melt "Shorter is not conducive to the production process control of glass products. Correspondingly, the physical and chemical properties of the glass are also deteriorated due to the excessive content of modifiers.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] The parts by weight of raw materials used consist of:

[0019] 39.40 parts of quartz sand, 7.71 parts of diammonium hydrogen phosphate, 27.53 parts of soda ash, 5.16 parts of barium carbonate, 4.78 parts of magnesium oxide, 5.03 parts of zinc oxide, and 28.00 parts of tetraterbium heptoxide.

[0020] The weight percentage (wt%) of the active ingredients of the raw materials used is: SiO 2 38.83,P 2 o 5 4.08 ,Na 2 O15.94, BaO4.10, MgO4.68, ZnO4.98, Tb 2 o 3 27.40;

[0021] The specific steps of the manufacturing method are as follows:

[0022] (1) After mixing the above raw materials evenly, melt and homogenize them in an electric melting furnace at 1530°C to obtain a glass melt;

[0023] (2) Let the glass melt flow to the working part through the material channel, and let the glass melt flow to the working part, and the temperature drops to 1220 ° C. At this time, the viscosity of the glass melt is 10 2.2 Pa.s, and then continuously cast on a mold at a temper...

Embodiment 2

[0025] The parts by weight of raw materials used consist of:

[0026] 39.84 parts of quartz sand, 7.94 parts of diammonium hydrogen phosphate, 28.07 parts of soda ash, 4.98 parts of barium carbonate, 3.08 parts of magnesium oxide, 5.15 parts of zinc oxide, and 28.45 parts of tetraterbium heptoxide.

[0027] The weight percentage (wt%) of the active ingredients of the raw materials used is: SiO 2 39.64,P 2 o 5 4.20, Na 2 O 16.25, BaO 3.95, MgO 3.02, ZnO 5.10, Tb 2 o 3 27.84;

[0028] The specific steps of the manufacturing method are as follows:

[0029] (1) After mixing the above raw materials evenly, melt and homogenize them in an electric melting furnace at 1555°C to obtain a glass melt;

[0030] (2) Let the glass melt flow to the working part through the material channel, and let the glass melt flow to the working part, and the temperature drops to 1230 ° C. At this time, the viscosity of the glass melt is 10 2.2 Pa.s, and then continuously cast on a mold with a ...

Embodiment 3

[0032] The parts by weight of raw materials used consist of:

[0033]38.97 parts of quartz sand, 7.70 parts of diammonium hydrogen phosphate, 27.49 parts of soda ash, 2.44 parts of barium carbonate, 1.01 parts of magnesium oxide, 11.06 parts of zinc oxide, and 27.97 parts of tetraterbium heptoxide.

[0034] The weight percentage (wt%) of the active ingredients of the raw materials used is: SiO 2 38.78,P 2 o 5 4.07, Na 2 O 15.91, BaO 1.94, MgO 0.99, ZnO 10.94, Tb 2 o 3 27.37;

[0035] The specific steps of the manufacturing method are as follows:

[0036] (1) After mixing the above raw materials evenly, melt and homogenize them in an electric melting furnace at 1565°C to obtain a glass melt;

[0037] (2) Let the glass melt flow to the working part through the material channel, and let the glass melt flow to the working part, and the temperature will drop to 1245 ° C. At this time, the viscosity of the glass melt is 10 2.2 Pa.s, and then continuously cast on a mold wi...

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PUM

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Abstract

The invention discloses a formula and a preparation method of structurally-enhanced high refractive index oxide glass. The method comprises the steps of evenly mixing raw materials, i.e., quartz sand,diammonium hydrogen phosphate, sodium carbonate, barium carbonate, magnesium oxide, zinc oxide and tetraterbium heptaoxide, melting the mixture at 1530-1580 DEG C, and homogenizing to obtain glass melt; (2) enabling the glass melt to flow to a working part, and cooling the glass melt to 1220-1250 DEG C after the glass melt flows to the working part; after that, continuously pouring the glass meltonto a mould to obtain a glass board; then, annealing and cooling the glass board to obtain the structurally-enhanced high refractive index oxide glass. The prepared oxide glass is high in structuralstrength and refractive index, good in physical properties, and easy in process control.

Description

technical field [0001] The invention relates to the technical field of new glass materials, in particular to a formula and method for preparing structurally reinforced high-refractive index oxide glass. Background technique [0002] With the rapid development of modern optics and optoelectronics, optical materials have also achieved rapid development. Among them, optical glass is the foundation and an important part of the optoelectronic technology industry. In the past two decades, the application of optical glass as the basic material of optoelectronics in the three major fields of optical transmission, optical storage and optoelectronic display has advanced by leaps and bounds, and has become an important part of optoelectronic information technology. One of the basic conditions for development, especially as a lens. Optical glass with high refractive index can not only achieve a given magnification, but also reduce the thickness of its edge or center, thereby reducing t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C03C6/04C03B19/02C03B25/00
CPCC03B19/02C03B25/00C03C1/00
Inventor 刘树江李传锡
Owner SHANDONG KANGYOU GLASS MATERIAL CO LTD