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High-uniformity optical glass and preparation method thereof

An optical glass and homogeneity technology, applied in glass manufacturing equipment, glass pressing, glass production, etc., can solve the problem of poor devitrification resistance and chemical stability of optical glass, no UV shielding effect, and easy chemical change of optical glass. and other problems, to achieve stable optical properties, good UV shielding effect, and shorten the melting time.

Pending Publication Date: 2022-05-27
湖北省椿丰光电科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Aiming at the deficiencies of the prior art, the present invention provides a method for preparing optical glass with high uniformity, which solves the problem of long melting time and weak adhesion in the preparation process of optical glass, which makes the optical glass prone to chemical changes and does not have ultraviolet shielding. Function The heat resistance and transparency of the optical glass currently used in the market are not good, the devitrification resistance and chemical stability of the optical glass are poor, the mechanical properties are poor, and it is not conducive to improving the chromatic aberration of the optical system

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] A preparation method of high uniformity optical glass, specifically comprising the following steps:

[0029] Step 1. Proportion raw materials: Weigh the glass raw materials according to the weight percentage, silica 60%, sodium carbonate 18%, calcium carbonate 5.5%, potassium carbonate 5.5%, titanium oxide 2%, boric acid 8%, antimony trioxide 1% and 1.9% of barium carbonate, then put the weighed raw materials into the mixing equipment in turn, and fully stir and mix all the raw materials.

[0030] Step 2, prepare glass: the glass raw material is continuously or intermittently put into the melting chamber of the melting tank, the glass raw material is melted after being burned and is continuously heated for a period of time, and the heating time is continuously stirred by the stirring device, and after the stirring is completed, it flows out from the melting discharge port. It is introduced into the clarifier for heating or cooling to eliminate air bubbles and other oper...

Embodiment 2

[0033] Step 1. Proportion raw materials: Weigh the glass raw materials according to the weight percentage, silica 63%, sodium carbonate 15%, calcium carbonate 7.5%, potassium carbonate 2.5%, titanium oxide 2.5%, boric acid 7.5%, antimony trioxide 1.7%, barium carbonate 1.2%, then put the weighed raw materials into the mixing equipment in turn, and fully stir and mix all the raw materials.

[0034] Step 2, prepare glass: the glass raw material is continuously or intermittently put into the melting chamber of the melting tank, the glass raw material is melted after being burned and is continuously heated for a period of time, and the heating time is continuously stirred by the stirring device, and after the stirring is completed, it flows out from the melting discharge port. It is introduced into the clarifier for heating or cooling to eliminate air bubbles and other operations, and then it is introduced into the discharge tank for glass stripe treatment.

[0035] Step 3, glass ...

Embodiment 3

[0037] Step 1. Proportion of raw materials: Weigh the glass raw materials according to the weight percentage, 65% of silicon dioxide, 13% of sodium carbonate, 8% of calcium carbonate, 2% of potassium carbonate, 3% of titanium oxide, 7% of boric acid, and antimony trioxide. 1.9% and 0.1% of barium carbonate, then put the weighed raw materials into the mixing device in turn, and fully stir and mix all the raw materials.

[0038] Step 2, prepare glass: the glass raw material is continuously or intermittently put into the melting chamber of the melting tank, the glass raw material is melted after being burned and is continuously heated for a period of time, and the heating time is continuously stirred by the stirring device, and after the stirring is completed, it flows out from the melting discharge port. It is introduced into the clarifier for heating or cooling to eliminate air bubbles and other operations, and then it is introduced into the discharge tank for glass stripe treat...

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Abstract

The invention discloses high-uniformity optical glass and a preparation method, and relates to the technical field of optical glass, the optical glass has the characteristics of optimal opaqueness, optimal whiteness, optimal brightness and the like, has strong adhesive force, is not easy to generate chemical change, has a very high melting point, also has a relatively good ultraviolet shielding effect, and can be used for preparing optical glass. The boric acid can improve the heat resistance and transparency of the optical glass, improve the mechanical strength and shorten the melting time, and the optical glass is excellent in performance, has the characteristics of high refractive index and high dispersion, has stable optical properties and high optical uniformity, and has the advantages of high temperature resistance, low expansion coefficient, high mechanical strength, good chemical performance and the like; the optical glass is excellent in devitrification performance, devitrification resistance, chemical stability and mechanical performance and high in transmittance, the chromatic aberration of an optical system is improved, the preparation method of the optical glass is simple and easy to implement, and batch production is easy to achieve.

Description

technical field [0001] The invention relates to the technical field of optical glass, in particular to a high uniformity optical glass and a preparation method. Background technique [0002] Glass is an amorphous inorganic non-metallic material, generally made of a variety of inorganic minerals (such as quartz sand, borax, boric acid, barite, barium carbonate, limestone, feldspar, soda ash, etc.) as the main raw material, and a small amount of auxiliary raw materials are added. of. Its main components are silica and other oxides. The chemical composition of ordinary glass is Na2SiO3, CaSiO3, SiO2 or Na2O·CaO·6SiO2, etc. The main component is silicate double salt, which is an amorphous solid with random structure. It is widely used in buildings to block wind and light, and belongs to the mixture. There are also colored glass mixed with oxides or salts of certain metals to show color, and tempered glass obtained by physical or chemical methods. Sometimes some transparent p...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C03C6/04C03B19/02C03B11/00C03C1/00C03C4/08
CPCC03C1/00C03B19/02C03B11/00C03C4/085Y02P40/57
Inventor 殷朋涛
Owner 湖北省椿丰光电科技有限公司
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