Method for reducing microbubbles of alumina silicate glass

A technology of aluminosilicate glass and micro-bubbles, which is applied in the field of preparation of aluminosilicate glass, can solve the problems of small number of bubbles and small diameter of bubbles, and achieve the effect of small number of bubbles and small diameter of bubbles

Active Publication Date: 2015-07-08
(CNBM) BENGBU DESIGN & RES INST FOR GLASS IND CO LTD +1
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Problems solved by technology

[0003] The purpose of this invention is to solve the defect of a certain number of microbubbles existing in the existing aluminosilicate glass, and propose a technical solution to achieve better melting and homogenization effects by using a specific particle size gradation of the batch material to obtain bubbles Aluminosilicate glass with small number and small cell diameter

Method used

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  • Method for reducing microbubbles of alumina silicate glass
  • Method for reducing microbubbles of alumina silicate glass
  • Method for reducing microbubbles of alumina silicate glass

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Embodiment

[0025] 1. Feldspar, silica sand, dolomite, limestone, soda ash, and Glauber's salt are used as raw materials for firing glass. The chemical composition of various raw materials is shown in Table 1.

[0026] Table 1 Chemical composition of raw materials (wt.%)

[0027]

[0028] 2. The composition of the glass oxide to be fired is: SiO 2 65wt.%; Al 2 o 3 14wt.%; MgO 2wt.%; CaO 3wt.%; Na 2 O 13wt.%; K 2 O 2wt.%.

[0029] 3. According to the content of oxides in the above-mentioned glass composition to be fired, calculate the dosage of each batch, and add a certain amount of carbon powder to the batch at the same time. Their dosage is shown in Table 2.

[0030] Table 2 Amount of Batch Materials

[0031] raw material name Feldspar silica sand dolomite limestone soda ash Glauber's salt toner mass (g) 312 52 36.8 1.9 90.8 8 0.24

[0032] 4. Then, select the batch materials according to the following particle size gradation method an...

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Abstract

The invention relates to a method for reducing microbubbles of a piece of alumina silicate glass. The optimal founding and homogenization effects are realized by special grain size distribution of glass batch, the alumina silicate glass with fewer bubbles and small diameter bubbles is obtained, and the use requirement of the special glass for electronic information display is met. Specifically, the granular size of the glass batch such as feldspar, silica sand, dolomite, limestone, sodium carbonate and mirabilite is controlled to be in a specific range, due to the optimization and matching of larger granular raw materials and smaller granular raw materials, the reaction homogeneity and completeness of the batch are realized, the optimal founding effect is realized, and the excellent alumina silicate glass with fewer bubbles and small diameter bubbles is obtained.

Description

technical field [0001] The invention relates to a method for preparing aluminosilicate glass, in particular to a method for reducing microbubbles in aluminosilicate glass by controlling the specific particle size gradation mode of batch materials. Background technique [0002] Bubbles are the most common defects in the glass melting process, which will affect the appearance, transparency, mechanical strength and hardness of glass products. When the glass with a certain amount of microbubbles is used for electronic information display, it will be deadly. Contents of the invention [0003] The purpose of this invention is to solve the defect of a certain number of microbubbles existing in the existing aluminosilicate glass, and propose a technical solution to achieve better melting and homogenization effects by using a specific particle size gradation of the batch material to obtain bubbles Aluminosilicate glass with small quantity and small cell diameter. [0004] The tec...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C03C3/087C03C6/04
Inventor 彭寿王芸马立云崔介东曹欣
Owner (CNBM) BENGBU DESIGN & RES INST FOR GLASS IND CO LTD
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