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Reinforcing method for glass and high-strength glass

A glass reinforcement and high-strength technology, applied in glass tempering, glass manufacturing equipment, manufacturing tools, etc., can solve unsatisfactory problems, achieve the effect of avoiding equipment investment, expanding application fields, and enriching glass reinforcement methods

Inactive Publication Date: 2019-10-18
CHINA BUILDING MATERIALS ACAD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the current traditional physical tempering method has reached its limit for increasing the strength of glass. The strength of glass tempered by this method can only meet the supporting needs of ordinary manufacturing industries, but cannot meet the application under special conditions such as high speed, high pressure and high temperature. Therefore, It is urgent to break through the technical limitations of existing glass physical tempering

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0046] Use the following weight percentage components: 60% SiO 2 ;14%Al 2 o 3;3.5%B 2 o 3 ;5%MgO;5%BaO;11%CaO;1%ZrO 2 and 0.5% Sb 2 o 3 Made of high-quality glass, the size is 130×26×19mm, all surfaces are polished, and there are no defects such as bubbles, streaks and stones inside.

[0047] Put the processed glass into the heating furnace, raise the temperature to 900°C at a heating rate of 5°C / min, keep it warm for 30 hours for microcrystallization treatment, then raise the heating furnace to 940°C at a heating rate of 10°C / min, and hold it for 10 minutes , quickly move the glass out of the heating furnace, put it on the support in the wind field for horizontal rotation and cooling, the rotation speed is 80rpm, the wind pressure is 0.12MPa, and the glass is taken out of the wind field after 4min. Apparent quality testing shows that the tempered glass has no deformation in appearance, and the apparent quality is good. After testing, the bending strength of the glass ...

Embodiment 2

[0049] Use the following weight percentage components: 35% SiO 2 ;17%Al 2 o 3 ;2%B 2 o 3 ;5%MgO;2%BaO;1.5%ZnO;1%TiO 2 ; 3.5% ZrO 2 ;12% La 2 o 3 ;20%Y 2 o 3 and 1% Sb 2 o 3 Made of high-quality glass, the size is 130×26×19mm, all surfaces are polished, and there are no defects such as bubbles, streaks and stones inside.

[0050] Put the processed glass into the heating furnace, raise the temperature to 950°C at a heating rate of 10°C / min, keep it warm for 20 hours for microcrystallization treatment, then raise the heating furnace to 1020°C at a heating rate of 20°C / min, and hold it for 30 minutes , quickly move the glass out of the heating furnace, put it on the support in the wind field for horizontal rotation and cooling, the speed is 40rpm, the wind pressure is 0.25MPa, and the glass is taken out of the wind field after 2min. Apparent quality testing shows that the tempered glass has no deformation in appearance, and the apparent quality is good. After testing,...

Embodiment 3

[0052] Use the following weight percentage components: 32% SiO 2 ;15%Al 2 o 3 ;3%B 2 o 3 ; 8% MgO; 2% SrO; 2% BaO; 3% HfO 2 ; 9% ZrO 2 ; 10.5% La 2 o 3 ;15%Y 2 o 3 and 0.5% Sb 2 o 3 Made of high-quality glass, the size is 130×26×19mm, all surfaces are polished, and there are no defects such as bubbles, streaks and stones inside.

[0053] Put the processed glass into the heating furnace, raise the temperature up to 920°C at a heating rate of 8°C / min, hold it for 25 hours for microcrystallization treatment, then raise the heating rate of the heating furnace to 1040°C at a heating rate of 15°C / min, and hold it for 20 minutes , quickly move the glass out of the heating furnace, put it on the support in the wind field for horizontal rotation and cooling, the rotation speed is 60rpm, the wind pressure is 0.2MPa, and the glass is taken out of the wind field after 4min. Apparent quality testing shows that the tempered glass has no deformation in appearance, and the apparen...

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Abstract

The invention mainly aims to provide a reinforcing method for glass and high-strength glass. The method comprises the following steps: 1) placing the glass in a heating furnace, performing primary heating, and performing primary heat preservation to microcrystallize the glass; and 2) performing secondary heating on the glass in the heating furnace, and performing secondary heat preservation to physically temper the glass. The high-strength glass prepared by the reinforcing method for the glass has bending strength of >=320 MPa and thermal shock resistance of >=320 DEG C. According to the method provided by the invention, microcrystallization is performed on the glass, physical tempering is performed on the glass, so that composite strengthening of the two technical means is realized, and the glass structures of the microcrystallization and the physical tempering interact with each other and have a synergistic effect; and the method is suitable for production of a plurality of small batches of glass, and more suitable for practical applications.

Description

technical field [0001] The invention relates to the technical field of special glass processing, in particular to a glass strengthening method and high-strength glass. Background technique [0002] Due to the inherent irregular structure, glass has excellent optical and thermal properties and processability, but glass is a typical brittle material, and its bending strength is low, which largely restricts the application of glass, so improving the strength It has always been the key research and development direction in the glass field. [0003] At present, there are many ways to improve the strength of glass, and the most widely used strengthening method is glass tempering. In glass tempering enhancement technology, physical tempering is mainly aimed at thicker glass, such as liquid level gauges, windows, lenses, etc. Its bending strength can reach up to 200MPa, and it has attracted much attention in the fields of chemical industry, electric power, construction, and transpo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C03B32/02C03B27/044C03B27/012C03C3/093C03C3/068
CPCC03B27/012C03B27/044C03B32/02C03C3/068C03C3/093
Inventor 王衍行祖成奎何坤陈江
Owner CHINA BUILDING MATERIALS ACAD