Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

A tempering process to reduce the self-explosion rate of glass

A glass, self-explosion technology, applied in the field of glass tempering, can solve the problems of micro-cracks on the glass surface, long tempering time, uneven ion diffusion speed, etc., to reduce energy consumption and improve tempering efficiency.

Active Publication Date: 2021-11-19
中建材(蚌埠)光电材料有限公司
View PDF0 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] With the rapid development of the tempered glass industry, there are still various technical problems in the glass tempering process that have not been solved: the tempering time is long, the long-term high-temperature tempering makes the energy consumption too high, and the high ion exchange temperature leads to molten salt heat. Decomposition will reduce the mechanical strength of tempered glass and reduce the ion exchange temperature, which will lead to incomplete ion exchange and inability to achieve complete tempering, low ion exchange capacity and small ion exchange depth; uneven ion diffusion speed will cause micro cracks on the glass surface High self-explosion rate during the process

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] A kind of tempering technique for reducing the self-explosion rate of glass, it is characterized in that, carry out according to the following steps:

[0024] (1) Cut the original glass sheet into glass sheets with a thickness of 1 mm and a size of 60 mm × 35 mm, then polish and polish the upper and lower surfaces of the glass sheet, and ultrasonically clean with deionized water. The original glass sheet is soda lime silicate Glass, in which the mass proportion of each main component is SiO 2 : 72.5%, Na 2 O: 15%, CaO: 9%;

[0025] (2) Add KMnO with a concentration of 0.1 mol / L to the glass slide after ultrasonic cleaning 4 The solution was sealed and heated to 70°C, kept for 3 hours, then the glass pieces were filtered out and washed with high-purity water;

[0026] (3) In KMnO 4 Add K with a concentration of 2 mol / L to the hydrothermally treated glass flakes 2 Cr 2 O 7 The solution was sealed and heated to 120°C, kept for 3h, and then the glass pieces were filt...

Embodiment 2

[0031] A kind of tempering technique for reducing the self-explosion rate of glass, it is characterized in that, carry out according to the following steps:

[0032](1) Cut the original glass sheet into glass sheets with a thickness of 1 mm and a size of 60 mm × 35 mm, then polish and polish the upper and lower surfaces of the glass sheet, and ultrasonically clean with deionized water. The original glass sheet is soda lime silicate Glass, in which the mass proportion of each main component is SiO 2 : 72.5%, Na 2 O: 15%, CaO: 9%;

[0033] (2) Add KMnO with a concentration of 1 mol / L to the glass slide after ultrasonic cleaning 4 The solution was sealed and heated to 100 ° C, kept for 2 hours, and then the glass pieces were filtered out and washed with high-purity water;

[0034] (3) In KMnO 4 Add K at a concentration of 4 mol / L to the hydrothermally treated glass flakes 2 Cr 2 O 7 The solution was sealed and heated to 140°C, kept for 2 hours, and then the glass pieces we...

Embodiment 3

[0039] A kind of tempering technique for reducing the self-explosion rate of glass, it is characterized in that, carry out according to the following steps:

[0040] (1) Cut the original glass sheet into glass sheets with a thickness of 1 mm and a size of 60 mm × 35 mm, then polish and polish the upper and lower surfaces of the glass sheet, and ultrasonically clean with deionized water. The original glass sheet is soda lime silicate Glass, in which the mass proportion of each main component is SiO 2 : 72.5%, Na 2 O: 15%, CaO: 9%;

[0041] (2) Add KMnO with a concentration of 0.5 mol / L to the glass pieces after ultrasonic cleaning 4 The solution was sealed and heated to 80°C, kept for 2.5h, then the glass pieces were filtered out and washed with high-purity water;

[0042] (3) In KMnO 4 Add K with a concentration of 3 mol / L to the hydrothermally treated glass flakes 2 Cr 2 O 7 The solution was sealed and heated to 130°C, kept for 2.5h, and then the glass pieces were filt...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
flexural strengthaaaaaaaaaa
flexural strengthaaaaaaaaaa
flexural strengthaaaaaaaaaa
Login to View More

Abstract

A tempering process for reducing the self-explosion rate of glass, which is characterized in that: after the original glass sheet is pretreated, the KMnO 4 solution and K 2 Cr 2 o 7 Carry out hydrothermal treatment in the solution, and then microwave heat treatment in potassium hydroxide aqueous solution with a mass concentration of 0.2~0.4%. In salt, conduct ion exchange at 350~390°C for 1~4h, then cool at 1~2°C / min to 200~230°C, and then cool with the furnace. The present invention completes glass tempering at a relatively low temperature and within a short period of time, greatly improving tempering efficiency and reducing energy consumption; in addition, the self-explosion rate of tempered glass in the present invention is as low as 0.04%, and Na + The exchange capacity reaches 82.4~85.6%, the ion exchange depth reaches 139~155μm; the bending strength reaches 607~641MPa.

Description

technical field [0001] The invention relates to the technical field of glass tempering, in particular to a tempering process for reducing the self-explosion rate of glass. Background technique [0002] Glass is a kind of transparent solid material that is widely used in living room or architectural design, industry, military, energy production, ecological environment, modern communication technology, etc. The main component of soda lime silicate glass is Na 2 O·CaO·6SiO 2 , the main component of borosilicate glass is Na 2 O, B 2 O 3 and SiO 2 , the main component is silica. In order to improve the strength of glass, ordinary glass is usually tempered to improve its various properties, thereby expanding its application range. Tempered glass is a kind of pre-stressed glass, which is to form compressive stress on the surface of the lunar calendar by physical or chemical methods of ordinary glass. When the glass is subjected to external force, it first offsets the surface ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): C03C21/00
CPCC03C21/002
Inventor 周永生徐少春靳盼汪徐春高玉静张雪梅周化光
Owner 中建材(蚌埠)光电材料有限公司
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com