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Glass reinforced solution and use thereof

A glass strengthening, solution technology, applied in the field of impact resistance solution, can solve the problems of long time, low impact resistance, glass surface cracks, etc.

Active Publication Date: 2009-04-01
BYD CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In the existing glass chemical strengthening process, the generally used strengthening composition is to add 0.5% potassium carbonate to the molten salt of potassium nitrate and / or potassium nitrite, or add 0.02% potassium phosphate and 0.2% aluminum oxide, Although the strength of the glass can be improved, the strengthening process takes a long time, the surface of the strengthened glass has tiny cracks, and the surface of the glass is uneven, so the impact resistance is low

Method used

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  • Glass reinforced solution and use thereof

Examples

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Effect test

Embodiment 1

[0035] Component content of glass strengthening solution: Potassium silicate 47.5wt% strengthening accelerator 5wt% water 47.5wt%.

[0036] Wherein the strengthening accelerator is a mixture of potassium hydroxide and potassium phosphate trihydrate, wherein potassium hydroxide is 3.84wt% of the strengthening accelerator, and potassium phosphate trihydrate is 96.16wt% of the strengthening accelerator;

[0037] The method of using the above glass strengthening solution to increase the glass strength: immerse the soda lime float glass initially strengthened by strengthening solution II, strengthening solution III and strengthening solution IV respectively in the above glass strengthening solution at a temperature of 60°C for 60 minutes, then wash and dry , that is.

[0038] See Table 1 for the strength of the initially strengthened soda-lime float glass and the strength of the glass after further strengthening using the glass strengthening liquid of the present invention.

Embodiment 2

[0040] Component content of glass strengthening solution: Potassium silicate 10wt% strengthening accelerator 6wt% water 84wt%;

[0041] Wherein strengthening accelerator is potassium hydroxide;

[0042] The method of using the above glass strengthening solution to increase the glass strength: immerse the soda-lime float glass initially strengthened by strengthening solution II, strengthening solution III and strengthening solution IV respectively in the above glass strengthening solution at a temperature of 80°C for 100 minutes, then wash and dry , that is.

[0043] See Table 1 for the strength of the initially strengthened soda-lime float glass and the strength of the glass after further strengthening using the glass strengthening liquid of the present invention.

Embodiment 3

[0045] Component content of glass strengthening solution: Potassium silicate 70wt% strengthening accelerator 2wt% water 28wt%;

[0046] Wherein the strengthening accelerator is potassium phosphate trihydrate;

[0047] The method of using the above glass strengthening solution to increase the glass strength: immerse the soda lime float glass initially strengthened by strengthening solution II, strengthening solution III and strengthening solution IV respectively in the above glass strengthening solution at a temperature of 55°C for 80 minutes, then wash and dry , that is.

[0048] See Table 1 for the strength of the initially strengthened soda-lime float glass and the strength of the glass after further strengthening using the glass strengthening liquid of the present invention.

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Abstract

The invention discloses a glass strengthening solution and the application thereof. The solution comprises potassium silicate, accelerator and water, wherein, the accelerator is potassium hydroxide and / or potassium phosphate. The glass strengthening solution provided by the invention can repair the cracks on the surfaces of the glass after being strengthened primarily, the smoothness of glass surface can be improved greatly, the strengthening process is simple, and raw material is available with low price.

Description

technical field [0001] The invention relates to the chemical strengthening of glass and its application field, in particular to a solution capable of improving the surface flatness of glass after primary strengthening and improving the impact strength of glass. The present invention also relates to a method for further strengthening the preliminarily strengthened glass by using the above glass strengthening solution. Background technique [0002] There are a large number of microcracks on the surface of the glass, which can easily cause stress concentration and cause the glass to break, which seriously affects the tensile strength of the glass. In order to increase the tensile strength of glass, a lot of research has been done on the strengthening process. The chemical strengthening of glass includes high temperature chemical strengthening and low temperature chemical strengthening. Low-temperature chemical strengthening is widely used in production due to its low cost. I...

Claims

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Application Information

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IPC IPC(8): C03C17/22
Inventor 杨会良
Owner BYD CO LTD
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