Glass toughening liquid and glass toughening treatment method

A glass tempering and treatment method technology, applied in the field of glass tempering, can solve the problems of affecting the tensile strength of glass, unstable performance, glass microcracks, etc., and achieve the effect of improving glass strengthening effect, good heat resistance, and improving surface strength

Inactive Publication Date: 2018-12-14
安徽朗旭玻璃器皿有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the existing chemical tempered glass has a long production cycle (exchanging time is as long as tens of hours), low efficiency, high production cost, and unstable performance. A large number of microcracks are prone to appear on the glass surface after strengthening, which is easy to cause stress concentration and damage Causes the glass to crack and seriously affects the tensile strength of the glass

Method used

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  • Glass toughening liquid and glass toughening treatment method

Examples

Experimental program
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Effect test

Embodiment 1

[0021] A method for tempering glass, comprising the steps of:

[0022] S1, preheating the glass at 630°C;

[0023] S2. Soak the preheated glass obtained in step S1 in the glass stiffening solution, the strengthening temperature is 380°C, and heat preservation reaction;

[0024] S3, performing annealing treatment on the tempered glass obtained in step S2, and air cooling to obtain tempered glass;

[0025] Among them, the glass tempering liquid is composed of 65 parts of potassium nitrate, 15 parts of diethanolamine borate, 5 parts of N-methyldiethanolamine, 8 parts of cerous nitrate, and 3 parts of magnesium oxide.

Embodiment 2

[0027] A method for tempering glass, comprising the steps of:

[0028] S1. Preheating the glass at 680°C;

[0029] S2. Soak the preheated glass obtained in step S1 in the glass stiffening solution, the strengthening temperature is 420°C, and the heat preservation reaction is 2 hours;

[0030] S3, performing annealing treatment on the tempered glass obtained in step S2 at 200° C., and the annealing time is 60 minutes and air cooling to obtain tempered glass;

[0031] Among them, the glass tempering liquid is composed of 80 parts of potassium nitrate, 5 parts of diethanolamine borate, 8 parts of N-methyldiethanolamine, 2 parts of cerous nitrate, and 5 parts of magnesium oxide.

Embodiment 3

[0033] A method for tempering glass, comprising the steps of:

[0034] S1, preheating the glass at 650°C;

[0035] S2. Soak the preheated glass obtained in step S1 in the glass stiffening solution, the strengthening temperature is 400°C, and the heat preservation reaction is 5 hours;

[0036] S3, performing annealing treatment on the strengthened glass obtained in step S2 at 290° C., and the annealing time is 180 minutes in air cooling to obtain tempered glass;

[0037] Among them, the glass tempering liquid is composed of potassium nitrate, diethanolamine borate, N-methyldiethanolamine, cerous nitrate, magnesium oxide, Al 2 o 3 and Sb 2 o 3 Composition, the weight ratio of potassium nitrate, diethanolamine borate, N-methyldiethanolamine, cerous nitrate, magnesium oxide is 70:13:6:6:4, potassium nitrate, diethanolamine borate, N-methyldiethanolamine The weight percentage of the total amount of base diethanolamine, cerous nitrate, and magnesium oxide in glass tempering liq...

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Abstract

The invention discloses glass toughening liquid. The glass toughening liquid is prepared from the following raw materials in parts by weight: 65 to 80 parts of potassium nitrate, 5 to 15 parts of diethanolamine borate, 5 to 8 parts of N-methyl diethanolamine, 2 to 8 parts of cerous nitrate and 3 to 5 parts of magnesium oxide. The invention also discloses a glass toughening treatment method which comprises the following steps: S1, carrying out preheating treatment on glass; S2, soaking the pretreated glass obtained the S1 into any one of glass toughening liquid in claims 1 to 4, keeping the strengthening temperature at 380 to 420 DEG C and carrying out thermal reaction; S3, carrying out annealing treatment on the toughened glass obtained in the S2 and carrying out air cooling to obtain thetoughened glass. The glass toughening treatment method disclosed by the invention has the advantages that the components and the use amount of the glass toughening liquid are optimized and the strengthening time is shortened; meanwhile, the depth of a stress layer is significantly increased and the surface strength of the glass is improved.

Description

technical field [0001] The invention relates to the technical field of glass tempering, in particular to a glass tempering liquid and a glass tempering treatment method. Background technique [0002] Chemical toughening (also known as ion exchange) can effectively increase the surface stress and bending strength of glass. It is one of the effective strengthening methods for thin glass and its products. The sodium ions on the surface exchange with the potassium ions in the potash tank. However, the existing chemical tempered glass has a long production cycle (exchanging time is as long as tens of hours), low efficiency, high production cost, and unstable performance. A large number of microcracks are prone to appear on the glass surface after strengthening, which is easy to cause stress concentration and damage The glass cracks, seriously affecting the tensile strength of the glass. Contents of the invention [0003] The invention proposes a glass tempering liquid and a g...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C03C21/00
CPCC03C21/002
Inventor 彭春奎
Owner 安徽朗旭玻璃器皿有限公司
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