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Processing technology for reducing spontaneous explosion rate of tempered glass

A processing technology and tempered glass technology, applied in the direction of glass tempering, glass manufacturing equipment, glass/slag layered products, etc., can solve the problems of uneven stress distribution, warping and fracture, and achieve uniform stress distribution and reduced self-explosion rate. , the effect of low possibility of self-destruction

Pending Publication Date: 2022-01-11
张家港市强达玻璃有限公司
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  • Abstract
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The above-mentioned processing technology can be preheated to avoid the uneven stress distribution of the glass substrate during the tempering process, resulting in curling and fracture.

Method used

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  • Processing technology for reducing spontaneous explosion rate of tempered glass

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] A method of reducing the rate of glass blew process, comprising the steps of:

[0038] Sl, pre-glass substrate: glass substrate and selected according to production requirements, a cutting process of the glass base material; cutting the glass substrate after edging and cleaning; then the glass substrate was immersed in a nitrate solution (mass ) fraction of 40% sodium nitrite solution, taken out and placed in a high temperature oven at a rate of 10 ℃ / min heating to 500 ℃ preheating, the preheating time: the glass substrate (glass substrate selection of 4mm the thickness of metal), is heated in accordance with 80s / mm, to obtain a pre-heated glass substrate;

[0039] S2, tempering process: the pre-S1 is transferred to a glass substrate heated steel convection oven heated to 780 ℃ 420s and held, and then the glass substrate is conveyed to the gate of wind, cold air pressure of 15kPa glass cooling substrate, cooled to 220 deg.] C to continue after the water cooling 30 ℃, i....

Embodiment 2

[0043] A processing process that reduces the self-explosion rate of tempered glass, including the following steps:

[0044] S1, glass substrate pretreatment: Select the glass substrate and cut the glass substrate according to the production requirements; the glass substrate is cut back, and the glass substrate is pulsed; and the glass substrate is immersed in nitrate solution (quality) In the potassium nitrate aqueous solution of the fraction of 40%, it is taken in a high temperature furnace and then warmed up to 550 ° C in a rate of 30 ° C / min, preheating, preheating, according to the glass substrate (selected 4 mm glass base The thickness of the material is heated according to 60S / mm, which is preheated glass substrate;

[0045] S2, tempered treatment: transfer the preheated glass substrate in S1 into the convection steel furnace, warmed to 820 ° C and retain 300s, and then transport the glass substrate into the grating, refrigerated into a cold air of 17 kPa. The substrate ...

Embodiment 3

[0049] A processing process that reduces the self-explosion rate of tempered glass, including the following steps:

[0050] S1, glass substrate pretreatment: Select the glass substrate and cut the glass substrate according to the production requirements; the glass substrate is cut back, and the glass substrate is pulsed; and the glass substrate is immersed in nitrate solution (quality) In a 40% nitrate solution), it is preheated after the high temperature furnace is taken in a high temperature furnace and the rate of 15 ° C / min is raised to 520 ° C for preheating, and the preheated time is: according to the glass substrate (selected 4 mm glass base) The thickness of the material is heated according to 70s / mm, and the preheated glass substrate is obtained;

[0051] S2, tempered treatment: transfer the preheated glass substrate in S1 into the convection steel furnace, warmed to 800 ° C and retain 360s, and then transport the glass substrate into the grating, cold air to cold air...

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Abstract

The invention relates to the technical field of glass materials, in particular to a processing technology for reducing the spontaneous explosion rate of tempered glass, which comprises the following steps: pretreating a glass substrate; carrying out tempering treatment; carrying out hot dipping treatment; and performing explosion-proof treatment. The problem that in the prior art, the spontaneous explosion rate of tempered glass is high is solved. According to the processing technology, through preheating, the problem that the glass substrate is curled and broken due to uneven stress distribution in the tempering process can be avoided. Hot dipping treatment and anti-explosion treatment are performed after tempering treatment, so that the possibility of spontaneous explosion of a finished product is reduced. The finally prepared tempered glass has the advantages of high strength, uniform stress distribution and low spontaneous explosion possibility.

Description

Technical field [0001] Technical Field The present invention relates to a glass material, particularly to a glass blew rate reduction process. Background technique [0002] Tempered glass is safety glass. Tempered glass is a kind of prestressed glass, to improve the strength of the glass, usually a chemical or physical method, a compressive stress is formed on the surface of the glass, the glass is first offset surface stress external force, thereby improving the carrying capacity, glass reinforced autoantigen wind pressure resistance, cold and heat resistance, impact resistance and so on. [0003] Strength of tempered glass several times greater than ordinary glass, bending. Glass carrying capacity is increased, thereby improving the fragile nature of the glass, even if tempered glass also showed no acute destruction of small fragments, damage to the human body is greatly reduced. Good thermal shock properties than ordinary glass has a glass 3 to 5-fold increase in general can w...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C03C21/00C03C23/00C03B27/04B32B17/10B32B27/30B32B7/08B32B7/022B32B33/00B32B37/10B32B37/06
CPCC03C21/001C03C23/007C03B27/04B32B17/10018B32B17/1055B32B17/10871B32B27/306B32B7/08B32B7/022B32B33/00B32B37/10B32B37/06B32B2307/50
Inventor 徐燕斌
Owner 张家港市强达玻璃有限公司
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