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Processing technology for single-sheet cesium potassium fireproof glass

A technology of fireproof glass and processing technology, which is applied in glass tempering, glass manufacturing equipment, manufacturing tools, etc. It can solve the problems of unsatisfactory fireproof treatment temperature control range, affecting fireproof glass performance indicators, uneven heat source, etc., and achieve machinable Good performance, high weather resistance, wide application field effect

Inactive Publication Date: 2015-01-21
NINGBO HEXIN GLASS TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The existing production method of fireproof glass is mainly to heat the glass in a high-temperature environment, and then cool it under the action of high-pressure air flow. There are many disadvantages in this production method, mainly because of uneven heat source, uneven cooling, and temperature control of fireproof treatment. The range is not ideal, which affects the performance indicators of fire-resistant glass

Method used

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  • Processing technology for single-sheet cesium potassium fireproof glass

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] Glass pre-treatment: use 15% HF solution and 20% HNO 3 The acid solution mixed according to the volume ratio of 1.2:1 is used for acid treatment on the surface of the glass. The temperature of acid treatment is 18°C, and the time of acid treatment is 18min. Then the glass is cleaned and dried, preheated to 390°C, and kept warm. 28min;

[0025] Ion exchange treatment: immerse the preheated glass in cesium potassium salt solution at a temperature of 600°C for ion exchange treatment for 20 hours, wherein the composition and weight percentage of the cesium potassium salt solution in the ion exchange treatment are: AgNO 3 : 5%, KNO 3 : 88%, CsNO 3 : 4%, KOH: 0.4%, KCl: 0.3%, K 2 CO 3 : 0.8%, Al 2 o 3 : 0.2%, CeO 2 : 0.3%, diatomaceous earth: 1.0%;

[0026] Heat treatment: send the ion-exchange-treated glass into a tempering furnace for heat treatment, the heat treatment temperature is 700°C, and the heating time is 45s per mm thickness; the heating temperature at th...

Embodiment 2

[0029] Glass pre-treatment: use 10% HF solution and 25% HNO 3 The acid solution mixed according to the volume ratio of 1.5:1 is used for acid treatment on the surface of the glass. The temperature of acid treatment is 15°C, and the time of acid treatment is 20min. Then the glass is cleaned and dried, preheated to 400°C, and kept warm. 25min;

[0030] Ion exchange treatment: immerse the preheated glass in cesium potassium salt solution at a temperature of 650° C. for ion exchange treatment for 18 hours, wherein the composition and weight percentage of the cesium potassium salt solution in the ion exchange treatment are: AgNO 3 : 3%, KNO 3 : 90%, CsNO 3 : 3%, KOH: 0.2%, KCl: 0.4%, K 2 CO 3 : 1.5%, Al 2 o 3 : 0.2%, CeO 2 : 0.2%, diatomaceous earth: 1.5%;

[0031] Heat treatment: send the ion-exchange-treated glass into a tempering furnace for heat treatment, the heat treatment temperature is 690°C, and the heating time is 40s per mm thickness; the heating temperature at th...

Embodiment 3

[0034] Glass pre-treatment: use 20% HF solution and 15% HNO 3 The acid solution mixed according to the volume ratio of 0.8:1 is used to acid-treat the surface of the glass. The temperature of the acid treatment is 20°C, and the acid treatment time is 16 minutes. Then the glass is cleaned and dried, preheated to 380°C, and kept warm. 30min;

[0035] Ion exchange treatment: immerse the preheated glass in a cesium potassium salt solution at a temperature of 550° C. for ion exchange treatment for 22 hours, wherein the composition and weight percentage of the cesium potassium salt solution in the ion exchange treatment are: AgNO 3 : 8%, KNO 3 : 85%, CsNO 3 : 2%, KOH: 0.5%, KCl: 0.4%, K 2 CO 3 : 0.6%, Al 2 o 3 : 1%, CeO 2 : 0.5%, diatomaceous earth: 2.0%;

[0036] Heat treatment: Send the ion-exchange-treated glass into a tempering furnace for heat treatment. The heat treatment temperature is 710°C, and the heating time is 50s per mm thickness; the heating temperature at th...

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Abstract

Belonging to the technical field of building materials, the invention relates to a processing technology for a single-sheet cesium potassium fireproof glass. The processing technology comprises the following steps of: pretreatment of glass: conducting surface acid treatment on glass, then carrying out cleaning, drying and preheating to 380-400DEG C, and performing thermal insulation for 25-30min; ion exchange treatment: subjecting the glass to ion exchange treatment in a cesium potassium salt solution at 550-650DEG C for 18-22h; heat treatment: performing heat treatment on the glass subjected to the ion exchange treatment at 690-710DEG C, with the heating time being 40-50s per millimeter thickness; air cooling molding: taking out the glass and sending the glass into an air grid at a speed of 300-500mm / s to undergo air cooling molding, and finally conducting cooling to obtain the single-sheet cesium potassium fireproof glass. The processing technology provided by the invention is simple and practicable, and the prepared glass not only has very good fireproof function, but also has high strength, weathering resistance and machinability.

Description

technical field [0001] The invention relates to a glass processing technology, in particular to a single cesium potassium fireproof glass processing technology. Background technique [0002] At the earliest, most of the common fireproof glass in the domestic and foreign markets were laminated composite fireproof glass and wired fireproof glass. The fireproof adhesive added to the former would soon turn milky white and produce bubbles under ultraviolet radiation, seriously affecting the light transmission of the glass. The service life is short, and manual operation and control are adopted, the production efficiency is low, the product quality is difficult to guarantee, and large-scale industrial production cannot be carried out. The wire fireproof glass not only has poor light transmittance and cannot prevent heat radiation, but also has cumbersome installation. And other problems limit the use of glass as the exterior wall of buildings. In addition, there is a single piece...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C03C21/00C03B27/012C03B27/04
CPCC03C21/001C03B27/012C03B27/04
Inventor 舒贵定
Owner NINGBO HEXIN GLASS TECH
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