Manufacturing method of fireproof glass

A technology of fire-resistant glass and manufacturing methods, applied in glass manufacturing equipment, glass tempering, manufacturing tools, etc., can solve the problems of complex manufacturing process, high technical content and cost, loss, etc.

Inactive Publication Date: 2013-04-24
杭州福隆鼎门窗幕墙有限公司
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  • Summary
  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

Compared with ordinary tempered glass, the manufacturing process of fire-resistant glass is complicated, and the technical content and cost are higher. The manufacturing difficulty lies in the stress distribution, which many m...

Method used

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  • Manufacturing method of fireproof glass
  • Manufacturing method of fireproof glass

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Embodiment Construction

[0011] The manufacturing method of fire-proof glass, firstly adopts chemical toughening treatment and physical toughening treatment to the float glass after cutting and fine grinding; the chemical toughening treatment process is soaked in high-temperature salt solution of cesium and potassium to realize the chemical toughening of glass; and then Use a tempering furnace for rapid air-cooling physical tempering.

[0012] The first step of physical tempering is to send the glass soaked in cesium potassium solution into a special tempering furnace for heating treatment. The temperature of the heating chamber is set between 680-720°C, and the heating time is 40-60s per millimeter of thickness. Heating to the critical state of softening point;

[0013] The second step of physical tempering is to send the glass heated to the critical state of softening point into the air grid for air-cooling at a speed of 300-500 / mm per second, and adjust the height of the air grid according to the t...

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Abstract

The invention relates to a manufacturing method of fireproof glass. The method comprises: first conducting chemical tempering and physical tempering respectively on float glass that undergoes edge polishing after cutting, and specifically employing a high temperature salt solution of cesium and potassium to perform soaking during chemical tempering so as to realize chemical tempering of the glass; and then using a tempering furnace to carry out sharp air cooling molding. By means of precise control of the heating time of different thickness glass, and adjustment of the upper and lower air grid positions, air speed, and air pressure, the method provided in the invention can make the tempering cold air uniform, and performs arc-shaped tracking air cooling on glass corners, so that the compressive stress of the glass can reach 190-210MPa.

Description

【Technical field】 [0001] The present invention relates to a method of manufacturing glass, especially a method of manufacturing fireproof glass. 【Background technique】 [0002] Fireproof glass is a measure-type fireproof material. Its high temperature resistance makes it play the role of blocking fire and smoke in the event of a fire. Its fire prevention effect is evaluated by fire resistance performance. Compared with ordinary tempered glass, the manufacturing process of fire-resistant glass is complicated, and the technical content and cost are higher. The manufacturing difficulty lies in the stress distribution, which many manufacturers cannot control, resulting in little difference in stress distribution between fire-resistant glass and tempered glass. And it is easy to produce bursts during use, causing unnecessary losses and potential safety hazards. 【Content of invention】 [0003] The object of the present invention is to overcome the disadvantages of the prior ar...

Claims

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Application Information

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IPC IPC(8): C03B27/04
Inventor 薛林王正
Owner 杭州福隆鼎门窗幕墙有限公司
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