Preparation method of high-strength fireproof glass

A technology of fireproof glass and manufacturing method, which is applied in glass tempering, glass manufacturing equipment, manufacturing tools, etc., can solve the problem of high cost of molten salt method

Inactive Publication Date: 2014-06-04
虞建忠
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The cost of the molten salt method is also relatively high

Method used

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  • Preparation method of high-strength fireproof glass

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Experimental program
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Effect test

Embodiment 1

[0025] Embodiment 1 of the present invention: as figure 1 Shown, a kind of manufacture method of high-strength fireproof glass is characterized in that:

[0026] In step a, the float glass is used as a substrate, and the cold treatment of edge grinding, filleting and cleaning is carried out;

[0027] Step b, send the cold-treated float glass into a tempering furnace for heat treatment, heat it to 700°C, and heat it for 50 S / mm. During the heating process, spray a strengthening agent, and the proportion of the strengthening agent by weight is: K 3 PO 4 : 40 parts, Na 3 PO 4 : 3 parts, Na: 0.5 parts, coating liquid thickener: 0.2 parts, SnCl 4 : 5 servings, ROSO 3 Na: 0.2 parts, water: 25 parts, heat the glass to the softening critical state;

[0028] Step c, setting a temperature sensor to control the furnace temperature at 700°C;

[0029] In step d, the glass heated and softened to a critical state is sent to the air cooling at a speed of 200 mm / s. The upper wind press...

Embodiment 2

[0032] Embodiment 2 of the present invention: as figure 1 Shown, a kind of manufacture method of high-strength fireproof glass is characterized in that:

[0033] In step a, the float glass is used as a substrate, and the cold treatment of edge grinding, filleting and cleaning is carried out;

[0034] Step b, sending the cold-treated float glass into a tempering furnace for heat treatment, heating to 710°C, heating time 50S / mm, spraying a strengthening agent during the heating process, and the proportion of the strengthening agent by weight is: K 3 PO 4 : 50 parts, Na 3 PO 4 : 4 parts, Na: 1.3 parts, coating liquid thickener: 5 parts, SnCl 4 : 7 servings, ROSO 3 Na: 0.7 parts, water: 31 parts, heat the glass to the softening critical state;

[0035] Step c, setting the temperature sensor to control the furnace temperature at 705°C;

[0036]In step d, the glass heated and softened to a critical state is sent to the air cooling at a speed of 250 mm / s. The upper wind press...

Embodiment 3

[0039] Embodiment 3 of the present invention: as figure 1 Shown, a kind of manufacture method of high-strength fireproof glass is characterized in that:

[0040] In step a, the float glass is used as a substrate, and the cold treatment of edge grinding, filleting and cleaning is carried out;

[0041] Step b, send the cold-treated float glass into a tempering furnace for heat treatment, heat it to 720°C, and heat it for 50 S / mm. During the heating process, spray a strengthening agent, and the proportion of the strengthening agent by weight is: K 3 PO 4 : 60 parts, Na 3 PO 4 : 5 parts, Na: 4 parts, coating solution thickener: 10 parts, SnCl 4 : 10 servings, ROSO 3 Na: 1.2 parts, water: 40 parts, heat the glass to the softening critical state;

[0042] Step c, setting the temperature sensor to control the furnace temperature at 710°C;

[0043] In step d, the glass heated and softened to a critical state is sent to the air cooling at a speed of 300 mm / s. The upper wind pre...

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Abstract

The invention discloses a preparation method of high-strength fireproof glass. The preparation method comprises following steps: float glass is taken as a substrate, and is subjected to cold treatment including edge polishing, circular corner polishing, and cleaning; the treated float glass is delivered into a toughening furnace for heat treatment, wherein the treated float glass is heated to 700 to 720 DEG C, heating time is 50S / mm, spraying of a reinforce is carried in the heating process, and the treated float glass is heated to softening critical states; a temperature sensor is used for controlling a discharging temperature to be 700 to 710 DEG C; the glass which is heated to the softening critical states is delivered into an air cooling device with a speed of 200mm / s-300mm / s, upper air pressure of the air cooling device is controlled to be 680 to 700kPa, and lower air pressure is controlled to be 640 to 660kPa. According to the preparation method, spraying of the reinforce in the high-temperature heating process is adopted, so that the obtained glass possesses fire resistance, and strength of the glass is more than 5 times of original strength of the glass; the preparation method is simple and convenient; production cost is reduced; and pollution on the environment is reduced.

Description

technical field [0001] The invention relates to a method for manufacturing high-strength fireproof glass, which belongs to the technical field of glass manufacturing. Background technique [0002] When the fire-resistant glass in the prior art is made, the fire-proof liquid glue is poured into the middle of the double-layer glass, and the raw material of ankle boots is used for fire prevention, and then the whole glass is tempered. This kind of glass has low light transmittance, and the thickness of the glass is relatively heavy. During the long-term storage process, the fireproof liquid glue in the middle of the double-layer glass will appear uneven, which will lead to a decline in fireproof performance, and the production process is more complicated, and the product quality cannot last for a long time. Guaranteed, and the use of physically tempered glass is less safe. It is also enhanced by the coating method, but the coating method has poor enhancement effect, and seriou...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C03B27/00
Inventor 虞建忠
Owner 虞建忠
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