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Method for mfg. high strengthening environmental protection fireproof glass

A technology of fireproof glass and production method, which is applied in glass tempering, glass manufacturing equipment, glass production and other directions, can solve the problems of poor fireproof stability of glass, difficulty in mass production, environmental impact, etc., and achieves processing conditions conveniently and quickly , The effect of eliminating edge stress and stabilizing fire stress

Inactive Publication Date: 2005-11-09
何志强
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Problems solved by technology

The disadvantages of the fire-resistant glass made by the above method are: bubbles, impurities, etc. appear in the filled fire-resistant material, and the glass is heavy and the light transmittance is low; the glass replaced by potassium ions is active and unstable due to the potassium ions in the potassium salt. As environmental conditions change, surface congestion will change, so the fire resistance of glass is not stable, and the manufacturing process is dangerous and complicated, which also has an impact on the environment. It is difficult to guarantee product quality for a long time, and it is difficult to scale up mass production.

Method used

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  • Method for mfg. high strengthening environmental protection fireproof glass
  • Method for mfg. high strengthening environmental protection fireproof glass
  • Method for mfg. high strengthening environmental protection fireproof glass

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Embodiment Construction

[0017] Below in conjunction with the manufacture method of 6mm fireproof glass, the present invention will be further described:

[0018] 1. Cut, finely grind and fillet the 6mm white glass (float glass) substrate to eliminate edge stress and clean it;

[0019] 2. Set the temperature of the upper part of the tempering furnace to 660°C, the temperature of the lower part to 680°C, the heating time to about 300-380s, and the furnace speed to 400mm / s. The glass is sent into a special tempering furnace and heated to the critical state of softening point;

[0020] 3. Set the air row at a height of 50-60mm, and the air pressure in the center of the air nozzle is 6-8×10 5 Pa, the external wind pressure is between 7000 and 7700Pa. When the glass reaches the softening temperature, it is quickly released from the furnace and physically tempered under the action of high-intensity and uniform wind pressure from the special air exhaust nozzle to achieve the high-strength stress required fo...

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Abstract

A high-strength fire-proof glass is prepared from ordinary float glass through cold treating, heating it to its softening point in a special strengthening furnace, and moving it through a special wind wall of compressed air at a speed of 300-500 mm / s for cooling and strengthening it.

Description

Technical field: [0001] The invention relates to the technical field of glass manufacturing, in particular to a method for manufacturing high-strength environment-friendly fireproof glass. Background technique: [0002] The production of fireproof glass in the prior art is to fill flame retardant material between two pieces of glass or use potassium ions in the chemical raw material potassium salt to replace metal cations in the glass, and then perform physical toughening. The disadvantages of the fire-resistant glass made by the above method are: bubbles, impurities, etc. appear in the filled fire-resistant material, and the glass is heavy and the light transmittance is low; the glass replaced by potassium ions is active and unstable due to the potassium ions in the potassium salt. As environmental conditions change, the phenomenon of surface congestion will change, so the fire resistance of glass is not stable, and the manufacturing process is dangerous and complicated, wh...

Claims

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Application Information

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IPC IPC(8): C03B27/04
CPCY02P40/57
Inventor 何志强
Owner 何志强
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