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Flat glass tempering method and device

A glass tempering and flat plate technology, which is applied in glass tempering, glass manufacturing equipment, manufacturing tools, etc., can solve problems such as high waviness, difficulty in nozzles or spouts, and deformation, so as to improve the ability to vibrate, reduce deformation, and improve quality effect

Active Publication Date: 2017-07-25
LUOYANG LANDGLASS TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the air grilles 3 are set up and down in pairs, it is difficult to completely align the nozzles or nozzles on the upper and lower air grilles 3; affected by the wind resistance of the cooling air delivery pipeline, the pressure of the cooling air in the upper and lower air grills 3 will also have a slight difference; limited by the installation space, the distances between the nozzles or spouts on the upper and lower air grilles 3 and the surface of the glass plate 4 are also difficult to be exactly the same; In addition, the glass plate 4 itself has a certain gravity; therefore, it is difficult for the glass plate 4 to maintain the force balance in the vertical direction under the action of the cooling wind pressure, and the glass plate 4 in the high temperature softening state is subjected to upward or downward pressure. Under the action of the lower force, it will be easy to vibrate and cause deformation, especially in the front and rear of the conveying direction of the glass plate 4, the deformation caused by the vibration is more prominent
Therefore, the flat tempered glass processed by the above-mentioned prior art generally exists such as image 3 Defects with high waviness shown

Method used

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  • Flat glass tempering method and device
  • Flat glass tempering method and device
  • Flat glass tempering method and device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] Figure 4a , Figure 4b Shown is embodiment 1 of the flat glass tempering device of the present invention, the flat glass tempering device in this embodiment comprises a glass plate heating furnace 1, a glass plate presetting device 6 composed of a roller table 2 and an air grid 5, and a glass plate presetting device 6 composed of a roller table 2 A glass plate tempering unit 7 formed with the wind grille 3 .

[0033] When working, the cooling air pressure inside the air grid 5 is much lower than the cooling air pressure inside the air grid 3. For example, for a glass plate with a thickness of 6mm, the cooling air pressure of the air grid 5 is 1200Pa, and the cooling air pressure of the air grid 3 is 2250Pa. , for a glass plate with a thickness of 5mm, the cooling air pressure of air grille 5 is 1000Pa, and the cooling air pressure of air grille 3 is 3600Pa; for a glass plate with a thickness of 4mm, the cooling air pressure of air grille The pressure is 7200Pa. For a...

Embodiment 2

[0038] Figure 5a , Figure 5b Shown is Embodiment 2 of the flat glass tempering device of the present invention. The difference from Embodiment 1 is that the presetting device 6 of Embodiment 2 includes two pairs of air grids 6-1, 6-2 arranged up and down oppositely, and ,Such as Figure 5b As shown, the number of nozzles on the air grille 6-2 is increased relative to the air grille 6-1. Like this, relative to the air grille 6-1, the breeze blown by the air grille 6-2 can be appropriately improved to form a wind on the surface of the upper glass plate 4. Press to further improve the pre-setting effect on the glass plate 4.

Embodiment 3

[0040] Figure 6a , Figure 6b Shown is Embodiment 3 of the flat glass tempering device of the present invention. In this embodiment, the cooling air pressure inside the air grid 8 in the glass plate presetting device 6 is the same as the cooling air pressure inside the air grid 3 of the tempering unit 7 .

[0041] In order to reduce the wind pressure formed by the cooling wind on the surface of the glass plate 4 in the presetting device 6, the wind grid 8 is blown out the required breeze, as Figure 6bAs shown, the number of cooling air nozzles on the air grid 8 needs to be reduced.

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Abstract

The invention discloses a method for tempering flat glass, which includes a step of heating flat glass in a heating furnace, and a step of tempering in a tempering unit composed of roller tables and air grids, wherein, between the heating step and the tempering step , there is also a step of pre-setting the high-temperature soft glass plate output from the heating furnace; the pre-setting step is specifically: before the glass plate is sent into the tempering unit, the glass plate is pre-formed by breeze. Cooling to improve the rigidity of the glass plate, the pressure of the breeze acting on the surface of the glass plate is less than the pressure of the cooling wind acting on the surface of the glass plate in the tempering unit, and the pressure formed by the breeze is small enough to avoid or minimize the pressure caused by the wind Deformation of glass sheets caused by pressure. At the same time, a flat glass tempering device applying the method is further provided.

Description

technical field [0001] The invention relates to a tempering method for flat glass and a tempering device for flat glass using the method. Background technique [0002] Such as figure 1 As shown, the existing flat glass tempering device usually includes a glass plate heating furnace and a tempering unit composed of an air grid and a roller table, wherein, 1 is a glass plate heating furnace, 2 is a roller table, 3 is an air grid, and 4 is a glass plate. . When working, the glass plate is first heated in the heating furnace, and then the glass plate is transported from the heating furnace to the tempering unit by the roller table, and the glass plate is blown by the air grid above and below the roller table in the tempering unit to realize the glass plate cooling tempering. [0003] Because the tempering of the glass plate is completed by air cooling, the wind blown out by the air grille must have sufficient wind speed and volume to make the glass plate reach a sufficient co...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C03B27/044
CPCC03B27/044C03B27/0404
Inventor 赵雁
Owner LUOYANG LANDGLASS TECH CO LTD