Toughening furnace for continuously producing half strengthened glass and production method of toughening furnace

A production method and tempering furnace technology, which is applied in the field of tempering furnaces and continuous production of semi-tempered glass, can solve the problems of weak wind blowing strength, long waiting time, and limited length of cooling section, and achieve the effect of improving work efficiency and excellent flatness

Inactive Publication Date: 2013-05-29
天津南玻节能玻璃有限公司 +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The back-and-forth transfer caused the back glass to wait for a long time at the entrance of the tempering furnace
2. During the cooling process of the glass, due to its property that the stress of semi-tempered glass is smaller than that of fully tempered glass, the wind blowing strength is very weak. In addition, the length of the cooling section is limited, and the glass must be transmitted back and forth in the cooling section.
The above two reasons lead to the inability of the single-chamber furnace and the double-chamber furnace to realize the continuous production of semi-tempered glass

Method used

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  • Toughening furnace for continuously producing half strengthened glass and production method of toughening furnace
  • Toughening furnace for continuously producing half strengthened glass and production method of toughening furnace

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Experimental program
Comparison scheme
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Embodiment 1

[0022] Such as figure 1 , figure 2 As shown, the upper area 1, the heating area, the self-cooling area 2, the air cooling area 3 and the lower area 4 are arranged in sequence, and the heating area includes the first heating section 5, the second heating section 6 and the third heating section 7, and the first heating section Section 5, the second heating section 6 and the third heating section 7 adopt different heating temperatures, and their lengths are all 10 meters. Both the upper film area 1 and the lower film area 4 have the function of two-way unloading, and the upper film area 1 includes a horizontal film loading roller 8. Vertical film loading roller 9, universal wheel 10, transmission roller 11 and positioning cat's eye 12, horizontal film loading roller 8 and the left side of transmission roller 11, vertical film loading roller 9 and transmission roller The lower side of 11 is attached, the universal wheel 10 is arranged between the rollers in the intersection area...

Embodiment 2

[0024] The 6mm thick glass is transported to the heating zone by the roller passing through the upper area. The heating time of the first heating section is 90s, and the heating temperature is 690°C. The heating time of the second heating section is 90s, and the heating temperature is 695°C. The heating time of the third heating section is 90s, and the heating temperature is 685°C; then the glass is transported to the self-cooling zone, the cooling time is 50s, and the temperature drops to 300°C; then it is transported to the air-cooling zone, the wind pressure is 2000Pa, and the cooling time is 45s , the height of the air grille is 25mm, and the temperature drops to 65°C.

Embodiment 3

[0026] The 8mm thick glass is transported to the heating zone by the roller passing through the upper area. The heating time of the first heating section is 135s, and the heating temperature is 687°C. The heating time of the second heating section is 130s, and the heating temperature is 698°C. The heating time of the three heating sections is 138s, and the heating temperature is 686°C; then the glass is transported to the self-cooling zone, the cooling time is 54s, and the temperature drops to 290°C; then it is transported to the air-cooling zone, the wind pressure is 1200Pa, and the cooling time is 66s , the height of the air grille is 25mm, and the temperature drops to 68°C.

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Abstract

The invention provides a toughening furnace for continuously producing half strengthened glass and a production method of the toughening furnace. The toughening furnace is characterized by comprising a feeding area, a heating area and the like arranged orderly, wherein the feeding area has a two-way feeding function; and the heating area comprises a first heating section, a second heating section and a third heating section. The production method of the toughening furnace comprises the following steps of heating treatment, cooling treatment and the like. The toughening furnace has the beneficial effects that the heating area is divided into three heating sections; the length of each heating section is 10m; the length of the heating area is greater than that of like product; the three heating sections adopt different temperature to heat; the glass can finish the heating requirement of the half strengthened glass after passing through the three heating sections; conveying for a plurality of times is not needed; and the rear glass does not need to wait in the feeding area, so that continuous heating of the glass is achieved; and the work efficiency is improved. The production efficiency of the toughening furnace is 3.5 times that of a common double-chamber toughening furnace, and is 5.5 times that of a common single-chamber furnace; and the energy consumption of each square meter of glass is reduced by about 39% in comparison with that of the common toughening furnace.

Description

[0001] technical field [0002] The invention belongs to the field of glass manufacturing, in particular to a tempering furnace for continuously producing semi-tempered glass and a production method thereof. Background technique [0003] Semi-tempered glass is a kind of glass between ordinary flat glass and tempered glass. It has some advantages of tempered glass, and its strength is higher than that of ordinary glass. At the same time, it avoids the poor flatness of tempered glass and is easy to explode. Destruction is a weakness such as overall smashing. When semi-tempered glass is damaged, it will crack radially along the crack, usually without cracks, so it will not shatter and collapse when it is damaged. Most semi-tempered glass production currently uses heat treatment methods, usually using single-chamber or double-chamber furnaces. But the processing efficiency of single-chamber furnace and double-chamber furnace is slow. The reasons for the slow processing effici...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C03B27/012C03B27/04
CPCY02P40/57
Inventor 秦伟哲童帅
Owner 天津南玻节能玻璃有限公司
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