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Method for preparing vacuum glass

A vacuum glass and glass technology, applied in glass manufacturing equipment, glass forming, glass reshaping, etc., can solve the problems affecting the gelling property of low melting point sealing glass powder, the different pressure bearing capacity of vacuum glass surface, and the impact of vacuum glass Sealing and other issues, to achieve the effect of short heating time, uniform temperature change, and reduce production time

Active Publication Date: 2014-09-10
青岛中腾志远真空玻璃科技发展有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

There are two defects in the vacuum glass prepared by this method: one is that the preparation time is relatively long, and it generally takes eight hours to obtain the vacuum glass. For example, the setting of the fulcrum, the height, area, and diameter of the pointing point all need to be strictly controlled, which is time-consuming and laborious; Second, there are air holes on the surface of the vacuum glass, and the pressure bearing capacity of the vacuum glass surface is different, and it is not beautiful at the same time.
[0004] The application number is 2012103740367, the publication date is March 6, 2013, and the title is an invention patent application for vacuum glass and its preparation method. The disclosed vacuum glass preparation method is to heat and vacuumize while heating in a vacuum furnace. The method produces vacuum glass, and the low-melting-point sealing glass powder is easy to foam and carbonize under high temperature and high negative pressure. The detachment treatment of the powder will form carbonized black lines, which will affect the gelation of the low melting point sealing glass powder and the sealing performance of the vacuum glass

Method used

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  • Method for preparing vacuum glass

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] The method for preparing vacuum glass of the present invention includes the following steps:

[0023] The first step is to heat the glass to solidify the low melting point sealing glass powder: apply the low melting point sealing glass powder to the four edges of the glass sheet. The melting point of the low melting point sealing glass powder is 420~440℃; The glued glass sheet with melting point sealing glass powder is placed in a tempering furnace and heated to 650~750℃, and then heated continuously for 2~3min to melt the low melting point sealing glass powder into a gel shape, and then blow it to cool down. The melting point sealing glass powder is solidified on the glass. At the same time, during the blowing process, the upper surface of the solidified low-melting sealing glass glue forms concave and convex points that can play a supporting role. At the same time, the tempered glass becomes tempered glass . The glass after the above-mentioned treatment finally forms a ...

Embodiment 2

[0034] The difference from Example 1 is that in the first step of heating the glass, during the curing of the low-melting sealing glass powder, the low-melting sealing glass powder is applied to the four edges of the glass sheet, and at the same time along the already coated low-melting sealing glass The upper surface of the glass powder is then coated with low-melting sealing glass powder at intervals. The height of the low-melting sealing glass powder applied at intervals is higher than the upper surface of the low-melting sealing glass powder, and the glass sheet coated with the low-melting sealing glass powder is heated Heat to 420-480°C and heat for 20-30 minutes until the low melting point sealing glass powder is gelatinous, and then cooling to room temperature to solidify the low melting point sealing glass powder on the glass sheet. At this time, the low-melting-point sealing glass powder applied at intervals is cooled and solidified into a suction port between the two g...

Embodiment 3

[0037] The difference from Example 1 is that the non-glue glass sheet is replaced by a low-glue glass sheet, that is, there are a small amount of glue formed by low-melting sealing glass powder heated to a gel shape and then cooled and solidified at the four edges of the glass, which is heated and solidified The way is realized through the first step in Example 1. Compared with the glueless glass sheet, the adhesion between the less glued glass sheet and the glued glass sheet is better.

[0038] Others are the same as in Example 1.

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Abstract

The invention relates to the field of vacuum glass and in particular relates to a method for preparing vacuum glass. The method comprises the following steps: (1) heating glass, gluing and curing; (2) arranging the glass; (3) heating the glass in a kiln; and (4) taking out the vacuum glass. The method is short in preparation time and high in sealing property, the energy consumption is reduced, and the vacuum glass manufactured by the method is uniform in bearing capacity.

Description

Technical field [0001] The invention relates to the field of vacuum glass, in particular to a method for preparing vacuum glass. Background technique [0002] The vacuum layer of vacuum glass can effectively block indoor and outdoor heat conduction, and significantly reduce the emission of pollutants and greenhouse gases from indoor air-conditioning computers. It has good thermal insulation performance and can reduce noise transmission. Vacuum glass is superior The performance application is very extensive. [0003] The application number is 2013106090473, the publication date is March 19, 2014, the name is the invention patent application of the preparation process of vacuum glass, discloses a preparation method of vacuum glass, the lead-free glass powder is placed and dispersed on the glass surface to form The fulcrum with the designed height and area is sent into the tempering furnace for tempering to obtain tempered glass. The flat glass with the exhaust hole is placed on the ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C03B23/24
CPCC03B23/24E06B3/66Y02A30/249Y02B80/22Y02P40/57
Inventor 滕少波滕腾
Owner 青岛中腾志远真空玻璃科技发展有限公司
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