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A kind of edge sealing material used in negative pressure kettle method to manufacture vacuum glass

A technology for vacuum glass and edge sealing materials, applied in the field of edge sealing materials, can solve the problems of product scrap, gas nozzle damage, fragmentation, etc., achieve high economic promotion value, improve yield and production efficiency.

Active Publication Date: 2018-11-02
江苏凯尚绿色建筑管理有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Among them, when vacuuming and sealing the gas nozzle, the gas nozzle is easily damaged and broken, causing the entire product to be scrapped, resulting in a low yield of vacuum glass production, which greatly affects the production efficiency and economic benefits of vacuum glass

Method used

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Examples

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Effect test

Embodiment 1

[0023] A kind of edge sealing material that is used for negative pressure still method to manufacture vacuum glass, its raw material ratio comprises according to substance quantity:

[0024] Tin oxide (SnO) 55mol%;

[0025] Magnesium oxide (MgO) 15mol%;

[0026] Phosphorus pentoxide (P 2 o 5 ) 25mol%;

[0027] Silicon dioxide (SiO 2 ) 3mol%;

[0028] Aluminum oxide (Al 2 o 3 ) 1 mol%;

[0029] Boron oxide (B 2 o 3 ) 1 mol%.

[0030] When the edge sealing material of this embodiment is used to manufacture vacuum glass by negative pressure kettle method, firstly, more than 3 kinds of solvents with different vaporization points are added, mixed into cream, and then the edge sealing of vacuum glass is coated and filled.

[0031] When the temperature in the negative pressure kettle rises, through the volatilization of part of the solvent and the binder, the edge sealing material of this embodiment is porous and semi-solid, so that the air pressure in the inner cavity of...

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Abstract

The invention discloses an edge sealing material for manufacturing of vacuum glass with a negative-pressure kettle method. The edge sealing material comprises raw materials by mass as follows: 50-60 mol% of stannic oxide (SnO), 10-20 mol% of magnesium oxide (MgO), 20-30 mol% of phosphorus pentoxide (P2O5) and 0-10 mol% of an oxide additive. The oxide additive is a combination of one or more of silicon dioxide (SiO2), aluminum oxide (Al2O3) and boron trioxide (B2O3). The edge sealing material is pasty at the normal temperature after addition of a solvent, the solvent volatilizes partially at the temperature of 100-150 DEG C, the edge sealing material is in a porous semi-solid state (particle gluing stacking state), the melting point is between 280 DEG C and 600 DEG C, and the edge sealing material presents solid-state glass characteristics after melting cooling. By means of the edge sealing material, processes, which cause damage to products easily and are time-consuming, such as slotting for arrangement of air jets, vacuum pumping, heat sealing of the air jets and the like are omitted, the vacuum glass can be manufactured directly through a negative-pressure kettle, the yield and the production efficiency of the vacuum glass are increased, the energy consumption caused by repeated heating required by other processes is reduced, and the edge sealing material has extremely high economic promotion values.

Description

technical field [0001] The invention relates to an edge-sealing material for manufacturing vacuum glass, in particular to an edge-sealing material for making vacuum glass by negative pressure still method. Background technique [0002] The production of vacuum glass mainly includes the following steps: opening and edging cleaning→opening nozzle slot→closing nozzle, cloth support, edge sealing→sintering (high temperature, 6 hours)→cooling (6 hours)→vacuumizing (8 hours) →Melt-sealed gas nozzle→finished product. Among them, when vacuuming and sealing the gas nozzle, the gas nozzle is easily damaged and broken, causing the entire product to be scrapped, resulting in a low yield of vacuum glass production, which greatly affects the production efficiency and economic benefits of vacuum glass. [0003] Using negative pressure autoclave to manufacture vacuum glass saves time-consuming processes such as slotting and arranging gas nozzles, vacuuming and sealing gas nozzles, which ar...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C03C8/24
Inventor 李韵秋徐良
Owner 江苏凯尚绿色建筑管理有限公司
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