Method for preparing vacuum glass with negative pressure in cavity by common glass

A technology of ordinary glass and vacuum glass, applied in the field of vacuum glass production, can solve the problems such as the inability to realize ordinary glass vacuum glass, and achieve the effects of overcoming the difficulty of annealing failure, low welding heating temperature and simple operation.

Inactive Publication Date: 2019-02-22
哈尔滨函海科技开发有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to solve the problem that the prior art cannot realize the use of ordinary glass to prepare vacuum glass, and to provide a method of using ordinary glass to prepare vacuum glass with negative pressure in the cavity

Method used

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Examples

Experimental program
Comparison scheme
Effect test

specific Embodiment approach 1

[0011] Embodiment 1: This embodiment is a method of using ordinary glass to prepare vacuum glass with negative pressure in the cavity, and it is specifically completed according to the following steps:

[0012] 1. Texturing treatment: use physical methods or chemical methods to perform texturing treatment on the position of ordinary glass to be welded to obtain ordinary glass after texturing treatment;

[0013] 2. Metallization treatment: Cut the aluminum foil or aluminum alloy foil into a strip shape with the same width as the welding position of ordinary glass after texturing treatment. The thickness of the aluminum foil is 0.05mm~1mm, and the thickness of the aluminum alloy foil is 0.05mm~1mm. , and then cleaned to obtain an aluminum strip; lay the aluminum strip on the position to be welded on the ordinary glass after texturing, and use a laser device, a micro-beam plasma device or a high-energy beam device to scan the surface of the aluminum strip to reach the aluminum str...

specific Embodiment approach 2

[0018] Specific embodiment two: The difference between this embodiment and specific embodiment one is: the specific operation process of the physical method described in step one is as follows: use a sandblasting machine or a water jetting machine to spray the position to be welded on the common glass, spray For corundum particles with a particle size of 0.1mm-0.5mm, when a sandblasting machine is used for spraying, the pressure of the high-pressure gas of the sandblasting machine is 150MPa-400MPa, and the continuous spraying time at the same position is 1s-5s; When the machine is spraying, the high-pressure water jetting pressure of the water cutting machine is 150MPa ~ 400MPa, and the continuous spraying time at the same position is 1s ~ 5s; that is, the texture treatment of the position to be welded of the ordinary glass is completed, and the ordinary glass after the texturing treatment is obtained. Others are the same as the first embodiment.

[0019] The roughened ordinar...

specific Embodiment approach 3

[0020] Specific embodiment three: the difference between this embodiment and specific embodiment one is: the specific operation process of the chemical method described in step one is as follows: apply or brush a layer of hydrofluoric acid on the position to be welded of ordinary glass, react 3 minutes to 5 minutes, and then wash and remove the hydrofluoric acid, that is, complete the texturing treatment of the position of the ordinary glass to be welded, and obtain the ordinary glass after the texturing treatment. Others are the same as the first embodiment.

[0021] The surface roughness of the ordinary glass at the position to be welded after the texturing treatment obtained in this embodiment is 1.6 μm to 100 μm.

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Abstract

The invention discloses a method for preparing vacuum glass with negative pressure in a cavity by common glass, relates to a vacuum glass manufacturing method and aims to solve the problem that vacuumglass cannot be prepared by common glass in the prior art. The method for preparing the vacuum glass with the negative pressure in the cavity by the common glass includes the steps: first, rougheningtreatment; second, metallizing treatment; third, (1) placing a solder strip; (2) metallizing a sealing frame; (3) assembling the common glass to obtain assembled common glass; fourth, vacuum brazing,to be specific, preparing the vacuum glass with the negative pressure in the cavity by the common glass. The method has the advantages that operation is simple, batch production can be realized, thenegative-pressure vacuum degree of the vacuum glass with the negative pressure in the cavity can be controlled, welding and heating temperature is low, lead-containing welding flux is omitted, and thecommon glass cannot be changed into semi-tempered glass. The method is mainly used for preparing the vacuum glass with the negative pressure in the cavity.

Description

technical field [0001] The invention relates to a method for making vacuum glass. Background technique [0002] Energy saving and emission reduction is one of the basic national policies. Vacuum glass, as a high-performance energy-saving glass, has been paid more and more attention in the field of energy saving; vacuum flat glass or hollow flat glass is a kind of heat insulation, sound insulation rate, light transmission It is a high-tech product with high efficiency, and its production technology involves vacuum technology, welding technology, automation technology and other scientific and technological fields. Vacuum flat glass can be widely used in construction, solar energy applications, refrigerated boxes and refrigerated box transportation, and agricultural greenhouses. [0003] At present, commercially produced vacuum glass generally adopts a two-step process of first high-temperature edge sealing, cooling, installing an exhaust pipeline, heating and vacuuming, and f...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C03C23/00C03C27/08
CPCC03C23/00C03C27/08
Inventor 于汉臣苏佳佳周海张宝全
Owner 哈尔滨函海科技开发有限公司
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