Method for preparing vacuum glass with negative pressure inside cavity by adopting 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 low welding heating temperature, simple operation and safe transportation.

Inactive Publication Date: 2019-01-25
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 magnesium foil or magnesium alloy foil into a strip shape with the same width as the welding position of ordinary glass after texturing treatment. The thickness of the magnesium foil is 0.05mm~1mm, and the thickness of the magnesium alloy foil is 0.05mm. ~1mm, then cleaned, stored in an inert gas atmosphere to obtain a magnesium strip; in an inert gas atmosphere, lay the magnesium strip on the position to be welded on the ordinary glass after texturing, and use a laser device, The micro-beam plasma device or high-energy beam device sc...

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 diameter 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 spraying, the high-pressure water spraying pressure of the water cutting machine is 150MPa-400MPa, and the continuous spraying time at the same position is 1s-5s; that is, the texturing treatment of the position to be welded of the ordinary glass is completed, and the ordinary glass after texturing treatment is obtained. Others are the same as the first embodiment.

[0019] The roughened ordinary glass obtained...

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 relates to a vacuum glass manufacturing method, in particular to a method for preparing vacuum glass with negative pressure inside a cavity by adopting common glass. The problem that inthe prior art, common glass cannot be adopted for preparing vacuum glass is solved. The method for preparing vacuum glass with negative pressure inside the cavity by adopting common glass comprises the steps of 1 performing frosting treatment, 2 performing metallization treatment, 3 placing brazing foil, performing metallization treatment on a sealing frame and assembling and obtaining the assembled common glass, 4 performing vacuum brazing, and therefore the common glass is adopted for preparing the vacuum glass with the negative pressure inside the cavity. The method has the advantages thatoperation is easy, and batched production can be achieved; the vacuum degree of the negative pressure inside the vacuum glass with the negative pressure inside the cavity is controllable; the weldingheating temperature is low, no soldering flux containing lead is adopted, and the phenomenon that the common glass is converted into semi-tempered glass is avoided. The method is mainly used for preparing the vacuum glass with the negative pressure inside 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 industrial product with a high rate, 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...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C03C27/08
CPCC03C27/08
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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