Vacuum glass air-exhaust port and manufacturing method thereof

A technology of vacuum glass and air suction port, which is applied in glass forming, glass reshaping, glass manufacturing equipment, etc., and can solve problems such as low production efficiency, weakened solder performance, airtightness, and feasibility effects

Inactive Publication Date: 2015-01-21
戴长虹
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The disadvantage of the first method is that the vacuuming process is complicated and the production efficiency is very low: because the suction pipe is very thin, the vacuum layer is very thin, the suction resistance is large, the speed is small, and single-chip extraction is required, so the production efficiency is very low; The two methods can solve the shortcomings of the first method, but because the low-temperature glass solder is made of a variety of oxides, under high temperature and vacuum, the air and moisture absorbed by the solder, volatile substances in the solder, and the solder during production The gas dissolved in the process and the decomposition of some oxides in the solder will cause a large number of bubbles in the solde

Method used

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  • Vacuum glass air-exhaust port and manufacturing method thereof
  • Vacuum glass air-exhaust port and manufacturing method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0077] Example 1: see figure 1 , The vacuum glass is composed of upper glass 1 and lower glass 2. A through hole is drilled on the upper glass 1 to form an air extraction port, and the glass paste or metal paste is printed on the lower surface of the upper glass 1 by mechanical coating or printing technology A sealing ring concentric with the suction opening is placed on the upper surface of the lower glass 2 and a sealing box 5 concentric with the suction opening is placed. The sealing box 5 is a metal box with a raised bottom, which can be fixed on the lower glass 2 by bonding. The sealing ring 4 of the upper glass 1 can be inserted into the sealing box 5, and there is an air extraction channel between the sealing ring 4 and the sealing box 5; the upper glass is sent into a high-temperature furnace or a tempering furnace to sinter the sealing ring on the upper glass, and then used The low-temperature glass solder is used to seal the upper and lower glass sheets after being com...

Embodiment 2

[0078] Example 2: see figure 2 , Drill a through hole on the upper glass 1 to form an air extraction port, and use glass paste or metal paste to bond a metal ring or glass ring on the lower surface of the upper glass 1. When a metal ring is used, it is preferably close to the glass thermal expansion coefficient Metal such as Kovar alloy. When glass rings are used, metal paste is preferably applied to strengthen the sealing effect; a pit is opened on the upper surface of the lower glass 2 at a position corresponding to the suction port, and the sealed box 5 is placed in the pit, The sealed box 5 is two large and small glass boxes. The inner surface of the large glass box is coated with metal paste, and the two glass boxes are sintered together by high temperature; the sealing ring 4 of the upper glass 1 can be inserted into the two sealed boxes 5 The upper glass is sent into a high temperature furnace or a tempering furnace to sinter the sealing ring on the upper glass, and the...

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Abstract

The invention relates to a vacuum glass air-exhaust port. The air-exhaust port is characterized in that the upper glass of the vacuum glass is perforated, such that the air-exhaust port is formed. A sealing ring is prepared on the lower surface of the upper glass at the periphery of the air-exhaust port. A sealing box is placed at a place on the upper surface of the lower glass and corresponding to the air-exhaust port. The sealing ring can be inserted into the sealing box. After edge-sealing of the upper and lower glass, a metal solder is placed into the air-exhaust port. The air-exhaust port is vacuumed and heated such that the metal solder is molten into liquid, and the liquid is retained in the sealing box. The sealing ring is also immersed in the liquid. The air-exhaust port is automatically sealed according to a liquid sealing principle. After cooling, the liquid is solidified, such that air-tight sealing upon the air-exhaust port is realized. The method provided by the invention can be used in mass productions. With the method, vacuum glass production efficiency and qualification rate can be greatly improved, and production cost can be reduced.

Description

Technical field [0001] The invention belongs to the field of vacuum glass, and in particular relates to a suction port of vacuum glass and a manufacturing method thereof. [0002] Background technique [0003] The existing vacuum glass is generally composed of two or three pieces of flat glass. The sides of the glass are sealed with low-temperature glass solder, and there is a tiny support in the middle. The thickness of 0.1~0.2mm between the two pieces of glass is formed by pumping. Vacuum layer. Since there is no heat and sound transmission of gas, and the inner surface of the glass can have a transparent low-heat radiation film, vacuum glass has good heat insulation and sound insulation effects, and is one of the best energy-saving glass. [0004] The key technologies of the existing vacuum glass include: one is edge sealing, the other is the placement of supports, and the third is the acquisition and maintenance of vacuum. There are mainly two methods for obtaining vacuum in e...

Claims

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Application Information

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IPC IPC(8): C03B23/24C03C27/06
CPCY02P40/57
Inventor 戴长虹
Owner 戴长虹
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