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Apparatus and method for inhibiting TFT-LCD substrate glass bubbles

A glass and bubble technology, applied in glass furnace equipment, glass manufacturing equipment, glass transportation equipment, etc., can solve problems such as restrictions and pollution

Inactive Publication Date: 2013-01-30
IRICO DISPLAY DEVICES
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, arsenic and antimony will pollute the environment, so they are banned from use in some areas
Sales of products containing arsenic and antimony are subject to geographical restrictions

Method used

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  • Apparatus and method for inhibiting TFT-LCD substrate glass bubbles

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Experimental program
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Embodiment Construction

[0015] The illustrated case is the case of glass at high temperature (1200℃~1680℃). The material of the molten glass conveying pipe 1 is precious metals such as platinum, rhodium, palladium, or their alloys.

[0016] Such as figure 1 As shown, the high-temperature molten glass 9 flows through the molten glass conveying pipe 1, and a section of the pipe that flows through is surrounded by a sealed container 2. This section of the pipe can be straight or two small sections at a certain angle (more than 0°, Less than or equal to 90°) pipeline. The inner wall of the sealed container 2 is made of refractory insulation material, and the outer wall is made of non-magnetic stainless steel; the container contains the cooling section of the glass conveying channel; the minimum distance between the inner surface of the container and the outer surface of the glass conveying channel 1 is 100mm, and the maximum distance 3000mm, a sealed space 8 is formed between.

[0017] The steam 10 is fed ...

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PUM

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Abstract

The invention relates to an apparatus and a amethod for inhibiting TFT-LCD substrate glass bubbles, the apparatus comprises a seal container and a set of control system, a high temperature glass liquid flows through a glass liquid transmission pipeline, one segment pipeline by flowing through is bounded by a seal container, a seal space is formed between the pipeline external surface and seal container interior surface; steam is sent by a steam air inlet pipe, and is penetrated into a steam cycle pipeline through a steam inlet valve, and enters in a seal space through a cycle inlet valve, the steam in a seal space is returned to a steam circulating pipe by circulating to an air valve; and steam content in the seal space is controlled by a set of closed loop control system. The effect scope is a cooling segment during the glass transmission process, the possibility of new bubbles generation during the cooling process is substantially reduced.

Description

Invention field [0001] The invention relates to a device and a method for suppressing the generation of bubbles by controlling the environmental atmosphere in the manufacturing process of TFT-LCD substrate glass. Background technique [0002] TFT-LCD substrate glass is a kind of raw material used in TFT-LCD flat panel displays. Due to the production process, it is easy to produce bubbles during the manufacturing process. TFT-LCD flat panel displays have an impact on the size of bubbles in the TFT-LCD substrate glass. , The number is very strict. The mainstream manufacturing process of TFT-LCD substrate glass is melting, conveying, forming, and post-processing. The melting and conveying process is most prone to bubbles. If these bubbles cannot be discharged from the glass melt before the plate is formed, it will cause product defects or even waste products. Regarding the countermeasures to the bubble problem, the more popular method is to use arsenic and antimony oxides as defo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C03B35/14
CPCC03B7/02C03B5/16
Inventor 黄鲲曾召
Owner IRICO DISPLAY DEVICES
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