Vacuum defoaming device and foam removal method adopting device

A vacuum defoaming and control device technology, applied in the direction of foam dispersion/prevention, can solve problems such as difficult continuous defoaming, matching problems, adverse reactions of raw materials, etc., to solve adverse effects, reduce the number of bubbles, and improve defoaming effect of ability

Active Publication Date: 2018-01-09
WUHAN CHINA STAR OPTOELECTRONICS SEMICON DISPLAY TECH CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

If the chemical method is used, it is necessary to add a defoamer to eliminate the foam formed by the material during the production process, but the defoamer may have adverse reactions to the raw material
Vacuum stirring defoaming is to put certain materials in a closed container, and use a vacuum pump to vacuumize while stirring, but it is difficult to achieve continuous defoaming on-line

Method used

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  • Vacuum defoaming device and foam removal method adopting device
  • Vacuum defoaming device and foam removal method adopting device

Examples

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Example Embodiment

[0019] The specific implementation of the vacuum degassing device provided by the present invention and the defoaming method using the vacuum degassing device will be described in detail below with reference to the accompanying drawings.

[0020] See figure 1 As shown, an embodiment of the present invention provides a vacuum degassing device, which includes: a tank 110, a stirring shaft 111 and a control device (not marked in the figure).

[0021] Wherein, the tank body 110 is used to contain the liquid material 113, and when the tank body 110 rotates (clockwise or counterclockwise), the liquid material 113 is caused to perform centrifugal movement along with the tank body 110.

[0022] The stirring shaft 111 is arranged in the tank 110. When the stirring shaft 111 rotates, the liquid material 113 is stirred to make the liquid material 113 perform centrifugal movement.

[0023] The control device is respectively connected with the tank body 110 and the stirring shaft 111 for controlli...

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PUM

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Abstract

The invention discloses a vacuum defoaming device and a foam removal method adopting the device. The device comprises a tank body, a stirring shaft and a control device, wherein the tank body is usedfor containing a liquid material, and the liquid material performs centrifugal motion when the tank body rotates; the stirring shaft is arranged in the tank body and stirs the liquid material when thestirring shaft rotates, so that the liquid material does centrifugal motion; the control device is respectively connected with the tank body and the stirring shaft and is used for controlling the tank body and the stirring shaft to rotate; when the control device controls the stirring shaft and the tank body to alternately rotate, the liquid material has a downward extruding tendency under the self-weight of the liquid material and the centrifugal forces produced by the rotation of the tank body and the stirring shaft, so that a foam existing in the liquid material is extruded and separated from the liquid material.

Description

technical field [0001] The invention relates to the technical field of liquid crystal display panels, in particular to a vacuum defoaming device and a defoaming method using the vacuum defoaming device. Background technique [0002] With the development of the display panel industry, flexible display panels have more market advantages and wider application fields. Bubbles may exist in high-viscosity materials (such as PI polyimide materials, etc.) that are flexible substrates. During the product manufacturing process, if there are air bubbles in the flexible substrate, they will be impacted by high energy during the (Excimer Laser Annealcrystallization, ELA) process, and the air bubbles will expand when heated, and will rupture, burn or collapse, which will cause Defective or scrapped products. Therefore, it is necessary to remove the air bubbles that may exist in the high viscosity material. [0003] At present, defoaming of materials generally adopts adding defoaming ag...

Claims

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Application Information

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IPC IPC(8): B01D19/02
Inventor 孙超
Owner WUHAN CHINA STAR OPTOELECTRONICS SEMICON DISPLAY TECH CO LTD
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