Unlock instant, AI-driven research and patent intelligence for your innovation.

Curved glass, preparation method thereof and electronic equipment

A curved glass and glass technology, applied in glass manufacturing equipment, glass production, glass molding, etc., can solve the problems of inconspicuous effect and low yield rate of curved glass, reduce pitting and indentation, and avoid surface scratches Effect of damage, yield improvement

Active Publication Date: 2018-04-06
CSG HOLDING +1
View PDF5 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At the same time, before the mold with flat glass enters the heating section, an ion fan is used to remove the falling dust, and the temperature and pressure are adjusted in the hot bending section to reduce the influence of pitting and indentation, but the effect is not obvious. At present, there is no practice in the industry. An effective method to solve the problem of low yield rate of curved glass

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Curved glass, preparation method thereof and electronic equipment
  • Curved glass, preparation method thereof and electronic equipment
  • Curved glass, preparation method thereof and electronic equipment

Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0026] see figure 1 , the preparation method of the curved glass of an embodiment, comprises the following steps:

[0027] Step S110: providing flat glass, the flat glass has a first surface and a second surface opposite to each other, and protective layers are respectively formed on the first surface and the second surface.

[0028] Flat glass is untempered glass. Specifically, the flat glass is selected from one of soda-lime flat glass, medium-aluminum flat glass and high-alumina flat glass. Preferably, the flat glass is high alumina flat glass. High-alumina flat glass has high stability during hot bending and will not break and other problems.

[0029] In one embodiment, the thickness of the flat glass is 0.20mm-1.10mm.

[0030] Wherein, the material of the protective layer includes a high temperature resistant material. The high temperature resistant material has stable chemical properties, can maintain the same performance at 750°C, and does not react with glass. Sp...

Embodiment 1

[0076] The preparation process of the curved glass of the present embodiment is as follows:

[0077] (1) Using the method of screen printing, the slurry containing modified polyimide and solvent is respectively coated on the first surface and the second surface of a medium aluminum plate glass with a size of 1.25inch and a thickness of 0.20mm , form a slurry layer with a thickness of 2.5 μm, wherein, in the slurry, the mass volume ratio of the modified polyimide to the solvent is 45g:100mL, the solvent is a mixed solvent of DMA, NMP and BC, and in the mixed solvent, DMA and The volume ratio of NMP and BC is 65:20:15. Bake at 240° C. for 30 minutes for curing treatment to form a 1.5 μm protective layer.

[0078] (2) Put the medium-aluminum flat glass with a protective layer into a mold made of graphite, put the mold on the conveyor belt of the hot bending furnace, and feed nitrogen gas with a flow rate of 150L / min into the hot bending furnace. The medium-aluminum flat glass i...

Embodiment 2

[0081] The preparation process of the curved glass of the present embodiment is as follows:

[0082] (1) Select high-alumina flat glass with a thickness of 1.10mm, then cut it into 12.6inch, and then use Beijing Jingdiao CNC edging machine for edging treatment. The process parameters of edging treatment are: the feed speed is 600mm / s, The spindle speed is 25000r / min, the positioning height is 6mm, and the edging treatment time is 200s. The slurry containing the modified polyimide and the solvent is coated on the first surface and the second surface of the high-alumina flat glass respectively by spraying to form a slurry layer with a thickness of 4.5 μm, wherein, in the slurry , the mass volume ratio of modified polyimide and solvent is 60g:100mL, the solvent is a mixed solvent of DMA and BC, and the volume ratio of DMA and BC in the mixed solvent is 6:1. Bake at 150° C. for 60 minutes for curing treatment to form a protective layer with a thickness of 3.2 μm.

[0083] (2) Pu...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
thicknessaaaaaaaaaa
thicknessaaaaaaaaaa
thicknessaaaaaaaaaa
Login to View More

Abstract

The invention relates to curved glass, a preparation method thereof and electronic equipment. The preparation method of the curved glass comprises the following steps: plate glass is provided and hasa first surface and a second surface which are opposite, protective layers are formed on the first surface and the second surface respectively, and materials of the protective layers comprise a high-temperature-resistant material; the plate glass with the protective layers is subjected to hot bending treatment, and hot bent glass is obtained; the protective layers on the hot bent glass are removed, and the curved glass is obtained. By means of the preparation method of the curved glass, falling dust can be prevented from falling on the surface of the plate glass in the hot bending treatment process, and pitting and indentation are reduced effectively; meanwhile, the protective layers are formed on the surface of the plate glass, and the surface of the plate glass can be prevented being scratched in taking and placing processes. Therefore, with adoption of the preparation method of the curved glass, the problems of pitting, indentation and scratching of the curved glass in the production process are solved fundamentally, and the yield of the curved glass can be increased by 20% or more.

Description

technical field [0001] The invention relates to a curved glass, a preparation method thereof and electronic equipment. Background technique [0002] With the changes in the aesthetic requirements of the electronic consumer market for the appearance of electronic equipment and the advancement of technology, curved glass has gradually begun to be used in electronic equipment. As the cover of electronic equipment, curved glass is the first intuitive experience received by human vision and touch, and is a key component of human-computer interaction experience. Curved glass can not only enhance the novelty of the appearance of electronic devices, but also bring excellent touch feel. At present, curved glass has become the standard configuration of current electronic devices. [0003] Curved glass is mostly produced by hot bending process. In the hot bending process, the glass is simultaneously under the pressure of the mold when it is softened. When the cleanliness of the hot b...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): C03C17/28C03B23/02C03C23/00
CPCC03B23/02C03C17/28C03C23/0075C03C2218/355C03C2218/365Y02P40/57
Inventor 孙官恩张莉王琦毛利良马志锋
Owner CSG HOLDING