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Curved glass and its manufacturing method and application

A technology of curved glass and a manufacturing method, which is applied to glass manufacturing equipment, glass tempering, manufacturing tools, etc., can solve the problems of high production cost of curved glass, high requirements for polishing equipment, and poor deformation recovery force of curved glass.

Active Publication Date: 2021-05-11
VITALNK IND SHENZHEN +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the current manufacturing process of curved glass includes steps such as hot bending, forming, and polishing of 2D glass. At the same time, this process has high requirements for hot bending and polishing equipment, so that the production cost of the entire curved glass is relatively high.
At the same time, the deformation recovery force of this kind of curved glass made by hot pressing deformation process is poor, so that the ink decoration and lamination of curved glass require special equipment, and the production cost is further increased, which is not conducive to the popularization of curved glass products.

Method used

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  • Curved glass and its manufacturing method and application
  • Curved glass and its manufacturing method and application
  • Curved glass and its manufacturing method and application

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0054] The curved glass of this embodiment is produced by the method for producing curved glass in the above embodiment, wherein the raw glass sheet used is Corning Gorilla Glass III with a thickness of 0.68mm, and the temperature of the first tempering treatment is 420°C. The time is 1h, the temperature of the second tempering treatment is 420°C, the time is 2h, and the radius of the curved surface is 2700mm. The stress layer depth (DOL, unit μm) and stress (CS, unit Mpa) of the curved glass obtained in this embodiment were tested, and the test results are shown in Table 1 below:

[0055] Table 1

[0056]

Embodiment 2

[0058] The curved glass of this example is produced by the method for producing curved glass in the above embodiment, wherein the raw glass sheet used is Corning Gorilla third-generation glass raw material with a thickness of 0.68mm, and the temperature of the first tempering treatment is 420°C , the time is 1.5h, the temperature of the second tempering treatment is 420°C, the time is 1.5h, and the radius of the curved surface is 2160mm. The stress layer depth (DOL, unit μm) and stress (CS, unit Mpa) of the curved glass obtained in this embodiment were tested, and the test results are shown in Table 2 below:

[0059] Table 2

[0060]

Embodiment 3

[0062] The curved glass of this embodiment is produced by the method for producing curved glass in the above embodiment, wherein the raw glass sheet used is CSG white glass raw material with a thickness of 0.33mm, the temperature of the first tempering treatment is 420°C, and the time is 1.5h, the temperature of the second tempering treatment is 420°C, the time is 1.5h, and the radius of the curved surface is 1846mm. The stress layer depth (DOL, unit μm) and stress (CS, unit Mpa) of the curved glass obtained in this embodiment were tested, and the test results are shown in Table 3 below:

[0063] table 3

[0064]

[0065]

[0066] The curved glass produced in Example 1, Example 2, and Example 3 all have good elastic recovery force, and have certain elastic deformation and curved surface self-recovery characteristics.

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Abstract

The invention relates to a curved glass and its production method and application. The production method of the curved glass comprises the following steps: placing a raw glass sheet in a mold with a preset curved surface shape, clamping and fixing it; The raw glass sheet is placed in a potassium salt solution for the first tempering treatment, cooled, and cleaned to obtain a semi-tempered glass sheet; the semi-tempered glass sheet clamped by the mold is placed in a potassium salt solution for the second step. Secondary tempering treatment, cooling, cleaning, obtaining tempered glass sheet, that is. The curved glass manufactured by the method for manufacturing the curved glass has good deformation recovery force because the concave surface and the convex surface have different stress layer depths and toughening strengths, and can significantly save production costs.

Description

technical field [0001] The invention relates to the technical field of glass processing, in particular to a curved glass and a manufacturing method and application thereof. Background technique [0002] With the development of technology, curved glass is more and more widely used in fields such as electronic products. However, the current manufacturing process of curved glass includes steps such as hot bending, forming, and polishing of 2D glass. This process also requires high bending and polishing equipment, so that the production cost of the entire curved glass is relatively high. At the same time, the deformation recovery force of this kind of curved glass made by hot pressing deformation process is poor, so that the ink decoration and bonding of curved glass require special equipment, and the production cost is further increased, which is not conducive to the popularization of curved glass products. . Contents of the invention [0003] Based on this, it is necessary...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C03B27/012C03C21/00C03C17/00
CPCC03B27/012C03C17/002C03C21/002
Inventor 付勇刘国祥李可峰许仁王伟
Owner VITALNK IND SHENZHEN
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