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

Toughened glass with scratch resistance and preparation method thereof

A technology for strengthening glass and scratch resistance, applied in the field of tempered glass with scratch resistance and its preparation, can solve the problems of low failure strain, lack of flexural strength, drop resistance, etc., and achieve strong chemical strengthening mechanical properties, The effect of strong performance and excellent scratch resistance

Pending Publication Date: 2022-03-25
SICHUAN HONGKE INNOVATION TECH CO LTD
View PDF6 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, these conventional scratch-resistant coatings and films often lack the benefits of flexural strength, drop resistance, and / or toughness in favor of low strain to failure

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
  • Toughened glass with scratch resistance and preparation method thereof
  • Toughened glass with scratch resistance and preparation method thereof
  • Toughened glass with scratch resistance and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0067] In another aspect, the present invention provides a method for preparing the above strengthened glass, comprising:

[0068] Step S1: According to the mole percentage of oxide, take SiO 2 63~69%, Al 2 o 3 10-17%, Na 2 O 5~14.5%, K 2 O 0.01~1%, Li 2 O 8~12%, MgO 2.4~4.6% and ZrO 2 0.01~2%, of which, the mole percentage satisfies SiO 2 / (K 2 O+Na 2 O+Li 2 O+MgO): 2.5 to 3.8 to obtain a mixed material;

[0069] Step S2: After melting the mixed materials, forming, annealing and cutting, the certificated glass is obtained;

[0070] Further, the outlet temperature T of the tin bath during the forming process is controlled so that the difference between the outlet temperature T of the tin bath and the transition point temperature Tg of the glass is below 50°C.

[0071] Further, the annealing time in the annealing step is 50-90 min; preferably, the annealing time is 60-80 min; more preferably, the annealing time is 65-75 min.

[0072] Further, the melting temperat...

Embodiment approach 1

[0084] Using the float forming process, the strengthened glass is prepared according to the following method:

[0085] 1. Preparation of raw materials: According to the composition ratios of Examples 1-10 in Table 2 and Comparative Examples 1-5 in Table 3, the raw materials of each oxide were mixed for 10 minutes to obtain a mixed material.

[0086] 2. Melting: Put the mixed material into the melting furnace for melting, adopt the double hot spot melting process, heat the mixed material to 1650 ℃, until the mixed material is completely melted.

[0087] 3. Forming: The melted glass flows through the tin bath, and is formed under the action of the edge puller, and the outlet temperature T of the tin bath is controlled so that the temperature T at the outlet of the tin bath is equal to the transition point temperature Tg of the certified glass. The difference between them is below 50°C.

[0088] 4. Annealing: The formed glass is annealed in an annealing kiln. The annealing time ...

Embodiment approach 2

[0100] Using the float forming process, the strengthened glass is prepared according to the following method:

[0101] 1. Prepare raw materials: according to the composition ratio in Table 4, take the raw materials of each oxide and mix them for 8 minutes to obtain the mixed materials.

[0102] Table 4. The percentage mole ratio of each oxide

[0103] SiO 2

Al 2 o 3

Na 2 o

K 2 o

Li 2 o

MgO ZrO 2

SiO 2 / (K 2 O+Na 2 O+Li 2 O+MgO)

65.78 12.00 6.30 0.60 10.40 3.60 1.30 3.15

[0104] 2. Melting: Put the mixed material into the melting furnace for melting, adopt double hot spot melting process, heat the mixed material at 1640°C until the mixed material is completely melted.

[0105] 3. Forming: The melted glass flows through the tin bath, and is formed under the action of the edge puller, and the outlet temperature T of the tin bath is controlled so that the temperature T at the outlet of the tin bath is equ...

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
depthaaaaaaaaaa
Vickers hardnessaaaaaaaaaa
widthaaaaaaaaaa
Login to View More

Abstract

The invention discloses toughened glass with scratch resistance and a preparation method thereof, and belongs to the field of glass manufacturing. The tempered glass is provided with a glass body, an ion exchange layer and an intrinsic layer are sequentially distributed on the glass body in the direction extending from the surface to the interior, and the sum of the depth of the ion exchange layer and the depth of the intrinsic layer is 1100 microns or below; the scratch-resistant critical load PL of the surface of the ion exchange layer is more than 35N, and the scratch width WL is less than 80mu m when the load is 1KG; the scratch-resistant critical load P0 of the layer is more than 30N, and the scratch width WO is less than 100mu m when the load is 1KG. The toughened glass has the advantages of strong performance, mechanical properties, good scratch resistance, and wide application prospect.

Description

technical field [0001] The invention belongs to the technical field of glass manufacturing, and in particular relates to a strengthened glass with anti-scratch performance and a preparation method thereof. Background technique [0002] Based on its excellent mechanical properties, mechanical properties and good optical properties, glass is widely used as a material for display screen appearance parts of mobile terminals such as smartphones, tablet computers, smart wearable devices, and vehicle displays. With the development of the display industry in recent years and the gradual improvement of people's requirements for smart terminal equipment, the requirements for glass as the material of the appearance of the display are also getting higher and higher, and the performance of the glass has gradually failed to meet the requirements, thus promoting the development of glass processing technology Development, such as chemical strengthening, etching and coating of glass. Accord...

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): C03C21/00C03C3/085C03B18/02
CPCC03C3/085C03C21/002C03B18/02Y02P40/57
Inventor 陈佳佳闫静董俊威刘再进张俊沈子涵李东
Owner SICHUAN HONGKE INNOVATION TECH CO LTD
Features
  • R&D
  • Intellectual Property
  • Life Sciences
  • Materials
  • Tech Scout
Why Patsnap Eureka
  • Unparalleled Data Quality
  • Higher Quality Content
  • 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com