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Preparation method and application of composite toughened glass

A technology for strengthening glass and glass, used in glass manufacturing equipment, glass furnace equipment, manufacturing tools, etc., can solve the problems of scratch resistance and anti-drop performance that cannot satisfy consumers, easy to produce micro-cracks, and glass brittleness. Achieve the effect of strengthening the glass body, improving the bending strength and fracture toughness, and improving the mechanical properties

Pending Publication Date: 2020-08-14
CHANGSHU JIAHE DISPLAY TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Traditional glass is highly brittle, prone to micro-cracks on the surface, and has low mechanical strength during actual use, involving performance indicators such as glass flexural strength, fracture toughness, and surface hardness.
Therefore, the traditional glass is used as the cover, and the scratch resistance and drop resistance of the product cannot meet the actual application of consumers.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 11

[0053] This embodiment provides a method for preparing composite strengthened glass, comprising the following steps:

[0054] 1) According to the following mole percentage: SiO 2 65%;Al 2 o 3 18%; Li 2 O5%; MgO6%; Na 2 O4%;P 2 o 5 1%;TiO 2 1%; Y 2 o 3 0%; La 2 o 3 0%; Ta 2 o 5 0%. Weigh the corresponding weight of SiO 2、Al 2 o 3 , Li 2 O, MgO, Na 2 O.P 2 o 5 、TiO 2 , Y 2 o 3 , La 2 o 3 、 Ta 2 o 5 Raw materials, and mix the raw materials evenly. The uniform mixing method can be V-shaped mixer and sieving method. Then put the uniformly mixed raw materials into a designated container at 1650°C for high-temperature melting. In order to speed up melting and improve the melting effect, you can introduce Stirring or bubbling, convective stirring can also be used at the same time, and then the molten glass is introduced into a container at 1680°C through a conduit for high-temperature clarification to obtain a clarified glass;

[0055] 2) The clarified molt...

Embodiment 12

[0060] This embodiment provides a method for preparing composite strengthened glass, comprising the following steps:

[0061] 1) According to the following mole percentage: SiO 2 63%;Al 2 o 3 17%; Li 2 O6%; MgO7%; Na 2 O5%;P 2 o 5 2%;TiO 2 0%; Y 2 o 3 0%; La 2 o 3 0%; Ta 2 o 5 0%. Weigh the corresponding weight of SiO 2 、Al 2 o 3 , Li 2 O, MgO, Na 2 O.P 2 o 5 、TiO 2 , Y 2 o 3 , La 2 o 3 、 Ta 2 o 5 Raw materials, and mix the raw materials evenly. The uniform mixing method can be V-shaped mixer and sieving method. Then put the uniformly mixed raw materials into a designated container at 1650°C for high-temperature melting. In order to speed up melting and improve the melting effect, you can introduce Stirring or bubbling, convective stirring can also be used at the same time, and then the molten glass is introduced into a container at 1680°C through a conduit for high-temperature clarification to obtain a clarified glass;

[0062] 2) Introduce the cla...

Embodiment 13

[0067] This embodiment provides a method for preparing composite strengthened glass, comprising the following steps:

[0068] 1) According to the following mole percentage: SiO 2 62%; Al 2 o 3 15%; 2 O5%; MgO9%; Na 2 O4%;P 2 o 5 1%;TiO 2 1%; Y 2 o 3 1%; 2 o 3 1%; Ta 2 o 5 1%. Weigh the corresponding weight of SiO 2 、Al 2 o 3 , Li 2 O, MgO, Na 2 O.P 2 o 5 、TiO 2 , Y 2 o 3 , La 2 o 3 、 Ta 2 o 5 Raw materials, and mix the raw materials evenly. The uniform mixing method can be V-shaped mixer and sieving method. Then put the uniformly mixed raw materials into a designated container at 1650°C for high-temperature melting. In order to speed up melting and improve the melting effect, you can introduce Stirring or bubbling, convective stirring can also be used at the same time, and then the molten glass is introduced into a container at 1680°C through a conduit for high-temperature clarification to obtain a clarified glass;

[0069] 2) Introduce the clarifie...

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Abstract

A preparation method of composite toughened glass comprises the following steps of: melting, clarifying and homogenizing all component raw materials of set glass to obtain molten glass without defectssuch as bubbles, stripes and the like; cooling the defect-free molten glass to a proper temperature, then adding a nanoscale ZrO2 crystal, and continuously stirring to obtain uniformly mixed molten glass; carrying out molding and annealing treatment on the uniformly mixed molten glass to obtain nanoscale ZrO2 crystal reinforced glass; carrying out efficient ion exchange chemical strengthening onthe reinforced glass to obtain composite toughened glass which is high in surface pressure stress, large in ion exchange layer depth and capable of meeting cover plate protection. The composite toughened glass provided by the invention has effectively-improved strength and toughness and improved mechanical properties, and can be widely applied to the fields of cover plates of electronic equipment,household appliances, display devices and the like.

Description

technical field [0001] The invention relates to the technical field of glass products, in particular to glass capable of composite strengthening and its preparation method and application. Background technique [0002] With the rapid development of the optoelectronic industry and the continuous improvement of people's requirements for the use of instruments and equipment, glass cover plates have become mainstream products in the fields of electronic equipment, household appliances, and display technology due to their excellent mechanical and optical properties, especially in smart phones. , Tablet PC is particularly prominent. [0003] Traditional glass is highly brittle, prone to micro-cracks on the surface, and has low mechanical strength during actual use, involving performance indicators such as glass flexural strength, fracture toughness, and surface hardness. Therefore, the traditional glass is used as the cover plate, and the scratch resistance and drop resistance of...

Claims

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Application Information

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IPC IPC(8): C03C14/00C03C3/097C03C1/00C03B5/225C03B5/187C03B5/173C03C21/00
CPCC03C14/006C03C3/097C03C1/00C03B5/225C03B5/2252C03B5/187C03B5/173C03C21/00
Inventor 张福军瞿述良周卫卫
Owner CHANGSHU JIAHE DISPLAY TECH CO LTD
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