Manufacturing method for reinforced glass substrate, and reinforced glass substrate

A technology for strengthening glass and manufacturing methods, which can be used in transportation and packaging, thin material handling, etc., and can solve problems such as display damage

Inactive Publication Date: 2015-04-01
NIPPON ELECTRIC GLASS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In these uses, various operations are performed on the monitor, but the monitor may be damaged at this time

Method used

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  • Manufacturing method for reinforced glass substrate, and reinforced glass substrate
  • Manufacturing method for reinforced glass substrate, and reinforced glass substrate
  • Manufacturing method for reinforced glass substrate, and reinforced glass substrate

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0128] The present invention will be described below based on examples. However, the present invention is not limited in any way by the following examples. The following examples are merely illustrations.

[0129] Tables 1 to 3 show the glass composition and properties of the strengthened glass substrate of the present invention. In addition, the expression "not" in the table means not measured.

[0130] [Table 1]

[0131]

[0132] [Table 2]

[0133]

[0134] [table 3]

[0135]

[0136] Each sample in the table was prepared as follows. First, glass raw materials were prepared so as to have the glass composition in the table, and melted at 1580° C. for 8 hours using a platinum boat. Thereafter, the molten glass is poured onto a carbon plate to form it into a plate shape. Various characteristics were evaluated about the obtained glass substrate.

[0137] The density is a value measured by the known Archimedes method.

[0138] The strain point Ps and the anneali...

Embodiment 2

[0150] Using sample No. 10 of [Example 1], the influence of the inclination angle of the glass substrate, the position of the inclined support portion, and the position of the connecting member on the warpage amount of the strengthened glass substrate was investigated.

[0151] [Experiment 1]

[0152] First, use the figure 2 The same support jig (Type A) as the one shown, simulates a tempered glass substrate (long side dimension 1500mm x short side dimension 1200mm x plate thickness 0.3mm, long side dimension 1500mm x short side dimension 1200mm x plate thickness 0.5mm) Amount of warpage. Figure 9 It is an explanatory drawing for demonstrating the experiment of [Example 2], and is a conceptual drawing which looked at the glass substrate G from above. Such as Figure 9 As shown, let the long side dimension of the glass substrate G be L, and let the short side dimension of the glass substrate be l. Moreover, let A be the distance of the edge part of the short side (may als...

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Abstract

The present invention provides a manufacturing method for a reinforced glass substrate, characterized in that a glass raw material is melt, formed into a plate and, after a glass substrate with a long side of 1000mm or more and a short side of 500mm or more is obtained, the glass substrate is subjected to a ion exchange treatment in a tilted state and a compressive stress layer is formed on the surface of the glass plate.

Description

technical field [0001] The present invention relates to a method for producing tempered glass and a tempered glass substrate, and more particularly to a method for producing tempered glass and a tempered glass substrate suitable as cover glasses for large televisions, digital signage, touch panel displays, electronic blackboards, solar cells, and the like . Background technique [0002] Devices with user interfaces such as electronic blackboards tend to become increasingly popular. [0003] In these uses, various operations are performed on the display, but the display may be damaged at this time. One of solutions to this problem is to use a glass substrate as a protective member. The glass substrate is required to have (1) high mechanical strength, (2) low density, (3) large size, (4) be able to be supplied in large quantities at low cost, (5) have excellent cell quality, and the like. In particular, in order to satisfy the condition (1), an ion-exchange-treated glass su...

Claims

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Application Information

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Patent Type & AuthorityApplications(China)
IPC IPC(8): C03C21/00C03C3/083C03C3/085C03C3/091
CPCC03C21/002C03C3/083C03C3/085C03C3/093C03C4/18C03C2204/00Y10T428/315C03C3/091C03C21/00
Inventor村田隆加藤嘉成
OwnerNIPPON ELECTRIC GLASS CO LTD