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3D curved glass panel forming method and 3D curved glass panel obtained through forming method

A molding method and glass plate technology, applied in glass molding, glass reshaping, glass manufacturing equipment, etc., can solve the problems of rapid oxidation of molding molds, high molding costs, and inability to realize material/mold reuse, etc. To achieve the effects of inhibiting oxidation, realizing reuse, saving energy and cost

Active Publication Date: 2017-08-11
SICHUAN XUHONG OPTOELECTRONICS TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] However, the hot bending forming methods so far generally have the problems of rapid oxidation of the forming mold due to the high forming temperature, the inability to realize the reuse of materials / moulds, and the high cost of forming
The existence of these problems hinders the development of industrial mass production / molding of 3D curved glass sheets

Method used

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  • 3D curved glass panel forming method and 3D curved glass panel obtained through forming method
  • 3D curved glass panel forming method and 3D curved glass panel obtained through forming method
  • 3D curved glass panel forming method and 3D curved glass panel obtained through forming method

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preparation example Construction

[0081] The raw glass plate made according to the above-mentioned preparation method and proportion usually has the following characteristics:

[0082] ①Strain point: 550℃±20℃.

[0083] ②Annealing point: 605℃±20℃.

[0084] ③Deformation point: 685℃±20℃.

[0085] ④ Softening temperature: 830℃±20℃.

[0086] ⑤Thermal expansion coefficient: 98.0±2×10 -7 / °C.

[0087] (loading process)

[0088] The loading step is a step of loading the forming mold and the raw glass plate. Specifically, the raw glass plate is put into the forming mold manually or mechanically, positioned and fixed, and then transported to the preheating zone. Specifically, the raw glass plate and the mold are transported to the hot bending equipment for preheating through the entrance of the hot bending equipment. heating zone. The material of the molding die is preferably ceramic or graphite, more preferably graphite. The size of the forming mold is determined according to the characteristics of the glass sa...

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Abstract

The invention provides a specific 3D curved glass panel forming method which can inhibit oxidation of forming molds and achieve material / mold reutilization, energy and cost saving. The 3D curved glass panel forming method comprises at least the following processes of a loading process where a raw material glass panel is put into a forming mold and loaded as the forming mold, a forming with hot bending process where the raw material glass panel is compressed as a curved glass panel in a 3D surface shape corresponding to the forming mold after being heated up to a temperature of forming with hot bending, an annealing process where the curved glass panel obtained in the forming with hot bending process is annealed, a cooling process where the annealed curved glass panel is subjected to cooling molding, and an unloading process where the mold is unloaded and the 3D curved glass panel is output.

Description

technical field [0001] The invention relates to a forming method of a 3D curved glass plate and a 3D curved glass plate obtained by the forming method. More specifically, the present invention relates to a forming method capable of forming a specific flat glass into a 3D curved glass plate suitable for use in electronic display devices, as well as the 3D curved glass plates obtained through the forming method that are suitable for use in electronic display devices, especially suitable for use as electronic display devices. 3D curved glass panels for device screen protection glass. Background technique [0002] In recent years, the development of non-planar but curved glass cover plates for digital products has become popular. After 2D glass, 2.5D and 3D curved glass plate products have appeared in the market. [0003] So far, the glass cover plates used for digital products are roughly divided into 2D glass, 2.5D glass and 3D glass. Among them, 2D glass is ordinary pure fla...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C03B23/03C03B25/04C03C3/093
Inventor 刘再进李青宫汝华何亮李盛印
Owner SICHUAN XUHONG OPTOELECTRONICS TECH
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