Mobile phone curved glass panel and forming method thereof

A technology of curved glass and molding method, which is applied in glass molding, glass reshaping, glass production, etc. It can solve the problems of glass sticking to molds, etc., and achieve the effects of easy demoulding, fast heat dissipation, and improved stability

Active Publication Date: 2014-09-03
LENS TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0011] Another object of the present invention is to overcome the deficiencies of the prior art and provide a mobile phone curved glass panel molding method with simple process, convenient operation and high yield, so as to overcome the problem of glass sticking to molds in the glass thermoforming process of the prior art , effectively improve production efficiency

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0048] In this embodiment, a unidirectionally bent 3D mobile phone glass panel is prepared:

[0049] The direction of bending (X-direction or Y-direction):

[0050] Curved radian: X-direction: bending arc radius R=340mm, bending height: X-direction: height T=2.61mm, 1. Glass model: CORNING-2317 flat glass, softening temperature T=755°C.

[0051] 2. Mold preparation

[0052] Use grade: TTK-8, graphite with an average particle size of 2μm as raw materials to make concave and convex molds. The curvature of the cavity of the concave and convex molds is consistent with the curved curvature of the designed curved glass panel; the density of the prepared mold is 1.75 g / cm3, Shore hardness of 75, flexural strength of 80Mpa, surface roughness of the cavity of the concave and convex molds: Ra0.08 or less, to achieve a mirror effect;

[0053] 3. Forming of curved glass panels

[0054] Place CORNING-2318 flat glass between the graphite concave mold and the convex mold, and apply a pressure of 80 g / ...

Embodiment 2

[0062] In this embodiment, a bidirectionally curved 3D mobile phone glass panel is prepared:

[0063] The direction of bending (X-direction and Y-direction simultaneously bend towards Z-axis direction);

[0064] Curved radian: X direction: bending arc radius R=140mm, Y direction: bending arc radius R=3000mm; bending height: X direction: height T=5.0mm, Y direction: T=0.5mm;

[0065] 1. Glass model: CORNING-2318 flat glass 2318, softening temperature T=768℃.

[0066] 2. Mold preparation

[0067] Use grade: TTK-8, graphite with an average particle size of 1.8μm as raw materials to make concave and convex molds. The curvature of the cavity of the concave and convex molds is consistent with that of the designed curved glass panel; the density of the prepared mold is 1.80g / cm3, Shore hardness of 80, flexural strength of 83Mpa, surface roughness of the cavity of the concave and convex molds: Ra5nm or less, to achieve a mirror effect;

[0068] 3. Forming of curved glass panels

[0069] Place CO...

Embodiment 3

[0077] In this embodiment, a 3D mobile phone glass panel curved on both sides is prepared:

[0078] Bending direction X: starting from the outermost edge of the glass, and taking 15 towards the center as the bending centerline;

[0079] Curved radian: X direction: bending arc radius R=15mm, bending height: Z direction: height T=2.30mm,

[0080] 1. Glass model: CORNING-2320 flat glass 2320, softening temperature=789℃.

[0081] 2. Mold preparation

[0082] Use grade: TTK-8, graphite with an average particle size of 1.9μm as raw materials to make concave and convex molds. The curvature of the cavity of the concave and convex molds is consistent with the curved curvature of the designed curved glass panel; the density of the prepared mold is 1.78g / cm3, Shore hardness of 78, flexural strength of 81Mpa, surface roughness of the cavity of the concave and convex molds: Ra5.0nm or less, to achieve a mirror effect;

[0083] 3. Forming of curved glass panels

[0084] Place CORNING-2318 flat glass b...

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Abstract

The invention discloses a mobile phone curved glass panel and a manufacturing method of the mobile phone curved glass panel. A curved glass panel body is formed by bending a mobile phone panel body toward the same side in an arc shape with the center line of the mobile phone panel body in the X-axis direction or the Y-axis direction as a center, or bending the periphery of the mobile phone panel body toward the same side in an arc shape with the center point of the mobile phone panel as the center, or the mobile phone curved glass panel comprises a main panel and curved panels. The curved panels are formed by bending one or more side edges of the main panel. The multiple curved panels are bent toward the same side relative to the main panel. The forming method includes the three steps of manufacturing a planar glass panel, manufacturing a graphite die and forming the curved glass panel. The good lubricating performance of graphite is used, through exerting certain pressure for deformation, heat deformation is achieved at the temperature below a glass softening point, the manufactured product is high in precision, the designing requirements of a 3D mobile phone glass panel are met, large-scale industrial production can be achieved, production cost can be reduced, and the requirement for personalized and fashionable mobile phones can be met for people.

Description

Technical field [0001] The invention discloses a mobile phone curved glass panel and a forming method thereof; it belongs to the technical field of mobile phone panel preparation. Background technique [0002] A mobile phone with a curved glass panel is usually called a 3D mobile phone in the industry. The curved glass panel of a mobile phone is called a 3D glass panel. [0003] Traditional mobile phone panels are usually flat glass, but this single style cannot satisfy people's pursuit of fashion and individualization. Since the shape of the human body is curved, the mobile phone cannot be in contact with the human body when it is carried around. Especially with the development of smart phones, consumers are increasingly chasing the multiple functions of the mobile phone, and the screen is getting bigger and bigger. The human body fits tightly, making the human body very uncomfortable. In addition, the earpiece and microphone of the tablet phone are placed at both ends of the ph...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04M1/02C03B23/03
CPCY02P40/57
Inventor 周群飞饶桥兵汤金慧
Owner LENS TECH
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