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
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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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