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Preparation method for integral glass-imitated 3D curved surface cover plate

A 3D, curved surface technology, applied in the field of preparation of integrated imitation glass 3D curved surface cover plate, can solve the problems of complex processing technology of 3D glass curved surface cover plate, the impact resistance needs to be further improved, and the glass substrate is not resistant to stretching, etc. To achieve the effect of strong plasticity, good impact resistance at high and low temperature, and good corrosion resistance

Inactive Publication Date: 2018-06-29
KUNSHAN SANJING SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The processing technology of 3D glass curved cover plate is complicated and difficult, resulting in low processing yield and high cost, and the glass substrate has defects such as not being resistant to stretching, difficult to realize complex three-dimensional structure, low toughness, and poor impact resistance.
Therefore, the degree of realization, toughness, and impact resistance of the complex three-dimensional structure of the cover plate in the prior art need to be further improved

Method used

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  • Preparation method for integral glass-imitated 3D curved surface cover plate

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preparation example Construction

[0032] The preparation method of the integrated imitation glass 3D curved surface cover plate of the present invention, described preparation method comprises the following steps:

[0033] 1) 3D injection molding: use optical grade transparent plastic for 3D injection molding;

[0034] 2) hardening treatment: hardening the material after step 1) 3D injection molding;

[0035] 3) OPVD coating: performing OPVD coating on the material after step 2) hardening treatment;

[0036] 4) Spraying: spraying the material after step 3) OPVD coating to obtain an integrated imitation glass 3D curved surface cover plate.

[0037] Among them, the injection molding process adopts optical-grade compression molds; high-precision optical-grade injection molding machines compress injection molding. The OPVD coating process uses a vacuum evaporation machine.

Embodiment 1

[0039] The preparation method of the integrated imitation glass 3D curved surface cover plate of the present embodiment comprises the following steps:

[0040] 1) 3D injection molding: 3D injection molding is carried out by using optical-grade transparent plastic through the process of material melting → upper mold → debugging → mold clamping → injection filling → pressure holding molding → cooling → mold opening, and the melting temperature of the material is 210 ° C. The injection pressure of injection filling is 130MPa, the injection time is 2s, the pressure of pressure-holding molding is 40MPa, and the time of pressure-holding molding is 40s;

[0041] 2) Hardening treatment: harden the material after step 1) 3D injection molding with hardening solution, the main component of the hardening solution is polyurethane acrylate, and the hardening time is 10s;

[0042] 3) OPVD coating: OPVD coating is carried out on the material after step 2) through the process of rack → vacuumi...

Embodiment 2

[0046] The preparation method of the integrated imitation glass 3D curved surface cover plate of the present embodiment comprises the following steps:

[0047] 1) 3D injection molding: 3D injection molding is carried out by using optical-grade transparent plastic through the process of material melting → upper mold → debugging → mold clamping → injection filling → pressure-holding molding → cooling → mold opening. The melting temperature of the material is 220 ° C. The injection pressure of injection filling is 100MPa, the injection time is 3s, the pressure of pressure-holding molding is 50MPa, and the time of pressure-holding molding is 30s;

[0048] 2) Hardening treatment: harden the material after step 1) 3D injection molding with hardening solution, the main component of the hardening solution is polyurethane acrylate, and the hardening time is 15s;

[0049] 3) OPVD coating: OPVD coating is carried out on the material after step 2) through the process of rack → vacuuming →...

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Abstract

The invention provides a preparation method for an integral glass-imitated 3D curved surface cover plate. The preparation method includes the following steps: 1) 3D injection molding: carrying out 3Dinjection molding of an optical-graded transparent plastic; 2) hardening treatment: carrying out hardening treatment of the material after 3D injection molding of the step 1); 3) OPVD film plating: carrying out OPVD film plating of the material after hardening treatment of the step 2); and 4) spraying: carrying out spray treatment of the material after OPVD film plating of the step 3), to obtain the integral glass-imitated 3D curved surface cover plate. The integral glass-imitated 3D curved surface cover plate prepared by the preparation method has the advantages of strong plasticity, good impact resistance, low shielding of 5G signals, low electromagnetic wave loss, high hardness, and good abrasion resistance, corrosion resistance, high and low temperature impact and aging resistance, issuitable for mobile phones, wearing, intelligent household appliances, intelligent consumption electronic products and other 3C products, and can optimize and replace conventional metal and glass panels.

Description

technical field [0001] The invention belongs to the technical field of curved cover plates, and relates to a method for preparing an integrated imitation glass 3D curved cover plate. Background technique [0002] With the development of electronic technology and the increasing requirements of users on the user experience of terminal equipment, it is difficult for existing flat screens to meet the user's requirements. Therefore, concepts such as curved screens have emerged as the times require, such screens can achieve curved displays. However, due to various problems with the current screens, there are not many that can be produced in the market. [0003] The metal casing commonly used in the prior art is prone to signal interference to WIFI, NFC, and LIFI, while 3D glass or plastic cover can greatly improve the appearance and feel of the mobile phone. Therefore, at present, the metal casing is gradually changed to 3D glass when preparing the casing or a case made of plast...

Claims

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Application Information

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IPC IPC(8): B29C45/00B29C45/77B29C45/78C23C14/24
CPCB29C45/0053B29C45/77B29C45/78B29C2045/0079B29C2945/76498B29C2945/76531C23C14/24
Inventor 许一青齐立斌黄超
Owner KUNSHAN SANJING SCI & TECH
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