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Method and apparatus for surface scratch repair

A technology for scratches and equipment, applied in metal processing equipment, grinding/polishing equipment, machine tools suitable for grinding workpiece planes, etc., can solve the problem of damaging the internal circuit of electronic products, does not allow disassembly and separation, and cannot meet the needs of use Requirements and other issues to achieve the effect of removing or reducing scratches and restoring smoothness and cleanliness

Active Publication Date: 2022-02-01
SHANGHAI DONG-JING AUTOMATIC SYST CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this polishing method requires the use of polishing fluid during processing, and will generate a lot of dust
Since these liquids and dust can damage the internal circuits of electronic products, they are not suitable for processing the glass of electronic products.
Especially when the strengthened glass is not allowed to be disassembled and separated from the display screen and electronic circuit after assembly, or it is extremely difficult to separate, or the separation will cause damage to the display screen and circuit or greatly reduce the performance index, the existing polishing method and equipment are unable to meet the needs of use

Method used

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  • Method and apparatus for surface scratch repair
  • Method and apparatus for surface scratch repair
  • Method and apparatus for surface scratch repair

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0130] Use the equipment for repairing surface scratches of the present invention to repair the glass surface of the mobile phone according to the following process conditions.

[0131] 1. Coarse polishing process conditions

[0132] (1) Use ABRALON J3 500 abrasive sheet, wherein the particle size of the abrasive is 30 microns;

[0133] (2) above-mentioned abrasive sheet is installed on the circular grinding disc frame that diameter is 6 inches (or 6 inches);

[0134] (3) The speed of the grinding disc is 3500 revolutions per minute (RPM), and the direction is clockwise (positive);

[0135] (4) The pressure value when the grinding disc is in contact with the glass surface is 1N;

[0136] (5) Coarse throwing time: 3 minutes;

[0137] (6) Coarse throwing path: proceed along the periphery, continuously reducing the radius until the middle; and

[0138] (7) The number of cycles is 8 times.

[0139] 2. Coarse throwing process

[0140] (1) The mechanical arm automatically shif...

Embodiment 2

[0163] Except that the rough polishing process uses ABRALON J3 600, the grinding disc speed is 4000 revolutions per minute (RPM), and the pressure when the grinding disc is in contact with the glass surface is 3N, the rough polishing and mirror polishing processes are carried out in the same manner as in Example 1.

[0164] In Example 2, the surface of the mobile phone glass is smooth after the rough polishing and mirror polishing processes, without visible scratches.

Embodiment 3

[0166] Except for fixing the position of the mobile phone and grabbing the abrasive disc by the mechanical arm to carry out the rough polishing and mirror polishing process, the rough polishing and mirror polishing process is carried out in the same manner as in Example 1.

[0167] In Example 3, the surface of the mobile phone glass is smooth after the rough polishing and mirror polishing processes, without any scratches visible to the naked eye.

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Abstract

The invention relates to a method and equipment for repairing scratches on the strengthened glass surface. The method comprises: (1) under the condition that there is no need for polishing liquid, the surface of the substrate is polished using abrasives, wherein, in the polishing process, the contact pressure between the abrasive and the surface of the substrate is 0.8-4N, the temperature of the surface of the substrate is Carry out under the condition of less than 40 ℃; (2) Under the condition of not needing the presence of polishing liquid, use abrasive to carry out specular treatment on the surface of the substrate after step (1), wherein, the specular treatment is carried out when the abrasive is in contact with the substrate The pressure is 0.4-2N, and the substrate surface temperature is lower than 25°C. The method and device of the invention can effectively remove or reduce the scratches on the strengthened glass surface of the electronic product without dismantling the machine, restore the smoothness and cleanness of the glass, and achieve the mirror effect.

Description

technical field [0001] The invention relates to a method and equipment for repairing surface scratches, in particular to a digital polishing method and equipment for repairing scratches on a strengthened glass surface. [0002] technical background [0003] At present, the surface of everyday electronic products (including most brands of mobile phones, tablets and smart watches, etc.) is usually covered with strengthened glass. In use, this strengthened glass often develops scratches or scratches. A need exists for treating, surface polishing and / or scratch repairing such scratched or scratched strengthened glass surfaces. [0004] In the prior art, the polishing method for mobile phone panel glass includes utilizing the mechanical action and chemical action between the polishing abrasive and the mobile phone panel glass surface to complete the polishing of the glass material; the polishing abrasive can usually be a polishing liquid or a polishing powder. However, this poli...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B24B1/00B24B7/24B24B55/02B24B49/00B24B41/00B24B51/00B24B41/053
CPCB24B1/00B24B7/241B24B7/242B24B55/02B24B49/00B24B41/00B24B51/00B24B41/053B24B49/14B24B49/16B24B49/006B24B7/245B24B7/247B24B27/0069B23Q7/047B24B27/033
Inventor 陈永强林朗熙
Owner SHANGHAI DONG-JING AUTOMATIC SYST CO LTD
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