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Method for preparing mobile phone back cover by efg guided mold method

A technology of mobile phone back cover and guided mode method, which is applied in chemical instruments and methods, grinding machine tools, manufacturing tools, etc., can solve the problems of cost reduction, low strength, and affecting signal transmission, etc., and achieve high efficiency and small grinding amount , The effect of low processing cost

Active Publication Date: 2020-12-11
江西伟嘉晶创光电科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Since the evolution of the back cover of smartphones, since the back cover of the plastic phone is not wear-resistant and has no texture, and the metal back cover affects the signal transmission, the plastic and metal back cover can no longer meet the market demand. Driven by the promotion, although the glass back cover and the ceramic back cover both stand out and become the new darlings of the market, but because the glass back cover cannot carry out wireless charging, the ceramic back cover is easy to break and the strength is not high, while the sapphire back cover has good light transmission Sex, signal conductivity, electrical insulation, high hardness, etc., will be replaced by sapphire. The cost of traditional sapphire mobile phone back cover using KY method has been high, and it is difficult to open the market. However, with the advancement of technology, EFG With the maturity of the guided mode method, the cost of preparing the back cover of sapphire mobile phones using the EFG method will drop significantly

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0058] Embodiment 1, the method for preparing the back cover of mobile phone by EFG guided mold method, wherein: comprise the following steps

[0059] One, the production of raw material, described raw material is sapphire crystal

[0060] 2. Slicing the sapphire crystal raw material;

[0061] 3. After cutting into sections, the raw materials of each section are grinded on both sides;

[0062] 4. According to the customer's size requirements, laser cutting is carried out on the raw materials to make their sizes meet the requirements;

[0063] 5. Then carry out Jingdiao 2.5d fine grinding;

[0064] Sixth, the final polishing to form a finished product.

Embodiment 2

[0065] Embodiment 2, the method for preparing the back cover of a mobile phone by the EFG guided mode method, wherein:

[0066] 1. Multi-station single-wire cutting machine is used for cutting sapphire crystal raw materials;

[0067] 2. Double-sided grinding adopts double-sided grinding machine;

[0068] 3. Fiber laser cutting machine is used for laser cutting;

[0069] 4. Jingdiao 2.5d fine grinding adopts Beijing Jingdiao machine;

[0070] 5. Polishing uses a polishing machine. All the other are with embodiment 1.

Embodiment 3

[0071] Embodiment 3, the method for preparing the back cover of a mobile phone by the EFG guided mold method, wherein: the production of raw materials is prepared by the EFG guided mold method, and the production steps include,

[0072] 6. Inspection and preparation of equipment before furnace loading;

[0073] 7. Raw material selection, crucible feeding, furnace installation;

[0074] 8. Seal the furnace and vacuumize;

[0075] Nine, heating material;

[0076] 10. Crystal growth process control. All the other are with embodiment 1.

[0077] 4. The method of preparing the back cover of the mobile phone by the EFG guided mold method, wherein: the inspection and preparation of the equipment before loading the furnace, specifically includes the following steps:

[0078] 1. Equipment inspection and preparation:

[0079] 1. Before loading, check that the water inlet pressure is 0.25~0.3MPa to ensure that the waterways are unblocked, and check whether there is any water leakage...

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Abstract

The invention discloses a method for preparing mobile phone rear covers through an edge-defined film-fed growth (EFG) technique. The method includes the steps that firstly, raw materials are produced,and sapphire crystals serve as the raw materials; secondly, the sapphire crystal raw materials are segmented; thirdly, after segmenting, double-faced grinding is conducted on each section of the rawmaterials; fourthly, according to size requirements of customers, laser cutting is conducted on the raw materials, so that the sizes of the raw materials meet requirements; fifthly, carving 2.5d accurate grinding is conducted; and sixthly, finally finished products are formed through polishing.

Description

technical field [0001] The invention relates to the field of making the back cover of a mobile phone, in particular to a method for preparing the back cover of a mobile phone by an EFG guided mold method. Background technique [0002] Since the evolution of the back cover of smartphones, since the back cover of the plastic phone is not wear-resistant and has no texture, and the metal back cover affects the signal transmission, the plastic and metal back cover can no longer meet the market demand. Driven by the promotion, although the glass back cover and the ceramic back cover both stand out and become the new darlings of the market, but because the glass back cover cannot carry out wireless charging, the ceramic back cover is easy to break and the strength is not high, while the sapphire back cover has good light transmission Sex, signal conductivity, electrical insulation, high hardness, etc., will be replaced by sapphire. The cost of traditional sapphire mobile phone back...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B24B29/02B24B37/08B28D5/00B28D5/04B23K26/362C30B15/34C30B29/20
CPCB24B29/02B24B37/08B28D5/00B28D5/045B23K26/361C30B15/34C30B29/20
Inventor 季礼明张振志李国平韦大勇陈海兵张万林桂贤军
Owner 江西伟嘉晶创光电科技有限公司