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Cover plate glass and processing method for improving 4PB value of cover plate glass

A technology of cover glass and processing method, which is applied in glass manufacturing equipment, stone processing tools, glass cutting devices, etc., can solve the problem that the 4PB value of cover glass cannot meet the higher demands of market development, and achieves the optimization of finished product quality, Simple operation, 4PB value improvement effect

Pending Publication Date: 2022-01-04
CAIHONG GRP SHAOYANG SPECIAL GLASS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a cover glass and a processing method for increasing the 4PB value of the cover glass, which solves the problem that the 4PB value of the currently processed cover glass cannot meet the higher demand of market development

Method used

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  • Cover plate glass and processing method for improving 4PB value of cover plate glass
  • Cover plate glass and processing method for improving 4PB value of cover plate glass
  • Cover plate glass and processing method for improving 4PB value of cover plate glass

Examples

Experimental program
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Effect test

Embodiment 1

[0031] The invention discloses a processing method for increasing the 4PB value of cover glass, which comprises the following steps:

[0032] (1) Use the cover glass as the raw material, cut into several samples, the sample size is 141mm×71mm×0.7mm, select the samples that meet the requirements, as the original piece;

[0033] (2) Carry out CNC processing on the original film, first rough trimming twice, and then finish trimming once, and the size of the processed cover glass is 140mm×70mm×0.7mm.

[0034] The processing parameters of rough repair and fine repair are: the spindle speed is 16000rpm, and the feed speed is 1000mm / min.

[0035] The cooling method is water spray, the first rough trimming and the second rough trimming cut-off are both 0.2mm, and the intensive trimming cut-off is 0.1mm.

[0036] Take 5 points to measure the finished product after processing, get 5 values, take the average value as the measurement result of 4PB value.

[0037] The feed speed was fixe...

Embodiment 10

[0041] The invention discloses a processing method for increasing the 4PB value of cover glass, which comprises the following steps:

[0042] (1) Use the cover glass as the raw material, cut into several samples, the sample size is 141mm×71mm×0.7mm, select the samples that meet the requirements, as the original piece;

[0043] (2) Carry out CNC processing on the original film, first rough trimming twice, and then finish trimming once, and the size of the processed cover glass is 140mm×70mm×0.7mm.

[0044] The processing parameters of rough repair and fine repair are: the spindle speed is 44000rpm, and the feed speed is 400mm / min.

[0045] The cooling method is water spray, the first rough trimming and the second rough trimming are both 0.2mm, and the intensive trimming is 0.1mm.

[0046] The spindle speed was fixed at 44000 rpm, and the feed rate was increased at intervals of 200 to obtain Examples 10-18. The results are shown in Table 2.

[0047] Table 2.1 Effect of feed ra...

Embodiment 33

[0057] The invention discloses a processing method for increasing the 4PB value of cover glass, which comprises the following steps:

[0058] (1) Use the cover glass as the raw material, cut into several samples, the sample size is 141mm×71mm×0.7mm, select the samples that meet the requirements, as the original piece;

[0059] (2) Carry out CNC processing on the original film, first rough repair twice, and then finish twice, and the size of the processed cover glass is 140mm×70mm×0.7mm.

[0060] The processing parameters of rough repair and fine repair are: the spindle speed is 44000rpm, and the feed speed is 800mm / min.

[0061] The cooling method is water spray, the first rough cut is 0.2mm, the second rough cut is 0.18mm, the first finish is 0.1mm, and the second finish is 0.1mm. The cut-off amount is 0.02mm.

[0062] Fix the spindle speed to 44000rpm, feed speed to 800mm / min, adjust the amount of cut for rough repair and fine repair, and obtain Examples 33-41, the results...

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Abstract

The invention belongs to the technical field of cover plate glass processing, and relates to a processing method for improving the 4PB value of cover plate glass, wherein the processing method comprises the steps: (1) cutting a glass raw material into a plurality of samples, and selecting the samples meeting preset requirements as raw sheets; and (2) carrying out CNC processing on the raw sheets, firstly carrying out rough trimming and then carrying out fine trimming to prepare a finished product of cover plate glass, wherein the cutting depth of rough trimming is larger than the cutting depth of fine fine trimming, and according to the processing parameters of rough trimming, the rotating speed of a main shaft ranges from 32000 rpm to 48000 rpm, and the feeding speed ranges from 400 mm / min to 1600 mm / min; and the processing parameters of the fine trimming comprise that the rotating speed of the main shaft is 36000-50000 rpm, and the feeding speed is 400-1600 mm / min. The 4PB value of the processed cover plate glass is 690-927, compared with the cover plate glass in the current market, the cover plate glass has the advantages that the 4PB value can be obviously improved, the operation is simple, economical and easy to control, and the problem of glass processing quality can be effectively solved.

Description

technical field [0001] The invention belongs to the technical field of cover glass processing, in particular to a cover glass and a processing method for increasing the 4PB value of the cover glass. Background technique [0002] With the development and promotion of 5G communication and wireless charging technology, improving signal transmission efficiency has become the main topic of intelligent electronic products. Because metal will shield the signal, the metal and plastic back cover will be replaced by a "double glass structure", that is, the front and rear covers of the collection are made of glass. Currently, CNC is generally used to process the cover glass. During the processing process, from beginning to end , fixed speed, only changing the feed speed during rough repair and finish repair, resulting in the maximum 4PB value of the currently processed cover glass can only reach 650Mpa, which cannot meet the market development needs. Contents of the invention [000...

Claims

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Application Information

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IPC IPC(8): C03B33/02B28D1/00B28D1/18B28D7/02
CPCC03B33/02B28D1/00B28D1/18B28D7/02
Inventor 李子沛仵小曦李靖波左兴何强
Owner CAIHONG GRP SHAOYANG SPECIAL GLASS CO LTD