CN102424530A - Method for increasing compressive strength of cut toughened glass - Google Patents
Method for increasing compressive strength of cut toughened glass Download PDFInfo
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- CN102424530A CN102424530A CN2011102578205A CN201110257820A CN102424530A CN 102424530 A CN102424530 A CN 102424530A CN 2011102578205 A CN2011102578205 A CN 2011102578205A CN 201110257820 A CN201110257820 A CN 201110257820A CN 102424530 A CN102424530 A CN 102424530A
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- compression strength
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Abstract
The invention discloses a method for increasing the compressive strength of cut toughened glass, characterized by corroding the edge of the cut toughened glass through using a chemical corrosive agent, wherein, the chemical corrosive agent is a hydrofluoric acid solution. According to the invention, by processing the cut edge of the cut toughened (tempered) glass through chemical corrosion, the glass edge defect point (point breakage, edge breakage) is narrowed down from 0.05 mm to less than 0.01 mm, the edge sawtooth turns into smooth, the edge appearance turns into uniform regular crystals from irregular serration, thus the microstructure of the toughened glass edge is changed, the crushing stress thin spots are eliminated, the consistency of the compressive strength is achieved, and the glass strength reaches more than 350 MPa. By adopting the method of chemically corroding the edge of the cut toughened glass to increase the compressive strength, the advantages of realization of sheet process, high efficiency, greatly reduced operation staff, and high yield rate are achieved, thus the invention has huge advantages of production cost, and realizes the sheet process of the toughened (tempered) glass.
Description
Technical field
The present invention relates to a kind of treatment process of glass, relate in particular to a kind of method that improves toughened glass cutting back ultimate compression strength.
Background technology
At present, be made as example, carry out chemical tempering after the small pieces glass cutting with the COVER LENS of chemical tempering (claim again strengthen) glass industry; Three-point bending strength can reach more than the 350MPa, and big sheet glass carries out after chemical tempering cuts into small pieces again, and there is more collapsing some the cut edge; Form the thin spot of stress, the ultimate compression strength of glass is reduced greatly, three-point bending strength is reduced to below the 200Mpa; Can not satisfy client's demand fully; Thereby be confined to the small pieces processing procedure fully, so production efficiency, produce yield and receive very big restriction, production cost is high; Brought very big puzzlement for whole industry, the industry great amount of investment increases production capacity also can't change cover lens shortage situation.Existing toughened glass mobile phone cover (cover lens) can only adopt small pieces simple grain manufacture craft, and efficient is low, operator are many, process rate is low.
Summary of the invention
In view of this, the purpose of this invention is to provide a kind of method that improves toughened glass cutting back ultimate compression strength,,, realize large stretch of processing procedure to improve the ultimate compression strength of glass through the edge of chemical corrosion cutting back glass.
For solving the problems of the technologies described above, technical scheme of the present invention is:
A kind of method that improves toughened glass cutting back ultimate compression strength adopts the toughened glass edge after the chemical mordant corrosion is cut, and said chemical mordant is a hydrofluoric acid solution.
Preferably, before corrosion, earlier with the zone except that the edge part on protective membrane or the protection glue cover glass tow sides.
Preferably, glass edge part, is soaked mass percent concentration in being the hydrofluoric acid solution of 2%-30%.
Preferably, the mass percent concentration of said hydrofluoric acid solution is 5%-25%.
Preferably, the mass percent concentration of said hydrofluoric acid solution is 10%-20%.
Preferably, the mass percent concentration of said hydrofluoric acid solution is 12%-18%.。
Preferably, soak time is 5 minutes～100 minutes.
Preferably, soak time is 20 minutes～80 minutes.
Preferably, soak time is 40 minutes～70 minutes.
Preferably, the temperature of reaction of chemical corrosion is controlled at 15 ℃-45 ℃.
Compared with prior art, the cut edge that the present invention handles tempering (reinforcement) glass after the cutting with the mode of chemical corrosion can narrow down to glass edge defect point (promptly collapse point, collapse the limit) below the 0.01mm by 0.05mm; Make the edge sawtooth become level and smooth; The edge face shaping becomes the lenticular of even rule by irregular spination, has so changed the microtexture at toughened glass edge, eliminates the stress thin spot; Reach the consistence of ultimate compression strength, make strength of glass reach more than the 350MPa.The present invention adopts chemical corrosion glass cutting edge to improve the method for ultimate compression strength; Can realize large stretch of processing procedure; Efficient is high, operator's quantity significantly reduces, process rate is high, thereby on cost of manufacture, has huge advantage, has realized large stretch of processing procedure of tempering (reinforcement) glass.
Description of drawings
Fig. 1 is the undressed toughened glass figure in cutting back;
Fig. 2 is toughened glass figure after the inventive method is handled;
Fig. 3 is the enlarged view of Fig. 2.
Embodiment
In order to make those skilled in the art understand technical scheme of the present invention better, the present invention is done further detailed description below in conjunction with accompanying drawing and specific embodiment.
Embodiment one
Present embodiment comprises the steps:
Before corrosion,, be immersion 90 minutes in 2% the hydrofluoric acid solution at mass percent concentration then, then with glass taking-up, wiped clean with the glass edge part earlier with the zone except that the edge part on protective membrane or the protection glue cover glass tow sides.
Wherein, in the present embodiment, the temperature of reaction of chemical corrosion is controlled at 15 ℃.
Referring to Fig. 1, before the processing, the defect point of glass edge is comparatively obvious, is about 0.05mm, and referring to Fig. 2, Fig. 3, the glass edge after aforesaid method is handled becomes smoothly, and defect point narrows down to 0.01mm, records glass intensity and reaches more than the 350MPa.
Embodiment two
Present embodiment comprises the steps:
Before corrosion,, be immersion 95 minutes in 8% the hydrofluoric acid solution at mass percent concentration then, then with glass taking-up, wiped clean with the glass edge part earlier with the zone except that the edge part on protective membrane or the protection glue cover glass tow sides.
Wherein, in the present embodiment, the temperature of reaction of chemical corrosion is controlled at 18 ℃.
Embodiment three
Present embodiment comprises the steps:
Before corrosion,, be immersion 87 minutes in 11% the hydrofluoric acid solution at mass percent concentration then, then with glass taking-up, wiped clean with the glass edge part earlier with the zone except that the edge part on protective membrane or the protection glue cover glass tow sides.
Wherein, in the present embodiment, the temperature of reaction of chemical corrosion is controlled at 24 ℃.
Embodiment four
Present embodiment comprises the steps:
Before corrosion,, be immersion 100 minutes in 20% the hydrofluoric acid solution at mass percent concentration then, then with glass taking-up, wiped clean with the glass edge part earlier with the zone except that the edge part on protective membrane or the protection glue cover glass tow sides.
Wherein, in the present embodiment, the temperature of reaction of chemical corrosion is controlled at 27 ℃.
Embodiment five
Present embodiment comprises the steps:
Before corrosion,, be immersion 5 minutes in 30% the hydrofluoric acid solution at mass percent concentration then, then with glass taking-up, wiped clean with the glass edge part earlier with the zone except that the edge part on protective membrane or the protection glue cover glass tow sides.
Wherein, in the present embodiment, the temperature of reaction of chemical corrosion is controlled at 32 ℃.
Embodiment six
Present embodiment comprises the steps:
Before corrosion,, be immersion 45 minutes in 18% the hydrofluoric acid solution at mass percent concentration then, then with glass taking-up, wiped clean with the glass edge part earlier with the zone except that the edge part on protective membrane or the protection glue cover glass tow sides.
Wherein, in the present embodiment, the temperature of reaction of chemical corrosion is controlled at 38 ℃.
Embodiment seven
Present embodiment comprises the steps:
Before corrosion,, be immersion 68 minutes in 24% the hydrofluoric acid solution at mass percent concentration then, then with glass taking-up, wiped clean with the glass edge part earlier with the zone except that the edge part on protective membrane or the protection glue cover glass tow sides.
Wherein, in the present embodiment, the temperature of reaction of chemical corrosion is controlled at 40 ℃.
Embodiment eight
Present embodiment comprises the steps:
Before corrosion,, be immersion 79 minutes in 16% the hydrofluoric acid solution at mass percent concentration then, then with glass taking-up, wiped clean with the glass edge part earlier with the zone except that the edge part on protective membrane or the protection glue cover glass tow sides.
Wherein, in the present embodiment, the temperature of reaction of chemical corrosion is controlled at 42 ℃.
Embodiment nine
Present embodiment comprises the steps:
Before corrosion, earlier with the zone except that the edge part on protective membrane or the protection glue cover glass tow sides, then with the glass edge part being immersion 40 minutes in 20% the hydrofluoric acid solution at mass percent concentration, then with glass taking-up, wiped clean.
Wherein, in the present embodiment, the temperature of reaction of chemical corrosion is controlled at 45 ℃.
Embodiment ten
Present embodiment comprises the steps:
Before corrosion, earlier with the zone except that the edge part on protective membrane or the protection glue cover glass tow sides, then with the glass edge part being immersion 82 minutes in 9% the hydrofluoric acid solution at mass percent concentration, then with glass taking-up, wiped clean.
Wherein, in the present embodiment, the temperature of reaction of chemical corrosion is controlled at 29 ℃.
Embodiment 11
Present embodiment comprises the steps:
Before corrosion, earlier with the zone except that the edge part on protective membrane or the protection glue cover glass tow sides, then with the glass edge part being immersion 78 minutes in 16% the hydrofluoric acid solution at mass percent concentration, then with glass taking-up, wiped clean.
Wherein, in the present embodiment, the temperature of reaction of chemical corrosion is controlled at 40 ℃.
Embodiment 12
Present embodiment comprises the steps:
Before corrosion, earlier with the zone except that the edge part on protective membrane or the protection glue cover glass tow sides, then with the glass edge part being immersion 10 minutes in 28% the hydrofluoric acid solution at mass percent concentration, then with glass taking-up, wiped clean.
Wherein, in the present embodiment, the temperature of reaction of chemical corrosion is controlled at 22 ℃.
More than among each embodiment used protection glue and protective membrane be product commonly used of the prior art, repeat no more here.
More than the present invention has been carried out detailed introduction, use concrete example in the literary composition principle of the present invention and embodiment set forth, the explanation of above embodiment just is used for helping to understand method of the present invention and core concept thereof.Should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the principle of the invention, can also carry out some improvement and modification to the present invention, these improvement and modification also fall in the protection domain of claim of the present invention.
Claims (10)
1. a method that improves toughened glass cutting back ultimate compression strength is characterized in that, adopts the toughened glass edge after the chemical mordant corrosion is cut, and said chemical mordant is a hydrofluoric acid solution.
2. the method for raising toughened glass cutting as claimed in claim 1 back ultimate compression strength is characterized in that, before corrosion, earlier with the zone except that the edge part on protective membrane or the protection glue cover glass tow sides.
3. according to claim 1 or claim 2 the method for raising toughened glass cutting back ultimate compression strength is characterized in that, the glass edge part is soaked in mass percent concentration is the hydrofluoric acid solution of 2%-30%.
4. the method for raising toughened glass cutting as claimed in claim 3 back ultimate compression strength is characterized in that the mass percent concentration of said hydrofluoric acid solution is 5%-25%.
5. the method for raising toughened glass cutting as claimed in claim 3 back ultimate compression strength is characterized in that the mass percent concentration of said hydrofluoric acid solution is 10%-20%.
6. the method for raising toughened glass cutting as claimed in claim 3 back ultimate compression strength is characterized in that the mass percent concentration of said hydrofluoric acid solution is 12%-18%.。
7. the method for raising toughened glass cutting as claimed in claim 3 back ultimate compression strength is characterized in that soak time is 5 minutes～100 minutes.
8. the method for raising toughened glass cutting as claimed in claim 3 back ultimate compression strength is characterized in that soak time is 20 minutes～80 minutes.
9. the method for raising toughened glass cutting as claimed in claim 3 back ultimate compression strength is characterized in that soak time is 40 minutes～70 minutes.
10. the method for raising toughened glass cutting as claimed in claim 1 back ultimate compression strength is characterized in that the temperature of reaction of chemical corrosion is controlled at 15 ℃-45 ℃.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011102578205A CN102424530A (en) | 2011-09-02 | 2011-09-02 | Method for increasing compressive strength of cut toughened glass |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011102578205A CN102424530A (en) | 2011-09-02 | 2011-09-02 | Method for increasing compressive strength of cut toughened glass |
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| CN102424530A true CN102424530A (en) | 2012-04-25 |
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| CN2011102578205A Pending CN102424530A (en) | 2011-09-02 | 2011-09-02 | Method for increasing compressive strength of cut toughened glass |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102923939A (en) * | 2012-09-17 | 2013-02-13 | 江西沃格光电科技有限公司 | Method for cutting tempered glass |
| CN103159409A (en) * | 2013-03-27 | 2013-06-19 | 城步新鼎盛电子科技有限公司 | Method for generating protective layer for etching forming of toughened glass cover plate |
| CN103420615A (en) * | 2012-05-21 | 2013-12-04 | 铼钻科技股份有限公司 | Flattened glass substrate and method for manufacturing same |
| CN103482858A (en) * | 2013-09-05 | 2014-01-01 | 江西沃格光电科技有限公司 | Secondary strengthening method of toughened glass |
| CN103739204A (en) * | 2012-09-13 | 2014-04-23 | 江西沃格光电股份有限公司 | Edge corrosion jig for tempered glass and edge corrosion method for the tempered glass |
| CN107555804A (en) * | 2017-09-05 | 2018-01-09 | 深圳市骏达光电股份有限公司 | Touch the preparation method of panel glass and touch panel glass |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1369449A (en) * | 2002-03-26 | 2002-09-18 | 中国建筑材料科学研究院 | Process for over-all strengthening of glass |
| CN1990402A (en) * | 2005-12-28 | 2007-07-04 | 庄大建 | Hurricane-proof glass manufacturing technique |
| KR100754137B1 (en) * | 2006-03-29 | 2007-08-31 | 삼성에스디아이 주식회사 | Method for manufacturing organic light emitting display |
-
2011
- 2011-09-02 CN CN2011102578205A patent/CN102424530A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1369449A (en) * | 2002-03-26 | 2002-09-18 | 中国建筑材料科学研究院 | Process for over-all strengthening of glass |
| CN1990402A (en) * | 2005-12-28 | 2007-07-04 | 庄大建 | Hurricane-proof glass manufacturing technique |
| KR100754137B1 (en) * | 2006-03-29 | 2007-08-31 | 삼성에스디아이 주식회사 | Method for manufacturing organic light emitting display |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103420615A (en) * | 2012-05-21 | 2013-12-04 | 铼钻科技股份有限公司 | Flattened glass substrate and method for manufacturing same |
| CN103739204A (en) * | 2012-09-13 | 2014-04-23 | 江西沃格光电股份有限公司 | Edge corrosion jig for tempered glass and edge corrosion method for the tempered glass |
| CN103739204B (en) * | 2012-09-13 | 2016-05-18 | 江西沃格光电股份有限公司 | The edge corrosion tool of tempered glass and the edge corrosion method of tempered glass |
| CN102923939A (en) * | 2012-09-17 | 2013-02-13 | 江西沃格光电科技有限公司 | Method for cutting tempered glass |
| CN103159409A (en) * | 2013-03-27 | 2013-06-19 | 城步新鼎盛电子科技有限公司 | Method for generating protective layer for etching forming of toughened glass cover plate |
| CN103482858A (en) * | 2013-09-05 | 2014-01-01 | 江西沃格光电科技有限公司 | Secondary strengthening method of toughened glass |
| CN107555804A (en) * | 2017-09-05 | 2018-01-09 | 深圳市骏达光电股份有限公司 | Touch the preparation method of panel glass and touch panel glass |
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| C53 | Correction of patent of invention or patent application | ||
| CB02 | Change of applicant information |
Address after: 516600 Guangdong Industrial Zone, Shanwei City Road, Lee Lee Industrial City, a district of the building fifteenth Applicant after: Truly Opto-Electronics Ltd. Address before: 516600, Guangdong City, Shanwei Province Industrial Road, Xinli electronic industrial city Applicant before: Truly Semiconductors (Shanwei) Co., Ltd. |
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| COR | Change of bibliographic data |
Free format text: CORRECT: APPLICANT; FROM: TRULY OPTO-ELECTRONICS LIMITED TO: TRULY OPTO-ELECTRONICS LTD. |
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| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20120425 |