CN103613270A - Method for producing large-scale touch screen glass - Google Patents
Method for producing large-scale touch screen glass Download PDFInfo
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- CN103613270A CN103613270A CN201310597465.5A CN201310597465A CN103613270A CN 103613270 A CN103613270 A CN 103613270A CN 201310597465 A CN201310597465 A CN 201310597465A CN 103613270 A CN103613270 A CN 103613270A
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P40/00—Technologies relating to the processing of minerals
- Y02P40/50—Glass production, e.g. reusing waste heat during processing or shaping
- Y02P40/57—Improving the yield, e-g- reduction of reject rates
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- Re-Forming, After-Treatment, Cutting And Transporting Of Glass Products (AREA)
Abstract
The invention discloses a method for producing large-scale touch screen glass. The method specifically comprises the steps of performing cutting, edging, gap opening, perforating, cleaning, heating toughening and air grid on a glass sheet to obtain a toughened glass product. The method is characterized in that the heating toughening specifically comprises the steps of heating the glass sheet to 640-660 DEG C by adopting a low-temperature physical toughening method during heating toughening, taking the glass sheet out and conveying the glass sheet to a toughening shock cooling area, wherein the shock cooling time is 5-15 seconds; and taking the glass sheet out, conveying the glass sheet to a toughening cooling area, cooling the glass sheet to the normal temperature to obtain a toughened glass product. The method disclosed by the invention has the advantages that a low-temperature physical toughening method is adopted, when the glass sheet is heated to a temperature lower than a softening point of 40-60 DEG C, the glass sheet is not softened and the strength of the lower surface of the glass sheet is still high, and when the glass sheet is moved out of a toughening furnace, the lower surface of the glass sheet can not be napped by the toughening furnace easily, so that the surface of an obtained toughened glass product is surely smoother.
Description
Technical field
the present invention relates to a kind of glass production method, especially a kind of large-scale touch-screen glass production method.
Background technology
toughened glass belongs to a kind of of shatter proof glass, it is a kind of prestressed glass, for improving the intensity of glass, conventionally use the method for chemistry or physics, at glass surface, form stress, when glass bears external force, first offset skin stress, thereby improved supporting capacity, reinforcing glass self anti-wind pressure, cold and heat, impact etc.
what in prior art, produce that the method for toughened glass mainly adopts is physical toughened method, Chinese invention patent application prospectus CN 102730952 A disclose a kind of glass tempering furnace and glass tempering method, this glass tempering method adopts glass heats to 670 ℃～695 ℃ required temperature of tempering, deliver to tempering quench zone, yet because the softening point temperature of glass is 700 ℃, in glass heats 670 ℃～695 ℃ temperature courses required to tempering, because Heating temperature approaches the softening temperature of glass, cause the lower surface of glass easily because thermoplastic is by annealing furnace plucking, thereby cause glass surface unfairness, the defective products of the toughened glass that obtains is increased, productivity reduces.
Summary of the invention
the present invention seeks to: provide a kind of skin stress strong, planeness is high, and be difficult for the large-scale touch-screen glass production method that Yin Gaowen produces plucking phenomenon.
technical scheme of the present invention is: a kind of large-scale touch-screen glass production method, and its concrete steps are as follows:
original sheet glass is carried out obtaining toughened glass product after cutting, edging, quit a post and thus leave it vacant, punching, cleaning, heating tempering, air grid;
it is characterized in that, the concrete steps of described heating tempering are:
in heating toughening process, adopt low-temperature physics tempering method: original sheet glass is heated to the temperature lower than 40 ℃～60 ℃ of softening temperatures, the temperature of this original sheet glass softening temperature is 700 ℃, be about to after original sheet glass is heated to 640 ℃～660 ℃ take out and be sent to tempering quench zone, chilling period is 5 s～15s; Again described original sheet glass is taken out and be sent to tempering cooling zone, be cooled to normal temperature, obtain toughened glass product; The inventive method adopts low-temperature physics tempering method, original sheet glass is heated to the temperature lower than 40 ℃～60 ℃ of softening temperatures, 640 ℃～660 ℃, because the temperature of this original sheet glass softening temperature is 700 ℃, now original sheet glass is not yet softening, its lower surface intensity is still very high, when original sheet glass shifts out annealing furnace, its lower surface is difficult for by annealing furnace plucking, thereby guarantee that the toughened glass product surface obtaining is Paint Gloss, the toughened glass product herein obtaining can be semi-tempered glass product simultaneously, can be also full tempered glass product.
preferably, the method that described original sheet glass is heated to 640 ℃～660 ℃ is gradient heating: default initial temperature is 250 ℃, and every heating 10s～30s, heats up 50 ℃, original sheet glass is heated to the temperature lower than 40 ℃～60 ℃ of softening temperatures the most at last, 640 ℃～660 ℃.
preferably, take out and be sent to tempering quench zone after original sheet glass is heated to 650 ℃, chilling period is 10s.
preferably, the chilling blast of tempering quench zone is 0.05MPa～0.1MPa, and the cooling wind pressure of tempering cooling zone is 0.04MPa～0.042MPa.
the concrete steps that the present invention carries out cutting, edging, quit a post and thus leave it vacant, punching, cleaning, air grid to original sheet glass all adopt the common process method of glass, are not described in detail herein.
advantage of the present invention is:
1. adopt low-temperature physics tempering method, when original sheet glass is heated to the temperature lower than 40 ℃～60 ℃ of softening temperatures, original sheet glass is not yet softening, its lower surface intensity is still very high, when original sheet glass is shifted out to annealing furnace, its lower surface is difficult for by annealing furnace plucking, thereby guarantees that the toughened glass product surface obtaining is Paint Gloss.
. the half tempered, the full tempered glass product that adopt the inventive method to prepare, the skin stress of its semi-tempered glass is 35 ± 5MPa, the skin stress of full tempered glass is 125 ± 10MPa, and for the integral smoothness of large-scale touch-screen glass all≤1 ‰, without wave sigmoid, flexural strength>=100MPa.
. adopt low-temperature physics tempering method, heatproof requirement and the power consumption of equipment are all had to larger minimizing, its energy-saving effect is 50% left and right of common process.
Embodiment
embodiment 1: first adopt common process method original sheet glass to be carried out to the steps such as cutting, edging, quit a post and thus leave it vacant, punching, cleaning, then the tempering specification for the treatment of former of toughened glass adopting is 80 cun of glass of 1900*1600*3.2 large-size screen monitors, the temperature of this original sheet glass softening temperature is 700 ℃, then adopt gradient heating that original sheet glass is heated to 653 ℃, first default initial temperature is 250 ℃, every heating 20s, heats up 50 ℃, and original sheet glass is heated to 653 ℃ the most at last; At these 653 ℃ of temperature, heat 78s, then original sheet glass is sent to tempering quench zone, chilling blast is 0.075MPa, and chilling period is 10s, then original sheet glass is sent to tempering cooling zone is cooled to normal temperature, and cooling wind pressure is 0.04MPa, and be 70s cooling time; The present invention simultaneously adopts Taiwan Tong Chang 1630 type horizontal annealing furnaces, its tempering power is only 52% of conventional toughening method tempering power, the semi-tempered glass product that last output tables ply stress is 35MPa, this semi-tempered glass product can tolerate the high fall sphere test of 1040g steel ball 1m simultaneously, and integral smoothness≤1 ‰ for 80 cun of large-scale touch-screen glass, without wave sigmoid, flexural strength>=100MPa.
embodiment 2: first adopt common process method original sheet glass to be carried out to the steps such as cutting, edging, quit a post and thus leave it vacant, punching, cleaning, then the tempering specification for the treatment of former of toughened glass adopting is 70 cun of glass of 1600*1000*4 large-size screen monitors, the temperature of this original sheet glass softening temperature is 700 ℃, then adopt gradient heating that original sheet glass is heated to 645 ℃, first default initial temperature is 250 ℃, every heating 20s, heats up 50 ℃, and original sheet glass is heated to 645 ℃ the most at last; At these 645 ℃ of temperature, heat 82s, then original sheet glass is sent to tempering quench zone, chilling blast is 0.083MPa, and chilling period is 10s, then original sheet glass is sent to tempering cooling zone is cooled to normal temperature, and cooling wind pressure is 0.042MPa, and be 90s cooling time; The present invention simultaneously adopts Taiwan Tong Chang 1630 type horizontal annealing furnaces, its tempering power is only 47% of conventional toughening method tempering power, last output tables ply stress is that 126MPa, fragmentation test are the full tempered glass product of 62, while is for integral smoothness≤1 ‰ of 70 cun of large-scale touch-screen glass, without wave sigmoid, flexural strength>=100MPa.
the half tempered of embodiment 1,2 gained, all steel product are carried out to the test of planeness, its planeness is≤1 ‰ arc curved, the refractive power point that its surface can not have without display screen simultaneously, quality meets the requirement of large-scale touch-screen glass completely.
above-described embodiment is only explanation technical conceive of the present invention and feature, and its object is to allow person skilled in the art can understand content of the present invention and implement according to this, can not limit the scope of the invention with this.All modifications that the spirit of main technical schemes is done according to the present invention, within all should being encompassed in protection scope of the present invention.
Claims (4)
1. a large-scale touch-screen glass production method, its concrete steps are as follows:
Original sheet glass is carried out obtaining toughened glass product after cutting, edging, quit a post and thus leave it vacant, punching, cleaning, heating tempering, air grid;
It is characterized in that, the concrete steps of described heating tempering are:
In heating toughening process, adopt low-temperature physics tempering method: after original sheet glass is heated to 640 ℃～660 ℃, take out and be sent to tempering quench zone, chilling period is 5 s～15s; Again described original sheet glass is taken out and be sent to tempering cooling zone, be cooled to normal temperature, obtain toughened glass product.
2. a kind of large-scale touch-screen glass production method according to claim 1, is characterized in that, the method that described original sheet glass is heated to 640 ℃～660 ℃ is gradient heating.
3. a kind of large-scale touch-screen glass production method according to claim 1, is characterized in that, takes out and be sent to tempering quench zone after original sheet glass is heated to 650 ℃, and chilling period is 10s.
4. a kind of large-scale touch-screen glass production method according to claim 1, is characterized in that, the chilling blast of tempering quench zone is 0.05MPa～0.1MPa, and the cooling wind pressure of tempering cooling zone is 0.04MPa～0.042MPa.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310597465.5A CN103613270A (en) | 2013-11-22 | 2013-11-22 | Method for producing large-scale touch screen glass |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310597465.5A CN103613270A (en) | 2013-11-22 | 2013-11-22 | Method for producing large-scale touch screen glass |
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| CN103613270A true CN103613270A (en) | 2014-03-05 |
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| CN201310597465.5A Pending CN103613270A (en) | 2013-11-22 | 2013-11-22 | Method for producing large-scale touch screen glass |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104210185A (en) * | 2014-09-18 | 2014-12-17 | 安比斯特殊玻璃（苏州）有限公司 | Bullet-proof glass and preparation method thereof |
| CN111547998A (en) * | 2020-05-15 | 2020-08-18 | 秦皇岛弘华特种玻璃有限公司 | Process for tempering borosilicate glass |
| CN114940579A (en) * | 2021-06-24 | 2022-08-26 | 河北明尚德玻璃科技股份有限公司 | Production process of high borosilicate glass 2.0 and application of high borosilicate glass 2.0 |
| CN114988676A (en) * | 2022-05-11 | 2022-09-02 | 贵州齐天安全玻璃有限公司 | Toughened glass processing method |
Citations (7)
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|---|---|---|---|---|
| CN1183090A (en) * | 1996-03-21 | 1998-05-27 | 彼得·利瑟 | Process and plant for hardening glass plates |
| CN1378983A (en) * | 2001-03-30 | 2002-11-13 | 旭硝子株式会社 | Glass plate and its quenching method |
| CN1843988A (en) * | 2006-04-07 | 2006-10-11 | 无锡市新惠玻璃制品有限责任公司 | Process for preparing physical toughened thin glass |
| CN100999379A (en) * | 2006-01-11 | 2007-07-18 | 中国科学院西安光学精密机械研究所 | Production process of semi-tempered glass substrate |
| JP2009215100A (en) * | 2008-03-10 | 2009-09-24 | Central Glass Co Ltd | Thermal tempering apparatus for glass plate |
| CN101628783A (en) * | 2009-08-08 | 2010-01-20 | 陈永乐 | Continuous tempering furnace and processing technique of bent tempered glass |
| CN102730952A (en) * | 2012-06-29 | 2012-10-17 | 都匀开发区福田化工有限责任公司 | Glass tempering furnace and glass tempering method |
-
2013
- 2013-11-22 CN CN201310597465.5A patent/CN103613270A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1183090A (en) * | 1996-03-21 | 1998-05-27 | 彼得·利瑟 | Process and plant for hardening glass plates |
| CN1378983A (en) * | 2001-03-30 | 2002-11-13 | 旭硝子株式会社 | Glass plate and its quenching method |
| CN100999379A (en) * | 2006-01-11 | 2007-07-18 | 中国科学院西安光学精密机械研究所 | Production process of semi-tempered glass substrate |
| CN1843988A (en) * | 2006-04-07 | 2006-10-11 | 无锡市新惠玻璃制品有限责任公司 | Process for preparing physical toughened thin glass |
| JP2009215100A (en) * | 2008-03-10 | 2009-09-24 | Central Glass Co Ltd | Thermal tempering apparatus for glass plate |
| CN101628783A (en) * | 2009-08-08 | 2010-01-20 | 陈永乐 | Continuous tempering furnace and processing technique of bent tempered glass |
| CN102730952A (en) * | 2012-06-29 | 2012-10-17 | 都匀开发区福田化工有限责任公司 | Glass tempering furnace and glass tempering method |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104210185A (en) * | 2014-09-18 | 2014-12-17 | 安比斯特殊玻璃（苏州）有限公司 | Bullet-proof glass and preparation method thereof |
| CN104210185B (en) * | 2014-09-18 | 2016-05-11 | 安比斯特殊玻璃（苏州）有限公司 | A kind of bulletproof glass and preparation method thereof |
| CN111547998A (en) * | 2020-05-15 | 2020-08-18 | 秦皇岛弘华特种玻璃有限公司 | Process for tempering borosilicate glass |
| CN114940579A (en) * | 2021-06-24 | 2022-08-26 | 河北明尚德玻璃科技股份有限公司 | Production process of high borosilicate glass 2.0 and application of high borosilicate glass 2.0 |
| CN114988676A (en) * | 2022-05-11 | 2022-09-02 | 贵州齐天安全玻璃有限公司 | Toughened glass processing method |
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Application publication date: 20140305 |