CN104176929B - High-aluminum high-sodium cover plate glass - Google Patents

High-aluminum high-sodium cover plate glass Download PDF

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Publication number
CN104176929B
CN104176929B CN201410401193.1A CN201410401193A CN104176929B CN 104176929 B CN104176929 B CN 104176929B CN 201410401193 A CN201410401193 A CN 201410401193A CN 104176929 B CN104176929 B CN 104176929B
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China
Prior art keywords
glass
plate glass
raw material
cover plate
cullet
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CN201410401193.1A
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Chinese (zh)
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CN104176929A (en
Inventor
宫汝华
任书明
刘再进
陈芳芳
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Sichuan Hongke Innovation Technology Co ltd
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Tunghsu Group Co Ltd
Sichuan Xuhong Optoelectronic Technology Co Ltd
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Abstract

The invention discloses a processing method of cover plate glass. The cover plate glass comprises the following components in percentage by mass: 55-65% of SiO2, 11-14% of Al2O3, 5.5-8% of MgO, 0-2% of CaO, 0-2% of BaO, 0-2% of SrO, 12.5-14.5% of Na2O, 2.5-4.0% of K2O and 0.8-1.8% of ZrO2. The BaO is added into the glass, and the ZrO2 content is also enhanced, thereby obviously enhancing the refractivity, light transmittance, mechanical strength and chemical corrosion resistance of the glass; glass cullet with consistent components with the finished product is also added into the raw materials, thereby lowering the melting temperature of the raw materials and enhancing the homogenizing performance of the glass; and by using the waste cover plate glass, the method can implement solid waste resource reutilization, and reduces the environmental pollution.

Description

A kind of high alumina sodium cover-plate glass high
Technical field
The present invention relates to glass processing field, specifically a kind of processing method of cover-plate glass.
Background technology
Cover-plate glass is the main raw material(s) for manufacturing touch-screen, the application field of screen products is touched, from game machine to notes Sheet, palm PC, mobile phone, GPS（GPS）、POS（Point of sales terminal）, the various FPD such as DPF Industry.All kinds of touch-control class consumer electronics such as current all smart mobile phones, panel computer use cover-plate glass.
Cover-plate glass is called protective glass, is generally termed cover glass, cover-plate glass as touch-control device a weight Part is wanted, Main Function is protection LCD device, and touch-control device decorative appearance, light transmission is good.General cover plate glass now Glass major part uses common soda-lime-silica glass, mainly cheaply, but poor quality, when using one section as touch screen Between after can be scraped off, transparency is also very low, and the eye injury to user is very big.And current cover-plate glass is usually contained Too high infusibility component, causes melting temperature too high；Or containing acidic oxide, it has corrosivity, can accelerate resistance to kiln The erosion of fiery material.
The content of the invention
It is an object of the invention to solve defect and inefficiency present in above-mentioned existing mounting technique, there is provided a kind of The processing method of cover-plate glass, solves that existing cover-plate glass quality is too poor, and transparency is not high, is easily scraped off, solution temperature The too strong defect of too high, corrosivity.
The purpose of the present invention is achieved through the following technical solutions：A kind of processing method of cover-plate glass, specifically there is following step Suddenly：
（1）Prepare raw material, by mass percentage, including 55~65% SiO2, 11~14% Al2O3, 5.5~8% MgO, 0~2% CaO, 0~2% BaO, 0~2% SrO, 12.5%~14.5% Na2O, 2.5%~4.0% K2O, 0.8%~ 1.8% ZrO2；
（2）By step（1）In raw material mixing after, mixed raw material is sent in kiln heating and melting into glass Water, heating-up temperature is 1600 DEG C -2000 DEG C；
（3）Step（2）In bath of glass be molded, annealed after, cutting processing is finished product.
Compared with existing glass in the present invention, BaO is with the addition of, and the amount of ZrO2 is also improved, and can significantly improve The refractive index of glass, light transmittance, mechanical strength and resistance to chemical corrosion, Al is with the addition of in glass of the invention2O3, improve The stability and mechanical strength of glass, increased glass toughness, but also can reduce the corrosivity to refractory material, be to subtract The damage to kiln and former is lacked.
Step（3）Bath of glass be to be molded by molten tin bath float glass process, anneal process of passing through tunnel formula annealing kiln stress relieving by annealing, this The corrosivity of invention has substantial degradation, so damaging very low to molten tin bath and annealing kiln, reduces maintenance cost
Further, step（2）Described in raw material mixing when, also added cullet, the composition and step of cullet （3）Middle finished product is consistent, and cullet and the mass ratio of raw material are 1:9~7:3, the effect of cullet is reduction of the melting of raw material Temperature, the homogenizing performance for improving glass, because can be using discarded cover-plate glass, you can to realize solid waste resource again Utilize, reduce the pollution to environment.
The beneficial effects of the invention are as follows：
1st, BaO is with the addition of in glass of the invention, and the amount of ZrO2 is also improved, and can significantly improve the folding of glass Rate, light transmittance, mechanical strength and resistance to chemical corrosion are penetrated, Al is also added2O3, the stability and machinery that improve glass is strong Degree, increased glass toughness, but also can reduce the corrosivity to refractory material, that is, be the reduction of to kiln and former Damage；
2nd, the cullet consistent with finished product composition are also added in raw material of the invention, reduce raw material melting temperature, The homogenizing performance of glass is improved, because can be using discarded cover-plate glass, you can to realize that solid waste resource is recycled, Reduce the pollution to environment.
Specific embodiment
Embodiment：
（1）Prepare raw material, by mass percentage, including 55~65% SiO2, 11~14% Al2O3, 5.5~8% MgO, 0~2% CaO, 0~2% BaO, 0~2% SrO, 12.5%~14.5% Na2O, 2.5%~4.0% K2O, 0.8%~ 1.8% ZrO2；
（2）By step（1）In raw material mixing after, mixed raw material is sent in kiln heating and melting into glass Water, heating-up temperature is 1600 DEG C -2000 DEG C；
（3）Step（2）In bath of glass be molded, annealed after, cutting processing is finished product.
Compared with existing glass in the present invention, BaO is with the addition of, and the amount of ZrO2 is also improved, and can significantly improve The refractive index of glass, light transmittance, mechanical strength and resistance to chemical corrosion, Al is with the addition of in glass of the invention2O3, improve The stability and mechanical strength of glass, increased glass toughness, but also can reduce the corrosivity to refractory material, be to subtract The damage to kiln and former is lacked.
Step（3）Bath of glass be to be molded by molten tin bath float glass process, anneal process of passing through tunnel formula annealing kiln stress relieving by annealing, this The corrosivity of invention has substantial degradation, so damaging very low to molten tin bath and annealing kiln, reduces maintenance cost
Further, the step of the present embodiment（2）Described in raw material mixing when, also added cullet, cullet Composition and step（3）Middle finished product is consistent, and cullet and the mass ratio of raw material are 1:9~7:3, the effect of cullet is reduction of The melting temperature of raw material, the homogenizing performance for improving glass, because can be using discarded cover-plate glass, you can to realize that solid gives up Gurry resource reutilization, reduces the pollution to environment.

Claims (1)

1. a kind of processing method of cover-plate glass, it is characterised in that comprise the following steps：
(1) raw material is prepared, by mass percentage, by 55~65% SiO2, 11~14% Al2O3, 8% MgO, 12.5% ~14.5% Na2O, 2.5%~4.0% K2O, 0.8% ZrO2Composition；
(2) after the raw material in step (1) is mixed, mixed raw material is sent in kiln heating and melting into bath of glass, plus Hot temperature is 1600 DEG C -2000 DEG C；
(3) after the bath of glass in step (2) is molded, anneals, cutting processing is finished product；Raw material described in step (2) exists During mixing, also added cullet, the composition of cullet is consistent with finished product in step (3), and cullet and raw material mass ratio It is 7:3.
CN201410401193.1A 2014-08-15 2014-08-15 High-aluminum high-sodium cover plate glass Active CN104176929B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201410401193.1A CN104176929B (en) 2014-08-15 2014-08-15 High-aluminum high-sodium cover plate glass

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201410401193.1A CN104176929B (en) 2014-08-15 2014-08-15 High-aluminum high-sodium cover plate glass

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CN104176929A CN104176929A (en) 2014-12-03
CN104176929B true CN104176929B (en) 2017-05-24

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Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105060703B (en) * 2015-09-06 2017-10-31 四川旭虹光电科技有限公司 Electronic display unit high intensity protective glass plate
CN105800947B (en) * 2016-03-04 2018-11-23 四川旭虹光电科技有限公司 A kind of glass method for processing blind hole

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101575167B (en) * 2009-06-05 2011-08-10 北京工业大学 Zirconia aluminosilicate glass
JP5664872B2 (en) * 2009-06-29 2015-02-04 旭硝子株式会社 Molten glass manufacturing method, glass melting furnace, glass product manufacturing apparatus, and glass product manufacturing method
JP5839338B2 (en) * 2011-01-18 2016-01-06 日本電気硝子株式会社 Method for producing tempered glass sheet

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