CN104176932B - A kind of high strength safe protective glass of low surface tension and preparation method - Google Patents
A kind of high strength safe protective glass of low surface tension and preparation method Download PDFInfo
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- 239000011521 glass Substances 0.000 title claims abstract description 102
- 230000001681 protective effect Effects 0.000 title claims abstract description 17
- 238000002360 preparation method Methods 0.000 title claims description 5
- 229910005793 GeO 2 Inorganic materials 0.000 claims abstract description 16
- 229910004298 SiO 2 Inorganic materials 0.000 claims abstract description 11
- 229910006404 SnO 2 Inorganic materials 0.000 claims abstract description 10
- 229910010413 TiO 2 Inorganic materials 0.000 claims abstract description 5
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 4
- 229910052797 bismuth Inorganic materials 0.000 claims abstract description 4
- 239000012535 impurity Substances 0.000 claims abstract description 4
- 229910052708 sodium Inorganic materials 0.000 claims abstract description 4
- VWDWKYIASSYTQR-UHFFFAOYSA-N sodium nitrate Chemical compound [Na+].[O-][N+]([O-])=O VWDWKYIASSYTQR-UHFFFAOYSA-N 0.000 claims description 22
- DPDMMXDBJGCCQC-UHFFFAOYSA-N [Na].[Cl] Chemical compound [Na].[Cl] DPDMMXDBJGCCQC-UHFFFAOYSA-N 0.000 claims description 11
- 239000004317 sodium nitrate Substances 0.000 claims description 11
- 229940001516 sodium nitrate Drugs 0.000 claims description 11
- 235000010344 sodium nitrate Nutrition 0.000 claims description 11
- 239000000292 calcium oxide Substances 0.000 claims description 9
- 239000004615 ingredient Substances 0.000 claims description 8
- 238000002844 melting Methods 0.000 claims description 8
- XOLBLPGZBRYERU-UHFFFAOYSA-N tin dioxide Chemical compound O=[Sn]=O XOLBLPGZBRYERU-UHFFFAOYSA-N 0.000 claims description 8
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 claims description 6
- 239000000843 powder Substances 0.000 claims description 6
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 claims description 4
- 229910000416 bismuth oxide Inorganic materials 0.000 claims description 3
- CETPSERCERDGAM-UHFFFAOYSA-N ceric oxide Chemical compound O=[Ce]=O CETPSERCERDGAM-UHFFFAOYSA-N 0.000 claims description 3
- 229910000422 cerium(IV) oxide Inorganic materials 0.000 claims description 3
- TYIXMATWDRGMPF-UHFFFAOYSA-N dibismuth;oxygen(2-) Chemical compound [O-2].[O-2].[O-2].[Bi+3].[Bi+3] TYIXMATWDRGMPF-UHFFFAOYSA-N 0.000 claims description 3
- YBMRDBCBODYGJE-UHFFFAOYSA-N germanium oxide Inorganic materials O=[Ge]=O YBMRDBCBODYGJE-UHFFFAOYSA-N 0.000 claims description 3
- 239000003317 industrial substance Substances 0.000 claims description 3
- ZLNQQNXFFQJAID-UHFFFAOYSA-L magnesium carbonate Chemical compound [Mg+2].[O-]C([O-])=O ZLNQQNXFFQJAID-UHFFFAOYSA-L 0.000 claims description 3
- 238000002156 mixing Methods 0.000 claims description 3
- JKQOBWVOAYFWKG-UHFFFAOYSA-N molybdenum trioxide Chemical compound O=[Mo](=O)=O JKQOBWVOAYFWKG-UHFFFAOYSA-N 0.000 claims description 3
- PVADDRMAFCOOPC-UHFFFAOYSA-N oxogermanium Chemical compound [Ge]=O PVADDRMAFCOOPC-UHFFFAOYSA-N 0.000 claims description 3
- BWHMMNNQKKPAPP-UHFFFAOYSA-L potassium carbonate Substances [K+].[K+].[O-]C([O-])=O BWHMMNNQKKPAPP-UHFFFAOYSA-L 0.000 claims description 3
- 235000015320 potassium carbonate Nutrition 0.000 claims description 3
- 239000004576 sand Substances 0.000 claims description 3
- 235000017550 sodium carbonate Nutrition 0.000 claims description 3
- 229910000029 sodium carbonate Inorganic materials 0.000 claims description 3
- 239000004575 stone Substances 0.000 claims description 3
- 238000005303 weighing Methods 0.000 claims description 3
- 238000000034 method Methods 0.000 abstract description 12
- 238000007493 shaping process Methods 0.000 abstract description 8
- 239000000126 substance Substances 0.000 description 15
- 239000011734 sodium Substances 0.000 description 11
- 239000005329 float glass Substances 0.000 description 9
- LIVNPJMFVYWSIS-UHFFFAOYSA-N silicon monoxide Inorganic materials [Si-]#[O+] LIVNPJMFVYWSIS-UHFFFAOYSA-N 0.000 description 9
- ODINCKMPIJJUCX-UHFFFAOYSA-N calcium oxide Inorganic materials [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 description 8
- 230000006835 compression Effects 0.000 description 8
- 238000007906 compression Methods 0.000 description 8
- 230000004927 fusion Effects 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 5
- 230000008018 melting Effects 0.000 description 5
- KKCBUQHMOMHUOY-UHFFFAOYSA-N Na2O Inorganic materials [O-2].[Na+].[Na+] KKCBUQHMOMHUOY-UHFFFAOYSA-N 0.000 description 4
- 238000006124 Pilkington process Methods 0.000 description 4
- 238000011161 development Methods 0.000 description 4
- 239000005357 flat glass Substances 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 230000010287 polarization Effects 0.000 description 4
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 3
- 238000000137 annealing Methods 0.000 description 3
- 238000005352 clarification Methods 0.000 description 3
- 239000005308 flint glass Substances 0.000 description 3
- 239000005355 lead glass Substances 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 238000005498 polishing Methods 0.000 description 3
- 229910018557 Si O Inorganic materials 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 2
- 150000001450 anions Chemical group 0.000 description 2
- 239000002131 composite material Substances 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000004031 devitrification Methods 0.000 description 2
- 238000005342 ion exchange Methods 0.000 description 2
- 150000002500 ions Chemical class 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 239000005361 soda-lime glass Substances 0.000 description 2
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical class [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 1
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 1
- 241001300078 Vitrea Species 0.000 description 1
- NCXOIRPOXSUZHL-UHFFFAOYSA-N [Si].[Ca].[Na] Chemical compound [Si].[Ca].[Na] NCXOIRPOXSUZHL-UHFFFAOYSA-N 0.000 description 1
- 229910000323 aluminium silicate Inorganic materials 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- BRPQOXSCLDDYGP-UHFFFAOYSA-N calcium oxide Chemical compound [O-2].[Ca+2] BRPQOXSCLDDYGP-UHFFFAOYSA-N 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- DEPUMLCRMAUJIS-UHFFFAOYSA-N dicalcium;disodium;dioxido(oxo)silane Chemical compound [Na+].[Na+].[Ca+2].[Ca+2].[O-][Si]([O-])=O.[O-][Si]([O-])=O.[O-][Si]([O-])=O DEPUMLCRMAUJIS-UHFFFAOYSA-N 0.000 description 1
- HNPSIPDUKPIQMN-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Al]O[Al]=O HNPSIPDUKPIQMN-UHFFFAOYSA-N 0.000 description 1
- 239000006066 glass batch Substances 0.000 description 1
- 239000000156 glass melt Substances 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 230000003137 locomotive effect Effects 0.000 description 1
- 235000010755 mineral Nutrition 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 230000005501 phase interface Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 239000005336 safety glass Substances 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 230000008961 swelling Effects 0.000 description 1
- 238000005496 tempering Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 239000010936 titanium Substances 0.000 description 1
- 229910052719 titanium Inorganic materials 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 230000003245 working effect Effects 0.000 description 1
Abstract
The present invention relates to a kind of high strength safe protective glass of low surface tension, its high temperature viscosity is low, be easy to fusing, surface tension is little to be convenient to shaping, is applicable to floating process and produces.The main high strength safe protective glass being used as the touch-screens such as mobile phone, TV, panel computer, industrial control equipment.It is characterized in that, component and the mass percent of glass are as follows: SiO
259 ~ 62%, Al
2o
312 ~ 14%, Na
2o 11 ~ 13%, CeO
20.25%, SnO
20.5%, MgO 5 ~ 6%, K
2o 4 ~ 5% , MoO
30.6% ~ 0.8%, Bi
2o
31.1% ~ 1.5%, GeO
21.2% ~ 1.3%, other impurity (Fe
2o
3+ TiO
2+ CaO) be 0.25 ~ 0.75%; Wherein MoO
3+ Bi
2o
3+ GeO
2resultant is: 3.0 ~ 3.5%.
Description
Technical field
The present invention relates to the extraordinary touch-screen glass of high alumina, particularly relate to a kind of high strength safe protective glass of low surface tension, its high temperature viscosity is low is easy to that fusing, surface tension are little to be convenient to shaping, is applicable to floating process and produces.The main high strength safe protective glass being used as the touch-screens such as mobile phone, TV, panel computer, industrial control equipment.Also can be used for the rapid Wind-guard safety glass such as luxury liner, high-speed railway locomotive, aircraft.
Technical background
Along with the fast development of national economy, the touch-screen class of electronic devices such as industrial control equipment, mobile phone, flat panel TV of China is widely used, effectively can prevent from showing the impact of product screen surface and scratch infringement, the high strength glass material extending product work-ing life becomes the first-selection of touch-screen cover plate.
High-strength touch screen float glass, also can be widely used in windshield and the high-end residential shatter proof glass of the various vehicles, in the use of bullet train and aircraft, especially have the advantage that other material hardly matches.The application of high strength glass, by greatly improving the security of the vehicles, comfortableness and aesthetic feeling, adapts to the trend of various glass thinning used for vehicle, can meet various vehicles configuration design requirement preferably.
As the touch-screen cover-plate glass of protection component; require that it has higher scratch resistance, shock resistance; in order to improve the intensity of touch-screen cover-plate glass, introduce the aluminum oxide up to more than 12% in glass ingredient, this makes founding of glass become difficulty with shaping.The high-strength touch screen special glass of more than 90% adopts press over system to produce (Corning Incorporated and NEG) in the market, although press over system is produced, planeness is good, poor being easy to of thickness controls, but width and thickness aspect are restricted, roomy not as float glass plate and thickness is thin.And floating process is shaping, because the surface tension of glass is large, draw the problem of thin post shrinkage, make that thickness is poor, warpage etc. does not reach standard-required.Japan AGC is only had to grasp the high-strength touch screen special glass of floating process production gordian technique production high-quality.
The research of China in touch-screen height lead glass is started late, and does not also produce successful precedent at present.From the future development of electronic console industry and sheet glass industry, high-strength touch screen special float glass is the emphasis of industry future development, is also the industrial development direction of clear stipulaties in national industry structural adjustment.
Summary of the invention
The present invention aims to provide a kind of high strength safe protective glass and preparation method; meeting on the basis that touch-screen intensity is large, hardness is high, chemical stability is good; also have that surface tension is little, feature at the bottom of high temperature viscosity, the fusing and the float glass process that are more conducive to glass are shaping.
A high strength safe protective glass for low surface tension, is characterized in that, the component of described glass and mass percent are: SiO
259 ~ 62%, Al
2o
312 ~ 14%, Na
2o11 ~ 13%, CeO
20.25%, SnO
20.5%, MgO5 ~ 6%, K
2o4 ~ 5%, MoO
30.6% ~ 0.8%, Bi
2o
31.1% ~ 1.5%, GeO
21.2% ~ 1.3%, other impurity (Fe
2o
3+ TiO
2+ CaO) be 0.25 ~ 0.75%; Wherein MoO
3+ Bi
2o
3+ GeO
2resultant is: 3.0 ~ 3.5%.
The preparation method of glass of the present invention is: introduce SiO with low iron-stone sand
2, aluminum oxide powder introduces Al
2o
3, soda ash, sodium-chlor, SODIUMNITRATE introduce Na
2o, MgO introduced by Stan-Mag Magnesium Carbonate, and salt of wormwood introduces K
2o, CeO
2, SnO
2, MoO
3, Bi
2o
3and GeO
2industrial chemicals cerium dioxide, tindioxide, molybdic oxide, bismuth oxide and germanium oxide powder is used Deng respectively; According to the mass percent accurate weighing given by component and Homogeneous phase mixing, be prepared into admixtion.Founded in glass-melting furnace by this admixtion, temperature reaches 1600 DEG C, and melting time is 2 hours.
The present invention adopts CeO
2, SnO
2, sodium-chlor and SODIUMNITRATE as finings, finings add-on is: CeO
2account for 0.25%, SnO of glass total amount
2account for 0.5% of glass total amount, sodium-chlor is 1% containing rate, and SODIUMNITRATE is 1.5% containing rate.Be defined as containing rate: sodium-chlor or SODIUMNITRATE introduce Na
2o amount accounts for total Na in glass
2the per-cent of O amount.
The high strength safe protective glass of a kind of low surface tension of the present invention, temperature corresponding to series of features viscosity points is respectively: 10
2the temperature of fusion of what dPas viscosity was corresponding is glass, is less than 1590 DEG C, far below the temperature of fusion (more than 1650 DEG C) of high lead glass in the market, is easy to melt and obtains the good glass metal of clear quality.10
4the mold temperature of what dPas viscosity was corresponding is glass is less than 1120 DEG C, lower than the mold temperature (more than 1180 DEG C) of high lead glass in the market, is more suitable for float shaping technique.10
11what dPas viscosity was corresponding is tin bath outlet (entrance of namely annealing) temperature, is about 605 DEG C, basically identical with common soda-lime-silica glass (about 600 DEG C); 10
14.5the annealing lower limit temperature of the corresponding glass of dPas viscosity is about 510 DEG C, basically identical with common soda-lime-silica glass (about 520 DEG C), is particularly suitable for the annealing process of float glass.
The surface tension of glass refers on the phase interface that glass contacts with another, under constant temperature, constant volume, increases a per surface time institute work.The clarification of glass is that small bubbles floating merges into air pocket, and reach glass metal surface, internal pressure overcomes surface tension and gets rid of outside glass melt, and therefore surface tension is little is convenient to the requirement target that glass reaches clarification homogenizing; Float flat glass production principle is the effect based on glass surface tension, and the polishing time of glass in molten tin bath and polishing effect are mainly determined by the surface tension of glass under mold temperature.Show that glass ingredient of the present invention is applicable to needs and the high speed drawing of shaping and self polishing of float glass process according to capillary test.The high strength safe protective glass of a kind of low surface tension of the present invention; the surface tension of sample is tested by drop-weight method, 900 DEG C be below 0.341N/M, 1200 DEG C be below 0.322N/M, 1300 DEG C be below 0.320N/M, 1400 DEG C for below 0.318N/M.With the surface tension of common sodium calcium silicon float glass: 900 DEG C be 0.338N/M, 1200 DEG C be 0.322N/M, 1300 DEG C be 0.321N/M, 1400 DEG C for 0.320N/M, substantially quite.Therefore to overcome general high alumina glass surface tension large for glass of the present invention, and difficulty or ease reach ideal thickness and the large problem of thickness difference, are particularly suitable for shakeouing and stretching technique at molten tin bath.
Instant component is as shown in table 1 compared with common float glass component:
Table 1
As known from Table 1, Comparatively speaking, high strength protective glass component of the present invention belongs to aluminosilicate system glass, and common float glass component belongs to sodium-calcium-silicate system glass for glass ingredient of the present invention and common float glass component.
Glass ingredient of the present invention compared with common thin float glass component, SiO
2content is low, Al
2o
3content is high, is equivalent to use Al in glass ingredient
2o
3replace SiO
2, both ensured that Network former overall content was not less than 70%, glass properties can be made again to reach service requirements.
Glass ingredient of the present invention controls alap CaO content, improves the content of MgO simultaneously, ensure that the consumption of RO, to ensure the fusing of glass.
K
2o effectively can improve the pre-arcing characterisitics of glass mineral admixtion, increases the glossiness of touch-screen glass, under the prerequisite not affecting ion-exchange Na+ source, invention increases K
2o content.
With Al
2o
3, SiO
2, MgO, Na
2o, K
2o is basic glass ingredient, and these are the oxide compounds determining glassy product salient features.Devise some new constituents MoO to improve glass property simultaneously
3, Bi
2o
3and GeO
2, local directed complete set is done to composition.MoO
3m-O bonding force strong, anion radical can be connected to larger composite anion group, surface tension is significantly declined.Bi
3+polarization force and polarizability are all comparatively large, and polarization makes ion distortion, covalent linkage composition increases, thus weakens Si-O bonding force, the effect of landing low viscosity.A small amount of GeO
2replace part SiO
2, the temperature of fusion of glass can be reduced.
Brief description is each constitutive property of the present invention once:
[SiO
2]
Si0
2be glass network former oxide compound, the physical strength of glass, chemical stability, thermostability etc. can be improved, but it be again more infusibilized material.Work as Si0
2content lower than 59% time, glass hard (HRC65Yi Shang) and physical strength too low, chemical stability be deteriorated.But work as Si0
2content higher than 62% time, then high temperature viscosity will raise thus reduce the melting behaviour of glass.Therefore, preferred Si0
2content is not less than 59%, and not higher than 62%.
Al
2O
3]
Al
2o
3the active principle improving glass swelling softening temperature, also and SiO simultaneously
2common formation glass body.Its existence makes glass have high chemical stability and excellent material mechanical performance.This monoxide add glass chemical resistance ability, can effectively improve glass devitrification and water tolerance.Al of the present invention
2o
3if content lower than 12% time, hardness and the intensity of glass are too small, and particularly chemical enhanced performance is not good.Therefore be at least necessary more than 12%, when its consumption higher than more than 14% time, Vitrea viscosity is excessive, the fusing of glass and clarification difficulty, glass batch too high, the glass defect of glass melting temperature increase.
[R
2O]（R=Na，K）
R
2o is fusing assistant, can reduce high temperature viscosity and the temperature of fusion of glass.Na
2o and K
2the interaction of O and effectively can improve the processability of glass, reduces tendency towards devitrification significantly.But Na
2the introducing of O reduces physical strength, the chemical stability and thermostability etc. of glass, is also the root causing weathering of glass.Ion-exchange demand when therefore meeting chemical enhanced, preferable range is 11%-13%.K
2o can improve physical strength and the chemical stability of glass, increases glass transparent degree and glossiness.K
2o content is preferably designed for 4-5%.
[MgO]+[CaO]
MgO and CaO is network modifying oxide, significantly can reduce the high temperature viscosity of glass, improves the low temperature viscosity of glass, enables glass be easy to melting when high temperature, and this is that the high speed pulling of float process creates good condition.In Mobile phone screen glass following process process, CaO causes stress relaxation, affects chemical tempering effect, therefore strict control as far as possible.The impact of MgO counter stress is little, improves glass properties simultaneously, improves chemical stability and the physical strength of glass.Content of MgO preferred design 5 ~ 6%.
［MoO
3］＋［Bi
2O
3］+[GeO
2］
MoO
3m-O bonding force strong, anion radical can be connected to larger composite anion group, surface tension significantly be declined, is easy to shaping.But MoO
3for refractory oxide, optimization range is 0.6 ~ 0.8%.Bi
3+polarization force and polarizability are all comparatively large, and polarization makes ion distortion, covalent linkage composition increases, thus weakens Si-O bonding force, the effect of landing low viscosity, therefore Bi
2o
3effectively can reduce the temperature of fusion of glass, be preferably designed for 1.1 ~ 1.5%.A small amount of GeO
2replace part SiO
2, the temperature of fusion of glass can be reduced, many can increase the coefficient of expansion, be preferably designed for 1.2 ~ 1.3%.Consider Cost Problems MoO
3+ Bi
2o
3+ GeO
2resultant is 3.0 ~ 3.5% to be advisable.
The SnO of 0.5% is adopted in the present invention
2with 0.25% CeO
2and sodium-chlor (containing rate 1%) and SODIUMNITRATE (containing rate 1.5%) are as finings.
For ensureing that the glassy product of present component has a good inner quality and glass processing quality, strict iron, titanium and the calcium oxide controlling glass, total amount is no more than 0.75%.
Embodiment
Be described in further detail the present invention below in conjunction with embodiment, given embodiment does not form any limitation of the invention:
A high strength safe protective glass for low surface tension, the component in units of mass percent and consumption as follows: SiO
259 ~ 62%, Al
2o
32 ~ 14%, Na
2o11 ~ 13%, CeO
20.25%, SnO
20.5%, MgO5 ~ 6%, K
2o4 ~ 5%, MoO
30.6% ~ 0.8%, Bi
2o
31.1% ~ 1.5%, GeO
21.2% ~ 1.3%, other impurity (Fe
2o
3+ TiO
2+ CaO) be 0.25 ~ 0.75%; Wherein MoO
3+ Bi
2o
3+ GeO
2resultant is: 3.0 ~ 3.5%.
SiO is introduced with low iron-stone sand
2, aluminum oxide powder introduces Al
2o
3, soda ash, sodium-chlor, SODIUMNITRATE introduce Na
2o, MgO introduced by Stan-Mag Magnesium Carbonate, and salt of wormwood introduces K
2o, CeO
2, SnO
2, MoO
3, Bi
2o
3and GeO
2deng using industrial chemicals cerium dioxide, tindioxide, molybdic oxide, bismuth oxide and germanium oxide powder respectively.According to the weighing accurate in scale given by component and Homogeneous phase mixing, be prepared into admixtion.Founded in glass-melting furnace by this admixtion, temperature reaches 1600 DEG C, and melting time is 2 hours.
The present invention adopts CeO
2, SnO
2, sodium-chlor and SODIUMNITRATE as finings, finings add-on is: CeO
2account for 0.25%, SnO of glass total amount
2account for 0.5% of glass total amount, sodium-chlor is 1% containing rate, and SODIUMNITRATE is 1.5% containing rate.
Embodiment component is as shown in table 2:
Table 2 embodiment component
| Numbering | SiO 2 | Al 2O 3 | MgO | Na 2O | K 2O | SnO2 | CeO 2 | MoO 3 | Bi 2O 3 | GeO 2 | CaO | TiO 2 | Fe 2O 3 |
| 1 | 59 | 14 | 5 | 13 | 4.5 | 0.5 | 0.25 | 0.7 | 1.5 | 1.3 | 0.08 | 0.15 | 0.02 |
| 2 | 62 | 12 | 5.4 | 11 | 5 | 0.5 | 0.25 | 0.6 | 1.3 | 1.2 | 0.49 | 0.25 | 0.01 |
| 3 | 60.6 | 13 | 6 | 12 | 4 | 0.5 | 0.25 | 0.8 | 1.1 | 1.3 | 0.23 | 0.20 | 0.02 |
Embodiment 1: according to 1 flint glass F component in table 2, the high strength safe protective glass obtained, 10
2the temperature of dPas viscosity is 1589 DEG C, 10
4the temperature of dPas viscosity is 1116 DEG C, 10
11the temperature of dPas viscosity is 603 DEG C, 10
14.5the temperature of dPas viscosity is 509 DEG C; Surface tension 900 DEG C be 0.339N/M, 1200 DEG C be 0.319N/M, 1300 DEG C be 0.317N/M, 1400 DEG C for 0.311N/M.Former water-fast grade is less than 3 grades (Na2O separates out 35.56 μ g/g glass), and Vickers' hardness is 590,1.0mm ultimate compression strength 336MPa.425 DEG C of process 8 hours chemical enhanced rear surface hardness 641, ultimate compression strength 805MPa.
Embodiment 2: according to 2 flint glass F components in table 2, the high strength protective glass obtained, 10
2the temperature of dPas viscosity is 1578 DEG C, 10
4the temperature of dPas viscosity is 1119 DEG C, 10
11the temperature of dPas viscosity is 607 DEG C, 10
14.5the temperature of dPas viscosity is 512 DEG C; Surface tension 900 DEG C be 0.340N/M, 1200 DEG C be 0.320N/M, 1300 DEG C be 0.318N/M, 1400 DEG C for 0.312N/M.Former water-fast grade is less than 3 grades (Na2O separates out 41.62 μ g/g glass), and former Vickers' hardness is 595,1.0mm ultimate compression strength 342MPa, chemical enhanced rear surface hardness 646, ultimate compression strength 810MPa.
Embodiment 3: according to 3 flint glass F components in table 2, the high strength protective glass obtained, 10
2the temperature of dPas viscosity is 1582 DEG C, 10
4the temperature of dPas viscosity is 1119 DEG C, 10
11the temperature of dPas viscosity is 608 DEG C, 10
14.5the temperature of dPas viscosity is 513 DEG C; Surface tension 900 DEG C be 0.339N/M, 1200 DEG C be 0.318N/M, 1300 DEG C be 0.317N/M, 1400 DEG C for 0.311N/M.Former water-fast grade is less than 3 grades (Na2O separates out 43.58 μ g/g glass), and Vickers' hardness is 587,1.0mm ultimate compression strength 332MPa.Chemical enhanced rear surface hardness 631, ultimate compression strength 796MPa.
Common float glass process former water-fast grade is 4 grades (Na2O separates out and is about 280 μ g/g glass), surperficial Vickers' hardness 533,1.0mm ultimate compression strength 243MPa.Chemical enhanced rear surface hardness 582, ultimate compression strength 479MPa.
Claims (2)
1. a high strength safe protective glass for low surface tension, is characterized in that, the component of described glass and mass percent are: SiO
259 ~ 62%, Al
2o
312 ~ 14%, Na
2o11 ~ 13%, CeO
20.25%, SnO
20.5%, MgO5 ~ 6%, K
2o4 ~ 5%, MoO
30.6% ~ 0.8%, Bi
2o
31.1% ~ 1.5%, GeO
21.2% ~ 1.3%, other impurity Fs e
2o
3+ TiO
2+ CaO is 0.25 ~ 0.75%; Wherein MoO
3+ Bi
2o
3+ CeO
2resultant is: 3.0 ~ 3.5%; According to the glass that described glass ingredient is founded, the temperature of series of features viscosity points is respectively: 10
2the temperature of dPas viscosity is less than 1590 DEG C, 10
4the temperature of dPas viscosity is less than 1120 DEG C, 10
11the temperature of dPas viscosity is less than 608 DEG C, 10
14.5the temperature of dPas viscosity is less than 513 DEG C; Series of features surface tension is respectively: at 900 DEG C for below 0.341N/M, 1200 DEG C is below 0.322N/M, and 1300 DEG C is below 0.320N/M, and 1400 DEG C is below 0.318N/M.
2. the preparation method of the high strength safe protective glass of a kind of low surface tension as claimed in claim 1, is characterized in that: introduce SiO with low iron-stone sand
2, aluminum oxide powder introduces Al
2o
3, soda ash, sodium-chlor, SODIUMNITRATE introduce Na
2o, MgO introduced by Stan-Mag Magnesium Carbonate, and salt of wormwood introduces K
2o, CeO
2, SnO
2, MoO
3,bi
2o
3and GeO
2use industrial chemicals cerium dioxide, tindioxide, molybdic oxide, bismuth oxide and germanium oxide powder respectively; According to the mass percent accurate weighing of component and Homogeneous phase mixing, be prepared into admixtion, this admixtion is founded in glass-melting furnace; Adopt CeO
2, SnO
2, sodium-chlor and SODIUMNITRATE as finings, finings add-on is: CeO
2account for 0.25%, SnO of glass total amount
2account for 0.5% of glass total amount, sodium-chlor is 1% containing rate, and SODIUMNITRATE is 1.5% containing rate.
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| CN111533448B (en) * | 2020-04-07 | 2022-09-13 | 山东柔光新材料有限公司 | Alkali aluminosilicate flexible glass with ultraviolet absorption and low surface tension |
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