CN102408193A - Glass composition, ultrathin glass prepared from glass composition, preparation method and application - Google Patents
Glass composition, ultrathin glass prepared from glass composition, preparation method and application Download PDFInfo
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- CN102408193A CN102408193A CN2011102247630A CN201110224763A CN102408193A CN 102408193 A CN102408193 A CN 102408193A CN 2011102247630 A CN2011102247630 A CN 2011102247630A CN 201110224763 A CN201110224763 A CN 201110224763A CN 102408193 A CN102408193 A CN 102408193A
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- 239000011521 glass Substances 0.000 title claims abstract description 90
- 239000000203 mixture Substances 0.000 title claims abstract description 48
- 238000002360 preparation method Methods 0.000 title abstract 2
- 239000005368 silicate glass Substances 0.000 claims abstract description 21
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims abstract description 6
- 239000000463 material Substances 0.000 claims abstract description 6
- 229910052700 potassium Inorganic materials 0.000 claims description 21
- 229910052708 sodium Inorganic materials 0.000 claims description 17
- 229910004298 SiO 2 Inorganic materials 0.000 claims description 15
- 239000000126 substance Substances 0.000 claims description 12
- 238000005496 tempering Methods 0.000 claims description 12
- 239000005357 flat glass Substances 0.000 claims description 8
- 238000000034 method Methods 0.000 claims description 8
- 150000003839 salts Chemical class 0.000 claims description 8
- 238000002844 melting Methods 0.000 claims description 6
- 230000008018 melting Effects 0.000 claims description 6
- 238000001816 cooling Methods 0.000 claims description 5
- 239000010953 base metal Substances 0.000 claims description 3
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N iron oxide Inorganic materials [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 claims description 3
- 229910001960 metal nitrate Inorganic materials 0.000 claims description 3
- NDLPOXTZKUMGOV-UHFFFAOYSA-N oxo(oxoferriooxy)iron hydrate Chemical compound O.O=[Fe]O[Fe]=O NDLPOXTZKUMGOV-UHFFFAOYSA-N 0.000 claims description 3
- KKCBUQHMOMHUOY-UHFFFAOYSA-N Na2O Inorganic materials [O-2].[Na+].[Na+] KKCBUQHMOMHUOY-UHFFFAOYSA-N 0.000 abstract 1
- 229910052910 alkali metal silicate Inorganic materials 0.000 abstract 1
- ADCOVFLJGNWWNZ-UHFFFAOYSA-N antimony trioxide Inorganic materials O=[Sb]O[Sb]=O ADCOVFLJGNWWNZ-UHFFFAOYSA-N 0.000 abstract 1
- 229910052593 corundum Inorganic materials 0.000 abstract 1
- 230000001681 protective effect Effects 0.000 abstract 1
- 239000005361 soda-lime glass Substances 0.000 abstract 1
- 229910001845 yogo sapphire Inorganic materials 0.000 abstract 1
- 239000011734 sodium Substances 0.000 description 30
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 11
- FGIUAXJPYTZDNR-UHFFFAOYSA-N potassium nitrate Chemical compound [K+].[O-][N+]([O-])=O FGIUAXJPYTZDNR-UHFFFAOYSA-N 0.000 description 10
- 229910052742 iron Inorganic materials 0.000 description 9
- 238000006124 Pilkington process Methods 0.000 description 5
- 238000004031 devitrification Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 5
- 238000000465 moulding Methods 0.000 description 5
- 235000010333 potassium nitrate Nutrition 0.000 description 5
- 239000004323 potassium nitrate Substances 0.000 description 5
- 238000002474 experimental method Methods 0.000 description 4
- 238000000227 grinding Methods 0.000 description 4
- 238000005498 polishing Methods 0.000 description 4
- 238000010257 thawing Methods 0.000 description 4
- 230000000052 comparative effect Effects 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- CWYNVVGOOAEACU-UHFFFAOYSA-N Fe2+ Chemical compound [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 description 2
- 238000003723 Smelting Methods 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000002425 crystallisation Methods 0.000 description 2
- 230000008025 crystallization Effects 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- NPYPAHLBTDXSSS-UHFFFAOYSA-N Potassium ion Chemical compound [K+] NPYPAHLBTDXSSS-UHFFFAOYSA-N 0.000 description 1
- FKNQFGJONOIPTF-UHFFFAOYSA-N Sodium cation Chemical compound [Na+] FKNQFGJONOIPTF-UHFFFAOYSA-N 0.000 description 1
- 239000005347 annealed glass Substances 0.000 description 1
- 238000000137 annealing Methods 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- 238000005352 clarification Methods 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000004927 fusion Effects 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 229910001414 potassium ion Inorganic materials 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 230000011218 segmentation Effects 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 229910001415 sodium ion Inorganic materials 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
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- Glass Compositions (AREA)
Abstract
The invention discloses a high-alumina high-alkali silicate glass composition, which comprises the following components in percentage by mass: SiO 2258.0-62.0％、Al2O3≥16.0％、CaO0.15-0.6％、MgO3.0-4.0％、K2O+Na2O≥15％、Sb2O30.3-0.5% and ZrO0.5-1.0%, wherein Na is2O content higher than K2O content, high-strength ultrathin glass with the thickness of 0.3-1.3mm prepared from the O content, and a preparation method and application of the high-strength ultrathin glass. The tempered ultrathin glass has the surface strength obviously higher than that of common soda-lime-silica glass, has excellent mechanical properties, particularly has outstanding hardness, toughness, scratch resistance and the like, and can be used as a protective cover plate material of electronic products such as mobile phones, computers and the like with touch screens and handwriting functions.
Description
Technical field
The present invention relates to a kind of glass composition, by its ultra-thin glass of processing, method for making and purposes, more specifically, the ultra-thin glass, method for making and the purposes that relate to the highly basic silicate glass composition of a kind of high alumina, process by said glass composition.
Background technology
Ultra-thin glass is widely used in the electronic information industry, and its thickness generally is lower than 1.3mm, mainly as the glass substrate material.Recently, along with the development of mobile phone and dull and stereotyped computer touch screen, the hardness of ultra-thin glass and planeness etc. are had higher requirement.
Summary of the invention
The present invention provides a kind of high alumina highly basic silicate glass composition, and said compsn comprises by percentage to the quality: SiO
258.0-62.0%, Al
2O
3>=16.0%, CaO 0.15-0.6%, MgO3.0-4.0%, K
2O+Na
2O>=15%, Sb
2O
30.1-0.7% and ZrO 0.5-1.0%, wherein Na
2O content is higher than K
2O content.
It is the ultra-thin glass of 0.3-1.3mm that the present invention also provides the thickness of being processed by above-mentioned silicate glass composition.
The present invention also provides a kind of method that thickness is the ultra-thin glass of 0.3-1.3mm for preparing, and comprises
A. at 1600-1850 ℃ of a kind of silicate glass composition of melting, said compsn comprises by percentage to the quality: SiO
258.0-62.0%, Al
2O
3>=16.0%, CaO 0.15-0.6%, MgO 3.0-4.0%, K
2O+Na
2O>=15%, Sb
2O
30.1-0.7% and ZrO0.5-1.0%, wherein Na
2O content is higher than K
2O content;
B. glass composition is shaped to the sheet glass of 0.3-1.3mm, and cooling; With
C. sheet glass is handled to carry out chemical tempering in 390-500 ℃ base metal nitrate fused salt, the treatment time is preferably 5-11 hour.
Ultra-thin glass of the present invention can be used as the cover sheet material of electronic products such as mobile phone with touch-screen or handwriting functions, computer.
Embodiment
On the one hand, the present invention provides a kind of high alumina highly basic silicate glass composition, and said compsn comprises by percentage to the quality: SiO
258.0-62.0%, Al
2O
3>=16.0%, CaO0.15-0.6%, MgO 3.0-4.0%, K
2O+Na
2O>=15%, Sb
2O
30.1-0.7% and ZrO0.5-1.0%, wherein Na
2O content is higher than K
2O content.
Obviously, all components content sum is 100% in the glass composition of the present invention.
Among the present invention, do not particularly point out if having, component content all refers to the quality percentage composition, based on the total amount meter of compsn.
Among the present invention, do not particularly point out if having, then various operations are all implemented under the room temperature normal pressure.
In the glass composition composition of the present invention, SiO
2Be important network former, form irregular contiguous network, become the skeleton of glass with the structure constituent element of silicon-oxy tetrahedron.It not only can form glass, and can improve physical strength, chemicalstability, thermostability of glass etc., but it is again the material than refractory, so SiO
2Content has its optimum value.If content is lower than 58% and can't obtains this effect fully.On the other hand, if content surpasses 62%, then devitrification takes place in glass easily, and the difficulty that is shaped, and viscosity rising are difficult to make glass to homogenize.SiO of the present invention
2Content is 58.0-62.0%, is preferably 59.0-61.0%.
Al
2O
3Be intermediate oxide, can participate in network and play the effect of network generation body, can reduce the crystallization tendency of glass, improve the viscosity of glass, improve chemicalstability, thermostability, physical strength, hardness and the specific refractory power of glass.Al
2O
3Also be the neccessary composition that improves glass modulus, according to the requirement of surface hardness, its massfraction is more than 16%.On the other hand, because Al
2O
3Compare infusibility, its massfraction is no more than 20% usually.Among the present invention, Al
2O
3Massfraction be preferably 16.0-18.0%, 16.5-17.5% more preferably.Simultaneously, introduce K
2O, Na
2Fusing assistants such as O, CaO, MgO, and the proper ratio of regulating them are to reach the best effect of fluxing.
K
2O and Na
2O is a network modifying oxide, can make silicon-oxy tetrahedron [SiO after the introducing
4] lax, the fracture of formed network, thereby solved SiO
2The problem of refractory can be used as fusing assistant, makes the glass melting temperature descend.In concrete embodiment, K
2O and Na
2O massfraction sum is more than 15%, preferably less than 20%.In preferred embodiments, Na
2The O massfraction is greater than K
2O massfraction, for example Na
2O and K
2The ratio of O massfraction preferably in the 3.0-5.0 scope, helps the sodium ion in the potassium ion displacement glass in subsequent processes like this in the 2.5-6.0 scope, make glass surface produce huge stress, realizes the reinforcement of glass mechanical property.Simultaneously, K
2O can reduce the tendency towards devitrification of glass, increases the transparency and the gloss of glass.Work as K
2O and Na
2When the O total amount is too low, cause glass to melt difficulty; When total amount is too high, thermal expansivity will increase substantially, and strain point significantly reduces.Therefore more preferably K among the present invention
2O2.5-4.5%, and Na
2O 12.5-15.0%, preferred especially K
2O 3.0-4.5%, and Na
2O13.5-15.0%.
Iron-holder should be lower in the compsn, to improve the transmitance of glass itself, improves the diathermancy of glass metal when fusing, clarification and moulding, annealing simultaneously.For guaranteeing the stable of glass flow, need the total ferric oxide content in the strict feed glass compsn.Take that the ferrous mode guarantees the diathermic unanimity of glass metal in the feed glass liquid.Through to iron level in the composition and the strict control of full iron/ferrous, improved the inner quality and the external quality of glass.Total ferric oxide content of the present invention is controlled to be and is no more than 0.03%.
CaO, MgO are network modifying oxides, also can make silicon-oxy tetrahedron [SiO after the introducing
4] formed network relaxes, fracture, can improve physical strength, chemicalstability and the thermostability of glass.MgO preferred mass mark 3-4%.The CaO that introduces among the present invention is generally in the 0.15-0.6% scope.
ZrO system promotes the composition of the fusibility of glass, can significantly improve elasticity, chemicalstability and the thermotolerance of glass, and in addition, it also is good degasifier.A small amount of add this composition to reduce devitrification temperature, prevent crystallization and improve chemical durability effective.When the content of ZrO in the glass composition less than 2% the time, can prevent that devitrification temperature from increasing, and can be easy to prepare not can devitrification glass, in addition, glass melting temperature step-down, and this glass of easy and uniform ground fusion.ZrO content is preferably 0.5-1.0% among the present invention.
Sb
2O
3Be the composition that in glass component, plays a part finings, but as if Sb in the glass composition
2O
3Content be less than 0.1%, then can not get effect of sufficient; On the other hand, if surpass 1.5%, owing to have the boiling problem again of the heat treated of secondary processing, so be necessary its content is controlled to be below 1.5%.In addition, consider again ebullient stability, preferred Sb
2O
3Massfraction below 0.7%, so the present invention be chosen between the 0.1-0.7%, preferably between 0.3-0.5%.
Above-mentioned each composition wide in range, preferably, more preferably reaching especially preferred content range can arbitrary combination, the compsn of formation is also within the scope of the present invention.
In a preferred embodiment, silicate glass composition of the present invention comprises following composition: SiO by percentage to the quality
258.0-62.0%, Al
2O
316.0-18.0%, CaO 0.15-0.6%, MgO 3.0-4.0%, K
2O 2.5-4.5%, Na
2O 12.5-15.0%, Sb
2O
30.3-0.5% and ZrO0.5-1.0%.
In a preferred embodiment, silicate glass composition of the present invention comprises following composition: SiO by percentage to the quality
259.0-61.0%, Al
2O
316.5-17.5%, CaO0.15-0.6%, MgO 3.0-4.0%, K
2O 3.0-4.5%, Na
2O 13.5-15.0%, Sb
2O
30.3-0.5% and ZrO 0.5-1.0%.
In another preferred embodiment, silicate glass composition of the present invention is grouped into by following one-tenth by percentage to the quality: SiO
258.0-62.0%, Al
2O
316.0-18.0%, CaO0.15-0.6%, MgO 3.0-4.0%, K
2O 2.5-4.5%, Na
2O 12.5-15.0%, Sb
2O
30.3-0.5% and ZrO 0.5-1.0%.
In another preferred embodiment, silicate glass composition of the present invention is grouped into by following one-tenth by percentage to the quality: SiO
259.0-61.0%, Al
2O
316.5-17.5%, CaO0.15-0.6%, MgO 3.0-4.0%, K
2O 3.0-4.5%, Na
2O 13.5-15.0%, Sb
2O
30.3-0.5% and ZrO 0.5-1.0%.
In another preferred embodiment, (Al by percentage to the quality in the silicate glass composition of the present invention
2O
3+ CaO+MgO+K
2O+Na
2O)>=36.0%.
In another preferred embodiment, (Al by percentage to the quality in the silicate glass composition of the present invention
2O
3+ CaO+MgO+K
2O+Na
2And Al O)>=37.0%
2O
3>=16.5%.
In addition, also can add an amount of B in the glass composition
2O
3(less than 15%) is to improve strength of glass.
On the other hand, the thickness of being processed by above-mentioned glass composition is provided is the high strength slim glass of 0.3-1.3mm in the present invention.Among the present invention, described high strength slim glass is meant the ultra-thin glass of handling through chemical tempering.
In a concrete embodiment, the tensile strength range of ultra-thin glass of the present invention is (34.3-83.3) * 10
6Pa.
Unrelieved stress in the glass, unrelieved stress particularly pockety greatly reduces intensity.Experiment showed, when unrelieved stress is increased to 1.5-2 times that bending strength reduces 9-12%.After glass carries out chemical tempering, make its surface produce uniform stress, the uniform tension stress of inner formation, then can improve the physical strength of goods greatly.Through the glass that tempering is handled, the ability force rate of its anti-physical shock and thermal shocking wants high 5-10 doubly through good annealed glass.Reduce K in the glass ingredient of the present invention
2The content of O increases considerably Na
2The content of O is beneficial to chemical tempering.
Ultra-thin glass of the present invention has excellent mechanical property, especially at aspects such as hardness, toughness and scratch resistances.In a concrete embodiment, its 200g load Vickers' hardness＞650kgf/mm
2In a preferred embodiment, its 200g load Vickers' hardness＞680kgf/mm
2In a preferred embodiment, its 200g load Vickers' hardness＞700kgf/mm
2
Ultra-thin glass of the present invention can adopt float glass process and press over system production.
Therefore, on the other hand, the method that the present invention prepares the ultra-thin glass of 0.3-1.3mm comprises:
A. at 1600-1850 ℃ of a kind of silicate glass composition of melting, said compsn comprises by percentage to the quality: SiO
258.0-62.0%, Al
2O
3>=16.0%, CaO 0.15-0.6%, MgO 3.0-4.0%, K
2O+Na
2O>=15%, Sb
2O
30.1-0.7% and ZrO0.5-1.0%, wherein Na
2O content is higher than K
2O content;
B. glass composition is shaped to the sheet glass of 0.3-1.3mm, and cooling; With
C. sheet glass is handled to carry out chemical tempering in 390-500 ℃ base metal nitrate fused salt, the treatment time is preferably 5-11 hour.
In a step, with the temperature melting of glass composition in 1600-1850 ℃, smelting temperature is preferably 1650-1800 ℃.Smelting time is generally 20-100 hour, is preferably 30-80 hour, more preferably 40-60 hour.
Preferably, in a step, glass composition is melted liquid carry out the processing of vacuum row bubble.
In the b step, glass composition is melted liquid be shaped to the ultra-thin glass that thickness is 0.3-1.3mm, and cooling.Cooling is preferably carried out with segmentation refrigerative mode; For example at first evenly be cooled to 550-650 ℃ with the speed of 30-40 ℃/min; Speed with 2-10 ℃/min evenly is cooled to 450-550 ℃ then, and the speed with 90-100 ℃/min evenly is cooled in the 50-80 ℃ of scope at last.
In the c step, sheet glass is implemented acierage handle, for example in 390-500 ℃ saltpetre fused salt, handled said sheet glass 5-11 hour.More preferably treatment temp is 400-480 ℃; Treatment time is 6-10 hour.Most preferably treatment temp is 420-460 ℃; Treatment time is 7-9 hour.Among the present invention, implementing acierage treatment temperature and time also can be outside said scope, as long as can reach the effect of chemical tempering.
Products obtained therefrom 200g load Vickers' hardness:＞650kgf/mm
2
Ultra-thin glass of the present invention has wide range of applications, and especially can be used as the cover sheet material, in electronic products such as the mobile phone with touch-screen or handwriting functions, computer.
Below further specify the present invention through embodiment, but embodiment only is used for example description, the present invention is not constituted any restriction.
Embodiment
At this specification sheets, be included in following examples, the mensuration of each performance perameter of glass is all carried out according to standard GB/T 20314-2006.
Embodiment 1:
To consist of SiO by percentage to the quality
262.0%, Al
2O
316.0%, Fe
2O
30.02%, CaO 0.38%, MgO 3.5%, K
2O 3.5%, Na
2O 13.5%, Sb
2O
30.4% with about 50 hours of the thawing under about 1650 ℃ temperature and pressure-fired condition in kiln of the frit of ZrO0.7%; Through negative pressure, float glass process moulding, evenly be cooled to 600 ℃ with the speed of 30 ℃/min; Speed with 2 ℃/min evenly is cooled to 500 ℃ then, and the speed with 90 ℃/min evenly is cooled to 50 ℃ at last; Behind the grinding and polishing, in the saltpetre fused salt, carry out chemical tempering in 410 ℃ temperature and handled 10 hours, making thickness is the ultra-thin glass sample of 0.5mm.This ultra-thin glass properties of sample is following: density: 2.48g/cm
3Strain point: 560 ℃; Softening temperature: 840 ℃; PR: 0.21; Coefficient of shear: 29.7GPa; Transmitance:＞91%; 200g load Vickers' hardness: 691kgf/mm
2
Embodiment 2:
To consist of SiO by percentage to the quality
258.0%, Al
2O
318.0%, Fe
2O
30.02%, CaO 0.38%, MgO 4.0%, K
2O 4.0%, Na
2O 14.5%, Sb
2O
30.4% with about 50 hours of the thawing under about 1750 ℃ temperature and pressure-fired condition in kiln of the frit of ZrO0.7%; Through negative pressure, float glass process moulding, evenly be cooled to 600 ℃ with the speed of 35 ℃/min; Speed with 5 ℃/min evenly is cooled to 500 ℃ then, and the speed with 95 ℃/min evenly is cooled to 55 ℃ at last; Behind the grinding and polishing, in the saltpetre fused salt, carry out chemical tempering in 470 ℃ temperature and handled 6 hours, making thickness is the ultra-thin glass sample of 0.5mm.This ultra-thin glass properties of sample is following: density: 2.46g/cm
3Strain point: 545 ℃; Softening temperature: 837 ℃; PR: 0.21; Coefficient of shear: 29.5GPa; Transmitance:＞91%; 200g load Vickers' hardness: 680kgf/mm
2
Embodiment 3:
To consist of SiO by percentage to the quality
261.0%, Al
2O
317.1%, Fe
2O
30.02%, CaO 0.30%, MgO 3.5%, K
2O 3.5%, Na
2O 13.5%, Sb
2O
30.4% with about 50 hours of the thawing under about 1700 ℃ temperature and pressure-fired condition in kiln of the frit of ZrO0.68%; Through negative pressure, float glass process moulding, evenly be cooled to 600 ℃ with the speed of 40 ℃/min; Speed with 10 ℃/min evenly is cooled to 500 ℃ then, and the speed with 100 ℃/min evenly is cooled to 50 ℃ at last; Behind the grinding and polishing, in the saltpetre fused salt, carry out chemical tempering in 440 ℃ temperature and handled 7 hours, making thickness is the ultra-thin glass sample of 1.0mm.This ultra-thin glass properties of sample is following: density: 2.47g/cm
3, strain point: 546 ℃, softening temperature: 833 ℃, PR: 0.21; Coefficient of shear: 29.6GPa; Transmitance:＞91%; 200g load Vickers' hardness: 701kgf/mm
2
Embodiment 4:
To consist of SiO by percentage to the quality
259.7%, Al
2O
316.9%, Fe
2O
30.02%, CaO 0.48%, MgO 3.9%, K
2O 3.6%, Na
2O 14.4%, Sb
2O
30.3% with about 50 hours of the thawing under about 1680 ℃ temperature and pressure-fired condition in kiln of the frit of ZrO0.7%; Through negative pressure, float glass process moulding, evenly be cooled to 600 ℃ with the speed of 32 ℃/min; Speed with 6 ℃/min evenly is cooled to 500 ℃ then, and the speed with 94 ℃/min evenly is cooled to 50 ℃ at last; Behind the grinding and polishing, in the saltpetre fused salt, carry out chemical tempering in 450 ℃ temperature and handled 8 hours, making thickness is the ultra-thin glass sample of 1.0mm.This ultra-thin glass properties of sample is following: density: 2.45g/cm
3Strain point: 576 ℃; Softening temperature: 870 ℃; PR: 0.21; Coefficient of shear: 29.8GPa; Transmitance:＞91%; 200g load Vickers' hardness: 705kgf/mm
2
Comparative Examples 1:
Experimental technique and embodiment 1 are similar, and difference is that frit consists of SiO by percentage to the quality
265.0%, Al
2O
315.0%, Fe
2O
30.02%, CaO 0.25%, MgO 3.7%, K
2O 3.03%, Na
2O 12.0%, Sb
2O
30.3% with ZrO 0.7%.The ultra-thin glass thickness of sample that makes is 0.5mm.Recording its 200g load Vickers' hardness is 620kgf/mm
2
Comparative Examples 2:
Experimental technique and embodiment 2 are similar, and difference is that frit consists of SiO by percentage to the quality
264.0%, Al
2O
317.0%, Fe
2O
30.02%, CaO 0.25%, MgO 3.7%, K
2O 3.03%, Na
2O 11.0%, Sb
2O
30.3% with ZrO 0.7%.The ultra-thin glass thickness of sample that makes is 0.5mm.Recording its 200g load Vickers' hardness is 630kgf/mm
2
Comparative Examples 3:
Experimental technique and embodiment 3 are similar, and difference is that frit consists of SiO by percentage to the quality
261.0%, Al
2O
317.1%, Fe
2O
30.02%, CaO 0.30%, MgO 3.5%, K
2O 10.5%, Na
2O 6.5%, Sb
2O
30.4% with ZrO 0.68%.The ultra-thin glass thickness of sample that makes is 1.0mm.Recording its 200g load Vickers' hardness is 621kgf/mm
2
Claims (10)
1. highly basic silicate glass composition of high alumina, said compsn comprises by percentage to the quality: SiO
258.0-62.0%, Al
2O
3>=16.0%, CaO 0.15-0.6%, MgO 3.0-4.0%, K
2O+Na
2O>=15%, Sb
2O
30.1-0.7% and ZrO 0.5-1.0%, wherein Na
2O content is higher than K
2O content.
2. silicate glass composition according to claim 1, total ferric oxide content by percentage to the quality≤0.03% in the said compsn.
3. according to each described silicate glass composition among the claim 1-2, said compsn comprises by percentage to the quality: SiO
258.0-62.0%, Al
2O
316.0-18.0%, CaO0.15-0.6%, MgO 3.0-4.0%, K
2O 2.5-4.5%, Na
2O 12.5-15.0%, Sb
2O
30.3-0.5% and ZrO 0.5-1.0%.
4. according to each described silicate glass composition among the claim 1-3, said compsn comprises by percentage to the quality: SiO
259.0-61.0%, Al
2O
316.5-17.5%, CaO0.15-0.6%, MgO 3.0-4.0%, K
2O 3.0-4.5%, Na
2O 13.5-15.0%, Sb
2O
30.3-0.5% and ZrO 0.5-1.0%.
5. according to each described silicate glass composition among the claim 1-3, said compsn is grouped into by following one-tenth by percentage to the quality: SiO
258.0-62.0%, Al
2O
316.0-18.0%, CaO 0.15-0.6%, MgO 3.0-4.0%, K
2O 2.5-4.5%, Na
2O 12.5-15.0%, Sb
2O
30.3-0.5% and ZrO 0.5-1.0%.
6. according to each described silicate glass composition among the claim 1-5, said compsn is grouped into by following one-tenth by percentage to the quality: SiO
259.0-61.0%, Al
2O
316.5-17.5%, CaO 0.15-0.6%, MgO 3.0-4.0%, K
2O 3.0-4.5%, Na
2O 13.5-15.0%, Sb
2O
30.3-0.5% and ZrO 0.5-1.0%.
7. the ultra-thin glass that thickness is 0.3-1.3mm is processed by the silicate glass composition of one of claim 1-6.
8. ultra-thin glass according to claim 7, its 200g load Vickers' hardness＞650kgf/mm
2, preferred＞680kgf/mm
2, more preferably＞700kgf/mm
2
9. prepare the method for claim 7 or 8 described ultra-thin glass, comprising:
A. at 1600-1850 ℃ of a kind of silicate glass composition of melting, said compsn comprises by percentage to the quality: SiO
258.0-62.0%, Al
2O
3>=16.0%, CaO 0.15-0.6%, MgO 3.0-4.0%, K
2O+Na
2O>=15%, Sb
2O
30.1-0.7% and ZrO0.5-1.0%, wherein Na
2O content is higher than K
2O content;
B. glass composition is shaped to the sheet glass of 0.3-1.3mm, and cooling; With
C. sheet glass is handled to carry out chemical tempering in 390-500 ℃ base metal nitrate fused salt, the treatment time is preferably 5-11 hour.
10. the purposes of claim 7 or 8 described ultra-thin glass is used as the cover sheet material.
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| CN103232171A (en) * | 2013-03-29 | 2013-08-07 | 中国建筑材料科学研究总院 | Glass cover plate for touch screens and preparation method thereof |
| CN104166846A (en) * | 2014-08-26 | 2014-11-26 | 南昌欧菲生物识别技术有限公司 | Fingerprint recognition sensor packaging structure and ultra-thin glass manufacturing method |
| CN105384336A (en) * | 2015-11-02 | 2016-03-09 | 河南安彩高科股份有限公司 | Silicate glass composition, ultra-thin glass made of same, preparing method and application |
| CN105923995A (en) * | 2016-04-26 | 2016-09-07 | 东莞市银通玻璃有限公司 | Ultrathin toughened glass and preparation method thereof |
| CN105948484A (en) * | 2016-04-21 | 2016-09-21 | 东莞市银泰玻璃有限公司 | Ultrathin high strength glass and preparation method thereof |
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| CN105384336A (en) * | 2015-11-02 | 2016-03-09 | 河南安彩高科股份有限公司 | Silicate glass composition, ultra-thin glass made of same, preparing method and application |
| CN105384336B (en) * | 2015-11-02 | 2018-07-27 | 河南安彩高科股份有限公司 | A kind of silicate glass composition and its ultra-thin glass made and preparation method and application |
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| CN105923995A (en) * | 2016-04-26 | 2016-09-07 | 东莞市银通玻璃有限公司 | Ultrathin toughened glass and preparation method thereof |
| CN106630617A (en) * | 2016-12-06 | 2017-05-10 | 巢湖市伟业玻璃有限公司 | High-strength anti-cracking and high temperature-resistant safety glass for microwave oven |
| CN106746633A (en) * | 2016-12-06 | 2017-05-31 | 巢湖市伟业玻璃有限公司 | For pressure-resistant high strength glass and preparation method on gas range display panel |
| CN107162416A (en) * | 2017-06-01 | 2017-09-15 | 重庆鑫景特种玻璃有限公司 | A kind of high aluminosilicate glass for automobile sandwich-glass |
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Application publication date: 20120411 |