CN104909561B - A kind of light scale of construction flexibility Flouride-resistani acid phesphatase cover glass and preparation method thereof - Google Patents

A kind of light scale of construction flexibility Flouride-resistani acid phesphatase cover glass and preparation method thereof Download PDF

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CN104909561B
CN104909561B CN201510289763.7A CN201510289763A CN104909561B CN 104909561 B CN104909561 B CN 104909561B CN 201510289763 A CN201510289763 A CN 201510289763A CN 104909561 B CN104909561 B CN 104909561B
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cover glass
glass
flouride
temperature
resistani acid
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CN104909561A (en
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卢勇
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秦皇岛星箭特种玻璃有限公司
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    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02PCLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P40/00Technologies relating to the processing of minerals
    • Y02P40/50Glass production, e.g. reusing waste heat during processing or shaping
    • Y02P40/57Improving the yield, e-g- reduction of reject rates

Abstract

A kind of light scale of construction flexibility Flouride-resistani acid phesphatase cover glass, the raw material composition of described cover glass are:By mass percentage, SiO2:50.8 62.5%, Al2O3:0.2 0.7%, B2O3:10 15.9%, MgO:8 10.6%, Na2O:3 6%, Li2O:11.1 16.4%, K2O:0.1 0.5%, CeO2:4.6 5.1%, P2O5:0.2‑1.6.A kind of preparation method of described light scale of construction flexibility Flouride-resistani acid phesphatase cover glass, comprises the following steps:A, dispensing;B, feed;C, found;D, cast molding;E, anneal;F, cut;G, grind;H, polish;I, clean;K, drying;L, low-temperature ion exchanges, and obtains light scale of construction flexibility Flouride-resistani acid phesphatase cover glass.The weight of light scale of construction flexibility Flouride-resistani acid phesphatase cover glass prepared by the present invention reduces, and reduces take-off weight during satellite launch, reduces launching costs.

Description

A kind of light scale of construction flexibility Flouride-resistani acid phesphatase cover glass and preparation method thereof

Technical field

The invention belongs to the auxiliary products technical field of Space Equipment, it is related to the field of space special glass, specifically relates to A kind of and light scale of construction flexibility Flouride-resistani acid phesphatase cover glass and preparation method thereof.

Background technology

In earth orbit space, there is the cosmic ray from the milky way galaxy, the radiation zone of the earth and solar energy particle etc. Radiation, is encroached on when spacecraft is in space motion by Energetic particle and ray, in spacecraft both wings Solar panel can be breakdown, causes short circuit and fails, in order to protect solar cell, is generally capped on the solar cell Cover glass.Common flint glass works as glass in normal circumstances in use, will not typically change its visible light-transmissive performance Glass spacecraft using when can receive the radiation that high energy crosses particle or ray, and most of glass in various high energy particles or Under the radiation of ray, color and luster and the change through ability will be caused, glass is gone bad, transmitance is remarkably decreased, it is impossible to ensure foot Enough sun light transmission rates, aerospace craft is set to lose reliable power supply supply.Space is used as space by the use of radiation resistance glass cover plate The important component of solar cell, effectively protect solar cell from the bombardment of Energetic particle, extend solar energy The service life of battery, is not reduced or slight decrease visible light transmissivity, and filters out ultraviolet, spacecraft is obtained reliably Ground source supply.

With developing rapidly for Space Science and Technology, China starts development of new satellite, is taken using flexible solar battery windsurfing For semi-rigid plate, the primary energy system of satellite is preferably adapted to space environment, reduce the influence to solar cell, simultaneously The flexible flexible solar battery windsurfing used, which is tried one's best, reduces the weight of itself, the sun in satellite, airship and spacecraft The substrate and cover plate of energy battery use ultra-thin glass to save transmitting and operating energy consumption, and fly weight is played when reducing satellite launch Amount, reduce launching costs.

The content of the invention

The present invention reduces take-off weight during satellite launch, reduces transmitting expense to reduce the weight of Flouride-resistani acid phesphatase cover glass With, there is provided a kind of light scale of construction flexibility Flouride-resistani acid phesphatase cover glass and preparation method thereof, the present invention are to realize the skill that its purpose uses Art scheme is:

A kind of light scale of construction flexibility Flouride-resistani acid phesphatase cover glass, the raw material composition of described cover glass are:By mass percentage Meter, SiO2:50.8-62.5%, Al2O3:0.2-0.7%, B2O3:10-15.9%, MgO:8-10.6%, Na2O:3-6%, Li2O:11.1-16.4%, K2O:0.1-0.5%, CeO2:4.6-5.1%, P2O5:0.2-1.6.

A kind of light scale of construction flexibility Flouride-resistani acid phesphatase cover glass, the raw material composition of described cover glass are:By mass percentage Meter, SiO2:51.2-55.6%, Al2O3:0.4-0.6%, B2O3:12.3-14.6%, MgO:8.3-9.2%, Na2O:4- 5.8%, Li2O:11.5-13.6%, K2O:0.1-0.3%, CeO2:4.7-5.0%, P2O5:0.8-1.4.

A kind of preparation method of light scale of construction flexibility Flouride-resistani acid phesphatase cover glass, comprises the following steps:

A, dispensing:Each raw material is weighed according to the raw material of cover glass composition, is well mixed, it is standby;

B, feed:The step A raw materials being well mixed are added in fusion crucible, it is standby;

C, found:Heating fusion crucible makes the melting sources in fusion crucible obtain glass metal into liquid;

D, cast molding:The glass metal that step C is obtained is molded by die casting, obtains pouring cast glass;

E, anneal:The cast glass that pours that step D is obtained is sent into progress fine annealing processing in annealing furnace, controls annealing temperature For 500-650 DEG C, annealing rate is 1-2 DEG C/h;

F, cut:Cover glass is cut by line cutting technology;

G, grind:The cover glass of step F well cuttings is ground by two-sided frosted technology;

H, polish:Cover glasses of the step G by grinding is polished by Double-Sided Polishing Technology;

I, clean:Cover glass after being polished using deionized water cleaning step H, clean 2-5 times, surface clean is done Only;

K, drying:Cover glass after cleaning is put into vacuum drying chamber and is dried, 40-65 DEG C of drying temperature, is done The dry time is 10-25 minutes;

L, low-temperature ion exchanges:Dried cover glass is put into the salt bath for filling potassium nitrate fused salt carry out low temperature from Son exchanges, and exchange temperature is 330-390 DEG C, and swap time is 20-50 minutes.

Charging described in step B is using feed way stage by stage:When the temperature of fusion crucible is 700-800 DEG C, the is carried out One stage fed, and feeding quantity is the whole volume of fusion crucible;First stage continues to heat up after feeding, when fusion crucible When temperature is 1530-1560 DEG C, second stage charging is carried out, now because part material has been decomposed to form glass metal, fusing The upper part space of crucible occur it is vacant, feeding quantity be metal line on fusion crucible residual volume.

Heat temperature raising, described Si-Mo rod resistance furnace are carried out using Si-Mo rod resistance furnace in melting process described in step C Maximum operation (service) temperature be 1700 DEG C, rated power 25kw.

It is 20-30h that melting process described in step C, which controls melting time, and it is oxidizing atmosphere to control melting process.

Two-sided frosted technology described in step G is that the upper and lower surface of cover glass is ground simultaneously by grinder Mill.

Double-Sided Polishing Technology described in step H is that the upper and lower surface of cover glass is thrown simultaneously by polishing machine Light.

Fusion crucible described in step B is silica crucible.

The beneficial effects of the invention are as follows:

1) B is increased in glass formula of the present invention2O3、Li2O, the content of the oxide such as MgO, such as B2O3、Li2O, MgO density Respectively 1.84g/cm3, 2.013g/cm3, 2.9g/cm3, reduce high-density component such as K2O、Na2O、Al2O3Density be respectively 2.27g/cm3, 2.32g/cm3, 3.5-3.9g/cm3Content, while eliminate and prepare cover glass in the prior art and generally recognize For glass ingredient ZnO (the density 5.7g/cm that need to be added3) and BaO (density 5.6g/cm3), so from the design of raw material Reduce the density of fusion cast glass, reduce the density of Flouride-resistani acid phesphatase cover glass, at the same the composition of cover glass of the present invention due to Li2O content is up to 12.5%, while Li2O also has the viscosity for reducing glass, reduces the performance of glass melting temperature, so Follow-up tempering, which improves, can reach more preferable effect in intensity and increase pliability, potassium nitrate is Flouride-resistani acid phesphatase cover glass chemistry The main fused salt of tempering, in the molten state, the K in fused salt+With the Na in glass+And Li+Exchange, so as to change the table of glass Face structure, due to K+Compare Na+And Li+Big (the K of radius+Radius 0.138nm, Na+Radius 0.102nm, Li+Radius 0.076nm), and Li+And Na+It is smaller compared to radius, so by K+And Li+Bigger compressive stress layer is formed after exchange in glass surface, makes glass table Face structure is finer and close, and Flouride-resistani acid phesphatase cover glass pliability performance is more preferable, and the performance of anti-Space Particle impact is also more preferable, so navigates Its device cover glass when too airflight is not allowed broken, improves service life and the cycle of solar cell.Simultaneously P is added in the present invention2O5(P2O5Density be 2.39g/cm3) composition, P2O5The forming region of glass can be widened, is reduced The crystallization possibility of glass, the fusion temperature of glass is reduced, reduce the melting cost of glass.

2) present invention optimizes ceria (CeO2) dosage, while use ceria as space anti-rad, Enhance the intense radiation of the various high energy particles in glass finished-product reply space, electronics, proton etc..Ceria in raw material of the present invention (CeO2) effect one be to play a part of clarification, reduce cover glass defect generation, entirely preparing the mistake of cover glass Other fining agents need not be added in journey, you can realize the clarification to cover glass, saved cost, the energy, more ring Protect, while eliminate the step of being clarified in preparation process, save process, operation is simpler, is more convenient;Second, resist as space The intense radiation of radiation agent, the various high energy particles in reply space, electronics, proton etc., can be according to different type space craft It is required that being adjusted, meet requirement;Third, the glass coloration caused by iron ion can be reduced, cover glass is reduced Transmitance, reduce the generating efficiency of solar cell.

3) the space flight flexible foundation glass of the present invention can be prepared with the charging and glass smelting method of the present invention, do not had to Another increase cost, is beneficial to promotion and implementation, and using feed way stage by stage, first stage charge temperature, will at 700-800 DEG C Well mixed glass batch is added in fusion crucible, and the carbonate in frit is decomposed at 700-800 DEG C, so The volatilization containing raw material in volatile matter can be reduced, ensures the stability of glass composition, forms a mixture state batch;The Mixture state batch is brought rapidly up to 1530-1560 DEG C by the two-stage together with fusion crucible, makes upper strata frit surface Glazing state is produced, glaze layer is formed on upper strata, the volatilization ratio of volatile component can be stopped, so reduce due to other charging sides Method (such as:1. electric kiln is heated into 1330-1400 DEG C, then earthenware will be slowly added to by the good batch of design composition proportion In crucible, stop charging when temperature rises to 1580-1600 DEG C;Or 2. low temperature charging methods, it will design composition proportion in 25 DEG C of normal temperature Good batch is added in crucible, and glass batch and crucible heat up fusing clarification simultaneously) caused by glass composition unstability And in melting process glass lamination, can reduce erosive velocity of the crucible by glass metal, extend pot life, Using the method that feeds stage by stage, crucible can use more than 3 times, be used only once using other general crucibles of charging method, reduce molten Changing the production cost of glass reduces production cost.

4) using unique line cutting technology, two-sided frosted and Double-Sided Polishing Technology, cover glass is enable to realize thinned Change, while do not reduce the yield rate of cover glass, do not increase the production cost of flexible Flouride-resistani acid phesphatase cover glass.Ground compared to one side Sand and single-sided polishing technology, two-sided frosted and Double-Sided Polishing Technology, fast with speed, high yield rate, breakage rate is low, and cost is low, The advantages that grinding and the polishing technology of below 0.05mm cover glass can be realized, according in the existing standard using national military standard The thin slice most thin cover glass for 0.08mm contrasts, and often reduces 0.01mm thickness of glass, the gross weight of cover glass is just Reduce 1/8, and the other application performance of Flouride-resistani acid phesphatase cover glass will not reduce because of being thinned, so satellite, airship and Substantial amounts of launch cost and operating energy consumption proportion can be saved in spacecraft, reduces actual transmission gross weight.And after being thinned Cover glass on the one hand can make its flexibility increase, reduce the breakage of cover glass, increase yield rate, lower production cost;Separately The weight of Flouride-resistani acid phesphatase cover glass is reduced after one side glass thinning, reduces take-off weight during satellite launch, reduces hair Expense is penetrated, is beneficial to the promotion and implementation in aerospace field.

Embodiment

The present invention reduces take-off weight during satellite launch, reduces transmitting expense to reduce the weight of Flouride-resistani acid phesphatase cover glass With, there is provided a kind of light scale of construction flexibility Flouride-resistani acid phesphatase cover glass and preparation method thereof, with reference to specific embodiment to the present invention It is further detailed.

Embodiment 1

A kind of light scale of construction flexibility Flouride-resistani acid phesphatase cover glass, its raw material composition are:By mass percentage, SiO2:53.9%, Al2O3:0.5%, B2O3:13.2%, MgO:8.8%, Na2O:5.1%, Li2O:12.5%, K2O:0.1%, CeO2:4.8%, P2O5:1.1%.Described each raw material is pure using analyzing.

The preparation method of above-mentioned light scale of construction flexibility Flouride-resistani acid phesphatase cover glass is:

A, dispensing:Each raw material is weighed according to the raw material of above-mentioned cover glass composition, is well mixed, it is standby;

B, feed:Take fusion crucible, heat, when fusion crucible temperature be 700-800 DEG C, carry out first stage charging, Feeding quantity is the whole volume of fusion crucible;First stage continues to heat up after feeding, when the temperature of fusion crucible is 1530- At 1560 DEG C, second stage charging is carried out, now because part material has been decomposed to form glass metal, the upper part space of crucible Occur it is vacant, feeding quantity be metal line on crucible residual volume;

C, found:Raw material added by step B is carried out founding 25h at a temperature of 1530-1560 DEG C, it is oxygen to control melting process The property changed atmosphere, by melting sources added by step B into liquid, obtains glass metal;

D, cast molding:The glass metal that step C is obtained is molded by die casting, obtains pouring cast glass;

E, anneal:The cast glass that pours that step D is obtained is sent into progress fine annealing processing in annealing furnace, controls annealing temperature For 500-650 DEG C, annealing rate is 1-2 DEG C/h;

F, cut:Cover glass is cut by line cutting technology, using line cutting technology, can be cut simultaneously every time The cover glass (so that the size of cover plate grows a width of 30 × 40mm as an example) of more than 1000 is cut, the glass cut every time can be ensured The uniformity of the thickness of cover plate, cutting uniformity is increased substantially, reduce the consumption of glass, improve cutting efficiency;

G, grind:The cover glass of step F well cuttings is ground by two-sided frosted technology, reduces grinding number, Being thinned for cover glass can be more realized, improves grinding efficiency, increases yield rate;

H, polish:Cover glasses of the step G by grinding is polished by Double-Sided Polishing Technology, reduces polishing time Number, being thinned for cover glass can be more realized, improves polishing efficiency, increases yield rate;

I, clean:Cover glass after being polished using deionized water cleaning step H, clean 2-5 times, surface clean is done Only;

K, drying:Cover glass after cleaning is put into vacuum drying chamber and is dried, 40-65 DEG C of drying temperature, is done The dry time is 10-25 minutes;

L, low-temperature ion exchanges:Dried cover glass is put into the salt bath for filling potassium nitrate fused salt carry out low temperature from Son exchanges, and exchange temperature is 330-390 DEG C, and swap time is 20-50 minutes.

Embodiment 2

A kind of light scale of construction flexibility Flouride-resistani acid phesphatase cover glass, its raw material composition are:By mass percentage, SiO2:50.8%, Al2O3:0.7%, B2O3:15.9%, MgO:10.2%, Na2O:6%, Li2O:11.1%, K2O:0.5%, CeO2:4.6%, P2O5:0.2%.Described each raw material is pure using analyzing.

The preparation method of above-mentioned light scale of construction flexibility Flouride-resistani acid phesphatase cover glass is:

A, dispensing:Each raw material is weighed according to the raw material of above-mentioned cover glass composition, is well mixed, it is standby;

B, feed:Take fusion crucible, heat, when fusion crucible temperature be 700-800 DEG C, carry out first stage charging, Feeding quantity is the whole volume of fusion crucible;First stage continues to heat up after feeding, when the temperature of fusion crucible is 1530- At 1560 DEG C, second stage charging is carried out, now because part material has been decomposed to form glass metal, the upper part space of crucible Occur it is vacant, feeding quantity be metal line on crucible residual volume;

C, found:Raw material added by step B is carried out founding 25h at a temperature of 1530-1560 DEG C, it is oxygen to control melting process The property changed atmosphere, by melting sources added by step B into liquid, obtains glass metal;

D, cast molding:The glass metal that step C is obtained is molded by die casting, obtains pouring cast glass;

E, anneal:The cast glass that pours that step D is obtained is sent into progress fine annealing processing in annealing furnace, controls annealing temperature For 500-650 DEG C, annealing rate is 1-2 DEG C/h;

F, cut:Cover glass is cut by line cutting technology, using line cutting technology, can be cut simultaneously every time The cover glass (so that the size of cover plate grows a width of 30 × 40mm as an example) of more than 1000 is cut, the glass cut every time can be ensured The uniformity of the thickness of cover plate, cutting uniformity is increased substantially, reduce the consumption of glass, improve cutting efficiency;

G, grind:The cover glass of step F well cuttings is ground by two-sided frosted technology, reduces grinding number, Being thinned for cover glass can be more realized, improves grinding efficiency, increases yield rate;

H, polish:Cover glasses of the step G by grinding is polished by Double-Sided Polishing Technology, reduces polishing time Number, being thinned for cover glass can be more realized, improves polishing efficiency, increases yield rate;

I, clean:Cover glass after being polished using deionized water cleaning step H, clean 2-5 times, surface clean is done Only;

K, drying:Cover glass after cleaning is put into vacuum drying chamber and is dried, 40-65 DEG C of drying temperature, is done The dry time is 10-25 minutes;

L, low-temperature ion exchanges:Dried cover glass is put into the salt bath for filling potassium nitrate fused salt carry out low temperature from Son exchanges, and exchange temperature is 330-390 DEG C, and swap time is 20-50 minutes.

Embodiment 3

A kind of light scale of construction flexibility Flouride-resistani acid phesphatase cover glass, its raw material composition are:By mass percentage, SiO2:53%, Al2O3:0.6%, B2O3:14%, MgO:9.5%, Na2O:5%, Li2O:12.5%, K2O:0.2%, CeO2:4.7%, P2O5: 0.5%.Described each raw material is pure using analyzing.

The preparation method of above-mentioned light scale of construction flexibility Flouride-resistani acid phesphatase cover glass is:

A, dispensing:Each raw material is weighed according to the raw material of above-mentioned cover glass composition, is well mixed, it is standby;

B, feed:Take fusion crucible, heat, when fusion crucible temperature be 700-800 DEG C, carry out first stage charging, Feeding quantity is the whole volume of fusion crucible;First stage continues to heat up after feeding, when the temperature of fusion crucible is 1530- At 1560 DEG C, second stage charging is carried out, now because part material has been decomposed to form glass metal, the upper part space of crucible Occur it is vacant, feeding quantity be metal line on crucible residual volume;

C, found:Raw material added by step B is carried out founding 25h at a temperature of 1530-1560 DEG C, it is oxygen to control melting process The property changed atmosphere, by melting sources added by step B into liquid, obtains glass metal;

D, cast molding:The glass metal that step C is obtained is molded by die casting, obtains pouring cast glass;

E, anneal:The cast glass that pours that step D is obtained is sent into progress fine annealing processing in annealing furnace, controls annealing temperature For 500-650 DEG C, annealing rate is 1-2 DEG C/h;

F, cut:Cover glass is cut by line cutting technology, using line cutting technology, can be cut simultaneously every time The cover glass (so that the size of cover plate grows a width of 30 × 40mm as an example) of more than 1000 is cut, the glass cut every time can be ensured The uniformity of the thickness of cover plate, cutting uniformity is increased substantially, reduce the consumption of glass, improve cutting efficiency;

G, grind:The cover glass of step F well cuttings is ground by two-sided frosted technology, reduces grinding number, Being thinned for cover glass can be more realized, improves grinding efficiency, increases yield rate;

H, polish:Cover glasses of the step G by grinding is polished by Double-Sided Polishing Technology, reduces polishing time Number, being thinned for cover glass can be more realized, improves polishing efficiency, increases yield rate;

I, clean:Cover glass after being polished using deionized water cleaning step H, clean 2-5 times, surface clean is done Only;

K, drying:Cover glass after cleaning is put into vacuum drying chamber and is dried, 40-65 DEG C of drying temperature, is done The dry time is 10-25 minutes;

L, low-temperature ion exchanges:Dried cover glass is put into the salt bath for filling potassium nitrate fused salt carry out low temperature from Son exchanges, and exchange temperature is 330-390 DEG C, and swap time is 20-50 minutes.

Embodiment 4

A kind of light scale of construction flexibility Flouride-resistani acid phesphatase cover glass, its raw material composition are:By mass percentage, SiO2:56.6%, Al2O3:0.4%, B2O3:10%, MgO:9%, Na2O:3.4%, Li2O:14.5%, K2O:0.3%, CeO2:4.9%, P2O5: 0.9%.Described each raw material is pure using analyzing.

The preparation method of above-mentioned light scale of construction flexibility Flouride-resistani acid phesphatase cover glass is:

A, dispensing:Each raw material is weighed according to the raw material of above-mentioned cover glass composition, is well mixed, it is standby;

B, feed:Take fusion crucible, heat, when fusion crucible temperature be 700-800 DEG C, carry out first stage charging, Feeding quantity is the whole volume of fusion crucible;First stage continues to heat up after feeding, when the temperature of fusion crucible is 1530- At 1560 DEG C, second stage charging is carried out, now because part material has been decomposed to form glass metal, the upper part space of crucible Occur it is vacant, feeding quantity be metal line on crucible residual volume;

C, found:Raw material added by step B is carried out founding 25h at a temperature of 1530-1560 DEG C, it is oxygen to control melting process The property changed atmosphere, by melting sources added by step B into liquid, obtains glass metal;

D, cast molding:The glass metal that step C is obtained is molded by die casting, obtains pouring cast glass;

E, anneal:The cast glass that pours that step D is obtained is sent into progress fine annealing processing in annealing furnace, controls annealing temperature For 500-650 DEG C, annealing rate is 1-2 DEG C/h;

F, cut:Cover glass is cut by line cutting technology, using line cutting technology, can be cut simultaneously every time The cover glass (so that the size of cover plate grows a width of 30 × 40mm as an example) of more than 1000 is cut, the glass cut every time can be ensured The uniformity of the thickness of cover plate, cutting uniformity is increased substantially, reduce the consumption of glass, improve cutting efficiency;

G, grind:The cover glass of step F well cuttings is ground by two-sided frosted technology, reduces grinding number, Being thinned for cover glass can be more realized, improves grinding efficiency, increases yield rate;

H, polish:Cover glasses of the step G by grinding is polished by Double-Sided Polishing Technology, reduces polishing time Number, being thinned for cover glass can be more realized, improves polishing efficiency, increases yield rate;

I, clean:Cover glass after being polished using deionized water cleaning step H, clean 2-5 times, surface clean is done Only;

K, drying:Cover glass after cleaning is put into vacuum drying chamber and is dried, 40-65 DEG C of drying temperature, is done The dry time is 10-25 minutes;

L, low-temperature ion exchanges:Dried cover glass is put into the salt bath for filling potassium nitrate fused salt carry out low temperature from Son exchanges, and exchange temperature is 330-390 DEG C, and swap time is 20-50 minutes.

Embodiment 5

A kind of light scale of construction flexibility Flouride-resistani acid phesphatase cover glass, its raw material composition are:By mass percentage, SiO2:59%, Al2O3:0.3%, B2O3:11%, MgO:8%, Na2O:3%, Li2O:12.1%, K2O:0.4%, CeO2:5.0%, P2O5: 1.2%.Described each raw material is pure using analyzing.

The preparation method of above-mentioned light scale of construction flexibility Flouride-resistani acid phesphatase cover glass is:

A, dispensing:Each raw material is weighed according to the raw material of above-mentioned cover glass composition, is well mixed, it is standby;

B, feed:Take fusion crucible, heat, when fusion crucible temperature be 700-800 DEG C, carry out first stage charging, Feeding quantity is the whole volume of fusion crucible;First stage continues to heat up after feeding, when the temperature of fusion crucible is 1530- At 1560 DEG C, second stage charging is carried out, now because part material has been decomposed to form glass metal, the upper part space of crucible Occur it is vacant, feeding quantity be metal line on crucible residual volume;

C, found:Raw material added by step B is carried out founding 25h at a temperature of 1530-1560 DEG C, it is oxygen to control melting process The property changed atmosphere, by melting sources added by step B into liquid, obtains glass metal;

D, cast molding:The glass metal that step C is obtained is molded by die casting, obtains pouring cast glass;

E, anneal:The cast glass that pours that step D is obtained is sent into progress fine annealing processing in annealing furnace, controls annealing temperature For 500-650 DEG C, annealing rate is 1-2 DEG C/h;

F, cut:Cover glass is cut by line cutting technology, using line cutting technology, can be cut simultaneously every time The cover glass (so that the size of cover plate grows a width of 30 × 40mm as an example) of more than 1000 is cut, the glass cut every time can be ensured The uniformity of the thickness of cover plate, cutting uniformity is increased substantially, reduce the consumption of glass, improve cutting efficiency;

G, grind:The cover glass of step F well cuttings is ground by two-sided frosted technology, reduces grinding number, Being thinned for cover glass can be more realized, improves grinding efficiency, increases yield rate;

H, polish:Cover glasses of the step G by grinding is polished by Double-Sided Polishing Technology, reduces polishing time Number, being thinned for cover glass can be more realized, improves polishing efficiency, increases yield rate;

I, clean:Cover glass after being polished using deionized water cleaning step H, clean 2-5 times, surface clean is done Only;

K, drying:Cover glass after cleaning is put into vacuum drying chamber and is dried, 40-65 DEG C of drying temperature, is done The dry time is 10-25 minutes;

L, low-temperature ion exchanges:Dried cover glass is put into the salt bath for filling potassium nitrate fused salt carry out low temperature from Son exchanges, and exchange temperature is 330-390 DEG C, and swap time is 20-50 minutes.

Embodiment 6

A kind of light scale of construction flexibility Flouride-resistani acid phesphatase cover glass, its raw material composition are:By mass percentage, SiO2:62.5%, Al2O3:0.2%, B2O3:10%, MgO:8%, Na2O:3%, Li2O:11.2%, K2O:0.1%, CeO2:4.8%, P2O5: 0.2%.Described each raw material is pure using analyzing.

The preparation method of above-mentioned light scale of construction flexibility Flouride-resistani acid phesphatase cover glass is:

A, dispensing:Each raw material is weighed according to the raw material of above-mentioned cover glass composition, is well mixed, it is standby;

B, feed:Take fusion crucible, heat, when fusion crucible temperature be 700-800 DEG C, carry out first stage charging, Feeding quantity is the whole volume of fusion crucible;First stage continues to heat up after feeding, when the temperature of fusion crucible is 1530- At 1560 DEG C, second stage charging is carried out, now because part material has been decomposed to form glass metal, the upper part space of crucible Occur it is vacant, feeding quantity be metal line on crucible residual volume;

C, found:Raw material added by step B is carried out founding 25h at a temperature of 1530-1560 DEG C, it is oxygen to control melting process The property changed atmosphere, by melting sources added by step B into liquid, obtains glass metal;

D, cast molding:The glass metal that step C is obtained is molded by die casting, obtains pouring cast glass;

E, anneal:The cast glass that pours that step D is obtained is sent into progress fine annealing processing in annealing furnace, controls annealing temperature For 500-650 DEG C, annealing rate is 1-2 DEG C/h;

F, cut:Cover glass is cut by line cutting technology, using line cutting technology, can be cut simultaneously every time The cover glass (so that the size of cover plate grows a width of 30 × 40mm as an example) of more than 1000 is cut, the glass cut every time can be ensured The uniformity of the thickness of cover plate, cutting uniformity is increased substantially, reduce the consumption of glass, improve cutting efficiency;

G, grind:The cover glass of step F well cuttings is ground by two-sided frosted technology, reduces grinding number, Being thinned for cover glass can be more realized, improves grinding efficiency, increases yield rate;

H, polish:Cover glasses of the step G by grinding is polished by Double-Sided Polishing Technology, reduces polishing time Number, being thinned for cover glass can be more realized, improves polishing efficiency, increases yield rate;

I, clean:Cover glass after being polished using deionized water cleaning step H, clean 2-5 times, surface clean is done Only;

K, drying:Cover glass after cleaning is put into vacuum drying chamber and is dried, 40-65 DEG C of drying temperature, is done The dry time is 10-25 minutes;

L, low-temperature ion exchanges:Dried cover glass is put into the salt bath for filling potassium nitrate fused salt carry out low temperature from Son exchanges, and exchange temperature is 330-390 DEG C, and swap time is 20-50 minutes.

The technical parameter of light scale of construction flexibility Flouride-resistani acid phesphatase cover glass prepared by above-described embodiment is shown in Table 1:

Table 1

The spectral characteristic of light scale of construction flexibility Flouride-resistani acid phesphatase cover glass prepared by above-described embodiment is shown in Table 2:

Table 2

Claims (6)

  1. A kind of 1. light scale of construction flexibility Flouride-resistani acid phesphatase cover glass, it is characterised in that:The raw material of described cover glass forms:By matter Measure percentages, SiO2:50.8-62.5%, Al2O3:0.2-0.4%, B2O3:12.3-15.9%, MgO:8-10.6%, Na2O: 6%, Li2O:11.1-16.4%, K2O:0.3-0.5%, CeO2:4.6-5.1%, P2O5:0.2-1.6%;The light scale of construction is flexible Flouride-resistani acid phesphatase cover glass is prepared by following methods, is comprised the following steps:
    A, dispensing:Each raw material is weighed according to the raw material of cover glass composition, is well mixed, it is standby;
    B, feed:The step A raw materials being well mixed are added in fusion crucible, it is standby;
    C, found:Heating fusion crucible makes the melting sources in fusion crucible obtain glass metal into liquid;
    D, cast molding:The glass metal that step C is obtained is molded by die casting, obtains pouring cast glass;
    E, anneal:The cast glass that pours that step D is obtained is sent into annealing furnace and carries out fine annealing processing, controls the annealing temperature to be 500-650 DEG C, annealing rate is 1-2 DEG C/h;
    F, cut:Cover glass is cut by line cutting technology;
    G, grind:The cover glass of step F well cuttings is ground by two-sided frosted technology;
    H, polish:Cover glasses of the step G by grinding is polished by Double-Sided Polishing Technology;
    I, clean:Cover glass after being polished using deionized water cleaning step H, clean 2-5 times, surface clean is clean;
    K, drying:Cover glass after cleaning is put into vacuum drying chamber and is dried, 40-65 DEG C of drying temperature, when drying Between be 10-25 minutes;
    L, low-temperature ion exchanges:Dried cover glass is put into progress low-temperature ion friendship in the salt bath for filling potassium nitrate fused salt Change, exchange temperature is 330-390 DEG C, and swap time is 20-50 minutes;
    Charging described in step B is using feed way stage by stage:When fusion crucible temperature be 700-800 DEG C, carry out the first rank Section charging, feeding quantity are the whole volume of fusion crucible;First stage continues to heat up after feeding, when the temperature of fusion crucible For 1530-1560 DEG C when, carry out second stage charging, now because part material has been decomposed to form glass metal, fusion crucible Upper part space occur it is vacant, feeding quantity be metal line on fusion crucible residual volume.
  2. 2. a kind of light scale of construction flexibility Flouride-resistani acid phesphatase cover glass according to claim 1, it is characterised in that described in step C Heat temperature raising is carried out using Si-Mo rod resistance furnace in melting process, the maximum operation (service) temperature of described Si-Mo rod resistance furnace is 1700 DEG C, rated power 25kw.
  3. 3. a kind of light scale of construction flexibility Flouride-resistani acid phesphatase cover glass according to claim 1, it is characterised in that described in step C It is 20-30h that melting process, which controls melting time, and it is oxidizing atmosphere to control melting process.
  4. 4. a kind of light scale of construction flexibility Flouride-resistani acid phesphatase cover glass according to claim 1, it is characterised in that described in step G Two-sided frosted technology to be ground to the upper and lower surface of cover glass by grinder simultaneously.
  5. 5. a kind of light scale of construction flexibility Flouride-resistani acid phesphatase cover glass according to claim 1, it is characterised in that described in step H Double-Sided Polishing Technology to be polished to the upper and lower surface of cover glass by polishing machine simultaneously.
  6. 6. a kind of light scale of construction flexibility Flouride-resistani acid phesphatase cover glass according to claim 1, it is characterised in that described in step B Fusion crucible be silica crucible.
CN201510289763.7A 2015-06-01 2015-06-01 A kind of light scale of construction flexibility Flouride-resistani acid phesphatase cover glass and preparation method thereof CN104909561B (en)

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CN102249542B (en) * 2010-05-18 2015-08-19 肖特玻璃科技(苏州)有限公司 For the alkali aluminosilicate glass of 3D accurate die pressing and thermal flexure
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