CN104671660B - A kind of ultrawhite super thick float glass and its preparation method - Google Patents
A kind of ultrawhite super thick float glass and its preparation method Download PDFInfo
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Abstract
The present invention relates to glass manufacturing area, specifically related to a kind of ultrawhite super thick float glass and its preparation method, design ultrawhite basic material formula, using edge machine control technology, from first pair of edge machine to last to drawing side, inside component is produced by the speed difference and negative angle of each pair edge machine, speed difference is controlled in 15 50m/h；Runner temperature：1100±1‑1105±1℃；625 ± 5 DEG C of controls of tin bath outlet temperature；The 610t/d of edge machine pull amount 560, plate is wide：4000 4100mm, interior tooth：3580 3860mm, the 165m/h of V master=135；The glass transmitance of preparation well reaches more than 90%, and whiteness is high, and aberration is small, uvioresistant, free from glare.This optical skew angle is more than 55 degree, and the glass plate produced is wide, thickness, interior tooth are relatively stablized.
Description
Technical field
The present invention relates to glass manufacturing area, and in particular to a kind of ultrawhite super thick float glass and its preparation method.
Background technology
With the drastically reduction of non-renewable energy resources on the earth, energy crisis situation is increasingly severe, and the Development of Novel energy is early
Turn into a global problem.Under such historical background, it is wider that solar photovoltaic industry increasingly receives people
General concern.Ultra-clear glasses, with its unique high transmission rate, are greatly improved as a kind of substrate material of solar photovoltaic industry
Photoelectric transformation efficiency, for the development of heliotechnics provides more wide development space.
Ultra-clear glasses were produced by the ultrawhite calendaring line of small tonnage more in the past based on, and with ultra-clear glasses market demand
Increase substantially, the ultra-white float glass production line for also just having expedited the emergence of large-tonnage constantly occurs.
Require very low, belt conveyor system except the requirement of iron safeguard procedures due to producing the raw material iron-holder of " ultra-clear glasses "
Height, glass melting bubble technology for eliminating level is inadequate, and super thick glass is molded a series of skills such as the technical equipments such as annealing cutting
Art problem, brings difficult to manufacturing enterprise.Relevant ultrawhite super thick glass technology data is fewer at present, and relevant report also compares
It is less, such as report on December 8th, prosperous 2012 of Air China three, by the ultrawhite super thick float glass process of the current maximum in the world of their independent researches
Original sheet glass is formally offline, successfully produces the 18m × 3.3m × 12mm especially big original of ultrawhite super thick float glass maximum in the world
Piece, achieves technological innovation achievement.
Current, with national environmental protection energy saving policy do one's utmost promote, particularly China builds solar energy photoelectric curtain wall life
Producing line, numerous and confused selection ultra-clear glasses are applied on photovoltaic plant as solar energy optical-thermal and the substrate of opto-electronic conversion, are immediately lifted
Bigger development space；Simultaneously because ultra-clear glasses iron-holder is low, luminous flux big, with glittering and translucent, high-grade elegant speciality,
It is widely used in building decoration (such as door and window, cut-off, curtain wall) technical field.
But, the difficulty of production ultra-clear glasses is big at present, especially produces ultrawhite of the thickness in more than 15mm big specification
Super thick glass, industrialized production difficulty is bigger！
Therefore, this project technically solves glass " ultrawhite " composition of raw materials, iron removal technology, furnace construction, dispensing first
Fusing, temperature control, while to solve the technical barriers such as the shaping of " super thick glass ", annealing and cutting.
The content of the invention
The invention aims to solve the problem of current ultrawhite super thick glass has difficulty in preparation, there is provided one kind
Ultrawhite super thick float glass and its preparation method.
In order to reach foregoing invention purpose, the present invention uses following technical scheme：
A kind of ultrawhite super thick float glass, the raw materials by weight portion meter of the glass includes following components：Silica sand：70-
80 parts, wherein, content≤100-120ppm of iron, particle diameter is 0.1-0.7mm ratio >=95%, particle diameter<0.1mm ratio ＜
5%；Dolomite：5-10 parts, wherein, content >=30% of calcium oxide, content >=20% of magnesia；Lime stone：10-15 parts,
Wherein, content >=54.5% of calcium oxide, content≤0.105% of iron oxide；Alumina powder：0.1-1 parts, wherein, Al2O3's
Content >=99.5%, Fe2O3Content≤0.01%；Weight alkali：20-25 parts, wherein, Na2CO3Content>99.5%, NaCl's
Content≤0.5%, Na2SO4Content≤0.3%, Fe2O3Content≤0.05%；Saltcake：0.2-1 parts, wherein, Na2SO4's
Content >=99%；Powdered carbon：0.1-0.5 parts, wherein, C content>80%；Cerium oxide：0.04-0.15 parts；Cobalt oxide：0.01-
0.05 part.
Preferably, the raw materials by weight portion meter of the glass includes following components：70 parts of silica sand, 8 parts of dolomite, stone
11 parts of lime stone, 0.2 part of alumina powder, 21 parts of weight alkali, saltcake：0.2 part, 0.2 part of powdered carbon, 0.3 part of cerium oxide, 0.3 part of cobalt oxide,
2 parts of sodium pyroantimonate.
Sodium pyroantimonate can improve the stability and ductility of glass.So as to improve the combination property of glass.
A kind of preparation method of ultrawhite super thick float glass, including pre-treatment, fusing, shaping and post processing, be specially：
（1）Pre-treatment：By raw material and irony equipment blocking, by the way of lining plate, spary macromolecule paint in equipment
Liner plate is set, the pollution that iron rust is brought with iron filings is reduced；Batch turning storehouse, belt conveyer head wheel cover, elevator housing, blanking scraper-trough conveyer,
The key positions such as hopper and weighing bucket are activated, liner plate is set；By powder cabin spraying interior macromolecule paint or lining plank；In belt
Machine, blanking scraper-trough conveyer, bin bottom outlet and region of interest, are respectively provided with the tramp iron separator and metal detection for removing mechanical admixture iron
Device；
（2）Fusing：Fusing hot(test)-spot temperature is maintained at l580-l600 DEG C, and pull amount is down to 580t/d by 680t/d, by runner
Temperature stabilization is controlled in the range of ± 1 DEG C, and fusing melting furnaces used are compared with simple glass, and bottom of pond deepens 100-300mm, and bottom of pond is set
It is equipped with the multi-stage stairs for the convection current of reinforced glass liquid and control glass-melt return-flow；Melting furnaces implement the technology of electricity auxiliary heating, electricity
Auxiliary heating general power 4000kw；
（3）Shaping：Forming temperature selects 880-830 DEG C, and passes through high-temperature water bag cooling control forming temperature；Using 8 pairs
Edge machine, from first pair of edge machine to last to draw side, by the speed difference and negative angle of each pair edge machine produce to
Interior component, speed difference is controlled in 15-50m/h；Runner temperature：1100±1-1105±1℃；625 ± 5 DEG C of controls of tin bath outlet temperature
System；Edge machine pull amount 560-610t/d, plate is wide：4000-4100mm, interior tooth：3580-3860mm, V master=135-165m/h；
（4）Annealing：The glass of shaping is annealed, finished product is obtained.
To reduce as far as possible in Raw material processing, belt feeder course of conveying, irony equipment introduce impurity iron, to it is all with it is former
The place of material contact carries out low iron processing.By raw material and irony equipment blocking, using modes such as lining plate, spary macromolecule paints.
Such as batch turning storehouse, belt conveyer head wheel cover, elevator housing, blanking scraper-trough conveyer, activation hopper and weighing bucket key position, set lining
Plate, reduces the pollution that iron rust is brought with iron filings；And inside powder cabin, then the heterogeneity according to stored powder being needed, spary is high
Molecule paint either serves as a contrast plank.In addition, the position such as elevator hopper, blanking scraper-trough conveyer, as far as possible using high polymer material or stainless
Steel.Abrasion then needs to use wear-resisting steel plate or other wearing composite materials than more serious position.In the feed bin and elephant trunk of raw material
Wall installs a kind of wear resistant polyethylene plate of super high molecular weight（Chinese abbreviation UPE plates）, this is a kind of molecular weight more than 2,000,000
Linear structure polythene material, because molecular weight is high, with extremely strong wearability, pressure-resistant, impact resistance, low temperature resistant, self-lubricating,
The excellent properties such as ant-scaling, several times also more wear-resisting than stainless steel, brass etc..Except iron is mainly setting suspension type tramp iron separator.In belt
The positions such as machine, blanking scraper-trough conveyer, bin bottom outlet, are respectively provided with tramp iron separator and metal detector, for removing mechanical admixture iron.
Compared with common float glass, ultra-white float glass is low because of iron-holder, in melting process of raw material, and fusion temperature is difficult
To control, produce a large amount of bubbles and be difficult to eliminate.Ultra-clear glasses fusing hot(test)-spot temperature should be maintained at l580-l600 DEG C.The position of focus
The position that control should be in 4# ports slightly before is put, to ensure that glass there are enough fusing times and stability, melting furnaces leading portion is maintained at
There is stronger convection current, prevent " running material ".The temperature difference of focus and 1 port should be typically maintained at 1O0 DEG C or so (such as 1480).Prevent
Substantial amounts of Bubble, pull amount is down to 580t/d by 680t/d so that fusion temperature is reduced, effectively the smelter of control glass
Skill system.Proper use of cooling end dilution wind, runner temperature stabilization is controlled in the range of ± 1 DEG C simultaneously.Runner temperature stabilization
The stabilization and glass metal for being related to flow bring the balance of molten tin bath total amount of heat into.
1. glass metal refining quality is good, under runner temperature stabilization, the precondition of glass metal stability of flow, can just make >=
15 mm super thick float glass obtain stabilization.
2. ultrawhite super thick glass tin groove forming temperature selects 880-830 DEG C, passes through high-temperature water bag cooling control forming temperature.
3. the present invention is using 8 pairs of edge machines, from first pair of edge machine to last to drawing side, by each pair edge machine
Speed difference and negative angle produce inside component, speed difference should not be too big, and general control is in the range of 15-50m/h.In glass metal
It is gradually piled to form super thick glass in the presence of self gravitation, tension force, edge machine heap thickness active force and main transmission pull.
4. the trend of glass tape is controlled by rib device during shaping, is allowed to be in molten tin bath centre position, after being
Continuous annealing provides more favourable condition.Keep stable in whole production process.
（1）Ultra-clear glasses annealing cooling technology
Super thick Float Glass Annealing has 2 problems, and first, because glass is the non-conductor of heat, in the cooling of super thick glass
During certainly exist that plate core and the glass pane surface temperature difference are big, the problem of core of glass tape is difficult to cooling.It is in particular in reality
Cooling zone (i.e. heat preservation zone is radiated in the production operation of border：The area of A, B, C tri-) glass tape is cold does not get off, and cold wind forces the F areas of cooling zone,
Because plate core and the glass pane surface temperature difference greatly dare not be cold by force with Wind Volume.As a result cause the permanent stress of glass excessive unfavorable secondary
Process, go out annealing kiln temperature height, after vanning, and produce self-destruction phenomenon.Second, with edge machine method produce super thick glass, completely according to
Thickness is accumulated by edge machine so that angle, speed and the depth increase for being pressed into glass of edge machine；Glass edge outside tooth print is wider,
Glass edge is cooler so that the increase of edge compression；Eventually cause to indulge and fry, split side, clear side difficulty；It is exactly briefly that glass tape is horizontal
The problem of being brought to excessive temperature differentials.
Annealing：Improve the measure of super thick Float Glass Annealing：
1. the key of reduction residual stress is to reduce the cooldown rate G in B areas, and temperature difference △ T and drawing of the G with the import and export of B areas
Draw speed relevant.Because the length in B areas has been fixed, therefore reduction A areas outlet temperature is allowed to enter annealing region in advance
The length in B areas is exactly extended, cooldown rate G is also allowed for and reduces.
2. pull speed is relevant with original plate width and pull amount, in order to reach reduction cooldown rate G purpose.Using wide plate
Method at a slow speed is undoubtedly correctly.Pull amount is reduced, is also to reduce the effective measures of pull speed.
3. it is to improve the best measure of width of glass sheet direction internal stress to reduce transverse temperature difference, strengthens annealing kiln hood
Insulation.Roller spindle nose is particularly important with the insulation and sealing of drawing the sealing at cullet hole, particularly moving roil table both sides.
Annealing early stage suitably opens edge electrical heating, appropriate adjustment F areas edge deep bead, reduces transverse temperature difference.
4. the check apron up and down of A areas import and the check apron in D areas of C areas are the effective means for separating each area of annealing kiln, if separated
It is bad, draught is formd, the annealing to super thick float glass is a deathblow.
5. between moving roil table and annealing kiln, the outlet of D areas, F areas export each use liquefied gas and burn opposite side fire, to change
The relatively low situation of kind super thick float glass edge temperature.
6. it is appropriate to open electrical heating to improve the temperature difference of glass tape both sides in the low-temperature zone both sides of molten tin bath so as to enter and move back
Fiery kiln is reduced with the transverse temperature difference of front glass panel.
The ultrawhite super thick float glass prepared using the technique of the present invention, glass transmitance well reaches more than 90%, whiteness
Height, aberration is small.This optical skew angle is more than 55 degree, and the glass plate produced is wide, thickness, interior tooth are relatively stablized.This
More than 15mm can be reached by inventing the thickness of the ultrawhite super thick float glass prepared, can reach more than 19mm.
Embodiment
Explanation is further described to technical scheme below by specific embodiment.
If without specified otherwise, the raw material employed in embodiments of the invention is raw material commonly used in the art, is implemented
Method employed in example, is the conventional method of this area.
Embodiment 1：
A kind of raw material of ultrawhite super thick float glass, specification is 15mm*3660 ultrawhite super thick glass, the original of the glass
Material is counted by weight（Every part is that 10kg is counted）Including following components：Silica sand：70 parts, wherein, content≤100ppm of iron, particle diameter
For 0.1-0.7mm ratio >=95%, particle diameter<0.1mm ratio ＜ 5%；Dolomite：10 parts, wherein, the content of calcium oxide >=
30%, content >=20% of magnesia；Lime stone：10 parts, wherein, content >=54.5% of calcium oxide, the content of iron oxide≤
0.105%；Alumina powder：1 part, wherein, Al2O3Content >=99.5%, Fe2O3Content≤0.01%,；Weight alkali：20 parts,
Wherein, Na2CO3Content>99.5%, NaCl content≤0.5%, Na2SO4Content≤0.3%, Fe2O3Content≤
0.05%；Saltcake：1 part, wherein, Na2SO4Content >=99%；Powdered carbon：0.1 part, wherein, C content>80%；Cerium oxide：
0.04 part；Cobalt oxide：0.01 part；Sodium pyroantimonate：1 part.
A kind of preparation method of ultrawhite super thick float glass,
（1）Pre-treatment：By raw material and irony equipment blocking, by the way of lining plate, spary macromolecule paint in equipment
Liner plate is set, the pollution that iron rust is brought with iron filings is reduced；Batch turning storehouse, belt conveyer head wheel cover, elevator housing, blanking scraper-trough conveyer,
The key positions such as hopper and weighing bucket are activated, liner plate is set；By powder cabin spraying interior macromolecule paint or lining plank；In belt
Machine, blanking scraper-trough conveyer, bin bottom outlet and region of interest, are respectively provided with the tramp iron separator and metal detection for removing mechanical admixture iron
Device；
（2）Fusing：Fusing hot(test)-spot temperature is maintained at l580-l600 DEG C, and pull amount is down to 580t/d by 680t/d, by runner
Temperature stabilization is controlled in the range of ± 1 DEG C, and fusing melting furnaces used are compared with simple glass, and bottom of pond deepens 100-300mm, and bottom of pond is set
It is equipped with the multi-stage stairs for the convection current of reinforced glass liquid and control glass-melt return-flow；Melting furnaces implement the technology of electricity auxiliary heating, electricity
Auxiliary heating general power 4000kw；
（3）Shaping：Forming temperature selects 880-830 DEG C, and passes through high-temperature water bag cooling control forming temperature；Using 8 pairs
Edge machine, from first pair of edge machine to last to draw side, by the speed difference and negative angle of each pair edge machine produce to
Interior component, speed difference is controlled in 15-50m/h；Runner temperature：1105±1℃；Tin bath outlet temperature：625 ± 5 DEG C of controls；Pull
Measure 550-600t/d, preferably 591t/d, plate glass wide 4090mm, interior tooth 3860mm, V master=165m/h；
（4）Annealing：The glass of shaping is annealed, finished product is obtained, thickness of glass is 14.77,14.79,14.64,
14.65,14.82,14.78,15.12.
15mm*3660 ultrawhite super thick glass is produced, using 8 pairs of edge machines, from first pair of edge machine to last to drawing side
Between, produce the super thick glass of inside component, gradually piled formation by the speed difference and negative angle of each pair edge machine.
Produce as follows compared with the parameters of edge roller of 15mm*3660 ultrawhite super thick after stablizing：
Edge machine 1#2#3#4#5#6#7#8#
Speed 659580504430360290220156
Enter to stretch 18951633155315721680175418121760
Angle -18.3-17-15.7-14.6-13.2-17.8-18.7-19.3
After finished product test, 15mm glass transmitance is good, reaches more than 90.27%, whiteness is high, aberration is small.This time produce
Ultrawhite super thick Glass optical deformation angle is more than 55 degree.The glass plate produced is wide, thickness, interior tooth are relatively stablized,
National standard requirement is fully achieved in 15mm ultrawhite super thick thickness of glass, thickness difference.
Embodiment 2：
A kind of raw material of ultrawhite super thick float glass, specification is 19mm*3360 ultrawhite super thick glass, the original of the glass
Material is counted by weight（Every part is that 10kg is counted）Including following components：Silica sand：80 parts, wherein, content≤120ppm of iron, particle diameter
For 0.1mm ratio >=95%, particle diameter<0.1mm ratio ＜ 5%；Dolomite：10 parts, wherein, the content of calcium oxide >=
30%, content >=20% of magnesia；Lime stone：10 parts, wherein, content >=54.5% of calcium oxide, the content of iron oxide≤
0.105%；Alumina powder：1 part, wherein, Al2O3Content >=99.5%, Fe2O3Content≤0.01%；Weight alkali：20 parts, its
In, Na2CO3Content>99.5%, NaCl content≤0.5%, Na2SO4Content≤0.3%, Fe2O3Content≤
0.05%；Saltcake：1 part, wherein, Na2SO4Content >=99%；Powdered carbon：0.1 part, wherein, C content>80%；Cerium oxide：
0.05 part；Cobalt oxide：0.05 part；Sodium pyroantimonate：2 parts.
A kind of preparation method of ultrawhite super thick float glass,
（1）Pre-treatment：By raw material and irony equipment blocking, by the way of lining plate, spary macromolecule paint in equipment
Liner plate is set, the pollution that iron rust is brought with iron filings is reduced；Batch turning storehouse, belt conveyer head wheel cover, elevator housing, blanking scraper-trough conveyer,
The key positions such as hopper and weighing bucket are activated, liner plate is set；By powder cabin spraying interior macromolecule paint or lining plank；In belt
Machine, blanking scraper-trough conveyer, bin bottom outlet and region of interest, are respectively provided with the tramp iron separator and metal detection for removing mechanical admixture iron
Device；
（2）Fusing：Fusing hot(test)-spot temperature is maintained at l580-l600 DEG C, and pull amount is down to 580t/d by 680t/d, by runner
Temperature stabilization is controlled in the range of ± 1 DEG C, and fusing melting furnaces used are compared with simple glass, and bottom of pond deepens 100-300mm, and bottom of pond is set
It is equipped with the multi-stage stairs for the convection current of reinforced glass liquid and control glass-melt return-flow；Melting furnaces implement the technology of electricity auxiliary heating, electricity
Auxiliary heating general power 4000kw；
（3）Shaping：Forming temperature selects 880-830 DEG C, and passes through high-temperature water bag cooling control forming temperature；Using 8 pairs
Edge machine, from first pair of edge machine to last to draw side, by the speed difference and negative angle of each pair edge machine produce to
Interior component, speed difference is controlled in 15-50m/h；Runner temperature：1100±1℃；625 ± 5 DEG C of controls of tin bath outlet temperature；Draw side
Machine pull 560~610t/d of amount, preferably 595t/d；Plate is wide：4000mm, interior tooth：3580mm, V master=135m/h；
（4）Annealing：The glass of shaping is annealed, finished product, thickness of glass is obtained：18.84,19.13,19.01,
19.05,19.16,18.47.
19mm*3360 ultrawhite super thick glass is produced, using 8 pairs of edge machines, from first pair of edge machine to last to drawing side
Between, produce the super thick glass of inside component, gradually piled formation by the speed difference and negative angle of each pair edge machine.
The parameter of wherein edge machine is as follows：
Edge machine 1#2#3#4#5#6#7#8#
Speed 712618516414333257185115
Enter to stretch 15381310120712021265145816771706
Angle -19.6-19.3-18.7-19.3-18.6-19.6-19.6-19.7
After being detected to finished product, 19mm glass transmitance well reaches more than 90%, and whiteness is high, and aberration is small.Production is obtained
Ultrawhite super thick Glass optical deformation angle more than 55 degree.The glass plate produced is wide, thickness, interior tooth are relatively stablized,
National standard requirement is fully achieved in 19mm ultrawhite super thick thickness of glass, thickness difference.
19mm thickness, thickness difference are slightly worse but be also up to state standards, my company by adjusting high-temperature region electrical heating aperture,
So that glass metal is spread out, coordinate four degree of edge machine of adjustment, reduction thickness is poor, improves company's benefit.
Claims (2)
1. a kind of ultrawhite super thick float glass, it is characterised in that transmitance >=90% of the ultrawhite super thick float glass, thickness
>=15mm, its raw materials by weight portion meter includes following components：Silica sand：70-80 parts, wherein, content≤100-120ppm of iron,
Particle diameter is 0.1-0.7mm ratio >=95%, particle diameter<0.1mm ratio ＜ 5%；Dolomite：5-10 parts, wherein, calcium oxide
Content >=30%, content >=20% of magnesia；Lime stone：10-15 parts, wherein, content >=54.5% of calcium oxide, iron oxide
Content≤0.105%；Alumina powder：0.1-1 parts, wherein, Al2O3Content >=99.5%, Fe2O3Content≤0.01%；
Weight alkali：20-25 parts, wherein, Na2CO3Content>99.5%, NaCl content≤0.5%, Na2SO4Content≤0.3%,
Fe2O3Content≤0.05%；Saltcake：0.2-1 parts, wherein, Na2SO4Content >=99%；Powdered carbon：0.1-0.5 parts, wherein, C
Content>80%；Cerium oxide：0.04-0.15 parts；Cobalt oxide：0.01-0.05 parts；
The ultrawhite super thick float glass via pre-treatment, fusing, shaping and post-processing step after be prepared from, specific steps
For：
（1）Pre-treatment：By raw material and irony equipment blocking, set by the way of lining plate, spary macromolecule paint in equipment
Liner plate, reduces the pollution that iron rust is brought with iron filings；In batch turning storehouse, belt conveyer head wheel cover, elevator housing, blanking scraper-trough conveyer, activation
Hopper sets liner plate with weighing pan position；By powder cabin spraying interior macromolecule paint or lining plank；Belt feeder, blanking scraper-trough conveyer,
Bin bottom is exported and region of interest, is respectively provided with the tramp iron separator and metal detector for removing mechanical admixture iron；
（2）Fusing：Fusing hot(test)-spot temperature is maintained at l580-l600 DEG C, and pull amount is down to 580t/d by 680t/d, by runner temperature
Stability contorting is in the range of ± 1 DEG C, and fusing melting furnaces used are compared with simple glass, and bottom of pond deepens 100-300mm, and bottom of pond is provided with
For the convection current of reinforced glass liquid and the multi-stage stairs of control glass-melt return-flow；Melting furnaces implement the technology of electricity auxiliary heating, electricity auxiliary
Heat general power 4000kw；
（3）Shaping：Forming temperature selects 880-830 DEG C, and passes through high-temperature water bag cooling control forming temperature；Using 8~11 pairs
Edge machine, from first pair of edge machine to last to draw side, by the speed difference and negative angle of each pair edge machine produce to
Interior component, speed difference is controlled in 15-50m/h；Runner temperature：1100±1-1105±1℃；625 ± 5 DEG C of controls of tin bath outlet temperature
System；Edge machine pull amount 560-610t/d, plate is wide：4000-4100mm, interior tooth：3580-3860mm, V master=135m/h；
（4）Annealing：The glass of shaping is annealed, finished product is obtained.
2. a kind of ultrawhite super thick float glass according to claim 1, it is characterised in that the ultrawhite super thick float glass
Raw materials by weight portion meter include following components：70 parts of silica sand, 8 parts of dolomite, 11 parts of lime stone, 0.2 part of alumina powder, weight
21 parts of alkali, saltcake：0.2 part, 0.2 part of powdered carbon, 0.05 part of cerium oxide, 0.3 part of cobalt oxide, 2 parts of sodium pyroantimonate.
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| CN113816591A (en) * | 2021-10-28 | 2021-12-21 | 河南省中联玻璃有限责任公司 | Ultra-white and ultra-thick float glass and preparation method thereof |
| CN114212997A (en) * | 2021-11-30 | 2022-03-22 | 信义玻璃(天津)有限公司 | Preparation method of energy-saving glass |
| CN115180804A (en) * | 2022-08-25 | 2022-10-14 | 咸宁南玻玻璃有限公司 | Control method of float glass ultra-thick plate |
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| CN102295408A (en) * | 2011-06-13 | 2011-12-28 | 福耀玻璃工业集团股份有限公司 | Heat absorbing float glass |
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