CN114230151B - Control method for stripe number in production of ultrathin float glass - Google Patents
Control method for stripe number in production of ultrathin float glass Download PDFInfo
- Publication number
- CN114230151B CN114230151B CN202111495518.3A CN202111495518A CN114230151B CN 114230151 B CN114230151 B CN 114230151B CN 202111495518 A CN202111495518 A CN 202111495518A CN 114230151 B CN114230151 B CN 114230151B
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- glass
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- glass liquid
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- production
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- 238000000034 method Methods 0.000 title claims abstract description 16
- 239000005329 float glass Substances 0.000 title claims abstract description 13
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 13
- 239000011521 glass Substances 0.000 claims abstract description 43
- 239000007788 liquid Substances 0.000 claims abstract description 32
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 claims abstract description 19
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 19
- 239000002994 raw material Substances 0.000 claims abstract description 15
- 238000010790 dilution Methods 0.000 claims abstract description 13
- 239000012895 dilution Substances 0.000 claims abstract description 13
- 230000001276 controlling effect Effects 0.000 claims abstract description 9
- 239000000463 material Substances 0.000 claims abstract description 6
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract description 5
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 5
- 238000010438 heat treatment Methods 0.000 claims abstract description 5
- 238000004364 calculation method Methods 0.000 claims abstract description 3
- 230000001105 regulatory effect Effects 0.000 claims abstract description 3
- 239000006060 molten glass Substances 0.000 claims description 6
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 claims description 6
- 229910010271 silicon carbide Inorganic materials 0.000 claims description 6
- 238000001816 cooling Methods 0.000 claims description 5
- 206010040925 Skin striae Diseases 0.000 claims description 4
- 238000002844 melting Methods 0.000 claims description 2
- 230000008018 melting Effects 0.000 claims description 2
- 238000005498 polishing Methods 0.000 abstract description 2
- 238000003756 stirring Methods 0.000 description 8
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 6
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- 238000006124 Pilkington process Methods 0.000 description 2
- PMZURENOXWZQFD-UHFFFAOYSA-L Sodium Sulfate Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=O PMZURENOXWZQFD-UHFFFAOYSA-L 0.000 description 2
- 238000000137 annealing Methods 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 239000006063 cullet Substances 0.000 description 2
- 239000010459 dolomite Substances 0.000 description 2
- 229910000514 dolomite Inorganic materials 0.000 description 2
- 239000010433 feldspar Substances 0.000 description 2
- 239000010446 mirabilite Substances 0.000 description 2
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 description 2
- 239000004576 sand Substances 0.000 description 2
- 239000000377 silicon dioxide Substances 0.000 description 2
- 229910000029 sodium carbonate Inorganic materials 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000004377 microelectronic Methods 0.000 description 1
- 230000005693 optoelectronics Effects 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B18/00—Shaping glass in contact with the surface of a liquid
- C03B18/02—Forming sheets
- C03B18/14—Changing the surface of the glass ribbon, e.g. roughening
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B18/00—Shaping glass in contact with the surface of a liquid
- C03B18/02—Forming sheets
- C03B18/18—Controlling or regulating the temperature of the float bath; Composition or purification of the float bath
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B7/00—Distributors for the molten glass; Means for taking-off charges of molten glass; Producing the gob, e.g. controlling the gob shape, weight or delivery tact
- C03B7/02—Forehearths, i.e. feeder channels
- C03B7/06—Means for thermal conditioning or controlling the temperature of the glass
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Glass Compositions (AREA)
Abstract
The application provides a control method for the number of stripes in the production of ultra-thin float glass, which is characterized by comprising the following steps: it comprises the following steps: when the raw materials are proportioned, the content of aluminum in the raw materials is regulated to 3% of the weight of the raw materials by calculation, then the materials are sent into a kiln to be melted into glass liquid, then the glass liquid is sequentially sent into a runner, the water drum lifting device is used for controlling the depth of water drum inserted into the glass liquid to be 350mm-450mm and the dilution air quantity to be 350 m/h-600 m/h, the glass liquid temperature is controlled to be 1135-1145 ℃, and the tin liquid temperature is controlled to be 920-950 ℃ by a heating device in a tin bath. The application has convenient operation, and achieves the aim of flattening and polishing to the optimal state by controlling the quantity of stripes through temperature adjustment.
Description
Technical field:
the application relates to the technical field of glass production, in particular to a method for controlling the number of stripes in the process of producing ultra-thin float glass.
The background technology is as follows:
with the development of the current electronic information technology, the ultrathin electronic glass is widely applied to the electronic information field, the demand of the market for the ultrathin electronic glass is increasing, and the quality requirement for the electronic glass is higher. The electronic glass generally refers to ultra-thin float glass with the thickness of 0.1-2 mm, and refers to a high-technology product which can be applied to the fields of electronics, microelectronics and optoelectronics, and is mainly used for manufacturing integrated circuits and glass materials with photoelectric, thermoelectric, acousto-optic, magneto-optic and other functional components. The existing processes for producing the electronic glass are two, namely a float process and an overflow process.
The existing float process is that molten glass flows into a cooling part from a tank furnace to be cooled to a proper temperature, continuously flows into the cooling part through a flow channel and floats on the surface of molten tin with high relative density, and under the action of gravity, surface tension and edge rollers, the molten glass spreads and spreads on the molten tin to form upper and lower surface leveling, hardening and cooling, and then is led to a transition roller table. And (3) rotating rollers of the roller table, pulling the glass ribbon out of the tin bath and entering an annealing kiln, and annealing, cutting and cutting to obtain the float glass product.
The overflow process includes feeding molten glass into overflow channel from feeding unit, flowing downwards along the surface of long overflow channel, forming one wedge-shaped body in the lower part of overflow channel, and forming one glass belt at the bottom edge of wedge-shaped body.
And the streak and waviness on the glass directly affect the quality of the electronic glass. The stripes are more and finer, and the rib rainbow is easy to be formed after the standard exceeding processing of the waviness value; in addition, the stripes are too wide and sparse, the waviness value is not out of standard, but the water waves are easy to form after the large-value fluctuation processing, because the waviness measurement is slower, downstream customers commonly adopt a method for controlling the stripes to control the waviness, the quality of the stripes is directly related to the quality of the waviness, the weaker the contrast of the brightness of the stripes is, and the spareribs rainbow and the water waves are difficult to form after the corresponding processing of moderate numbers of the stripes.
The application comprises the following steps:
the application aims to overcome the defects in the prior art, control the number of transverse stripes in glass production, and provide a control method for the number of stripes in ultra-thin float glass production.
The application provides the following technical scheme:
a control method for the number of stripes in the production of ultra-thin float glass is characterized in that: it comprises the following steps: when the raw materials are proportioned, the content of aluminum in the raw materials is regulated to 3% of the weight of the raw materials by calculation, then the materials are sent into a kiln to be melted into glass liquid, then the glass liquid is sent into a runner, the depth of a water bag inserted into the glass liquid is controlled to be 350-450 mm by a water bag lifting device, the dilution air quantity entering through an air inlet hole is controlled to be 350 m/h-600 m/h by a dilution air control valve, the glass liquid temperature is controlled to be 1135-1145 ℃, and the tin liquid temperature is controlled to be 920-950 ℃ by a heating device in a tin bath.
On the basis of the technical scheme, the following further technical scheme is also available:
a thermocouple is inserted at the neck of the runner for detecting the temperature of glass liquid, and the water drum is also arranged at the neck of the runner.
The opening degree of the dilution air control valve is 40% -60%.
The heating device in the tin bath is a group of silicon carbide rods distributed in the tin bath.
The air inlet hole is positioned on the side wall of the cooling part behind the neck of the melting furnace and is a certain distance away from the glass liquid.
The viscosity of molten glass in the tin bath is controlled to be 10 3 To 10 4 Pa .s。
The application has the advantages that:
the application has convenient operation, and achieves the aim of flattening and polishing to the optimal state by controlling the quantity of stripes through temperature adjustment.
Description of the drawings:
FIG. 1 is a schematic view of the apparatus in the practice of the present application.
The specific embodiment is as follows:
as shown in fig. 1, example 1:
a method for controlling the number of striae in the production of ultra-thin float glass comprising the steps of: when the raw materials of silica sand, sodium carbonate, feldspar, dolomite, aluminum oxide, mirabilite, carbon powder and cullet are proportioned, the aluminum content in the raw materials is firstly calculated and adjusted to be 3 percent of the total weight of the raw materials.
And then the materials are sent into a kiln to be melted into glass liquid 1, then enter a glass runner 2, and the depth of the water drum 4 inserted into the glass liquid 1 is controlled to be 370mm by a water drum lifting device 8 arranged at the neck 3. The neck 3 at one side of the water drum 4 is also provided with a stirring device for vertically stirring the glass liquid.
The dilution air quantity released by the air inlet 5 above the glass liquid level is controlled to 600 m/h by a dilution air control valve (electromagnetic valve), the opening degree of the dilution air control valve is 55%, the temperature of a runner is detected to be 1148 ℃ by a thermocouple 7, a group of silicon carbide rods 9 are uniformly distributed on the glass liquid at the front part of a tin bath 6, the temperature of the tin liquid 8 is controlled to 932 ℃ by the silicon carbide rods 9, and the viscosity of the glass liquid is controlled to 10 under the traction action of a edge drawing main transmission and an edge drawing machine 3 Pa.s. The obtained glass has fine and dense stripes, obvious contrast between light and shade, and the number of single plate stripes is 310-340.
The water drum lifting device and the stirring device are of a lifting structure of an electric winch or a lifting structure of an air cylinder or a lifting structure of a manual gear rack in the prior art, and the structures of the water drum lifting device and the stirring device are not described in detail herein.
As shown in fig. 1, example 2:
a method for controlling the number of striae in the production of ultra-thin float glass comprising the steps of: when the raw materials of silica sand, sodium carbonate, feldspar, dolomite, aluminum oxide, mirabilite, carbon powder and cullet are proportioned, the aluminum content in the raw materials is firstly calculated and adjusted to be 3 percent of the total weight of the raw materials.
And then the materials are sent into a kiln to be melted into glass liquid 1, then enter a glass runner 2, and the depth of the water drum 4 inserted into the glass liquid 1 is controlled to 420mm by a water drum lifting device 8 arranged at the neck 3. The neck 3 at one side of the water drum 4 is also provided with a stirring device for vertically stirring the glass liquid.
The dilution air quantity released by an air inlet hole 5 above the glass liquid level is controlled to be 350 m/h through a dilution air control valve (electromagnetic valve), the opening degree of the dilution air control valve is 48%, the temperature of a runner is detected to be 1139 ℃ through a thermocouple 7, a group of silicon carbide rods 9 are uniformly distributed on the glass liquid at the front part in a tin bath 6, the temperature of the tin liquid 8 is controlled to be 926 ℃ through the silicon carbide rods 9, and the viscosity of the glass liquid is controlled to be 10 under the traction action of a edge drawing main transmission and an edge drawing machine 4 Pa.s. The obtained glass has fine and dense stripes, obvious contrast between light and shade, and the number of single plate stripes is 240.
The water drum lifting device and the stirring device are of a lifting structure of an electric winch or a lifting structure of an air cylinder or a lifting structure of a manual gear rack in the prior art, and the structures of the water drum lifting device and the stirring device are not described in detail herein.
The arrows in the figure indicate the flow of molten glass.
Claims (3)
1. A control method for the number of stripes in the production of ultra-thin float glass is characterized in that: it comprises the following steps: when the raw materials are proportioned, the content of aluminum in the raw materials is regulated to 3% of the weight of the raw materials by calculation, then the materials are sent into a kiln to be melted into glass liquid, then the glass liquid is sent into a runner, the depth of a water bag inserted into the glass liquid is controlled to be 350-450 mm by a water bag lifting device, the dilution air quantity entering through an air inlet hole is controlled to be 350 m/h-600 m/h by a dilution air control valve, the glass liquid temperature is controlled to be 1135-1145 ℃, and the tin liquid temperature is controlled to be 920-950 ℃ by a heating device in a tin bath; the heating device in the tin bath is a group of silicon carbide rods distributed in the tin bath; the air inlet hole is positioned on the side wall of the cooling part behind the neck of the melting furnace and is a certain distance away from the glass liquid.
2. A method of controlling the number of striae in the production of ultra-thin float glass as claimed in claim 1, wherein: the opening degree of the dilution air control valve is 40% -60%.
3. A method of controlling the number of striae in the production of ultra-thin float glass as claimed in claim 1, wherein: the viscosity of molten glass in the tin bath is controlled to be 10 3 To 10 4 Pa .s。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111495518.3A CN114230151B (en) | 2021-12-09 | 2021-12-09 | Control method for stripe number in production of ultrathin float glass |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111495518.3A CN114230151B (en) | 2021-12-09 | 2021-12-09 | Control method for stripe number in production of ultrathin float glass |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114230151A CN114230151A (en) | 2022-03-25 |
| CN114230151B true CN114230151B (en) | 2023-10-27 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111495518.3A Active CN114230151B (en) | 2021-12-09 | 2021-12-09 | Control method for stripe number in production of ultrathin float glass |
Country Status (1)
| Country | Link |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2015081603A1 (en) * | 2013-12-06 | 2015-06-11 | 杨德宁 | Float plate glass produced by process for forming ultra-thin glass |
| CN105859110A (en) * | 2016-05-12 | 2016-08-17 | 武汉理工大学 | Method of improving and stabilizing quality of glass and lip brick for float glass production |
| CN205907177U (en) * | 2016-06-28 | 2017-01-25 | 信义玻璃（营口）有限公司 | Glass apparatus for producing |
| CN107601865A (en) * | 2017-09-25 | 2018-01-19 | 安徽华光光电材料科技集团有限公司 | A kind of production method of high temp glass |
| CN110903018A (en) * | 2019-12-19 | 2020-03-24 | 湖南巨强再生资源科技发展有限公司 | Method for producing 2mm float ultra-thin glass by adopting large horseshoe flame kiln |
| CN210683582U (en) * | 2019-10-22 | 2020-06-05 | 四川康宇电子基板科技有限公司 | Molten tin bath bottom brick forming structure for glass forming |
-
2021
- 2021-12-09 CN CN202111495518.3A patent/CN114230151B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2015081603A1 (en) * | 2013-12-06 | 2015-06-11 | 杨德宁 | Float plate glass produced by process for forming ultra-thin glass |
| CN105859110A (en) * | 2016-05-12 | 2016-08-17 | 武汉理工大学 | Method of improving and stabilizing quality of glass and lip brick for float glass production |
| CN205907177U (en) * | 2016-06-28 | 2017-01-25 | 信义玻璃（营口）有限公司 | Glass apparatus for producing |
| CN107601865A (en) * | 2017-09-25 | 2018-01-19 | 安徽华光光电材料科技集团有限公司 | A kind of production method of high temp glass |
| CN210683582U (en) * | 2019-10-22 | 2020-06-05 | 四川康宇电子基板科技有限公司 | Molten tin bath bottom brick forming structure for glass forming |
| CN110903018A (en) * | 2019-12-19 | 2020-03-24 | 湖南巨强再生资源科技发展有限公司 | Method for producing 2mm float ultra-thin glass by adopting large horseshoe flame kiln |
Non-Patent Citations (1)
| Title |
|---|
| 翟泉等.浮法玻璃的成形质量与稳定.玻璃.1996,(第02期),全文. * |
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| CN114230151A (en) | 2022-03-25 |
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