CN115367999A - Intermittent optical glass production method and device - Google Patents
Intermittent optical glass production method and device Download PDFInfo
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- CN115367999A CN115367999A CN202211150451.4A CN202211150451A CN115367999A CN 115367999 A CN115367999 A CN 115367999A CN 202211150451 A CN202211150451 A CN 202211150451A CN 115367999 A CN115367999 A CN 115367999A
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- 238000004519 manufacturing process Methods 0.000 title claims abstract description 48
- 239000005304 optical glass Substances 0.000 title claims abstract description 23
- 239000011521 glass Substances 0.000 claims abstract description 42
- 238000005352 clarification Methods 0.000 claims abstract description 26
- 238000007599 discharging Methods 0.000 claims abstract description 22
- 238000000034 method Methods 0.000 claims abstract description 16
- 239000007788 liquid Substances 0.000 claims abstract description 13
- 238000001816 cooling Methods 0.000 claims abstract description 5
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 claims description 50
- 230000005587 bubbling Effects 0.000 claims description 28
- 238000002844 melting Methods 0.000 claims description 25
- 230000008018 melting Effects 0.000 claims description 25
- 229910052697 platinum Inorganic materials 0.000 claims description 25
- 238000010438 heat treatment Methods 0.000 claims description 14
- 229910006404 SnO 2 Inorganic materials 0.000 claims description 6
- 239000000203 mixture Substances 0.000 claims description 6
- 239000002994 raw material Substances 0.000 claims description 5
- 238000009472 formulation Methods 0.000 claims description 3
- 238000007670 refining Methods 0.000 claims 1
- 238000010079 rubber tapping Methods 0.000 claims 1
- 238000003723 Smelting Methods 0.000 abstract description 4
- 239000011449 brick Substances 0.000 description 15
- 239000006060 molten glass Substances 0.000 description 11
- 238000002485 combustion reaction Methods 0.000 description 8
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 4
- 239000011819 refractory material Substances 0.000 description 4
- 238000005265 energy consumption Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 238000000465 moulding Methods 0.000 description 3
- 229910052726 zirconium Inorganic materials 0.000 description 3
- 229910052593 corundum Inorganic materials 0.000 description 2
- 239000010431 corundum Substances 0.000 description 2
- 239000003345 natural gas Substances 0.000 description 2
- 229910000629 Rh alloy Inorganic materials 0.000 description 1
- QCWXUUIWCKQGHC-UHFFFAOYSA-N Zirconium Chemical compound [Zr] QCWXUUIWCKQGHC-UHFFFAOYSA-N 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000004913 activation Effects 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 238000010923 batch production Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000010924 continuous production Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000010309 melting process Methods 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 230000007935 neutral effect Effects 0.000 description 1
- 229910000510 noble metal Inorganic materials 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- PXXKQOPKNFECSZ-UHFFFAOYSA-N platinum rhodium Chemical compound [Rh].[Pt] PXXKQOPKNFECSZ-UHFFFAOYSA-N 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
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- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B5/00—Melting in furnaces; Furnaces so far as specially adapted for glass manufacture
- C03B5/16—Special features of the melting process; Auxiliary means specially adapted for glass-melting furnaces
- C03B5/225—Refining
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B5/00—Melting in furnaces; Furnaces so far as specially adapted for glass manufacture
- C03B5/02—Melting in furnaces; Furnaces so far as specially adapted for glass manufacture in electric furnaces, e.g. by dielectric heating
- C03B5/027—Melting in furnaces; Furnaces so far as specially adapted for glass manufacture in electric furnaces, e.g. by dielectric heating by passing an electric current between electrodes immersed in the glass bath, i.e. by direct resistance heating
- C03B5/03—Tank furnaces
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B5/00—Melting in furnaces; Furnaces so far as specially adapted for glass manufacture
- C03B5/16—Special features of the melting process; Auxiliary means specially adapted for glass-melting furnaces
- C03B5/235—Heating the glass
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B5/00—Melting in furnaces; Furnaces so far as specially adapted for glass manufacture
- C03B5/16—Special features of the melting process; Auxiliary means specially adapted for glass-melting furnaces
- C03B5/26—Outlets, e.g. drains, siphons; Overflows, e.g. for supplying the float tank, tweels
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Glass Melting And Manufacturing (AREA)
Abstract
The invention provides a production method and a device of gap type optical glass. The production method of the interstitial optical glass comprises the following steps: 1) Feeding; 2) Raising the temperature of the glass liquid to a clarification temperature, and then cooling to a standing temperature to finish the clarification of bubbles; 3) Discharging and forming; the clarification temperature is the temperature corresponding to the viscosity of 30-150dpas selected according to the viscosity temperature data tested by the glass formula; the standing temperature is the temperature corresponding to the viscosity of 400-800 dpas; the discharging temperature is the temperature corresponding to the viscosity of 800-1500 dpas. The production process method combines the characteristics of a single-crucible production process and a continuous smelting production process, and the produced glass product has the advantages of good quality, good bubble quality, good product uniformity and consistency and longer service life of a production device.
Description
Technical Field
The invention relates to a method for producing optical glass, in particular to a method and a device for producing clearance type optical glass.
Background
The production of the optical glass can be generally divided into single-crucible gap type production and continuous smelting method production, the single-crucible production is limited by the crucible manufacturing specification or the used crucible material, the productivity is low, the production investment is low, the product quality is unstable, the service life of the production line is greatly influenced by the crucible quality, and the effective service life is short; in addition, because the radiation type heating melting production mode is adopted, the heat efficiency is low, and the production energy consumption cost of each kilogram of glass is higher. The continuous smelting production mode is suitable for large-scale continuous production, the production line has high capacity, stable product quality and long service life, the production energy consumption cost of each kilogram of glass is low, but the production line needs a large amount of utensils made of noble metals (such as platinum, platinum-rhodium alloy and the like) and a complex control system, and the production investment is large.
Disclosure of Invention
The invention aims to solve the technical problem of providing a production method and a device of clearance type optical glass.
The technical scheme adopted by the invention for solving the technical problem is as follows: the production method of the interstitial optical glass comprises the following steps: 1) Feeding; 2) Raising the temperature of the glass liquid to a clarification temperature, and then cooling to a standing temperature to finish the clarification of bubbles; 3) Discharging and forming; wherein,
step 2) the clarification temperature is that the temperature corresponding to the viscosity of 30-150dpas is selected as the clarification temperature according to the viscosity temperature data tested by the glass formula; the standing temperature is the temperature corresponding to the viscosity of 400-800dpas selected according to the viscosity temperature data tested by the glass formula;
and 3) selecting the temperature corresponding to the viscosity of 800-1500dpas as the discharging temperature according to the viscosity temperature data tested by the glass formula.
Further, the input amount of the feeding in the step 1) is that the melting rate of the area of the kiln is calculated according to the composition of the glass formula, the melting amount of each day is obtained by multiplying the melting area of the kiln, and the input amount of the raw materials of each hour is obtained by dividing the melting amount of each day by 24 hours.
Further, the feeding temperature in the step 1) is that the temperature corresponding to the viscosity of 100-300dpas is selected as the feeding temperature according to the viscosity temperature data of the glass formula test, and the temperature corresponding to the viscosity of 200-250dpas is preferably selected as the feeding temperature.
Further, the clarifying temperature in the step 2) is that the temperature corresponding to the viscosity of 50-100dpas is selected as the clarifying temperature; and 2) selecting the temperature corresponding to the viscosity of 600-800dpas as the standing temperature.
Furthermore, the bubbling system is started in the feeding stage, and is closed in the clarification stage and the discharging and forming stage.
The intermittent optical glass production device comprises a kiln, wherein a flue port is formed in the top of the kiln, and a burning gun is arranged at the upper part of the kiln; a charging opening is formed in the side wall right in front of the upper part of the kiln; an electrode is arranged at the lower part of the kiln; a bubbling system is arranged on the bottom of the furnace; and a platinum discharging pipe is connected to the side wall of the lower part of the kiln.
Furthermore, thermocouple devices are arranged on the upper and lower regions of the kiln and the platinum discharging pipe.
Furthermore, the horizontal section of the side wall of the kiln is hexagonal or octagonal, when the side wall of the kiln is hexagonal, two groups of electrodes are preferably selected for each layer, the number of layers of the electrodes is 1-3, each layer of the electrodes is independently powered, and the electrodes are preferably high-temperature SnO 2 Electrode or platinum electrode, snO is selected 2 Two groups of output power supplies of a Scott transformer are adopted when the electrodes are selected, and two paths of output power supplies of a medium-frequency power supply are adopted when the platinum electrodes are selected; when the shape of the octagon is adopted, three groups of electrodes are preferably selected for each layer, the number of the electrodes is 1-3, each layer of the electrodes is independently powered, and the electrodes are preferably high-temperature SnO 2 Electrode or platinum electrode, snO is selected 2 When the electrodes are used, a three-phase transformer star-shaped wiring mode is adopted for power supply, and when the platinum electrodes are selected, a medium-frequency power supply three-way output is adopted for power supply.
Furthermore, the electrode at the lower part of the kiln is a main heating system in the glass melting and clarifying stages, and the burning gun at the upper part of the kiln is an auxiliary heating system for adjusting the melting atmosphere.
The invention has the beneficial effects that: the production process method combines the characteristics of a single-crucible production process and a continuous smelting production process, has good process adaptability, good repeatability and stable product quality, and can well meet the production requirements of small batches of optical glass products; in the production process, the device mainly adopts an electric boosting mode of electrode heating, and the upper combustion system is mainly used for controlling and assisting the melting atmosphere, so that the energy consumption cost of the product is low, the device is stable in operation, and the process repeatability is good; the invention is suitable for medium and small batch production of large-part optical glass brands, and the produced glass product has good quality, good bubble quality, good product uniformity and consistency and longer service life of a production device.
Drawings
FIG. 1 is a sectional view of a front view of the production apparatus of the present invention.
FIG. 2 is a top view of one configuration of the production apparatus of the present invention.
FIG. 3 is a top view of another configuration of the production apparatus of the present invention.
Detailed Description
As shown in fig. 1-3, the intermittent optical glass production device of the present invention comprises a kiln 1 composed of refractory bricks, wherein a flue port 2 is arranged at the top of the kiln 1, and a burning gun 3 is arranged at the upper part of the kiln 1 for burning and heating the interior of the kiln 1; a charging hole 4 is arranged on the side wall right in front of the upper part of the kiln 1 and used for feeding materials into the kiln 1; an electrode 5 is arranged at the lower part of the kiln 1 and used for electrifying and heating the molten glass, the bottom of the kiln 1 is a pool bottom 6, and a bubbling system is arranged on the pool bottom 6 and used for bubbling the molten glass in the kiln 1; a platinum discharging pipe 8 is further connected to the side wall of the lower part of the kiln 1, and discharging and forming operation is carried out through the platinum discharging pipe 8.
The burning gun 3 can adopt natural gas air combustion supporting or total oxygen combustion supporting, and preferably adopts natural gas air combustion supporting; the flue port 2 is designed according to the combustion quantity; the bubbling system can adopt 4 bubbling tubes 7, the vertical distance between the central axis of each bubbling tube 7 and the nearest side wall of the kiln 1 is 200-400mm, the bubbling tubes 7 carry out bubbling or bubble closing operation according to the production process requirements, and the bubbling tubes 7 are preferably platinum bubbling tubes or corundum bubbling tubes; the platinum discharging pipe 8 adopts a direct heating mode, the outflow of glass liquid and the size of the discharged material amount are controlled by increasing and decreasing the temperature, the height of an inlet of the platinum discharging pipe 8 is 100-250mm away from the bottom 6 of the tank, and the inlet is positioned on the central line of the rear wall; thermocouple devices are arranged in the upper portion and the lower portion of the kiln 1 and the platinum discharging pipe 8 and are used for monitoring the temperature of a combustion space in the upper portion of the kiln 1, the temperature of glass liquid in the lower portion of the kiln 1 and the temperature of the platinum discharging pipe 8.
The horizontal section of the side wall of the kiln 1 is in a hexagonal or octagonal structure, when the side wall is in a hexagonal shape, two groups of electrodes 5 are preferably arranged on each layer, the number of the layers of the electrodes 5 is 1-3, each layer of the electrodes 5 is independently powered, and the number of the layers of the electrodes 5 shown in the figures 1-2 is 2. The electrode 5 is preferably high-temperature type SnO 2 Electrode or platinum electrode, snO is selected 2 Two sets of outputs of a Scott transformer are adopted for supplying power when the electrodes are used, and two paths of outputs of a medium-frequency power supply are adopted for supplying power when the platinum electrodes are selected. When the shape is octagonal, as shown in fig. 3, three groups of electrodes 5 are preferably arranged in each layer, the number of the electrodes 5 is 1-3, and each layer of the electrodes 5 is independently supplied with power. The electrode 5 is preferably high-temperature SnO 2 Electrode or platinum electrode, snO is selected 2 When the electrodes are used, a three-phase transformer star-shaped wiring mode is adopted for power supply, and when the platinum electrodes are selected, a medium-frequency power supply three-way output is adopted for power supply.
The lower part of the kiln 1 is contacted with the refractory material brick body pool wall of molten glass, preferably an fused corundum brick AZS41# brick or a high-zirconium brick, wherein the high-zirconium brick has a zirconium content of more than 89 percent, such as a 1195 brick, and the height of the pool wall is 500-900mm. The bottom 6 of the furnace 1 is of a refractory material composite structure and is composed of a first layer of refractory material bricks, a second layer of AZS33# bricks or AZS41# bricks, a third layer of anti-leakage ramming layer and a fourth layer of insulating bricks, wherein the first layer of refractory material bricks, the second layer of AZS33# bricks or AZS41# bricks are the same as the wall of the furnace 1, and the fourth layer of insulating bricks is shown in figure 1.
The main energy required by the device in the melting and clarification stages of the glass is from the electrode 5 at the lower part of the kiln 1, and the characteristics of stable and controlled heating, high heating efficiency, high speed and small external influence when the electrode heats the glass are fully utilized. The burning gun 3 used in the space above the kiln 1 is only an auxiliary heating system, mainly plays a role in adjusting the melting atmosphere and meets the requirements of different formula melting production atmospheres.
During production, 1) feeding a glass liquid level line 9 meeting the process requirements into the kiln 1 through the feeding port 4, and adjusting the combustion space temperature and the combustion atmosphere of the burning gun 3 according to the formula characteristics of the type of the produced product during feeding, such as oxidizing atmosphere, neutral atmosphere and reducing atmosphere; 2) After the feeding is finished, the temperature of the glass liquid is increased to the clarification temperature by increasing the power of the electrode 5, and then the temperature is reduced to the standing temperature, so that the clarification of bubbles generated when the glass is melted is finished; 3) And after clarification is finished, reducing the power of the electrode 5 to reduce the temperature of the glass to the temperature during discharge molding, adjusting the temperature of a platinum discharge pipe 8 to start discharge molding, and stopping discharge molding when the liquid level line 9 of the glass is reduced to the height required by the process. And after the discharging and forming are finished, feeding is restarted, and the next round of production is carried out.
In the step 1), the melting rate of the area of the kiln is calculated according to the composition condition of the glass formula, the melting rate is multiplied by the melting area of the kiln to obtain the daily melting amount, and the daily melting amount is divided by 24 hours to obtain the hourly raw material input amount;
the definition of viscosity refers to the internal friction force f generated when two parallel liquid layers with the area S move at a certain velocity gradient dv/dx. The unit is gram/centimeter-second, namely:
f＝ηs·dv/dx
according to the theory of Friedel's forces, for non-associative liquids, the viscosity is exponential with temperature and logarithmically as follows:
㏒η＝a+Eη/KT
wherein E is the activation energy of viscosity, and according to the relational expression, the glass with different components can obtain specific glass viscosity temperature data.
According to the viscosity temperature data of the glass formula to be produced, selecting the temperature corresponding to the viscosity of 100-300dpas as the feeding temperature, and preferably selecting the temperature corresponding to the viscosity of 200-250dpas as the feeding temperature. And in the feeding stage, a bubbling system is started, and the glass liquid is bubbled through the bubbling system.
In the step 2), according to the viscosity temperature data of the glass formulation test, the temperature corresponding to the viscosity of 30-150dpas is selected as the clarification temperature, and the temperature corresponding to the viscosity of 50-100dpas is preferably selected as the clarification temperature. By this stage, the large bubbles in the molten glass are sufficiently clarified. The fining stage turns off the bubbling system, which does not bubble into the molten glass.
According to the viscosity temperature data of the formula test, the temperature corresponding to the viscosity of 400-800dpas is selected as the standing temperature, and the temperature corresponding to the viscosity of 600-800dpas is preferably the standing temperature. Through this stage, the small bubbles in the molten glass are sufficiently absorbed. And in the cooling and standing stage, the bubbling system is closed, and the bubbling system does not bubble into the molten glass.
And in the step 3), according to the viscosity temperature data tested by the glass formula, selecting the temperature corresponding to the viscosity of 800-1500dpas as the discharging temperature, and quickly discharging and forming. And in the discharging and forming stage, the bubbling system is closed, and the bubbling system does not bubble into the glass liquid.
The bubbling system of the device is started in the whole feeding period and in the stage of heating the molten glass to the clarifying temperature after the feeding is finished, and the bubbling system can improve the melting speed of the raw materials in the melting process in the feeding stage and promote the molten glass to be fully and uniformly mixed; the bubbling system is continuously started at the stage of heating to the clarification temperature after the feeding is finished, so that the molten glass at the bottom of the kiln is driven to quickly reach the clarification temperature, and the quick clarification of bubbles is realized; the bubbling system is closed in the clarification process period, and standing clarification of glass bubbles is realized at the clarification temperature; the bubbling system is closed in the cooling and standing process period, and the absorption of the micro bubbles in the glass at the standing temperature is realized by utilizing the solubility characteristic of the bubbles in the glass, so that the clarification quality of the glass liquid is further improved. The bubbling system can realize the full mixing and uniformity of the glass in the kiln at the melting and clarification stages, and improve the uniformity and consistency of the molten glass.
Claims (10)
1. The production process method of the clearance type optical glass is characterized by comprising the following steps: 1) Feeding; 2) Raising the temperature of the glass liquid to a clarification temperature, and then cooling to a standing temperature to finish the clarification of bubbles; 3) Discharging and forming; wherein,
step 2) the clarification temperature is that the temperature corresponding to the viscosity of 30-150dpas is selected as the clarification temperature according to the viscosity temperature data tested by the glass formula; the standing temperature is that the temperature corresponding to the viscosity of 400-800dpas is selected as the standing temperature according to the viscosity temperature data tested by the glass formula;
and 3) selecting the temperature corresponding to the viscosity of 800-1500dpas as the discharging temperature according to the viscosity temperature data tested by the glass formula.
2. The process for producing interstitial optical glass as claimed in claim 1, wherein the input amount of the raw materials in step 1) is calculated according to the composition of the glass formulation, the melting rate of the area of the furnace is calculated, the melting rate is multiplied by the melting area of the furnace to obtain the daily melting amount, and the daily melting amount is divided by 24 hours to obtain the hourly input amount of the raw materials.
3. The batch type optical glass production process method according to claim 1, wherein the feeding temperature in step 1) is selected from a temperature corresponding to a viscosity of 100 to 300dpas as the feeding temperature according to viscosity temperature data of a glass formulation test, and preferably from a temperature corresponding to a viscosity of 200 to 250dpas as the feeding temperature.
4. The gap type optical glass production process method according to claim 1, wherein the fining temperature in step 2) is selected from a temperature corresponding to a viscosity of 50 to 100 dpas.
5. The gap type optical glass production process method according to claim 1, wherein the standing temperature in the step 2) is selected as a temperature corresponding to a viscosity of 600 to 800 dpas.
6. The process for producing a batch type optical glass according to claim 1, wherein the bubbling system is turned on in the charging stage, and the bubbling system is turned off in the clarifying stage and the discharging and forming stage.
7. The intermittent optical glass production device is characterized by comprising a kiln (1), wherein a flue port (2) is arranged at the top of the kiln (1), and a burning gun (3) is arranged at the upper part of the kiln (1); a charging opening (4) is formed in the side wall right in front of the upper part of the kiln (1); an electrode (5) is arranged at the lower part of the kiln (1); a bubbling system is arranged on the bottom (6) of the furnace (1); the side wall of the lower part of the kiln (1) is connected with a platinum discharging pipe (8).
8. The gap-type optical glass production device according to claim 7, characterized in that the upper and lower regions of the furnace (1) and the platinum tapping pipe (8) are provided with thermocouple devices.
9. The gap-type optical glass production device according to claim 7, wherein the horizontal section of the side wall of the kiln (1) is hexagonal or octagonal, when the furnace is hexagonal, two groups of electrodes (5) are preferably arranged on each layer, the number of the electrodes (5) is 1-3, each layer of the electrodes (5) is independently powered, and the electrodes (5) are preferably high-temperature SnO 2 Electrode or platinum electrode, snO is selected 2 Two groups of output power supplies of a Scott transformer are adopted when the electrodes are selected, and two paths of output power supplies of a medium-frequency power supply are adopted when the platinum electrodes are selected; when the octagonal electrode is adopted, three groups of electrodes (5) are preferably arranged on each layer, the number of the layers of the electrodes (5) is 1-3, each layer of the electrodes (5) is independently powered, and the electrodes (5) are preferably high-temperature SnO 2 Electrode or platinum electrode, snO is selected 2 When the electrodes are used, a three-phase transformer star-shaped wiring mode is adopted for power supply, and when the platinum electrodes are selected, a medium-frequency power supply three-way output is adopted for power supply.
10. The gap-type optical glass production device according to claim 7, wherein the electrode (5) at the lower part of the furnace (1) is a main heating system in the glass melting and refining stage, and the burning gun (3) at the upper part of the furnace (1) is an auxiliary heating system for adjusting the melting atmosphere.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211150451.4A CN115367999A (en) | 2022-09-21 | 2022-09-21 | Intermittent optical glass production method and device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211150451.4A CN115367999A (en) | 2022-09-21 | 2022-09-21 | Intermittent optical glass production method and device |
Publications (1)
| Publication Number | Publication Date |
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| CN115367999A true CN115367999A (en) | 2022-11-22 |
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| CN202211150451.4A Withdrawn CN115367999A (en) | 2022-09-21 | 2022-09-21 | Intermittent optical glass production method and device |
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Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3912484A (en) * | 1974-09-23 | 1975-10-14 | Corning Glass Works | Method of glass delivery for press-forming |
| DE10333298A1 (en) * | 2003-07-22 | 2005-07-21 | Schott Ag | Purified glass, formed by melting substances that form a matrix, in a melting unit, and chemically purifying using a purifying agent |
| WO2010001857A1 (en) * | 2008-06-30 | 2010-01-07 | 株式会社オハラ | Glass-formed body manufacturing method and manufacturing device |
| CN102531386A (en) * | 2010-10-06 | 2012-07-04 | 康宁股份有限公司 | Alkali-free glass compositions having high thermal and chemical stability |
| CN103420561A (en) * | 2013-08-15 | 2013-12-04 | 湖北戈碧迦光电科技股份有限公司 | Optical glass kiln melting tank |
| WO2015099143A1 (en) * | 2013-12-26 | 2015-07-02 | ＡｖａｎＳｔｒａｔｅ株式会社 | Glass substrate production method and glass substrate production apparatus |
| CN107140810A (en) * | 2017-04-27 | 2017-09-08 | 湖北戈碧迦光电科技股份有限公司 | A kind of optical glass manufacture method of post-defecation |
| CN112592029A (en) * | 2021-01-06 | 2021-04-02 | 成都光明光电股份有限公司 | Kiln for producing high-temperature glass |
-
2022
- 2022-09-21 CN CN202211150451.4A patent/CN115367999A/en not_active Withdrawn
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3912484A (en) * | 1974-09-23 | 1975-10-14 | Corning Glass Works | Method of glass delivery for press-forming |
| DE10333298A1 (en) * | 2003-07-22 | 2005-07-21 | Schott Ag | Purified glass, formed by melting substances that form a matrix, in a melting unit, and chemically purifying using a purifying agent |
| WO2010001857A1 (en) * | 2008-06-30 | 2010-01-07 | 株式会社オハラ | Glass-formed body manufacturing method and manufacturing device |
| CN102531386A (en) * | 2010-10-06 | 2012-07-04 | 康宁股份有限公司 | Alkali-free glass compositions having high thermal and chemical stability |
| CN103420561A (en) * | 2013-08-15 | 2013-12-04 | 湖北戈碧迦光电科技股份有限公司 | Optical glass kiln melting tank |
| WO2015099143A1 (en) * | 2013-12-26 | 2015-07-02 | ＡｖａｎＳｔｒａｔｅ株式会社 | Glass substrate production method and glass substrate production apparatus |
| CN107140810A (en) * | 2017-04-27 | 2017-09-08 | 湖北戈碧迦光电科技股份有限公司 | A kind of optical glass manufacture method of post-defecation |
| CN112592029A (en) * | 2021-01-06 | 2021-04-02 | 成都光明光电股份有限公司 | Kiln for producing high-temperature glass |
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Application publication date: 20221122 |
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