CN108328909B - Glass production device and production process thereof - Google Patents
Glass production device and production process thereof Download PDFInfo
- Publication number
- CN108328909B CN108328909B CN201810377901.0A CN201810377901A CN108328909B CN 108328909 B CN108328909 B CN 108328909B CN 201810377901 A CN201810377901 A CN 201810377901A CN 108328909 B CN108328909 B CN 108328909B
- Authority
- CN
- China
- Prior art keywords
- glass
- molten glass
- forming roller
- channel
- lip
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Classifications
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B17/00—Forming molten glass by flowing-out, pushing-out, extruding or drawing downwardly or laterally from forming slits or by overflowing over lips
- C03B17/06—Forming glass sheets
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B17/00—Forming molten glass by flowing-out, pushing-out, extruding or drawing downwardly or laterally from forming slits or by overflowing over lips
- C03B17/06—Forming glass sheets
- C03B17/064—Forming glass sheets by the overflow downdraw fusion process; Isopipes therefor
-
- Y—GENERAL 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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P40/00—Technologies relating to the processing of minerals
- Y02P40/50—Glass production, e.g. reusing waste heat during processing or shaping
- Y02P40/57—Improving the yield, e-g- reduction of reject rates
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Re-Forming, After-Treatment, Cutting And Transporting Of Glass Products (AREA)
- Joining Of Glass To Other Materials (AREA)
Abstract
The invention provides a glass production device and a production process thereof, wherein the glass production device comprises a feeding runner and a pull-down channel, wherein the discharge end of the feeding runner is communicated with the feed end of the pull-down channel; an overflow lip brick and a forming roller which is axially and horizontally arranged are arranged in a communicating area of the feeding flow channel and the pull-down channel, the lip root of the overflow lip brick is connected with the bottom of the feeding flow channel, and the lip opening of the overflow lip brick is positioned above the forming roller; when the glass liquid in the feeding flow passage overflows from the lip part of the overflow lip brick and falls onto the forming roller rotating at a constant speed, the glass liquid is drawn by the roller surface of the forming roller and under the action of the gravity of the glass liquid, a molten glass strip is formed by vertically extending a tangent line below the forming roller, and the molten glass strip descends in the downward drawing channel and is cooled into plate glass. The invention can produce the plate glass with large plate width, high surface quality and no need of processing on two surfaces.
Description
Technical Field
The invention relates to the technical field of glass production, in particular to a glass production device and a production process thereof.
Background
The ultrathin glass is widely used for substrates or cover plates of various display screens, and is a product with high technical content and high added value. The prior production process mainly comprises a float method (including a micro-float method), a slit downdraw method and an overflow downdraw method, but the product produced by the overflow downdraw method has the highest quality and both surfaces do not need to be treated; the tin liquid surface of the products produced by the float method and the micro-float method needs to be processed (ground and polished), and the two surfaces of the products produced by the slit down-draw method need to be processed (fire polished after annealing).
The overflow down-drawing method and the slit down-drawing method not only have patent barriers and very high equipment investment thresholds, but also have disadvantages, for example, the overflow method is limited by the equipment bearing and deformation influence in the width direction of the plate, and the slit down-drawing method also has the problem of bearing deformation of the slit of the platinum alloy container in the width direction.
The tin liquid surface of the glass plate produced by the float method or the micro-float method usually needs secondary processing of polishing and thinning, has high cost and influences strength, can not produce high-melting-point glass, and is difficult to meet the requirements of high-grade ultrathin glass on the strength per se or the strength after secondary strengthening.
Disclosure of Invention
In view of the above-mentioned disadvantages of the prior art, the present invention provides a glass production apparatus and a production process thereof, which can produce a large sheet width, high surface quality, and double-surface treatment-free flat glass.
In order to solve the technical problem, the invention provides a glass production device which comprises a feeding flow channel and a pull-down channel, wherein the discharge end of the feeding flow channel is communicated with the feed end of the pull-down channel; an overflow lip brick and a forming roller which is axially and horizontally arranged are arranged in a communication area of the feeding runner and the pull-down channel, the lip root of the overflow lip brick is connected with the bottom of the feeding runner, and the lip part of the overflow lip brick is positioned above the forming roller;
when the glass liquid in the feeding flow passage overflows from the lip part of the overflow lip brick and falls onto the forming roller rotating at a constant speed, the glass liquid is drawn by the roller surface of the forming roller and under the action of the gravity of the glass liquid, a molten glass strip is formed by vertically extending a tangent line below the forming roller, and the molten glass strip descends in the downward drawing channel and is cooled into plate glass.
Preferably, the height of the upper surface of the overflow lip brick gradually increases from the lip root to the lip part, and the lower surface of the lip part of the overflow lip brick is a concave arc surface matched with the roller surface of the forming roller.
Preferably, a plurality of plate heel coolers are also included; when molten glass is formed into a molten glass ribbon by vertically extending the molten glass at a tangent line below the forming rolls, all of the plates and the cooler are uniformly distributed in the vicinity of opposite sides of the molten glass ribbon.
Preferably, a heater is arranged outside the forming roller and/or inside the forming roller.
Preferably, the forming device further comprises a speed regulator for controlling the rotating speed of the forming roller.
Preferably, the feeding flow channel and the pull-down channel are respectively provided with a heat preservation heating regulating system.
Preferably, a drawing device is provided in the down-draw channel for drawing a ribbon of molten glass and/or sheet glass.
The invention also provides a production process adopting the glass production device, which comprises the following steps:
adjusting the width of the feeding flow channel to ensure that the width of the feeding flow channel is matched with the width of the plate glass to be produced;
introducing molten glass into the feeding flow channel, and adjusting the temperature in the feeding flow channel and changing along the advancing direction of the feeding flow channel;
adjusting the rotating speed of the forming roller and the temperature of the roller surface of the forming roller to ensure that the roller surface of the forming roller is always fully wrapped by the glass liquid and a molten glass strip is formed by vertically extending a tangent line below the forming roller;
the temperature of the molten glass ribbon is adjusted to gradually cool the molten glass ribbon in the down-draw channel to form sheet glass.
Preferably, the temperature of the roller surface of the forming roller is 1100-1300 ℃.
Preferably, the temperature in the vicinity of the overflow lip is 1200 to 1300 ℃.
As mentioned above, the glass production device and the production process thereof have the following beneficial effects: the glass production device and the production process thereof can produce the plate glass with double original surfaces and good flatness, namely, both surfaces of the plate glass are undamaged natural surfaces. Compared with the existing overflow method and the slit downdraw method, the invention is easier to produce the plate glass with large plate width and high surface quality; compared with the existing float method, the method has the advantages that the adopted equipment is simpler, and the post surface treatment cost of the glass plate is saved; compared with the existing glass production equipment, the invention is more suitable for producing ultrathin glass plates with the plate width of more than 2m and the thickness of less than 1.3mm and without processing on double surfaces, and the investment and operation cost are lower.
Drawings
FIG. 1 is a schematic view showing the structure of a glass production apparatus of the present invention;
fig. 2 is an enlarged view of a portion a in fig. 1.
Description of the element reference numerals
1. Feeding flow passage
2. Pull-down channel
3. Overflow lip brick
3a root of the lip
3b lip part
3c concave arc surface
4. Forming roller
4a forming roll surface
5. Molten glass ribbon
5a forming heel of a molten glass ribbon
6. Plate heel cooler
7. Glass liquid
8. Mechanical stirrer
9. Flow regulating gate
10. First heating member
11. Partition beam
12. Second heating element
13. Smoke discharging cooling adjusting device
Detailed Description
The embodiments of the present invention are described below with reference to specific embodiments, and other advantages and effects of the present invention will be readily apparent to those skilled in the art from the disclosure of the present invention.
It should be understood that the structures, ratios, sizes, and the like shown in the drawings are only used for matching the disclosure of the present disclosure, and are not used for limiting the conditions that the present disclosure can be implemented, so that the present disclosure is not limited to the technical essence, and any structural modifications, ratio changes, or size adjustments should still fall within the scope of the present disclosure without affecting the efficacy and the achievable purpose of the present disclosure. In addition, the terms "upper", "lower", "left", "right", "middle" and "one" used in the present specification are for clarity of description, and are not intended to limit the scope of the present invention, and the relative relationship between the terms and the terms is not to be construed as a scope of the present invention.
As shown in fig. 1 and 2, the invention provides a glass production device, which comprises a feeding flow channel 1 and a down-drawing channel 2, wherein the discharge end of the feeding flow channel 1 is communicated with the feed end of the down-drawing channel 2; an overflow lip brick 3 and a forming roller 4 which is axially and horizontally arranged are arranged in a communication area of the feeding runner 1 and the pull-down channel 2, a lip root part 3a of the overflow lip brick 3 is connected with the bottom of the feeding runner 1, and a lip part 3b of the overflow lip brick 3 is positioned above the forming roller 4;
when the molten glass 7 in the feeding runner overflows through the lip part 3b of the overflow lip brick 3 and falls onto the forming roller 4 rotating at a constant speed, the molten glass 7 is drawn by the roller surface 4a of the forming roller and vertically extends at the tangent line below the forming roller 4 under the action of the gravity of the molten glass, and the molten glass 5 descends in a downward drawing channel and is cooled into plate glass.
In the invention, the forming roller 4 rotates at a constant speed and is horizontally arranged in the axial direction, so that the technical effects are as follows: first, the forming roll surface 4a of the forming roll 4 can pull the molten glass 7 and reduce the surface tension of the molten glass 7, so that the width of the molten glass ribbon 5 can be maintained to the width of the sheet glass to be produced; secondly, the forming roll surface 4a of the forming roll 4 can be always fully wrapped with the molten glass 7, and the molten glass 7 wrapped on the forming roll surface 4a does not generate bubbles, so that the molten glass ribbon 5 can be prevented from being doped with bubbles; thirdly, when the forming roller 4 is still, the forming roller 4 can be bent and deformed, but in the production process of the plate glass, the forming roller 4 provided by the invention can ensure that the forming roller does not generate bending deformation by rotating at a constant speed, so that the axis of the forming roller is always kept in a straight line shape, and the forming quality of the plate glass can be improved; fourth, the rotational speed of the forming rolls 4 is stabilized, and the radian of the forming heel 5a of the molten glass ribbon 5 projected at the lower tangent line of the forming rolls 4 is maintained constant, thereby stabilizing the shape of the molten glass ribbon 5. Under the draw of the down draw channel, the molten glass ribbon 5 descends and cools into sheet glass.
The glass production device can produce the plate glass with double original surfaces and good flatness, namely, both surfaces of the plate glass are undamaged natural surfaces. In addition, compared with the existing overflow method and the slit down-drawing method, the invention has simple structure and is easier to produce the plate glass with large plate width and high surface quality; compared with the existing float method, the equipment of the invention is simple, and the post surface treatment cost of the glass plate is saved; compared with the existing glass production equipment, the glass production device is more suitable for producing ultrathin glass plates with the plate width of more than 2m and the thickness of less than 1.3mm and without treatment on double surfaces, and has lower investment and operation cost.
In specific implementation, the diameter and the rotating speed of the forming roller 4 can be adjusted according to the thickness requirement of the plate glass to be produced. The forming roll 4 is made of a material which is heat-resistant, corrosion-resistant and has a very small thermal expansion coefficient, so that when the forming roll 4 is wrapped with the molten glass 7 with high temperature, deformation does not occur (even if the forming roll 4 deforms, the deformation amount is within the deformation range allowed by the production process), thereby ensuring that the plate glass formed in the down-draw channel has good flatness. The forming roll surfaces 4a of the forming rolls 4 are smooth, so that the smoothness of both surfaces of the molten glass ribbon 5 formed by vertical drawing can be more improved, and the flatness of the finally produced sheet glass can be more improved.
The feeding flow channel 1 and the pull-down channel 2 can be built by adopting refractory heat-insulating materials, and the feeding flow channel 1 and the pull-down channel 2 can be combined into a whole.
Further, a glass-liquid homogenizing device (for example, an ultrasonic homogenizing device, a bubbling device, or a mechanical stirrer 8) is provided in the supply flow path 1, so that glassy inclusions (streaks and nodules) can be eliminated to the maximum extent. Still be equipped with glass liquid flow control device on feed runner 1, can finely, accurately adjust the glass liquid flow of flowing to on the forming roll 4 through glass liquid flow control device, glass liquid flow control device can adopt heat-resisting, resistant erosion's flow control flashboard 9, and flow control flashboard 9 is preferred to be set up in the top of overflow lip brick 3, and the overflow volume of glass liquid 7 is controlled more accurately like this. As a better design, the outer surfaces of the mechanical stirrer 8, the flow regulating gate plate 9 and the overflow lip brick 3 can be coated with platinum layers, so that the mechanical stirrer, the flow regulating gate plate 9 and the overflow lip brick have good erosion resistance to the molten glass 7 with the temperature of above 1300 ℃.
The height of the upper surface of the overflow lip 3 gradually increases from the lip root 3a to the lip portion 3b, and the lower surface of the lip portion of the overflow lip 3 is a concave arc surface 3c which is matched with the forming roll surface 4 a. In general, since the top of the feeding channel 1 is provided with a heat-insulating heating adjustment system (the heat-insulating heating adjustment system is used for adjusting the temperature of the molten glass 7), and the depth of the molten glass on the lip portion 3b of the overflow lip 3 is smaller than the depth of the molten glass on the bottom of the feeding channel 1, the height of the upper surface of the overflow lip 3 gradually increases from the lip root portion 3a to the lip portion 3b, so that the molten glass 7 on the lip portion 3b is closer to the heat-insulating heating adjustment system, and the temperature control of the molten glass 7 on the lip portion 3b is more efficient and accurate. The lower surface of the lip part of the overflow lip brick 3 is a concave arc surface 3c matched with the forming roller surface 4a, so that the height difference between the lip part 3b and the forming roller surface 4a can be reduced, the fall of the molten glass 7 is reduced, the impact of the overflowing molten glass 7 on the forming roller 4 is reduced, the uniformity of the molten glass wrapped on the forming roller surface 4a is improved, and the surface of the molten glass strip 5 formed in the way is smoother.
The glass production apparatus of the present invention further comprises a plurality of plate heel coolers 6; when molten glass 7 is formed into a molten glass ribbon 5 by being drawn at a tangent line below the forming rolls 4, all of the plate-and-cooler 6 are uniformly distributed in the vicinity of opposite sides of the molten glass ribbon 5, and the plate-and-cooler 6 can promote the preliminary setting of the forming heel 5a of the molten glass ribbon 5. In practice, each of the plate-and-cooler 6 is formed in an elongated shape having a length not shorter than the width of the molten glass ribbon 5 and extending in the width direction of the molten glass ribbon 5, and the two plate-and-cooler 6 can be used by the manufacturer in the vicinity of the opposite sides of the molten glass ribbon 5, whereby the cooling effect is improved.
Heaters are provided outside the forming rolls 4 and/or inside the forming rolls 4 to keep the viscosity of the molten glass 7 at a predetermined temperature, so that the molten glass 7 can be adhered to the roll surfaces 4a of the forming rolls, the forming heel 5a of the molten glass ribbon 5 can be formed at a tangent line, and the thickness and width of the forming heel 5a of the molten glass ribbon 5 hanging down can be adjusted. In the concrete operation, heaters are provided outside and inside the forming rolls 4, so that the soaking property of the molten glass 7 wrapped around the forming rolls 4 is further improved, thereby improving the stability of the shape of the molten glass ribbon 5 and the smoothness of both surfaces of the molten glass ribbon 5.
The glass production apparatus of the present invention further comprises a speed regulator for controlling the rotation speed of the forming roll 4. The thickness of the molten glass ribbon 5 can be adjusted more precisely by controlling the rotation speed of the forming rolls 4.
Preferably, the feeding channel 1 and the down-drawing channel 2 are respectively provided with a heat preservation heating adjusting system, and the heat preservation heating adjusting system of the feeding channel can adjust the temperature of the molten glass 7. Specifically, the heat preservation and heating regulation system of the feed flow passage comprises a plurality of first heating members 10 distributed along the advancing direction of the feed flow passage, and the first heating members 10 can be controlled independently or integrally. A more preferred design of the insulated heating conditioning system as a feed runner: the heat preservation heating governing system of feed runner is still including setting up on feed runner 1, and many division roof beams 11 that distribute along feed runner direction of advance, all first heating members are divided into the multiunit by division roof beam 11, the temperature diverse of every group first heating member, division roof beam 11 can reduce the influence each other of adjacent group first heating member, be favorable to feed runner 1 to form the temperature gradient that changes along feed runner direction of advance more, thereby satisfy the temperature requirement of glass liquid 7. The heat preservation heating regulation system of the feeding runner further comprises a smoke exhaust cooling regulation device 13 arranged on the feeding runner 1, and the smoke exhaust cooling regulation device can be used for assisting in regulating the temperature gradient of the feeding runner 1 and discharging smoke in the feeding runner. The heat-insulating heating regulating system on the down-draw channel 2 comprises a plurality of second heating members 12, all of which are uniformly distributed on two opposite sides of the down-draw channel 2, namely, when the molten glass 7 vertically extends at a tangent line below the forming rollers 4 to form a molten glass ribbon 5, all of which are uniformly distributed in the vicinity of two opposite surfaces of the molten glass ribbon 5. As a more preferred design of the holding heating regulation of the pull-down channel: the two second heating members arranged oppositely form a group, the temperature of each group of second heating members is different and gradually reduced along the forward direction of the down-drawing channel, so that the molten glass strip 5 is gradually cooled into the plate glass in the process of descending in the down-drawing channel, and the quality of the finally shaped plate glass is better. During specific operation, the upper portion of pull-down passageway is the gas heating, and the rest of pull-down passageway is through second heating member heating (second heating member electric work), so with reduction displacement and heat dissipation capacity, also do benefit to pull-down passageway's temperature gradient more stable simultaneously.
The down-draw channel is provided with a drawing device (not shown) for drawing the molten glass ribbon 5 and/or the sheet glass. And a cutting device can be arranged below the down-drawing channel 2, and the plate glass is cut into finished glass plates according to the production requirements of the glass plates.
The invention also provides a production process adopting the glass production device, which comprises the following steps:
s1, adjusting the width of a feeding runner 1 to ensure that the width of the feeding runner 1 is matched with the width of the plate glass to be produced;
s2, introducing the molten glass 7 into the feeding runner 1, and adjusting the temperature in the feeding runner and changing along the advancing direction of the feeding runner;
s3, adjusting the rotating speed of the forming roller 4 and the temperature of the roller surface 4a of the forming roller to enable the molten glass 7 to wrap the roller surface 4a of the forming roller all the time and vertically extend at a tangent line below the forming roller 4 to form a molten glass ribbon 5;
and S4, adjusting the temperature in the down-drawing channel and changing along the advancing direction of the down-drawing channel to gradually cool the molten glass ribbon 5 into the flat glass in the down-drawing channel.
In the production process of the invention, molten glass 7 uniformly flows out from a feeding runner 1 through an overflow lip brick 3 and falls on a forming roller 4, then a molten glass ribbon 5 is vertically extended and horizontally thrown out at a tangent line below the forming roller, and finally the molten glass is formed into plate glass with double original surfaces and good flatness under the drawing of a drawing channel 2 and at a strict temperature. The production process of the invention adopts simple equipment, is easier to produce the plate glass with large plate width and high surface quality, is especially suitable for producing ultrathin glass plates with plate width of more than 2m and thickness of less than 1.3mm, and two surfaces produced finally are natural surfaces which do not need processing and have good flatness, thereby saving the surface treatment cost of the glass at the later stage.
The steps S1 to S4 can be adjusted back and forth according to specific glass production conditions.
The production process also comprises a step S5, wherein the cutting device is arranged below the pull-down channel 2, and the flat glass is cut into finished glass plates through the cutting device.
In step S4, the method further includes drawing the molten glass ribbon 5 to adjust the thickness of the molten glass ribbon 5.
The temperature of the roll surface 4a of the forming roll is 1100-1300 ℃, and the temperature range can keep the viscosity of the molten glass 7 at 10 DEG 2 Pa.s or so, so that the molten glass 7 can be adhered to the roll surfaces 4a of the forming rolls, and the molten glass ribbon 5 can be formed while keeping the tangent line, and the thickness and width of the forming root 5a of the molten glass ribbon 5 hanging down can be adjusted.
The temperature near the overflow lip is 1200-1300 ℃ so as to keep the overflowing molten glass 7 in a thin, wide and stable state.
In conclusion, the invention can produce the plate glass with large plate width, high surface quality and double surfaces without treatment. Therefore, the invention effectively overcomes various defects in the prior art and has high industrial utilization value.
The foregoing embodiments are merely illustrative of the principles and utilities of the present invention and are not intended to limit the invention. Any person skilled in the art can modify or change the above-mentioned embodiments without departing from the spirit and scope of the present invention. Accordingly, it is intended that all equivalent modifications or changes which can be made by those skilled in the art without departing from the spirit and technical spirit of the present invention be covered by the claims of the present invention.
Claims (9)
1. A glass production device is characterized in that: the device comprises a feeding flow channel (1) and a pull-down channel (2), wherein the discharge end of the feeding flow channel (1) is communicated with the feed end of the pull-down channel (2); an overflow lip brick (3) and a forming roller (4) which is horizontally arranged in the axial direction are arranged in a communication area between the feeding runner (1) and the pull-down channel (2), a heater is arranged outside the forming roller (4) and/or inside the forming roller (4), a lip root (3 a) of the overflow lip brick (3) is connected with the bottom of the feeding runner (1), a heat preservation heating adjusting system is arranged at the top of the feeding runner (1), the height of the upper surface of the overflow lip brick (3) gradually rises from the lip root (3 a) to a lip part (3 b), so that glass liquid (7) on the lip part (3 b) is closer to the heat preservation heating adjusting system, and the lip part (3 b) of the overflow lip brick (3) is positioned above the forming roller (4);
when the molten glass (7) in the feeding runner overflows through the lip part (3 b) of the overflow lip brick (3) and falls onto the forming roller (4) rotating at a constant speed, the molten glass (7) is drawn by the roller surface (4 a) of the forming roller and vertically extends at the tangent line below the forming roller (4) under the action of the gravity of the molten glass to form a molten glass ribbon (5), and the molten glass ribbon (5) descends in a downward drawing channel and is cooled into plate glass.
2. The glass production apparatus according to claim 1, wherein: the lower surface of the lip part of the overflow lip brick (3) is a concave arc surface (3 c) which is matched with the roller surface (4 a) of the forming roller.
3. The glass production apparatus of claim 1, wherein: also comprises a plurality of heel coolers (6); when molten glass (7) is drawn at a tangent line below the forming roll (4) to form a molten glass ribbon (5), all of the plates and the cooler (6) are uniformly distributed in the vicinity of opposite sides of the molten glass ribbon (5).
4. The glass production apparatus according to claim 1, wherein: the forming device also comprises a speed regulator, wherein the speed regulator is used for controlling the rotating speed of the forming roller (4).
5. The glass production apparatus of claim 1, wherein: and the pull-down channel (2) is provided with a heat preservation heating regulation system.
6. The glass production apparatus of claim 1, wherein: and a drawing device is arranged in the down-drawing channel and is used for drawing the molten glass ribbon and/or the flat glass.
7. A production process using the glass production apparatus according to claim 1, characterized in that: the method comprises the following steps:
adjusting the width of the feeding runner (1) to ensure that the width of the feeding runner (1) is matched with the width of the plate glass to be produced;
introducing molten glass (7) into the feeding flow channel (1), and adjusting the temperature in the feeding flow channel and changing along the advancing direction of the feeding flow channel; adjusting the rotating speed of the forming roller (4) and the temperature of the roller surface (4 a) of the forming roller to ensure that the molten glass (7) is always wrapped on the roller surface (4 a) of the forming roller and vertically extends at a tangent line below the forming roller (4) to form a molten glass ribbon (5);
the temperature of the molten glass ribbon (5) is gradually cooled in the down-draw channel to form a sheet glass by adjusting the temperature of the molten glass ribbon in the down-draw channel to vary along the forward direction of the down-draw channel.
8. The production process according to claim 7, characterized in that: the temperature of the roller surface (4 a) of the forming roller is 1100-1300 ℃.
9. The production process according to claim 7, characterized in that: the temperature near the overflow lip brick is 1200-1300 ℃.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810377901.0A CN108328909B (en) | 2018-04-25 | 2018-04-25 | Glass production device and production process thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810377901.0A CN108328909B (en) | 2018-04-25 | 2018-04-25 | Glass production device and production process thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108328909A CN108328909A (en) | 2018-07-27 |
| CN108328909B true CN108328909B (en) | 2023-01-24 |
Family
ID=62933611
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810377901.0A Active CN108328909B (en) | 2018-04-25 | 2018-04-25 | Glass production device and production process thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108328909B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110698043B (en) * | 2019-11-21 | 2022-03-15 | 成都光明光电股份有限公司 | Glass sheet forming apparatus and method |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPWO2012026136A1 (en) * | 2010-08-27 | 2013-10-28 | ＡｖａｎＳｔｒａｔｅ株式会社 | Glass substrate manufacturing apparatus and glass substrate manufacturing method |
| CN104843973A (en) * | 2015-05-09 | 2015-08-19 | 蚌埠玻璃工业设计研究院 | Front-flattening device used for sheet glass calendaring machine |
| CN106145620A (en) * | 2016-09-09 | 2016-11-23 | 蚌埠中建材信息显示材料有限公司 | A kind of thin float glass molding tin bath outlet device |
| CN208266032U (en) * | 2018-04-25 | 2018-12-21 | 中国建材国际工程集团有限公司 | glass production device |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20040093900A1 (en) * | 2002-11-15 | 2004-05-20 | Fredholm Allan M. | Apparatus and method for producing sheets of glass presenting at least one face of very high surface quality |
-
2018
- 2018-04-25 CN CN201810377901.0A patent/CN108328909B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPWO2012026136A1 (en) * | 2010-08-27 | 2013-10-28 | ＡｖａｎＳｔｒａｔｅ株式会社 | Glass substrate manufacturing apparatus and glass substrate manufacturing method |
| CN104843973A (en) * | 2015-05-09 | 2015-08-19 | 蚌埠玻璃工业设计研究院 | Front-flattening device used for sheet glass calendaring machine |
| CN106145620A (en) * | 2016-09-09 | 2016-11-23 | 蚌埠中建材信息显示材料有限公司 | A kind of thin float glass molding tin bath outlet device |
| CN208266032U (en) * | 2018-04-25 | 2018-12-21 | 中国建材国际工程集团有限公司 | glass production device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108328909A (en) | 2018-07-27 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| KR101329867B1 (en) | Process and device for manufacturing flat sheets of a glass-based material | |
| CN100361912C (en) | Method and device for producing thin glass panes | |
| US20130133372A1 (en) | Glass flow management by thermal conditioning | |
| CN110698043B (en) | Glass sheet forming apparatus and method | |
| CN112340965A (en) | Production device and production method of flexible glass | |
| CN102596828A (en) | Glass sheet manufacturing method | |
| TWI613158B (en) | Method for producing glass substrate and device for manufacturing glass substrate | |
| CN105036529B (en) | The manufacture method of the glass plate of alkali-free glass | |
| CN108328909B (en) | Glass production device and production process thereof | |
| JP5369193B2 (en) | Sheet glass manufacturing method and apparatus | |
| CN110255867B (en) | Device and method for producing flexible glass | |
| CN110312686A (en) | The manufacturing method of the manufacturing process of melten glass, forming device and glassware | |
| CN107265834A (en) | The manufacture method of glass substrate and the manufacture device of glass substrate | |
| US20190169059A1 (en) | Methods for forming thin glass sheets | |
| JP2023524228A (en) | Method for producing low liquidus viscosity sheet glass | |
| CN112839801B (en) | Method and apparatus for forming laminated glass sheets | |
| US20230183119A1 (en) | Puddle formation device | |
| CN213680362U (en) | Production device of flexible glass | |
| US3352657A (en) | Method of attenuating a ribbon of glass on a molten metal bath | |
| CN208266032U (en) | glass production device | |
| JP2019094245A (en) | Float glass production method and float glass | |
| US20240002271A1 (en) | Method and device for drawing thin glass ribbons | |
| US11261118B2 (en) | Apparatus and method for rapid cooling of a glass ribbon in a glass making process | |
| CN115784576A (en) | Spreading forming equipment, production equipment and spreading forming process for special glass | |
| TW202335982A (en) | Conveyance apparatus and method with adjustable fluid flow |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |