CN109437520B - Novel forming device and method for float glass ceramics - Google Patents
Novel forming device and method for float glass ceramics Download PDFInfo
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- CN109437520B CN109437520B CN201910022306.XA CN201910022306A CN109437520B CN 109437520 B CN109437520 B CN 109437520B CN 201910022306 A CN201910022306 A CN 201910022306A CN 109437520 B CN109437520 B CN 109437520B
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- 238000000034 method Methods 0.000 title claims abstract description 26
- 239000000919 ceramic Substances 0.000 title claims abstract description 17
- 239000005329 float glass Substances 0.000 title claims abstract description 17
- 239000011449 brick Substances 0.000 claims abstract description 165
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 claims abstract description 34
- 238000002425 crystallisation Methods 0.000 claims abstract description 26
- 230000008025 crystallization Effects 0.000 claims abstract description 26
- 239000011521 glass Substances 0.000 claims description 51
- 239000007788 liquid Substances 0.000 claims description 49
- 239000002241 glass-ceramic Substances 0.000 claims description 27
- 238000001816 cooling Methods 0.000 claims description 17
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 5
- 238000007789 sealing Methods 0.000 claims description 4
- 238000005485 electric heating Methods 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 abstract description 7
- 230000001276 controlling effect Effects 0.000 description 6
- 239000005357 flat glass Substances 0.000 description 3
- 238000005273 aeration Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000000156 glass melt Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
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- 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
-
- 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
-
- 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
- C03B7/07—Electric means
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Furnace Charging Or Discharging (AREA)
- Glass Compositions (AREA)
Abstract
The invention discloses a novel forming device and a novel forming method for float glass ceramics, and the novel forming device comprises a flow channel, a movable lip brick and a molten tin bath, wherein the top of the flow channel is provided with a flow channel top brick, the side wall of the flow channel is provided with a flow channel wall brick, the bottom of the flow channel top brick is provided with a flow channel bottom brick, a safety flashboard is inserted in the flow channel top brick, the bottom of the flow channel is provided with a flow channel bottom brick, the upper part of the flow channel bottom brick is provided with an adjusting flashboard, the flow channel bottom brick and the bottom of the flow channel bottom brick both fall on the same. The original structure of the horizontal fixed runner lip brick is changed into a structure of a runner and a vertical runner and a movable lip brick, so that the temperature of the runner, the runner and the lip brick can be controlled independently, the problem of crystallization caused by the temperature problem is solved effectively, the crystallization area can be controlled, the crystallization is easier to process, and the problem of production caused by crystallization at the runner lip brick is solved.
Description
Technical Field
The invention belongs to the technical field of glass ceramic forming, and particularly relates to a novel forming device and method for float glass ceramic.
Background
At present, the forming part of the domestic float microcrystalline process is based on the float forming process of flat glass, and adopts the structural forms of a runner, a launder and a lip brick to complete the forming in a tin bath. However, the microcrystalline glass product has many differences from the common plate glass in terms of components and material properties, for example, the common plate glass is not easy to crystallize in the runner and the lip brick, the process is smooth, while the material properties of the microcrystalline glass are easy to crystallize in the above area, once crystallized, the production state is abnormal, if light, the production is unstable, and if serious, the production must be stopped for maintenance.
In the prior structure, a flow channel, a flow groove and a lip brick are horizontally connected together, the distance is short, and the microcrystalline glass liquid entering a tin bath is required to be in a temperature range suitable for forming, so the temperature of the microcrystalline glass at the flow channel, the flow groove and the lip brick is required to be adapted to the requirement, the temperature is close to the crystallization temperature point of the microcrystalline glass, the forming temperature requirement is met, the crystallization phenomenon cannot be avoided, the temperature is increased to avoid crystallization, the forming temperature is overhigh, and the forming is difficult.
Disclosure of Invention
The invention provides a novel forming device and a novel forming method for float glass ceramics, which change the original horizontal fixed runner lip brick structure into a runner and vertical runner and movable lip brick structure, so that the temperature of the runner, the runner and the lip bricks can be independently controlled, the problem of crystallization caused by the temperature problem is effectively solved, the crystallization area can be controlled, the crystallization is easier to process, the problem of production caused by crystallization at the runner lip brick is solved, and meanwhile, the movable lip brick is adopted, the lip brick is convenient to replace after crystallization, and the influence on other structures in the device can not be brought. The technical scheme of the invention is realized as follows:
a novel forming device of float glass ceramics comprises a flow channel, a movable lip brick and a tin bath, wherein the top of the flow channel is provided with a flow channel top brick, the side wall of the flow channel is provided with a flow channel wall brick, the bottom of the flow channel top brick is provided with a flow channel bottom brick, a safety flashboard is inserted in the flow channel top brick and penetrates through the flow channel top brick and falls into the flow channel, the bottom of the flow channel is provided with a flow channel bottom brick, the upper part of the flow channel bottom brick is provided with an adjusting flashboard, one side of the adjusting flashboard abuts against the side surface of the flow channel top brick, one side of the adjusting flashboard is provided with a sealing top brick, the flow channel bottom brick and the bottom of the flow channel bottom brick both fall on the same backing brick, the bottom of the backing brick is connected with a support frame, the movable lip brick and the tin bath are arranged below the backing brick, the bottom of the tin bath is provided with, the position of the inclined side face corresponds to the position right below the side face of the launder bottom brick.
In the novel forming device of the float glass-ceramic, the movable lip brick comprises a top surface, a first bottom surface, a second bottom surface, a left side surface and a right inclined surface, wherein the top surface, the first bottom surface, the second bottom surface and the left side surface are all planes, the first bottom surface is in contact with the side wall brick, the second bottom surface is above the side wall brick and the tin bath notch, the right inclined surface is above the tin bath notch and is a downward inclined surface, the joint of the top surface and the right inclined surface is a smooth arc surface, and the joint of the second bottom surface and the right side surface is a fillet surface.
In the novel forming device of float glass ceramics, the top surface of the runner bottom brick is in an upward slope along the flow direction.
In the novel forming apparatus for float glass-ceramic of the present invention, the trough is in an open state or a semi-open state or a closed state.
The invention also provides a novel forming method of float glass ceramics, which comprises three temperature control means, namely primary temperature control, secondary temperature control and tertiary temperature control, wherein the tertiary temperature control is carried out in three corresponding temperature control areas, namely a temperature control area A, a temperature control area B and a temperature control area C, the temperature control area A is positioned at the upper part of the launder bottom brick, the temperature control area B is positioned at the side surface of the launder bottom brick, and the temperature control area C is positioned at the oblique side surface of the movable lip brick, and the method comprises the following steps:
(1) the melted microcrystalline glass liquid flows into the sluice from the flashboard through the runner, then flows into the launder, passes through the temperature control area A, is subjected to primary temperature control, and is controlled above the crystallization temperature by adopting a high-temperature means, so that the crystallization of the area is avoided;
(2) the microcrystalline glass liquid flows into a temperature control area B, and secondary temperature control is carried out in the area by adopting a natural cooling and air cooling or water cooling method;
(3) and the microcrystalline glass liquid flows to the movable lip brick, flows through the temperature control area C, is subjected to temperature control for three times in the area by adopting an electric heating or air cooling and water cooling mode, so that the microcrystalline glass liquid reaches a temperature suitable for forming, enters a tin bath, and is finally formed in the tin bath.
In the novel forming method of float glass-ceramic of the invention, the channel through which the glass-ceramic liquid flows in the temperature control area A is horizontal, the channel through which the glass-ceramic liquid flows in the temperature control area B is vertical, and the channel through which the glass-ceramic liquid flows in the temperature control area C is inclined.
In the novel forming method of the float glass ceramics, the flow of the three temperature control areas can be adjusted by adopting an adjusting flashboard control or liquid level control mode.
The novel forming device and the method for the float glass-ceramic have the following beneficial effects:
1. the original structure of the horizontal fixed runner lip brick is changed into a structure of a runner and a vertical runner and a movable lip brick, so that the temperature of the runner, the runner and the lip brick can be controlled independently, the problem of crystallization caused by the temperature problem is solved effectively, the crystallization area can be controlled, the crystallization is easier to process, and the problem of production caused by crystallization at the runner lip brick is solved.
2. The movable lip brick is adopted, after crystallization, the lip brick is convenient to replace, and other structures in the device cannot be affected.
Drawings
FIG. 1 is a schematic view of a novel forming device of float glass ceramics according to the invention;
FIG. 2 is a schematic view of a conventional float glass-ceramic forming device;
fig. 3 is a schematic view of a movable lip tile in embodiment 1 of the present invention.
FIG. 4 is a schematic view of a movable lip tile according to embodiment 2 of the present invention;
fig. 5 is a schematic view of the connection between the movable lip tile and the side wall tile in embodiment 2 of the present invention.
Detailed Description
The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.
Example 1
As shown in figures 1 and 3, a new forming device for float glass ceramics comprises a runner 1, a runner 2, a movable lip brick 3 and a tin bath 4, wherein the top of the runner is provided with a runner top brick 5, the side wall of the runner is provided with a runner wall brick 6, the bottom of the runner top brick is provided with a runner bottom brick 7, the top surface of the runner bottom brick 7 is in an upward slope shape along the flow direction, a safety flashboard 8 is inserted in the runner top brick 5, the safety flashboard 8 penetrates through the runner top brick 5, the melted glass ceramics flows in from the flashboard 8 through the runner 1, the safety flashboard 8 is used for setting the highest level of the glass ceramics when flowing through the runner 1 by fixing a proper height position, thereby not only controlling the flow and the flow velocity of the glass, but also preventing the overflow risk of the runner of the glass, the glass liquid flows into the runner 2, and the temperature control area A is used for controlling the temperature once, the temperature is controlled above the crystallization temperature, and ensuring that, the bottom of the launder 2 is provided with a launder bottom brick 9, the upper part of the launder bottom brick 9 is provided with an adjusting flashboard 10, one side of the adjusting flashboard 10 is abutted against the side surface of a launder top brick 5, one side of the adjusting flashboard is provided with a sealing top brick 11, the height position from the bottom surface of an adjusting plate to the top surface of the launder bottom brick 9 can be used for adjusting the flow and flow speed of microcrystalline glass liquid when flowing through the launder 2, the bottoms of the launder bottom brick 9 and the launder bottom brick 7 are both dropped on the same backing brick 12, the bottom of the backing brick 12 is connected with a support frame 13, a movable lip brick 3 and a tin bath 4 are arranged below the backing brick 13, the glass liquid flows through the right side surface of the launder bottom brick 9, which is a temperature control area B, secondary temperature control is carried out, further, the glass liquid is dropped on the right inclined surface of the backing brick 13, which is a temperature control area C, the third temperature control is carried, the bottom of the tin bath 4 is provided with a pool bottom brick 14, the side wall is provided with a side wall brick 15, the movable lip brick 3 is arranged on the top surface of the side wall brick 15, and the position of the inclined side surface corresponds to the position right below the side surface of the launder bottom brick 9.
The structure and function of the safety flashboard 8 and the regulating flashboard 10 are consistent with those of the prior art in the industry, the safety flashboard 8 is used for setting the highest level of the microcrystalline glass liquid when flowing through the flow channel 1 by fixing a proper height position, so that the flow and the flow speed of the glass liquid are effectively controlled, and the overflow risk of the glass liquid can be prevented; the adjusting gate plate 10 is used for adjusting and controlling the flow and flow rate of the microcrystalline glass liquid flowing through the launder 2 by adjusting the height position from the bottom surface of the plate to the top surface of the launder bottom brick 9.
The movable lip brick 3 is directly placed on the top surface of the side wall brick 15 and can be movably replaced, and the movable lip brick comprises a top surface 31, a first bottom surface 32, a second bottom surface 33, a left side surface 34 and a right inclined surface 35, wherein the top surface 31, the first bottom surface 32, the second bottom surface 33 and the left side surface 34 are planes, the first bottom surface 32 is in contact with the side wall brick 15, the second bottom surface 33 is above the notches of the side wall brick 15 and the molten tin bath 4, the right inclined surface 35 is located above the notches of the molten tin bath 4 and is a downward inclined surface, the joint of the top surface 31 and the right inclined surface 35 is a smooth circular arc surface 36, and the joint of the second bottom surface 33 and the right inclined surface 35.
Example 2
As shown in fig. 1, 4 and 5, the novel forming device for float glass ceramics comprises a runner 1, a runner 2, a movable lip brick 3 and a tin bath 4, wherein the top of the runner is provided with a runner top brick 5, the side wall of the runner is provided with a runner wall brick 6, the bottom of the runner top brick is provided with a runner bottom brick 7, the top surface of the runner bottom brick 7 is in an upward slope shape along the flow direction, a safety flashboard 8 is inserted in the runner top brick 5, the safety flashboard 8 penetrates through the runner top brick 5, the melted glass ceramics flows in from the flashboard 8 through the runner 1, the safety flashboard 8 is used for setting the highest level of the glass ceramics when flowing through the runner 1 by fixing a proper height position, thereby not only controlling the flow and flow rate of the glass liquid, but also preventing the overflow risk of the glass melt, the glass liquid then flows into the runner 2, which is a temperature control area a, once temperature control is carried out, the temperature control is, ensuring that the area can not be crystallized, arranging a launder bottom brick 9 at the bottom of the launder 2, arranging an adjusting flashboard 10 at the upper part of the launder bottom brick 9, enabling one side of the adjusting flashboard 10 to abut against the side surface of a runner top brick 5, arranging a sealing top brick 11 at one side, adjusting the height position from the bottom surface of a board to the top surface of the launder bottom brick 9 to be used for adjusting the flow and the flow speed of the microcrystalline glass liquid when flowing through the launder 2, enabling the bottoms of the launder bottom brick 9 and the runner bottom brick 7 to fall on the same backing brick 12, connecting a support frame 13 at the bottom of the backing brick 12, arranging a movable lip brick 3 and a tin bath 4 below the backing brick 13, enabling the glass liquid to flow through the right side surface of the launder bottom brick 9, wherein a temperature control area B is used for secondary temperature control, further enabling the glass liquid to fall on the right inclined surface of the backing brick 13, wherein the temperature control area C is used for carrying out tertiary temperature, the molding is completed in the tin bath 4, the bottom of the tin bath 4 is provided with a pool bottom brick 14, the side wall is provided with a side wall brick 15, the movable lip brick 3 is arranged on the top surface of the side wall brick 15, and the position of the inclined side surface corresponds to the position under the side surface of the launder bottom brick 9.
The structure and function of the safety flashboard 8 and the regulating flashboard 10 are consistent with those of the prior art in the industry, the safety flashboard 8 is used for setting the highest level of the microcrystalline glass liquid when flowing through the flow channel 1 by fixing a proper height position, so that the flow and the flow speed of the glass liquid are effectively controlled, and the overflow risk of the glass liquid can be prevented; the adjusting gate plate 10 is used for adjusting and controlling the flow and flow rate of the microcrystalline glass liquid flowing through the launder 2 by adjusting the height position from the bottom surface of the plate to the top surface of the launder bottom brick 9.
Two wing plates 16 are arranged on two sides of the bottom of the movable lip brick 3, the brick body part of the movable lip brick 3 comprises a top surface 31, a first bottom surface 32, a second bottom surface 33, a left side surface 34 and a right inclined surface 35, the top surface 31, the first bottom surface 32, the second bottom surface 33 and the left side surface 34 are both planes, the first bottom surface 32 is in contact with the side wall brick 15, the second bottom surface 33 is above notches of the side wall brick 15 and the molten tin bath 4, the right inclined surface 35 is positioned above the notch of the molten tin bath 4 and is a downward inclined surface, the joint of the top surface 31 and the right inclined surface 35 is a smooth circular arc surface 36, the joint of the second bottom surface 33 and the right inclined surface 35 is a circular arc surface 37, and the wing plates 16 connect the movable lip brick 3 to the top surface.
Example 3
As shown in fig. 1, a novel forming method of float glass ceramics includes three temperature control means, which are primary temperature control, secondary temperature control and tertiary temperature control, the tertiary temperature control is performed in three corresponding temperature control areas, which are temperature control area a, temperature control area B and temperature control area C, the temperature control area a is located on the upper portion of a launder bottom brick 9, the channel through which the glass ceramics flows is horizontal, the temperature control area B is located on the right side surface of the launder bottom brick 9, the channel through which the glass ceramics flows is vertical, the temperature control area C is located on a right inclined surface 35, and the channel through which the glass ceramics flows is inclined, which includes the following steps: the melted microcrystalline glass liquid flows into the runner from the flashboard through the runner, and then flows into the runner, and passes through the temperature control area A for primary temperature control, and the temperature of the area is kept at 990 ℃; the microcrystalline glass flows into a temperature control area B for secondary temperature control, wherein the launder is in a semi-open state and is cooled by natural breeze at a constant speed; the microcrystalline glass liquid flows to the movable lip brick, flows through the temperature control area C, is subjected to temperature control for three times, and is subjected to aeration cooling in the area, so that the microcrystalline glass liquid is cooled to 300 ℃; and (4) entering a tin bath, and finally naturally cooling the microcrystalline glass liquid in the tin bath to room temperature to finish the forming.
Example 4
As shown in fig. 1, a novel forming method of float glass ceramics includes three temperature control means, which are primary temperature control, secondary temperature control and tertiary temperature control, the tertiary temperature control is performed in three corresponding temperature control areas, which are temperature control area a, temperature control area B and temperature control area C, the temperature control area a is located on the upper portion of a launder bottom brick 9, the channel through which the glass ceramics flows is horizontal, the temperature control area B is located on the right side surface of the launder bottom brick 9, the channel through which the glass ceramics flows is vertical, the temperature control area C is located on a right inclined surface 35, and the channel through which the glass ceramics flows is inclined, which includes the following steps: the melted microcrystalline glass liquid flows into the sluice from the flashboard through the runner, then flows into the launder, passes through the temperature control area A, and is subjected to primary temperature control, and the temperature of the area is kept at 1060 ℃; the microcrystalline glass liquid flows into a temperature control area B for secondary temperature control, the launder is in a full-open state, the launder is ventilated and cooled to 250 ℃; the microcrystalline glass liquid flows to the movable lip brick, flows through the temperature control area C, is subjected to temperature control for three times, and is electrically heated in the area, so that the temperature of the microcrystalline glass liquid reaches 300 ℃; and (4) entering a tin bath, and finally naturally cooling the microcrystalline glass liquid in the tin bath to room temperature to finish the forming.
Example 5
As shown in fig. 1, a novel forming method of float glass ceramics includes three temperature control means, which are primary temperature control, secondary temperature control and tertiary temperature control, the tertiary temperature control is performed in three corresponding temperature control areas, which are temperature control area a, temperature control area B and temperature control area C, the temperature control area a is located on the upper portion of a launder bottom brick 9, the channel through which the glass ceramics flows is horizontal, the temperature control area B is located on the right side surface of the launder bottom brick 9, the channel through which the glass ceramics flows is vertical, the temperature control area C is located on a right inclined surface 35, and the channel through which the glass ceramics flows is inclined, which includes the following steps: the melted microcrystalline glass liquid flows into the sluice from the flashboard through the runner, then flows into the launder, passes through the temperature control area A, and is subjected to primary temperature control, and the temperature of the area is kept at 1100 ℃; the microcrystalline glass flows into a temperature control area B for secondary temperature control, the launder is in a closed state, and the temperature is reduced at a constant speed through natural cooling; the microcrystalline glass liquid flows to the movable lip brick, flows through the temperature control area C, is subjected to temperature control for three times, and is subjected to aeration and cooling in the area, so that the microcrystalline glass liquid is cooled to 450 ℃; and (4) entering a tin bath, and finally cooling the microcrystalline glass liquid in the tin bath to room temperature by water cooling to finish forming.
The flow of the three temperature control areas can be adjusted by adopting a mode of adjusting the flashboard control or controlling the height of the liquid level, so that the flow of the microcrystalline glass liquid is better controlled.
By adopting the novel forming device and the method for the float glass ceramics, the original horizontal fixed runner lip brick structure is changed into a runner and vertical runner and movable lip brick structure, so that the temperature of the runner, the runner and the lip bricks can be independently controlled, the problem of crystallization caused by the temperature problem is effectively solved, the crystallization area can be controlled, the crystallization is easier to process, the problem of production caused by crystallization at the runner lip brick is solved, and meanwhile, the movable lip brick is adopted, the lip brick is convenient to replace after crystallization, and the influence on other structures in the device can not be brought.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (7)
1. The novel forming device of float glass ceramics is characterized by comprising a runner (1), a runner (2), a movable lip brick (3) and a tin bath (4), wherein the top of the runner is provided with a runner crown brick (5), the side wall of the runner is provided with a runner wall brick (6), the bottom of the runner is provided with a runner bottom brick (7), a safety flashboard (8) is inserted in the runner crown brick (5), the safety flashboard (8) penetrates through the runner crown brick (5) and falls into the runner (1), the bottom of the runner (2) is provided with a runner bottom brick (9), the upper part of the runner bottom brick (9) is provided with an adjusting flashboard (10), one side of the adjusting flashboard (10) is abutted against the side surface of the runner crown brick (5), one side of the runner bottom brick is provided with a runner sealing crown brick (11), the runner bottom brick (9) and the bottom of the runner bottom brick (7) are both arranged on the same backing brick (12, the bottom of backing brick (12) is connected with a support frame (13), the below of backing brick (12) is equipped with activity lip brick (3) and molten tin bath (4), the bottom of molten tin bath (4) is equipped with bottom of the pool brick (14), and the lateral wall is equipped with side wall brick (15), establish activity lip brick (3) on the top surface of side wall brick (15), the skew side position corresponds and is in under brick (9) side at the bottom of the chute.
2. The novel forming device of float glass-ceramic according to claim 1, characterized in that the movable lip brick (3) comprises a top surface (31), a first bottom surface (32), a second bottom surface (33), a left side surface (34) and a right inclined surface (35), wherein the top surface (31), the first bottom surface (32), the second bottom surface (33) and the left side surface (34) are all planes, the first bottom surface (32) is in contact with the side wall brick (15), the second bottom surface (33) is above the side wall brick (15) and the notch of the tin bath (4), the right inclined surface (35) is above the notch of the tin bath (4) and is a downward inclined surface, the junction of the top surface (31) and the right inclined surface (35) is a smooth circular arc surface (36), and the junction of the second bottom surface (33) and the right inclined surface (35) is a circular angle surface (37).
3. The novel forming device of float glass-ceramic according to claim 1, characterized in that the top surface of the runner bottom brick (7) is in an upward slope along the flowing direction.
4. The new forming device of float glass-ceramic according to claim 1, characterized in that the launder (2) is in an open or semi-open or closed state.
5. The forming method of the novel forming device of float glass-ceramic according to claim 2, characterized in that the method comprises three temperature control means, namely a primary temperature control means, a secondary temperature control means and a tertiary temperature control means, wherein the tertiary temperature control means is performed in corresponding three temperature control areas, namely a temperature control area A, a temperature control area B and a temperature control area C, the temperature control area A is positioned at the upper part of the launder bottom brick (9), the temperature control area B is positioned at the right side surface of the launder bottom brick (9), and the temperature control area C is positioned at the right inclined surface (35), and the method comprises the following steps:
(1) the melted microcrystalline glass liquid flows into the sluice from the flashboard through the runner, flows into the launder, passes through the temperature control area A, is subjected to primary temperature control, adopts a high-temperature means to control the temperature above the crystallization temperature, and ensures that the area cannot be crystallized;
(2) the microcrystalline glass liquid flows into a temperature control area B, and secondary temperature control is carried out in the area by adopting a natural cooling and air cooling or water cooling method;
(3) and the microcrystalline glass liquid flows to the movable lip brick, flows through the temperature control area C, is subjected to temperature control for three times in the area by adopting an electric heating or air cooling and water cooling mode, so that the microcrystalline glass liquid reaches a temperature suitable for forming, enters a tin bath, and is finally formed in the tin bath.
6. The method as claimed in claim 5, wherein the channel through which the crystallized glass liquid flows in the temperature control region A is horizontal, the channel through which the crystallized glass liquid flows in the temperature control region B is vertical, and the channel through which the crystallized glass liquid flows in the temperature control region C is inclined.
7. The forming method of the novel forming device of the float glass-ceramic, according to the claim 5, is characterized in that the flow of the three temperature control areas can be adjusted by adopting a mode of adjusting a flashboard or controlling the liquid level.
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| CN201910022306.XA CN109437520B (en) | 2019-01-10 | 2019-01-10 | Novel forming device and method for float glass ceramics |
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU487852A1 (en) * | 1974-06-25 | 1982-08-30 | Саратовский Филиал Государственного Научно-Исследовательского Института Стекла | Device for feeding glass mass to bath with molten metal |
| CN107915394A (en) * | 2017-11-30 | 2018-04-17 | 河北省沙河玻璃技术研究院 | A kind of calcium and magnesium aluminium silicon building float glass process devitrified glass material path and its application method |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU487852A1 (en) * | 1974-06-25 | 1982-08-30 | Саратовский Филиал Государственного Научно-Исследовательского Института Стекла | Device for feeding glass mass to bath with molten metal |
| CN107915394A (en) * | 2017-11-30 | 2018-04-17 | 河北省沙河玻璃技术研究院 | A kind of calcium and magnesium aluminium silicon building float glass process devitrified glass material path and its application method |
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Denomination of invention: A new forming device and method for float glass microcrystalline glass Granted publication date: 20210601 Pledgee: Industrial Park Branch of Jiangxi Yifeng Rural Commercial Bank Co.,Ltd. Pledgor: Jiangxi Dingsheng New Material Technology Co.,Ltd. Registration number: Y2024980037218 |
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