CN217103559U - Glass article manufacturing apparatus - Google Patents
Glass article manufacturing apparatus Download PDFInfo
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- CN217103559U CN217103559U CN202090000848.3U CN202090000848U CN217103559U CN 217103559 U CN217103559 U CN 217103559U CN 202090000848 U CN202090000848 U CN 202090000848U CN 217103559 U CN217103559 U CN 217103559U
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- pipe
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- molten glass
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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
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Abstract
A glass article manufacturing apparatus (1) is provided with a transfer pipe (8) for transferring molten Glass (GM) in a state in which a pipe shaft (8b) is provided so as to extend in the lateral direction, and an exhaust pipe (9) joined to the upper portion of the transfer pipe (8), and is configured such that a flange portion (9a) is provided at one end of the exhaust pipe (9), and the flange portion (9a) is joined to the transfer pipe (8).
Description
Technical Field
The utility model relates to a glass article manufacturing device.
Background
As is well known, a glass article represented by a glass plate, a glass tube, or the like is manufactured through various steps such as a melting step of melting a glass raw material to produce a molten glass, a fining step of defoaming bubbles from the molten glass, a homogenizing step of stirring the molten glass to homogenize the molten glass, and a forming step of forming a glass article from the molten glass.
The fining process in the above-described process for producing glass articles is performed as disclosed in patent document 1, for example.
In the embodiment disclosed in this document, a clarification tank is used as a device for performing the clarification step. The clarification tank is provided with: a transfer pipe (finer pipe) for transferring the molten glass; an exhaust pipe (vent pipe) for discharging bubbles (gas) deaerated from the molten glass to the outside of the transfer pipe; and an electrode plate for electrically heating the transport pipe. The transport pipe is provided with a pipe shaft extending in the transverse direction, and the exhaust pipe is connected to the upper part of the transport pipe. A gas phase space is formed above the liquid surface of the molten glass in the transfer pipe. The transport pipe and the exhaust pipe are made of platinum or a platinum alloy.
When the fining process is performed using the fining tank described above, the molten glass flowing in the transfer pipe is heated by energization of the transfer pipe, and bubbles are defoamed from the molten glass into the gas phase space by the action of the fining agent incorporated in the glass raw material. The bubbles (gas) defoamed in the gas phase space are discharged to the outside of the transfer pipe through the gas discharge pipe.
Documents of the prior art
Patent document
Patent document 1: japanese patent laid-open publication No. 2014-028734
SUMMERY OF THE UTILITY MODEL
Problem to be solved by utility model
However, in the apparatus for performing the clarification process, the following problems arise due to the manner of joining the transport pipe and the exhaust pipe.
When the transport pipe is joined to the exhaust pipe, for example, a through hole is provided in the pipe wall of the transport pipe, and after the end of the exhaust pipe is inserted into the through hole, the transport pipe and the exhaust pipe are joined by welding or the like. Specific joining methods of the two pipes include the following methods: as shown in fig. 6, both pipes 100, 200 are joined in a state where the inner wall surface 100a and the end 200a of the exhaust pipe 200 are coplanar so that the end 200a does not protrude from the inner wall surface 100a of the transport pipe 100.
However, in the case of this embodiment, the shape of the edge of the through hole 100b provided in the transport pipe 100 needs to be matched with the shape of the end 200a of the exhaust pipe 200, and thus, high-level processing may be required. For example, when both the transfer pipe 100 and the exhaust pipe 200 have a cylindrical shape, the through hole 100b of the transfer pipe 100 for inserting the end portion 200a of the exhaust pipe 200 is in a state in which the edge portion thereof is three-dimensionally bent, and therefore, it is required to process the end portion 200a of the exhaust pipe 200 so as to match the bending. Such a processing is difficult, and therefore, there is a problem that the equipment cost increases. Further, since it is required to join the edge of the through hole 100b and the end 200a of the exhaust pipe 200 with high accuracy, in order to meet this requirement, it is required to join the two pipes 100 and 200 in a state in which the two pipes 100 and 200 are in close contact with each other. At this time, both the pipes 100 and 200 are deformed, and the strength of the joint 300 of both the pipes 100 and 200 tends to be insufficient. As a result, the joint 300 of the two pipes 100 and 200 is easily broken due to thermal deformation or the like when the clarification process is performed, and the lifetime of the equipment is likely to be shortened.
Therefore, in order to eliminate the above-described problem, as a method of joining the two pipes, as shown in fig. 7, it is conceivable to join the two pipes 100 and 200 in a state where the end 200a of the exhaust pipe 200 protrudes from the inner wall surface 100a of the transport pipe 100.
However, even in the case of this method, there is a difficulty. For example, as in the system disclosed in patent document 1, there are the following difficulties: when a gas phase space is formed in the transfer pipe 100, foreign matter adheres to an end portion 200a of the exhaust pipe 200 protruding from the inner wall surface 100a of the transfer pipe 100, and the foreign matter falling from the end portion 200a is mixed into the molten glass. On the other hand, there are difficulties as follows: when the inside of the transport pipe 100 is filled with molten glass without forming a gas phase space, a region where the flow of molten glass is stagnant is generated immediately upstream of the end 200a of the protruding exhaust pipe 200, and a gas pool that causes platinum to volatilize is generated.
Therefore, it is desired to establish a technique capable of eliminating the above-mentioned problems and difficulties. In view of the above, the technical problem of the present invention is to reduce the cost and prolong the service life of equipment for performing a fining process in manufacturing a glass article, and to prevent the mixing of foreign matter into molten glass, the stagnation of molten glass, and the generation of gas accumulation.
Means for solving the problems
The present invention has been made to solve the above-mentioned problems, and an object of the present invention is to provide a glass article manufacturing apparatus including a transfer pipe for transferring molten glass in a state where a pipe shaft extends in a lateral direction, and an exhaust pipe joined to an upper portion of the transfer pipe, wherein a flange portion is provided at one end of the exhaust pipe, and the flange portion is joined to the transfer pipe.
In the present apparatus, a flange provided at one end of the exhaust pipe is joined to the transfer pipe. That is, as for the joining method of the transport pipe and the exhaust pipe, a method of joining both pipes in a state where the end portion of the exhaust pipe protrudes from the inner wall surface of the transport pipe is not adopted. Since the end portion of the exhaust pipe does not protrude in this manner, even when a gas phase space is formed in the transport pipe, adhesion of foreign matter to the end portion of the exhaust pipe is inevitably avoided, and the foreign matter falling from the end portion is not mixed into the molten glass. On the other hand, even when the transfer pipe is filled with molten glass, the end of the exhaust pipe does not protrude, and therefore stagnation of molten glass and generation of gas pools are unlikely to occur immediately upstream of the end. Further, for example, if the flange portion existing in the exhaust pipe is made slightly larger than the through hole of the transport pipe, the flange portion can be processed in a state of being in close contact with the transport pipe by a low-difficulty process such as grinding and cutting of the flange portion when the transport pipe is joined to the exhaust pipe. This can avoid an increase in equipment cost and reduce the cost. Further, since deformation of both pipes is prevented and the strength of the joint portion of both pipes is sufficiently ensured, the life of the apparatus can be prolonged. As described above, according to the present apparatus, cost reduction and life prolongation of equipment for performing a fining process in manufacturing glass articles can be achieved. In addition, when a gas phase space is formed in the transfer pipe, mixing of foreign matter into the molten glass can be prevented, and when the transfer pipe is filled with the molten glass, stagnation of the molten glass and generation of gas pools can be prevented.
In the above-described configuration, it is preferable that the connection portion constitutes a connection site to the transport pipe and includes a flange portion; and a main body connected to the connection portion, the main body having a wall thickness smaller than that of the transport pipe.
In this way, by making the thickness of the main body portion of the exhaust pipe smaller than the thickness of the transport pipe, the weight of the exhaust pipe can be reduced as much as possible, and deformation of the transport pipe due to the weight of the exhaust pipe can be easily avoided.
In the above configuration, preferably, the connection portion further includes: a cylindrical portion connected to the main body portion; and a bent portion interposed between the flange portion and the cylindrical portion and connecting the flange portion and the cylindrical portion, wherein the exhaust pipe is formed by joining the main body portion and the connecting portion.
In this way, since the exhaust pipe is configured by joining the main body portion and the connecting portion, which are originally manufactured as separate members, to each other, if the main body portion and the connecting portion are made to have different thicknesses, a difference in thickness can be easily provided between the main body portion and the connecting portion. This makes it possible to easily satisfy the relationship between the thickness of the flange portion of the exhaust pipe, the thickness of the body portion, and the thickness of the transport pipe. Further, since the thicknesses of the cylindrical portion, the bent portion, and the flange portion of the connecting portion are substantially the same, the connecting portion can be reliably protected from damage.
In the above-described configuration, the transport pipe and the exhaust pipe may constitute a clarifying tank for removing bubbles from the molten glass.
Further, according to the method for producing a glass article in which the refining step of defoaming bubbles from the molten glass filled in the transfer pipe is performed using the apparatus for producing a glass article, similarly to the apparatus for producing a glass article, cost reduction and life prolongation of equipment for performing the refining step can be achieved. Further, since the end portion of the exhaust pipe does not protrude, stagnation of molten glass and generation of gas pools can be prevented on the immediately upstream side of the end portion.
Effect of the utility model
According to the present invention, cost reduction and life prolongation of an apparatus for performing a clarification process can be achieved when manufacturing glass articles. In addition, when a gas phase space is formed in the transfer pipe, mixing of foreign matter into the molten glass can be prevented, and when the transfer pipe is filled with the molten glass, stagnation of the molten glass and generation of gas pools can be prevented.
Drawings
Fig. 1 is a side view showing a manufacturing apparatus of a glass article.
Fig. 2 is a side view showing the clearing sump.
Fig. 3 is a view schematically showing a manner of joining the transport pipe and the exhaust pipe.
Fig. 4 is a sectional view showing the periphery of the exhaust pipe in the clearing sump.
Fig. 5 is a sectional view showing a modification of the clearing tank.
Fig. 6 is a sectional view for explaining the problem.
Fig. 7 is a sectional view for explaining the problem.
Detailed Description
Hereinafter, an apparatus and a method for manufacturing a glass article according to an embodiment of the present invention will be described with reference to the drawings. In the embodiments described below, a case where a glass plate is manufactured as one example of a glass article will be described. However, the present invention can be applied to the case of manufacturing glass articles other than glass sheets (for example, glass rolls, glass tubes, glass fibers, and the like).
In the execution of the method for producing a glass article (hereinafter, simply referred to as the production method) according to the present embodiment, the apparatus 1 for producing a glass article (hereinafter, simply referred to as the production apparatus 1) shown in fig. 1 is used.
The production apparatus 1 includes a melting tank 2, a clarifying tank 3, a homogenizing tank 4 (stirring tank), a state adjusting tank 5, and a forming apparatus 6 in this order from the upstream side of the flow of molten glass GM which is a raw material of a glass sheet. These devices are connected by glass supply paths 7a to 7 d. The manufacturing apparatus 1 includes, in addition to these devices, an annealing furnace (not shown) for annealing the glass ribbon GR molded by the molding device 6, a cutting device (not shown) for continuously cutting glass plates from the annealed glass ribbon GR, and the like.
In the melting vessel 2, a melting step is performed in which molten glass GM is continuously produced by sequentially melting glass raw materials continuously charged into the vessel. A fining agent (e.g., SnO) used in a fining step described later is mixed with the glass raw material 2 Etc.). The melting vessel 2 is connected to the clarifying vessel 3 through a glass supply channel 7 a.
In the fining tank 3, a fining process is performed in which the molten glass GM supplied from the melting tank 2 is heated and bubbles are defoamed from the molten glass GM by the action of a fining agent or the like. The clarifier 3 is connected to the homogenizer 4 through a glass supply path 7 b.
In the homogenizing tank 4, a homogenizing step is performed in which the molten glass GM is homogenized by stirring the clarified molten glass GM with a stirrer 4a having a stirring blade. The homogenization tank 4 is connected to the state adjustment tank 5 through a glass supply path 7 c.
In the state adjustment tank 5, a state adjustment step of adjusting the temperature (viscosity), flow rate, and the like of the molten glass GM is performed so that the molten glass GM is in a state suitable for forming the glass ribbon GR. The state adjustment tank 5 is connected to the forming device 6 through a glass supply path 7 d.
The forming apparatus 6 performs a forming step of continuously forming a glass ribbon GR from the molten glass GM by an overflow down-draw method. The forming apparatus 6 may form the glass ribbon GR by another forming method such as a slot down draw method, a redraw method, or a float method.
Hereinafter, a specific configuration of the clarifying tank 3 as a facility for performing the clarifying step will be described.
As shown in fig. 2, the clarification tank 3 includes: a transfer pipe 8 for transferring the molten glass GM; an exhaust pipe 9 for discharging bubbles (gas) deaerated from the molten glass GM to the outside of the transfer pipe 8; and a heating unit 10 for heating the transport pipe 8 by energization. The transport pipe 8 and the exhaust pipe 9 are each made of platinum or a platinum alloy. The transport pipe 8 is housed in a refractory (not shown) such as a brick so as to be surrounded by the refractory.
In the present embodiment, the fining step (see fig. 4) is performed in a state where the conveying pipe 8 is filled with the molten glass GM, i.e., in a state where the molten glass GM is in contact with the entire inner wall surface 8a of the conveying pipe 8.
The transport pipe 8 is provided such that a pipe axis 8b extends in the lateral direction (horizontal direction in the present embodiment). The transport pipe 8 has an upstream end connected to the glass supply path 7a and a downstream end connected to the glass supply path 7 b. The exhaust pipe 9 is joined to the upper portion of the transport pipe 8 and projects upward from the transport pipe 8. In order to prevent thermal deformation of the transport pipe 8, a ring-shaped or C-shaped reinforcing member may be provided on the inner wall surface 8 a. Further, a baffle plate may be provided on the inner wall surface 8a in order to stir the molten glass GM.
In the present embodiment, the transport pipe 8 is provided such that the pipe axis 8b extends in the horizontal direction, but the present invention is not limited thereto, and the pipe axis 8b may be inclined within a range of an angle of 30 ° or less with respect to the horizontal plane. In the present embodiment, the single exhaust pipe 9 is joined to the transport pipe 8, but the present invention is not limited thereto. For example, the plurality of exhaust pipes 9 may be joined to the conveying pipe 8 at intervals in the flow direction of the molten glass GM.
The heating units 10 are disposed at the upstream end and the downstream end of the transport pipe 8, respectively. The heating unit 10 includes: a flange 12 provided so as to surround the outer wall surface 8c of the transport pipe 8; and an electrode 13 formed on an upper portion of the flange 12. The heating unit 10 heats the transport pipe 8 by applying a predetermined voltage to the electrode 13. In this way, the refining tank 3 heats the molten glass GM flowing through the transfer pipe 8 to a predetermined temperature (for example, 1300 ℃ to 1500 ℃) when the refining step is performed.
Here, a joining method of the transport pipe 8 and the exhaust pipe 9 will be described.
As shown in fig. 3, the transport pipe 8 is cylindrical. A through hole 8d is formed in an upper portion (top portion in the present embodiment) of the pipe wall of the transport pipe 8. The through-hole 8d has a circular shape when viewed in the direction along the hole axis (which coincides with the radial direction of the transport pipe 8). The edge of the through hole 8d is three-dimensionally curved following the curve of the pipe wall of the transport pipe 8. The exhaust pipe 9 has a cylindrical shape with a flange portion 9a provided at one end.
When the two pipes 8, 9, i.e., the transport pipe 8 and the exhaust pipe 9, are joined, the flange portion 9a of the exhaust pipe 9 is joined to the transport pipe 8.
As preparation for joining the two pipes 8, 9, first, the flange portion 9a of the exhaust pipe 9 is cut with a cutter, or the flange portion 9a of the exhaust pipe 9 is ground with a grinder so that the size of the flange portion 9a matches the size of the through hole 8d of the transport pipe 8. Here, since the dimension of the flange portion 9a is adjusted by reducing the dimension of the flange portion 9a with cutting and grinding, the dimension of the flange portion 9a at the stage before adjustment is made larger than the dimension of the through hole 8d in advance. In addition to the above-described dimension adjustment, the outer peripheral end of the flange portion 9a is adjusted so as to curve along the edge of the three-dimensionally curved through-hole 8d (hereinafter, referred to as curve adjustment).
Thereafter, the flange portion 9a is inserted into the through hole 8d, and the outer peripheral end of the flange portion 9a is abutted against the inner peripheral surface of the through hole 8d, and the pipes 8 and 9 are joined by welding. At this time, as shown in fig. 4, the two pipes 8 and 9 are joined in a state where the inner wall surface 8a of the conveying pipe 8 and the lower surface 9aa (the surface facing the molten glass GM) of the flange portion 9a are aligned in a flush manner so as not to form a step therebetween.
In the present embodiment, both the pipes 8 and 9, i.e., the transport pipe 8 and the exhaust pipe 9, are formed in a cylindrical shape, but the present invention is not limited thereto. At least one of the two pipes 8 and 9 may be formed in another cylindrical shape. In the present embodiment, the transfer pipe 8 is filled with the molten glass GM, but a gas phase space may be formed above the liquid surface of the molten glass GM in the transfer pipe 8. In this case, the through-hole 8d of the transfer pipe 8 need not necessarily be provided at the top of the pipe wall as long as it is located above the liquid surface of the molten glass GM.
As shown in fig. 4, the exhaust pipe 9 is positioned above the liquid surface of the molten glass GM, and the bubbles B (gas) deaerated from the liquid surface pass through the exhaust pipe 9 and are discharged to the outside of the transfer pipe 8. The exhaust pipe 9 includes a connection portion 9x constituting a connection portion with the transport pipe 8 and a cylindrical body portion 9y connected to the connection portion 9 x.
The connecting portion 9x includes, in addition to the flange portion 9a, a cylindrical tubular portion 9b connected to the body portion 9y, and a curved portion 9c interposed between the flange portion 9a and the tubular portion 9b and connecting the flange portion 9a and the tubular portion 9 b. The pipe axis 9d of the exhaust pipe 9 extends in a direction perpendicular to the pipe axis 8b of the transport pipe 8. The connection portion 9x is produced as follows: the bent portion 9c and the flange portion 9a are formed by bending the end portions of the cylindrical member.
The inner diameter of the cylindrical portion 9b is the same as the inner diameter of the main body portion 9 y. Thus, no step is formed between the inner peripheral surface of the cylindrical portion 9b and the inner peripheral surface of the main body portion 9y, and the two surfaces are aligned in a coplanar manner. The connection portion 9x and the body portion 9y are both 9x and 9y joined by welding.
The bent portion 9c is bent in a state of being smoothly continuous with both the flange portion 9a and the cylindrical portion 9 b. The function of the bent portion 9c is to deform the bent portion 9c (change the R of the bent portion 9 c) during the size adjustment and the bending adjustment of the flange portion 9a, thereby facilitating the size adjustment and the bending adjustment.
The thickness T1 of the connecting portion 9x including the flange portion 9a, the cylindrical portion 9b, and the bent portion 9c is thicker than the thickness T2 of the body portion 9 y. Incidentally, the bent portions 9c of the flange portion 9a, the cylindrical portion 9b, and the bent portion 9c inevitably become thinner (for example, about 10% thinner) in association with the above-described bending process for forming the flange portion 9a and the bent portion 9 c. Therefore, the wall thickness T1 at the stage before the bending is selected in advance so that the magnitude relationship between the wall thickness T1 and the wall thickness T2 does not change before and after the bending.
The thickness T1 of the flange 9a of the exhaust pipe 9 is thicker than the thickness T3 of the transport pipe 8. However, the thickness T1 may be the same as the thickness T3, or the thickness T1 may be thinner than the thickness T3. When the thickness T1 of the flange part 9a is equal to or greater than the thickness T3 of the transfer pipe 8, the resistance between the pipe wall of the transfer pipe 8 and the flange part 9a becomes equal, or the resistance of the flange part 9a becomes smaller than the pipe wall of the transfer pipe 8. Therefore, when the energization heating is performed during the clarification step, excessive heat generation of the flange portion 9a can be easily avoided, which is advantageous in preventing damage to the equipment. In the case where the thickness T1 is made thicker than the thickness T3 as in the present embodiment, the upper limit of the thickness T1 may be set to 2 times the thickness T3, for example, in order to prevent insufficient heat generation of the flange 9a during the energization heating that is associated with the clarification step.
The wall thickness T2 of the main body 9y of the exhaust pipe 9 is thinner than the wall thickness T3 of the transport pipe 8. Here, when the thickness T2 is too thin, the strength of the exhaust pipe 9 is insufficient, so the lower limit value of the thickness T2 is preferably half (0.5 times) the thickness T3 from the viewpoint of preventing the strength from being insufficient.
The following describes the main operation and effects of the manufacturing apparatus 1 and the manufacturing method described above.
In the manufacturing apparatus 1 described above, the flange 9a provided at one end of the exhaust pipe 9 is joined to the transport pipe 8. In this way, the structure in which the end of the exhaust pipe 9 protrudes from the inner wall surface 8a of the transport pipe 8 is not adopted. Therefore, stagnation of the molten glass GM and generation of gas pools cannot be caused immediately upstream of the end of the protruding exhaust pipe 9. Further, since the flange portion 9a is processed in a state of being in close contact with the transport pipe 8 by a low-difficulty process (cutting, grinding), an increase in equipment cost can be avoided, and cost reduction can be achieved. Further, the deformation of the two pipes 8 and 9 at the time of joining can be prevented. This ensures sufficient strength of the joint between the two pipes 8 and 9, and also makes it possible to extend the life of the apparatus.
In addition, according to the above-described manufacturing apparatus 1 and manufacturing method, even when a gas phase space is formed above the liquid surface of the molten glass GM in the transfer pipe 8, unlike in the above-described embodiment, the following operation and effect can be obtained. That is, since the end of the exhaust pipe 9 does not protrude from the inner wall surface 8a of the transfer pipe 8, the adhesion of foreign matter to the end of the exhaust pipe 9 is inevitably avoided, and the foreign matter falling from the end is not mixed into the molten glass GM.
Here, the apparatus and method for manufacturing a glass article according to the present invention are not limited to the configurations and modes described in the above embodiments. For example, in the above-described embodiment, the two pipes 8 and 9 are joined by welding in a state where the flange portion 9a of the exhaust pipe 9 is inserted into the through hole 8d of the transport pipe 8 and the outer peripheral end of the flange portion 9a is abutted against the inner peripheral surface of the through hole 8 d. However, for example, as shown in fig. 5, the two pipes 8 and 9 may be joined by welding in a state where the flange portion 9a is along the edge of the through hole 8d and the flange portion 9a is overlapped on the transport pipe 8.
In the above embodiment, the transport pipe 8 constitutes the clarification tank 3, but is not limited thereto. For example, instead of constituting the clarifying tank 3, the glass supply paths 7a to 7d may be constituted.
In the above-described embodiment, the connection portion 9x is formed by bending the end portion of a cylindrical member to form the bent portion 9c and the flange portion 9a, for example, but the invention is not limited thereto. For example, the connection portion 9x may be manufactured by bending an inner circumferential end portion of an annular plate-shaped member to form a bent portion and a cylindrical barrel portion.
Description of the reference numerals
1 manufacturing apparatus
3 clarifying tank
8 transport pipe
8b pipe shaft of transport pipe
9 exhaust pipe
9a flange part
9b cylindrical part
9c bend
9x connection part
9y main body part
B bubbles
GM molten glass
Wall thickness of T1 connection part (thickness of flange part)
Wall thickness of T2 body
T3 wall thickness of transfer tube.
Claims (4)
1. A glass article manufacturing apparatus includes a transfer pipe for transferring molten glass in a state where a pipe axis extends in a lateral direction, and an exhaust pipe joined to an upper portion of the transfer pipe,
it is characterized in that the preparation method is characterized in that,
a flange portion is provided at one end of the exhaust pipe,
the flange portion is engaged with the take-off pipe.
2. The glass article manufacturing apparatus according to claim 1,
the exhaust pipe is provided with: a connecting portion that constitutes a connecting portion to the transport pipe and includes the flange portion; and a main body portion connected to the connection portion,
the body portion has a wall thickness smaller than that of the transport pipe.
3. The glass article manufacturing apparatus according to claim 2,
the connecting portion further includes: a cylindrical portion connected to the main body portion; and a bending portion interposed between the flange portion and the cylindrical portion and connecting both the flange portion and the cylindrical portion,
the exhaust pipe is configured by joining the body portion and the connecting portion.
4. The apparatus for manufacturing glass article according to any one of claims 1 to 3,
the transport pipe and the exhaust pipe constitute a clarifying tank for defoaming bubbles from molten glass.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2019191016A JP7375454B2 (en) | 2019-10-18 | 2019-10-18 | Glass article manufacturing equipment and manufacturing method |
| JP2019-191016 | 2019-10-18 | ||
| PCT/JP2020/035067 WO2021075199A1 (en) | 2019-10-18 | 2020-09-16 | Device and method for producing glass article |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217103559U true CN217103559U (en) | 2022-08-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202090000848.3U Active CN217103559U (en) | 2019-10-18 | 2020-09-16 | Glass article manufacturing apparatus |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JP7375454B2 (en) |
| CN (1) | CN217103559U (en) |
| WO (1) | WO2021075199A1 (en) |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4835138B1 (en) * | 1970-07-22 | 1973-10-26 | ||
| JP2003136239A (en) * | 2001-10-29 | 2003-05-14 | Katsuyuki Omura | Branched stainless steel tube, manufacturing method thereof, and application method thereof |
| JP2006305587A (en) * | 2005-04-27 | 2006-11-09 | Kobe Steel Ltd | Method for expanding end part of tubular material made of aluminum |
| JP2015160799A (en) * | 2014-02-28 | 2015-09-07 | ＡｖａｎＳｔｒａｔｅ株式会社 | Glass plate-manufacturing apparatus, and glass plate-manufacturing method |
| JP6752036B2 (en) * | 2016-03-31 | 2020-09-09 | ＡｖａｎＳｔｒａｔｅ株式会社 | Glass substrate manufacturing method and glass substrate manufacturing equipment |
| JP7273372B2 (en) * | 2018-01-29 | 2023-05-15 | 日本電気硝子株式会社 | Glass article manufacturing method and its manufacturing apparatus |
-
2019
- 2019-10-18 JP JP2019191016A patent/JP7375454B2/en active Active
-
2020
- 2020-09-16 WO PCT/JP2020/035067 patent/WO2021075199A1/en active Application Filing
- 2020-09-16 CN CN202090000848.3U patent/CN217103559U/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| JP2021066614A (en) | 2021-04-30 |
| JP7375454B2 (en) | 2023-11-08 |
| WO2021075199A1 (en) | 2021-04-22 |
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