CN103359914B - The manufacture method of glass plate and manufacture device - Google Patents
The manufacture method of glass plate and manufacture device Download PDFInfo
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- CN103359914B CN103359914B CN201310062962.5A CN201310062962A CN103359914B CN 103359914 B CN103359914 B CN 103359914B CN 201310062962 A CN201310062962 A CN 201310062962A CN 103359914 B CN103359914 B CN 103359914B
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- conveying pipe
- finer
- calciner
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- glass
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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
- C03B18/18—Controlling or regulating the temperature of the float bath; Composition or purification of the float bath
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- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B5/00—Melting in furnaces; Furnaces so far as specially adapted for glass manufacture
- C03B5/16—Special features of the melting process; Auxiliary means specially adapted for glass-melting furnaces
- C03B5/225—Refining
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B25/00—Annealing glass products
- C03B25/04—Annealing glass products in a continuous way
- C03B25/06—Annealing glass products in a continuous way with horizontal displacement of the glass products
- C03B25/08—Annealing glass products in a continuous way with horizontal displacement of the glass products of glass sheets
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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
- C03B5/235—Heating the glass
-
- 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
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Glass Melting And Manufacturing (AREA)
- Joining Of Glass To Other Materials (AREA)
Abstract
The present invention relates to glass plate manufacture method and manufacture device, its object is to provide can not use welding wait and the reduction of erection time and can suppress conveying pipe and the deformation of finer, bending, breakage etc. glass plate manufacture method and manufacture device.In the manufacture method of the glass plate manufacturing glass plate of the present invention, before making the operation of melten glass, the conveying pipe at least using platinum or platinum alloy to constitute is heated, when making above-mentioned conveying pipe thermal expansion, by the end abutment of a side end of above-mentioned conveying pipe Yu calciner, by the end abutment of the end side of above-mentioned conveying pipe Yu above-mentioned finer.Above-mentioned calciner, above-mentioned conveying pipe and above-mentioned finer respective abutting end are cooled externally from pipe, above-mentioned end makes the melten glass entering in the space being between above-mentioned end by above-mentioned end cool and solidify, so that above-mentioned calciner is formed as the stream of melten glass with above-mentioned conveying pipe and above-mentioned finer.
Description
[technical field]
The present invention relates to manufacture the manufacture method of the glass plate of glass plate and manufacture device.
[background technology]
When manufacturing glass plate, frit is melted in calciner and makes melten glass, afterwards melten glass is clarified in finer, be plate glass by the melten glass (such as using formed body to shape) after clarification.The melten glass made in calciner is sent in finer by conveying pipe.
About above-mentioned conveying pipe and finer, it is known to the conveying pipe being made up of platinum or platinum alloy and finer.(patent documentation 1).
It addition, in the manufacture method of glass plate, calciner is connected with conveying pipe and finer, further ensure that finer, later until the stream for being made the melten glass till the forming device of plate glass by melten glass, starts the manufacture of glass plate afterwards.Now, the conveying pipe being made up of platinum or platinum alloy and finer are warmed up to 1 more than thousand Baidu, thus thermal expansion occurs.Further, owing to conveying pipe and finer are fixed between calciner and forming device and assemble, conveying pipe is restricted along the thermal expansion of the flow direction of melten glass with finer, has born compression stress on conveying pipe and finer.Its result, conveying pipe deforms with finer, bends, and then may be damaged.
It addition, in recent years, in order to reduce carrying capacity of environment, in most cases use SnO2The harmful As in the past used is replaced as clarifier as clarifier2O3。SnO2It is effective from the standpoint of reducing carrying capacity of environment, but in order to effectively give play to clarification function, needs the temperature of melten glass is set higher than As2O3The temperature of situation.Thus, owing at high temperature heating melten glass, thus the heating-up temperature of conveying pipe and finer also uprises, and compared with the past, the thermal expansion of conveying pipe and finer becomes big.
Thus, increasingly it is expected to after manufacture starts prevent conveying pipe from finer, breakage occurring due to thermal expansion.
Additionally, in the case of the conveying pipe being made up of platinum or platinum alloy being used in the manufacture of glass plate at the most higher temperature, platinum or the crystal grain of platinum alloy is generated in conveying pipe, when there is intercrystalline corrosion to the thickness of conveying pipe in this crystal grain-growth, a part for conveying pipe comes off, and melten glass may spill.
In order to suppress this platinum or the growth of platinum alloy crystal grain, use the strengthening platinum that is dispersed in platinum or platinum alloy of the metal oxide particle such as aluminium oxide or zirconium oxide or strengthening platinum alloy.But, strengthening platinum or strengthening platinum alloy are difficult to relax the compression stress having an effect, thus compared with common platinum or platinum alloy, have the easily problem of breakage due to thermal expansion.
I.e., when using, in conveying pipe and finer, the strengthening platinum being dispersed with metal oxide particle in platinum or platinum alloy, compared with common platinum or platinum alloy, it is easier to damaged due to thermal expansion, thus is preferably prevented from owing to manufacturing the breakage caused by the thermal expansion after starting.
[prior art literature]
[patent documentation]
Patent documentation 1: Japanese Unexamined Patent Application Publication 2008-539162 publication
[summary of the invention]
[inventing problem to be solved]
Therefore, it is an object of the invention to provide the manufacture method of glass plate and manufacture device, it can suppress conveying pipe and the deformation of finer, bending, breakage etc..
[solving the means of problem]
One mode of the present invention is the manufacture method of the glass plate manufacturing glass plate.This manufacture method includes following operation:
In calciner, dissolve frit make the operation of melten glass；
The operation that the melten glass made in above-mentioned calciner is transported in finer by above-mentioned calciner by conveying pipe；
The operation that the melten glass being supplied in above-mentioned finer by above-mentioned conveying pipe is clarified；And
Melten glass after clarification is formed the operation of plate glass.
Before making the operation of above-mentioned melten glass, the conveying pipe at least using platinum or platinum alloy to constitute is heated, when making above-mentioned conveying pipe thermal expansion, make a side end of above-mentioned conveying pipe and the end abutment of above-mentioned calciner, make the end side of above-mentioned conveying pipe and the end abutment of above-mentioned finer.
Above-mentioned calciner, above-mentioned conveying pipe and above-mentioned finer respective abutting end are cooled externally from pipe, above-mentioned end makes the melten glass entering in the space being between above-mentioned end by above-mentioned end cool and solidify, so that above-mentioned calciner is formed as the stream of melten glass with above-mentioned conveying pipe and above-mentioned finer.
Thus, when above-mentioned calciner defines, with above-mentioned conveying pipe and above-mentioned finer, the stream that melten glass will not spill, under thermal expansion state, above-mentioned conveying pipe abuts with above-mentioned calciner and above-mentioned finer and is attached, thus can suppress above-mentioned conveying pipe and the deformation of above-mentioned finer, bending, breakage etc..Further, due to above-mentioned calciner and above-mentioned conveying pipe and above-mentioned finer do not use weld (welding) in the case of be attached, thus the assembling of device can be simplified.
Now, preferably it is provided around heat insulating member in above-mentioned conveying pipe and above-mentioned finer, it is cooled externally outside the above-mentioned end of an above-mentioned side end of above-mentioned conveying pipe, the above-mentioned end side of above-mentioned conveying pipe and above-mentioned finer is projected into above-mentioned heat insulating member and from pipe, melten glass, when above-mentioned calciner flows to above-mentioned conveying pipe and above-mentioned finer, will go into the melten glass cooling and solidifying in above-mentioned space.
Therefore, it can be readily formed in the case of not using welding from above-mentioned calciner to above-mentioned conveying pipe, the stream that will not spill to the melten glass of above-mentioned finer further.
Additionally, it is preferred that the above-mentioned end of an above-mentioned side end of above-mentioned conveying pipe, the above-mentioned end side of above-mentioned conveying pipe and above-mentioned finer is respectively formed Flange-shaped Parts.
Owing to the both ends of above-mentioned conveying pipe and the end of above-mentioned finer are all formed as Flange-shaped Parts, thus the temperature around the space existed between the end abutted is sufficiently reduced to the degree that makes melten glass cool and solidify.Therefore, the melten glass entered in the space between the end being present in abutting can positively be cooled and solidified.
It addition, dispersibled metal oxide particle in the platinum or platinum alloy of above-mentioned conveying pipe.That is, above-mentioned conveying pipe can use strengthening platinum or the strengthening platinum alloy of dispersing metal oxides granule in platinum or platinum alloy.Strengthening platinum or strengthening platinum alloy are generally of the characteristic being difficult to relax stress.But, in above-mentioned manufacture method, owing to making above-mentioned conveying pipe abut be attached with above-mentioned calciner and above-mentioned finer under thermal expansion state, thus the thermal stress acting on strengthening platinum or strengthening platinum alloy due to thermal expansion is minimum.Therefore, above-mentioned conveying pipe and the deformation of above-mentioned finer, bending, breakage etc. can be suppressed.
Above-mentioned melten glass preferably comprises SnO2As clarifier.With As2O3Compare, SnO2It is favourable from the standpoint of reducing carrying capacity of environment.With the As used as clarifier all the time2O3Compare, SnO2Clarifying effect poor, thus in order to effectively give play to clarifying effect, and use As2O3Situation compare, needing the temperature making melten glass is higher temperature.Must be heated to the high temperature of such as more than 1650 DEG C.Therefore, the heating-up temperature of above-mentioned conveying pipe and above-mentioned finer uprises.But, in the manufacture method of aforesaid way, it is contemplated that the thermal expansion of above-mentioned conveying pipe and above-mentioned finer carries out the assembling of device, even if thus life-time service also can suppress above-mentioned conveying pipe and the deformation of above-mentioned finer, bending, breakage etc..
Additionally, it is preferred that before the heating of above-mentioned conveying pipe, be provided with gap between an above-mentioned side end and the above-mentioned end of above-mentioned calciner of above-mentioned conveying pipe and between the above-mentioned end side of above-mentioned conveying pipe and the above-mentioned end of above-mentioned finer；Thermal expansion caused by above-mentioned heating makes above-mentioned gap all disappear, and an above-mentioned side end of above-mentioned conveying pipe is abutted with the above-mentioned end of above-mentioned calciner, the above-mentioned end side of above-mentioned conveying pipe is abutted with the above-mentioned end of above-mentioned finer.Therefore, above-mentioned conveying pipe and the deformation of above-mentioned finer, bending, breakage etc. can be suppressed.Further, since the abutting method of this end does not use welding, thus the assembling of device can be simplified.
Or can be before the heating of above-mentioned conveying pipe, being provided with gap between an above-mentioned side end and the above-mentioned end of above-mentioned calciner of above-mentioned conveying pipe and between the above-mentioned end side of above-mentioned conveying pipe and the above-mentioned end of above-mentioned finer, above-mentioned gap is remaining after the heating of above-mentioned conveying pipe and above-mentioned finer.In this case, by making through above-mentioned heating, the above-mentioned conveying pipe of thermal expansion moves and by making above-mentioned finer move towards above-mentioned conveying pipe towards above-mentioned calciner, and an above-mentioned side end of above-mentioned conveying pipe is abutted with the above-mentioned end of above-mentioned calciner, the above-mentioned end side of above-mentioned conveying pipe is abutted with the above-mentioned end of above-mentioned finer.
Therefore, above-mentioned conveying pipe and the deformation of above-mentioned finer, bending, breakage etc. can be suppressed.Especially because above-mentioned conveying pipe abuts with above-mentioned calciner and above-mentioned finer when abundant thermal expansion, thus can significantly suppress above-mentioned conveying pipe and the deformation of above-mentioned finer, bending, breakage etc..
It addition, in the abutting method of this end, it is not necessary to consider that the thermal expansion of above-mentioned conveying pipe and above-mentioned finer, to arrange above-mentioned gap, can extremely easily carry out the assembling of device.
Further, the another way of the present invention is the manufacture method of the glass plate manufacturing glass plate.In the method, following operation is included in the same manner as aforesaid way:
In calciner, dissolve frit make the operation of melten glass；
The operation that the melten glass made in above-mentioned calciner is transported in finer by calciner by conveying pipe；
The operation that the melten glass being supplied in above-mentioned finer by above-mentioned conveying pipe is clarified；And
Melten glass after clarification is formed the operation of plate glass.
Now, before making the operation of above-mentioned melten glass, respectively at least using platinum or the finer of platinum alloy composition and at least using the conveying pipe of platinum or platinum alloy composition to heat, when making above-mentioned conveying pipe and above-mentioned finer thermal expansion, by a side end and the end abutment of the treatment trough being connected to above-mentioned calciner of above-mentioned conveying pipe, by the end abutment of the end side of above-mentioned conveying pipe Yu above-mentioned finer.
Further, when melten glass flows to above-mentioned conveying pipe and above-mentioned finer from above-mentioned calciner, it is connected to the above-mentioned treatment trough of above-mentioned calciner, above-mentioned conveying pipe and the respective end of above-mentioned finer be cooled externally from pipe, above-mentioned end will go into the melten glass cooling and solidifying in the space between the above-mentioned end being in abutting, so that above-mentioned treatment trough is formed as the stream of melten glass with conveying pipe and above-mentioned finer.
In this approach, when above-mentioned treatment trough defines, with above-mentioned conveying pipe and above-mentioned finer, the stream that melten glass will not spill, under thermal expansion state, above-mentioned conveying pipe abuts with above-mentioned treatment trough and above-mentioned finer and is attached, thus also can suppress above-mentioned conveying pipe and the deformation of above-mentioned finer, bending, breakage etc..Further, due to above-mentioned treatment trough and above-mentioned conveying pipe and above-mentioned finer do not use weld in the case of be attached, thus the assembling of device can be simplified.
Further, the another mode of the present invention is the manufacture device of the glass plate manufacturing glass plate.This manufacture device includes:
Calciner, frit is melted and makes melten glass by this calciner；
Conveying pipe, the melten glass made in above-mentioned calciner is transferred out from above-mentioned calciner by this conveying pipe, and this conveying pipe at least uses platinum or platinum alloy to constitute；And
Finer, this finer is clarified for the melten glass supplied by above-mentioned conveying pipe.
Above-mentioned conveying pipe is pre-heated and thermal expansion, and in this condition, a side end of above-mentioned conveying pipe is abutted with the end of above-mentioned calciner, the end side of above-mentioned conveying pipe is abutted with the end of above-mentioned finer.
Above-mentioned calciner, above-mentioned conveying pipe and above-mentioned finer respective abutting end are cooled externally from pipe, the melten glass cooling and solidifying that above-mentioned end will be entered into by above-mentioned end in the space being between above-mentioned end, so that above-mentioned calciner is formed as the stream of melten glass with above-mentioned conveying pipe and above-mentioned finer.
So, when above-mentioned calciner defines, with above-mentioned conveying pipe and above-mentioned finer, the stream that melten glass will not spill, under thermal expansion state, above-mentioned conveying pipe abuts with above-mentioned calciner and above-mentioned finer and is attached, thus can suppress above-mentioned conveying pipe and the deformation of above-mentioned finer, bending, breakage etc..Further, due to above-mentioned calciner and above-mentioned conveying pipe and above-mentioned finer do not use weld in the case of be attached, thus can carry out manufacturing the assembling of device the reduction of erection time.
The most preferably before the heating of above-mentioned conveying pipe, between an above-mentioned side end and the above-mentioned end of above-mentioned calciner of above-mentioned conveying pipe and between the above-mentioned end side of above-mentioned conveying pipe and the above-mentioned end of above-mentioned finer, it is provided with gap；Thermal expansion caused by above-mentioned heating makes above-mentioned gap all disappear, and an above-mentioned side end of above-mentioned conveying pipe is abutted with the above-mentioned end of above-mentioned calciner, the above-mentioned end side of above-mentioned conveying pipe is abutted with the above-mentioned end of above-mentioned finer.Therefore, above-mentioned conveying pipe and the deformation of above-mentioned finer, bending, breakage etc. can be suppressed.Further, in assembling, do not use welding owing to manufacturing device, thus the assembling of device can be simplified.
The most preferably before the heating of above-mentioned conveying pipe, being provided with gap between an above-mentioned side end and the above-mentioned end of above-mentioned calciner of above-mentioned conveying pipe and between the above-mentioned end side of above-mentioned conveying pipe and the above-mentioned end of above-mentioned finer, above-mentioned gap is remaining after the heating of above-mentioned conveying pipe and above-mentioned finer；By making through above-mentioned heating, the above-mentioned conveying pipe of thermal expansion moves and by making above-mentioned finer move towards above-mentioned conveying pipe towards above-mentioned calciner, and an above-mentioned side end of above-mentioned conveying pipe is abutted with the above-mentioned end of above-mentioned calciner, the above-mentioned end side of above-mentioned conveying pipe is abutted with the above-mentioned end of above-mentioned finer.
Therefore, above-mentioned conveying pipe and the deformation of above-mentioned finer, bending, breakage etc. can be suppressed.Especially because above-mentioned conveying pipe abuts with above-mentioned calciner and above-mentioned finer when abundant thermal expansion, thus can significantly suppress above-mentioned conveying pipe and the deformation of above-mentioned finer, bending, breakage etc..
It addition, in this manufacture device, it is not necessary to consider that the thermal expansion of above-mentioned conveying pipe and above-mentioned finer, to arrange above-mentioned gap, can extremely easily carry out the assembling of device.
[effect of invention]
Utilize the manufacture method of aforesaid way and manufacture device, conveying pipe and the deformation of finer, bending, breakage etc. can be suppressed.It is possible to further do not use welding etc., make engineering simplification.
[accompanying drawing explanation]
Fig. 1 is the figure of an example of the operation illustrating present embodiment method for manufacturing glass substrate.
Fig. 2 is the schematic diagram of an example of the melting operation illustrating and carrying out present embodiment～the device cutting off operation.
Fig. 3 be present embodiment glass plate manufacture method in glass supply pipe and finer explanatory diagram of state before heating when assembling.
Fig. 4 is the glass supply pipe shown in Fig. 3 and the explanatory diagram of finer state after the heating.
Fig. 5 be other embodiment glass plate manufacture method in glass supply pipe and finer explanatory diagram of state before heating when assembling.
Fig. 6 is the glass supply pipe in assembling shown in Fig. 5 and the explanatory diagram of finer state after the heating.
[explanation of symbol]
100 fusing devices
101 melt groove
101a flow export
101b end
101d hopper
102 defecators
102a, 104a, 104b end
103 agitator tanks
103a agitator
104,105,106 glass supply pipes
104c pipe extension
112 finer unit
112a, 114a alundum cement
112b, 114b heat insulating member
114 conveying pipe units 114
200 forming devices
210 formed bodies
300 shearing devices
[detailed description of the invention]
Manufacture method and manufacture device to glass plate of the present invention are described in detail below.Fig. 1 is the figure of an example of the operation illustrating present embodiment method for manufacturing glass substrate.
(the overall summary of the manufacture method of glass substrate)
The manufacture method of glass substrate mainly has melting operation (ST1), clarification operation (ST2), the operation that homogenizes (ST3), supply step (ST4), forming process (ST5), Slow cooling operation (ST6) and cuts off operation (ST7).Additionally there is grinding process, grinding step, matting, inspection operation, bale packing operation etc., bale packing operation has carried out 2 of stacking and has been transported at the staff of recipient with top glass substrate.
Melt operation (ST1) to carry out in calciner.In calciner, make melten glass by being put into the liquid level of the melten glass being accumulated in calciner and carry out heating by frit.Further, making melten glass flow export 101a operation downstream towards flow, flow export 101a is from the bottom being arranged on calciner inside side walls.
The heating of the melten glass of calciner has and carries out, by electric power circulation in melten glass self and self-heat generation, the method that heats, and additionally may utilize burner secondarily provides flame to make frit melt.It should be noted that be added with clarifier in frit.SnO is had as clarifier is known2、As2O3、Sb2O3Deng, there is no particular restriction.But, from the standpoint of reducing carrying capacity of environment, SnO is preferably used2(stannum oxide) is as clarifier.
Clarification operation (ST2) is at least carried out in finer.In clarification operation, by the melten glass in finer is heated up, make in melten glass contained containing O2、CO2Or SO2Bubble absorption by clarifier reduction reaction produce O2And grow up, bubble floating is released to the liquid level of melten glass.Further, in clarification operation, made the reducing substances generation oxidation reaction obtained by the reduction reaction of clarifier by the temperature reducing melten glass.Thus, remaining in the melten glass O in bubble2Be subsequently reabsorbed in melten glass etc. gas componant, bubble collapse.Oxidation reaction based on clarifier and reduction reaction are to be carried out by the temperature controlling melten glass.It should be noted that clarification operation is used as vacuum deaerator mode, in this vacuum deaerator mode, finer forms the space of reduced atmosphere, make bubble present in melten glass grow up under reduced atmosphere and make its deaeration.In this case, it is effective from the standpoint of never using clarifier.It should be noted that in clarification operation, use the defecation method that stannum oxide is used as clarifier.
In the operation that homogenizes (ST3), using agitator to be stirred the melten glass in agitator tank, the melten glass in agitator tank is the pipe arrangement by extending from finer and carries out supplying, and thus carries out homogenizing of glass ingredient.Thereby, it is possible to reduce the reason glass composition inequality of brush line etc..
In supply step (ST4), melten glass is supplied to forming device by the pipe arrangement extended from agitator tank.
Operation (ST5) and Slow cooling operation (ST6) is formed in forming device.
In forming process (ST5), molten glass into plate glass, make the fluid (flowing) of plate glass.Shape and use overflow downdraw.
In Slow cooling operation (ST6), shape the plate glass of flowing according to forming desired thickness, the mode of internal modification will not be produced, cool down further according to the mode not producing warpage.
In cutting off operation (ST7), forming device the plate glass supplied is cut into specific length by shearing device, thus obtains the glass plate of tabular.Glass plate after cutting off cuts into given size further, makes the glass substrate of target size.Afterwards, carrying out the grinding of glass substrate end face, grinding, carry out the cleaning of glass substrate, after checking for the abnormal defects such as bubble further, the glass plate of inspection certified products packs as end article.
Fig. 2 is the schematic diagram of an example of melting operation (ST1) illustrating and carrying out present embodiment～the device for producing glass sheet cutting off operation (ST7).As in figure 2 it is shown, this device mainly has fusing device 100, forming device 200 and shearing device 300.Fusing device 100 has calciner 101, finer 102, agitator tank 103 and glass supply pipe 104,105,106.
In fusing device 101 shown in Fig. 2, hopper (バ ケ ッ ト) 101d is made to carry out the input of frit.In finer 102, adjust the temperature of melten glass MG, utilize the redox reaction of clarifier to carry out the clarification of melten glass MG.Further, in agitator tank 103, agitator 103a is utilized to be stirred making it homogenize to melten glass MG.In forming device 200, carried out the shaping of plate glass SG by melten glass MG by the overflow downdraw of use formed body 210.
It should be noted that in fig. 2, glass supply pipe 104 is the conveying pipe for being connected with finer 102 by calciner 101, but glass supply pipe 104 can also be for the conveying pipe for being connected with finer 102 by the treatment trough being connected to calciner 101.As treatment trough, the most following treatment trough can be enumerated: it supplies oxygen in melten glass, make the temperature of melten glass MG reduce simultaneously, make clarifier absorb a part for above-mentioned oxygen.
(assembling of the device for producing glass sheet of the 1st embodiment)
The assembling that the assembling of device for producing glass sheet, the treatment trough especially for calciner 101 or being connected to above-mentioned calciner 101 and glass supply pipe 104 and finer 102 below illustrates.
Fig. 3 is at the calciner 101 of present embodiment or to be connected to treatment trough 110 enterprising oozy glass supply pipe 104 and the explanatory diagram of assembling of finer 102 of calciner 101.
Below for glass being supplied pipe 104 and finer 102 is assemblied in the example of calciner 101 and illustrates, in the case of glass being supplied pipe 104 and finer 102 is assemblied in treatment trough 110, process similarly, thus the description thereof will be omitted.
Calciner 101 may utilize the refractory body materials such as refractory brick (refractory body レ Application ガ) and stores melten glass MG, it carries out brickwork at the scene that manufactures according to having the lower groove mode with upper groove, this lower groove is provided with the electrode that melten glass carries out electrified regulation, and on this, groove utilizes burner etc. that gas phase is carried out heating to make high-temperature atmosphere.
On the other hand, glass supply pipe 104, in middle making such as factories, is moved to manufacture scene.Similarly, finer 102, in middle making such as factories, is moved to manufacture scene.Now, for glass supply pipe 104 and the configuration of finer 102, in view of glass being supplied pipe 104, further finer 102 being heated to set point of temperature (such as more than 1000 DEG C), i.e. in view of glass supply pipe 104 and then the thermal expansion of finer 102, as it is shown on figure 3, the end of calciner 101, glass the supply both ends of pipe 104, the end of finer 102 configure according to the mode abutted the most in advance.In present embodiment, carry out the heating of calciner 101 when the heating of glass supply pipe 104 and finer 102 the most simultaneously.
In present embodiment, to glass supply pipe 104 and then finer 102 and calciner 101 are carried out heating assemble, but also individually glass supply pipe 104 can be heated or heats glass supply pipe 104 and finer 102, make the both ends that there occurs the glass supply pipe 104 of thermal expansion assemble with the end of calciner 101 and the end abutment of finer 102.
Fig. 3 shows the bottom of calciner 101 and a part for sidewall.
Relative to the end, specifically of the flow export of this calciner 101, relative to the end 101b of the melten glass MG flow export 101a of sidewall, the end 104a of glass supply pipe 104 is disconnected and does not abuts.Glass supply pipe 104 is made up of platinum or platinum alloy.Glass supply pipe 104 can be made up of strengthening platinum or strengthening platinum alloy rather than platinum or platinum alloy.Strengthening platinum or strengthening platinum alloy are for be dispersed with Al in platinum or platinum alloy2O3、ZrO2Or Y2O3Deng the material of metal oxide particle, the growth of the crystal grain such as its suppression platinum, it can solve the part of problem glass supply pipe 104 that had when using platinum or platinum alloy and fall off due to crystal grain-growth and intercrystalline corrosion, make melten glass MG spill.
Glass supply pipe 104 oxidized aluminum cement 114a is coated to, and piling up outside it has the heat insulating member 114b such as refractory brick, forms conveying pipe unit 114.That is, glass supply pipe 104 be provided around heat insulating member 114b.
It addition, the both ends 104a, 104b of glass supply pipe 104 form Flange-shaped Parts, it is projected into outside heat insulating member 114b.The both ends 104a, 104b of present embodiment define Flange-shaped Parts, but as long as both ends 104a, 104b can cool down outside pipe, it is also possible to be not Flange-shaped Parts.
Finer 102 is made up of platinum or platinum alloy.Glass supply pipe 104 can be made up of strengthening platinum or strengthening platinum alloy rather than platinum or platinum alloy.Strengthening platinum or the growth of the strengthening platinum alloy suppression crystal grain such as platinum, glass supply pipe 104 partial exfoliation that can solve had when using platinum or platinum alloy makes the problem that melten glass spills etc.Finer 102 is provided with not shown opening, and this opening is by the gas phase in finer 102 inner space and pipe ft connection.
Strengthening platinum or the growth of the strengthening platinum alloy suppression crystal grain such as platinum, from the standpoint of never there is the problem that glass supply pipe 104 partial exfoliation makes melten glass spill etc, be preferably used for glass by strengthening platinum or strengthening platinum alloy and supply pipe 104 and finer 102.
Finer 102 oxidized aluminum cement 112a is coated to, and piling up outside it has the heat insulating member 112b such as refractory brick, forms finer unit 112.That is, it is provided around heat insulating member 112b in finer 102.
It addition, the end 102a of finer 102 forms Flange-shaped Parts, it is projected into outside heat insulating member 112b.
Finer 102 with 102a opposition side, end end (not shown) and end 102a be as composition, the available method identical with present embodiment is attached, it is possible to use welding or special welding to be connected with glass supply pipe 105 (with reference to Fig. 2) as existing.
For such conveying pipe unit 114 and finer unit 112, as mentioned above, it is configured at manufacture scene, so that the end of calciner 101, glass supply pipe 104 and finer 102 just can be against each other after the heating of set point of temperature issues heat expansion.That is, configure according between the end 101b of flow export 101a and the end 104a of glass supply pipe 104 of the melten glass MG of calciner 101 and setting apertured mode between the end 104b and the end 102a of finer 102 of glass supply pipe 104.
In this condition, for calciner 101, conveying pipe unit 114 and finer unit 112, by not shown heater being energized from outside or the not shown thermode that adds being located at around glass supply pipe 104 and finer 102 being energized, by calciner 102, glass supply pipe 104 and then finer 102 can be heated to set point of temperature.Now, due to glass supply pipe 104 and then thermal expansion produced by finer 102 (lateral arrows in Fig. 3), the gap between gap and end 104b and end 102a between end 101b and end 104a all disappears, and end 101b abuts with end 104a, end 104b abuts with end 102a.It goes without saying that, the conveying pipe unit 114 including glass supply pipe 104 can be heated or to including the conveying pipe unit 114 of glass supply pipe 104 and can also include that the finer unit 112 of finer 102 heats by above-mentioned heating alone as described above.
So by after against each other to calciner 101, glass supply pipe 104 and each end of finer 102, when the condition of high temperature of calciner 101, conveying pipe unit 114 and finer unit 112 is maintained, in calciner 101, put into frit, utilize not shown burner and electrode to make frit melt, make melten glass MG.
Fig. 4 is the explanatory diagram of the assembling state after the heating of glass supply pipe 104 and finer 102, makes each end against each other by the thermal expansion caused by heating.
In this condition, flow export 101a is open, and the melten glass MG being held in calciner 101 starts to glass supply pipe 104 from flow export 101a and then flows to finer 102.Now, melten glass MG is such as warming up to 1500 DEG C～1700 DEG C by being located at the not shown heater of glass supply pipe 104 and finer 102.It should be noted that the end 104a of the end 101b of calciner 101 and glass supply pipe 104 is the state that mutually abuts, the end 104b and the end 102a of finer 102 of glass supply pipe 104 is the mutual state abutted.Therefore, the end of abutting there are little space to each other.But, when melten glass MG passes through the end abutted, melten glass MG enters in above-mentioned space.On the other hand, owing to being not provided with heat insulating material 114b, 112b and end 104a in the end abutted, 104b, 102a are Flange-shaped Parts, thus compared with the other parts of pipe, the end of this abutting is prone to be cooled externally from pipe.Therefore, enter into the easily cooled solidification of the melten glass MG in above-mentioned space, fill above-mentioned space.It is consequently formed from calciner 101 to glass supply pipe 104 and then the stream to finer 102, i.e. forms the stream that melten glass MG will not spill.
The most in the present embodiment, in order to manufacture glass plate, at least glass supply pipe 104 was heated before making the operation of melten glass MG, when glass supply pipe 104 thermal expansion by each end abutment.Further, melten glass MG from calciner 101 to flowing glass supply pipe 104 and finer 102 time, owing to each end is cooled externally from pipe, thereby through each end and enter between end the cooled solidification of the melten glass MG in existing space.Thus, calciner 101 forms, with glass supply pipe 104 and finer 102, the stream that melten glass MG will not spill.Therefore, can suppress to be formed glass supply pipe 104 and the deformation of finer 102, bending, the breakage etc. of stream.
In the past, glass supply pipe and finer are moved to set the scene of device for producing glass sheet after the other place of factory etc. makes, and weld at this scene, thus carry out calciner and manage with conveying and the assembling of finer, be connected.But, at the scene of device for producing glass sheet, welding surroundings is strict, carry out situation about welding with in factory etc. compared with, need to take a long time, it is difficult to carry out the simplification of site setup.From this side considerations, owing to not using welding in the device of present embodiment, thus the assembling manufacturing device can be simplified.
It addition, in the present embodiment, being arranged around heat insulating member 112b, 114b in glass supply pipe 104 and finer 102, each end is to heat insulating member 112b, prominent outside 114b.Prominent by each end, each end is cooled externally from pipe, enters into the cooled solidification of melten glass MG in space (being present between the end of abutting).Therefore, in the case of using welding unlike existing mode, from calciner 101 to glass supply pipe 104, further to finer 102, the stream that melten glass MG will not spill can be readily formed.
It addition, in the present embodiment, owing to the both ends 104a, 104b of glass supply pipe 104 and the end 102a of finer 102 are respectively formed Flange-shaped Parts, thus the temperature around space is sufficiently reduced to the degree that makes melten glass MG cool and solidify.Therefore, enter between the end of abutting the melten glass MG in existing space can positively be cooled solidification.
Further, it is as noted previously, as in the connection of present embodiment glass supply pipe 104 and finer 102 and does not use welding, thus platinum or platinum alloy can use strengthening platinum or the strengthening platinum alloy being dispersed with metal oxide particle.The growth of the crystal grain such as strengthening platinum or strengthening platinum alloy suppression platinum, solves the problem that glass supplies pipe 104 partial exfoliation, melten glass spills, thus glass supply pipe 104 and finer 102 can life-time service.And, owing to when there occurs thermal expansion, glass supply pipe 104 abuts be attached with calciner 101 and finer 102, even if thus strengthening platinum or strengthening platinum alloy have the characteristic being difficult to relax the thermal stress produced due to thermal expansion, it is possible to suppression glass supply pipe 104 and the deformation of finer 102, bending, breakage etc..Further, owing to carrying out welding unlike existing mode to assemble device, thus can keep strengthening platinum or the suppression of strengthening platinum alloy crystal grain-growth, this inhibitory action was lost owing to welding in the past.
(assembling of the device for producing glass sheet of the 2nd embodiment)
Fig. 5 is the figure of the assembling of explanation the 2nd embodiment, carries out the assembling different from the assembling of the 1st embodiment device for producing glass sheet in the assembling of the 2nd embodiment.Fig. 5 shows calciner 101, conveying pipe unit 114 and finer unit 112.Constituting of calciner 101 shown in Fig. 5, conveying pipe unit 114 and finer unit 112 is identical with the composition in the 1st embodiment, in the composition of the 2nd embodiment, for the part corresponding with each several part of the 1st embodiment, is assigned to same-sign in Figure 5.Thus omit the explanation about these parts.
In the assembling of the 2nd embodiment, compared with the situation of the assembling with the 1st embodiment, conveying pipe unit 114 is different with the allocation position of finer unit 112.
It addition, conveying pipe unit 114 and finer unit 112 possess the composition that can move relative to calciner 101.Specifically, the respective bottom at conveying pipe unit 114 and finer unit 112 arranges roller 114c and roller 114c, this roller 114c and roller 114c and may move the chassis (bed) at the scene of manufacture.
Specifically, before the heating of calciner 101, glass supply pipe 104 and finer 102, between a side end 104a and the end 101b of calciner 101 of glass supply pipe 104 and between end side 104b and the end 102a of finer 102 of glass supply pipe 104, it is provided with gap.
In this condition, for calciner 101, conveying pipe unit 114 and finer unit 112, by not shown heater being energized from outside or the not shown thermode that adds being located at around glass supply pipe 104 and finer 102 being energized, glass can be supplied pipe 104 and finer 102 is heated to set point of temperature (such as more than 1000 DEG C).But, the above-mentioned gap before heating also has largely remaining after glass supply pipe 104 and finer 102 heating.Fig. 6 is the figure of the state after explanation the 2nd embodiment glass supply pipe 104 and finer 102 heating.In Fig. 6, remaining has gap Z1,Z2。
Conveying pipe unit 114 includes the glass supply pipe 104 of the thermal expansion due to heating, conveying pipe unit 114 uses not shown drive mechanism to make roller 114c roll, make it move towards calciner 101, thus make the end 104a of glass supply pipe 104 abut with the end 101b of calciner 101.Further, the finer unit 112 including finer 101 carrys out rolling roller 112c by not shown drive mechanism so that it is moving towards glass supply pipe 104, thus the end 104b of glass supply pipe 104 is abutted with the end 102a of finer 102.
It goes without saying that, the conveying pipe unit 114 including glass supply pipe 104 can be heated or to including the conveying pipe unit 114 of glass supply pipe 104 and can also include that the finer unit 112 of finer 102 heats by above-mentioned heating alone as described above.
So by after against each other to calciner 101, glass supply pipe 104 and each end of finer 102, when the condition of high temperature of calciner 101, conveying pipe unit 114 and finer unit 112 is maintained, in calciner 101, put into frit, make frit melt by not shown burner and electrode, make melten glass MG.
In this condition, flow export 101a is open, and the melten glass MG in calciner 101 flows out from flow export 101a, and melten glass MG starts to flow in glass supply pipe 104 and finer 102.Now, the heater being located at glass supply pipe 104 and finer 102 is used melten glass MG to be heated, so that melten glass MG reaches 1500 DEG C～1700 DEG C.When melten glass MG passes through the abutting end of calciner 101, conveying pipe unit 114 and finer unit 112, melten glass MG enters in space existing between the end of abutting.On the other hand, due at the end 104a, 104b abutted, 102a is not provided with heat insulating material 114b, 112b and end 104a, 104b, 102a is Flange-shaped Parts (Off ラ Application ジ shape), thus compared with the other parts of pipe, the end of this abutting is prone to outside pipe cool down.Therefore, enter into the easily cooled solidification of the melten glass MG in above-mentioned space, fill above-mentioned space.It is consequently formed the stream that will not spill from calciner 101 to glass supply pipe 104 and then the melten glass MG to finer 102.
Thus, in the 2nd embodiment, in a same manner as in the first embodiment, owing to the glass of cooling and solidifying has filled the space between the end being present in abutting, thus calciner 101 also form, with glass supply pipe 104 and finer 102, the stream that melten glass MG will not spill.Therefore glass can be suppressed to supply pipe 104 and the deformation of finer 102, bending, breakage etc..Further, owing to device manufacture not using welding, thus the assembling manufacturing device can be simplified.Particularly in the 2nd embodiment, owing to need not consider that glass supply pipe 104 and the thermal expansion of finer 102 arrange gap at calciner 102, between glass supply pipe 104 and the end of finer 102, thus the assembling of device can be made the simplest.Additionally, in the 2nd embodiment, at least glass supply pipe 104 is against each other in the state bottom of thermal expansion abundant by heating, thus in the manufacture of glass plate, more effectively suppresses glass to supply pipe 104 and the deformation of finer 102, bending, breakage etc. than the 1st embodiment.
It addition, in the 2nd embodiment, being arranged around heat insulating member 112b, 114b in glass supply pipe 104 and finer 102, each end is prominent outside heat insulating member 112b, 114b.Prominent due to this each end, each end, by the outside cooling of pipe, enters into the cooled solidification of the melten glass MG in the space existed in each end abutted.Therefore, in the case of not using welding, the stream supplying pipe 104 from calciner 101 to glass, will not spilling to the melten glass MG of finer 102 can be readily formed.
It addition, in the 2nd embodiment, owing to the both ends 104a, 104b of glass supply pipe 104 and the end 102a of finer 102 are all formed as Flange-shaped Parts, thus the temperature around space also can be sufficiently reduced to the degree that makes melten glass MG cool and solidify.Therefore, the melten glass MG during end can will go into the space existed in the end abutted positively cools and solidifies.
Further, in the 2nd embodiment, owing to the connection of glass supply pipe 104 and finer 102 the most not using welding, thus platinum or platinum alloy can use strengthening platinum or the strengthening platinum alloy being dispersed with metal oxide particle.The growth of the crystal grain such as strengthening platinum or strengthening platinum alloy suppression platinum, it is possible to resolve the problem that glass supply pipe 104 partial exfoliation, melten glass spill, thus glass supply pipe 104 and finer 102 can life-time service.
(application of glass)
In the 1st embodiment and the 2nd embodiment, owing to carrying out the assembling of device for producing glass sheet when glass supply pipe 104 and finer 102 thermal expansion, thus the glass that viscosity is high can be used.That is, even if glass high for viscosity being heated to carry out the high temperature of the degree of the clarification (deaeration) in melten glass, it is possible to life-time service, without there is glass supply pipe 104 and the deformation of finer 102, bending, breakage etc..The glass that so-called viscosity is high, the such as viscosity at melten glass is 102.5Temperature during poise is more than 1500 DEG C (for example, more than 1500 DEG C less than 1650 DEG C), more preferably more than 1550 DEG C (for example, more than 1550 DEG C less than 1650 DEG C), more preferably more than 1600 DEG C (for example, more than 1600 DEG C less than 1650 DEG C).
1st embodiment and the 2nd embodiment are suitable to manufacture the flat pannel display glass plate forming TFT (thin film transistor (TFT), ThinFilmTransistor) on a glass.In flat pannel display glass plate, owing to TFT is formed as glass plate-like, thus use alkali-free glass or trace alkali-containing glass.Described below about alkali-free glass and trace alkali-containing glass.This alkali-free glass or trace alkali-containing glass it is entirely free of alkali metal component or has contained only trace alkali metal component, thus being the melten glass that viscosity is high.Therefore, be suitable to the 1st embodiment of the high melten glass of viscosity and the 2nd embodiment is suitable for the manufacture of flat pannel display glass plate.
In the case of 1st embodiment and the 2nd embodiment are applied to the flat pannel display glass plate such as LCDs or organic el display panel, can exemplify by have following glass composition come hybrid glass raw material.Following % represents quality %.
Alkali-free glass containing following composition:
SiO2: 50～70%,
Al2O3: 0～25%,
B2O3: 1～15%,
MgO:0～10%,
CaO:0～20%,
SrO:0～20%,
BaO:0～10%,
RO:5～30% (wherein R is the total amount of Mg, Ca, Sr and Ba).
It should be noted that be alkali-free glass in present embodiment, but glass substrate can also be containing trace alkali-metal trace alkali-containing glass.Containing in the case of alkali-metal, preferably contained R '2O adds up to less than more than 0.10% 0.5%, is preferably less than more than 0.20% 0.5% (wherein, R ' is at least one in Li, Na and K, is the composition contained by glass substrate).R’2The total of O can certainly be less than 0.10%.
It addition, apply glass substrate of the present invention manufacture method in the case of, modulated () frit so that glass composition in addition to above-mentioned each composition possibly together with SnO2: 0.01%～1% (preferably 0.01%～0.5%), Fe2O3: 0～0.2% (preferably 0.01%～0.08%), it is contemplated that carrying capacity of environment so that it is contain substantially no As2O3、Sb2O3And PbO.
It addition, the supply source of above-mentioned RO can use nitrate or carbonate.It should be noted that for the oxidisability improving melten glass, more preferably to be suitable for the ratio of technique to use nitrate as RO supply source.
Further, in addition to the aforementioned ingredients, in glass used in the glass plate of present embodiment, for glass being carried out various physics, melted, clarification and the regulation of forming characteristic, it is also possible to containing other oxides various.As the example of other oxide such, following substances (being not limited to following substances): SnO can be enumerated2、TiO2、MnO、ZnO、Nb2O5、MoO3、Ta2O5、WO3、Y2O3And La2O3.Herein, in the 1st embodiment and the 2nd embodiment, in melten glass MG, preferably comprise SnO2As clarifier.From the standpoint of reducing carrying capacity of environment, SnO2As compared to above-mentioned strong toxicity2O3It is favourable.It addition, the flat pannel display glass plate such as LCDs, organic el display panel is due to particularly severe to the requirement of bubble in glass plate, thus among above-mentioned oxide, preferably at least contain the SnO that clarifying effect is big2。
With the As used as clarifier all the time2O3Compare, SnO2Clarifying effect poor, thus in order to effectively give play to clarifying effect, it is necessary to the temperature of melten glass MG is heated to the high temperature of such as more than 1650 DEG C.Accompanying with this, glass supply pipe 104 and finer 102 also have to be heated to high temperature.But, in the 1st embodiment and the 2nd embodiment, owing to considering that glass supply pipe 104 and the thermal expansion of finer 102 have carried out the assembling of device for producing glass sheet, even if thus at high temperature life-time service, it is possible to suppression glass supply pipe 104 and the deformation of finer 102, bending, breakage etc..That is, SnO is being used2In the case of clarifier, the 1st embodiment and the 2nd embodiment can use well.
Manufacture method and manufacture device to glass plate of the present invention have been described in detail above, but the present invention is not limited to above-mentioned embodiment, it goes without saying that, can carry out various improvement and deformation without departing from the spirit and scope of the present invention.
It should be noted that about the size in gap, the gap between in the 1st embodiment, calciner 101 and glass supply pipe 104 without particular limitation of, for example, 10～50mm；Glass supply pipe 104 and finer 102 between gap without particular limitation of, for example, 10～100mm.These gaps are different always according to the glass supply pipe 104 after composition glass supply pipe 104 and the material (platinum, platinum alloy also have many types) of finer 102, glass supply pipe 104 and the size of finer 102, heating and the difference of the temperature of finer 102.It addition, in the 2nd embodiment, after thermal expansion remaining gap Z1, Z2 without particular limitation of, such as 5～300mm.
It addition, space refers to, after making it expand by heated transfer line, finer, even if calciner abuts, with conveying pipe, conveying pipe, the space also remained with finer；Gap refers to, has a mind to the gap arranged, make it expand the space arranged before by heated transfer line, finer.It is however noted that, about gap Z1,Z2, claim 7 and 11 describes after making conveying pipe, finer thermal expansion, remaining gap.After this thermal expansion, the gap of remaining refers to, even if conveying pipe and finer etc. specially make the space of its remaining in the way of not abutting after thermal expansion.
Claims (11)
1. a manufacture method for glass plate, the method is characterized in that, it includes following operation:
In calciner, dissolve frit make the operation of melten glass；
The melten glass made in described calciner is utilized the operation that conveying pipe is transported in finer by described calciner；
The operation that the melten glass utilizing described conveying pipe to be supplied in described finer is clarified；And
Melten glass after clarification is formed the operation of plate glass,
Before making the operation of described melten glass, the conveying pipe at least using platinum or platinum alloy to constitute is heated, when making described conveying pipe thermal expansion, by the end abutment of a side end of described conveying pipe Yu described calciner, by the end abutment of the end side of described conveying pipe Yu described finer；
Described calciner, described conveying pipe and described finer respective abutting end are cooled externally from pipe, the melten glass cooling and solidifying that described end will be entered into by described end in the space being between described end, so that described calciner forms the stream of melten glass with described conveying pipe and described finer.
2. the manufacture method of glass plate as claimed in claim 1, wherein,
Described conveying pipe and described finer be arranged around heat insulating member；
It is cooled externally outside the described end of a described side end of described conveying pipe, the described end side of described conveying pipe and described finer is projected into described heat insulating member and from pipe, melten glass is when described calciner flows to described conveying pipe and described finer, and the described end of a described side end of described conveying pipe, the described end side of described conveying pipe and described finer will go into the melten glass cooling and solidifying in described space.
3. the manufacture method of glass plate as claimed in claim 2, wherein, the described end of a described side end of described conveying pipe, the described end side of described conveying pipe and described finer is respectively formed Flange-shaped Parts.
4. the manufacture method of the glass plate as described in any one of claims 1 to 3, wherein, is dispersed with metal oxide particle in the platinum or platinum alloy of described conveying pipe.
5. the manufacture method of the glass plate as described in any one of claims 1 to 3, wherein, described melten glass contains SnO2As clarifier.
6. the manufacture method of the glass plate as described in any one of claims 1 to 3, wherein, before the heating of described conveying pipe, gap is set between a described side end and the described end of described calciner of described conveying pipe and between the described end side and the described end of described finer of described conveying pipe；Thermal expansion caused by described heating makes described gap all disappear, a described side end of described conveying pipe and the described end abutment of described calciner, the described end side of described conveying pipe and the described end abutment of described finer.
7. the manufacture method of the glass plate as described in any one of claims 1 to 3, wherein,
Before the heating of described conveying pipe, arranging gap between a described side end and the described end of described calciner of described conveying pipe and between the described end side and the described end of described finer of described conveying pipe, described gap is remaining after the heating of described conveying pipe and described finer；
By making through described heating, the described conveying pipe of thermal expansion moves and by making described finer move towards described conveying pipe towards described calciner, so that a described side end of described conveying pipe and the described end abutment of described calciner, the described end side of described conveying pipe and the described end abutment of described finer.
8. a manufacture method for glass plate, the method is characterized in that, it includes following operation:
In calciner, dissolve frit make the operation of melten glass；
The melten glass made in described calciner is utilized the operation that conveying pipe is transported in finer by described calciner；
The operation that the melten glass utilizing described conveying pipe to be supplied in described finer is clarified；And
Melten glass after clarification is formed the operation of plate glass,
Before making the operation of described melten glass, the conveying pipe at least using platinum or platinum alloy to constitute is heated, when making described conveying pipe thermal expansion, by the end abutment of a side end of described conveying pipe with the treatment trough being connected to described calciner, by the end abutment of the end side of described conveying pipe Yu described finer；
Described treatment trough, described conveying pipe and described finer respective abutting end are cooled externally from pipe, the melten glass cooling and solidifying that described end will be entered into by described end in the space being between described end, so that described treatment trough forms the stream of melten glass with described conveying pipe and described finer.
9. the manufacture device of a glass plate, it is characterised in that this manufacture device includes:
Calciner, frit is melted and makes melten glass by this calciner；
Conveying pipe, the melten glass made in described calciner is transferred out from described calciner by this conveying pipe, and this conveying pipe at least uses platinum or platinum alloy to constitute；And
Finer, this finer carries out the clarification of the melten glass by the supply of described conveying pipe,
Described conveying pipe is pre-heated and thermal expansion, under this thermal expansion state, and a side end of described conveying pipe and the end abutment of described calciner, the end side of described conveying pipe and the end abutment of described finer；
Described calciner, described conveying pipe and described finer respective abutting end are cooled externally from pipe, the melten glass cooling and solidifying that described end will be entered into by described end in the space being between described end, so that described calciner forms the stream of melten glass with described conveying pipe and described finer.
10. the manufacture device of glass plate as claimed in claim 9, wherein, before the heating of described conveying pipe, gap is set between a described side end and the described end of described calciner of described conveying pipe and between the described end side and the described end of described finer of described conveying pipe；Thermal expansion caused by described heating makes described gap all disappear, a described side end of described conveying pipe and the described end abutment of described calciner, the described end side of described conveying pipe and the described end abutment of described finer.
The manufacture device of 11. glass plates as claimed in claim 9, wherein,
Before the heating of described conveying pipe, arranging gap between a described side end and the described end of described calciner of described conveying pipe and between the described end side and the described end of described finer of described conveying pipe, described gap is remaining after the heating of described conveying pipe and described finer；
By making through described heating, the described conveying pipe of thermal expansion moves and by making described finer move towards described conveying pipe towards described calciner, so that a described side end of described conveying pipe and the described end abutment of described calciner, the described end side of described conveying pipe and the described end abutment of described finer.
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| JPJP2012-087964 | 2012-04-06 | ||
| JP2012087964A JP5731438B2 (en) | 2012-04-06 | 2012-04-06 | Glass plate manufacturing method and manufacturing apparatus |
| JP2012-087964 | 2012-04-06 |
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| JP (1) | JP5731438B2 (en) |
| KR (1) | KR101488076B1 (en) |
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| CN1948196A (en) * | 2006-09-30 | 2007-04-18 | 河南安彩高科股份有限公司 | Method and equipment for improving glass quality |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109205997A (en) * | 2017-06-30 | 2019-01-15 | 安瀚视特控股株式会社 | The manufacturing method and glass substrate manufacturing device of glass substrate |
Also Published As
| Publication number | Publication date |
|---|---|
| JP5731438B2 (en) | 2015-06-10 |
| JP2013216535A (en) | 2013-10-24 |
| TW201343581A (en) | 2013-11-01 |
| KR101488076B1 (en) | 2015-01-29 |
| CN103359914A (en) | 2013-10-23 |
| KR20130113974A (en) | 2013-10-16 |
| TWI478882B (en) | 2015-04-01 |
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