CN105143124B - Device for producing glass sheet and glass plate manufacturing method - Google Patents
Device for producing glass sheet and glass plate manufacturing method Download PDFInfo
- Publication number
- CN105143124B CN105143124B CN201480023415.9A CN201480023415A CN105143124B CN 105143124 B CN105143124 B CN 105143124B CN 201480023415 A CN201480023415 A CN 201480023415A CN 105143124 B CN105143124 B CN 105143124B
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- Prior art keywords
- carbon film
- glass
- roller
- component
- molten tin
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- 239000011521 glass Substances 0.000 title claims abstract description 109
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 20
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 119
- 229910052799 carbon Inorganic materials 0.000 claims abstract description 109
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 claims abstract description 75
- 239000002245 particle Substances 0.000 claims abstract description 15
- 238000006124 Pilkington process Methods 0.000 claims abstract description 10
- 238000000034 method Methods 0.000 claims description 11
- 229910002804 graphite Inorganic materials 0.000 claims description 10
- 239000010439 graphite Substances 0.000 claims description 10
- 238000002844 melting Methods 0.000 claims description 10
- 230000008018 melting Effects 0.000 claims description 10
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 7
- 229910052784 alkaline earth metal Inorganic materials 0.000 claims description 6
- 239000000203 mixture Substances 0.000 claims description 6
- -1 alkaline earth metal carbonate Chemical class 0.000 claims description 5
- 230000003746 surface roughness Effects 0.000 claims description 4
- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 claims description 3
- 239000003513 alkali Substances 0.000 claims description 3
- 229910052936 alkali metal sulfate Inorganic materials 0.000 claims description 3
- 239000010419 fine particle Substances 0.000 claims description 3
- 239000000377 silicon dioxide Substances 0.000 claims description 3
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 2
- 239000001301 oxygen Substances 0.000 claims description 2
- 229910052760 oxygen Inorganic materials 0.000 claims description 2
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 claims 1
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 claims 1
- 239000004411 aluminium Substances 0.000 claims 1
- 229910052782 aluminium Inorganic materials 0.000 claims 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims 1
- 229910052796 boron Inorganic materials 0.000 claims 1
- 230000007547 defect Effects 0.000 abstract description 12
- 230000015572 biosynthetic process Effects 0.000 abstract description 5
- 238000000137 annealing Methods 0.000 description 14
- 239000012298 atmosphere Substances 0.000 description 14
- RVTZCBVAJQQJTK-UHFFFAOYSA-N oxygen(2-);zirconium(4+) Chemical compound [O-2].[O-2].[Zr+4] RVTZCBVAJQQJTK-UHFFFAOYSA-N 0.000 description 10
- 229910001928 zirconium oxide Inorganic materials 0.000 description 10
- 239000007789 gas Substances 0.000 description 8
- 238000002310 reflectometry Methods 0.000 description 7
- 239000000919 ceramic Substances 0.000 description 6
- 238000011144 upstream manufacturing Methods 0.000 description 6
- 239000000463 material Substances 0.000 description 5
- 239000000155 melt Substances 0.000 description 5
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 4
- 239000002585 base Substances 0.000 description 4
- 239000011261 inert gas Substances 0.000 description 4
- 239000012299 nitrogen atmosphere Substances 0.000 description 4
- 229910052582 BN Inorganic materials 0.000 description 3
- PZNSFCLAULLKQX-UHFFFAOYSA-N Boron nitride Chemical compound N#B PZNSFCLAULLKQX-UHFFFAOYSA-N 0.000 description 3
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 3
- 239000000428 dust Substances 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 230000001590 oxidative effect Effects 0.000 description 3
- 238000002360 preparation method Methods 0.000 description 3
- 238000007493 shaping process Methods 0.000 description 3
- XOLBLPGZBRYERU-UHFFFAOYSA-N tin dioxide Chemical compound O=[Sn]=O XOLBLPGZBRYERU-UHFFFAOYSA-N 0.000 description 3
- 229910001887 tin oxide Inorganic materials 0.000 description 3
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 2
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 2
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 2
- MCMNRKCIXSYSNV-UHFFFAOYSA-N Zirconium dioxide Chemical compound O=[Zr]=O MCMNRKCIXSYSNV-UHFFFAOYSA-N 0.000 description 2
- 230000015556 catabolic process Effects 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 238000006731 degradation reaction Methods 0.000 description 2
- 239000005357 flat glass Substances 0.000 description 2
- 229910052757 nitrogen Inorganic materials 0.000 description 2
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- GSJBKPNSLRKRNR-UHFFFAOYSA-N $l^{2}-stannanylidenetin Chemical compound [Sn].[Sn] GSJBKPNSLRKRNR-UHFFFAOYSA-N 0.000 description 1
- 150000001342 alkaline earth metals Chemical class 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- HSFWRNGVRCDJHI-UHFFFAOYSA-N alpha-acetylene Natural products C#C HSFWRNGVRCDJHI-UHFFFAOYSA-N 0.000 description 1
- 229910052786 argon Inorganic materials 0.000 description 1
- 238000003556 assay Methods 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- GVEHJMMRQRRJPM-UHFFFAOYSA-N chromium(2+);methanidylidynechromium Chemical compound [Cr+2].[Cr]#[C-].[Cr]#[C-] GVEHJMMRQRRJPM-UHFFFAOYSA-N 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 239000006063 cullet Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 125000002534 ethynyl group Chemical group [H]C#C* 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000007667 floating Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 125000004435 hydrogen atom Chemical class [H]* 0.000 description 1
- 230000002706 hydrostatic effect Effects 0.000 description 1
- 238000011835 investigation Methods 0.000 description 1
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 1
- 150000004767 nitrides Chemical class 0.000 description 1
- VDGJOQCBCPGFFD-UHFFFAOYSA-N oxygen(2-) silicon(4+) titanium(4+) Chemical compound [Si+4].[O-2].[O-2].[Ti+4] VDGJOQCBCPGFFD-UHFFFAOYSA-N 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 230000001629 suppression Effects 0.000 description 1
- 229910003470 tongbaite Inorganic materials 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B40/00—Preventing adhesion between glass and glass or between glass and the means used to shape it, hold it or support it
- C03B40/02—Preventing adhesion between glass and glass or between glass and the means used to shape it, hold it or support it by lubrication; Use of materials as release or lubricating compositions
- C03B40/027—Apparatus for applying lubricants to glass shaping moulds or tools
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B18/00—Shaping glass in contact with the surface of a liquid
- C03B18/02—Forming sheets
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B35/00—Transporting of glass products during their manufacture, e.g. hot glass lenses, prisms
- C03B35/14—Transporting hot glass sheets or ribbons, e.g. by heat-resistant conveyor belts or bands
- C03B35/16—Transporting hot glass sheets or ribbons, e.g. by heat-resistant conveyor belts or bands by roller conveyors
- C03B35/167—Transporting hot glass sheets or ribbons, e.g. by heat-resistant conveyor belts or bands by roller conveyors specially adapted for removing defect sheets, ribbons or parts thereof
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B35/00—Transporting of glass products during their manufacture, e.g. hot glass lenses, prisms
- C03B35/14—Transporting hot glass sheets or ribbons, e.g. by heat-resistant conveyor belts or bands
- C03B35/16—Transporting hot glass sheets or ribbons, e.g. by heat-resistant conveyor belts or bands by roller conveyors
- C03B35/18—Construction of the conveyor rollers ; Materials, coatings or coverings thereof
- C03B35/181—Materials, coatings, loose coverings or sleeves thereof
Abstract
Roller is attached to the present invention provides through the foreign matters such as the molten tin brought into from glass tape are suppressed, caused device for producing glass sheet and glass plate manufacturing method the defects of so as to suppress the glass tape as caused by the foreign matter for being attached to roller.It is a feature of the present invention that, using by melten glass being poured into molten tin bath 18 and in the device for producing glass sheet 12 of the float glass process manufactured, by making roller 22,30 Elastic Contacts of the glass tape 16 in melt temperature scope of the carbon film formation component 24 comprising the toner body that particle diameter is below 100nm with conveying the tin pulled out from molten tin bath 18 and in the molten tin bath 18, so as to form carbon film on roller 22,30 surfaces.
Description
Technical field
It the present invention relates to the use of the manufacture of the glass plate of float glass process, more particularly to the molten tin by suppressing to bring into from glass tape
Runner is attached to Deng foreign matter, caused glass the defects of so as to suppress the glass tape as caused by the foreign matter for being attached to runner
Board manufacturing apparatus and glass plate manufacturing method.
Background technology
For the glass plates such as panel for construction glass, automobile using plate glass and plate glass for display, it is desirable to
Further high-quality and cost degradation.High-quality and the factor of cost degradation is hindered to have a variety of, molten tin bath (floating throwing
Kiln) the molten tin tin, the tin-oxide etc. that are attached to glass plate and generate turn into problem situation it is much.
The manufacture method of glass plate based on float glass process is following preparation method：Melten glass is supplied to the molten tin of molten tin bath
On surface, melten glass is configured to continuous sheet in molten tin bath, the company of Rack will be formed in molten tin bath
The glass tape of continuous glass plate pulls out from melting tin surfaces, is cut to the glass plate of given size.
Generally glass tape is being melted by using the roller for being referred to as runner from the pull-out of the glass tape on molten tin bath surface
Mention progress in the downstream for melting tin bath.Region where the runner is referred to as " lifting region ".The glass tape of pull-out passes through
The annealing operation for being referred to as annealing (lehr) in the downstream of lifting region is annealed.Hereinafter, the region this annealed
Referred to as " annealing region ", " lehr rollers " will be referred to as in the roller of the annealing region inner support, conveying glass tape.Melting in float tank
Tin be oxidized easily, therefore the atmosphere in float tank remains reducing atmosphere.In addition, lifting region generally also remains also
Originality atmosphere.
In the manufacturing process of such glass plate, the lower surface of the glass tape pulled out from melting tin surfaces is easily attached with
Molten tin.Because the surface of roller contacts with the lower surface of glass tape, so if attached to the molten tin of the lower surface of glass tape
It is attached on the surface of roller, then can repeatedly adheres to molten tin on the glass tape conveyed afterwards.Patent Document 1 discloses
Remove the removing member of the foreign matters such as the molten tin being attached on the surface of runner.
The removing member of patent document 1 is removed by the removing member of the board-like material in the surface of runner pressing carbon
Attachment removal is in foreign matters such as the molten tins on the surface of runner.
Prior art literature
Patent document
Patent document 1：Japanese Unexamined Patent Publication 11-335127 publications
The content of the invention
Invent problem to be solved
But in the technology of patent document 1, it is impossible to reliably remove the molten tin on the surface of runner, it is impossible to fully
Ground solve the problems, such as molten tin be attached to again glass tape and on glass tape produce defect the problem of.
Being attached to the foreign matters such as the molten tin of glass tape turns into defect, under the quality decline and production yield rate that cause glass plate
Drop.It is according to circumstances different, need to remove the foreign matter for the glass tape after annealing, glass plate, it is therefore desirable to new to set removing
The process of foreign matter, cause cost further up.In addition, the foreign matter residued on roller can bring defect, Jin Eryou to glass tape
In the defect, ftractureed annealing with process afterwards, cause production yield rate to decline.
The result discovery of the present inventor's further investigation, the removing for the board-like material of the carbon disclosed in patent document 1
For component, the function of the molten tin on the surface of runner is not only removed, and by forming carbon film in lifting roller surface to press down
The function that the foreign matters such as the molten tin that system is brought into from glass tape are attached to roller is insufficient.Currently invention addresses the removing structure used in the past
The carbon film of part forms function, and removing member is referred to as into carbon film below forms component.
By the function, the generation for the defects of glass tape as caused by the foreign matter for being attached to roller can be suppressed.Further, since
The foreign matter that glass tape can be suppressed to come from is attached to roller, so can suppress molten tin is attached to glass tape again from roller.
But in the technology of patent document 1, because the formation of carbon film is insufficient, so can not solve the problems, such as conventional.
The present invention be in view of such situation and make, it is molten by suppressing to bring into from glass tape its object is to provide
Melt the foreign matters such as tin and be attached to roller, caused glass plate system the defects of so as to suppress the glass tape as caused by the foreign matter for being attached to roller
Make device and glass plate manufacturing method.
The means used to solve the problem
It is a feature of the present invention that using by the way that melten glass to be poured into molten tin bath to the float glass process to be manufactured
Device for producing glass sheet in,
Have：In the melt temperature scope for conveying the tin pulled out from the molten tin bath and in the molten tin bath
Glass tape roller, and form component with the carbon film of the roller Elastic Contact；
The carbon film forms the toner body that the surface side contacted with the roller of component includes below particle diameter 100nm.
It is a feature of the present invention that using by the way that melten glass to be poured into molten tin bath to the float glass process to be manufactured
Device for producing glass sheet in,
Have：In the melt temperature scope for conveying the tin pulled out from the molten tin bath and in the molten tin bath
Glass tape roller, and form component with the carbon film of the roller Elastic Contact；
The carbon film forms the formed products that component is toner body, and its Shore hardness is below 50HS or based on ISO 15184
Scratch hardness for below 4B or meet both.
The carbon film of the present invention forms component preferably by supporting the carbon film to form the supporting member and resilient support of component
The elastic support unit support of the supporting member.
The supporting member of the present invention is preferably selected from by graphite, boron nitride, alkali metal sulfates, alkaline-earth metal sulfuric acid
At least one of group that salt, alkali carbonate, alkaline earth metal carbonate, silica fine particle and alumina particulate form
Formed body.
The surface roughness (Ra) of the roller of the present invention is preferably 0.1~5.0 μm.
It is a feature of the present invention that using by the way that melten glass to be poured into molten tin bath to the float glass process to be manufactured
Glass plate manufacturing method in,
The toner body that particle diameter is below 100nm is pulled out with conveying from the molten tin bath and be in the molten tin bath
In tin melt temperature scope in glass tape roller contact, so as to forming carbon film in the roller surface.
It is a feature of the present invention that using by the way that melten glass to be poured into molten tin bath to the float glass process to be manufactured
Glass plate manufacturing method in,
Formed body obtained from the toner body that particle diameter is below 100nm is shaped is set to be drawn with conveying from the molten tin bath
The roller contact for the glass tape for going out and being in the melt temperature scope of the tin in the molten tin bath, so as in the roller surface
Form carbon film.
Preferably, the Shore hardness of the formed body of the invention is below 50HS or the cut based on ISO 15184 is hard
Spend for below 4B or meet both.
Invention effect
In accordance with the invention it is possible to providing the foreign matters such as the molten tin brought into by suppression from glass tape is attached to roller, so as to press down
Make the caused device for producing glass sheet and glass plate manufacturing method as caused by the foreign matter for being attached to roller the defects of glass tape.
Brief description of the drawings
Fig. 1 is the sectional view of the device for producing glass sheet for the carbon film-forming appts for applying embodiment.
Fig. 2 is the side view of the carbon film-forming appts of the embodiment shown in Fig. 1.
Fig. 3 A are the oblique view of the composition for the first embodiment for representing the carbon film-forming appts shown in Fig. 1.
Fig. 3 B are the oblique view of the composition for the second embodiment for representing the carbon film-forming appts shown in Fig. 1.
Fig. 4 is the sectional view of the device for the preparation of determine that reflectivity is coated with for carbon.
Fig. 5 is that the carbon for representing the graphite and toner body of the present invention used in the past is coated with the figure of reflectivity.
Embodiment
Hereinafter, illustrated referring to the drawings to applying embodiments of the present invention.
Fig. 1 is the section view of the device for producing glass sheet 12 based on float glass process for the carbon film-forming appts 10 for applying embodiment
Figure, Fig. 2 are the side view of carbon film-forming appts 10.In addition, Fig. 3 A, Fig. 3 B are the oblique view of carbon film-forming appts 10.Need
It is bright, in the following description, downstream refer on the basis of the moving direction of Fig. 1 glass tape 16 with its equidirectional side
(Fig. 1 arrow A directions), is referred to as upstream by its opposite direction side.
Carbon film-forming appts 10 shown in Fig. 1 are by making the carbon film of toner body that particle diameter is below 100nm form component
24 pull out with conveying from the surface of the molten tin 20 of the molten tin bath 18 of float tank 17 and in the melt temperature scope in tin
Such as 3 runners 22,22,22 of glass tape 16 distinguish Elastic Contact, so as to be formed on the surface of runner 22,22,22
The device of carbon film.
The molten tin brought into from glass tape 16, the overburden and cullet peeled off from roller surface can be adhered on runner 22
Deng foreign matter.By carbon film-forming appts 10, the foreign matters such as molten tin can be suppressed and be attached to runner 22.
The glass tape 16 formed in molten tin 20 is pulled out from molten tin bath 18, towards as the downstream shown in arrow A
Move in direction.
Carbon film-forming appts 10 form component 24 by the carbon film contacted with the downside of runner 22 and support carbon film is formed
The supporting member 26 of the rectangular shape of component 24 is formed, and carbon film forms the width of component 24 and supporting member 26 along glass tape 16
Spend direction (perpendicular to direction of paper) configuration.
As shown in Fig. 2 carbon film-forming appts 10 by carbon film formed component 14 and as elastic support unit flat spring fill
Put 11 compositions.The flat spring device 11 of embodiment includes lower pallet 11A, the plate of the adjacent multiple V-shaped set to its upper
Spring body 11B, the upper pallet 11C configured on these flat spring main bodys 11B top.Lower pallet 11A and upper pallet 11C are formed
For the carbon film of multiple adjoinings can be supported to form the length and width of component 14, flat spring main body 11B can be formed in each carbon film
The lower section of component 14 respectively sets one, can also set multiple.In the example in figure 2, three carbon film formation groups are configured with adjacent
The state of part 14, three flat spring main body 11B of adjacent configuration.Its bottom side is arranged on undercarriage by the flat spring main body 11B of V-shaped
On platform 11A, side flexibly supports upper pallet 11C at an upper portion thereof.
Composition more than, using the elastic-restoring force of flat spring device 11, form the carbon film that carbon film forms component 14
Form component 24 and the Elastic Contact of runner 22.
Carbon film-forming appts 10, as shown in Figure 3A, can the carbon film as obtained from shaping toner body formed component 24A and
Supporting member 26 is formed, can also be by toner body directly is formed into component 24B and supporting member 26 with the powdered carbon film used
Form.The carbon film forms component 24A and then can added by the way that carbon dust is filled in mould under the pressure more than 10MPa
Press and obtain.In addition, carbon film formation component 24A can also be by the way that carbon dust be filled in rubber mold, then by the rubber
Sealing rubber die is put into tank, is pressurizeed by hydrostatic pressing to obtain.Formed body after these shapings, which is cut into, to be inserted into supporting
Size in the groove of component 26.The carbon film forms component 24B because the cohesive of its carbon dust is stronger, it is possible to is being put into
It is supported in the groove of supporting member 26 and is used if gently filled in the case that powder does not also disperse.In addition, as schemed
Shown in 3B, carbon film it can also form component 24A only obtained from toner body is shaped and form.
In the present invention, from lightweight and with from the aspect of heat resistance, supporting member 26 is preferably in the past as removing structure
The formed body for the carbon (graphite) that part uses.In addition, supporting member 26 preferably and carbon film formed component 24 coefficient of thermal expansion difference it is small
Formed body.If the difference of coefficient of thermal expansion is big, carbon film forms the constraint that component 24 is supported component 26, it is possible to opens
Split and become unable to play function.In addition, supporting member 26 can use boron nitride, alkali metal sulfates, alkaline-earth metal sulfuric acid
Salt, alkali carbonate, alkaline earth metal carbonate, silica fine particle, the formed body of alumina particulate.In addition, boron nitride
The preferred purity more than 30% of formed body.
In order to improve the replacement operation that carbon film forms component 24, the constituted mode of carbon film-forming appts 10 is such as to scheme
3A, Fig. 3 B length direction on be divided into three parts, such as the carbon film for being divided into three parts is formed into component 14,14,14 linearly to carry out
Configuration.
By the way, in the manufacture method using the glass sheet of float glass process, including：Using the kiln (not shown) that melts by original
Expect the process melted, the melten glass after melting is configured to flat board in the molten tin 20 of the molten tin bath 18 of float tank 17
Process, the process for pulling out glass tape 16 using runner 22,22,22 from molten tin bath 18, with by annealing region 28
Lehr rollers 30,30..... moving glass ribbons 16 while moved back the mode of inside that strain do not end up at glass tape 16
The process of fire.These processes are operated using common equipment, and the setting of carbon film-forming appts 10 will not have an impact.
Carbon film-forming appts 10 can be arranged in the optional position or annealing region 28 of the lifting region 21 of above-mentioned operation
Upstream portion.The upstream portion in annealing region 28 herein refers to that glass temperature is in more than the fusing point of tin in annealing region 28
Temperature region (the melting temperature region of tin).Lifting domain 21 is generally in the melting temperature region of tin.
In embodiments, formed in carbon film in component 24, as the surface being suitable in runner 22 or lehr rollers 20
The upper foreign matter for forming carbon film and the tin oxide comprising the surface for being attached to glass tape 16 being removed by the film, and to the wiping of glass
The weak material of overstrain, use below particle diameter 100nm toner body or formed body.Preferably, its particle diameter is 3~100nm.Made in the past
The particle diameter (D50) of the formed body of the graphite used for removing member is 1~300 μm.Because carbon particle is thin than ever, so carbon granules
The tack of sub- two pairs of rollers improves, and can promote the formation of carbon film.
It is soft that carbon film forms formed body of the component 24 preferably than conventional graphite.Specifically, Shore hardness is preferably 50HS
Below.Shore hardness is even more preferably about 20~about 50HS.In addition, pencil hardness is preferably below 4B.Pencil hardness is more preferably
4B~8B.Herein, pencil hardness refers to the scratch hardness based on ISO 15184.The Shore hardness of the formed body of conventional graphite
It is about 20~about 80HS, pencil hardness is HB~4B.Due to softer than the carbon formed body of conventional graphite, so by elastic with roller
Contact, do not allow to be also easy to produce gap between roller and carbon film form component, carbon film is formed uniformly comprehensively to roller surface.
In embodiments, the width that carbon film forms each component 14 of component 24 is 610mm.Component 24 is formed in the carbon film
The contact that carbon film when being contacted with diameter 300mm runner 22 forms component 24 be about 4~about 5kg (about 32~about
40g/cm2)。
Carbon film forms component 24 with being in the melting of tin as region, the glass temperature after being pulled out from molten tin bath 18
The surface contact of runner 22 in temperature range.The fusing point of tin is about 230 DEG C, and therefore, configuration carbon film forms the area of component 24
Domain is the temperature province higher than the fusing point of tin.As described above, lifting region 21 is generally in the glass temperature more than fusing point of tin
Region, the upstream region of annealing region 28 are also generally in glass temperature the region more than fusing point of tin.Therefore, carbon film forms structure
Surface of the part 24 preferably with the roller of the upstream region positioned at lifting region 21 or annealing region 28 contacts, especially more preferably with positioned at
The surface contact of the runner 22 of lifting region.
Comprising carbon film formed component 24 region atmosphere be preferably in non-oxidizing atmosphere (that is, reducing gas atmosphere or
Inert gas atmosphere).For example, lifting region 21 is generally maintained at and the identical reducing gas atmosphere of float tank 17.In addition, annealing
The part that the gas of the lifting region 21 of the upstream portion of region 28 flows into is generally in reducing gas atmosphere or inert gas atmosphere.Cause
This, the configuring area that carbon film forms component 24 is in these regions.
Oxygen concentration in non-oxidizing gas, non-oxidizing gas atmosphere is preferably below 100ppm, particularly preferably
Below 20ppm.As reducibility gas, preferably hydrogen, acetylene or there is these inert gas.It is excellent as inert gas
Elect nitrogen or argon gas as.Reducing atmosphere is preferably the hydrogeneous nitrogen atmosphere of atmosphere identical with float tank 17.
As runner 22, the Facing material of lehr rollers 30, oxide-base, carbide base, nitride base etc. can be applied
Various ceramics or stainless steel etc..As various ceramic concrete examples, can enumerate：With zirconium oxide (ZrO2) it is main component
Zirconia-based ceramics, with aluminum oxide (Al2O3) it is the alumina-based ceramic of main component, with silica (SiO2) for mainly into
Titanium dioxide silicon based ceramic divided etc..In addition, as runner 22, the Facing material of lehr rollers 20, can be disperseed using oxide
The various ceramals such as type ceramal, chromium carbide base ceramal or boride-based ceramics alloy.
Form the runner 22 of carbon film, the surface roughness (Ra) of lehr rollers 30 is preferably 0.1~5.0 μm.Particle diameter is
The diameter of below 100nm toner body is smaller than the surface roughness (Ra) of the roller, so being to the tack on smooth surface
Effectively.
As described above, according to the carbon film-forming appts 10 of embodiment, make toner body or conduct that particle diameter is below 100nm
It forms the carbon film of body and forms component 24 and the Elastic Contact of runner 22.Thus, carbon film forms component and roller is closely sealed, therefore in roller
Surface forms the foreign matter such as carbon film, the molten tin for suppressing to bring into from glass tape and is attached to roller.Therefore, it is possible to suppress by being attached to roller
Generation caused by foreign matter the defects of glass tape.Further, since the foreign matter that can suppress to come from glass tape is attached to roller, so
Molten tin can be suppressed and be attached to glass tape again from roller.
As a result, the downstream of component 24 is formed in carbon film can be reduced in the grade roller of lehr rollers 30 contacted with glass tape 16
The foreign matter of upper attachment, therefore the foreign matter for coming from these rollers can be prevented to be attached to again on glass tape 16.
According to the manufacture method of the glass plate using the carbon film-forming appts 10, can reduce by being attached to glass tape 16
Caused by the foreign matters such as tin, tin oxide the defects of glass plate, also tailed off the defects of glass tape 16 as caused by the foreign matter for being attached to roller,
Therefore the reduction of the high-quality and manufacturing expense of glass plate can be realized.
Embodiment
In the present invention, the raising of the tack of carbon particle two pairs of rollers is coated with measuring reflectance by carbon and confirmed.Hereinafter,
Illustrated for preparation of determine, assay method.
To zirconium oxide (ZrO2- 8 weight %Y2O3) plate progress ethanol cleaning, then carry out pure water cleaning.Shown in Fig. 4
Carbon plate 42, zirconium oxide plate 41, weight 43 and carbon housing 44 are set in experimental rig 40, using electric heater 45 in a nitrogen atmosphere
700 DEG C are maintained at, then zirconium oxide plate 41 is moved back and forth relative to carbon plate 42 with defined speed by line (not shown), will
Carbon film is attached on zirconium oxide plate 41.
Experimental rig 40 shown in Fig. 4 is to be set in the inside for the container 40A that internal atmosphere can be adjusted to nitrogen atmosphere
The composition of multiple electric heaters 45 is equipped with, and can be heated in the state of by container 40A internal regulation as nitrogen atmosphere
Mode to target temperature is formed.That is, nitrogen supply source is connected to a container 40A part, is set in a container 40A part
The shutter door for making carbon plate 42 and zirconium oxide plate 41 come in and go out freely is put, the drive device for driving above-mentioned line is set, in above-mentioned heating shape
It can carry out moving back and forth experiment under state, form in this way.
As carbon plate 42, use：The formed body of the graphite used in the past as removing member and the toner body by the present invention
The formed body of shaping.Reciprocal time (hereinafter referred to as application frequency) is set as being compared evaluation 1 time, 3 times, 5 times, 10 times.
Room temperature is down in the inside of experimental rig 40, then removed zirconium oxide plate 41, carries out carbon coating measuring reflectance.
The reflectometer TC-6D (trade name) manufactured in the measure of reflectivity using Tokyo electricity Se companies.
Fig. 5 illustrates that the graphite (comparative example) used in the past and uses the carbon plate of the toner body (embodiment) of the present invention
Carbon is coated with the figure of reflectivity.The longitudinal axis represents reflectivity R (%), and it is lower to the tack of glass to be worth higher expression toner body.In addition,
Transverse axis represents application frequency N.
It is as seen from Figure 5, lower than reflectivity by the toner body formed body shaped and the graphite-phase that used of the present invention in the past,
Also have the tendency of even if increase application frequency same.Understand：Because the graphite-phase with using in the past is lower than reflectivity, so real
The toner body for applying example is high to the tack of the carbon particle of zirconium oxide plate 41.
The application is used as with reference to simultaneously based on Japanese patent application 2013-093956 filed in 26 days April in 2013, its content
Enter herein.
Brief description of the drawings
10 carbon film-forming appts
11 flat spring devices (elastic support unit)
12 device for producing glass sheet
14 carbon films form component
16 glass tapes
17 float tanks
18 molten tin baths
20 molten tins
21 lifting regions
22 runners
24th, 24A, 24B carbon film form component
26 supporting members
28 annealing regions
30 lehr rollers
40 experimental rigs
41 zirconium oxide plates
42 carbon plates
43 weights
44 carbon housings
45 electric heaters
Claims (6)
1. a kind of device for producing glass sheet, it is using by the way that melten glass to be poured into molten tin bath to the float glass process to be manufactured
Manufacture glass plate, it is characterised in that
Described device has：Convey the melting temperature model of the tin pulled out from the molten tin bath and in the molten tin bath
The roller of glass tape in enclosing, and form component with the carbon film of the roller Elastic Contact；
The carbon film forms component by supporting the carbon film to form the supporting member of component and flexibly supporting the elasticity of the supporting member
Support unit supports,
The supporting member is provided with groove, and supports the carbon film being inserted into the groove to form component,
The surface side contacted with the roller that the carbon film forms component is the toner body or its formed body that particle diameter is below 100nm.
2. device for producing glass sheet as claimed in claim 1, wherein,
The Shore hardness of the formed body of the toner body be below 50HS or the scratch hardness based on ISO 15184 be below 4B,
Or meet both.
3. device for producing glass sheet as claimed in claim 1 or 2, wherein, the supporting member is selected from by graphite, nitridation
Boron, alkali metal sulfates, alkali earth metal sulfate, alkali carbonate, alkaline earth metal carbonate, silica fine particle and oxygen
Change the formed body of at least one of the group of aluminium particulate composition.
4. device for producing glass sheet as claimed in claim 1 or 2, wherein, the surface roughness (Ra) of the roller for 0.1 μm~
5.0μm。
5. a kind of manufacture method of glass plate, it is floated using by the way that melten glass is poured into molten tin bath and what is manufactured
Legal system makes glass plate, it is characterised in that
Carbon film is set to form the melting temperature for the tin that component is pulled out from the molten tin bath with conveying and is in the molten tin bath
The roller contact of glass tape in the range of degree, thus forms carbon film in the roller surface,
The carbon film forms component by supporting the carbon film to form the supporting member of component and flexibly supporting the elasticity of the supporting member
Support unit supports,
The supporting member is provided with groove, and supports the carbon film being inserted into the groove to form component,
The surface side contacted with the roller that the carbon film forms component is the toner body or its formed body that particle diameter is below 100nm.
6. glass plate manufacturing method as claimed in claim 5, wherein, the Shore hardness of the formed body of the toner body is 50HS
Below or the scratch hardness based on ISO 15184 is below 4B or meets both.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2013-093956 | 2013-04-26 | ||
| JP2013093956A JP2016128363A (en) | 2013-04-26 | 2013-04-26 | Glass plate production apparatus, and glass plate production method |
| PCT/JP2014/059043 WO2014174986A1 (en) | 2013-04-26 | 2014-03-27 | Glass sheet production device and glass sheet production method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105143124A CN105143124A (en) | 2015-12-09 |
| CN105143124B true CN105143124B (en) | 2017-12-01 |
Family
ID=51791568
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201480023415.9A Active CN105143124B (en) | 2013-04-26 | 2014-03-27 | Device for producing glass sheet and glass plate manufacturing method |
Country Status (4)
| Country | Link |
|---|---|
| JP (1) | JP2016128363A (en) |
| KR (1) | KR20160002827A (en) |
| CN (1) | CN105143124B (en) |
| WO (1) | WO2014174986A1 (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6256860B2 (en) * | 2014-03-14 | 2018-01-10 | 日本電気硝子株式会社 | Foreign matter removing member, foreign matter removing device, and glass manufacturing method |
| KR102070683B1 (en) * | 2016-02-02 | 2020-01-29 | 주식회사 엘지화학 | Apparatus and method for manufacturing float glass |
| CN106242252B (en) * | 2016-09-09 | 2018-09-04 | 蚌埠中建材信息显示材料有限公司 | A kind of sealing device of roller-way lower part |
| JP6838530B2 (en) * | 2017-09-01 | 2021-03-03 | Ａｇｃ株式会社 | Float glass manufacturing equipment and float glass manufacturing method |
| JP2019218222A (en) * | 2018-06-18 | 2019-12-26 | Ａｇｃ株式会社 | Apparatus and method for manufacturing float glass |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11335127A (en) | 1998-05-26 | 1999-12-07 | Central Glass Co Ltd | Removing member for tin adhered to float glass carriage roll |
| JP2001146433A (en) * | 1999-11-16 | 2001-05-29 | Central Glass Co Ltd | Sealing mechanism of device for producing float glass |
| KR101455890B1 (en) * | 2007-07-23 | 2014-11-03 | 아사히 가라스 가부시키가이샤 | Float glass making process and float glass making equipment |
| JP5152478B2 (en) * | 2007-08-22 | 2013-02-27 | 旭硝子株式会社 | Glass plate manufacturing apparatus and glass plate manufacturing method |
| JP5311142B2 (en) * | 2009-12-25 | 2013-10-09 | 日本電気硝子株式会社 | Glass plate manufacturing method and manufacturing apparatus thereof |
| JP5446950B2 (en) * | 2010-02-03 | 2014-03-19 | 旭硝子株式会社 | Deposit removal member for transfer roll for float glass |
| CN102432161A (en) * | 2010-09-29 | 2012-05-02 | 旭硝子株式会社 | Method for making glass plate by floating method |
| JPWO2013061793A1 (en) * | 2011-10-28 | 2015-04-02 | 旭硝子株式会社 | Rare roll cleaning method and glass plate manufacturing apparatus |
-
2013
- 2013-04-26 JP JP2013093956A patent/JP2016128363A/en active Pending
-
2014
- 2014-03-27 WO PCT/JP2014/059043 patent/WO2014174986A1/en active Application Filing
- 2014-03-27 CN CN201480023415.9A patent/CN105143124B/en active Active
- 2014-03-27 KR KR1020157030639A patent/KR20160002827A/en not_active Application Discontinuation
Also Published As
| Publication number | Publication date |
|---|---|
| KR20160002827A (en) | 2016-01-08 |
| CN105143124A (en) | 2015-12-09 |
| JP2016128363A (en) | 2016-07-14 |
| WO2014174986A1 (en) | 2014-10-30 |
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