CN106064878A - Manufacture device, the manufacture method of float glass of float glass - Google Patents
Manufacture device, the manufacture method of float glass of float glass Download PDFInfo
- Publication number
- CN106064878A CN106064878A CN201610245204.0A CN201610245204A CN106064878A CN 106064878 A CN106064878 A CN 106064878A CN 201610245204 A CN201610245204 A CN 201610245204A CN 106064878 A CN106064878 A CN 106064878A
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- China
- Prior art keywords
- glass
- float glass
- curtain
- iron sheet
- sheet portion
- Prior art date
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Classifications
-
- 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
- C03B18/00—Shaping glass in contact with the surface of a liquid
- C03B18/02—Forming sheets
- C03B18/16—Construction of the float tank; Use of material for the float tank; Coating or protection of the tank wall
-
- 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
- C03B18/20—Composition of the atmosphere above the float bath; Treating or purifying the atmosphere above the float bath
-
- 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
Abstract
What the present invention provided a kind of pressure oscillation suppressed in molten metal bath and dross box or the intrusion of extraneous gas and can aid in the float glass of the manufacture of the sheet glass of high-quality manufactures device, the manufacture method of float glass.The manufacture device of float glass possesses: molten metal bath, houses motlten metal；Leer, the glass tape being configured to band plate-like on motlten metal is moved in leer；Dross box, is arranged between molten metal bath and leer；And curtain, it is arranged in this dross box, and is arranged in from molten metal bath to the top of multiple runners of leer moving glass band, wherein, curtain is provided with reinforcement unit in the downstream in the carrying direction of glass tape.
Description
Technical field
The present invention relates to float glass manufactures device, the manufacture method of float glass.
Background technology
One of representational manufacture method as glass sheet, it is known to float glass process.In float glass process, melting in molten metal bath
The bath face melting metal continuously feeds melten glass and forms the glass tape of band plate-like.Glass tape from bath face elevated after, from
The outlet of molten metal bath is drawn, by the runner carrying being arranged in dross box.It follows that glass tape is moved to leer
In, by transport roller (slow cooling roller) carrying slow cooling on one side.It follows that glass tape is moved to outside leer, it is cooled to room temperature
After Fu Jin, cut into given size, become product i.e. glass plate.Motlten metal generally uses molten tin.
Stannum is monomer, oxidized and become stannum oxide (SnO when becoming high temperature in the atmosphere that there is oxygen2).By metal
In the float glass manufacturing device that liquid bath, dross box, leer etc. are constituted, owing to invading the oxygen in molten metal bath and high temperature
Molten tin aoxidizes, and generates stannum oxide, the problem that there is the surface being attached to glass tape.In view of this point, supply in molten metal bath
To the reproducibility mixed gas etc. of reducibility gas, such as hydrogen, nitrogen or hydrogen Yu nitrogen, make molten metal bath due to extraneous gas
Inside is malleation, and refusal wraps the intrusion of oxygen containing extraneous gas.
It is arranged on the dross box between described molten metal bath and described leer Nei requirement to be supplied to from aforesaid metal
The reproducibility mixed gas of liquid bath, will remain more than atmospheric pressure in dross box, keep the ring preventing the generation of stannum oxide, attachment
Border.
But, the gap etc. wrapping the oxygen containing extraneous gas slow cooling furnace side from dross box invades, and the pressure in dross box becomes
Dynamic, in dross box, at Surface Creation, the attachment stannum oxide of glass tape.Then, manufactured glass sheet can be peeling or shape
The shortcomings such as change and reduce quality.
In recent years, television set, smart mobile phone etc. use sheet glass, when the surface at such sheet glass exists small
Shortcoming time, strength deterioration can be directly resulted in.
In view of the above problems, in order to prevent pressure oscillation in molten metal bath and dross box and wrap oxygen containing extraneous gas
Intrusion, have dross box runner top position configuration be referred to as curtain metal cord technology (such as,
With reference to patent documentation 1).
[citation]
[patent documentation]
[patent documentation 1] Japanese Unexamined Patent Publication 2001-146433 publication
[inventing problem to be solved]
But, there is problem below in the technology of patent documentation 1.
The face of the upstream side in the carrying direction of the glass tape of curtain is in the shape bearing the pressure from molten metal bath all the time
State.Therefore, over time through and buckling deformation that the face in downstream in carrying direction that curtain produces glass tape bloats.
Then, the pressure oscillation in molten metal bath and dross box, or allow the intrusion of extraneous gas, manufactured thin plate
Glass produces shortcoming and makes quality decline.
Summary of the invention
The present invention makes in view of above-mentioned problem, it is provided that a kind of pressure that can suppress in molten metal bath and dross box becomes
Dynamic, the intrusion of extraneous gas and contribute to the manufacture device of the float glass of the manufacture of the sheet glass of high-quality.
[for solving the scheme of problem]
In order to solve above-mentioned problem, according to a scheme of the present invention, it is provided that the manufacture device of a kind of float glass, possess:
Molten metal bath, houses motlten metal；Leer, the glass tape being configured to band plate-like on described motlten metal is moved to slow cooling
In stove；Dross box, is arranged between described molten metal bath and described leer；And curtain, it is arranged in this dross box, and configuration
On the top of the multiple runners carrying described glass tape from described molten metal bath to described leer,
The device that manufactures of described float glass is characterised by,
Described curtain is provided with reinforcement unit in the downstream in the carrying direction of described glass tape.
[invention effect]
A scheme according to the present invention, using the teaching of the invention it is possible to provide a kind of pressure oscillation suppressed in molten metal bath and dross box, outside
The intrusion of gas and contribute to the manufacture device of the float glass of the manufacture of the sheet glass of high-quality.
Accompanying drawing explanation
Fig. 1 is the partial sectional view manufacturing device of the float glass of first embodiment of the present invention.
Fig. 2 is the schematic configuration diagram of the curtain manufacturing device of the float glass of the first embodiment constituting the present invention,
(A) be the I-I of (B) to regarding sectional view, (B) is the front view of curtain.
Fig. 3 is the schematic configuration diagram of the curtain manufacturing device of the float glass constituting second embodiment of the present invention,
(A) be the II-II of (B) to regarding sectional view, (B) is the front view of curtain.
Fig. 4 is the outline of the variation of the curtain manufacturing device of the float glass constituting second embodiment of the present invention
Pie graph, (A) be the III-III of (B) to regarding sectional view, (B) is the front view of curtain.
Fig. 5 is the figure of the experimental result representing comparative example and embodiment.
[label declaration]
The manufacture device of 1 float glass
2 glass tapes
10 molten metal baths
11 motlten metals
12 bath faces
13 outlets
18 heaters
20 leers
21 transport rollers
23 entrances
28 heaters
30 dross boxs
31 outer walls
32 inwalls
33,34 thermal insulation barriers
35～38 spaces
39 outlets
4 runners
5 contact members
6,600 curtain
60 frame sections
60A, 60B, 600A, 600B frame unit
61,610 corrugated iron sheet portion
601B peristome
602B extension
62 reinforcement units (deformation prevents plate)
620 reinforcement units
7 heaters
Detailed description of the invention
Hereinafter, referring to the drawings, the mode for implementing the present invention is described.In the drawings, for same or corresponding knot
Structure, marks same or corresponding label and omits the description.In this manual, represent numerical range "～" refer to it before
After the scope of numerical value.It should be noted that in the following description, " downstream " refers to the downstream, carrying direction of glass tape,
" upstream side " refers to the upstream, carrying direction of glass tape.
[the first embodiment]
(the manufacture device of float glass)
Fig. 1 is the partial sectional view manufacturing device of the float glass of first embodiment of the present invention.As it is shown in figure 1,
Float glass manufacture device 1 possess molten metal bath 10, leer 20, be arranged between molten metal bath 10 and leer 20 floating
Slag case 30.
On the bath face 12 of the motlten metal 11 in molten metal bath 10, it is configured to the glass tape of desired width or thickness
2 utilize runner 4 or the pull strength of transport roller 21 and 12 elevated from bath face.It follows that glass tape 2 going out from molten metal bath 10
Mouth 13 is moved in dross box 30, runner 4 carry.It follows that glass tape 2 is moved in leer 20, by
Transport roller (slow cooling roller) 21 carrying is while by slow cooling.Then, glass tape 2 is moved to outside leer 20, is being cooled to room temperature
After Fu Jin, cut into given size, become product i.e. glass plate.
It is used in the glass of glass plate suitably to be selected according to purposes of glass plate etc..Such as, the purposes of glass plate is
In the case of plasma display glass substrate, use the glass that temperature is high, thermal coefficient of expansion is big of strain point.And,
In the case of the purposes of glass plate is liquid crystal display glass substrate, alkali metal causes badly to the quality of liquid crystal display
Impact, therefore uses and does not the most comprise alkali-metal alkali-free glass.Here, " alkali-free glass " refers to not comprise Li2O、
Na2O、K2The glass of the alkali metal oxide of O etc..
Molten metal bath 10 houses motlten metal 11.Upper space in molten metal bath 10 is in order to prevent the oxygen of motlten metal 11
Change and be full of by the reproducibility mixed gas comprising nitrogen and hydrogen.And, the upper space in molten metal bath 10 is in order to prevent from outward
The inflow of the air in portion and be set to higher than atmospheric pressure.From the outlet 13 of the molten metal bath 10 of extraction glass tape 2 towards dross box
30 flow out reducing atmosphere.It is provided with near outlet 13 in molten metal bath 10 and glass tape 2 is adjusted to plastic deformation
The heater 18 of temperature.
The leer 20 outlet in downstream opens to outside.Therefore, the inside of leer 20 essentially becomes and comprises oxygen
Atmosphere.The inside of leer 20 connects with the inside of molten metal bath 10 via the inside of dross box 30.
In leer 20, in addition to above-mentioned transport roller 21, it is additionally provided with heater 28 etc..Transport roller 21 is respectively by electronic
The driving means such as machine drive and rotate, and utilize this driving force to be carried in the horizontal direction by glass tape 2.
Dross box 30 can also have thermal insulation construction, such as shown in Fig. 1, and the outer wall 31 on top at least some of by heat insulation
Part 33 covers, and at least some of of the inwall 32 of bottom is covered by thermal insulation barriers 34.As thermal insulation barriers 33,34, use general
Structure.By using thermal insulation barriers 33,34, it is possible to suppress the heat radiation from dross box 30, it is possible to the Temperature Distribution making glass tape 2 is stable
Change, it is possible to the warpage of suppression product.
In dross box 30, outside above-mentioned runner 4 (following, to be also only called " roller 4 "), be additionally provided with contact member 5,
Curtain 6, heater 7 etc..Roller 4 is driven by the driving means such as motor respectively and rotates, utilize this driving force and by glass tape 2 court
Carry obliquely upward.As long as the number of roller is multiple, it is not particularly limited.It is provided with contact member 5 in the bottom of roller 4.
Contact member 5 is formed by carbon etc..Contact member 5 respectively with the outer peripheral face sliding contact of corresponding roller 4, by glass tape
The underlying space of 2 is separated into multiple space 35～38.
Curtain 6 is provided in the top of glass tape 2 and the upper position of roller 4 and is covered by the superjacent air space of glass tape 2
Containment wall.In the superjacent air space of glass tape 2, from the reproducibility mixed gas of outlet 13 outflow of molten metal bath 10 towards slow cooling
Entrance 23 (outlet 39 of the dross box 30) flowing of stove 20.
Curtain 6 limits the oxygen intrusion from leer 20, the increase of the oxygen concentration in suppression dross box 30.Thereby, it is possible to press down
The burning of the hydrogen of reproducibility mixed gas processed, it is possible to temperature change or local that the combustion flame of suppression hydrogen causes are heated.Curtain 6
Configure, with the carrying of obstruction free glass tape 2 with separating a little (such as 1cm) from the upper surface of glass tape 2.Curtain 6 is by outer wall 31
Hanging holding, the carrying direction along glass tape 2 arranges multiple.
There is speciality in the device 1 that manufactures of the float glass of present embodiment in the structure of above-mentioned curtain 6, especially has
Have and be prevented from curtain 6 downstream side and bloat and the structure of buckling deformation.About this point, it is described below.
Heater 7 is separately positioned in the both sides up and down of glass tape 2, and the carrying direction respectively along glass tape 2 arranges multiple row.
Such as shown in Fig. 1, the heater 7 of each row be arranged on curtain 6 each other or contact member 5 each other.The heater 7 of each row
Can be divided along the width of glass tape 2.
(curtain)
It follows that based on accompanying drawing, describe the curtain 6 manufacturing device 1 of the float glass constituting the first embodiment in detail.
Fig. 2 illustrates the schematic configuration of curtain.Fig. 2 A be the I-I of Fig. 2 B to regarding sectional view, Fig. 2 B is the front view of curtain.Furthermore,
Fig. 2 B is the front view that side is observed downstream relative to the carrying direction of glass tape 2.
Curtain 6 has frame section 60 and corrugated iron sheet portion 61.Frame section 60 is for the table by the top in corrugated iron sheet portion 61
Face and the back side sandwich and support and have 2 frame unit 60A and 60B.Frame unit 60A is arranged in the upstream side in corrugated iron sheet portion 61
Face (surface), frame unit 60B is arranged in the downstream side (back side) in corrugated iron sheet portion 61.Frame unit 60A, 60B are stainless steels
Angle member, the upper position in corrugated iron sheet portion 61 configures the most continuously, can be to arranging at certain intervals
Bolt hole be screwed into bolt 8 to clamp the top in corrugated iron sheet portion 61.The thickness of frame unit 60A, 60B is 2.5mm～3.5mm,
Being preferably about 3mm, highly (length) is 80mm～100mm, preferably about 93mm.
Corrugated iron sheet portion 61 is stainless steel and the corrugated iron sheet with waveform shape, use thickness be 0.1mm～
The material of the thin and thick of 0.2mm, preferably about 0.15mm.By the curtain 6 of present embodiment is formed as having corrugated iron sheet
The structure in portion 61, light weight and the rigidity of certain degree can be played, can allowable strain for big external pressure.
That is, curtain 6 utilizes, for the reproducibility mixed gas supplied from molten metal bath 10, the waveform shape that corrugated iron sheet has
Shape and the rigidity of certain degree can be played.To the position directly below moving glass band 2 of the bottom of curtain 6.Curtain 6 and glass tape
Gap the most small (such as 1cm) between 2, therefore up when producing, at glass tape 2, the glass (cullet) rupturing and rupturing
When the upper surface of glass tape 2, can contact with the bottom of curtain 6.Now, if the rigidity of curtain 6 is high, then glass tape can be stoped
The carrying flowing of 2, it is necessary to make production based on the float glass manufacturing device 1 stop.But, by using the corrugated iron of thin and thick
Plate portion 61, even if the cullet on glass tape 2 contact with the bottom in this corrugated iron sheet portion 61, also can deform energetically without
Stop carrying flowing.
Though so, but only tolerating the reproducibility mixed gas from molten metal bath 10 supply by corrugated iron sheet portion 61
If, owing to the process of time waits, downstream side bloats and deforms immediately.
Therefore, the speciality of the curtain 6 of present embodiment is to arrange reinforcement in the downstream in the carrying direction of described glass tape 2
Unit 62.
Reinforcement unit 62 (be equivalent to deformation and prevent plate) be width (length direction) interval along curtain 6 and
Multiple deformation is set and prevents plate 62.Deformation prevent plate 62 be width be the elongated of 30mm～50mm, preferably about 40mm
The plate of stainless steel, thickness is 2mm～4mm, preferably about 3mm.That is, deformation prevents plate 62 from being formed than corrugated iron sheet portion 61
Thick and guarantee rigidity power and supporting force.Highly (length) suitably change according to the relation of the length in corrugated iron sheet portion 61, but
Deformation prevents the lower end of plate 62 preferably to have the height exceeding 80mm～120mm than the lower end in corrugated iron sheet portion 61, preferably exceeds
The height of about 100mm.
The deformation of said structure prevents the bolt that plate 62 position at an upper portion thereof is provided with and is commonly located at frame unit 60A, 60B
The through hole that hole is consistent, is screwed into through hole and two bolts hole by above-mentioned bolt 8, thus is installed on frame unit 60B.Deformation prevents
The bottom of plate 62 is connected with corrugated iron sheet portion 61 without waiting especially through welding.Can certainly suitably be entered by welding etc.
Row connects.Deformation prevents the interval L ground that plate 62 separates about 250mm～350mm on the length direction of continuous print frame unit 60B
Arrange multiple.Interval L is more preferably 300mm.
The curtain 6 of said structure utilizes multiple deformation to prevent plate 62, even if at the upstream side (table in corrugated iron sheet portion 61
Face) persistently accept that reproducibility mixed gas also is able to prevent downstream side (back side) bloat deformation.
Therefore, according to the system of float glass manufacturing device 1 of the float glass employing the curtain 6 with said structure
Make method, it is possible to the pressure oscillation in suppression molten metal bath and dross box or the intrusion of extraneous gas, it is possible to by dross box 30
Pressure be maintained at desired value within, it is possible to contribute to the manufacture of the sheet glass of high-quality.It is additionally, since and can suppress curtain 6
Deformation, therefore without with curtain deformation adjustment operation together, replacing etc., it is possible to prevent the production loss during this, operation
Efficiency and economy are excellent.
Above-mentioned deformation prevents plate 62 (reinforcement unit) to be set to the 2mm that can allow relative to the carrying capacity of glass tape 2
～the thickness of 4mm, preferably about 3mm.And, deformation prevents the lower end of plate 62 to be set to the relation of the lower end in corrugated iron sheet portion 61
Deformation prevents the lower end of plate 62 to be arranged in the structure of top of lower end in corrugated iron sheet portion 61.Therefore, though broken on glass tape 2
Glass contacts with the bottom in corrugated iron sheet portion 61, it is also possible to deformation prevents from carrying constricted flow situation only energetically.
[the second embodiment]
It follows that the manufacture device of the float glass of explanation second embodiment of the present invention.Present embodiment have with
The technological thought that first embodiment is substantially same, below, illustrates centered by its discrepancy.For Zhi Jieliaodang, curtain
The structure of the reinforcement unit of son is different.The thickness of each component etc. are identical.
Fig. 3 shows the schematic configuration of the curtain manufacturing device of the float glass constituting the second embodiment.Fig. 3 A is
The II-II of Fig. 3 B is to regarding sectional view, and Fig. 3 B is the front view of curtain.Furthermore, Fig. 3 B is the carrying side relative to glass tape 2
To and side is observed downstream front view.
The curtain 600 of the second embodiment has reinforcement unit 620.Reinforcement unit 620 is configured to be arranged in glass tape 2
The frame unit 600B in the downstream in carrying direction forms to compare the frame unit of the upstream side in the carrying direction being arranged in glass tape
600A length.
That is, the frame unit 600B of the downstream side (back side) being arranged in corrugated iron sheet portion 610 has and prevents with described deformation
The height (length) that plate 62 is identical.Height is 240mm～300mm, preferably about 270mm.The lower end of frame unit 600B and ripple
The lower end in stricture of vagina iron plate portion 610 lower end of frame unit 600B can be configured to the lower end away from corrugated iron sheet portion 610 be 80mm～
120mm, preferably about 100mm.Therefore, even if the cullet of glass tape 2 contact, also with the bottom in corrugated iron sheet portion 610
Situation about can deform energetically and prevent carrying flowing to be prevented from.
The frame unit 600B constituting reinforcement unit 620 separates at substantial middle height and position (width) along its length
Certain interval and form multiple peristome 601B.This peristome 601B is utilized to be capable of the lightweight of curtain 600.
Constitute the component number of curtain 600 to the first embodiment manufacturing device of the float glass of the second embodiment
Few, assembling operation is simple.And, the area ratio first that reinforcement unit 620 contacts with the downstream side in corrugated iron sheet portion 610 is implemented
The reinforcement unit 62 of mode is big, therefore, it is possible to prevent the deformation etc. that the downstream side in corrugated iron sheet portion 610 bloats for a long time.The most also
The effect of explanation in the first embodiment can be played equally.
(variation)
Second embodiment is not limited thereto, it is possible to have the variation shown in Fig. 4.Fig. 4 illustrates that composition second is real
Execute the variation of the curtain manufacturing device of the float glass of mode.Fig. 4 A be the III-III of Fig. 4 B to regarding sectional view, Fig. 4 B is
The front view of curtain.Furthermore, Fig. 4 B is the front view that side is observed downstream relative to the carrying direction of glass tape 2.
That is, curtain 600 has extension 602B in unilateral end portion or both side ends position, so that frame unit 600B
Lower end becomes the height identical with the lower end in corrugated iron sheet portion 610.
As general rule, it is in the glass tape 2 of underface of curtain 600 than the narrow width of curtain 600, at the two of curtain 600
There is not glass tape 2 in the position directly below at side end position.That is, at both side ends position, it is also possible to glass tape 2 need not be considered very much
Carrying stop.Therefore, at both side ends position, constitute extension 602B at frame unit 600B and be formed as and corrugated iron sheet portion
The height that the lower end of 610 is identical, it is possible to improve the screening rate in dross box 30 further.
(manufacture method of float glass)
The manufacture method of the float glass of present embodiment except arrange in dross box 30 above-mentioned curtain 6 or 600 with
Outward, can be identical with the manufacture method of conventional float glass.Referring again to Fig. 1, illustrate to employ the curtain 6 of said structure or
The manufacture method of the float glass of 600.
Such as, after having obtained melten glass to the fusing kiln supply frit being set as about 1600 DEG C, this is made
Melten glass forms glass tape 2 in being flowed into the molten metal bath 10 filling molten tin.The glass tape 2 taken out of from molten metal bath 10
Carried by runner 4 in the dross box 30 being provided with above-mentioned curtain 6,600 and supply to leer 20.
The curtain 6,600 being arranged in dross box 30 effectively suppresses the deformation in downstream by reinforcement unit 62,620,
Therefore, it is possible to prevent the variation of the pressure in molten metal bath 10 and dross box 30 and keep desired value.Additionally, suppression extraneous gas
Intrusion from the entrance 23 of leer 20, it is possible to prevent from generating at glass tape 2, adhering to the situation of stannum oxide, using the teaching of the invention it is possible to provide a kind of
The sheet glass of the high-quality that defect is few.
Manufactured float glass uses the glass substrate as such as display, the cover glass of display, window glass
Glass.
In the case of manufactured float glass is normally used as the glass substrate of display, can be alkali-free glass.
Alkali-free glass is not comprise Na2O、K2O、Li2The glass of the alkali metal oxide of O etc..Alkali-free glass can be alkali metal
The total amount of the amount of oxide is below 0.1 mass %.
[embodiment]
Hereinafter, specifically understand the present invention by embodiment etc., but the present invention is not limited by these examples.
The present inventors have prepared not have deformation prevent the curtain (comparative example) of plate and be provided with and deform the curtain preventing plate
(curtain of the first embodiment) (embodiment), is respectively configured 4 months in the dross box of equivalent environment, it is thus identified that curtain deforms
With the pressure in dross box and the quality of manufactured sheet glass.And, the thickness of slab of manufactured sheet glass is 0.7mm
Below.
Frame unit, corrugated iron sheet portion that comparative example and embodiment use are stainless steel.The thickness of frame unit is 3mm, ripple
Stricture of vagina iron plate portion is the corrugated iron sheet of waveform shape, and its thickness is 0.15mm.The deformation of embodiment prevent plate employ thickness of slab 3mm,
The stainless steel of width 40mm, highly (length) 270mm.
Result after 4 months is as shown in Figure 5.
When paying close attention to thermal deformation, embodiment does not observes deformation in corrugated iron sheet portion.Deformation is not had to prevent the comparative example of plate
Confirm the deformation that the central part downstream side in corrugated iron sheet portion bloats significantly.
Along with the deformation in corrugated iron sheet portion, the gap between lower end and the glass tape to corrugated iron sheet portion is adjusted
Level jack adjust in an embodiment be only insert time 1 time, be not adjusted.In a comparative example, entered at 4 months
Go 16 times.
The replacing of curtain the most once also without.In a comparative example, it is deformed into after 2 months from the outset
Have to the degree carrying out the replacing of curtain.
Variation is not the most almost observed in the variation of the pressure in molten metal bath and dross box, it is possible to keep target
Pressure.In a comparative example, pressure changes significantly.
The quality of manufactured sheet glass does not observes that scum silica frost (attachment of stannum oxide), stripping, plate break in an embodiment
Split, the defect such as slab warping.In a comparative example, disadvantages mentioned above has been confirmed.
Additionally, in the curtain 600 shown in the second embodiment, do not observe bigger deformation, without more during growing yet
Change, in terms of the holding of the pressure in dross box, quality on also confirm as good.
As it has been described above, the curtain being configured in dross box is formed as knot by the device that manufactures of the float glass of the present invention
Structure: be provided with the reinforcement unit of said structure in the downstream in the carrying direction of glass tape.Therefore, it is possible to suppress molten metal bath and float
Pressure oscillation in slag case or the intrusion of extraneous gas, within remaining desired value by the pressure in dross box 30, it is possible to help
Manufacture in the sheet glass of high-quality.And, the deformation of curtain can be suppressed, therefore need not the adjustment accompanied with curtain deformation
Operation, replacing etc., it is possible to prevent the production loss during this, working performance and economy excellent.
This concludes the description of the embodiment etc. of manufacture method manufacturing device, float glass of float glass, but this
Bright it is not defined to above-mentioned embodiment etc., in the range of the purport of the present invention recorded at claims, it is possible to carry out each
Plant deformation, improvement.
Shape and the structure of the most above-mentioned reinforcement unit are not limited thereto, and can suppress curtain as long as have
The shape of deformation and structure.The such as downside for the corrugated iron sheet portion of composition curtain can also apply to prolong in the width direction
The shape stretched and the reinforcement unit of structure.
Claims (10)
1. a manufacture device for float glass, possesses: molten metal bath, houses motlten metal；Leer, at described motlten metal
On be configured to the glass tape of band plate-like and be moved in leer；Dross box, is arranged on described molten metal bath and described leer
Between；And curtain, it is arranged in this dross box, and is arranged in from described molten metal bath to the described leer described glass tape of carrying
The top of multiple runners,
The device that manufactures of described float glass is characterised by,
Described curtain is provided with reinforcement unit in the downstream in the carrying direction of described glass tape.
The manufacture device of float glass the most according to claim 1, wherein,
Described curtain has frame section and corrugated iron sheet portion,
The described frame section upper part in described corrugated iron sheet portion is positioned respectively at the carrying of the described glass tape in this corrugated iron sheet portion
The downstream in direction and upstream side, and clamp this corrugated iron sheet portion.
The manufacture device of float glass the most according to claim 1 and 2, wherein,
Described reinforcement unit be on the length direction of this curtain interval and multiple deformation is set and prevents plate.
The manufacture device of float glass the most according to claim 1 and 2, wherein,
The described frame section in the downstream being arranged in the carrying direction of described glass tape in described reinforcement unit is formed than configuration
Described framework minister at the upstream side in the carrying direction of this glass tape.
The manufacture device of float glass the most according to claim 2, wherein,
The lower end of described reinforcement unit is arranged in the top position of the lower end in described corrugated iron sheet portion.
The manufacture device of float glass the most according to claim 3, wherein,
Multiple described deformation prevent interval that plate separates 250mm～350mm from configuring.
The manufacture device of float glass the most according to claim 2, wherein,
The thickness of described reinforcement unit is thicker than described corrugated iron sheet portion.
8. according to the manufacture device of the float glass described in any one in Claims 1 to 5, wherein,
Described reinforcement unit has the thickness of 2.5mm～3.5mm.
The manufacture device of float glass the most according to claim 2, wherein,
Described corrugated iron sheet portion has the thickness of 0.1mm～0.2mm.
10. a manufacture method for float glass, the manufacture of the float glass described in any one in use claim 1～9
Device.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2015087019 | 2015-04-21 | ||
| JP2015-087019 | 2015-04-21 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106064878A true CN106064878A (en) | 2016-11-02 |
| CN106064878B CN106064878B (en) | 2020-06-05 |
Family
ID=57419180
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610245204.0A Active CN106064878B (en) | 2015-04-21 | 2016-04-19 | Float glass manufacturing device and float glass manufacturing method |
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| Country | Link |
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| JP (1) | JP6536427B2 (en) |
| KR (1) | KR20160125288A (en) |
| CN (1) | CN106064878B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20210061697A1 (en) * | 2018-05-17 | 2021-03-04 | AGC Inc. | Float glass production device and float glass production method |
| CN113121102A (en) * | 2020-01-15 | 2021-07-16 | Ａｇｃ株式会社 | Float glass manufacturing device and float glass manufacturing method |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110862219A (en) * | 2019-12-28 | 2020-03-06 | 蚌埠中光电科技有限公司 | Float glass tin bath broken plate lifting device |
| JP7404881B2 (en) | 2020-01-15 | 2023-12-26 | Ａｇｃ株式会社 | Float glass manufacturing equipment and float glass manufacturing method |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1942410A (en) * | 2004-04-07 | 2007-04-04 | 旭硝子株式会社 | Apparatus and method for manufacturing plate glass |
| CN201321431Y (en) * | 2008-12-25 | 2009-10-07 | 杭州蓝星新材料技术有限公司 | On-line coated environment adjusting device of lehr AO area of float glass production line |
| CN102046542A (en) * | 2008-06-06 | 2011-05-04 | 旭硝子株式会社 | Apparatus and method for producing plate glass |
| TW201425240A (en) * | 2012-10-31 | 2014-07-01 | Asahi Glass Co Ltd | Float glass production method and production device |
| WO2015025569A1 (en) * | 2013-08-22 | 2015-02-26 | 旭硝子株式会社 | Float glass production device and float glass production method using the same |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JPS4612693Y1 (en) * | 1968-11-26 | 1971-05-06 |
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- 2016-04-08 KR KR1020160043561A patent/KR20160125288A/en unknown
- 2016-04-19 CN CN201610245204.0A patent/CN106064878B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1942410A (en) * | 2004-04-07 | 2007-04-04 | 旭硝子株式会社 | Apparatus and method for manufacturing plate glass |
| CN102046542A (en) * | 2008-06-06 | 2011-05-04 | 旭硝子株式会社 | Apparatus and method for producing plate glass |
| CN201321431Y (en) * | 2008-12-25 | 2009-10-07 | 杭州蓝星新材料技术有限公司 | On-line coated environment adjusting device of lehr AO area of float glass production line |
| TW201425240A (en) * | 2012-10-31 | 2014-07-01 | Asahi Glass Co Ltd | Float glass production method and production device |
| WO2015025569A1 (en) * | 2013-08-22 | 2015-02-26 | 旭硝子株式会社 | Float glass production device and float glass production method using the same |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20210061697A1 (en) * | 2018-05-17 | 2021-03-04 | AGC Inc. | Float glass production device and float glass production method |
| EP3795544A4 (en) * | 2018-05-17 | 2022-03-02 | Agc Inc. | Float glass production device and float glass production method |
| US11760679B2 (en) * | 2018-05-17 | 2023-09-19 | AGC Inc. | Float glass production device and float glass production method |
| CN113121102A (en) * | 2020-01-15 | 2021-07-16 | Ａｇｃ株式会社 | Float glass manufacturing device and float glass manufacturing method |
| CN113121102B (en) * | 2020-01-15 | 2023-09-29 | Ａｇｃ株式会社 | Float glass manufacturing device and float glass manufacturing method |
Also Published As
| Publication number | Publication date |
|---|---|
| JP6536427B2 (en) | 2019-07-03 |
| KR20160125288A (en) | 2016-10-31 |
| JP2016204248A (en) | 2016-12-08 |
| CN106064878B (en) | 2020-06-05 |
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