CN105705465B - Method and apparatus for manufacturing glass plate - Google Patents
Method and apparatus for manufacturing glass plate Download PDFInfo
- Publication number
- CN105705465B CN105705465B CN201580000130.8A CN201580000130A CN105705465B CN 105705465 B CN105705465 B CN 105705465B CN 201580000130 A CN201580000130 A CN 201580000130A CN 105705465 B CN105705465 B CN 105705465B
- Authority
- CN
- China
- Prior art keywords
- glass plate
- heat
- slow cooling
- space
- glass
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 239000011521 glass Substances 0.000 title claims abstract description 320
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 46
- 238000000034 method Methods 0.000 title abstract description 10
- 238000010583 slow cooling Methods 0.000 claims abstract description 128
- 238000001816 cooling Methods 0.000 claims abstract description 32
- 238000003280 down draw process Methods 0.000 claims abstract description 8
- 238000009826 distribution Methods 0.000 claims description 58
- 238000004458 analytical method Methods 0.000 claims description 38
- 239000012530 fluid Substances 0.000 claims description 32
- 238000004088 simulation Methods 0.000 claims description 9
- 238000011144 upstream manufacturing Methods 0.000 claims description 8
- 239000004744 fabric Substances 0.000 claims description 2
- 230000000116 mitigating effect Effects 0.000 claims 1
- 230000000717 retained effect Effects 0.000 abstract 3
- 239000006060 molten glass Substances 0.000 abstract 1
- 230000004888 barrier function Effects 0.000 description 12
- 230000015572 biosynthetic process Effects 0.000 description 12
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 10
- 230000035882 stress Effects 0.000 description 10
- 238000002844 melting Methods 0.000 description 9
- 230000008018 melting Effects 0.000 description 9
- 238000005259 measurement Methods 0.000 description 7
- 230000009471 action Effects 0.000 description 5
- 238000004364 calculation method Methods 0.000 description 5
- 230000008602 contraction Effects 0.000 description 5
- 229910052697 platinum Inorganic materials 0.000 description 5
- 230000008859 change Effects 0.000 description 4
- 238000005352 clarification Methods 0.000 description 4
- 238000000265 homogenisation Methods 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 239000000203 mixture Substances 0.000 description 4
- 238000009790 rate-determining step (RDS) Methods 0.000 description 4
- 239000002994 raw material Substances 0.000 description 4
- 238000003756 stirring Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- 239000000956 alloy Substances 0.000 description 2
- 229910045601 alloy Inorganic materials 0.000 description 2
- 238000004422 calculation algorithm Methods 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 230000006870 function Effects 0.000 description 2
- 239000004973 liquid crystal related substance Substances 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 239000000758 substrate Substances 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- 239000011449 brick Substances 0.000 description 1
- 229910052681 coesite Inorganic materials 0.000 description 1
- 238000005056 compaction Methods 0.000 description 1
- 229910052593 corundum Inorganic materials 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 229910052906 cristobalite Inorganic materials 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000001934 delay Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000008642 heat stress Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000005764 inhibitory process Effects 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000003475 lamination Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 229910052682 stishovite Inorganic materials 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 230000008646 thermal stress Effects 0.000 description 1
- 229910052905 tridymite Inorganic materials 0.000 description 1
- 229910001845 yogo sapphire Inorganic materials 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B17/00—Forming molten glass by flowing-out, pushing-out, extruding or drawing downwardly or laterally from forming slits or by overflowing over lips
- C03B17/06—Forming glass sheets
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Re-Forming, After-Treatment, Cutting And Transporting Of Glass Products (AREA)
- Glass Compositions (AREA)
Abstract
The present invention relates to a method and an apparatus for manufacturing a glass plate. A method for producing a glass sheet by a down-draw method includes: a forming step of forming molten glass into a sheet-like glass plate; and a slow cooling step of carrying out slow cooling using a plurality of heaters for controlling the temperature in the slow cooling space, in the slow cooling space surrounded by the furnace wall while the glass sheet formed in the forming step is conveyed vertically downward. In the cooling step, the amount of heat retained by the glass sheet and the amount of space heat in the slow cooling space are determined together using the amount of heat released by the heater, the strain of the glass sheet is determined based on a predetermined relationship between the amount of retained heat and the strain of the glass sheet, and the amount of retained heat of the glass sheet is corrected by controlling the amount of heater heat, thereby suppressing the strain of the glass sheet.
Description
Technical field
The present invention relates to the systems of the manufacturing method and glass plate of a kind of warpage reducing glass plate and the glass plate of strain
Make device.
Background technology
In the past, using the method for manufacturing glass plate using glass tube down-drawing.In glass tube down-drawing, melten glass is made to flow into forming
After body, make top overflow of the melten glass from formed body.The melten glass of institute's overflow is flowed down along the two sides of formed body,
And collaborate in the lower end of formed body, thus become the glass plate of sheet.Then, glass plate is stretched downward by roller, and is cut
It is broken into defined length.
But as defined in being stretched downward and be cut into during length, glass plate is heat-shrinked, and is thus generated and is stuck up
Bent and strain (residual stress).This warpage and strain can be led when glass plate is used as such as liquid crystal display (LCD) substrate
Cause display defect.
In patent document 1, it recites for making the plate thickness of glass plate uniformly to reduce the glass of warpage and strain as possible
The manufacturing method of plate.Specifically, the manufacturing method of the glass plate of the cooling step including glass plate is recite, the cooling step
The temperature controlling step in terms of strain point of glass is carried out, which includes：First temperature controlling step, makes glass plate
Width direction end temperature it is lower than the temperature of the middle section between being clipped in the end, and make the middle section
Temperature becomes uniform；Second temperature rate-determining steps make the temperature of the width direction of the glass plate be lower from central portion towards end；
And the 3rd temperature controlling step make the end of the width direction of the glass plate in the temperature region near strain point of glass
Temperature gradient is not present with central portion.
Background technology document
Patent document
Patent document 1：International Publication No. 2012/133843
Invention content
[problems to be solved by the invention]
There is such a case：The glass plate obtained using the manufacturing method of the glass plate recorded in patent document 1
Warpage and strain are such required for being not formed into than previous method reduction, but the strain of the glass plate obtained.Therefore, originally
Inventor carries out making great efforts discussion and promotes research, as a result, it has been found that the reason of not forming the strain of glass plate as required exists
In there are the control accuracies of the temperature in the slow cooling space by glass plate slow cooling of correlativity not to fill for the strain with glass plate
Point, and find to control by heat caused by the heater to the temperature by control slow cooling space, glass can be reduced
The warpage of plate and strain, so as to complete the present invention.
[technical means to solve problem]
The present invention includes following form.
(form 1)
A kind of manufacturing method of glass plate, it is characterised in that：It is to utilize the manufacturing method of the glass plate of glass tube down-drawing, and packet
It includes：
Forming step moltens glass into the glass plate of sheet；And
Slow cooling step, by glass plate formed thereby in the forming step towards transporting below vertical direction and by furnace wall
In the slow cooling space surrounded, slow cooling is carried out using the multiple heaters controlled the temperature in the slow cooling space；
In the cooling step, the thermal discharge released using the heater, the guarantor that the glass plate is possessed
There is heat to be found out together with the space heat in the slow cooling space, and based on the strain for possessing heat and the glass plate
Predetermined relationship, find out the strain of the glass plate, and
The heat of possessing that the glass plate is corrected by controlling the heater heat, to inhibit the glass plate
Strain.
(form 2)
The manufacturing method of glass plate according to form 1, it is characterised in that：By the slow cooling space in the vertical side
To being divided into multiple spaces, and the temperature in space is controlled using multiple heaters in each space, and
Based on finding out respectively obtained by the strain of the glass plate in each space as a result, being put to the heater
The heater heat gone out is controlled.
(form 3)
The manufacturing method of glass plate according to form 1 or 2, it is characterised in that：The strain of the glass plate is to pass through
Thermal fluid analysis simulate and viscoelastic model analysis mode and find out.
(form 4)
The manufacturing method of glass plate according to form 3, wherein the slow cooling space is divided into the vertical direction
Multiple spaces, and
In thermal fluid analysis simulation, glass plate possesses heat when will go into each space in the multiple space
Amount is set as glass plate into fashionable heat of possessing, and possesses heat and the heating into fashionable glass plate by providing described
The thermal discharge of device, and find out the glass plate in each space in the multiple space of the glass plate possesses heat
Amount.
(form 5)
The manufacturing method of glass plate according to technical solution 4, wherein the glass plate is in the multiple spatial flow
When, thermal fluid analysis simulation is carried out in each space in the multiple space, in the multiple space from institute
The flow direction upstream side number for stating glass plate plays the later space of second segment, by glass plate described in the space abutted in upstream side
Temperature Distribution when outflow possesses heat as described into fashionable.
(form 6)
A kind of manufacturing device of glass plate, it is characterised in that：It is the manufacturing device for the glass plate for utilizing glass tube down-drawing, and includes
Building mortion, the building mortion have：
Formed body moltens glass into the glass plate of sheet；
Slow cooling space, by the glass plate shaped in the formed body towards transporting below vertical direction, and by furnace wall institute
It surrounds；And
Multiple heaters, control the temperature in the slow cooling space, and by the glass plate slow cooling；
The building mortion has：
First part, the thermal discharge released using the heater, by the glass plate possessed possess heat with
Space heat in the slow cooling space is found out together, and based on the predetermined pass for possessing heat and the strain of the glass plate
System, finds out the strain of the glass plate；And
Second part corrects the heat of possessing of the glass plate, to inhibit by controlling the heater heat
State the strain of glass plate.
[The effect of invention]
In accordance with the invention it is possible to be controlled by heat caused by the heater to the temperature by control slow cooling space
System, and reduce warpage and the strain of glass plate.
Description of the drawings
Fig. 1 is the partial process view of the manufacturing method of the glass plate of present embodiment.
Fig. 2 is that the manufacturing device of glass plate used in the manufacturing method of the main glass plate for indicating present embodiment is wrapped
The figure of the fusing device contained.
Fig. 3 is the diagrammatic elevational view of building mortion.
Fig. 4 is the summary side elevation of building mortion.
Fig. 5 is the control block diagram of control device.
Fig. 6 is the partial enlarged view of the diagrammatic elevational view of building mortion.
Fig. 7 is the outline sectional elevation of building mortion.
Fig. 8 is the sectional view on the A lines of Fig. 7.
Fig. 9 is the figure for the segment model for indicating the slow cooling space in present embodiment.
Figure 10 is the figure for the relationship for indicating common glass temperature and specific heat.
Figure 11 is to indicate that the stress of glass plate mitigates the figure of parameter.
Figure 12 is the figure for the structure Relaxation parameter for indicating glass plate.
Specific implementation mode
Hereinafter, manufacturing the present embodiment of glass plate to using the manufacturing device of glass plate on one side with reference to attached drawing on one side
The manufacturing method of glass plate illustrate.
(1) summary of the manufacturing method of glass plate
Fig. 1 is the partial process view of the manufacturing method of the glass plate of present embodiment.
Hereinafter, being illustrated to the manufacturing method of glass plate using Fig. 1.
As shown in Figure 1, glass plate is by comprising melting step ST1, clarification steps ST2, homogenization step ST3, forming
Step ST4, the various steps of cooling step ST5 and cut-out step ST6 and manufactured.Hereinafter, being said to these steps
It is bright.
In melting step ST1, glass raw material is heated and is melted.Glass raw material is for example comprising SiO2、
Al2O3Deng composition.Glass raw material after melting becomes melten glass.
In clarification steps ST2, melten glass is clarified.Specifically, by gas componant included in melten glass
It is discharged from melten glass, or gas componant included in melten glass is absorbed into melten glass.
In homogenization step ST3, melten glass is homogenized.In addition, in this step, to clarified melten glass
It is adjusted into trip temperature.
In forming step ST4, the glass of sheet is moltened glass into using glass tube down-drawing (for example, overflow downdraw)
Plate.
In cooling step ST5, the cooling of glass plate formed thereby in step ST4 is formed.In cooling step ST5
In, glass plate is cooled to the temperature close to room temperature.
In cutting off step ST6, the glass plate for having been cooled to close to the temperature of room temperature is cut by every specific length
Break and makes glass plate.
In addition, by every specific length be cut off glass plate further cut off after this, and carry out grinding/grinding,
It cleans, check and become glass plate, for flat-panel monitors such as liquid crystal displays.
(2) summary of the manufacturing device 100 of glass plate
Fig. 2 is the schematic diagram for the fusing device 200 that the manufacturing device 100 of main expression glass plate is included.Fig. 3 is glass
The diagrammatic elevational view for the building mortion 300 that the manufacturing device 100 of plate is included.Fig. 4 is the summary side elevation of building mortion 300.
Hereinafter, the manufacturing device 100 to glass plate illustrates.
The manufacturing device 100 of glass plate mainly have fusing device 200 (with reference to Fig. 2), building mortion 300 (with reference to Fig. 3~
Fig. 4) and disconnecting device 400 (not shown).
The composition of (2-1) fusing device 200
Fusing device 200 is the device for melt step ST1, clarification steps ST2 and homogenization step ST3.
As shown in Fig. 2, fusing device 200 have melt slot 201, defecator 202, stirred tank 203, first piping 204 and
Second piping 205.
It is the slot for melting glass raw material to melt slot 201.In melting slot 201, carry out melting step ST1.
Defecator 202 is the slot for removing bubble removing from the melten glass melted in melting slot 201.Defecator 202
The melten glass being sent into from melting slot 201 is further heated, the defoaming of the bubble in melten glass is thus promoted.Clear
In clear slot 202, clarification steps ST2 is carried out.
It includes container, rotary shaft, the Yi Jian of receiving melten glass that stirred tank 203, which has agitating device, the agitating device,
Mounted in the stirring blade of the rotary shaft.As container, rotary shaft and stirring blade, such as platinum family elements or the platinum such as platinum can be used
Container, rotary shaft and the stirring blade of the alloy of race's element, but it is not limited to this.Pass through the driving portions such as motor (not shown)
Driving so that rotary shaft is rotated, as a result, be mounted on rotary shaft stirring blade melten glass is stirred.In stirred tank 203
In, carry out homogenization step ST3.
First piping 204 and the second piping 205 are the pipings of the alloy for example comprising platinum family element or platinum family element.First
Piping 204 is the piping for connecting defecator 202 with stirred tank 203.Second piping 205 is by stirred tank 203 and building mortion
The piping of 300 connections.
The composition of (2-2) building mortion 300
Building mortion 300 is the device for step ST4 and cooling step ST5 is formed.
As shown in Figures 3 and 4, building mortion 300 has formed body 310, air-flow barrier component 320, chill roll 330, cold
But unit 340, draw roll 350a~350e and heater 360a~360e.Hereinafter, being illustrated to these compositions.
(2-2-1) formed body 310
Formed body 310 is the device for step ST4 is formed.
As shown in figure 3, formed body 310 is located at the upper section of building mortion 300, and there is following function, that is, utilize and overflow
Flow down the glass plate SG that the melten glass come from the stream of fusing device 200 is configured to sheet by daraf(reciprocal of farad).Formed body 310 is in vertical direction
The cross sectional shape of cut-out gained is wedge-type shape, and formed body 310 is for example made of refractory brick.
As shown in figure 4, in formed body 310, in the upstream of the path direction of the melten glass come from the stream of fusing device 200
Side is formed with supply mouth 311.Moreover, as shown in figure 4, in formed body 310, it is formed with along its length direction and is open upward
Groove 312.Groove 312 is with as the upstream side of the path direction from melten glass gradually becomes shallower as towards downstream side
Mode formed.
The melten glass come from fusing device 200 towards the stream of building mortion 300 flows to formed body 310 via supply mouth 311
Groove 312.
Top overflow of the melten glass in the groove 312 for flowing to the groove 312 of formed body 310, along formed body
310 two sides 313 flow down.Then, the melten glass flowed down along the two sides 313 of formed body 310 is under formed body 310
Collaborate and become glass plate SG in portion 314.
(2-2-2) air-flow barrier component 320, heat insulating member 41
As shown in Figures 3 and 4, air-flow barrier component 320 is disposed on the plate near the lower part 314 of formed body 310
Component.
Air-flow barrier component 320 is the glass plate SG substantially horizontally configured in the case where being flowed from the lower part of formed body 310 314
The both sides of thickness direction.Air-flow barrier component 320 is functioned as heat-insulated material.That is, air-flow barrier component 320 by by its
Upper and lower air separates and heat is inhibited to be moved to downside from the upside of air-flow barrier component 320.As shown in Figures 3 and 4, at shape dress
Setting 300 has the space i.e. formed body receiving portion 410 than 320 more top of air-flow barrier component, immediately below air-flow barrier component 320
Space, that is, formation zone 42a and formation zone 42a below space, that is, slow cooling area 420.Slow cooling area 420 has multiple slow cooling empty
Between 42b, 42c ..., 42f.Formation zone 42a, slow cooling space 42b~42f lamination downward above vertical direction successively.It is logical
It crosses and is surrounded by furnace wall and form formation zone 42a, slow cooling area 420 (slow cooling space 42b~42f), glass plate SG is in the formation zone
42a and slow cooling area 420 (slow cooling space 42b~42f) are mobile.
Heat insulating member 41 is configured in the lower section of following chill rolls 330 and the thickness side of glass plate SG in slow cooling area 420
To the heat-insulated material of the plate of both sides.Heat insulating member 41 is formed by by being separated than the space of air-flow barrier component 320 further below
Formation zone 42a and slow cooling space 42b~42f.For example, as shown in figure 4, heat insulating member 41 forms formation zone 42a and slow cooling space
42b.Moreover, heat insulating member 41 forms slow cooling space 42b and slow cooling space 42c.In this way, by by 41 institute of furnace wall and heat insulating member
It surrounds and forms slow cooling space 42b~42f.Each heat insulating member 41 inhibits the heat between upper and lower space mobile.For example, insulation part
Heat between the inhibition of part 41 formation zone 42a and slow cooling space 42b is mobile, moreover, heat insulating member 41 inhibits slow cooling space 42b and delays
Heat between cold space 42c is mobile.
(2-2-3) chill roll 330
Chill roll 330 is configured in the lower section of air-flow barrier component 320.Moreover, thickness of the configuration of chill roll 330 in glass plate SG
The both sides in direction are spent, and are configured in such a way that the both ends part of the width direction with glass plate SG is opposite.Chill roll 330 is
Air cooling is carried out using the air cooled tube in internal run-through.Glass plate SG is when by chill roll 330 as a result, with warp
The two side portions of the thickness direction for the glass plate SG that air cooled chill roll 330 contacts and the both ends part of its width direction
(hereinafter, the part is known as to ear R, L of glass plate SG) is cooled.The viscosity of the ear R, L is set to become specified value as a result,
(for example, 109.0Pool) more than.Herein, ear R, L refers in the width direction relative to ear R, L glass plate SG clipped
Entreat the plate thickness of region (central portion) thicker, the part with specific thickness, the middle section (central portion) can be used as product
The substantially uniform part of thickness of (glass substrate).Chill roll 330 also has the effect that：By transmitting chill roll drive motor
The driving force of 390 (with reference to Fig. 5), glass plate SG is stretched downward.By chill roll 330, glass plate SG is drawn into regulation
Thickness.
(2-2-4) cooling unit 340
Cooling unit 340 is, for example, air-cooled type cooling device, by chill roll 330 and thereunder by glass plate
The environment temperature of SG is cooled down.Moreover, cooling unit 340 glass plate SG width direction configured with multiple (for example, 3
It is a), and in its flow direction configured with multiple.Specifically, cooling unit 340 is with the surface of ear R, L with glass plate SG
Opposite mode configures one by one, and is configured with 1 in a manner of with the surface of middle section opposite direction.
(2-2-5) draw roll 350a~350e
Draw roll 350a~350e is to separate specified interval along the flow direction of glass plate SG in the lower section of chill roll 330
Ground is configured.Moreover, draw roll 350a~350e is arranged respectively at the both sides of the thickness direction of glass plate SG, and with glass
The mode of the both ends part opposite direction of the width direction of plate SG configures in the 42b~42f of slow cooling space.Moreover, draw roll 350a~
350e reaches the both sides of the thickness direction of the glass plate SG of specified value or more with the viscosity of ear R, L in chill roll 330 on one side
Part and the both ends of its width direction, which tap, touches, and on one side stretches glass plate SG downward.In addition, draw roll 350a~
350e is driven by transmitting the driving force of draw roll drive motor 391 (with reference to Fig. 5).The peripheral speed of draw roll 350a~350e
Circular velocity of the degree more than chill roll 330.The circular velocity of draw roll with configuration the flow direction of glass plate SG downstream side and
Become larger.That is, in multiple draw roll 350a~350e, the circular velocity of draw roll 350a is minimum, and the circular velocity of draw roll 350e is most
Greatly.
(2-2-6) heater (temperature control unit)
As shown in figure 3, heater (temperature control unit) 360a~360e be arranged respectively at the lower section of cooling unit 340 at
Shape area 42a and slow cooling space 42b~42f, to formation zone 42a and slow cooling space 42b, 42c ... environment temperature control.
Heater 360a~360e is functioned as cooling device below, that is, is controlled by using following control devices 500 defeated
(specifically, the environment temperature near glass plate SG for going out, and being drawn downward to the roller 350a~350e that is stretched is controlled
Environment temperature is set to increase).Moreover, as shown in FIG. 6 and 7, each heater 360a~360e is multiple with configuring in the width direction
The heat unit 361a, 362a of (for example, 3,6 etc.) ..., 366a.Heat unit 361a~366a is that heat is discharged into slow cooling sky
Between radiator body.Heat unit 361a~366a is constituted in a manner of being embedded in furnace wall and being endowed electric power respectively and is exothermic.Such as Fig. 6
It is shown, heat unit 361a~366a along glass plate SG width direction, both sides with glass plate SG in face of to position
It is arranged in a row.Heat unit 361a~the 366a being arranged in slow cooling space 42b is shown in Fig. 6, with same heat unit
Heater 360b~360e is to form defined temperature along the width direction of glass plate SG with the environment temperature near glass plate SG
The mode of distribution (hereinafter referred to as " temperature profile ") is configured.Thus, each heater 360a with heat unit~
360e controls the environment temperature of formation zone 42a and slow cooling space 42b~42f.In addition, each heater 360a~360e
Heat unit can also set be constructed as follows: not the width direction only with respect to glass plate SG configured with multiple, and relative to
The flow direction of glass plate SG is also configured with multiple.
Herein, the environment temperature for the glass plate SG that the roller 350a~350e that is stretched is drawn downward by heater 360a~
360e (heat unit 361a~366a) is controlled into trip temperature (specifically, to glass by controlling the environment temperature of glass plate SG
Glass plate SG is controlled into trip temperature), as a result, glass plate SG elapse to Hookean region from adhesive region by Viscoelastic Region
Cooling.
Moreover, near heat unit 361a~366a, the heat of the environment temperature in each region for detecting glass plate SG is configured
Galvanic couple unit 380 (with reference to Fig. 5~Fig. 7).Slow cooling of the thermocouple unit 380 to changing by the heat release of heat unit 361a~366a
The environment temperature of space 42b~42f is measured.Control device 500 obtains the environment temperature measured by thermocouple unit 380,
And based on acquired environment temperature to the thermal discharge for the heat unit 361a~366a having from heater 360a~360e
It is controlled.In 314 region below of the lower part of formed body 310, that is, formation zone 42a and slow cooling space 42b~42f, cooling is utilized
The step that roller 330, cooling unit 340, heater 360a~360e (heat unit 361a~366a) cool down glass plate SG is cold
But step ST5.
(2-3) disconnecting device 400
In disconnecting device 400, cut-out step ST6 is carried out.Disconnecting device 400 will flow down in building mortion 300
The device that glass plate SG is cut off from the vertical direction in the length face relative to glass plate SG.As a result, the glass plate SG of sheet at
For multiple glass plate SG with specific length.Disconnecting device 400 is driven (with reference to Fig. 5) by disconnecting device drive motor 392
It is dynamic.
(3) control device 500
Fig. 5 is the control block diagram of control device 500.
Control device 500 includes CPU (Central Processing Unit, central processing unit), ROM (Read-Only
Memory, read-only memory), RAM (Random-Access Memory, random access memory), hard disk etc., and as to glass
Control unit that the various machines that the manufacturing device 100 of glass plate is included are controlled and function.
Specifically, the manufacturing device 100 of glass plate or building mortion 300 have control device 500, as shown in figure 5, should
Control device 500 receive glass plate the various sensors (for example, thermocouple unit 380 etc.) that are included of manufacturing device 100 or
The signal of switch (for example, main power switch 381 etc.) etc., inputted from operating personnel via input unit (not shown) etc. it is defeated
Enter instruction, and carries out cooling unit 340, heater 360a~360e (heat unit 361a~366a), the action to chill roll 330
The chill roll drive motor 390 controlled, the draw roll drive motor that the action of draw roll 350a~350e is controlled
391, the control of disconnecting device drive motor 392 that the action of disconnecting device 400 is controlled etc..
(4) the temperature control in cooling step ST5
Cooling step ST5 includes the temperature that control device 500 controls glass plate SG by controlling chill roll 330
Degree.In turn, cooling step ST5 includes carrying out temperature controlled temperature controlling step to glass plate SG.Specifically, in temperature control
In step processed, heat unit 361a~366a possessed by cooling unit 340 and heater 360a~360e is controlled and into
The control of the environment temperature of row glass plate SG, thus controls the temperature of glass plate SG.
Moreover, cooling step ST5 includes the heat rate-determining steps controlled the thermal discharge of heat unit 361a~366a,
So that the temperature of glass plate SG is entered defined temperature range in defined height and position (defined slow cooling space), and makes glass plate
The temperature of SG has defined Temperature Distribution in the width direction of glass plate SG.That is, the temperature of glass plate SG is in the glass
It is controlled in the flow direction of plate SG and width direction.
For the heat rate-determining steps, it is described hereinafter by taking the action of heat unit 361a~~366a as an example.
In heat rate-determining steps, the heat caused by heat unit 361a~366a is determined.
Below to determining that the sequence of heat caused by heat unit 361a~366a illustrates.I) control unit 500
Heat unit 361a~366a is initially set defined set temperature, and in slow cooling space 42b~42f (slow cooling area 420),
The environment temperature near glass plate SG is set to form defined temperature profile (temperature in the width direction of glass plate SG
profile)。
Ii) find out that glass plate SG possessed possesses heat (temperature of glass plate SG), the 42b~42f (slow cooling of slow cooling space
Area 420) in environment temperature.
Iii) be based on the ii) in the temperature of calculated glass plate SG, the environment temperature in the 42b~42f of slow cooling space,
The Temperature Distribution for being formed by glass plate SG, Strain Distribution are found out, and to by heat unit in a manner of reducing calculated strain
Heat caused by 361a~366a (set temperature) is controlled.
Below in order to (the setting temperature of heat unit 361a~366a of the heat caused by heat unit 361a~366a
Degree) method that is controlled and find out the Temperature Distribution of glass plate SG illustrates.This method using thermal fluid analysis simulate and
Viscoelasticity analysis is simulated.
＜ thermal fluid analysis simulates ＞
Thermal fluid analysis is carried out in thermal fluid analysis simulation, such as using the discrete model based on Finite element method.
In thermal fluid analysis, heater heat caused by heat unit 361a~366a is provided, that is, provides heat unit 361a~366a's
Set temperature, and the Temperature Distribution of the Temperature Distribution of the atmosphere of slow cooling space 42b~42f and glass plate SG is set as unknown number,
And find out glass plate SG in slow cooling space universe (slow cooling area) possesses heat i.e. Temperature Distribution.Simulation is under the following conditions
Implement.
1. model
By one section of slow cooling space 42b in the multistage that slow cooling area 420 is separated by the flow direction of glass plate SG as
Grid model and it is discrete, and find out using thermal fluid analysis the Temperature Distribution of the glass plate SG in first segment slow cooling space 42b.This
When enter slow cooling space 42b glass plate SG Temperature Distribution it is predefined.Moreover, by first segment slow cooling space 42b
Glass plate SG Temperature Distribution in the Temperature Distribution of width direction when being flowed out from slow cooling space 42b be defined as entering second
The Temperature Distribution of the glass plate SG of section slow cooling space 42c.In this way, using the temperature of glass plate SG when entering each section of slow cooling space
Degree is distributed and finds out the Temperature Distribution of the glass plate in each slow cooling space.So to the temperature of the glass plate SG in the universe of slow cooling space
Degree distribution is simulated.
Fig. 9 indicates to be seen as the model of first segment slow cooling space 42b from the flow direction of glass plate SG.Provide enter it is slow
Heater heat (the setting for possessing heat, heater 360a (heat unit 361a~366a) of glass plate SG when cold space 42b
Temperature), and by the environment temperature one in the Temperature Distribution of the glass plate SG in first segment slow cooling space 42b and slow cooling space 42b
And it finds out.Moreover, in the slow cooling space after the second segment than first segment further downstream, glass is found out in the same manner as first segment
The Temperature Distribution of plate SG, and the Temperature Distribution of calculated multiple glass plate SG is connected together, thus find out slow cooling space 42b
The Temperature Distribution of the glass plate SG of~42f whole (slow cooling area 420).
Glass plate SG's possesses heat, (2) heater 360a (heat unit 361a when consideration (1) enters slow cooling space 42b
~366a) heater heat (set temperature), environment temperature in the 42b of (3) slow cooling space influence, it is empty to first segment slow cooling
Between the Temperature Distribution of glass plate SG in 42b analyzed.For (1)~(3), it is as described below as illustrate.
(1) glass plate SG's possesses heat when entering slow cooling space 42b
The heat (Temperature Distribution) of possessing of glass plate SG is to use that the position for entering slow cooling space 42b in glass plate SG is arranged
The temperature sensor (not shown) of (upstream side of slow cooling space 42b) is measured.Because of the melting glass flowed out from formed body 310
The amount of glass is fixed, so the flow (conveyance speed) of glass plate SG is fixed, can be found out according to measured temperature (Temperature Distribution)
Glass plate SG's possesses heat when entering slow cooling space 42b.Moreover, it is also possible to according to the flow of glass plate SG, flow into forming
The temperature of the melten glass of body 310, find out glass plate SG when entering slow cooling space 42b possesses heat (Temperature Distribution).
(2) thermal discharge (set temperature) of heater 360a (heat unit 361a~366a)
Set temperature of the thermal discharge of each heat unit 361a~366a set by control device 500 and change.It is based on
The heater heat that each heat unit 361a~366a of set temperature is released be according to supply unit and the heat unit that sets
The measurement result of the kilowatt meter (not shown) of 361a~366a is found out.Therefore, the thermal discharge of heat unit 361a~366a is carried out
When control, the electric power assigned to each heat unit 361a~366a is controlled.It herein, will be to the heater of slow cooling space 42b
The initially set set temperature of heat unit 361a~366a institutes possessed by 360a is set as such as 700 DEG C.Heat unit 361a~
The thermal discharge of 366a can be all identical, can also assign and be distributed to thermal discharge.Moreover, initially set 700 DEG C of the temperature of institute is example
Show, therefore the temperature of heat unit 361a~366a can also be used as unknown quantity and be obtained in the form of result of calculation.It can also incite somebody to action
The inflow temperature of glass plate SG is set as such as 700 DEG C and is calculated, and reaches good with the temperature of observed temperature and result of calculation
Good consistent mode sets the inflow temperature of glass plate SG.To the average current of heat unit 361a~366a of institute's temperature setting
(A) voltage (V) power factor is practically measured, and thus finds out thermal discharge (W), and is scaled heat release density (W/m3)
Using as design conditions.Temperature is obtained in the form of result of calculation (solution), therefore can be by by result of calculation and set temperature
Be compared, and by reach it is good it is consistent in a manner of change condition repeatedly and find out.
(3) environment temperature in the 42b of slow cooling space
Possess heat and the heater heat of heat unit 361a~366a, slow cooling space according to what glass plate SG was possessed
Environment temperature in 42b changes.Environment temperature in the 42b of slow cooling space is by assuming the atmosphere of slow cooling space 42b
For the perfect gas of incompressibility, and the heat caused by the free convection caused by buoyancy and the free convection is transmitted and is included in
It transmits in identical thermal fluid analysis model with the heat of glass plate SG and solves with coupling.In addition, in the present embodiment, will delay
Environment temperature in cold space 42b is solved as the unknown number in thermal fluid analysis, can also be replaced, be passed through thermocouple
Unit 380 is measured the environment temperature in the 42b of slow cooling space, finds out heat (the slow cooling sky kept in the 42b of slow cooling space
Between environment temperature in 42b), and provided using the heat as the environment temperature in the slow cooling space 42b in thermal fluid analysis,
To calculate the Temperature Distribution of glass plate SG.
2. physics value
Physics value about the material for constituting glass plate SG and slow cooling space 42b is as described below.
A. glass plate SG
I) density：2500[kg/m3]。
Ii) thermal conductivity：1.1278[W/mK].
Iii) specific heat：As shown in Figure 10.
B. draw roll 350a~350e (stainless steel SUS304)
Ii) thermal conductivity：16.0[W/mK](27℃)、25.7[W/mK](727℃).
C. air-flow barrier component 320, heat insulating member 41, furnace wall (heat-insulated material)
I) thermal conductivity：0.04~0.3 [W/mK].
3. design conditions
Due to calculating (calculating of time indeclinable system) for stable state, so using the algorithm of thermal fluid analysis.Flowing
It is set as stable, using SIMPLE algorithms, the flowing of fluid, convective heat transfer, radiant heat transfer three is coupled, and using single
One solver solves.For solver, commercially available software can be used, well known general thermal fluid analysis can be used
Software.Herein, in thermal fluid analysis, computationally glass plate SG is handled as fluid, because of the movement of glass plate SG
Speed is consistent with conveyance speed and it is known that so so that the flow velocity of glass plate SG region entireties is fixed and is calculated.Moreover, air
It assumes that the perfect gas for incompressibility, and the heat caused by free convection is transmitted comprising in the calculation.
It is analyzed by conditions above transitivity value is input to general thermal fluid analysis software, first can be found out
The Temperature Distribution of glass plate SG in section slow cooling space 42b.
Next, finding out the Temperature Distribution of the glass plate SG in the later slow cooling space 42c~42f of second segment.About
Two sections of later slow cooling space 42c~42f, also make discrete grid model in the same manner as the 42b of slow cooling space.Specifically,
In grid model, the heat of possessing for being flowed into the glass plate SG of slow cooling space 42c~42f is used as thermal fluid analysis
Glass plate SG's when as a result calculated slave the preceding paragraph slow cooling space outflow possesses heat (Temperature Distribution).That is, for example, for
Enter the glass plate SG of second segment slow cooling space 42c possesses heat, calculated by the result used as thermal fluid analysis
When having found out the glass plate SG of temperature (Temperature Distribution) in first segment slow cooling space 42b and having been flowed out from first segment slow cooling space 42b
Glass plate SG's possesses heat.
Moreover, being set as the set temperature for being arranged in heat unit 361a~366a of second segment slow cooling space 42c than upper one
Low 5 DEG C~30 DEG C of the temperature of section, is preferably set to low 15 DEG C of temperature, one section is often promoted towards flow direction, set temperature is set
For the temperature reduced with 5 DEG C~30 DEG C of range, it is preferably set to reduce by 15 DEG C of temperature every time.
For finding out the glass plate SG universes in the later slow cooling space 42c~42f of second segment by thermal fluid analysis
Temperature Distribution condition and first segment slow cooling space 42b in glass plate SG Temperature Distribution used in condition transitivity value
It is identical, so omitting the description.
In this way, in thermal fluid analysis simulation, glass plate when entering each of multiple slow cooling spaces is possessed into heat
Amount is set as glass plate and possesses heat into fashionable, provides the thermal discharge for possessing heat and heater into fashionable glass plate, thus
Glass plate of the glass plate in each of multiple cooling spaces can be found out possesses heat.At this point, thermal fluid analysis mould
Quasi- is to be carried out in each of multiple cooling spaces, and the flow direction of the slave glass plate in multiple cooling spaces is upper
Trip side is seen as in the later cooling space of second segment, when can flow out glass plate from the cooling space abutted in upstream side
Temperature Distribution is used as possessing heat into fashionable.
Thus, the Temperature Distribution of the glass plate SG in each section of slow cooling space is obtained by thermal fluid analysis, and it is logical
Cross by the Temperature Distribution of the glass plate SG in each section of slow cooling space it is multiple connect together, multistage slow cooling space can be obtained
The Temperature Distribution of glass plate SG in 42c~42f universes (slow cooling area 420).
＜ viscoelasticity analysis simulates ＞
Use the glass in the slow cooling space 42b~42f universes (slow cooling area 420) obtained by the thermal fluid analysis
Plate SG's possesses heat (Temperature Distribution), and the Strain Distribution of glass plate SG is found out by viscoelastic model analysis.
Specifically, by the glass plate SG in the slow cooling space 42b~42f universes obtained by the thermal fluid analysis
Temperature Distribution, the physics value of the glass plate SG and the stress of glass plate SG mitigate parameter and structure Relaxation parameter and be input to
Well known analysis software and analyzed, thus carry out viscoelastic model analysis, find out the Strain Distribution of glass plate.It is specific next
Say, consider stress mitigate parameter, structure Relaxation parameter and find out Strain Distribution.In the 42b~42f of slow cooling space, sometimes in glass
It is cooled down in the state that the temperature of glass plate SG is uneven in the direction of the width, continuous real estate heat stress due to shrinking difference, and
And stress constantly mitigates.Therefore, it in order to evaluate the residual stress for remaining in glass plate SG, not only needs to carry out based on contraction
Thermal stress calculates, and needs to consider that the stress that stress reduces at any time mitigates.Therefore, by using the viscous of structure analysis software
Elastic model come consider stress mitigate.Moreover, in order to find out structure Relaxation parameter, it is also contemplated that received caused by structural relaxation
Contracting.The contraction of glass plate SG has the contraction (thermal that the volume caused by thermal expansion is reduced as temperature reduces
Expansion), as the thermal contraction (compaction) shunk caused by structural relaxation.Due to by glass plate SG in high temperature
Volume can reduce when lower long-time is placed, so being set to structure Relaxation parameter.By for structural relaxation parameter
Test experiment, cycle-index are to harmonize structure Relaxation parameter in a manner of to meet the contraction result being repeatedly heat-treated.
According to viscoelasticity analysis as a result, the Temperature Distribution of glass plate and the strain of glass plate have correlativity, therefore
The correlativity can be found out in advance, and is based on the correlativity, and glass is found out according to the temperature (Temperature Distribution) of glass plate SG
The Strain Distribution of plate SG.The stress of glass plate SG mitigates parameter and the structure Relaxation parameter picture passes through the measurement in experiment
And it is shown in Figure 11 and Figure 12 is such.
According to case above, glass plate SG can be found out using thermal fluid analysis and viscoelastic model analysis answers variation
Cloth.
The Strain Distribution of the glass plate SG found out using the method is according to by the setting of heat unit 361a~366a
The thermal discharge that temperature is set as 700 DEG C of original state is found out, by making the set temperature of heat unit 361a~366a change,
The Strain Distribution of glass plate SG also changes.Due to finding out heat release by using thermal fluid analysis and viscoelastic model analysis
The relationship of the variation of the set temperature of portion 361a~366a and the strain variation of glass plate SG, therefore can be by inhibit glass
The mode of the Strain Distribution of plate SG controls the set temperature of heat unit 361a~366a, with this come reduce glass plate SG warpage and
Strain.
Alternatively, it is also possible to be arranged device for measurement of strain (strain measurement sensor) in slow cooling space 42b~42f and to glass
The warpage of glass plate SG and strain, Temperature Distribution are measured.Strain measurement and temperature measuring (thermocouple) they are different measurement, but
The two can be measured in identical place.
Moreover, the heat (Temperature Distribution) of possessing of glass plate SG can also be due to the roller 350a~350e that is stretched is clamped
Variation.At this point, the heat detection sensor having using thermocouple unit 380 or using draw roll 350a~350e is to drawing
The heat (Temperature Distribution) of possessing that roller 350a~350e has is stretched to be measured.By using the guarantor of draw roll 350a~350e
There is heat and glass plate SG's to possess both heats to be simulated, it is also possible to obtain the warpage of glass plate SG and strain.
It specifically, can also be to the model in each slow cooling space plus stretching when carrying out the thermal fluid analysis simulation
The grid model of roller 350a~350e determines that the grid model of draw roll 350a~350e is possessed according to the measurement result
Heat, and solve the environment temperature in slow cooling space and the Temperature Distribution of glass plate SG by assigning set temperature to heat unit.
The Temperature Distribution of glass plate SG can be more accurately found out as a result,.
More than, the manufacturing method of glass plate and the manufacturing device of glass plate of the present invention are described in detail, certainly,
The present invention is not limited to the embodiment, can also carry out without departing from the spirit and scope of the invention various improvement or
Change.
[explanation of symbol]
The manufacturing device of 100 glass plates
310 formed bodies
The lower part of 314 formed bodies
330 chill rolls (roller)
350a~350e draw rolls (roller)
360a~360e heaters
361a~366a heat units
420 slow cooling areas
42a formation zones
42b~42f slow cooling space
SG glass plates
Claims (6)
1. a kind of manufacturing method of glass plate, it is characterised in that：It is the manufacturing method for the glass plate for utilizing glass tube down-drawing, and includes：
Forming step moltens glass into the glass plate of sheet；And
Slow cooling step is wrapped towards conveyance below vertical direction and by glass plate formed thereby in the forming step by furnace wall
In the slow cooling space enclosed, slow cooling is carried out using the multiple heaters controlled the temperature in the slow cooling space；
In the slow cooling step, the thermal discharge released using the heater possesses heat by what the glass plate was possessed
Amount is found out together with the space heat in the slow cooling space, and possesses the pre- of heat and the strain of the glass plate based on described
Determine relationship and finds out the strain of the glass plate, and
The heat of possessing that the glass plate is corrected by controlling the heater heat, to inhibit the glass plate
Strain.
2. the manufacturing method of glass plate according to claim 1, it is characterised in that：
The slow cooling space is divided into multiple spaces in the vertical direction, and uses multiple heaters to sky in each space
Interior temperature is controlled, and
Based on finding out respectively in each space obtained by the strain of the glass plate as a result, being released to the heater
Heater heat is controlled.
3. the manufacturing method of glass plate according to claim 1 or 2, it is characterised in that：
The strain of the glass plate is found out by thermal fluid analysis simulation and viscoelastic model analysis mode.
4. the manufacturing method of glass plate according to claim 3, wherein
The slow cooling space is divided into multiple spaces in the vertical direction,
In thermal fluid analysis simulation, the heat of possessing of glass plate is set when will go into each space in the multiple space
It is glass plate into fashionable heat of possessing, and described possesses heat and the heater into fashionable glass plate by providing
The thermal discharge, and find out the glass plate in each space in the multiple space of the glass plate possesses heat.
5. the manufacturing method of glass plate according to claim 4, wherein the glass plate is in the multiple spatial flow,
Thermal fluid analysis simulation be carried out in each space in the multiple space, and in the multiple space from described
The upstream side of the flow direction of glass plate is seen as the later space of second segment, by glass described in the space abutted in upstream side
Temperature Distribution when plate flows out possesses heat as described into fashionable.
6. a kind of manufacturing device of glass plate, it is characterised in that：It is the manufacturing device for the glass plate for utilizing glass tube down-drawing, and includes into
Shape dress is set, which has：
Formed body moltens glass into the glass plate of sheet；
Slow cooling space, glass plate formed thereby is by towards transporting below vertical direction in the formed body, and is surrounded by furnace wall；
And
Multiple heaters control the temperature in the slow cooling space, and by the glass plate slow cooling；
The building mortion will be according to the glass of the inhomogeneous cooling due to the glass plate in the slow cooling space
Plate shrinks difference and generates, and based on passing through at any time and the Strain Distribution of the stress mitigated and the glass plate obtained, with
Use point of the width direction of the reconstruction results for mitigating the Strain Distribution that parameter reproduces and the glass plate for possessing heat
Cloth is set to associated correlativity, and has：
First part, the thermal discharge released using the heater are possessed the glass plate in the slow cooling space
The glass plate for possessing heat width direction distribution, find out together with the space heat in the slow cooling space, and
Possess the distribution of heat described in find out, is based on the correlativity, finds out the Strain Distribution of the glass plate；And
Second part, that the glass plate is corrected by the thermal discharge released to the heater controls possesses heat
Distribution, to inhibit the strain of the glass plate.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2014093275 | 2014-04-30 | ||
| JP2014-093275 | 2014-04-30 | ||
| PCT/JP2015/062918 WO2015166972A1 (en) | 2014-04-30 | 2015-04-30 | Method for manufacturing glass plate, and device for manufacturing glass plate |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105705465A CN105705465A (en) | 2016-06-22 |
| CN105705465B true CN105705465B (en) | 2018-09-11 |
Family
ID=54358697
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201580000130.8A Active CN105705465B (en) | 2014-04-30 | 2015-04-30 | Method and apparatus for manufacturing glass plate |
Country Status (5)
| Country | Link |
|---|---|
| JP (1) | JP5937759B2 (en) |
| KR (1) | KR101798305B1 (en) |
| CN (1) | CN105705465B (en) |
| TW (1) | TWI592373B (en) |
| WO (1) | WO2015166972A1 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6940991B2 (en) * | 2017-06-30 | 2021-09-29 | ＡｖａｎＳｔｒａｔｅ株式会社 | Glass sheet manufacturing method |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2001007372A1 (en) * | 1999-07-22 | 2001-02-01 | Nh Techno Glass Corporation | Production method and device for sheet glass, and liquid crystal device |
| WO2011047008A1 (en) * | 2009-10-14 | 2011-04-21 | Corning Incorporated | Method and apparatus for controlling sheet thickness |
| CN102596828A (en) * | 2010-09-30 | 2012-07-18 | 安瀚视特股份有限公司 | Glass sheet manufacturing method |
| CN103253848A (en) * | 2011-06-30 | 2013-08-21 | 安瀚视特控股株式会社 | Glass plate manufacturing method and glass plate manufacturing device |
| CN103359913A (en) * | 2012-04-06 | 2013-10-23 | 安瀚视特控股株式会社 | Making method of glass substrate |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2008036227A1 (en) * | 2006-09-20 | 2008-03-27 | Corning Incorporated | Temperature compensation for shape-induced in-plane stresses in glass substrates |
| CN103183462B (en) | 2011-03-31 | 2016-01-20 | 安瀚视特控股株式会社 | The manufacture method of sheet glass |
-
2015
- 2015-04-30 CN CN201580000130.8A patent/CN105705465B/en active Active
- 2015-04-30 JP JP2015522814A patent/JP5937759B2/en active Active
- 2015-04-30 KR KR1020157016994A patent/KR101798305B1/en not_active Expired - Fee Related
- 2015-04-30 WO PCT/JP2015/062918 patent/WO2015166972A1/en active Application Filing
- 2015-04-30 TW TW104113965A patent/TWI592373B/en active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2001007372A1 (en) * | 1999-07-22 | 2001-02-01 | Nh Techno Glass Corporation | Production method and device for sheet glass, and liquid crystal device |
| WO2011047008A1 (en) * | 2009-10-14 | 2011-04-21 | Corning Incorporated | Method and apparatus for controlling sheet thickness |
| CN102596828A (en) * | 2010-09-30 | 2012-07-18 | 安瀚视特股份有限公司 | Glass sheet manufacturing method |
| CN103253848A (en) * | 2011-06-30 | 2013-08-21 | 安瀚视特控股株式会社 | Glass plate manufacturing method and glass plate manufacturing device |
| CN103359913A (en) * | 2012-04-06 | 2013-10-23 | 安瀚视特控股株式会社 | Making method of glass substrate |
Also Published As
| Publication number | Publication date |
|---|---|
| KR101798305B1 (en) | 2017-11-15 |
| TW201545998A (en) | 2015-12-16 |
| KR20150140627A (en) | 2015-12-16 |
| JPWO2015166972A1 (en) | 2017-04-20 |
| CN105705465A (en) | 2016-06-22 |
| WO2015166972A1 (en) | 2015-11-05 |
| JP5937759B2 (en) | 2016-06-22 |
| TWI592373B (en) | 2017-07-21 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP5758612B2 (en) | Method and apparatus for thermal conditioning of molten glass | |
| KR101927543B1 (en) | Glass plate production method | |
| US8033137B2 (en) | Process to preserve isopipe during coupling | |
| CN104986943B (en) | By controlling the method and apparatus for heating manufacture sheet glass | |
| JP6445141B2 (en) | Manufacturing method of glass substrate | |
| TWI705943B (en) | Manufacturing method of glass substrate | |
| CN105705465B (en) | Method and apparatus for manufacturing glass plate | |
| JP7085546B2 (en) | Methods and equipment for compensating for dimensional fluctuations in the molding body | |
| JP5921742B2 (en) | Glass plate manufacturing method and glass plate manufacturing apparatus | |
| CN103880271A (en) | Molten glass conveying method and outflow material path | |
| JP6940991B2 (en) | Glass sheet manufacturing method | |
| CN108409110A (en) | The manufacturing method of glass substrate | |
| CN104961327B (en) | Method for producing glass plate, and apparatus for producing glass plate | |
| KR20120021275A (en) | Method for controlling stress in a heated refractory ceramic body | |
| JP2017048102A (en) | Manufacturing method of glass substrate, and manufacturing apparatus of glass substrate | |
| JP2019064860A (en) | Method and apparatus for manufacturing glass substrate |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |