CN107750240A - Glass manufacturing equipment and method with relief chamber - Google Patents
Glass manufacturing equipment and method with relief chamber Download PDFInfo
- Publication number
- CN107750240A CN107750240A CN201680034400.1A CN201680034400A CN107750240A CN 107750240 A CN107750240 A CN 107750240A CN 201680034400 A CN201680034400 A CN 201680034400A CN 107750240 A CN107750240 A CN 107750240A
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- China
- Prior art keywords
- passage
- entrance point
- compression end
- forming apparatus
- 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.)
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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
- C03B17/064—Forming glass sheets by the overflow downdraw fusion process; Isopipes therefor
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- 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
- C03B17/061—Forming glass sheets by lateral drawing or extrusion
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B5/00—Melting in furnaces; Furnaces so far as specially adapted for glass manufacture
- C03B5/16—Special features of the melting process; Auxiliary means specially adapted for glass-melting furnaces
- C03B5/26—Outlets, e.g. drains, siphons; Overflows, e.g. for supplying the float tank, tweels
- C03B5/265—Overflows; Lips; Tweels
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P40/00—Technologies relating to the processing of minerals
- Y02P40/50—Glass production, e.g. reusing waste heat during processing or shaping
- Y02P40/57—Improving the yield, e-g- reduction of reject rates
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Joining Of Glass To Other Materials (AREA)
- Glass Compositions (AREA)
Abstract
A kind of glass forming apparatus and method include glass forming apparatus, the groove that the glass forming apparatus has entrance point and compression end and extended between entrance point and compression end.The equipment is additionally included in the passage below groove, and the passage extends at least in part between entrance point and compression end.Atmosphere in passage is maintained at lower than the atmosphere pressures around glass forming apparatus.
Description
The application is according to U.S. of the Serial No. 62/174,706 for requiring to submit on June 12nd, 2015 of 35U.S.C. § 119
The rights and interests of the priority of state's provisional application, herein based on disclosure of which, and it is by reference that this application is complete
Text is included herein.
Background
Technical field
The disclosure relates generally to glass manufacturing equipment and method, systems the glass manufacture with relief chamber
Equipment.
Background technology
Manufacture glass material --- for example for showing the flat of application (including LCD-TV and portable electric device)
Face glass --- method include fusion drawing method, wherein, glass overflow glass forming apparatus relatively each side, Ran Hou
Converge to form sheet glass below the bottom or root of device.Such method can produce the relative thin with great surface quality
Flat glass piece, this is intended for the desired characteristic of the glass of display application.
In such manufacturing process, constantly it is expected to increase the flow rate of melten glass.However, flow density increase can
Cause some technological challenges related to glass forming apparatus.These technological challenges may include, for example, glass forming apparatus with
The deformation increase that time is subjected to, this increased deformation are sometimes referred to as the deformation of creep.The deformation of creep meeting of glass forming apparatus
Having for example causes melten glass flowing distribution and thickness distribution that undesirable change occurs.Finally, the deformation of creep can be because of melting
The thickness distribution of glass can not be maintained in specification and result in the need for changing glass forming apparatus.It is therefore, it is desirable to higher reaching
Melten glass flowing speed while, make the deformation of creep degree of glass forming apparatus minimum.
The content of the invention
Disclosed herein is the equipment for producing glassware.The equipment includes entrance point and compression end and in import
The groove extended between end and compression end.The equipment is additionally included in the passage below groove, and the passage is in entrance point and compression end
Between extend at least in part.Atmosphere in passage is maintained at lower than the atmosphere pressures around glass forming apparatus.
Also disclosed herein is production glassware method.Methods described includes melten glass guiding to forming of glass dress
Put.The glass forming apparatus includes entrance point and compression end and the groove extended between entrance point and compression end.The glass
Glass building mortion is additionally included in the passage below groove, and the passage extends at least in part between entrance point and compression end.Will
Atmosphere in passage is maintained at the pressure lower than the atmosphere around glass forming apparatus.
In addition, disclosed herein is the sheet glass manufactured by the above method and the electronic installation including the sheet glass.
Illustrated in following embodiment these embodiments and other embodiment other feature and
Advantage, Partial Feature and advantage therein to those skilled in the art, are easy for finding out, Huo Zhetong according to being described
Cross the embodiment as described herein implemented including detailed description below, claims and accompanying drawing and recognized
Know.
It should be appreciated that foregoing general description and following embodiment all describe the implementation of the disclosure
Mode and be intended to offer be used for understand the property of embodiment claimed and the overview of characteristic or framework.Including
Accompanying drawing provide these embodiments and other embodiment further understood, accompanying drawing is incorporated in this specification and formed
Part for specification.Accompanying drawing is exemplified with these embodiments and the various embodiments of other embodiment, and and specification
It is used for explaining principle and the operation of various embodiments together.
Brief Description Of Drawings
Fig. 1 is the schematic diagram for being used to produce the equipment of glassware for the building mortion for including the disclosure；
Fig. 2 is the section enlarged perspective of Fig. 1 building mortion；
Fig. 3 is the perspective view according to the glass forming apparatus of embodiments disclosed herein；
Fig. 4 is the side cutaway view according to the glass forming apparatus of embodiments disclosed herein；
Fig. 5 is the side cutaway view according to the glass forming apparatus of embodiments disclosed herein；
Fig. 6 is the side cutaway view according to the glass forming apparatus of embodiments disclosed herein；
Fig. 7 is the side cutaway view according to the glass forming apparatus of embodiments disclosed herein；
Fig. 8 is the top plan view according to the glass forming apparatus of embodiments disclosed herein；
Fig. 9 is the top plan view according to the glass forming apparatus of embodiments disclosed herein；
Figure 10 is the top plan view according to the glass forming apparatus of embodiments disclosed herein；
Figure 11 is to be cutd open according to the side view of the glass forming apparatus of embodiments disclosed herein, decompressing unit and control unit
Face figure；
Figure 12 is the inlet end view of a part for glass forming apparatus after the operation of progress a period of time, wherein, glass
Building mortion does not contain relief chamber；And
After operations of the Figure 13 to carry out a period of time, the entrance point of a part of glass forming apparatus of glass forming apparatus regards
Figure, wherein, glass forming apparatus contains relief chamber.
Embodiment
Embodiment of the present disclosure is described more detail below, the example of these embodiments is shown in the drawings.As long as can
Can, make same or analogous part is presented with like reference characters in the accompanying drawings.
Fig. 1 is exemplified with the glass forming apparatus to for being processed into the glass tape 103 of sheet glass afterwards fuse drawing
101 illustrative diagram.The glass forming apparatus of diagram includes fusion drawing device, although can provide it in other instances
He fuses former.Glass forming apparatus 101 may include melt container (or smelting furnace) 105, and it, which is configured for receiving, comes
From the batch of material 107 of storage bin 109.The batch of material 107 can be introduced by using the batch of material conveying device 111 that engine 113 drives.
Optional controller 115 may be configured to activate engine 113, so as to which the desired amount of batch of material 107 is introduced into melt container 105
In, as indicated by arrow 117.Glass liquid level probe 119 can be used to measure glass melt (or melten glass) 121 in vertical tube 123
Liquid level, and by the information transmission measured to controller 115 by way of communication line 125.
Glass forming apparatus 101 may also include Fining vessel 127 (such as finer), and the Fining vessel 127 is positioned at molten
Melt the downstream of container 105, and be connected by the first connecting tube 129 with the fluid of melt container 105.Stainless steel 131 (such as stir
Mix room) may be alternatively located at the downstream of Fining vessel 127, and transport box 133 (such as alms bowl shape barrel (bowl)) can be located at it is mixed
Close the downstream of container 131.As illustrated, Fining vessel 127 can be connected to stainless steel 131, and by the second connecting tube 135
Stainless steel 131 can be connected to transport box 133 by three connecting tubes 137.As further shown in FIG., can be set downcomer 139 with
Glass melt 121 is delivered to the import 141 of building mortion 143 from transport box 133.As illustrated, melt container 105, clear
Clear container 127, stainless steel 131, transport box 133 and building mortion 143 are all the examples of glass melt processing station, these
Glass melt processing station can be arranged in series along glass forming apparatus 101.
Melt container 105 is generally manufactured by refractory material, such as is manufactured by fire resisting (such as ceramics) brick.Glass forming apparatus
101 can also include the part generally made of platinum or platinum metal such as platinum-rhodium, platinum-iridium and combinations thereof, but these parts
Refractory metal, such as molybdenum, palladium, rhenium, tantalum, titanium, tungsten, ruthenium, osmium, zirconium and their alloy and/or zirconium dioxide can also be included.
The platinum component may include following one or more parts：First connecting tube 129, Fining vessel 127 (such as finer),
Second connecting tube 135, vertical tube 123, stainless steel 131 (such as teeter chamber), the 3rd connecting tube 137, transport box 133 (such as
Alms bowl shape barrel), downcomer 139 and import 141.Building mortion 143 is made up of refractory material (such as ceramics), and is designed to use
To form glass tape 103.
Fig. 2 is the cross-sectional perspective view along Fig. 1 line 2-2 glass forming apparatus 143.As illustrated, building mortion 143
It may include at least partly to include the first weir of relative each sidepiece of limiting groove 201 by the groove 201 of a pair of weir limitations, the weir
203 and second weir 205.As further shown in FIG., the groove can also be limited at least partly by bottom wall 207.As illustrated, weir 203,
205 and the inner surface of bottom wall 207 define can be generally U-shaped optionally with fillet.In additional examples, the U-shaped can
With with each surface for being mutually in substantially 90 °.In additional examples, the groove can have by each interior of weir 203,205
Surface crosswise and the basal surface limited.For example, the groove can have V-arrangement profile.Although it is not shown, the groove can also be in addition
Embodiment include other construction.
As illustrated, groove 201 can have along the longitudinal axis 209 between the top on weir and the bottom of groove 201 (i.e. bottom wall 207)
The depth " D " of change, but the depth can be basically unchanged along axle 209.The depth " D " of change groove 201, which can aid in, to be made
The thickness of glass tape is consistent on the width of glass tape 103.In a proper example, as shown in Fig. 2 close to building mortion
Depth " the D of 143 imports1" depth " D for the groove 201 being located at the import downstream of groove 201 can be more than2”.As shown in dotted line 210, bottom
Wall 207 can extend relative to the angle at an acute angle of axle 209, so that length of the depth of groove 201 along building mortion 143 is from entering
Mouth end essentially continuously reduces to opposite end.
Building mortion 143 also include shaping wedge 211, it is described shaping wedge 211 include a pair shaping wedge 211 opposite end it
Between the forming surface portion 213,215 that extends and tilt down.This is to the forming surface portion 213,215 tilted down under
Roam all around the would is to 217 convergences, to form root 219.Draw plane 221 extends through root 219, wherein it is possible to along draw plane
221 are drawn with downstream direction 217 to glass tape 103.As illustrated, draw plane 221 can be split at root 219, but
It is that draw plane 221 can also be along other directions extension relative to root 219.
It can optionally make building mortion 143 that there is one or more edge guide members 223, the edge guide member 223
At least one in the forming surface portion 213,215 that tilts down is intersected with this.Edge guide member 223 can help to reduce
The decay of glass tape 103 or width diminish.In additional examples, one or more of edge guide members can be with tilting down
Forming surface portion 213,215 both intersections.In additional examples, edge guide member can be placed in shaping wedge 211
Each relative end at, wherein, the edge of glass tape 103 is formed by the melten glass of spilling edge guide member.For example, such as
Shown in Fig. 2, edge guide member 223 can be placed at the first opposite end 225, and can be by identical second edge guiding piece
(not shown in FIG. 2) is placed at the second opposite end (referring to 227 in Fig. 1).Each edge guide member 223 can be configured to
Both forming surface portions 213,215 tilted down are all intersecting.Can be substantially identical each edge guide member 223,
But in additional examples, each edge guide member can take on a different character.It can be used according to each side of the disclosure
Various shaping wedge and edge guide member constructions.For example, each side of the disclosure can use the 3rd, 451, No. 798 United States Patent (USP),
No. 3,537,834 United States Patent (USP), No. 7,409,839 United States Patent (USP) and/or submit within 26th within 2 months within 2009 the 61/155th,
Shaping wedge and edge guide member construction disclosed in No. 669 U.S. Provisional Patent Applications, these documents difference is by reference of text
Include herein.
Fig. 3 shows the perspective view of the glass forming apparatus according to embodiments disclosed herein.In Fig. 3 embodiment
In, glass forming apparatus 300 includes entrance point 330, compression end 340 and on entrance point 330, compression end 340, the first weir 305
And second groove 320 extended between weir 310.Construction glass forming apparatus is to allow melten glass to cross the from the overflow of groove 320
One and second weir 305,310, and from each sidepiece of glass forming apparatus flow down and flow to the root 350 of glass forming apparatus.
As can be seen from Fig. 3, the depth " D " of groove 320 reduces between entrance point 330 and compression end 340.Correspondingly, the sectional area of groove 320
Reduce between entrance point 330 and compression end 340.Pier block 410,420 provides compression stress to mitigate glass forming apparatus 300
Sag.
Glass forming apparatus 300 is additionally included in the passage 380 of the lower section of groove 320, and the passage 380 is in entrance point 330 and pressure
Extend at least in part between contracting end 340.Although Fig. 3 shows the passage 380 for extending to entrance point 330, herein
Disclosed embodiment includes the embodiment that wherein passage extends to compression end 340, such as in entrance point 330 and compression
The whole longitudinal length extension of glass forming apparatus between end 340.Such as the more specifical explanation carried out below, passage can
Only partially to extend between entrance point 330 and compression end 340, such as extend the forming of glass from entrance point 330 out
Distance in device 300, or extend the distance in the glass forming apparatus 300 from compression end 340 out.
Although Fig. 3 shows rectangular channels 380, wherein at the entrance point 330 of glass forming apparatus 300, passage
Horizontal width be more than passage vertical height, it should be understood that embodiments disclosed herein includes the geometry of passage
Shape and size have the embodiment of other constructions, including substantially rectangular shape, and the wherein vertical height of passage is more than logical
The horizontal width in road；The horizontal width of generally square shape, wherein passage and vertical width are roughly equal；And for example substantially
Circular, ellipse or the triangular shaped passage with different orientation.In addition, although Fig. 3 passage 380 is shown with circle
Angle, but embodiments disclosed herein covers the passage with acute angle, chamfering or other geometries.
As will be described in detail below, the physical dimension that embodiments described herein includes wherein passage fills in forming of glass
Put the embodiment changed between 300 entrance point 330 and compression end 340.Embodiments described herein also includes wherein in import
Between end 330 and compression end 340, the reality of the longitudinal length relative constancy of the physical dimension of passage along glass forming apparatus 300
Apply mode.
Fig. 4 shows the side cutaway view of the glass forming apparatus 300 according to embodiments disclosed herein.In Fig. 4 institutes
In the embodiment shown, passage 380 is along axle " A-A " between the entrance point 330 of glass forming apparatus 300 and compression end 340
Extension.Bottom of the passage 380 along its longitudinal length and groove 320 is almost parallel, and the height " H " of passage 380 is along passage
380 length constant.
Fig. 5 shows the side cutaway view of the glass forming apparatus 300 ' according to embodiments disclosed herein.In Fig. 5 institutes
In the embodiment shown, passage 380 ' extends between the entrance point 330 of glass forming apparatus 300 ' and compression end 340.Passage
380 ' sectional area changes between the entrance point 330 of glass forming apparatus 300 ' and compression end 340.Specifically, passage
380 ' height " H " reduces between the entrance point 330 of glass forming apparatus 300 and compression end 340.Although shown in Fig. 5
In embodiment, the top of passage 380 ' and the root 350 of glass forming apparatus 300 are almost parallel, and the bottom of passage 380 '
Portion and the bottom of groove 320 are almost parallel, it should be understood that embodiments disclosed herein constructs including replaceability, wherein logical
The height in road reduces between entrance point 330 and compression end 340.
On this point, Fig. 6 is shown cuts open according to the side view of the glass forming apparatus 300 " of embodiments disclosed herein
Face figure.In the embodiment shown in fig. 6, passage 380 " glass forming apparatus 300 " entrance point 330 and compression end 340 it
Between extend.The height " H " of passage 380 " reduces between the entrance point 330 of glass forming apparatus 300 and compression end 340.In Fig. 6
In shown embodiment, the top and the bottom of groove 320 of passage 380 " are almost parallel.
In Fig. 5 and 6 embodiment, the height " H " of wherein passage reduces between entrance point 330 and compression end 340,
Although relative to the channel height at entrance point 340, the channel height at compression end 330 is not limited, it can be with
For 5% to 95% of the channel height for example at entrance point, such as 10% to 90%, also such as 20% to 80%, also for example
30% to 70%.
In addition, although Fig. 4 shows embodiment of the height " H " of passage along its longitudinal length constant, and
Fig. 5 and 6 shows the embodiment that the height " H " of passage reduces between entrance point 330 and compression end 340, it should be understood that
Height of the embodiments described herein including passage increased embodiment between the entrance point of glass forming apparatus and compression end
(not showing in figs. 4-6).
Fig. 7 shows the glass forming apparatus 300 " according to embodiments disclosed herein ' side cutaway view.In Fig. 7
Embodiment in, the longitudinal length of passage 380 " ' along glass forming apparatus 300 " ' only partially extends.Specifically, lead to
The partial-length in road 380 " ' from entrance point 330s and along glass forming apparatus 300 " ' extends.
Although in the embodiment shown in figure, passage have constant height " H " and with the bottom of groove 320
It is almost parallel, it should be understood that embodiments disclosed herein constructs including other, such as the construction shown in Fig. 5 and 6
Similar construction, wherein, except passage 380 " ' only partially extend along the longitudinal length of glass forming apparatus in addition to, passage
Height " H " reduce between entrance point 330 and compression end 340.Embodiments disclosed herein also includes passage along glass
The longitudinal length of building mortion only partially extends, and the height of passage glass forming apparatus entrance point and compression end it
Between increased embodiment.Embodiments disclosed herein also includes height the appointing above as the function of length on passage
The embodiment of meaning, wherein, passage extends from compression end 340s and along the partial-length of glass forming apparatus.
In Fig. 4 and 6 embodiment, the top of passage 380,380 " in entrance point 330 and is pressed from the bottom of groove 320
It is uniform distance between contracting end 340.In such as Fig. 5 embodiment, the top of passage 380 ' exists from the bottom of groove 320
It is uneven distance between entrance point 330 and compression end 340.Specifically, in Fig. 5 embodiment, the bottom of groove 320 with
The distance between top of passage 380 ' increases between entrance point 330 and compression end 340.Embodiments described herein also includes groove
The embodiment (not shown) that the distance between bottom and the top of passage reduce between entrance point and compression end.
Fig. 8 shows the top plan view of the glass forming apparatus 300 " according to embodiments disclosed herein.Fig. 8's
In embodiment, the width " W " of passage 380 is grown between entrance point 330 and compression end 340 along the longitudinal direction of glass forming apparatus
Spend constant.
Fig. 9 shows the top plan view of the glass forming apparatus 300 according to embodiments disclosed herein.Fig. 9's
In embodiment, the width " W " of passage 380 reduces between entrance point 330 and compression end 340.
In Fig. 9 embodiment, the width " W " of wherein passage reduces between entrance point 330 and compression end 340, though
So relative to the channel width at entrance point 340, the channel width at compression end 330 is not limited, but it can be
Such as 5% to 95% of the channel width at entrance point, such as 10% to 90%, also such as 20% to 80%, also such as 30%
To 70%.
Figure 10 shows the glass forming apparatus 300 " according to embodiments disclosed herein ' top plan view.Scheming
The longitudinal length of in 10 embodiment, passage 380 " ' along glass forming apparatus 300 " ' only partially extend and along its
Longitudinal length has the width " W " of constant.
Although in the embodiment shown in Figure 10, passage has the width " W " of constant, it should be understood that
Embodiments disclosed herein includes other constructions, such as the construction similar to shown in Fig. 9, wherein, except passage is along glass
Outside the longitudinal length of glass building mortion only partially extends, the width " W " of passage is between entrance point 330 and compression end 340
Reduce.
Although Fig. 8-10 shows width constant between entrance point 330 and compression end 340 or reduced
Passage, it should be understood that embodiments disclosed herein is additionally included between the entrance point of glass forming apparatus and compression end
The embodiment that increased of width (not shown in Fig. 8-10).
Embodiments described herein also includes wherein between entrance point 330 and compression end 340, the sectional area of passage along its
Longitudinal length relative constancy or the embodiment of change.For example, in some preferred embodiments, the sectional area of passage is entering
Reduce between mouth end 330 and compression end 340.
On this point, Fig. 6 and 8 collectively illustrates an embodiment, wherein, the height " H " of passage 380 " is in glass
Reduce between the entrance point 330 and compression end 340 of building mortion 300, and longitudinal direction length of the width " W " along glass forming apparatus
Degree constant between entrance point 330 and compression end 340.Therefore, the sectional area of passage 380 " is in glass forming apparatus 300 "
Entrance point 330 and compression end 340 between reduce.
In another example Fig. 4 and 9 collectively illustrates an embodiment, wherein, the height " H " of passage 380 is longitudinally long along it
Constant is spent, and width " W " reduces between entrance point 330 and compression end 340.Correspondingly, the sectional area of passage 380 exists
Reduce between the entrance point 330 and compression end 340 of glass forming apparatus 300.
Although Fig. 6 and 8 and Fig. 4 and 9 collectively illustrates preferred embodiment, wherein, the sectional area of passage is in import
End and compression end between reduce, it should be understood that embodiments disclosed herein also include other construction, it is described other
Construction in, the sectional area of passage reduces between entrance point and compression end.On this point, embodiments disclosed herein bag
Any one of construction shown in Fig. 4-6 and any embodiment combined shown in Fig. 8 and 9 are included, to obtain
The passage that sectional area reduces between the entrance point of glass forming apparatus and compression end.
In the embodiment that the sectional area of passage reduces between entrance point 330 and compression end 340, although relative to entering
The sectional area of passage at mouth end 340, is not limited the sectional area of the passage at compression end 330, but it can be exemplified by
Such as the 5% to 95% of the sectional area of the passage at entrance point, such as 10% to 90%, also such as 20% to 80%, also for example
30% to 70%.
Embodiments disclosed herein also including passage sectional area glass forming apparatus entrance point and compression end it
Between increased embodiment (not shown in Fig. 4-10).
Fig. 7 and 10 collectively illustrates an embodiment, wherein, passage 380 " ' along glass forming apparatus 300 " ' it is vertical
Only partially extend to length and there is the height " H " and width " W " of constant along its longitudinal length.Correspondingly, lead to
Road 380 " ' sectional area along its longitudinal length keep constant.
Although passage 380 " ' there is the sectional area of constant, embodiment party disclosed herein along its longitudinal length
Formula only partially extends (such as extending from entrance point or compression end) simultaneously including longitudinal length of the passage along glass forming apparatus
And sectional area changes along its longitudinal length, for example, between entrance point and compression end increase or entrance point and compression end it
Between the embodiment that reduces.These changes may cause channel height, change width or height and width to change.
Although the size or sectional area of the passage shown in Fig. 4-10 change in generally linear fashion, it should be understood that
The embodiment that size or sectional area of the embodiments disclosed herein also including passage change in a non-linear fashion, such as make
The passage that at least one of height and width change in graph form, or make at least one of height and width with rank
The passage that the mode of ladder type changes.
Although glass forming apparatus 300 any specific material is not defined to, in some illustrative embodiments
In can include the refractory material minimum to the melten glass reactivity that is formed using described device.For glass forming apparatus
Exemplary materials include but is not limited to the ceramic material based on zircon of isostatic pressed, such as at No. 2004/0055338 and
Those disclosed in No. 2005/0130830 U.S. Patent Application Publication, the complete disclosure of the patent application passes through reference
Include herein.Exemplary materials for glass forming apparatus can also include the ceramic material based on xenotime of isostatic pressed
It is or public through the stable ceramic material based on zircon of xenotime, such as in No. 2009/0131241 U.S. Patent Application Publication
Those opened, the complete disclosure of the patent application are included herein by reference.
Figure 11 shows the side cutaway view of the glass forming apparatus 300 with passage 380, wherein, decompressing unit 500 passes through
Fluidly connected by pipeline 510 and passage 380.Although decompressing unit 500 shown in Figure 11 is in the compression end of glass forming apparatus 300
On side, it should be understood that embodiments disclosed herein includes import of the decompressing unit 500 in glass forming apparatus 300
Embodiment on side.Decompressing unit 500 can include vavuum pump or the atmosphere in passage 380 can be maintained at than around
Any other type of the low mechanism of the atmosphere pressures of glass forming apparatus 300 or construction.
The operation of decompressing unit 500 can be controlled by controller 520, so as to make the regulation of decompressing unit 500 logical
The pressure of atmosphere in road 380.Though it is shown that single controller 520, but can be provided in other embodiment
Multiple controllers, term " controller " (such as " processor ") can cover all devices, device and machine for processing data,
Including such as programmable processor, computer or multiple processors or computer.Processor may include to be involved in addition to hardware
And computer program create performing environment code, such as form processor firmware, protocol stack, data base management system, behaviour
Make system or they one of or a variety of combinations code.
Computer program (also referred to as program, software, software application, script or code) can be in any form programming language
Speech is write, including compiling or interpretative code, or statement or procedural language, and can dispose in any form, including conduct
Stand-alone program or as module, component, subprogram or other units suitable for computing environment.Computer program not need to correspond to
File in file system.Program can be stored in the part in the file for preserving other programs or data (for example, storage
In one or more of making language document script), it is stored in and is exclusively used in the single file of involved program, Huo Zhecun
Storage is in multiple coordination files (for example, storing the file of one or more modules, subprogram or partial code).Computer program
It can dispose on one computer or be performed in multiple stage computers, these computer bits are in a website or across multiple websites point
Cloth and pass through interconnection of telecommunication network.
Procedure described herein can be performed by one or more controllers, and the controller may include that one or more can
Programmed process device, the programmable processor perform one or more computer programs with by being operated simultaneously to input data
Generation output carrys out perform function.Program and logic flow can also be by dedicated logic circuits (for example, FPGA (field-programmables
Gate array) or ASIC (application specific integrated circuit)) etc. perform, and equipment can also be used as dedicated logic circuit to use.
For example, being adapted for carrying out the processor of computer program includes general and special microprocessor and any types
Digital computer any one or more processors.Generally, processor will be from read-only storage or random access memory
Or both receive instruction and data.The primary element of computer is performed for the processor of instruction and for store instruction sum
According to one or more data storage devices.In general, computer will also include or be operably coupled to be used to store number
According to one or more mass storage devices, such as disk, magneto-optic disk or CD, to be filled from one or more massive stores
Put middle reception data or not only receive data to one or more mass storage devices transmission data, or both but also transmit number
According to.However, computer need not have such device.Furthermore it is possible to which computer is embedded in another device, citing comes
Say, such as mobile phone, personal digital assistant (PDA) etc..
Computer-readable medium suitable for storage computer program instructions and data includes the data storage of form of ownership,
Including nonvolatile memory, medium and storage device, including such as semiconductor storage, such as EPROM, EEPROM and sudden strain of a muscle
Cryopreservation device；Disk, such as internal hard drive or moveable magnetic disc；Magneto-optic disk；And CD ROM and DVD-ROM disks.Processor and
Memory by supplemented or can be incorporated in dedicated logic circuit.
In order to provide the interaction with user, implementations described herein can be implemented on computers, and the computer has
Display for a user the display device [such as CRT (cathode-ray tube) or LCD (liquid crystal display) monitor etc.] of information and supply
User provides the keyboard and fixed-point apparatus (such as mouse or trace ball or touch-screen) of input information for computer.It is other kinds of
Device can also be used for providing the interaction with user；For example, the input from user can be received in any form, including sound,
Voice or sense of touch.
Implementations described herein can be implemented in computing systems, and the computing system includes back-end component and (such as made
For data server), either including intermediate equipment part (such as application server) or including front end component (such as with
The client computer of graphic user interface or web browser, user can be with masters described herein by the client computer
The implementation process of topic is interactive), or the combination of one or more this rear ends, intermediate equipment or front end component.The system
Part can be interconnected by any form or medium of digital data communications (such as communication network).The example of communication network includes office
Domain net (" LAN ") and wide area network (" WAN "), such as internet.
Computing system may include client and server.Client and server is generally remote from each other and generally passes through communication
Network interconnection.By running on the respective computers and the computer program with client-server correlation is established
Relation between client and server.
In some preferred embodiments, controller 520 can include at least one in feedback and feedforward control system
It is individual, wherein measure at least one process conditions and be input to controller 520, and wherein control algolithm be used to make controller
520 can adjust the pressure of atmosphere in passage 380 by operating decompressing unit 500.It can be measured and be input to controller 520
Process conditions include but is not limited to fill by the thickness distribution characteristic of the sheet glass of glass forming apparatus manufacture and/or in forming of glass
The thickness distribution characteristic of the molten glass passing of flowing underneath is put, includes the glass or glass of the function as the width along sheet glass
Glass tape thickness, and the mass ratio of the flange and center of glass or glass tape.Process conditions can also be including the use of for example taking a picture
The sag of machine (such as infrared camera) or laser measuring technique direct measurement glass forming apparatus, and direct measurement glass is formed
The distance between weir of device.In addition, process conditions can include the stream of the melten glass handled by glass forming apparatus 300
Dynamic speed and temperature.These measurements can be carried out by the instruction or regulation of user, or can periodically be carried out with automatic spacing,
Such as monthly, weekly, daily, per hour or in one hour several times.
The pressure in passage 380 can regularly be adjusted to respond at least one measurement characteristicses described above.Therefore, lead to
Pressure in road 380 can be in the different time or different at different processing conditions.For at least one given
Period, the atmosphere in passage can be kept lower at least 2psi than the atmosphere around glass forming apparatus, to mitigate weir with the time
The influence of extension, this so that make it that the flowing of melten glass is more uniform, and therefore by the service life of glass forming apparatus 300
Add the period of an elongated segment.Atmosphere in passage can also be kept or is adjusted to relative to around glass forming apparatus
Atmosphere there are other pressure, for example, than around glass forming apparatus atmosphere it is low at least 4psi, further comprise it is low at least
6psi, in addition to low at least 8psi, or even also include low at least 10psi, including low 2 to 12psi, and also include low 4 to
10psi.On this point, it should be appreciated that although embodiments disclosed herein includes keeping the inside points vacuum of passage 380, so
It can be enough to mitigate the influence that weir extends with the time, but embodiments disclosed herein also includes keeping substantially completely true
It is empty.
What Figure 12 and 13 was shown respectively is the inlet end view of a part for glass forming apparatus after a period of time is operated,
Wherein, glass forming apparatus does not contain relief chamber；And after a period of time is operated a part for glass forming apparatus import
End-view, wherein glass forming apparatus contain relief chamber.As can be seen from Fig. 12, when glass forming apparatus does not have relief chamber,
Weir 305 and 310 is tended in operating time section spread so that their separated distances increase to distance " W1 ", the distance
" W1 " than when glass forming apparatus start input operation when their separated distances it is big.In general, with weir 305 and 310 it
Between distance increase, glass flow uniformity and predictability reduce, and the extension for being particularly due to weir fills close to forming of glass
The arrival end put tends to be maximum, because the height on weir is bigger relative to the height of the compression end close to glass forming apparatus.
Finally, glass flow uniformity and predictability can be corrupted to glass forming apparatus and be not useable for producing with enough by weir extension
The degree of the glassware (such as sheet glass) of quality, thus it requires changing glass forming apparatus.
On the contrary, as shown in figure 13, when glass forming apparatus has relief chamber 380, weir 305 and 310 is identical with Figure 12
Operating time section in do not extend the degree reached shown in Figure 12 so that their separated distances " W2 " are less than " W1 ".This and then
Can enable glass flow uniformity and predictability than glass forming apparatus do not contain it is relatively stable in the case of relief chamber and
Controllably keep the longer time.Therefore, the service life of glass forming apparatus can be extended, so as to reduce production expense
With.
Although specific embodiment disclosed herein is the description as described in being carried out overflow down draw technique, it should be understood that
It is the principle of these embodiments and operation can also be applied to other glass forming process, such as floating process and slot draw work
Skill.
It will be apparent to those skilled in the art that various modifications can be carried out to embodiment of the present disclosure
With variation without departing from spirit and scope of the present disclosure.Therefore, the disclosure is intended to these embodiments and other embodiment party
The modification and variation of formula, as long as these modifications and variation are within the scope of appended claims and its equivalents.
Claims (22)
1. a kind of equipment for producing glassware, the equipment includes glass forming apparatus, the glass forming apparatus bag
Include：
Entrance point and compression end and the groove extended between entrance point and compression end；With
Passage below groove, the passage extend at least in part between entrance point and compression end；
Wherein, the atmosphere in passage is maintained at lower than the pressure of the atmosphere around glass forming apparatus.
2. equipment as claimed in claim 1, wherein, the sectional area of passage changes between entrance point and compression end.
3. equipment as claimed in claim 2, wherein, the sectional area of passage reduces between entrance point and compression end.
4. equipment as claimed in claim 3, wherein, the width of passage reduces between entrance point and compression end.
5. equipment as claimed in claim 3, wherein, the height of passage reduces between entrance point and compression end.
6. equipment as claimed in claim 1, wherein, the top of passage is between entrance point and compression end from trench bottom
Uniform distance.
7. equipment as claimed in claim 1, wherein, the top of passage is between entrance point and compression end from trench bottom
Uneven distance.
8. equipment as claimed in claim 1, wherein, the atmosphere in passage keeps the pressure than the atmosphere around glass forming apparatus
The low at least 2psi of power.
9. equipment as claimed in claim 1, wherein, the equipment also includes the decompressing unit fluidly connected with passage.
10. equipment as claimed in claim 1, wherein, the equipment also includes the control list of the pressure of atmosphere in regulation passage
Member.
11. a kind of method for producing glassware, methods described includes melten glass being incorporated into glass forming apparatus, the glass
Glass building mortion includes：
Entrance point and compression end and the groove extended between entrance point and compression end；With
Passage below groove, the passage extend at least in part between entrance point and compression end；
Wherein, the atmosphere in passage is maintained at lower than the pressure of the atmosphere around glass forming apparatus.
12. method as claimed in claim 11, wherein, the sectional area of passage changes between entrance point and compression end.
13. method as claimed in claim 12, wherein, the sectional area of passage reduces between entrance point and compression end.
14. method as claimed in claim 13, wherein, the width of passage reduces between entrance point and compression end.
15. method as claimed in claim 13, wherein, the height of passage reduces between entrance point and compression end.
16. method as claimed in claim 11, wherein, the top of passage is from trench bottom between entrance point and compression end
For uniform distance.
17. method as claimed in claim 11, wherein, the top of passage is from trench bottom between entrance point and compression end
For uneven distance.
18. method as claimed in claim 11, wherein, the atmosphere in passage is kept than the atmosphere around glass forming apparatus
The low at least 2psi of pressure.
19. method as claimed in claim 11, wherein, methods described also includes the decompression list that operation fluidly connects with passage
Member.
20. method as claimed in claim 11, wherein, methods described also includes operation control unit, and described control unit is adjusted
Save the pressure of atmosphere in passage.
21. a kind of sheet glass, it is manufactured by method as claimed in claim 11.
22. a kind of electronic installation, it includes sheet glass as claimed in claim 21.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US201562174706P | 2015-06-12 | 2015-06-12 | |
| US62/174,706 | 2015-06-12 | ||
| PCT/US2016/036617 WO2016201055A1 (en) | 2015-06-12 | 2016-06-09 | Glass manufacturing apparatus and method with reduced pressure cavity |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107750240A true CN107750240A (en) | 2018-03-02 |
Family
ID=57504345
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201680034400.1A Pending CN107750240A (en) | 2015-06-12 | 2016-06-09 | Glass manufacturing equipment and method with relief chamber |
Country Status (5)
| Country | Link |
|---|---|
| JP (1) | JP2018516838A (en) |
| KR (1) | KR20180030410A (en) |
| CN (1) | CN107750240A (en) |
| TW (1) | TW201708130A (en) |
| WO (1) | WO2016201055A1 (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2019510725A (en) * | 2016-04-07 | 2019-04-18 | コーニング インコーポレイテッド | Forming body for forming continuous glass ribbon and glass forming apparatus provided with the same |
| CN108918269B (en) * | 2018-07-27 | 2021-04-13 | 彩虹显示器件股份有限公司 | Method for detecting creep quantity of overflow tank on line |
| CN112654587B (en) * | 2018-08-10 | 2023-05-16 | 康宁公司 | Apparatus and method for manufacturing glass ribbon |
| EP4174037A1 (en) * | 2020-06-25 | 2023-05-03 | Agc Inc. | Molding device |
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| CN101652327A (en) * | 2007-02-23 | 2010-02-17 | 康宁股份有限公司 | Isopipe design feature to eliminate sag |
| WO2014179142A1 (en) * | 2013-04-29 | 2014-11-06 | Corning Incorporated | Method of making a glass forming apparatus with reduced weight |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4743665B2 (en) * | 2005-04-20 | 2011-08-10 | 日本電気硝子株式会社 | Sheet glass forming apparatus and sheet glass forming method |
| JP2006298736A (en) * | 2005-04-25 | 2006-11-02 | Nippon Electric Glass Co Ltd | Apparatus for forming plate glass, supporting member for apparatus for forming plate glass and method for forming plate glass |
| JP5912212B2 (en) * | 2007-08-03 | 2016-04-27 | 株式会社フルヤ金属 | Molding part of glass manufacturing apparatus and method for manufacturing glass molded product |
-
2016
- 2016-06-09 KR KR1020187001206A patent/KR20180030410A/en unknown
- 2016-06-09 JP JP2017564458A patent/JP2018516838A/en active Pending
- 2016-06-09 CN CN201680034400.1A patent/CN107750240A/en active Pending
- 2016-06-09 WO PCT/US2016/036617 patent/WO2016201055A1/en active Application Filing
- 2016-06-13 TW TW105118430A patent/TW201708130A/en unknown
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101652327A (en) * | 2007-02-23 | 2010-02-17 | 康宁股份有限公司 | Isopipe design feature to eliminate sag |
| WO2014179142A1 (en) * | 2013-04-29 | 2014-11-06 | Corning Incorporated | Method of making a glass forming apparatus with reduced weight |
Non-Patent Citations (1)
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| 徐国跃: "《电子陶瓷材料及元件基础》", 30 September 2001, 南京航空航天大学材料学院 * |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2016201055A1 (en) | 2016-12-15 |
| TW201708130A (en) | 2017-03-01 |
| KR20180030410A (en) | 2018-03-22 |
| JP2018516838A (en) | 2018-06-28 |
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