CN102149646A - Isopipes having improved dimensional stability - Google Patents
Isopipes having improved dimensional stability Download PDFInfo
- Publication number
- CN102149646A CN102149646A CN2009801336106A CN200980133610A CN102149646A CN 102149646 A CN102149646 A CN 102149646A CN 2009801336106 A CN2009801336106 A CN 2009801336106A CN 200980133610 A CN200980133610 A CN 200980133610A CN 102149646 A CN102149646 A CN 102149646A
- Authority
- CN
- China
- Prior art keywords
- weir
- hole
- structural member
- outside surface
- pressure pipe
- 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.)
- Granted
Links
Images
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
-
- 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
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Glass Melting And Manufacturing (AREA)
- Re-Forming, After-Treatment, Cutting And Transporting Of Glass Products (AREA)
- Furnace Housings, Linings, Walls, And Ceilings (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
- Compositions Of Oxide Ceramics (AREA)
- Manufacture, Treatment Of Glass Fibers (AREA)
Abstract
An isopipe (13) for forming a glass ribbon (19) by a fusion process is provided which comprises a trough (11) and first and second weirs (1,2). Each weir (1,2) has an aperture (35) that extends along at least part of the weir's length. The apertures (35) can be used to cool the interior of the weirs (1,2) and thus reduce their creep rate. Alternatively, the apertures (35) can include structural members (41,42) to stabilize the weirs. In certain embodiments, the structural members (41,42) do not completely fill the apertures (35) thus allowing for weir stabilization through a combination of mechanical support and internal temperature reduction.
Description
Related application
That the application requires to submit on August 29th, 2008 is by name " Isopipes Having Improved Dimensional Stability (have improve dimensional stability etc. pressure pipe) " the right of priority of U.S. Provisional Patent Application 61/092,931.
Technical field
The present invention relates to smelting process make sheet glass etc. pressure pipe, particularly, relate to the apparatus and method of the size change that demonstrates in the pressure pipe use such as a kind of control.
Definition
For ease of reference, adopted speech such as " pressure pipe (isopipe) " in the explanation of the present invention, it is used to describe the former that adopts in the smelting process in history.Should be appreciated that the use of this term and be not intended to, also should not be interpreted as limiting the invention to hydrostatic pressing equipment.
Yet as (the seeing the summary of the invention part in addition) of being set forth in the claim, the present invention is applicable to the former in all types of smelting process, no matter these materials by which kind of material are made and/or handled in which way to the former that uses.
In addition, for convenience, be regarded as comprising: 1) comprise the first part on first and second weirs of equipment, 2 etc. pressure pipe (former)) comprise the second section of the wedge-like portion of equipment.Second section also has first outside surface and second outside surface, and first outside surface is the continuity of the first weir outside surface, and second outside surface is the continuity of the second weir outside surface.Because this term just for convenience of explanation, the definite position of employed transition is not very crucial between first and second parts, can be considered to be in any position that is lower than the bottom, weir and is higher than the equipment wedge-like portion.
Background technology
For example the manufacturing of the flat-panel monitor of liquid-crystal display (LCD) adopts glass substrate to produce a plurality of indicating meters simultaneously, for example, produces six or multi-display more simultaneously.Substrate width has limited the indicating meter number that can produce on single substrate, therefore wideer substrate can increase economic scale.In addition, in order to satisfy the demand to large-sized monitor, display manufacturer needs wideer substrate.
In addition, the glass substrate that can use with the polycrystalline silicon device that need handle is being sought by these manufacturerss under comparatively high temps, particularly need the glass component of high strain-point, and this glass ingredient can not be compressed in display production.This glass needs higher forming temperature usually, therefore needs a kind of glass forming process that can bear high like this temperature.
Smelting process is to be used to one of basic fundamental of producing sheet glass in the glass manufacturing area.For example publish Varshneya, unorganic glass basis 534-540 page or leaf the 20th chapter 4.2 joints " sheet glass " that Arun K. writes referring to Boston Science Press in 1994.With other method known in the art, to compare with the seam daraf(reciprocal of farad) as float glass process, smelting process can be made the smooth and slick especially sheet glass in surface.Therefore, smelting process particularly important when manufacturing is used to produce the glass substrate of liquid-crystal display (LCD).
Smelting process is specially the overflow down draw smelting process, is the commonly assigned United States Patent (USP) 3338696 of Stuart M.Dockerty and 3682609 theme.Fig. 1 is the synoptic diagram of method described in these patents.As shown in the figure, this system comprises feeder sleeve 9, and the receiving tank 11 that forms in the pressure pipes 13 such as its Xiang Zai is supplied with melten glass.
After reaching steady state operation, melten glass flows to above-mentioned receiving tank from feeder sleeve, then at the top of both sides overflow by groove, formed like this flow downward, then along two glass ribbons of the inside mobile of isobaric tube outer surface.These two glass ribbons are waiting pressure pipe bottom or root 15 to meet, and melting gets together forms single glass ribbon.Should send into drawing device (schematically showing with arrow 17) by single glass ribbon then, the speed that this drawing device is pulled away from root by glass ribbon is controlled the thickness of single glass ribbon and is therefore controlled the thickness of final sheet glass.Appropriate location quite far away, downstream, pressure pipes such as this drawing device is positioned at bottoms so that single glass ribbon with cool off also hardening before this device contact.
As shown in Figure 1, the outside surface of final glass ribbon does not contact with any part of isobaric tube outer surface in whole process.On the contrary, the atmosphere around these surfaces only contact.Form the pressure pipes such as internal surface contact of two glass, half band of final glass ribbon, but these internal surfaces in the bottom of waiting pressure pipe molten getting together, they are enclosed in the inside of final glass ribbon body as a result.Like this, the outside surface of the final sheet glass that cuts down from glass ribbon just has good performance.
As previously mentioned, the success etc. 13 pairs of smelting process of pressure pipe is vital.Particularly, be very important etc. the dimensional stability of pressure pipe because etc. the variation of pressure pipe geometrical shape can influence the success of whole process.It should be noted that etc. that the pressure pipes such as condition that pressure pipe is used make it be subject to the dimensional change influence.These pressure pipes are usually operated in 1000 ℃ and the above hot environment.In addition, these at high temperature work etc. the pressure pipe weight that not only will support self also want the weight of the melten glass of supporting stream in both sides and groove 11, and the partial tension at least that when drawing, returns etc. pressure pipe by the melten glass transmission.Depend on the width of sheet glass to be produced, can have 2.0 meters and above unsupported length etc. pressure pipe.
Bear these exacting terms, can pressure pipe 13 (so called after " etc. pressure pipe ") such as make by static pressure pieces such as refractory materialss.Particularly, wait the static pressure zircon refractory material be used to smelting process etc. pressure pipe.
Even such high performance material is arranged, in practice, limited its work-ing life etc. the dimensional change of pressure pipe.For example, sink, make to manage not to drop in the middle of the bearing length to be lower than its external bracing end etc. pressure pipe.Pressure pipe root such as edge and dimensional change occurs along pipe weir, top.
In view of the foregoing, as can be seen, need the equipment and the method for production sheet glass that can economical and efficient ground application smelting process, and this sheet glass has bigger width and/or the glass of high strain-point constitutes by having more.Especially, this such as need improve at dimensional stability of pressure pipe, thereby prolongs its work-ing life, therefore reduces the pressure pipe replacement costs such as stop time and reduction.
Summary of the invention
According to first aspect, the invention provides and a kind ofly make the device (for example) of glass ribbon (19) etc. pressure pipe 13 with smelting process, it comprises:
The first part (21) that comprises groove (11) and first, second weir (1,2), there are internal surface (25), upper surface (27) and outside surface (29) in each weir; And
The second section (23) that comprises first outside surface (31) and second outside surface (32), first outside surface (31) are the continuities of first weir (1) outside surface (29), and second outside surface (32) is the continuity of second weir (2) outside surface (29).First and second outside surfaces (31,32) thus each other the location make at least a portion (33) of second section (23) have wedge-shaped cross-section;
Wherein each weir (1,2) comprises a hole (35), this hole:
(i) extend along length to the small part weir;
(ii) the hole (35) to small part is positioned between the inside and outside surface (25,29) on weir.
According to second aspect, the invention provides the method that a kind of employing smelting process is made glass ribbon (19), comprising:
(A) to building mortion (as etc. pressure pipe 13) provide melten glass, building mortion to comprise first and second weirs (1,2), etc. pressure pipe, each weir has:
(i) internal surface (25),
(ii) upper surface (27),
(iii) outside surface (29) and
(iv) hole (35), this hole:
(a) along extend to the length on small part weir and
(b) comprise the hole (35) of at least a portion between the inside and outside surface (25,29) that is positioned at the weir; With
(B) make fluid (as gas or mixed gas or liquid or liquid mixture) flow through hole (35) and cool off weir (1,2).
In specific embodiment, the hole (35) that is included in weir (1,2) comprises structural member (41,42), all or part of filling orifice of structural member (41,42).Structural member can be solid or hollow.In other embodiments, the building mortion body can also comprise one or more holes (43), and it can comprise structural member (45).
Used Reference numeral only is used to the purpose that helps reader in the general introduction of the present invention, and is not used in and is not interpreted as limitation of the present invention.In general, should be understood that above-mentioned generality explanation and following detailed description all are exemplary example of the present invention, be used to claimed invention that a general introduction or framework are provided.
Other additional function of the present invention and advantage after elaborate, and in the description of this invention, part advantage therefrom reasoning rehearsal draws, and also is conspicuous.Listing accompanying drawing in is for further understanding the present invention, and is the part of this explanation.Be understandable that disclosed various features of the present invention can arbitrary combination in specification sheets and accompanying drawing.
Description of drawings
Fig. 1 is the schematic isometric that the used exemplary apparatus structure of the overflow down draw smelting process that is used for making sheet glass is shown.
Fig. 2-the 8th such as illustrates at the schematic section of the typical embodiments of pressure pipe, forms the hole etc. pressure pipe in the weir and is used to receive cooling fluid and/or structural member.
Used Reference numeral sees table 1 for details in the accompanying drawing.
Embodiment
As mentioned above, a preferred method producing the LCD substrate is to adopt smelting process, wherein by making the melten glass large size ceramic structure of flowing through promptly wait pressure pipe to make it form glass ribbon.As time goes on, the size of LCD substrate increases, and present specification (Gen10) is about 2850mm * 3050mm.Each increase of size (width) means the corresponding increase of isobaric length of tube.
Along with to the transfer of making pressure pipe such as bigger, clear and definite challenge has been proposed the ability that obtains pressure pipe such as longer work-ing life.For present glass ingredient, the working temperature common etc. the pressure pipe weir approximately be 1220 ℃ and more than, this moment bottom working temperature is between 1180 ℃ and 1140 ℃.The refractory materials such as the zircon of pressure pipes such as this hot conditions can cause experience creep.Therefore etc. the Gen size is big more, and pressure pipe is big more, and the creep of generation is many more.
Stress distribution shows, as first order of solution, depends on and makes isobaric tube material institute inherent creep rate etc. the absolute amount of deflection (D) of pressure pipe
(unit: l/hr), and isobaric plumber do the time (t) and etc. pressure pipe length (L) and the height (H), wherein (k) is a constant:
From this equation as can be seen, when etc. the material, height of pressure pipe and working hour homogeneous phase simultaneously, double etc. the length of pressure pipe, amount of deflection has increased by 16 times.
The height of pressure pipes such as increase can increase amount of deflection potentially.Yet, etc. accessible basic restriction in the approaching present isobaric tube apparatus industry of the height of pressure pipe.Another kind method is to improve the pressure of pressure pipe both sides such as being applied to, so that creep resistance (is seen commonly assigned U.S. Patent application, publication number is US2003/0192349), but this method can be made significant limitation in waiting pressure pipe design, may cause glass flow to be lower than re-set target.Reducing the overall work temperature is another kind of feasible method, but this will need to develop the new glass ingredient that can handle at a lower temperature again.At last, the creep rate that is used to the stupalith of pressure pipes such as producing can reduce (see commonly assigned PCT patent, publication number is WO2002/044102) by the exploitation that improves material.Yet, even in this case, following substrate size and etc. the design of pressure pipe will continue to impel stupalith can't obtain sufficiently long work-ing life.
As mentioned above, in operating process, the hottest part of these pressure pipes is the weir normally.As the above, patent WO2002/044102 for example above-mentioned, the creep rate of zircon refractory material (and other high-temperature refractory) raises with temperature and increases.Therefore, with etc. the pressure pipe pipe shaft compare, the weir has the highest creep rate.
In addition, in use, the weir is subjected to the power and because the power (bulging force) of the outside effect that melten glass causes of the downward effect that caused by gravity in isobaric tube seat.In addition, this two power are arranged not only, and, the weir have much smaller than etc. the thickness of pressure pipe pipe shaft, therefore make the weir develop in time and especially experience dimensional instability.
Stop a possible way of the dimensional change of this sensitivity to be to use thicker weir.But, this way for etc. pressure pipe design have significant limitation, may influence glass flow and be lower than re-set target.
For the depression of pressure pipes such as reducing, proposed by in waiting pressure pipe pipe shaft, adopting the some of the recommendations in steady arm and hole.See U.S. Pat 3437470; Japanese Unexamined Patent Publication No JP11-246230; Japanese Unexamined Patent Publication No JP2006-298736; Japanese Unexamined Patent Publication No JP2006-321708; And Japanese Unexamined Patent Publication No JP2007-197303.It should be noted that, these referenced patents all do not recognize the raising susceptibility that changes for the weir size be because: 1) weir is exposed to higher working temperature usually, 2) weir is easy to be subjected to the influence of vertical and horizontal distortion power, and 3) with etc. the rest part of pressure pipe to compare the weir relative thinner.Equally, these quote the way that does not all have proposition to address this problem.
The present invention solves the instability problem on weir specially, contains a hole in each weir at least.As preliminary benefit, thereby the hole can be reduced the weight on weir and shared the load that the weir depression is produced.
Outside this, in certain embodiments, the hole is used for reducing the stupalith temperature inside of making the weir.For example, the fluid under the controllable temperature of the nominal temperature that is lower than the weir can pass through the hole with controllable flow rate.As follows, even the less relatively variation on temperature of the material of making the weir also can have remarkably influenced to the creep rate of material.
Fluid can be a kind of rare gas element of for example nitrogen, and for example the non-rare gas element of air supposes that then it is not exposed to non-rare gas element or liquid, as water if use molybdenum.If necessary, also can using gas or mixtures of liquids.For some application, flowing fluid ratio gas is more effective, because liquid has higher thermal capacity.
Though fluid can in some cases, may need the hole of fluid by the entrance end of pressure pipes such as originating in from both direction by the hole because the entrance end that melten glass such as enters at pressure pipe generally than etc. the terminal heat of pressure pipe.If fluid is taken away more heat from entrance end, it can help to make in order the thermal gradient along the weir, thereby helps feed glass to flow.In addition, fluid enters the hole from entrance end can help to reduce the temperature of melten glass in ingress, and this may be that some application is desired.Adopt a heat exchange structure, fluid can also have a plurality of passages to pass through the hole.For example, fluid can be incorporated into one with the pipe that contains centre hole that links to each other of ring on every side in.For example, fluid can flow into centre hole and return by ring.Like this, heat can more effectively be transferred to fluid.Perhaps, fluid can pass through centre hole for the second time for the first time by ring.Certainly, if necessary, can use more complicated heat exchanger structure.
In other embodiments, the hole is in order to the contained structure member, and structural member is made by the creep rate material lower than the material of forming the weir.Structural member can be solid, also the cross section of filling orifice wholly or in part.Under latter event, unfilled part can be used for cooling structure member and weir material simultaneously in the hole, and for example, fluid is by unfilled part in the hole, thus by the exposure of structural member and the inwall in hole.
In further embodiment, structural member can be hollow, and its skin is the cross section of filling orifice wholly or in part.In both cases, the hollow parts of structural member can be used for cooling, for example, transmits fluid and leads to structural member inside.If the skin of hollow structural members is the only partially filled cross section in hole, unfilled part also can be used for cooling in the hole.
Generally extend along the whole length on weir in the hole, though the one or both ends blind hole can be used for invention reality, for example, when cooling fluid passes through heat exchange structure.This structural member can be included in the weir or exceed outside the weir, and an end or preferred two ends have underwork.
Except the hole in each weir (having or the non-structure member), can in pipe shaft, comprise one or more holes etc. pressure pipe, that is, and in the position that is lower than the weir.As the hole that forms in the weir, the hole that forms in pipe shaft can comprise the structural member of filling orifice wholly or in part.Similar with the hole in the weir, the hole in the pipe shaft can be used for the creep rate of the inside cooling of reciprocity pressure pipe with pressure pipe pipe shaft materials such as reductions.
The weir and etc. the hole in the pressure pipe pipe shaft (during use) can be in waiting pressure pipe or preferably arrive base place boring when waiting pressure pipe to be shaped or original position shaping when making base.
The common process of pressure pipes such as manufacturing pottery base is the technology that multistep is rapid.For example, zircon admixtion or other stupalith as prepare the adhesive bonding agent with spraying drying.Then admixtion is placed a soft bag, vibration makes solids precipitation, and realizes preliminary compacting.Then sack is sealed, and place cold isostatic press to make structure compacting more fully.Can at high temperature sinter the structure of compacting into ceramic of compact then.
Can by with one or more by graphite or other inflammable material, for example the rod that solid or foam are natural or synthetic polymer is made as axle insert isobaric bag next on base substrate manufacturing hole, thereby change such technology.Then this admixtion is poured into and vibrated on every side along rod and make the tightr of batch particle structural arrangement.Then with sack sealing and etc. compression.Then compacted admixtion and rod are put into stove, at first burn rod, at high temperature carry out sintering then.In alternative techniques, the admixtion binding agent is at first burnt, and secondly is the presintering of structure.After being cooled to room temperature, from base substrate, remove rod, then high temperature sintering.
There is different size in the hole, and for example in pressure pipes such as Gen 10, the hole dimension scope is from several millimeters to several inches.Usually, pressure pipe such as cool off when inner in order to the hole of flowing through by fluid, adopt less hole when the hole.As mentioned above, this fluid flow provide a kind of from etc. the method for pressure pipe internal extraction heat, thereby reduce internal temperature and reduce the creep of material.The creep level of pressure pipes such as the minor alteration of temperature can significantly reduce.For example, as shown in table 2, for zircon, when temperature is reduced to 1180 ℃ from 1250 ℃, creep rate approximately reduces 50%.The amount of required fluid stream will depend on that fluidic thermal capacity, fluidic temperature, internal temperature need reduction, and etc. the specific geometry of pressure pipe.Flow velocity at application-specific is determined by those skilled in the art easily based on content disclosed by the invention.
As mentioned above, in certain embodiments, the hole can comprise structural member.These structural member preferably are lower than the material of making isobaric tube material by creep and constitute.For example, for pressure pipes such as zircons, structural member can be by aluminum oxide, silicon nitride, and silicon carbide, molybdenum, or material such as fiber reinforcing texture is formed.If molybdenum bar, preferably in the inert atmosphere of for example nitrogen to rod cladding or coat platinum to reduce oxidation.Even the material of these types all shows low-down creep at 1250 ℃, therefore can for zircon or other refractory materials form etc. pressure pipe extra support is provided.
In the LCD substrate was made, one of advantage that the present invention possessed was the material that sustainable use has been verified, as zircon.This material has been shown device manufacturers and has confirmed compatible with glass ingredient.The present invention such as has also enlarged at the pressure pipe design window.For example, the height of pressure pipes such as reduction can reduce depression and produce, and does not influence work-ing life.The cost of overall size two aspects of pressure pipes itself such as it has reduced and fusion apparatus.Reduce the chance that highly also helps to reduce secondary crystal, as described in commonly assigned PCT patent publication No. 03/055813.
Do not plan to limit by any way invention, the shown embodiment of Fig. 2-8 further illustrates the present invention.
Fig. 2 has shown an embodiment, its contain on weir 1 and 2 porose 35, waiting and adopting hole 43 in the pressure pipe pipe shaft.Hole 35 in the weir 1 and 2 is filled by structural member 41 and 42 respectively fully, and hole 43 is filled by structural member 45 fully.
What Fig. 3 showed is the replacement of Fig. 2 embodiment, and wherein the hole in the weir 1 and 2 35 is interconnection by another hole 37, and this hole 37 is filled by structural member just as hole 35.This embodiment has also been used the hole 43 of a circular structure, rather than the rectangular configuration among Fig. 2.
What Fig. 4 showed is an embodiment that is suitable for pressure pipe internal portions such as cooling off.5 less relatively holes are arranged in this embodiment, and wherein two are positioned at weir portion, and promptly the hole 35, other 3 in waiting pressure pipe pipe shaft, promptly the hole 43.
What Fig. 5 showed is the replacement of embodiment among Fig. 4, wherein adopts once more to be suitable for the refrigerative hole.This embodiment is waiting the pressure pipe pipe shaft to adopt a relatively large hole 43, and is provided with slotted eye 35 in weir 1 and 2.
What Fig. 6 showed is the replacement of embodiment among Fig. 5, and wherein structural member 41 and 42 is introduced in the hole 35, and structural member 45 is introduced in the hole 43.Cooling fluid can flow through the part that is not filled in hole or structural member self to be used for the depression of pressure pipes such as reducing.
Fig. 7 and 8 has shown the hollow structural members that can use ovalize, as shown in the figure.Adopt hollow structural members to have the advantage that reduces structural member weight.Equally, if necessary, cooling fluid can be by the middle portion of this structural member.Whether the shell that should be pointed out that structural member no matter filling orifice, and the hollow parts of this structural member still constitutes the not filling part in hole.
On the basis of aforementioned disclosed content, those multiple alter modes that do not break away from the scope of the invention and spirit all are conspicuous for a person skilled in the art.For example, have vertical side though the present invention such as discloses at the weir of pressure pipe, the weir with inclined side is suitable for too, for example, cross-sectional shape be V or Y type etc. pressure pipe, and on the outside surface of the upper end of these pressure pipe wedge-like portion, do not have knuckle.Equally, though Fig. 2-8 discloses pressure pipes such as single, by two or more individual components (can be identical or different material) form etc. pressure pipe also can be applied in the actual invention.Following claim is intended to cover embodiment and modification, change herein, and other equivalent substitute mode.
Table 1
| | Parts | |
| 9 | Feeder sleeve |
| 11 | |
| 13 | Etc. |
| 15 | Etc. the pressure pipe bottom |
| 17 | Schematically show the arrow of drawing |
| 19 | |
| 21 | First part etc. |
| 23 | Second section etc. |
| 25 | The internal surface on |
| 27 | The upper surface on |
| 29 | The outside surface on |
| 31 | First outside surface etc. the pressure pipe |
| 32 | Second outside surface etc. the pressure pipe |
| 33 | Etc. the part that contains wedge-shaped cross-section in the pressure pipe |
| 35 | The |
| 37 | Another hole of trench bottom |
| 41 | First |
| 42 | Second |
| 43 | |
| 45 | Structural member in the additional holes |
Table 2
| Creep rate (l/hr) | Temperature (℃) | The stress that applies (psi) |
| 1.39E-6 | 1250 | 1000(6895KN/m 2 |
| 0.633E-6 | 1180 | 1000(6895KN/m 2 |
Claims (20)
1. device that adopts smelting process molding glass band comprises:
Comprise the first part on groove and first, second weir, there are internal surface, upper surface and outside surface in each weir; And
The second section that comprises first outside surface and second outside surface, described first outside surface is the prolongation of the first weir outside surface, described second outside surface is the prolongation of the second weir outside surface, and first and second outside surfaces relative to each other are positioned to make at least a portion of described second section to have wedge-shaped cross-section;
Wherein, each weir comprises the hole:
(i) extend along the partial-length at least on described weir in described hole;
(ii) described hole to small part between the inside and outside surface on described weir.
2. device as claimed in claim 1 is characterized in that, for each weir, extend along the total length on described weir in described hole.
3. device as claimed in claim 1 is characterized in that, for each weir, described hole has circular cross section.
4. device as claimed in claim 1 is characterized in that, for each weir, described hole has oval cross section.
5. device as claimed in claim 1 is characterized in that, the hole on described first and second weirs is connected by another hole that is positioned under the described groove.
6. device as claimed in claim 1 is characterized in that this device further comprises first and second structural member, and described first structural member is positioned at the hole on described first weir, and described second structural member is positioned at the hole on described second weir.
7. device as claimed in claim 6 is characterized in that, under the working temperature of described device, the material that constitutes described first and second structural member demonstrates still less creep than the material that constitutes described weir.
8. device as claimed in claim 6 is characterized in that, described structural member is filled corresponding separately hole.
9. device as claimed in claim 6 is characterized in that, described structural member is partly filled corresponding separately hole.
10. device as claimed in claim 6 is characterized in that described structural member is hollow.
11. device as claimed in claim 1 is characterized in that, further comprises at least one additional holes, any part in this hole is not between the internal surface and outside surface on weir.
12. device as claimed in claim 11 is characterized in that, this device further comprises the structural member that is positioned at described additional holes inside.
13. device as claimed in claim 12 is characterized in that, the structural member that is arranged in described additional holes is to be made of the material that demonstrates still less creep than the material that constitutes the weir under the device working temperature.
14. device as claimed in claim 1 is characterized in that, described first and second parts are parts of integral material.
15. a method that adopts smelting process molding glass band comprises:
(A) provide melten glass in building mortion, described building mortion comprises first and second weirs, and each weir has:
(i) internal surface,
(ii) upper surface,
(iii) outside surface and
(iv) hole:
(a) described hole along the partial-length at least on described weir extend and
(b) described hole to small part between the inside and outside surface on described weir; With
(B) make fluid flow through described hole and cool off described weir.
16. method as claimed in claim 15 is characterized in that:
(a) described building mortion further comprises first and second structural member, and described first structural member is positioned at the hole on described first weir, and described second structural member is positioned at the hole on described second weir;
(b) described structural member is partly filled corresponding separately hole; With
(c) the not filling part in the described hole of fluid process, and cool off described weir and described structural member.
17. method as claimed in claim 16 is characterized in that, under the working temperature of device, the material that constitutes described first and second structural member demonstrates still less creep than the material that constitutes described weir.
18. method as claimed in claim 15 is characterized in that:
(a) described building mortion comprises at least one additional holes, this hole without any part between the internal surface and outside surface on weir.
(b) fluid flows through described additional holes and cools off described building mortion.
19. method as claimed in claim 18 is characterized in that:
(a) described building mortion further comprises the structural member that is positioned at described additional holes;
(b) described structural member is partly filled described additional holes; With
(c) flow through in the described additional holes unfilled part and cool off described building mortion and described structural member of fluid.
20. method as claimed in claim 19 is characterized in that, the structural member that is arranged in described additional holes is to be made of the material that demonstrates still less creep than the material that constitutes described weir under the building mortion working temperature.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US9293108P | 2008-08-29 | 2008-08-29 | |
| US61/092,931 | 2008-08-29 | ||
| PCT/US2009/004923 WO2010024937A2 (en) | 2008-08-29 | 2009-08-28 | Isopipes having improved dimensional stability |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102149646A true CN102149646A (en) | 2011-08-10 |
| CN102149646B CN102149646B (en) | 2013-05-22 |
Family
ID=41722188
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009801336106A Expired - Fee Related CN102149646B (en) | 2008-08-29 | 2009-08-28 | Isopipes having improved dimensional stability |
Country Status (5)
| Country | Link |
|---|---|
| JP (1) | JP5613670B2 (en) |
| KR (1) | KR101618390B1 (en) |
| CN (1) | CN102149646B (en) |
| TW (1) | TWI385129B (en) |
| WO (1) | WO2010024937A2 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103764577A (en) * | 2011-08-31 | 2014-04-30 | 康宁股份有限公司 | Ceramic forming devices with a honeycomb structure and methods |
| CN110248901A (en) * | 2016-11-22 | 2019-09-17 | 康宁股份有限公司 | It is used to form the formed body of continuous glass tape and the glass forming apparatus comprising it |
| CN110255865A (en) * | 2019-05-07 | 2019-09-20 | 成都光明光电股份有限公司 | The equipment and its design method of inside and outside overflow down draw formed glass pipe |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI535672B (en) | 2010-05-28 | 2016-06-01 | 康寧公司 | Composite isopipe |
| EP3253720A1 (en) * | 2015-02-04 | 2017-12-13 | Corning Incorporated | System for forming a glass article |
| US9840431B2 (en) | 2016-01-11 | 2017-12-12 | Corning Incorporated | Methods and apparatuses for supporting forming bodies of glass forming apparatuses |
| KR102347707B1 (en) | 2016-04-07 | 2022-01-06 | 코닝 인코포레이티드 | Forming body for forming continuous glass ribbon and glass forming apparatus comprising same |
| US20210300807A1 (en) * | 2018-08-10 | 2021-09-30 | Corning Incorporated | Apparatus and methods for fabricating glass ribbon |
| CN112566874A (en) * | 2018-08-13 | 2021-03-26 | Ａｇｃ株式会社 | Glass plate manufacturing device and molding member used in glass plate manufacturing device |
| JPWO2022131179A1 (en) * | 2020-12-16 | 2022-06-23 | ||
| CN116438144A (en) * | 2020-12-16 | 2023-07-14 | 日本电气硝子株式会社 | Glass forming device |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050160767A1 (en) * | 2004-01-28 | 2005-07-28 | Robert Novak | Horizontal sheet movement control in drawn glass fabrication |
| 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 |
| JP4673275B2 (en) * | 2006-09-13 | 2011-04-20 | 田中貴金属工業株式会社 | Method for producing sheet glass by fusion downdraw method |
| JP5076443B2 (en) * | 2006-10-24 | 2012-11-21 | 日本電気硝子株式会社 | Glass ribbon manufacturing apparatus and manufacturing method thereof |
| 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 |
-
2009
- 2009-08-28 WO PCT/US2009/004923 patent/WO2010024937A2/en active Application Filing
- 2009-08-28 TW TW098129189A patent/TWI385129B/en not_active IP Right Cessation
- 2009-08-28 KR KR1020117006613A patent/KR101618390B1/en not_active IP Right Cessation
- 2009-08-28 CN CN2009801336106A patent/CN102149646B/en not_active Expired - Fee Related
- 2009-08-28 JP JP2011525010A patent/JP5613670B2/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103764577A (en) * | 2011-08-31 | 2014-04-30 | 康宁股份有限公司 | Ceramic forming devices with a honeycomb structure and methods |
| CN110248901A (en) * | 2016-11-22 | 2019-09-17 | 康宁股份有限公司 | It is used to form the formed body of continuous glass tape and the glass forming apparatus comprising it |
| CN110248901B (en) * | 2016-11-22 | 2023-01-31 | 康宁股份有限公司 | Forming body for forming continuous glass ribbon and glass forming apparatus comprising same |
| CN110255865A (en) * | 2019-05-07 | 2019-09-20 | 成都光明光电股份有限公司 | The equipment and its design method of inside and outside overflow down draw formed glass pipe |
| CN110255865B (en) * | 2019-05-07 | 2021-06-29 | 成都光明光电股份有限公司 | Equipment for forming glass tube by internal and external overflow down-drawing and design method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2010024937A3 (en) | 2010-05-27 |
| JP5613670B2 (en) | 2014-10-29 |
| KR20110058832A (en) | 2011-06-01 |
| CN102149646B (en) | 2013-05-22 |
| TW201024235A (en) | 2010-07-01 |
| KR101618390B1 (en) | 2016-05-04 |
| JP2012501289A (en) | 2012-01-19 |
| TWI385129B (en) | 2013-02-11 |
| WO2010024937A2 (en) | 2010-03-04 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102149646B (en) | Isopipes having improved dimensional stability | |
| CN1486286B (en) | Sag control of isopipes used in making sheet glass by the fusion process | |
| TWI332487B (en) | Defect reduction in manufacture glass sheets by fusion process | |
| US20120133088A1 (en) | Large refractory article and method for making | |
| CN101652327B (en) | Isopipe design feature to eliminate sag | |
| US7762105B2 (en) | Backup structure for an uprising pipe or downfalling pipe in a vacuum degassing apparatus | |
| KR102522821B1 (en) | Method and apparatus for manufacturing glass articles | |
| US20140318523A1 (en) | Method of making a glass forming apparatus with reduced weight | |
| CN102365243B (en) | High delivery temperature isopipe materials | |
| KR101838313B1 (en) | Composite isopipe | |
| JP6248944B2 (en) | Method for manufacturing molten glass conveying equipment element and method for manufacturing glass article | |
| US9120691B2 (en) | Isopipe sag control using improved end support conditions | |
| AU2015250684B2 (en) | Castable refractory material | |
| US20030192349A1 (en) | Method for controlling fusion pipe sag | |
| CN103764577A (en) | Ceramic forming devices with a honeycomb structure and methods | |
| JPWO2020049944A1 (en) | Manufacturing method and manufacturing equipment for glass articles | |
| JP2021062990A (en) | Device for conveying molten glass, and equipment and method for manufacturing glass article | |
| CN103663933B (en) | The manufacture method of glass plate and the manufacture device of glass plate | |
| CN108409110A (en) | The manufacturing method of glass substrate | |
| JP2020045262A (en) | Molding device, and plate glass manufacturing method | |
| CN110587810A (en) | Double-skin wall production method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130522 Termination date: 20180828 |