CN105050969B - With sensing heating so that the method and apparatus that the devitrification on edge guide member minimizes - Google Patents
With sensing heating so that the method and apparatus that the devitrification on edge guide member minimizes Download PDFInfo
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- CN105050969B CN105050969B CN201380067490.0A CN201380067490A CN105050969B CN 105050969 B CN105050969 B CN 105050969B CN 201380067490 A CN201380067490 A CN 201380067490A CN 105050969 B CN105050969 B CN 105050969B
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- Prior art keywords
- guide member
- edge guide
- melten glass
- edge
- induction
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Classifications
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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
- C03B17/064—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
- C03B17/06—Forming glass sheets
- C03B17/068—Means for providing the drawing force, e.g. traction or draw rollers
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- General Induction Heating (AREA)
- Glass Melting And Manufacturing (AREA)
- Surface Treatment Of Glass (AREA)
Abstract
Fusion drawing method includes at least one intersection of the edge guide member and a pair of forming surface portion tilted down and by carrying out heating to edge guide member via induction so that the minimum temperature at least part surface of edge guide member contact melten glass is maintained above predetermined amount so that melten glass flows through edge guide member.
Description
Cross reference to related applications
This application claims the U.S. Provisional Application sequence submitted on December 21st, 2012 the 61/740,541st and 2013
The priority for the U.S. Provisional Application sequence the 61/880th, 332 that on September is submitted for 20, full text are incorporated by reference this
Text, as detailed below.
Background
Technical field
The present disclosure relates generally to the manufactures of sheet glass, more particularly, to the manufacture glass with edge guide member
The device and method of piece.
Background technology
Glass making system is commonly used to form various glass products, such as LCD sheet glass.By making the glass of melting exist
It is flowed downward on forming wedge come to manufacture sheet glass be known.Edge guide member usually is provided in the opposite end of forming wedge, with side
Help the sheet glass width and edge bead characteristic needed for realizing.
In the fabrication process, cooling and devitrification can be occurred by the glass on edge guide member, the product on edge guide member
It is tired.The accumulation can lead to the relevant defect of the shape of glass and other defect, and be forced that edge guide member is frequently replaced.Cause
This, it is required that the method that the accumulation of the devitrified glass on edge guide member minimizes.
Invention content
Embodiment as described herein is related to the device and method for manufacturing sheet glass, has through sensing heating
Edge guide member.
According to one embodiment, the fusion drawing for manufacturing sheet glass includes：So that melten glass flows through forming wedge
The forming surface portion that a pair tilts down, the forming surface portion tilted down are assembled to form root along downstream direction
Portion.The method further includes so that melten glass flows through at least one phase with the pair of forming surface portion tilted down
The edge guide member of friendship.In addition, the method further includes by being heated to edge guide member via induction, by margin guide
The minimum temperature at least part surface that part is contacted with melten glass is maintained above predetermined amount.The method further include from
The root draws molten glass of shape wedge, to form sheet glass.
In another embodiment, the equipment for pulling down sheet glass includes：Wedge is shaped, is tilted down with a pair
Forming surface portion, the forming surface portion tilted down assembles in the bottom of forming wedge, forms root, and limit drawing
Line processed, melten glass is along the draw line.The equipment further includes and the pair of forming surface portion tilted down
The edge guide member of at least one contact.The edge guide member includes the line of induction at the surface rear for being placed in edge guide member
Circle, for by via induction edge guide member is heated, at least one that edge guide member is contacted with melten glass
The minimum temperature on point surface is maintained above predetermined amount.
It should be understood that foregoing general description and the following detailed description describe various embodiments, for carrying
For understanding the claimed property of theme and the overview of characteristic or frame.Including attached drawing provide to various embodiment party
Formula is further understood from, and attached drawing is incorporated in the present specification and a part for constitution instruction.Attached drawing is said with graphic form
Various embodiments described herein is illustrated, and is used for explaining principle and the operation of claimed theme together with specification.
Description of the drawings
Fig. 1 is the schematic diagram of the equipment for manufacturing glass；
Fig. 2 is the cross-sectional perspective view of equipment along the line 2-2 of Fig. 1, shows first example of heat shielding equipment；
Fig. 2A is the perspective view of the equipment of the example with another heat shielding equipment；
Fig. 3 is the perspective view of the edge guide member of sensing heating, it is shown that the schematic diagram of induction heating system；
Fig. 4 is the perspective view of induction coil construction；
Fig. 5 A and 5B are the perspective view of the alternate embodiments of induction heating system component respectively；
Fig. 6 A and 6B be respectively have backboard and be placed in backboard rear induction coil edge guide member sectional view and
Perspective view；And
Fig. 7 is the perspective view of the edge guide member with backboard, wherein the inner surface of backboard contacts molten with edge guide member
Melting the area filling between the inner surface of glass has heat conduction pearl.
Specific implementation mode
It is described more detail below and is manufactured for sheet glass and various embodiments including its technology for making glass.As long as
It is possible that making that same or similar part is denoted by the same reference numerals in all the appended drawings.It usually, can be by molten
Change glass batch materials material to form melten glass, then moltens glass into sheet glass to form sheet glass material.Example
Property method include float glass process, slot draw and fusion glass tube down-drawing.
Fig. 1 shows the schematic diagram of the equipment 10 for manufacturing glass (such as sheet glass 12).Equipment 10 may include melting
Container 14 is configured to receive batch material 16 from storage bin hopper 18.It can be by the batch of material conveying device that is driven by motor 22
Batch material 16 is introduced into melt container 14 by 20.Optional controller 24 can be provided to activate motor 22, can be used
Melten glass horizontal probe 28 is horizontal to measure the glass melt in vertical tube 30, and the information measured is transferred to controller 24.
Equipment 10 may also include positioned at 14 downstream of melt container and by way of the first connecting tube 36 and melt container
14 connected Fining vessels 38 (such as finer).Mixing vessel 42 (for example, teeter chamber) may be alternatively located under Fining vessel 38
Trip, transferring case 46 (for example, bowl) can be located at the downstream of mixing vessel 42.As indicated, the second connecting tube 40 can connect clarification
Container 38 and mixing vessel 42, third connecting tube 44 can connect mixing vessel 42 and transferring case 46.As further shown, may be used
Downcomer 48 is placed, glass melt is delivered to the import 50 of forming containers 60 from transferring case 46.As shown, melting is held
Device 14, Fining vessel 38, mixing vessel 42, transferring case 46 and forming containers 60 are the examples at glass melt station, they can be with
It is placed along equipment 10 in the form of concatenated.
Melt container 14 usually by refractory material (such as refractory brick (such as Ceramic Tiles) manufacture.Equipment 10 may also include usually
The component manufactured by platinum or platinum metal (such as platinum-rhodium, platinum-iridium and combinations thereof), but they also may include following fire resisting gold
Belong to, such as molybdenum, palladium, rhenium, tantalum, titanium, tungsten, ruthenium, osmium, zirconium and its alloy and/or zirconium dioxide.Platiniferous component may include following
It is one or more：First connecting tube 36, Fining vessel 38, the second connecting tube 40, vertical tube 30, mixing vessel 42, third connecting tube
44, transferring case 46, downcomer 48 and import 50.Forming containers 60 can also be manufactured by refractory material, and be designed to shape
At sheet glass 12.
Fig. 2 is the cross-sectional perspective view of equipment 10 along the line 2-2 of Fig. 1.As indicated, forming containers 60 include forming wedge 62, institute
It includes a pair of forming surface portion 66a, 66b tilted down to state forming wedge 62, can be in the opposite end of the forming wedge 62
Extend between 64a, 64b.Forming surface portion 66a, the 66b tilted down is assembled along downstream direction 68, to form root 70.
Draw plane 72 extends through root 70, wherein can be with downstream direction 68 along 72 draw glass sheet 12 of the draw plane.
As indicated, root 70 can be divided into two by draw plane 72, but draw plane 72 also can be relative to root 70 with other courts
To extension.The aspect of the present invention can be used for various forming containers.For example, the aspect of the present invention can be used for carrying on May 21st, 2009
The equipment for reducing the radiant heat loss from formed body of the U.S. Provisional Patent Application the 61/180th, 216 of friendship is complete
Text is incorporated herein by reference.
Forming containers 60 may include what at least one of forming surface portion 66a, 66b for being tilted down with a pair intersected
Edge guide member.In other examples, forming surface portion 66a, 66b all phases that edge guide member can be tilted down with two
It hands over.Additionally or alternatively, edge guide member can be respectively placed in the opposite end of forming wedge 62.For example, as shown in Figure 1, edge draws
Guiding element 80a, 80b can be respectively placed in opposite end 64a, 64b of forming wedge 62, and edge guide member 80a, 80b are each configured to and two
A forming surface portion 66a, 66b tilted down intersects.As further shown, each edge guide member 80a, 80b are bases
This is mutually identical, but in other examples, edge guide member can have different characteristic.According to aspects of the present invention, may be used
To use various forming wedges and edge guide member to construct.For example, the aspect of the present invention can be used for U.S. Patent No. 3,451,798
Number, U.S. Patent No. 3,537,834, U.S. Patent No. 7,409,839 and/or on 2 26th, 2009 U.S. submitted faces
When the 61/155th, No. 669 revealed forming wedge of patent application and edge guide member configuration, full text be incorporated by reference this
Text.
Fig. 2 and 2A is only an exemplary edge guiding piece for showing aspect for use in the present invention.It is discussed below
First edge guiding piece 80a, it should be understood that in some instances, second edge guiding piece 80b can be guided with first edge
Part 80a is similar or identical.There is provided identical edge guide member can be beneficial to provide uniform sheet glass, but margin guide
Part can have different characteristic to provide different sheet glass characteristics and/or be configured suitable for various forming containers.
Fig. 2 and 2A shows that first relative to forming wedge 62 tilts down the first edge that forming surface portion 66a is placed
The first side of guiding piece 80a.Although it is not shown, first edge guiding piece 80a further includes second relative to forming wedge 62
Tilt the second side that forming surface portion 66b is placed.The second side of first edge guiding piece 80a is the first side about by root 70
The mirror image for the draw plane 72 being divided into two.As indicated, the first side includes first surface 82, it is downward with the first of forming wedge 62
Tilt forming surface portion 66a intersections.Although it is not shown, the second side of first edge guiding piece 80a also includes and forming
The second of wedge 62 tilts the essentially identical surface of forming surface portion 66b intersections.
Opposite end 64a, 64b of forming wedge 62 can be respectively provided with cushion block 84, be designed to help laterally disposed corresponding
First and second edge guide member 80a, 80b.Optionally, as indicated, first edge guiding piece 80a may include part 86 under
Part 88.In some instances, lower part 88 can make the first edge guiding piece 80a and second on the first opposite end 64a
Second edge guiding piece 80b engagements on the 64b of opposite end.Edge guide member 80a, 80b are bonded together and can help to simplify
The assembling of edge guide member 80a, 80b and forming wedge 62.In other examples, can be separately provided edge guide member 80a,
The upper part 86 of 80b.For example, as indicated, first edge guiding piece 80a can be separated with second edge guiding piece 80b, and it is independent
Forming surface portion 66a, 66b that a pair of ground and forming wedge 62 tilts down are assembled respectively.For certain constructions, provide
Uncombined upper part 86 can simplify the manufacture of edge guide member 80a, 80b.By providing the different tables relative to forming wedge 62
Face, edge guide member 80a, 80b can be respectively provided with various directions and geometrical morphology.
Equipment 10 for manufacturing glass may also include at least one edge roller arrangement comprising a pair of of edge rollers, structure
It causes that when band is pulled out from the root 70 of forming wedge 62, the respective edges of glass tape can be engaged.The pair of edge rollers
Contribute to the appropriate finishing at the edge of sheet glass.Edge rollers fine grinding provides required local edge for the marginal portion of melten glass
With fusion appropriate, the melten glass from the apparent surface of edge guide member pull out, the edge guide member with it is the pair of
Forming surface portion 66a, the 66b tilted down is associated.In one example, edge rollers can be located at the glass drawn from 70
At various positions in adhesive region.For example, edge rollers can be located at from immediately 70 lower section of root to about 15 English less than root 70
Any position at very little place, but in other examples, also contemplate for other positions.In other examples, edge rollers can be located at root
Position in 70 lower section about 8-10 inch ranges of portion.
As shown in Figure 1, first edge roll assembly 130a is associated with first edge guiding piece 80a, second edge roll assembly
130b is associated with second edge guiding piece 80b.As further shown, each edge roll assembly 130a, 130b are substantially mutually
It is identical, but in other examples, the pair of edge rollers can have different characteristic.
Fig. 2 shows the exemplary edge roll assembly of aspect for use in the present invention.First edge roll assembly is discussed below
130a, it should be understood that in some instances, second edge roll assembly 130b can be similar to first edge roll assembly 130a
Or it is identical.As shown in Fig. 2, first edge roll assembly 130a includes first pair of edge rollers 132 comprising first edge roller 132a
With second edge roller 132b.Edge rollers 132a, 132b are configured to engage the first side of sheet glass 12 and the second side simultaneously.First side
Edge roll assembly 130a further includes the first axle 134a attached with first edge roller 132a, and attached with second edge roller 132b
Second axis 134b.First axle 134a and the second axis 134b extend through sealing plate 136, and being configured to can by motor (not shown)
Rotationally drive.The open end that sealing plate 136 is configured as accommodating the region of motor provides encapsulating.Sealing plate may include fire resisting
Material, steel or other thermal barriers, with other mechanism for protecting the sensing assembly of motor and/or in housing region.
It can also be that forming containers 60 provide heat shielding equipment comprising at least one phase with edge guide member 80a, 80b
Associated heat shielding.Heat shielding be configured to reduce the thermal losses respectively from respective edges guiding piece 80a, 80b reach it is non-targeted
Region especially reduces thermal losses and reaches cooling edge rollers.Such nontarget area may include the neighbouring of glass manufacturing equipment
Region and/or the other positions that the Heat transmission from edge guide member can be received.As shown in Figure 1, the first heat shielding equipment
110a includes heat shielding 120a associated with first edge guiding piece 80a.Similarly, the second heat shielding equipment 110b include with
The associated second heat shielding 120b of second edge guiding piece.As further shown, each heat shielding equipment 110a, 110b is base
This is mutually identical, but in other examples, heat shielding equipment can have different characteristic.Identical heat shielding equipment is provided
It can be beneficial to provide the heat shielding of similar edge guide member, but heat shielding equipment can have different characteristic various to be suitable for
Forming containers configure.
Fig. 2 shows the only one exemplary hot shielding device of aspect for use in the present invention.The first heat is discussed below
Shielding device 110a, it should be understood that in some instances, the second heat shielding equipment 110b can be with the first heat shielding equipment
110a is similar or identical.
First heat shielding can be placed in below a part or entire first edge guiding piece, and be shown greatly relative to forming
The length dimension of wedge and in close proximity to the length direction of edge roll shaft extend.As shown in Fig. 2, the first heat shielding 120a can be placed in
Positioned at the lower section of the first edge guiding piece 80a of only only a part.Below the only first edge guiding piece 80a of a part
Position provide the first heat shielding 120a can provide for reach nontarget area thermal losses sufficient decline, avoid simultaneously
The interference of the possible melten glass for the pull-out of root 70 from forming wedge 62.
First heat shielding can also fully extend below first edge guiding piece.For example, Fig. 2A is shown and first edge
Another example of the associated first heat shielding equipment 210a of guiding piece 80a.As indicated, the first heat shielding equipment 210a includes
Hot plate 222 has the end 224 of the inside for the respective edges 13 for terminating at sheet glass 12.In one example, hot plate 222
Extend only with respect to the side of sheet glass 12, to allow heat shielding to extend in the lower section of entire first edge guiding piece.Alternatively,
As indicated, hot plate 222 may include seam 226, to provide the channel at the edge 13 and respective edges part of sheet glass 12.In this way, hot
The end 224 of plate 222 extends relative to the both sides of sheet glass 12, while allowing heat shielding in entire first edge guiding piece 80a
Lower section extend.Heat shielding is positioned to the lower section extension of entire first edge guiding piece 80a can to draw from first edge
The thermal losses that guiding element 80a reaches nontarget area minimizes.
Fig. 3 shows the edge assembled with the forming wedge 62 ' with a pair of forming surface portion 66a ' tilted down, 66b '
The example of guiding piece 80 '.Edge guide member 80 ' includes upper part 86 ' and lower part 88 ', edge guide member 80 ' and forming wedge
62 ' are shown as the left perspective view in bottom in figure 3.Induction coil 90 is placed in the surface rear of edge guide member 80 '.Induction coil 90 wraps
Multiple revolutions are included, are enough to lead to the desired amount of edge guide member after being fully applied with alternating current to induction coil 90
80 ' sensing heating.
Fig. 3 also shows the induction heating system 1000 that can be used for promoting to heat edge guide member 80 ' via induction
Schematic diagram.Induction heating system 1000 includes AC power 500, heating station 550, the cooler for supplying cooling fluid
400 and controller 600.Induction heating system 1000 further includes cooling fluid input line 402, be used for by cooling fluid stream from
Cooler 400 is oriented to AC power 500, heating station 550, induction coil 90 and cooling fluid output line 452, be used for by
Cooling fluid stream leads back to cooler 400 from induction coil 90.In addition, induction heating system 1000 include positioned at AC power 500,
Circuit 502,504,506,508 between heating station 550 and induction coil 90.Induction heating system 1000 includes extraly control
Circuit 602 provides management control, including margin guide for realizing controller 600 to the sensing heating of edge guide member 80 '
The minimum temperature at least part surface that part is contacted with melten glass.
In a preferred embodiment, cooling fluid is water.
In operation, by circuit 502,504,506 and 508 from AC power 500 to heating station 550 and induction coil 90
There is provided alternating current, meanwhile, by cooling fluid output and input line 402,452 by cooling fluid be directed through AC power 500,
Heating station 550 and induction coil 90.It can be by controller 600 and control loop 602 to the amount and frequency of alternating current and cold
But the flow velocity of fluid is carried out at the same time control, is controlled to provide the management of sensing heating of edge guide member 80 '.Such control can
To be e.g., including or it is sent to computer processing unit, which can be with for example, according to well known by persons skilled in the art
Process control method processing feedback or feedforward control.
In addition, the control may be implemented by sensing that edge guide member is heated so that edge guide member with
The minimum temperature at least part surface of melten glass contact maintains stable state, as close as steady temperature.Example
Such as, the minimum temperature on at least part of surface that edge guide member is contacted with melten glass can maintain stable state, with
The scheduled scheduled time span of constant temperature, it is more than ± 10 DEG C that the scheduled temperature, which will not change, such as no more than ± 5
DEG C, in another example being no more than ± 2 DEG C, in another example being no more than ± 1 DEG C.The scheduled time span can be at least 1 hour, such as extremely
It is 10 hours few, in another example at least 25 hours, including 1 hour to 10 years, such as 10 hours to 5 years, in another example 20 hours to 1 year,
But not limited to this.
In a preferred embodiment, such minimum temperature should be maintained at least at higher than the surface for flowing through edge guide member
Melten glass liquidus temperature so that the accumulation of devitrified glass on edge guide member minimizes, but not limited to this.
For example, in some preferred embodiments, melten glass is borosilicate glass, then minimum temperature should be maintained above boron
Above the liquidus temperature of silicate glass.In some preferred embodiments, edge guide member is contacted with melten glass
Surface should be maintained above 1150 DEG C, such as higher than 1200 DEG C, in another example it is higher than 1250 DEG C, including 1000-1700 DEG C, including
1100-1600 DEG C, further include 1150-1400 DEG C.
Edge guide member 80 ', induction coil 90 and induction heating system 1000 may be additionally configured to quickly change margin guide
The minimum temperature at least part surface that part is contacted with melten glass, for example, response may require that such temperature change it is predetermined because
Element.For example, if to change the composition for the glass for flowing through edge guide member to make its liquidus temperature also change, it can
So that the minimum temperature at least part surface of edge guide member also correspondingly changes.For this purpose, can be whole by controller 600
It closes in control algolithm, not only controls induction heating system, also played control whole equipment as shown in Figure 1,
In, the temperature on the surface of edge guide member, which can respond, is either expected any number of technological parameter or measures or required glass
Glass characteristic (including but not limited to, glass composition, glass temperature, glass devitrification temperature, glass viscosity and glass flow) carries out
Variation.
For example, embodiments disclosed herein include it is following those：Wherein, edge guide member contacts melten glass extremely
The minimum temperature on few a part of surface can be every at least 10 DEG C when temperature is at least 1000 DEG C (including 1000-1400 DEG C)
The rate of minute changes, including at least 20 DEG C per minute, such as 10-30 DEG C per minute.
Induction coil 90 can be configured to positioned at the surface rear of edge guide member 80 ', and mode is realized by via sense
Reply edge guide member 80 ' directly heats, and edge guide member is contacted to the minimum temperature at least part surface of melten glass
Degree is maintained above predetermined amount.For this purpose, induction coil 90 can be configured to draw with the edge of variable loop density/unit area
Guiding element 80 ', or be placed at a distance from different with edge guide member 80 ', so that edge guide member contact melten glass
The temperature on surface is changed to edge guide member from the maximum temperature a little or from a region on the surface of edge guide member
The lower temperature at other points or other regions on surface.In this way it is possible to exist on the surface of edge guide member
Temperature curve, wherein the difference of maximum temperature and minimum temperature on the surface of edge guide member is changed with predetermined amount.
For example, in the embodiment shown in fig. 3, induction coil 90 is configured to the lower part embedded in edge guide member
The amount of the loop density at 88 ' surface rear is more than the surface rear positioned at the upper part 86 ' of edge guide member.In the embodiment party
In formula, as melten glass flows through edge guide member 80 ', it is contemplated that the local maximum temperature on the surface of edge guide member can be located at side
At point or region in the lower part 88 ' of edge guiding piece 80 '.
(unshowned) other embodiment may include it is following those：Wherein, the line of the per unit area of induction coil 90
Circle density is more uniformly distributed at the whole surface rear of edge guide member 80 '.(unshowned) additional embodiments may include as follows
Those：Wherein, induction coil 90 is configured to the loop density at the surface rear embedded in the upper part 86 ' of edge guide member 80 '
Amount is more than the surface rear of the lower part 88 ' positioned at edge guide member.
For example, embodiments disclosed herein include it is following those：Wherein, there is temperature on the surface of edge guide member
It writes music line so that edge guide member contacts the maximum temperature on the surface of melten glass than the minimum on the surface of edge guide member
At least 25 DEG C of temperature height, for example, at least 50 DEG C, in another example at least 100 DEG C.For example, embodiment as described herein may include as
Descend those：Wherein, the difference of the maximum temperature on the surface of edge guide member and minimum temperature is 25-250 DEG C, such as 50-150
℃.For the position relationship on the surface of temperature and edge guide member, which can be approximately linear or nonlinear.
Embodiments disclosed herein include it is following those：Wherein, by incuding the heat provided to edge guide member
As the position on edge guide member surface is with scheduled curvilinear motion.For example, in the exemplary embodiment, being provided by incuding
Heat to edge guide member can be increased or decreased with the relationship of the upright position on edge guide member surface.Preferred
In embodiment, as the upright position on edge guide member surface reduces, by incuding the heat provided to edge guide member
Increase.
For example, induction coil can be configured to such as under type：So that reaching the Heat transmission effect on each surface of edge guide member
Rate maximizes and/or provides the heat flux for being more uniformly distributed degree on each surface for reaching edge guide member.For example, such as Fig. 4 institutes
Show, induction coil may be arranged so that coil extends through at least three region, and first is near edge guide member center
Region 90A (hereinafter referred to as " central area ") and it is located at other two regions 90B, 90C of central area side (hereafter
It is referred to as " the first pterion " and " the second pterion ").In certain illustrative embodiments, for example, as shown in figure 4, in center
The part of the coil extended in domain is configured to protrude forward relative to the first pterion and the second pterion.In some embodiments,
For example, as shown in figure 4, part of the coil in central area with being arranged so that the vertical V of coil mode is extended to than coil
The degree for extending vertically bigger in one pterion and the part in the second pterion, and coil is in the first pterion and the second pterion
Part with being arranged so that their transverse direction H mode extends to the journey of the horizontal extension bigger of the part than coil in central area
Degree.In certain illustrative embodiments, for example, as shown in figure 4, part of the coil in central area has at least three substantially
Parallel circuit, the circuit is around central shaft CA, and part and coil of the coil in the first pterion are in the second pterion
In part be respectively provided with the substantially parallel circuit of at least two, the circuit is respectively around the first wing axis 1WA and the second wing axis
2WA, wherein first wing axis and the second wing axis intersect at the point X on the plane P perpendicular to central shaft.
Embodiment as described herein include it is following those：Wherein, edge guide member 80 ' is selected from the group including at least one
Material：Platinum, iridium, palladium, rhodium and include at least one alloy as above.In a specific preferred embodiment, edge draws
Guiding element 80 ' includes platinum.Edge guide member ' 80 also may include the alloy of platinum and tin.
The thickness of edge guide member 80 ' is preferably smaller than 10 millimeters, such as 0.5-5 millimeters, including about 1 millimeter, but is not limited to
This.The thickness can be relative constant or can be variation.
In it is desirable that carrying out direct-fired certain illustrative embodiments to edge guide member by induction, induction coil
90 should be preferably embedded in the rear on the surface of edge guide member 80 ', at the maximum temperature for wishing edge guide member, as far as possible
Close to the surface of edge guide member.For example, in a preferred embodiment, induction coil 90 may be arranged so that coil near
The inner surface of the partial distance edge guide member 80 ' of the inner surface of edge guide member 80 ' is less than 10 millimeters, is, for example, less than 5 millimeters,
In another example being less than 2 millimeters.
Embodiment as described herein include it is following those：Wherein, induction coil 90 includes at least one selected from the group below
Material：Copper, nickel, platinum, gold, silver and include at least one alloy as above.In specific preferred embodiment, induction coil
90 include copper.
In certain illustrative embodiments, it can use and provide such as Thermal protection, mechanical protection and/or corrosion protection extremely
A kind of few material coats induction coil 90, is isolated, encapsulation or is embedded.For example, in certain illustrative embodiments
In, it includes at least one material selected from aluminium oxide and silica that can use textile material encapsulation induction coil, the textile material
Material.
For example, embodiment as described herein include it is following those：Wherein, induction coil 90 includes copper pipe, the copper pipe
Overall diameter be 2-15 millimeters, such as 4-10 millimeters, in another example 4-7 millimeters.In such embodiment, copper pipe can with for example,
With 0.5-1 millimeters of radial thickness.
When edge guide member 80 ' includes platinum, induction coil 90 should be preferably arranged to realize the sensing heating of platinum so that
The minimum temperature at least part surface of edge guide member is at least 1000 DEG C, for example, at least 1100 DEG C, in another example at least
1150 DEG C, in another example at least 1200 DEG C, in another example at least 1250 DEG C, or even in another example 1300 DEG C, including 1000-1700 DEG C, example
Such as 1100-1600 DEG C, in another example 1200-1500 DEG C.The sensing heating can depend on returning for the induction coil 90 of per unit area
Revolution, the proximity of the inner surface of induction coil 90 and edge guide member 80 ' and is supplied to induction coil from AC power 500
The amount and frequency of 90 alternating current.
Preferred embodiment include it is following those：Wherein, power supply provides at least power of 5kW, for example, at least 7.5kW's
Power in another example at least power of 15kW, includes the power of 2-20kW in another example at least power of 10kW, such as 5-15kW
Power, and the alternating current of at least frequency of 50kHz is provided, for example, at least 100kHz, in another example at least 150kHz, such as 50-
250kHz, but not limited to this.
Following cooling fluid can be provided, flow velocity and temperature prevent induction coil 90 departing from desired softening,
Deformation or fusing, while AC power 500 being kept to be fully cooled.For example, can be provided from cooler 400 to induction coil 90 cold
But water, temperature are about 0-50 DEG C, including about 25 DEG C.Cooling fluid flow velocity can be for example, about 0.5-10 liters/min, such as
About 1-5 liters/min.
Although Fig. 3 shows the single induction coil 90 at the rear embedded in the surface of edge guide member 80 ', the reality of this paper
The mode of applying includes that the rear wherein on the surface of edge guide member 80 is embedded with those of at least two induction coil (not shown).This
Class induction coil can be connected with induction heating system respectively, and the induction heating system operates or mutual one independently of each other
The operation of cause.For example, at least two induction coil can be independently controlled, for example, by being supplied to each line from power supply
The amount and frequency of the alternating current of circle are controlled and/or are controlled the flow velocity for the cooling fluid for flowing through each coil.
When the induction coil being separately controlled using at least two, such induction coil can be arranged so that for example, described
First of at least two induction coils being separately controlled is placed in first area, described at least two lines of induction being separately controlled
Second of circle is placed in second area.For example, such coil can be arranged so that the electric energy ratio for being supplied to the first induction coil
It is supplied to the electric energy height at least 10%, for example, at least 20% of the second induction coil, in another example at least 30%, in another example at least
40%, in another example at least 50%.For example, the electric energy for being supplied to the first induction coil can be 7.5-50kW, and it is supplied to second
The electric energy of induction coil can be 5-25kW.
For example, when the rear on the surface of edge guide member is embedded at least two induction coils, in certain embodiments
In, such induction coil can be embedded in the rear in the different surfaces region of edge guide member, to the first of edge guide member
The temperature characterisitic or curve different compared to the second surface region of edge guide member are provided in surface region.Such different temperature
Degree characteristic or curve can be realized for example, by supplying different amount at least two induction coil.For example, this
Class coil can be embedded in the rear of edge guide member so that first of at least two induction coils being separately controlled is embedded in edge
Second of the rear in the first surface region of guiding piece, at least two induction coils being separately controlled is embedded in edge guide member
The rear in second surface region, and wherein, it is supplied to electricity of the electric energy of the first induction coil than being supplied to the second induction coil
Energy height at least 10%, for example, it is high by least 20%, in another example height at least 30%, in another example height at least 40%, in another example high at least
50%.For example, the electric energy for being supplied to the first induction coil can be 7.5-50kW, and the electric energy for being supplied to the second induction coil can
To be 5-25kW.
For example, such coil can be embedded in the rear of edge guide member so that the maximum temperature of first surface is than the second table
At least 10 DEG C of the maximum temperature height in face, for example, at least 25 DEG C, in another example at least 50 DEG C, in another example at least 100 DEG C.Preferably at one
In embodiment, first surface is the lower part of edge guide member, and second surface is the upper part of edge guide member.
Although showing that only there are one edge guide members 80 ' to be assembled into forming wedge 62 ' in figure 3, it should be understood that also
The opposite end that the edge guide member (being similar to edge guide member 80 ') of second sensing heating can be assembled into forming wedge (does not show
Go out).
In addition, although Fig. 3 shows that single cooling fluid source, cooling fluid are supplied from the single cooling fluid source simultaneously
It gives and returns wherein (for example, cooler), to which cooling fluid continuously loops through in induction heating system 1000, but should manage
Solution, embodiments described herein may include it is following those：Wherein, cooling fluid is supplied from the source in addition to cooler 400, including
More than one source (for example, combination of cooler 400 and water room (house water)), and which part is (if not all
If) cooling fluid by input line 402 and output line 452 cycle after not return to cooler 400.
Although above described embodiment include edge guide member contact melten glass part directly by incude into
Those of row heating, embodiment as described herein further includes at least one other part of edge guide member (for example, those are not
The part contacted with melten glass) and/or close to edge guide member other at least one susceptible materials by incude directly plus
Those of heat, wherein heat is transferred to one from least one other edge guide member part and/or other susceptible materials
Or the part of multiple edge guide member contact melten glass.In this way, edge guide member contacts the part of melten glass still
So by sensing heating, still, be by it is a kind of it is more indirect than above described embodiment in a manner of.Induction shown in Fig. 3
Heating system can be used for the more indirect induction heating method.
Fig. 5 A and 5B schematically show the perspective view of the alternate embodiments of induction heating system component disclosed herein.
In the embodiment shown in Fig. 5 A and 5B, induction coil is slotted the replacement of conductive plate 92, is configured to conduction by AC power
The alternating current of supply.Cooling fluid can loop through cooling fluid pipeline, such as cylindrical cooling fluid line 94 (such as Fig. 5 A institutes
Show) or rectangle cooling fluid pipeline 96 (as shown in Figure 5 B).Fluting conductive plate 92 can be configured to embedded in contact melten glass
The rear on edge guide member surface, such as it is configured to the lower section on the edge guide member surface of abutting contact melten glass.At least one
A thermal insulation layer (not shown) can be located between edge guide member inner surface and fluting conductive plate.Fluting conductive plate 92 may also be configured to
It easily attaches or separates in induction heating system.Fluting conductive plate 92 may include at least one material selected from the group below：Copper,
Nickel, platinum, gold, silver and include at least one alloy as above.In specific preferred embodiment, fluting conductive plate 92 includes
Copper.Cooling fluid pipeline (for example, cylindrical cooling fluid line 94 or rectangle cooling fluid pipeline 96) may include at least one
Kind material selected from the group below：Copper, nickel, platinum, gold, silver and include at least one alloy as above.In specific preferred embodiment party
In formula, cooling fluid pipeline includes copper.
Fig. 6 A and 6B schematically show the sectional view and perspective view of another illustrative embodiments as described herein respectively.
In the embodiment shown in Fig. 6 A and 6B, edge guide member 80 ' includes backboard 180.In certain exemplary embodiments, the back of the body
Plate 180 can be by the identical material manufacture of remaining edge guide member 80 ', for example, at least a kind of material selected from the group below：Platinum,
Iridium, palladium, rhodium and include at least one alloy as above.In a specific preferred embodiment, backboard 180 includes platinum.The back of the body
Plate 180 has inner surface 182 and outer surface 184, and is preferably placed to so that melten glass unobvious flow through its outer surface.
By being placed in the induction coil 90 ' at the rear of at least part outer surface 184, backboard 180 is carried out via induction
It directly heats.Then heat is transferred to the surface for the edge guide member 80 ' being in direct contact with melten glass from backboard 180.
Induction coil 90 ' should be preferably embedded in the rear of the outer surface 184 of backboard 180, as far as possible close to outer surface
184.For example, in a preferred embodiment, induction coil 90 ' may be arranged so that part of the coil near outer surface 184
It it is, for example, less than 5 millimeters less than 10 millimeters, in another example being less than 2 millimeters.
In certain preferred embodiments, heat-insulating material 190 can be placed in outer surface 184 and the induction coil 90 ' of backboard 180
Between, so that the heat between backboard 180 and induction coil 90 ' is transmitted and is minimized.The example of suitable heat-insulating material includes
With those of following at least one：Aluminium oxide, aluminosilicate fibre, organic bond and inorganic bond, such as purchased from
The molding plate of KVS high-temperature vacuums and molded part of Rath companies.
Embodiments disclosed herein includes promoting backboard 180 and edge guide member 80 ' directly to connect with melten glass
Those of heat transmission between tactile one or more surfaces.For example, in some embodiments, the inner surface in backboard and side
Edge guiding piece contacts at least part of region between the inner surface of melten glass and can be filled with following thermal coefficient (κ)
Material, wherein at least 10W/ (mK) when κ is 25 DEG C, such as at least 20W/ (mK) at 25 DEG C, in another example at 25 DEG C at least
30W/ (mK), in another example at least 50W/ (mK) at 25 DEG C, in another example at least 100W/ (mK) at 25 DEG C, or even in another example
At least 200W/ (mK) at 25 DEG C, including 10-500W/ (mK) at 25 DEG C, 20-400W/ (mK) when further including 25 DEG C, also
Including 30-300W/ (mK) at 25 DEG C.
Fig. 7 schematically shows the perspective view of the edge guide member 80 ' with backboard 180, wherein the inner surface 182 of backboard
The area filling between the inner surface of melten glass is contacted with edge guide member 80 ' the Heat Conduction Material of 200 form of heat conduction pearl.It leads
The conductibility heat that the presence of hot pearl 200 significantly increases between backboard 180 and the surface of edge guide member contact melten glass passes
(and whole) heat is passed to transmit.
Heat conduction pearl 200 preferably includes the material with following thermal coefficient (κ), wherein at least 10W/ (m when κ is 25 DEG C
K), at least 20W/ (mK) such as at 25 DEG C, in another example at least 30W/ (mK) at 25 DEG C, in another example at least 50W/ at 25 DEG C
(mK), in another example at least 100W/ (mK) at 25 DEG C, or even in another example at least 200W/ (mK) at 25 DEG C, including at 25 DEG C
10-500W/ (mK), 20-400W/ (mK) when further including 25 DEG C, 30-300W/ (mK) when further including 25 DEG C.Heat conduction pearl can
To be selected from such as aluminium oxide and beryllium oxide.
Although Fig. 7 shows the Heat Conduction Material of pearl form, it should be understood that embodiments described herein may include other classes
The Heat Conduction Material of type or construction, such as heat conduction particle material, aspherical Heat Conduction Material and integrally-built solid conductive heat material
Material, such as it is configured to the heat-conducting block compatible with the inner surface of edge guide member 80 ', to be connect in backboard 180 and edge guide member
Adequately heat is transmitted and/or contacts melten glass in backboard 180 and edge guide member for offer between touching the surface of melten glass
It provides heat between surface to transmit, so that the temperature of the edge guide member of contact melten glass meets scheduled temperature gradient song
Line.
In mode is implemented as follows, the table for promoting backboard 180 and edge guide member contact melten glass can be further enhanced
Heat between face is transmitted, wherein the inner surface of inner surface 182 and edge guide member the contact melten glass of backboard 180 is at least
One is configured to have higher radiation coefficient (ε), such as, wherein 0.5≤ε≤1.0, such as 0.6≤ε≤1.0, in another example
0.7≤ε≤1, in another example 0.8≤ε≤1, in another example 0.9≤ε≤1.
For example, in some embodiments, inner surface and the inner surface of edge guide member contact melten glass of backboard
It is at least one to be coated with high radiation coefficient coating, such as the coating with radiation coefficient (ε), wherein 0.5≤ε≤1.0, such as
0.6≤ε≤1.0, in another example 0.7≤ε≤1.0, in another example 0.8≤ε≤1, in another example 0.9≤ε≤1.In certain preferred implementations
In mode, the inner surface of the inner surface and edge guide member contact melten glass of backboard is each coated with high radiation coefficient coating, example
Such as coating with radiation coefficient (ε), wherein 0.5≤ε≤1.0, such as 0.6≤ε≤1.0, in another example 0.7≤ε≤1.0, again
Such as 0.8≤ε≤1, in another example 0.9≤ε≤1.The example of high radiation coefficient material and coating includes for example, comprising selected from oxidation
At least one layer of coating and its multilayer of the material of aluminium, zirconium oxide and its mixture.High radiation coefficient coating can pass through plasma
Body sprays or flame spray technique is applied.
By using Heat Conduction Material and/or high radiation coefficient coating, in certain illustrative embodiments, can promote from
The heat that backboard contacts one or more surfaces of melten glass to edge guide member is transmitted, so that backboard and edge guide member
The temperature difference contacted between the surface of melten glass is less than 200 DEG C, is, for example, less than 150 DEG C, in another example it is less than 100 DEG C, including 50-
200 DEG C, further include 100-150 DEG C.For example, if the temperature of backboard is about 1300 DEG C, edge guide member contacts melten glass
The temperature on surface can be at least 1100 DEG C, for example, at least 1150 DEG C, in another example at least 1200 DEG C, in another example at least 1250
℃。
Relative to other methods (for example, using such as close to those of resistance heater of edge guide member, dependence pair
Heat is transferred to edge guide member by stream and radiation from resistance heater), embodiments described herein can provide so that edge draws
The advantage that the accumulation of devitrified glass on guiding element minimizes.Such method is not enough to enough heat transmissions to margin guide
Devitrification is minimized to necessary sufficient edge guide member in required physical clearance limitation by part to realize to be sufficient to make
Temperature.Such method can not achieve the accurate temperature control of edge guide member, and the essence may be implemented in embodiments described herein
True temperature control.In addition, the additional assemblies (for example, resistance heater etc.) used in such method can be occupied close to drawing
A large amount of key physical spaces, and can cause obviously departing from hope (and unnecessary) for close to edge guide member system
Make the heating of component and equipment.
It will be apparent to those skilled in the art that can be in the spirit and scope without departing from the theme for requiring patent right
In the case of, embodiment as described herein is carry out various modifications and changed.Therefore, this specification is intended to cover described herein
Various embodiments modifications and variations form, as long as these modifications and variations forms are fallen in appended claims and its equivalent
Within the scope of content.
Claims (27)
1. a kind of fusion drawing method of manufacture sheet glass, the described method comprises the following steps：
So that melten glass flows through the forming surface portion that a pair of forming wedge tilts down, the forming surface tilted down
It assembles to form root along downstream direction in part；
So that melten glass flows through the margin guide at least one intersection of the pair of forming surface portion tilted down
Part；
By being heated to edge guide member via induction, at least one that the edge guide member is contacted with melten glass
The minimum temperature on point surface is maintained above predetermined amount；And
The melten glass is drawn from the root of the forming wedge, to form sheet glass；
Wherein, the minimum temperature at least part surface that the edge guide member is contacted with melten glass is maintained above described
The liquidus temperature of melten glass；With
The difference of maximum temperature and minimum temperature on the surface of the edge guide member is 25-250 DEG C.
2. the method as described in claim 1, which is characterized in that contacted with melten glass at least one of the edge guide member
The minimum temperature on point surface is maintained above 1150 DEG C.
3. the method as described in claim 1, which is characterized in that the edge guide member is directly heated by induction,
And by induction coil embedded in the rear on the surface that the edge guide member is contacted with melten glass.
4. the method as described in claim 1, which is characterized in that the edge guide member includes backboard and induction coil, described
Backboard is directly heated by induction, and the induction coil is placed in the rear of the outer surface of the backboard.
5. method as claimed in claim 4, which is characterized in that the side of the inner surface of the backboard and contact melten glass
At least part area filling between the inner surface of edge guiding piece has the material with following thermal coefficient κ, wherein κ is 25
DEG C at least 10W/ (mK).
6. method as claimed in claim 4, which is characterized in that the side of the inner surface of the backboard and contact melten glass
At least one of the inner surface of edge guiding piece is coated with the coating with following radiation coefficient ε, wherein 0.5≤ε≤1.0.
7. the method as described in claim 1, which is characterized in that the edge guide member includes at least one material selected from the group below
Material：Platinum, iridium, palladium, rhodium and include at least one alloy as above.
8. the method as described in claim 1, which is characterized in that the edge guide member includes the alloy of platinum and tin.
9. the method as described in claim 1 further includes following steps：Using controller, the edge is drawn with providing
The management of the minimum temperature at least part surface that guiding element is contacted with melten glass controls.
10. the method as described in claim 1, which is characterized in that the edge guide member contacted with melten glass at least one
The minimum temperature of part surface can be changed at least 1000 DEG C of temperature at least 10 DEG C/min of rate.
11. the method as described in claim 1, which is characterized in that the induction coil being separately controlled by least two is to described
Edge guide member carries out sensing heating.
12. method as claimed in claim 11, which is characterized in that the first of described at least two induction coils being separately controlled
A to be placed in first area, second of described at least two induction coils being separately controlled is placed in second area, wherein supplies
The electric energy for being given to the first induction coil is at least higher by 10% than the electric energy for being supplied to the second induction coil.
13. the method as described in claim 1, which is characterized in that by conductive plate of slotting via induction to the margin guide
Part is directly heated, rear of the fluting conductive plate embedded in the surface that the edge guide member is contacted with melten glass.
14. a kind of equipment for pulling down sheet material glass comprising：
Wedge is shaped, there is a pair of forming surface portion tilted down, the forming surface portion tilted down is described
The bottom for shaping wedge is assembled, and forms root, and limit draw line so that melten glass is drawn along the draw line；And
With the edge guide member of at least one contact of the pair of forming surface portion tilted down；
The edge guide member includes the induction heating system component at the surface rear for being placed in the edge guide member, for passing through
The edge guide member is heated via induction, at least part table that the edge guide member is contacted with melten glass
The minimum temperature in face is maintained above predetermined amount；
Wherein, the minimum temperature at least part surface that the edge guide member is contacted with melten glass is maintained above described
The liquidus temperature of melten glass；With
The difference of maximum temperature and minimum temperature on the surface of the edge guide member is 25-250 DEG C.
15. equipment as claimed in claim 14, which is characterized in that the induction heating system component includes induction coil and opens
At least one of slot conductive plate.
16. equipment as claimed in claim 14, which is characterized in that the edge guide member contacted with melten glass at least one
The minimum temperature of part surface is maintained above 1150 DEG C.
17. equipment as claimed in claim 14, which is characterized in that the edge guide member directly add by induction
Heat, and by least one surface contacted with melten glass embedded in the edge guide member of induction coil and fluting conductive plate
Rear.
18. equipment as claimed in claim 14, which is characterized in that the edge guide member includes backboard and induction coil, institute
It states backboard to be directly heated by induction, the induction coil is placed in the rear of the outer surface of the backboard.
19. equipment as claimed in claim 18, which is characterized in that the inner surface of the backboard and the contact melten glass
At least part area filling between the inner surface of edge guide member has the material with following thermal coefficient κ, wherein κ exists
25 DEG C of at least 10W/ (mK).
20. equipment as claimed in claim 18, which is characterized in that the inner surface of the backboard and the contact melten glass
At least one of the inner surface of edge guide member is coated with the coating with following radiation coefficient ε, wherein 0.5≤ε≤1.0.
21. equipment as claimed in claim 14, which is characterized in that the edge guide member includes at least one selected from the group below
Material：Platinum, iridium, palladium, rhodium and include at least one alloy as above.
22. equipment as claimed in claim 14, which is characterized in that the edge guide member includes the alloy of platinum and tin.
23. equipment as claimed in claim 14, which is characterized in that the edge guide member contacted with melten glass at least one
The minimum temperature of part surface can be changed at least 1000 DEG C of temperature at least 10 DEG C/min of rate.
24. equipment as claimed in claim 14, which is characterized in that the edge guide member includes at least two being separately controlled
Induction coil.
25. equipment as claimed in claim 24, which is characterized in that the first of described at least two induction coils being separately controlled
A to be placed in first area, second of described at least two induction coils being separately controlled is placed in second area, wherein supplies
The electric energy for being given to the first induction coil is higher than the electric energy for being supplied to the second induction coil by least 10%.
26. equipment as claimed in claim 14, which is characterized in that extremely with offer Thermal protection, mechanical protection or corrosion protection
A kind of few material coats the induction coil, is isolated, encapsulation or is embedded.
27. equipment as claimed in claim 14, which is characterized in that the induction coil configuration at make coil extend through to
Few 3 regions, first is near the region at the center of the edge guide member, other two regions are located at central area
Either side, coil are configured to the line on the either side relative to central area near the part at the center of the edge guide member
Circle part protrudes forward.
Applications Claiming Priority (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US201261740541P | 2012-12-21 | 2012-12-21 | |
| US61/740,541 | 2012-12-21 | ||
| US201361880332P | 2013-09-20 | 2013-09-20 | |
| US61/880,332 | 2013-09-20 | ||
| PCT/US2013/074512 WO2014099560A1 (en) | 2012-12-21 | 2013-12-12 | Method and apparatus for minimizing devitrification on edge directors with induction heating |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105050969A CN105050969A (en) | 2015-11-11 |
| CN105050969B true CN105050969B (en) | 2018-11-09 |
Family
ID=50979041
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201380067490.0A Expired - Fee Related CN105050969B (en) | 2012-12-21 | 2013-12-12 | With sensing heating so that the method and apparatus that the devitrification on edge guide member minimizes |
Country Status (5)
| Country | Link |
|---|---|
| JP (1) | JP6364021B2 (en) |
| KR (1) | KR102166756B1 (en) |
| CN (1) | CN105050969B (en) |
| TW (1) | TWI627140B (en) |
| WO (1) | WO2014099560A1 (en) |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016069835A2 (en) | 2014-10-29 | 2016-05-06 | Corning Incorporated | Apparatus and method for shaping or forming heated glass sheets |
| EP3215469A1 (en) | 2014-11-07 | 2017-09-13 | Corning Incorporated | Induction heating method and apparatus for shaping thin glass |
| JP2017095320A (en) * | 2015-11-26 | 2017-06-01 | 日本電気硝子株式会社 | Method and apparatus for manufacturing glass molding |
| KR20180100018A (en) | 2017-02-28 | 2018-09-06 | 코닝 인코포레이티드 | Apparatus for cleaning edge director and method of cleaning edge director |
| JP7197503B2 (en) * | 2017-04-24 | 2022-12-27 | コーニング インコーポレイテッド | Fusion draw device and method for producing glass ribbon |
| CN110831905A (en) * | 2017-04-28 | 2020-02-21 | 康宁股份有限公司 | Edge guide comprising internal heating means |
| KR20190057793A (en) * | 2017-11-20 | 2019-05-29 | 코닝 인코포레이티드 | Glass manufacturing apparatus and methods of fabricating |
| CN114514207A (en) * | 2019-07-22 | 2022-05-17 | 康宁公司 | Laser devitrified article removal system and method |
| JP7488510B2 (en) * | 2020-06-18 | 2024-05-22 | 日本電気硝子株式会社 | Glass article manufacturing apparatus and manufacturing method thereof |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102190425A (en) * | 2010-02-26 | 2011-09-21 | 康宁股份有限公司 | Methods and apparatus for reducing heat loss from an edge director |
| CN102762507A (en) * | 2010-01-19 | 2012-10-31 | 康宁股份有限公司 | Apparatus and methods for fusion drawing a glass ribbon |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3016732B2 (en) * | 1996-04-24 | 2000-03-06 | ハイデック株式会社 | Heat radiation heating cooker by electromagnetic induction heating |
| US8042361B2 (en) * | 2004-07-20 | 2011-10-25 | Corning Incorporated | Overflow downdraw glass forming method and apparatus |
| KR101334019B1 (en) * | 2005-12-15 | 2013-12-02 | 브루스 테크놀로지 엘엘씨 | Overflow downdraw glass forming method and apparatus |
| JP5551190B2 (en) * | 2009-02-26 | 2014-07-16 | コーニング インコーポレイテッド | Glass forming apparatus and method with edge inductor |
| ATE551304T1 (en) * | 2009-05-13 | 2012-04-15 | Corning Inc | METHOD AND EQUIPMENT FOR SHAPING ENDLESS GLASS PANELS |
| US20110100057A1 (en) * | 2009-10-29 | 2011-05-05 | Gaylo Keith R | Method and apparatus for reducing heat loss from edge directors in a glass making process |
-
2013
- 2013-12-12 KR KR1020157019244A patent/KR102166756B1/en active IP Right Grant
- 2013-12-12 CN CN201380067490.0A patent/CN105050969B/en not_active Expired - Fee Related
- 2013-12-12 WO PCT/US2013/074512 patent/WO2014099560A1/en active Application Filing
- 2013-12-12 JP JP2015549485A patent/JP6364021B2/en not_active Expired - Fee Related
- 2013-12-17 TW TW102146686A patent/TWI627140B/en not_active IP Right Cessation
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102762507A (en) * | 2010-01-19 | 2012-10-31 | 康宁股份有限公司 | Apparatus and methods for fusion drawing a glass ribbon |
| CN102190425A (en) * | 2010-02-26 | 2011-09-21 | 康宁股份有限公司 | Methods and apparatus for reducing heat loss from an edge director |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105050969A (en) | 2015-11-11 |
| KR20150097697A (en) | 2015-08-26 |
| JP2016505499A (en) | 2016-02-25 |
| TWI627140B (en) | 2018-06-21 |
| TW201437154A (en) | 2014-10-01 |
| KR102166756B1 (en) | 2020-10-16 |
| JP6364021B2 (en) | 2018-07-25 |
| WO2014099560A1 (en) | 2014-06-26 |
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