CN105967502A - Glass manufacturing device and glass manufacturing method - Google Patents
Glass manufacturing device and glass manufacturing method Download PDFInfo
- Publication number
- CN105967502A CN105967502A CN201610135880.2A CN201610135880A CN105967502A CN 105967502 A CN105967502 A CN 105967502A CN 201610135880 A CN201610135880 A CN 201610135880A CN 105967502 A CN105967502 A CN 105967502A
- Authority
- CN
- China
- Prior art keywords
- cooling
- glass
- housing
- manufacturing apparatus
- cooling fluid
- 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
Classifications
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B18/00—Shaping glass in contact with the surface of a liquid
- C03B18/02—Forming sheets
Abstract
The invention provides a glass manufacturing device and method capable of carrying out temperature management on the bottom face of a housing with high precision without being affected by external gas temperature; the glass manufacture device comprises a cooling unit used for cooling the housing serving as the contour of the fused glass forming device; the cooling unit comprises the following elements: a cooling chamber serving as a depressure space outside the housing; a jetting unit used for jetting cooling fluid on the periphery of the housing of the cooling chamber; a suction unit used for sucking the cooling chamber, and using the cooling fluid evaporation latent heat so as to cool the housing gas.
Description
Technical field
The present invention relates to glass manufacturing apparatus and glass-making processes.
Background technology
As glass manufacturing apparatus, such as based on float forming method ribbon glass manufactures device tool
There is the bath (float bath) housing motlten metal, the surface of the motlten metal in bath connects
Supply melten glass continuously, the surface of motlten metal moltens glass into ribbon glass.
Bath includes metal housing and covers multiple bricks of inner side of this housing.Motlten metal
Enter brick seam each other.The lower surface of housing is in order to prevent the reaction with motlten metal
And it is cooled to the temperature of below the freezing point of motlten metal solidification.Therefore, at brick each other
Seam forms the boundary of motlten metal and solid metal.It is known that the temperature of the lower surface when housing
During degree variation, above-mentioned boundary moves up and down, and produces bubble in motlten metal sometimes,
Due to produce bubble floating and band (ribbon) shape glass lower surface formed defect (BOS
(Bottom Open Seed)).Therefore, in order to ensure the quality of ribbon glass, housing is made
The situation of the temperature stabilization of lower surface is most important.
In view of above-mentioned point, disclose following technology: by based on the extraneous gas temperature being measured to
The temperature of degree and the cooling fluid such as the gas after adjusting or liquid spray towards the lower surface of housing,
(for example, referring to patent documentation within controlling to be 4 DEG C by the temperature change amplitude of the lower surface of housing
1)。
Moreover it is known that there is following technology: as the chiller that cooling object is cooled down,
Reduce pressure, thus in utilizing the cooling chamber of the outer peripheral face attracting unit to covering cooling object
Make to utilize injection nozzle to carry out gasification cooling (example to the cooling fluid evaporator of cooling object winding-up
As, with reference to patent documentation 2).
[citation]
[patent documentation]
[patent documentation 1] International Publication 2012/060197
[patent documentation 2] Japanese Unexamined Patent Publication 2008-196814 publication
[inventing problem to be solved]
But, the technology of patent documentation 1 controls with the temperature not producing the limit of BOS shortcoming
The temperature change of the lower surface of housing.Temperature is detected by temperature measuring device, but interference factor is many
And produce detection delay etc. sometimes.Therefore, in order to be reliably prevented the BOS in float forming method
Shortcoming forms the ribbon glass of high-quality, it is desirable to the temperature treatment in narrower range, but
The technology of patent documentation 1 cannot be referred to as fully.
As high-precision temperature treatment difficulty will be because of, thus it is speculated that be because, due to the shell of cooling
The lower surface of body is for exposing state, and the extraneous gas temperature by changing is affected the most significantly.
About this point, patent documentation 2 utilizes cooling chamber to be covered by cooling object and make outside
The impact of gas temperature is Min., and, carry out for decompression state in making cooling chamber
Gasification cooling.But, do not record and the technology of patent documentation 2 is applied to glass manufacturing apparatus
Concrete structure, method.
Summary of the invention
The present invention makes in view of above-mentioned problem, it is provided that a kind of BOS suppressed in float forming method
The shortcoming that shortcoming etc. are caused by the variations in temperature as the housing of profile of the forming device of glass,
Can not be affected by extraneous gas temperature and carry out the glass manufacture of temperature treatment accurately and fill
Put.
[for solving the scheme of problem]
In order to solve above-mentioned problem, according to a scheme of the present invention,
A kind of glass manufacturing apparatus is provided, have the forming device to melten glass as profile
Housing carry out the cooling unit that cools down, it is characterised in that
Described cooling unit has: cooling chamber, is arranged on described shell as decompression confined space
The outside of body；Injection unit, the outer peripheral face injection cooling stream of the described housing in this cooling chamber
Body；And attraction unit, attract in this cooling chamber, the cooling stream that jetted described in utilization
The evaporation latent heat of body and make the outer peripheral face gasification cooling of described housing.
[invention effect]
A scheme according to the present invention, it is provided that a kind of can suppress by the work of the forming device of glass
The shortcoming produced for the variations in temperature of the housing of profile, is not affected and energy by extraneous gas temperature
Enough glass forming apparatus carrying out temperature treatment with high accuracy.
Accompanying drawing explanation
Fig. 1 is to represent the sectional view that the ribbon glass of one embodiment of the present invention manufactures device,
It it is the sectional view of the I-I line along Fig. 2.
Fig. 2 is the sectional view of the II-II line along Fig. 1.
Fig. 3 is the composition ribbon glass manufacture dress schematically showing one embodiment of the present invention
The injection unit put and the explanatory diagram of the functional structure attracting unit.
Fig. 4 is the temperature change of the lower surface of the metal shell representing embodiment 1 and comparative example 1
Figure.
[label declaration]
10 ribbon glass manufacture device
11 baths
12 metal shells
13 bricks
14 supply units
20 ribs
30 chillers
4 cooling chambers
5 injection units
51 supervisors
52 branched pipes
53 nozzles
53A liquid ejection portion
53B gas ejection section
55 air supply valves
56 gas exhaust valves
6 attract unit
61 suction catheters
62 ejectors
63 bubbler portions
64 tanks
65 pumps
G melten glass
M motlten metal
Detailed description of the invention
Hereinafter, referring to the drawings, the mode for implementing the present invention is described.In the drawings, right
In identical or corresponding structure, mark identical or corresponding label and omit the description.In this explanation
In book, represent numerical range "～" refer to comprise the scope of numerical value before and after it.And, this
Invention glass manufacturing apparatus stamped device, float glass process, drop-down (fusing) method etc. other
Ribbon glass manufacture method in can apply, but illustrate as a example by being exemplified below float glass process.
Therefore, below, glass manufacturing apparatus is labeled as ribbon glass and manufactures device.
Fig. 1 is to represent the sectional view that the ribbon glass of one embodiment of the present invention manufactures device,
It it is the sectional view of the I-I line along Fig. 2.Fig. 2 is the sectional view of the II-II line along Fig. 1.
Ribbon glass manufactures the device 10 motlten metal M in bath 11 and continuously feeds melted
Glass G, is configured to ribbon glass by melten glass G on the surface of motlten metal M.Banding
Glass flows while gradually solidifying on the liquid level of motlten metal M.Ribbon glass is at bath
The downstream area of 11, by from motlten metal M pull-up, carries towards leer.Ribbon glass is two
There is between side edge part par.The edge, both sides of ribbon glass is thicker than the par of ribbon glass,
Therefore cut after slow cooling.Thus, the float glass of substantially uniform thickness of slab is obtained.
Ribbon glass manufactures device 10 and has bath 11, supply unit 14, rib 20, chiller
30 (being equivalent to cooling unit) etc..
As it is shown in figure 1, bath 11 houses motlten metal M.Motlten metal M can be general
The motlten metal of property, such as, can be molten tin or molten tin alloy.Bath 11 has metal-back
Body 12 and multiple bricks 13 that the inner side of metal shell 12 is covered.Multiple bricks 13 are assembled into case
Shape, houses motlten metal M in inside.In view of thermal expansion etc. and multiple brick 13 seam each other
Portion 130 is provided with small gap.
The lower surface of metal shell 12 includes lower surface and the assembly of multiple brick 13 of bath 11
Lower surface.The length direction of bath 11 is flat with the flow direction (arrow X) of melten glass G
OK, the width of bath 11 is vertical with the flow direction of melten glass G.
And, separate in the lower surface of metal shell 12 and certain be positioned apart from multiple rib 20.
Rib 20 separates certain interval relative to flow direction (arrow X) and configures multiple, and phase
For and the orthogonal direction of flow direction be also separated by certain interval and configure multiple.
Supply unit 14 is arranged on the end of the upstream side of bath 11, the melted gold in bath 11
Belong to and continuously feed melten glass G on the surface of M.
Chiller 30 is the device that the metal shell 12 to the profile becoming bath cools down,
In order to prevent the generation of BOS shortcoming, the lower surface of metal shell 12 is entered in the present embodiment
Row cooling.
Chiller 30 has: the cooling chamber (chamber) 4 arranged in the lower section of metal shell 12；
In being arranged on this cooling chamber 4 and to the injection list of the lower surface of metal shell 12 injection cooling fluid
Unit 5；Attract in this cooling chamber 4, and utilize the evaporation latent heat of this cooling fluid to make gold
Belong to the attraction unit 6 of the lower surface gasification cooling of housing 12.
Cooling fluid can be any one in the liquid such as gas, water such as air.Present embodiment
In cooling fluid preferably cool down water.It should be noted that in the present embodiment, cooling
Fluid (water) is as long as manage into the fluid of the temperature lower than cooling object, it is not necessary to be cold
But the fluid of the temperature lower than extraneous gas temperature or room temperature is become.Such as, if cooling water, then
Can also be that heating temperature treatment are to the hot water near target temperature.
Cooling chamber 4 is arranged in the way of covering the lower surface of metal shell 12, airtight as decompression
Space.As it is shown in figure 1, cooling chamber 4 can be formed as 1 interval carries out temperature treatment, also
Multiple district can be divided into relative to the length direction (left and right directions in Fig. 1) of bath 11
Between and carry out suitable temperature treatment according to each interval.
Such as it is shown in figure 1, injection unit 5 has supervisor 51, branched pipe 52, nozzle 53
Deng, pump or tank the cooling water supplied is jetted to the lower surface of metal shell 12.
The flow direction of supervisor 51 and melten glass G, i.e. length direction (Fig. 1 of bath 11
In left and right directions, paper vertical direction in Fig. 2) parallel.Supervisor 51 has cold in inside
But the stream of fluid.When observing from the top of bath 11, supervisor 51 can upper from bath 11
Trip portion extends to the downstream portion of bath 11.
It should be noted that when observing above bath 11, the supervisor of present embodiment
51 extend to the downstream portion of bath 11 from the upstream portion of bath 11, but the length of supervisor 51 can
With varied.Such as, when observing above bath 11, supervisor 51 can also be from bath
The upstream portion of groove 11 extends to the middle reaches portion of bath 11.
Branched pipe 52 is from being responsible for 51 branches, and has the stream of cooling fluid in inside.Branch
Pipe 52 can highlight upward from supervisor 51.
Branched pipe 52 arranges multiple along the length direction of supervisor 51 at spaced intervals.From bath
When the top of groove 11 is observed, multiple branched pipes 52 can be from the upstream portion of bath 11 to bath 11
Downstream portion configure at spaced intervals.
It should be noted that when observing above bath 11, multiple points of present embodiment
Arm 52 configures at spaced intervals from the downstream portion of the upstream portion of bath 11 to bath 11, but
The configuration of branched pipe 52 can be varied.Such as, when observing above bath 11,
Branched pipe 52 configures with can also being biased against the upstream portion of bath 11.
The spacing of branched pipe 52 can be any one equidistantly, in unequal-interval.Such as, on
The spacing of the branched pipe 52 of trip side can be narrower than the spacing of the branched pipe 52 in downstream.Thus,
Intensively the lower wall portion of the upstream region of bath 11 can be cooled down.The upstream of bath 11
The temperature of the motlten metal in region is high, big with the temperature difference of the freezing point of motlten metal solidification.
Nozzle 53 is connected to branched pipe 52, to the lower surface of metal shell 12 winding-up cooling fluid.
Nozzle 53 is along length direction (left and right directions in Fig. 1, the paper in Fig. 2 of bath 11
Vertical direction), width (left and right directions in Fig. 2, the paper vertical direction in Fig. 1)
Arrange multiple at spaced intervals.Therefore, do not omit whole to the lower surface of metal shell 12
Individual region winding-up cooling fluid.
The most multiple nozzles 53 are configured to as illustrated to being arranged on metal shell 12 times
Jet cooling fluid fifty-fifty in the surface of the rib 20 of end face.Additionally, multiple nozzles 53 be to
Position, the underface P of the seam 130 of the brick 13 in the lower surface of metal shell 12 also can spray
Blow the configuration of cooling fluid.
It is known that produce at the root of aforesaid rib 20 or position, the underface P of seam 130
From the desuperheating path (so-called hot path) that the desuperheating of bath 11 is more than other position, therefore temperature
Degree easily raises.
The multiple nozzles 53 constituting injection unit 5 of present embodiment are characterised by, especially
Also spray cooling fluid at the position that temperature easily raises, it is possible to metal shell 12 times
The whole region of end face cools down.
For in passing, in the present embodiment, connect multiple nozzle 53 at each branched pipe 52,
But 1 nozzle 53 can also be connected at each branched pipe 52.And, the linking number of nozzle 53
Can be different according to each branched pipe 52.
Unit 6 is attracted to have the pressure state being formed as regulation to attracting in cooling chamber 4
Function.That is, cooling stream is made with the target temperature of the lower surface (cooling surface) of metal shell 12
Evacuator body and reduce pressure.Then, more than target temperature is become when the lower surface of metal shell 12
Time, jet in the cooling fluid evaporator of this lower surface, utilize this evaporation latent heat can gasify cooling.
For in passing, unit 6 is attracted to have the function extracted out of releasing discharged by cooling fluid the most in the lump.
It follows that based on Fig. 3, illustrate to attract the schematic configuration of unit 6.Fig. 3 is schematic
Ground represents the explanatory diagram of the functional structure attracting unit 6 and injection unit 5.
Unit 6 is attracted to have: the carrying out of the lower surface being arranged on cooling chamber 4 is released and extract out and subtract
The suction catheter 61 of pressure；The ejector 62 being connected with this suction catheter 61；Via bubbler portion 63
The tank 64 being connected with ejector 62；And the pump 65 being connected with tank 64.Pump 65 and ejector 62
Connect with injection unit 5 (supervisor 51).
In the case of the lower surface of the metal shell 12 in cooling chamber 4 is cooled down, first,
Pump 65 is driven and a part for the cooling fluid in tank 64 is supplied to injection unit 5,
Utilize nozzle 53 to this cooling fluid of the whole area spray of the lower surface of metal shell 12.
It is also supplied with cooling down fluid to ejector 62 and utilizes ejector 62 to produce captivation, thus
The pressure of regulation is become in making cooling chamber 4.Then, cooling fluid captures metal shell 12 times
The heat of end face and evaporate, temperature can be risen position by its evaporation latent heat and gasify cold
But.Gas after capturing the heat of the lower surface of metal shell 12 in cooling chamber 4 and evaporating gasification
The remainder changing steam and cooling fluid attracts from the injected device of suction catheter 61 62 and arrives tank
64。
The pressure of aforesaid regulation is atmospheric pressure pressure below, refers to metal shell 12 times
The target temperature of end face (cooling surface) makes the pressure of cooling fluid evaporator.The mesh of present embodiment
Within mark temperature is set to 70 DEG C～98 DEG C.And, the cooling of nozzle 53 injection of injection unit 5
The temperature of fluid is roughly the same with target temperature.Therefore, the temperature in tank 64 be also adjusted to into
Target temperature.
And, the temperature change amplitude of the lower surface of metal shell 12 now is not by extraneous gas
The impact of the external environment conditions such as temperature and situation about managing can suppress the product of the bubble in motlten metal
Raw, the most preferably.The amplitude of fluctuation of present embodiment relative to target temperature be preferably ± 1 DEG C with
Under, more preferably less than ± 0.5 DEG C.
Therefore, in the lower surface of metal shell 12, for rising to the temperature of more than target temperature
Rising position, the cooling fluid of winding-up evaporates immediately, and gasification based on evaporation latent heat cooling continues
To becoming below target temperature.Therefore, even if rise the rib concentrated especially in the presence of temperature
20 or position, the underface P of seam 130, it is also possible to by the homogeneous temperature ground in cooling chamber 4
Remain target temperature.
For in passing, if using the ribbon glass of present embodiment to manufacture device 10, then can be by
Within the temperature change amplitude of the target temperature of the lower surface of metal shell 12 controls to be ± 1 DEG C.
This is compared with the past, and temperature change amplitude reduces tremendously, it is possible to realize high-precision temperature
Management.
As it is shown on figure 3, the nozzle 53 of the injection unit 5 of present embodiment can also have: spray
Penetrate the liquid ejection portion 53A as the liquid cooling down fluid；And injection is as the gas of cooling fluid
Gas ejection section 53B of body.Liquid ejection portion 53A is to allow hand over gas ejection section 53B
Structure.In illustrated example, liquid ejection portion 53A and gas ejection section 53B are set to bimetallic tube
Structure, gas ejection section 53B becomes outer tube.Gas ejection section 53B is via air supply valve 55
And be connected with gas supply fan (not shown) making gas flow in cooling chamber 4.
The injection unit 5 of above-mentioned structure is assumed to there occurs liquid ejection portion 53A blocking, pump 65
In the case of the faults such as stopping, utilizing gas ejection section 53B by gas to cooling by switching to
In room 4, supply, it is possible to standby functions when playing urgent.As standby merit time urgent
One ring of energy, injection unit 5 can also arrange air supply valve 55 in the lower surface of cooling chamber 4
And gas exhaust valve 56, when urgent in cooling chamber 4 supply gas discharge gas.
It should be noted that in the present embodiment, it is shown that to the lower surface of metal shell 12
Whole region do not jet with omitting cooling fluid example, but the cooling unit of the present invention
Configuration be not limited to this.As long as the whole region of the outer peripheral face of metal shell 12 can be entered
Row cools down, and does not utilizes injection unit 5 directly to spray to the outer peripheral face of this housing 12 even if existing
Blow the region of cooling fluid, as long as by the such as conduction of heat beyond the directly winding-up of cooling fluid
Deng and the whole region of the outer peripheral face of housing 12 can be cooled down.And, although show
Generally uniform to whole region and do not spray with omitting cooling fluid example, but can also
Aforesaid desuperheating path emphasis is carried out cooling waits and strong and weak to the spray distribution of cooling fluid.
And, in the present embodiment, cooling chamber 4 is to cover the lower surface of metal shell 12
The mode in whole region is arranged but it also may be one of the lower surface covering metal shell 12
The mode in the region divided is arranged.In this case, towards the metal shell being not provided with cooling chamber 4
Lower surface injection gas or liquid etc. cooling fluid.
<glass-making processes>
It follows that referring again to Fig. 1 and Fig. 2, illustrate to employ the ribbon glass of said structure
Manufacture the float glass making process of device 10.
Float glass making process has on the surface of the motlten metal M in bath 11 continuous
Ground supply melten glass G, is configured to the banding of tabular on motlten metal M by melten glass G
The forming process of glass.Ribbon glass is while flow the most gradually on the liquid level of motlten metal M
Solidification.Ribbon glass at the downstream area of bath 11 by from motlten metal M pull-up, towards slow cooling
Stove is carried.The edge, both sides of ribbon glass is thicker than the par inside it, therefore quilt after slow cooling
Excision.Thus, the float glass of substantially uniform thickness of slab can be obtained.
According to present embodiment, forming process is implemented the lower end effectively to metal shell 12
Face carries out the operation cooled down.
That is, in the cooling chamber 4 being arranged at the decompression confined space of lower section of metal shell 12,
Implement following operation: the lower surface of the metal shell 12 utilizing nozzle 53 in cooling chamber 4
The jeting process of whole area spray cooling fluid；And utilize attraction unit 6 in cooling chamber 4
Attract, utilize the evaporation latent heat of cooling fluid to make the temperature of metal shell 12 rise position gas
Change the attraction operation of cooling.
Furthermore, injection unit 5 sprays the target temperature of the cooling surface becoming metal shell 12
Cooling fluid, attract unit 6 to make cooling fluid evaporator with described target temperature and to cooling chamber 4
Inside reduce pressure.
Therefore, in the lower surface of metal shell 12, for rising to the temperature of more than target temperature
Rising position, the cooling fluid of winding-up evaporates immediately, and gasification based on evaporation latent heat cooling continues
To becoming below target temperature.Therefore, even if rise the rib concentrated especially in the presence of temperature
20 or position, the underface P of seam 130, it is also possible to by the homogeneous temperature ground in cooling chamber 4
Remain target temperature.
The thickness of slab of manufactured float glass is such as below 1.0mm, preferably below 0.7mm,
More preferably below 0.5mm.That is, the thickness of the par of ribbon glass be such as 1.0mm with
Under, preferably below 0.7mm, more preferably below 0.5mm.
Manufactured float glass uses the glass substrate as such as display, display to use
Cover cap glass, glass pane.
In the case of manufactured float glass is normally used as the glass substrate of display, can
To be alkali-free glass.Alkali-free glass is to contain substantially no Na2O、K2O、Li2The alkali metal such as O
The glass of oxide.The total amount of the amount of the alkali metal oxide of alkali-free glass can be 0.1 matter
Amount below %.
Alkali-free glass is such as in terms of quality % of oxide benchmark shows, containing SiO2:
50%～73%, Al2O3: 10.5%～24%, B2O3: 0%～12%, MgO:0%～10%,
CaO:0%～14.5%, SrO:0%～24%, BaO:0%～13.5%, MgO+CaO+SrO+BaO:
8%～29.5%, ZrO2: 0%～5%.
In the case of alkali-free glass realizes high strain point and high melting at the same time, preferably with
The quality % display meter of oxide benchmark, containing SiO2: 58%～66%, Al2O3: 15%～22%,
B2O3: 5%～12%, MgO:0%～8%, CaO:0%～9%, SrO:3%～12.5%,
BaO:0%～2%, MgO+CaO+SrO+BaO:9%～18%.
Alkali-free glass is in the case of wanting to obtain extra high strain point, preferably with oxide-base
Accurate quality % display meter, containing SiO2: 54%～73%, Al2O3: 10.5%～22.5%, B2O3:
0%～5.5%, MgO:0%～10%, CaO:0%～9%, SrO:0%～16%, BaO:0%～2.5%,
MgO+CaO+SrO+BaO:8%～26%.
In the case of manufactured float glass is normally used as the cover cap glass of display, can
To be chemical enhanced glass.Chemical enhanced glass has been carried out the glass after chemical intensification treatment
Glass is normally used as cover cap glass.Chemical intensification treatment by the alkali that will comprise at glass surface from
The ion (such as Li ion or Na ion) of the small ionic radii in son is replaced into big ion half
The ion (such as K ion) in footpath, is consequently formed the compression away from the degree of depth that glass surface is regulation
Stressor layers.
Chemical enhanced glass is such as in terms of a mole % for oxide benchmark shows, containing SiO2:
62%～68%, Al2O3: 6%～12%, MgO:7%～13%, Na2O:9%～17%, K2O:
0%～7%, from Na2O and K2The total of the amount of O deducts Al2O3Difference obtained by amount
Less than 10%, containing ZrO2In the case of, its amount is less than 0.8%.
Chemical enhanced glass additionally is in terms of a mole % for oxide benchmark shows, containing SiO2:
65%～85%, Al2O3: 3%～15%, Na2O:5%～15%, K2O:0%～less than 2%,
MgO:0%～15%, ZrO2: 0%～1%, SiO2And Al2O3The total of amount
SiO2+Al2O3It is less than 88%.
In the case of manufactured float glass is normally used as glass pane, it can be soda-lime glass.
Soda-lime glass is such as in terms of quality % of oxide benchmark shows, containing SiO2: 65%～75%,
Al2O3: 0%～3%, CaO:5%～15%, MgO:0%～15%, Na2O:10%～20%,
K2O:0%～3%, Li2O:0%～5%, Fe2O3: 0%～3%, TiO2: 0%～5%, CeO2:
0%～3%, BaO:0%～5%, SrO:0%～5%, B2O3: 0%～5%, ZnO:0%～5%,
ZrO2: 0%～5%, SnO2: 0%～3%, SO3: 0%～0.5%.
[embodiment]
In embodiment 1, use the ribbon glass shown in Fig. 1～Fig. 3 to manufacture device 10 to manufacture
The float glass of alkali-free glass.As cooling fluid, employ liquid.By metal shell 12
The target temperature of lower surface be set as 95.5 DEG C.Being accompanied by this, nozzle 53 is by the liquid of 95.5 DEG C
Body, to the whole area spray of the lower surface of metal shell 12, attracts unit 6 to utilize ejector 62
Reduced pressure in cooling chamber 4 with pump 65, so that liquid evaporates at 95.5 DEG C.
On the other hand, in comparative example 1, the target temperature of the lower surface of metal shell 12 is set
It is set to 87 DEG C, utilizes multiple supply fan that the lower surface of metal shell 12 is cooled down.Supply
Configure with the state exposed at the lower position of metal shell 12 to fan.Further, in embodiment
1 and comparative example 1 in, proceed to arrange in the lower surface of metal shell 12 multiple temperature and survey
Determine the measurement of device, determine temperature change amplitude.
Fig. 4 is that the temperature of the lower surface of the metal shell 12 representing embodiment 1 and comparative example 1 becomes
The figure of dynamic amplitude.In the diagram, transverse axis is (day), and the longitudinal axis is mesh based on temperature measuring device
Mark temperature and mensuration temperature difference T (DEG C).
Pay close attention to embodiment 1 to understand, the temperature change amplitude of the lower surface of the metal shell 12 of 6 days
It is to carry out temperature treatment under so the most very high accuracy within ± 1 DEG C.This expression is little affected by outside
The impact of the interference key element such as gas temperature.
Understand about comparative example 1, the temperature change amplitude of the lower surface of the metal shell 12 of 6 days
For ± 3.0 DEG C～4.0 DEG C, affected by the variation of extraneous gas temperature.
From the above result that understand, embodiment 1 utilizes the cooling chamber 4 as decompression confined space
Cover the lower surface of metal shell 12, utilize injection unit 5 He being arranged in cooling chamber 4
Unit 6 is attracted to make cooling fluid carry out gasification cooling with target temperature evaporation, therefore, it is possible to real
Temperature change amplitude ± 1.0 DEG C of the lower surface of existing metal shell 12.
Therefore, the present invention ribbon glass manufacture device make metal shell lower surface temperature not
Affected by the variation of extraneous gas temperature and carried out temperature pipe with less temperature change amplitude
Reason, it is possible to be reliably prevented BOS shortcoming and form the ribbon glass of high-quality.
This concludes the description of ribbon glass and manufacture device and the embodiment of ribbon glass manufacture method
Deng, but the present invention is not defined to above-mentioned embodiment etc., in the basis that claims are recorded
In the range of the purport of invention, it is possible to carry out various deformation, improvement.
Here, show at the metal shell manufacturing device that ribbon glass is flatly carried
Lower surface possesses the example of cooling unit, but as long as needs high-precision in glass manufacturing apparatus
The cooling of the profile of the operation of the temperature treatment of degree, it becomes possible to the application present invention.Therefore, it is possible to
Be used in stamping, by ribbon glass vertically or incline direction carrying manufacture dress
Put.In this case, cooling unit can also be arranged on beyond the lower surface of housing.
Such as, the present invention can apply in the forming process of other ribbon glass well.Make
For the example of the forming process of ribbon glass, such as glass tube down-drawing, fusion method, slotted eye can be enumerated dirty
Method, roller forming process, rolling process or pull-up method etc..
Fusion method is also referred to as overflow downdraw, makes the melten glass overflowed from chute both sides to the left and right
Left and right sides along chute flow down, and it is ribbon glass that the lower end at chute merges shape.
The present invention can use in working chamber of fusion method etc. well.
Claims (9)
1. a glass manufacturing apparatus, have the forming device to melten glass as profile
Housing carries out the cooling unit cooled down, and described glass manufacturing apparatus is characterised by,
Described cooling unit has:
Cooling chamber, is arranged on the outside of described housing as decompression confined space；
Injection unit, the outer peripheral face injection cooling fluid of the described housing in this cooling chamber；And
Attract unit, attract in this cooling chamber, the cooling fluid that jetted described in utilization
Evaporation latent heat and make described housing outer peripheral face gasification cooling.
Glass manufacturing apparatus the most according to claim 1, wherein,
In described injection unit, with can be to the outer peripheral face of described housing in described cooling chamber
The mode that whole region carries out cooling down configures the injection unit of multiple described cooling fluid.
Glass manufacturing apparatus the most according to claim 1 and 2, wherein,
Described housing has the rib highlighted from described outer peripheral face,
Multiple described injection units spray described cooling fluid to the surface of described rib.
Glass manufacturing apparatus the most according to claim 1 and 2, wherein,
Described forming device is the device forming ribbon glass, possesses for shaping described
The bath of ribbon glass,
Described cooling chamber is arranged in the way of covering the lower surface of described housing.
Glass manufacturing apparatus the most according to claim 4, wherein,
Multiple bricks are configured side by side in described housing,
Multiple described injection units prolong to the seam of the lower surface of described housing and multiple described brick
Described cooling fluid is sprayed at position on long line.
Glass manufacturing apparatus the most according to claim 1 and 2, wherein,
Described injection unit and described attraction unit are so that the temperature of cooling surface of described housing becomes
Mode within 70 DEG C～98 DEG C is controlled.
Glass manufacturing apparatus the most according to claim 1 and 2, wherein,
Described injection unit and described attraction unit are so that the temperature change of cooling surface of described housing
Amplitude becomes ± 1.0 DEG C within mode be controlled.
Glass manufacturing apparatus the most according to claim 1 and 2, wherein,
Described injection unit has:
Liquid ejection portion, sprays the liquid as described cooling fluid；And
Gas ejection section, sprays the gas as described cooling fluid,
Described liquid ejection portion and described gas ejection section are configured to switching.
9. a glass-making processes, uses the glass system according to any one of claim 1～8
Manufacturing apparatus.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2015-049852 | 2015-03-12 | ||
| JP2015049852A JP2016169119A (en) | 2015-03-12 | 2015-03-12 | Glass manufacturing apparatus, and glass manufacturing method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105967502A true CN105967502A (en) | 2016-09-28 |
| CN105967502B CN105967502B (en) | 2020-12-04 |
Family
ID=56983085
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610135880.2A Active CN105967502B (en) | 2015-03-12 | 2016-03-10 | Glass manufacturing device and glass manufacturing method |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JP2016169119A (en) |
| KR (1) | KR20160110142A (en) |
| CN (1) | CN105967502B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0487737U (en) * | 1990-12-14 | 1992-07-30 | ||
| CN2651244Y (en) * | 2003-11-06 | 2004-10-27 | 中国凯盛国际工程公司 | Steel structure of molten tin bath bottom |
| JP2008196814A (en) * | 2007-02-15 | 2008-08-28 | Tlv Co Ltd | Evaporative cooling device |
| CN101823835A (en) * | 2009-03-03 | 2010-09-08 | 株式会社Lg化学 | Float bath system for manufacturing glass & cooling method of the same |
| CN103209935A (en) * | 2010-11-04 | 2013-07-17 | 旭硝子株式会社 | Method for producing float plate glass and apparatus for producing float plate glass |
-
2015
- 2015-03-12 JP JP2015049852A patent/JP2016169119A/en active Pending
-
2016
- 2016-03-07 KR KR1020160026947A patent/KR20160110142A/en unknown
- 2016-03-10 CN CN201610135880.2A patent/CN105967502B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0487737U (en) * | 1990-12-14 | 1992-07-30 | ||
| CN2651244Y (en) * | 2003-11-06 | 2004-10-27 | 中国凯盛国际工程公司 | Steel structure of molten tin bath bottom |
| JP2008196814A (en) * | 2007-02-15 | 2008-08-28 | Tlv Co Ltd | Evaporative cooling device |
| CN101823835A (en) * | 2009-03-03 | 2010-09-08 | 株式会社Lg化学 | Float bath system for manufacturing glass & cooling method of the same |
| CN103209935A (en) * | 2010-11-04 | 2013-07-17 | 旭硝子株式会社 | Method for producing float plate glass and apparatus for producing float plate glass |
Non-Patent Citations (2)
| Title |
|---|
| 于培霞等: "《大型浮法玻璃生产装置及其施工》", 31 May 2010, 中国轻工业出版社 * |
| 陈照峰主编: "《建筑用真空绝热板150问》", 31 July 2012, 西北工业大学出版社 * |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2016169119A (en) | 2016-09-23 |
| KR20160110142A (en) | 2016-09-21 |
| CN105967502B (en) | 2020-12-04 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104788009B (en) | Float glass making process and float glass manufacturing device | |
| IN2013DN06279A (en) | ||
| JP5724552B2 (en) | Thin glass manufacturing equipment | |
| CN102372419A (en) | Float bath for manufacturing float glass and cooling method of the same | |
| CN105967502A (en) | Glass manufacturing device and glass manufacturing method | |
| CN204198580U (en) | A kind of overflow downdraw produces the temperature-control device in base plate glass | |
| CN108996895A (en) | A kind of glass substrate overflow molding crystallization control device | |
| CN104671643A (en) | Apparatus for manufacturing float glass and method for manufacturing float glass | |
| CN204981591U (en) | Optical glass billot forming device | |
| CN105483620B (en) | Jet element, evaporation coating device and the method for making organic light emitting diode device | |
| KR101493578B1 (en) | Molten glass vacuum degassing apparatus, vacuum degassing method, and apparatus and method for manufacturing glass product | |
| EP2390237B1 (en) | System and method for forming a glass sheet | |
| JP6115466B2 (en) | Method for producing float glass sheet | |
| ES2429343T3 (en) | Injector for a vacuum evaporation source | |
| JP6451299B2 (en) | Method for supplying molten glass | |
| TWI449677B (en) | Process for producing flat glass and float bath apparatus | |
| US3650723A (en) | Glass gob delivery | |
| CN105377778B (en) | Float glass manufacturing device and the float glass making process using the device | |
| CN101759138A (en) | Positive pressure thermoforming manufacturing method of wafer-level glass micro-channel | |
| CN103586428A (en) | Integrated strip spraying bag | |
| CN205088103U (en) | Optical glass shaping is with apron device | |
| KR101562707B1 (en) | Composite glass forming system | |
| JP2016183054A (en) | Float glass manufacturing apparatus and float glass manufacturing method using the same | |
| JP5704505B2 (en) | Sheet glass manufacturing apparatus and sheet glass manufacturing method | |
| CN105517963A (en) | Manufacturing method for molten glass and manufacturing method for sheet glass using same |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB02 | Change of applicant information |
Address after: Tokyo, Japan Applicant after: AGC Corporation Address before: Tokyo, Japan Applicant before: Asahi Glass Co., Ltd. |
|
| CB02 | Change of applicant information | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |