CN110255866A - A kind of glass molding pond and its method for regulating temperature with temperature adjustment function - Google Patents
A kind of glass molding pond and its method for regulating temperature with temperature adjustment function Download PDFInfo
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- CN110255866A CN110255866A CN201910660214.4A CN201910660214A CN110255866A CN 110255866 A CN110255866 A CN 110255866A CN 201910660214 A CN201910660214 A CN 201910660214A CN 110255866 A CN110255866 A CN 110255866A
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- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B5/00—Melting in furnaces; Furnaces so far as specially adapted for glass manufacture
- C03B5/16—Special features of the melting process; Auxiliary means specially adapted for glass-melting furnaces
- C03B5/235—Heating the glass
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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
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- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B5/00—Melting in furnaces; Furnaces so far as specially adapted for glass manufacture
- C03B5/16—Special features of the melting process; Auxiliary means specially adapted for glass-melting furnaces
- C03B5/235—Heating the glass
- C03B5/2356—Submerged heating, e.g. by using heat pipes, hot gas or submerged combustion burners
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P40/00—Technologies relating to the processing of minerals
- Y02P40/50—Glass production, e.g. reusing waste heat during processing or shaping
- Y02P40/57—Improving the yield, e-g- reduction of reject rates
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- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Combustion & Propulsion (AREA)
- Re-Forming, After-Treatment, Cutting And Transporting Of Glass Products (AREA)
- Surface Treatment Of Glass (AREA)
Abstract
The invention discloses a kind of, and the glass with temperature adjustment function forms pond and its method for regulating temperature, and molding pond has side wall and bottom of pond；It is provided with glass metal on side wall and enters hole；The upper surface of bottom of pond is provided with the oblique bushing of symmetrical left platinum alloy and the oblique bushing of right platinum alloy, and the left margin of the left oblique bushing of platinum alloy is provided with horizontal left connection side, and the right edge is provided with downward left diversion edges；Along horizontal right connection side is provided with, left margin is provided with downward right diversion edges on the right of the right oblique bushing of platinum alloy；Left diversion edges and right diversion edges form the glass metal outlet in molding pond；Enter in glass metal and sets gradually the first heating component of multiple groups in the molding pond below hole from top to bottom.The molding pond of the invention is by adjusting the temperature of glass liquid on horizontal direction and vertical direction, and the temperature of glass liquid in glass metal exit, the volume flow of glass metal can be precisely controlled, production method is more stably and controllable, the glass board finished product consistency of production is high, quality more preferably.
Description
Technical field
The present invention relates to glass manufacturing areas, and in particular to a kind of glass molding pond and its temperature adjustment side with temperature adjustment function
Method.
Background technique
Flexible glass is a kind of novel thin film glass substrate material, 0.02~0.1mm of thickness, flexible.Flexible glass
Glass is coiled in addition to that can be bent, also have surface is flat, resistance to 600 DEG C of high temperature is indeformable, ageing-resistant, translucency is good, good airproof performance,
Electric insulation, acid and alkali-resistance and dimensionally stable etc..Flexible glass can be improved the exterior quality of display device and electronic product and make
With the service life, it is optimal the flexible electronic devices performance such as flexible display, touch sensor, solar panel and illumination
Change.In addition, flexible glass can also realize that electronic component is processed using (roll-to-roll) serialization of takeup type technique.
Flexible display on the market mostly uses greatly high molecular polymer substrate at present.Although macromolecule polymer material has
There is preferable bending property, but its thermal stability, compression strength, translucency and chemical stability etc. are not as good as glassware.It is high
The major defect of Molecularly Imprinted Polymer baseplate material is the high temperature process intolerant to display pannel, and since OLED is to aqueous vapor and oxygen
Gas is very sensitive, and the macromolecule polymer material as encapsulation can not be competent at, and needs that one layer of sealing layer material additionally is deposited.Separately
Outside, as touch screen panel plate material, not damage resistant and it is easy to aging the disadvantages of all to constrain macromolecule polymer material aobvious in flexibility
Show the development and application in device field.Flexible glass can solve these problems, flexible OLED, flexible light, flexible photovoltaic module,
The various fields such as flexible electronic paper, flexible chip, high temperature capacitors have a vast market application prospect.
For ultrathin flexible glass making process, the problem of being most difficult to is that how to overcome surface tension to draw glass thin.
Because only that sheet thickness, which is reduced to 0.1mm or less, just has preferable flexural property, more preferably situation is required glass
Glass plate is worked into thickness 0.05mm hereinafter, optimal need to reach 0.03mm or less.In order to reduce cost of manufacture, optimal method is
It is directly that the glass metal exhibition of molten condition is thin at sheet glass, therefore its manufacture craft difficulty is very big.The manufacture work of flexible glass
Skill mainly includes overflow downdraw, slot draw method, float glass process, reheats glass tube down-drawing, blowing method etc., narrow in these processes
It stitches glass tube down-drawing manufacturing process glass plate root to generate controllably, thickness is adjustable, and temperature control is easy, and equipment is simply at low cost, and benefit
Opened up under self gravitation effect with glass plate thin, it is the optimal manufacturing process of flexible glass that drawing force control is accurate.
Slot draw method process for making is: the glass metal of high temperature fused state is exported from glass metal to flow out, and forms glass
Glass plate root.A relatively crucial problem is in manufacturing process, and the control error of the glass flow rate of glass metal outlet is be easy to cause
The problem of plate root thickness distribution unevenness, and then the later period is caused to stretch the failure for opening up thin process.The glass manufacturing process of the prior art
In, the flow velocity due to glass metal in glass metal exit is extremely low, causes temperature deviation very big, needs to this segment glass liquid temperature
Accurate control is done to achieve the effect that stability of flow.
Summary of the invention
In order to solve the above technical problems, the main object of the present invention is to provide a kind of glass molding pond with temperature adjustment function
And its method for regulating temperature, temperature-compensating can be carried out to glass metal in molding pond, and then accurately control the glass of outflow glass metal outlet
Glass flow quantity.
In order to achieve the above object, the present invention is resolved using following technical scheme.
(1), a kind of glass with temperature adjustment function forms pond, and the molding pond has side wall and bottom of pond；
Glass metal, which is provided with, on the side wall enters hole；It is oblique that the upper surface of the bottom of pond is provided with symmetrical left platinum alloy
Bushing and the oblique bushing of right platinum alloy, the left margin of the left oblique bushing of platinum alloy are provided with horizontal left connection side, and the right edge is set
It is equipped with downward left diversion edges；The right of the oblique bushing of right platinum alloy is arranged along horizontal right connection side, left margin is provided with
There are downward right diversion edges；Left diversion edges and right diversion edges form the glass metal outlet in the molding pond；Enter hole in glass metal
The first heating component of multiple groups is set gradually in the molding pond of lower section from top to bottom.
Further, the first heating component described in every group includes temperature sensor, heating plate and U-shaped heating tube；It is described at
The inner surface of one group of opposite side wall of type pond or so is symmetrical arranged heating plate, is horizontally disposed with U on the side wall in front of the molding pond
Shape heating tube, the U-shaped heating tube are located at the lower section of the heating plate, and the temperature sensor is located in heating plate.
Further, enter in glass metal and be provided with the second heating component outside the side wall in the molding pond above hole.
Further, second heating component includes heater strip and soaking plate；The heater strip is fixed at described
Outside the side wall for forming pond, soaking plate is provided on the outer surface of the side wall.
Further, thermometric galvanic couple is respectively arranged on the oblique bushing of the left platinum alloy and the oblique bushing of right platinum alloy.
Further, the rear and front end of the oblique bushing of left platinum alloy stretches out the side wall and is provided with terminals, described
The rear and front end of the right oblique bushing of platinum alloy stretches out the side wall and is provided with terminals.
Further, insulating layer is additionally provided with outside the side wall.
Further, it is provided with soft flame-proof layer between the upper surface on the left connection side and the lower surface of side wall, it is described
Hard flame retardant coating is provided between the lower surface on left connection side and the upper surface of bottom of pond；The upper surface on the right connection side and side wall
Lower surface between be provided with soft flame-proof layer, be provided with hard between the lower surface on the right connection side and the upper surface of bottom of pond
Flame retardant coating.
Further, cooling water pipe is provided with below the hard flame retardant coating, the cooling water pipe is penetrated into for cooling
Glass metal in the soft flame-proof layer prevents the glass metal leakage in molding pond.
It further, further include blender, the blender includes loom, and the lower end of the loom is provided with blade, institute
The upper end for stating loom is connected with motor；The blade is located at the glass metal and enters in the molding pond below hole.
(2) a kind of method for regulating temperature in the glass molding pond with temperature adjustment function, comprising the following steps:
Step 1, glass metal enters hole from the glass metal on molding pond side wall and enters in molding pond, forms multiple heating in pond
Plate respectively heats glass metal, keeps the temperature for forming the glass metal in pond incremented by successively from top to bottom；
Step 2, the multiple U-shaped heating tubes formed in pond respectively heat glass metal, make to form the glass metal in pond
Temperature successively successively decrease from centre to both sides.
Preferably, in step 1, temperature difference incremented by successively is not more than 5-20 DEG C.
Preferably, in step 2, the temperature difference successively successively decreased is no more than 3-10 DEG C.
Preferably, the method for regulating temperature further include: respectively to the wiring on the oblique bushing of left platinum alloy, the oblique bushing of right platinum alloy
End is powered, and heats to the oblique bushing of left platinum alloy, the oblique bushing of right platinum alloy, and then the glass in the glass metal exit to molding pond
Glass liquid is heated, and the temperature of glass liquid in glass metal exit is adjusted.
Preferably, the oblique bushing of left platinum alloy, the heating temperature on the oblique bushing of right platinum alloy are no more than 1080-1150 DEG C.
Technical solution of the present invention compared with the existing technology, by adjust molding pool inner water square to the glass on vertical direction
The temperature of glass liquid in glass liquid temperature and glass metal exit can be precisely controlled the volume flow of glass metal, producer
Method is more stably and controllable, the glass board finished product consistency of production is high, quality more preferably.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention for those of ordinary skill in the art without creative efforts, can be with
The structure shown according to these attached drawings obtains other attached drawings.
Fig. 1 is that there is the present invention glass of temperature adjustment function to form a kind of schematic diagram of embodiment in pond；
Fig. 2 is the partial enlarged view in Fig. 1 at A；
In the above figure: 1 side wall；2 bottom of pond；3 glass metals enter hole；The 4 left oblique bushings of platinum alloy；401 left connection sides；402 is left
Diversion edges；The 5 right oblique bushings of platinum alloy；501 right connection sides；502 right diversion edges；The outlet of 6 glass metals；7 temperature sensors；8 heating
Plate；9U shape heating tube；10 heater strips；11 soaking plates；12 insulating layers；13 soft flame-proof layers；14 hard flame retardant coatings；15 cooling waters
Pipe；16 blenders.
Specific embodiment
It is understandable in order to enable the above objects, features and advantages of the present invention to become apparent, with reference to the accompanying drawing to this hair
Bright specific embodiment is described in detail.
Detail is elaborated in the following description to fully understand the present invention.But the present invention can with it is a variety of not
Other way described herein is same as to implement, those skilled in the art can do class without violating the connotation of the present invention
Like popularization.Therefore the present invention is not limited by following public specific embodiment.
(1) Fig. 1 and Fig. 2 is referred to, a kind of glass molding pond with temperature adjustment function, the molding pond has side wall 1 and pond
Bottom 2；Glass metal, which is provided with, on the side wall 1 enters hole 3；It is oblique that the upper surface of the bottom of pond 2 is provided with symmetrical left platinum alloy
The left margin of bushing 4 and the oblique bushing 5 of right platinum alloy, the left oblique bushing 4 of platinum alloy is provided with horizontal left connection side 401, right
Edge is provided with downward left diversion edges 402；The right edge of the oblique bushing 5 of right platinum alloy is provided with horizontal right connection side
501, left margin is provided with downward right diversion edges 502；Left diversion edges 402 and right diversion edges 502 form the glass in the molding pond
Glass liquid outlet 6；The first heating component of multiple groups is set gradually from top to bottom in the molding pond that glass metal enters 3 lower section of hole.
In above embodiments, the side wall 1 for forming pond is made of the refractory brick of 1500 DEG C of tolerance or more high temperature, and refractory brick is
High zirconia material, can be to avoid the erosion of glass metal, and brick body inner wall smooth zero defect.The bottom for forming pond passes through left platinum alloy
Oblique bushing 4 and the oblique bushing 5 of right platinum alloy form back taper.Glass metal enters on the side wall 1 of 3 lower section of hole, sets gradually from top to bottom
The first heating component of multiple groups, makes glass metal from top to bottom form incremental temperature gradient in vertical direction, so that glass metal is from glass
The volume flow of 6 outflow of glass liquid outlet is precisely controlled, and drawing to later period flexible glass has improvement result.
Further, the first heating component described in every group includes temperature sensor 7, heating plate 8 and U-shaped heating tube 9；It is described
The inner surface for forming pond or so one group of opposite side wall 1 is symmetrical arranged heating plate 8, level on the side wall 1 in front of the molding pond
U-shaped heating tube 9 is set, and the U-shaped heating tube 9 is located at the lower section of the heating plate 8, and the temperature sensor 7 is located at heating plate 8
On.
In above embodiments, specifically, every group of first heating component includes that molding pond or so one group of opposite side is arranged in
Heating plate 8 on wall 1, the U-shaped heating tube 9 being horizontally disposed on the side wall 1 in front of molding pond, is arranged in the temperature in heating plate 8
Sensor 7.Heating plate 8 is to the glass liquid heating for leaning on proximal wall 1, and U-shaped heating tube 9 is to the glass liquid heating among heating plate 8.It examines
Consider the convenience of technique, temperature sensor 7 is mounted directly in heating plate, since the temperature of glass metal is higher than the temperature of heating plate
Degree, so temperature sensor approximatively represents the temperature of glass liquid at the locating height of the first heating component of this group.
Further, enter in glass metal and be provided with the second heating component outside the side wall 1 in the molding pond above hole 3.
In above embodiments, in order to isolated environment temperature to molding pond in temperature of glass liquid influence, enter hole 3 in glass metal
Second heating component is set outside the molding pond side wall 1 of top, to eliminate influence of the environment temperature to molding pond temperature.
Specifically, second heating component includes heater strip 10 and soaking plate 11；The heater strip 10 is fixed at
Outside the side wall 1 in the molding pond, the soaking plate 11 for making uniformity of temperature profile is provided on the outer surface of the side wall 1.
Further, thermometric galvanic couple is respectively arranged on the oblique bushing 4 of the left platinum alloy and the oblique bushing 5 of right platinum alloy.
Since the material of the oblique bushing 4 of left platinum alloy and the oblique bushing 5 of right platinum alloy is platinum alloy, a characteristic of platinum alloy is
Melten glass liquid can be contacted for a long time, chemical change does not occur, but long-time applied at elevated temperature is easy to appear creeping deformation, especially
Temperature is higher, and deformation is more serious.For the temperature convenient for acquiring the left oblique bushing 4 of platinum alloy and the oblique bushing 5 of right platinum alloy, the above implementation
In example, thermometric galvanic couple is respectively set on the oblique bushing 4 of left platinum alloy and the oblique bushing 5 of right platinum alloy.In view of the convenience of technique,
Thermometric galvanic couple is mounted directly on the oblique bushing 4 of left platinum alloy and the oblique bushing 5 of right platinum alloy, since the temperature of glass metal is higher than left platinum
The temperature of the oblique bushing 4 of alloy and the oblique bushing 5 of right platinum alloy, so thermometric galvanic couple approximatively represents the glass in glass metal exit
Liquid temperature.
Further, the rear and front end of the oblique bushing 4 of the left platinum alloy stretches out the side wall 1 and is provided with terminals, institute
The rear and front end for stating the oblique bushing 5 of right platinum alloy stretches out the side wall 1 and is provided with terminals.
Terminals are respectively set in the left oblique bushing 4 of platinum alloy and oblique 4 both ends of bushing of left platinum alloy, convenient for connection power supply, generate
Heat.
Further, insulating layer 12 is additionally provided with outside the side wall 1.
In above embodiments, in order to further increase influence of the environment to glass metal in molding pond, guarantor is also set up outside side wall 1
Warm layer 12, and the material of insulating layer 12 is insulating brick.
Further, soft flame-proof layer is provided between the upper surface on the left connection side 401 and the lower surface of side wall 1
13, hard flame retardant coating 14 is provided between the lower surface on the left connection side 401 and the upper surface of bottom of pond 2；The right connection side
Soft flame-proof layer 13, the lower surface and pond on the right connection side 501 are provided between 501 upper surface and the lower surface of side wall 1
Hard flame retardant coating 14 is provided between the upper surface at bottom 2.
In above embodiments, form pond side wall 1 lower surface and it is left connection in 401 or right connection while 501 between set
Soft flame-proof material is set, the exudation of glass metal can be prevented；When the upper surface of bottom of pond 2 and left connection are in 401 or right connection 501
Between hard flame retardant coating 14 is set, the oblique bushing 4 of left platinum alloy can be effectively prevented or the oblique bushing 5 of right platinum alloy overloads load-bearing.
Further, the lower section of the hard flame retardant coating 14 is provided with cooling water pipe 15, and the cooling water pipe 15 is for cold
But the glass metal in the soft flame-proof layer 13 is penetrated into, the glass metal leakage in molding pond is prevented.
In above embodiments, in order to further increase the oblique bushing 4 of left platinum alloy or the oblique bushing 5 of right platinum alloy and side wall 1, pond
Sealing between bottom 2 is arranged cooling water pipe 15 in the lower section of hard flame retardant coating 14, penetrates into the glass metal in gap due to being cooled down
The influence of water pipe 15, viscosity increase, and mobility is deteriorated, and then improve leakproofness.
It further, further include blender 16, the blender 16 includes loom, and the lower end of the loom is provided with paddle
The upper end of leaf, the loom is connected with motor；The blade is located at the glass metal and enters in the molding pond of 3 lower section of hole.
In above embodiments, in order to keep the temperature for forming glass metal in pond uniform, it is provided with blender 16 in molding pond,
The blade of blender 16 is located at glass metal and enters in the molding pond of 3 lower section of hole.
(2), a kind of method for regulating temperature in the glass molding pond with temperature adjustment function, comprising the following steps:
Step 1, glass metal from molding pond side wall 1 on glass metal enter hole 3 enter molding pond in, form pond in it is multiple plus
Hot plate 8 respectively heats glass metal, keeps the temperature for forming the glass metal in pond incremented by successively from top to bottom.
Specifically, the temperature sensor 7 in heating plate 8 periodically obtains the temperature information of heating plate 8, and will acquire
Temperature information is transmitted to the control terminal of heating plate 8, and then does thermal compensation to the glass metal at heating plate 8.And in vertical direction
Temperature difference incremented by successively is not more than 20 DEG C, is more preferably not more than 15 DEG C, optimal is not more than 5 DEG C.
Since glass metal belongs to the non-conductor of heat, and heating device belongs to local heating, glass to the heating of glass metal
There are hysteresis quality, the viscosities il of glass metal tends not to accurately be located in an effective range temperature change of liquid.For
This, is arranged the symmetrical single loop noble metal heating plate 8 of multiple groups in molding pond side wall 1, can be provided to glass metal in molding pond
The heating of enough time heat compensation is distributed.In actual production, slow heating gradient from top to bottom is very important.It is logical
It crosses and controls the temperature of the glass metal on vertical direction the accuracy controlling, it can be achieved that the volume flow at glass metal outlet 6, it is right
Later period flexible glass, which is drawn, has improvement result.
Step 2, the multiple U-shaped heating tubes 9 formed in pond respectively heat glass metal, make to form the glass metal in pond
Temperature successively successively decrease from centre to both sides.
Specifically, the temperature difference that glass metal successively successively decreases in the horizontal direction is no more than 10 DEG C, it is more excellent to be not more than 5 DEG C, most
It is excellent to be not more than 3 DEG C.U-shaped heating tube 9 can be adjusted to the upward temperature of glass liquid of pool inner water square is formed, and glass metal is made to exist
Horizontal direction forms temperature gradient high in the middle and low on both ends, by the control of temperature to the glass metal in horizontal direction, it can be achieved that
The further accuracy controlling of the volume flow at 6, and temperature gradient high in the middle and low on both ends are exported to glass metal, so that middle part
The flow of glass metal is slightly larger than the glass flow quantity on both sides, and glass plate final integral thickness under surface tension effects is consistent, reaches
To the accurate control to glass plate width direction thickness.
Step 3, it is powered respectively to the terminals on the oblique bushing 4 of left platinum alloy, the oblique bushing 5 of right platinum alloy, to left platinum alloy
Oblique bushing 4, the oblique bushing 5 of right platinum alloy are heated, and then are heated to the glass metal at the glass metal outlet 6 in molding pond,
Adjust the temperature of glass liquid at glass metal outlet 6.
Specifically, due to the conducting self-heating power very little of the oblique bushing of platinum alloy, have little time to flow through platinum alloy in glass metal oblique
Enough heat compensations are carried out to the glass metal at glass metal outlet 6 in the moment of bushing, therefore, the oblique bushing of platinum alloy is heated
Temperature should be lower than corresponding temperature of glass liquid.The glass metal back heating excessive to the oblique bushing of platinum alloy is reduced as far as possible simultaneously,
It is required that temperature of the temperature of glass metal not with the oblique bushing of platinum alloy forms the excessive temperature difference.
To prevent the oblique bushing 5 of the oblique bushing 4 of left platinum alloy, right platinum alloy from deforming, the oblique bushing 4 of left platinum alloy, right platinum alloy are oblique
Heating temperature on bushing 5 is no more than 1150 DEG C, more excellent for no more than 1100 DEG C, optimal for no more than 1080 DEG C, and heats temperature
Degree must be lower than 1~10 DEG C of temperature of glass liquid of corresponding glass metal exit.
Wherein, the rate of outflow of the glass metal at glass metal outlet 6 is with unit time, unit length inner volume flow QVMeter
Calculate (along width of glass sheet direction, i.e. every 1cm unit length on glass metal outlet length direction, the volume flow in the 1s unit time
Amount uses QVIndicate), calculation formula is as follows:
Wherein, K ' is volume flow correction factor, and ρ is glass density, and g is that acceleration of gravity is equal to 9.8m/s2, h be at
Metal level exports the height (as metal level height) of 6 upper ends to glass metal in type pond, and ω is the width of glass metal outlet,
S is that area constant is equal to 1cm2, l is the height of glass metal outlet, and η is viscosity of glass metal (changing with temperature T).
In addition, volume flow adjusted coefficient K ' it is not a constant constant.K ' becomes with the width ω that glass metal exports
Change, when ω is 1~3mm, COEFFICIENT K ' it is 7.027 × 10-2~11.817 × 10-2, specific data are as shown in table 1:
Table 1
| ω | 0.1 | 0.15 | 0.18 | 0.20 | 0.23 | 0.25 | 0.28 | 0.30 |
| K′ | 7.027 | 9.107 | 10.073 | 10.599 | 11.212 | 11.502 | 11.762 | 11.817 |
Wherein, in table 1, the unit of ω is cm, and the unit of K ' is × 10-2。
As shown from the above formula, viscosity of glass metal η will affect the volume flow Q of glass metalV, and viscosity of glass metal and glass
Liquid temperature T-phase mutually corresponds to, and can be determined by viscosity-temperature curve.Under viscosity-temperature curve, that is, condition of high temperature, the liter of the viscosity with temperature of glass
Height gradually decreases.For the curve drawn with the temperature of glass and viscosity viscosity-temperature curve, every kind of glass glues Wen Qu since composition is different
Line is different, but general trend is identical, and after temperature value determines, the corresponding viscosity number of temperature can be determined by viscosity-temperature curve.
Therefore, by adjust molding pool inner water square to on vertical direction temperature of glass liquid and glass metal outlet 6
The temperature of glass liquid at place can be precisely controlled the volume flow of glass metal, and production method is more stably and controllable, the glass of production
More preferably, gained glass plate is that thickness is less than 0.1mm ultrathin flexible glass plate for glass plate finished product consistency height, quality.
Three group of first heating component is provided in molding pond from top to bottom, wherein respectively first adds from top to bottom
Hot plate, the second heating plate and third heating plate set the target temperature value at glass metal outlet 6 as 1800 DEG C, and the following are uses
When the glass molding pond with temperature adjustment function of the application carries out temperature adjusting to glass metal, the temperature detection feelings at each position
Condition, specific as follows:
Embodiment 1
It is 1100 DEG C that the glass metal in molding pond, which enters the temperature of glass liquid at hole, and the setting temperature of the first heating plate is 1080
DEG C, the setting temperature of the second heating plate is 1090 DEG C, and the setting temperature of third heating plate is 1100 DEG C, the reality in glass metal exit
Border temperature of glass liquid is 1084 DEG C, 4 DEG C higher than target temperature value.
Embodiment 2
It is 1090 DEG C that the glass metal in molding pond, which enters the temperature of glass liquid at hole, and the setting temperature of the first heating plate is 1070
DEG C, the setting temperature of the second heating plate is 1078 DEG C, and the setting temperature of third heating plate is 1085 DEG C, the reality in glass metal exit
Border temperature of glass liquid is 1082 DEG C, 2 DEG C higher than target temperature value.
Embodiment 3
It is 1085 DEG C that the glass metal in molding pond, which enters the temperature of glass liquid at hole, and the setting temperature of the first heating plate is 1083
DEG C, the setting temperature of the second heating plate is 1085 DEG C, and the setting temperature of third heating plate is 1086 DEG C, the reality in glass metal exit
Border temperature of glass liquid is 1079 DEG C, 1 DEG C lower than target temperature value.
By embodiment 1-3 it is found that three heating plates in embodiment 3 it is incremented by successively temperature difference it is minimum, glass metal outlet
The actual glass liquid temperature at place is closer with target temperature value, shows to form lesser temperature difference and is conducive to glass metal and faster reaches
The target temperature value of setting.
Although the present invention is described in detail with a general description of the specific embodiments in this specification,
But on the basis of the present invention, it can be made some modifications or improvements, this it will be apparent to those skilled in the art that.Cause
This, these modifications or improvements on the basis of without departing from the present invention are fallen within the scope of the claimed invention.
Claims (10)
1. a kind of glass with temperature adjustment function forms pond, which is characterized in that the molding pond has side wall (1) and bottom of pond (2)；
Glass metal, which is provided with, on the side wall (1) enters hole (3)；The upper surface of the bottom of pond (2) is provided with symmetrical left platinum
The left margin of the oblique bushing of alloy (4) and the oblique bushing of right platinum alloy (5), the left oblique bushing of platinum alloy (4) is provided with a horizontal left side
It connects side (401), the right edge is provided with downward left diversion edges (402)；The right of the oblique bushing of right platinum alloy (5) is along setting
There is horizontal right connection side (501), left margin is provided with downward right diversion edges (502)；
The glass metal that left diversion edges (402) and right diversion edges (502) form the molding pond exports (6)；
Enter in the molding pond below hole (3) in glass metal and sets gradually the first heating component of multiple groups from top to bottom.
2. the glass according to claim 1 with temperature adjustment function forms pond, which is characterized in that the first heating described in every group
Component includes temperature sensor (7), heating plate (8) and U-shaped heating tube (9)；
The inner surface of the molding pond or so one group of opposite side wall (1) is symmetrical arranged heating plate (8), in front of the molding pond
U-shaped heating tube (9) are horizontally disposed on side wall (1), the U-shaped heating tube (9) is located at the lower section of the heating plate (8), the temperature
Degree sensor (7) is located on heating plate (8).
3. the glass according to claim 1 with temperature adjustment function forms pond, which is characterized in that enter hole in glass metal
(3) the second heating component is provided with outside the side wall (1) in the molding pond above；Second heating component include heater strip (10) and
Soaking plate (11)；The heater strip (10) is fixed at the side wall (1) in the molding pond outside, the outer surface of the side wall (1)
On be provided with soaking plate (11).
4. the glass according to claim 1 with temperature adjustment function forms pond, which is characterized in that the left platinum alloy tiltedly leaks
Thermometric galvanic couple is respectively arranged on plate (4) and the oblique bushing of right platinum alloy (5)；The rear and front end of the oblique bushing of left platinum alloy (4)
It stretches out the side wall (1) and is provided with terminals, the side wall (1) is stretched out in the rear and front end of the right oblique bushing of platinum alloy (5)
And it is provided with terminals.
5. the glass according to claim 1 with temperature adjustment function forms pond, which is characterized in that the side wall (1) is gone back outside
It is provided with insulating layer (12).
6. a kind of method for regulating temperature in the glass molding pond with temperature adjustment function, which comprises the following steps:
Step 1, glass metal from molding pond side wall (1) on glass metal enter hole (3) enter molding pond in, form pond in it is multiple plus
Hot plate (8) respectively heats glass metal, keeps the temperature for forming the glass metal in pond incremented by successively from top to bottom；
Step 2, the multiple U-shaped heating tubes (9) formed in pond respectively heat glass metal, make to form the glass metal in pond
Temperature is successively successively decreased from centre to both sides.
7. the method for regulating temperature in the glass molding pond according to claim 6 with temperature adjustment function, which is characterized in that step 1
In, temperature difference incremented by successively is not more than 5-20 DEG C.
8. the method for regulating temperature in the glass molding pond according to claim 6 with temperature adjustment function, which is characterized in that step 2
In, the temperature difference successively successively decreased is no more than 3-10 DEG C.
9. the method for regulating temperature in the glass molding pond according to claim 6 with temperature adjustment function, which is characterized in that the tune
Warm method further include: be powered respectively to the terminals on the oblique bushing of left platinum alloy (4), the oblique bushing of right platinum alloy (5), left platinum is closed
Golden tiltedly bushing (4), the oblique bushing of right platinum alloy (5) are heated, so to the glass metal at the glass metal outlet (6) in molding pond into
Row heating, adjusts the temperature of glass liquid at glass metal outlet (6).
10. the method for regulating temperature in the glass molding pond according to claim 9 with temperature adjustment function, which is characterized in that Zuo Bo
Heating temperature on the oblique bushing of alloy (4), the oblique bushing of right platinum alloy (5) is no more than 1080-1150 DEG C.
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