CN109879583A - A kind of filling slurry of glass substrate and preparation method thereof and mixing device - Google Patents
A kind of filling slurry of glass substrate and preparation method thereof and mixing device Download PDFInfo
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- CN109879583A CN109879583A CN201910168429.4A CN201910168429A CN109879583A CN 109879583 A CN109879583 A CN 109879583A CN 201910168429 A CN201910168429 A CN 201910168429A CN 109879583 A CN109879583 A CN 109879583A
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Abstract
A kind of filling slurry of glass substrate of the present invention and preparation method thereof and mixing device, it includes aluminium oxide 75~80%, water 8~10%, polyacrylic acid ammonia 4~6%, carboxymethyl cellulose 9~10% that slurry is counted in mass ratio；Preparing Shi Xianyong ammonium hydroxide and adjusting the pH value of water is 10~11, sequentially adds aluminium oxide, polyacrylic acid ammonia and carboxymethyl cellulose, 24~30h of stirring is obtained；The position of initiative roll shaft and drive roll, driven roll shaft and driven voller is arranged in mixing device, and initiative roll shaft is identical as the radius of driven roll shaft, the radius of drive roll and driven voller is identical, initiative roll shaft and driven roll shaft are arranged in parallel under the action of limiting device and height is identical, it can guarantee under the action of motor, the first conveyer belt and the second conveyer belt, initiative roll shaft can drive driven roll shaft to rotate, and charging basket and drive roll, driven voller synchronous rotary are made by intrinsic frictional force, meet the time requirement of 24~30h of mixing.
Description
Technical field
The present invention relates to liquid crystal glass base production field, the filling slurry of specially a kind of glass substrate and its preparation side
Method and mixing device.
Background technique
Platinum channel be TFT-LCD with liquid crystal glass base produce in a vital component, main function is
Clarification, homogenizing and adjustment glass metal viscosity, improve glass metal and owe point, provide qualified good glass metal for next process.
Length be 3.46m platinum channel cooling section installation process in inevitably with peripheral heating alumina silk
There are the gap of 8~10mm between brick, the presence in this gap on the one hand can in the temperature-rise period of channel oxygen-enriched accelerated passage wall
Oxidation, on the other hand influences the intensity of channel cooling section entirety, so preparing a kind of and consistent ceramic slurry of heater strip brick ingredient
Material pours among the gap of cooling section and heater strip brick, becomes after being sintered under high temperature with heater strip brick and platinum channel cooling section
One entirety is the key that solve the problems, such as this, but there are no such slurries in the prior art.
Summary of the invention
Aiming at the problems existing in the prior art, the present invention provides a kind of filling slurry and preparation method thereof of glass substrate
And mixing device, it is convenient, efficient, oxygen-enriched accelerated passage wall oxidation at gap at high temperature was not only avoided, but also can be at high temperature
Filling slurry and heater strip brick are sintered to an entirety, improve the intensity of platinum channel cooling section channels peripheral entirety.
The present invention is to be achieved through the following technical solutions:
A kind of filling slurry of glass substrate, each component of the slurry include aluminium oxide 75% by mass percentage
~80%, water 8%~10%, polyacrylic acid ammonia 4%~6%, carboxymethyl cellulose 9%~10%.
A kind of preparation method of the filling slurry of glass substrate, includes the following steps,
Step 1, by mass percentage, aluminium oxide 75%~80%, water 8%~10%, polyacrylic acid ammonia 4% are taken respectively
~6% and carboxymethyl cellulose 9%~10%, it is 10~11 to obtain liquid A with the pH value that ammonium hydroxide adjusts water；
Step 2, according to the mass percent described in step 1, sequentially added into liquid A aluminium oxide, polyacrylic acid ammonia and
Carboxymethyl cellulose obtains mixed system A；
Step 3, mixed system A is stirred into for 24 hours~30h and obtains the filling slurry.
Further, aluminium oxide described in step 2 is powdered.
Further, in step 1 when the volume of water takes 8ml~10ml, the volume of ammonium hydroxide used is 18ml~22ml.
A kind of mixing device of the filling slurry of glass substrate, including barrel, drive roll, driven voller, initiative roll shaft are driven
Roll shaft, the first conveyer belt, the second conveyer belt and motor；
Fixing sleeve is equipped with drive roll on initiative roll shaft, and the exposed outside in drive roll in the rear and front end of initiative roll shaft is driven
On roll shaft fixing sleeve be equipped with driven voller, the exposed outside in driven voller in the rear and front end of driven roll shaft, wherein initiative roll shaft with from
Radius, the drive roll of action roller shaft are identical with the radius of driven voller, and initiative roll shaft and drive roll are coaxially disposed, driven roll shaft with it is driven
Roller coaxial arrangement；
The rear and front end of initiative roll shaft and driven roll shaft is fixed on limiting device, and initiative roll shaft can drive driven roll shaft to revolve
Turn, initiative roll shaft and driven roll shaft are arranged in parallel and height is identical, and drive roll and driven voller are used to support charging basket rotation；
The first conveyer belt is socketed on initiative roll shaft and driven roll shaft, the output end of motor can be driven by the second conveyer belt
Initiative roll shaft rotation.
Further, the limiting device includes four bearings and four bearing blocks, and four bearings are respectively sleeved at actively
The rear and front end of roll shaft and driven roll shaft, four bearing blocks are respectively assembled on four bearings, are fixed on the upper end of bottom bracket.
It further, further include bottom bracket, bearing block is bolted on the upper end of bottom bracket.
Further, the lower end of initiative roll shaft is arranged in motor, be additionally provided between motor and the second conveyer belt idler wheel and
Third conveyer belt, the output end of motor are arranged by third conveyer belt and idler wheel transmission, and the is socketed on idler wheel and initiative roll shaft
Two conveyer belts.
Compared with prior art, the invention has the following beneficial technical effects:
Filling slurry of the invention is arranged in pairs or groups by the quality of aluminium oxide, water, polyacrylic acid ammonia and carboxymethyl cellulose,
Guarantee in main material aluminium oxide situation identical with heater strip brick ingredient, arrange in pairs or groups respectively dispersing agent polyacrylic acid ammonia and rheological agent carboxylic
Methylcellulose not only can increase the affinity of aluminium oxide and water, and aluminium oxide is evenly dispersed in water, and can be to including oxygen
The effects of mixed system of change aluminium and polyacrylic acid ammonia composition plays thickening, forms a film, coheres, protects and suspend, finally can guarantee
Become an entirety with heater strip brick and platinum channel cooling section after being sintered under the filling slurry high temperature, it is cooling to improve platinum channel
The intensity of section channels peripheral entirety.
The present invention preparation fill slurry when use sol-gel method, by ammonium hydroxide adjust solvent pH value be 10~
11, suitable pH value provides the ionic environment to play a role for polyacrylic acid ammonia and carboxymethyl cellulose, stirs adequately
Under be sufficiently mixed aluminium oxide, polyacrylic acid ammonia and carboxymethyl cellulose, obtain the slurry of colloidal.The filling slurry is in height
It is low that posterior spiracle rate is sintered under normal temperature and pressure, bending strength height, the low porosity avoids oxygen-enriched acceleration platinum at gap at high temperature
Channel outer wall oxidation, high bending strength improve the intensity of platinum channel cooling section channels peripheral entirety.
The present invention prepares the mixing device of filling slurry, the position of initiative roll shaft and drive roll, driven roll shaft and driven voller
It is arranged and initiative roll shaft is identical as the radius of driven roll shaft, the radius of drive roll and driven voller is identical, in the work of limiting device
It is arranged in parallel with lower initiative roll shaft and driven roll shaft and height is identical, can guarantee in motor, the first conveyer belt and the second conveyer belt
Under the action of, initiative roll shaft can drive driven roll shaft to rotate, and make charging basket and drive roll, driven voller by intrinsic frictional force
Synchronous rotary meets the time requirement of 24~30h of mixing；Mixing device rotation is slow, and centrifugal force is small, can ensure the slurry of colloidal
Material slowly and uniformly mixes, and reaches the satisfactory porosity and bending strength after being finally sintered under high-temperature pressure.
Detailed description of the invention
Fig. 1 is the mixing device schematic diagram of present invention preparation filling slurry.
Fig. 2 is the A-A sectional view of Fig. 1.
In figure: 1- charging basket, 21- drive roll, 22- driven voller, 31- initiative roll shaft, 32- driven roll shaft, 41- first are transmitted
Band, the second conveyer belt of 51-, 61- third conveyer belt, 6- bolt, 7- bearing block, 8- bottom bracket, 9- bearing, 10- motor, 11-
Idler wheel.
Specific embodiment
Below with reference to specific embodiment, the present invention is described in further detail, term "front", "rear", "upper" and
The orientation or positional relationship of "lower" instruction is to be based on the orientation or positional relationship shown in the drawings, and is merely for convenience of the description present invention
It is described with simplifying, is not that the component of indication or suggestion meaning must have a particular orientation, described is explanation of the invention
Rather than it limits.
The present invention prepares a kind of ceramic slurry identical with heater strip brick ingredient, pours in platinum channel cooling section and heating
Among the gap of silk brick, becomes an entirety with heater strip brick and platinum channel cooling section after being sintered under high temperature, solve platinum
Oxygen-enriched accelerated oxidation is led to the problem of in the cooling section installation process of channel and influences its integral strength.
The method that the present invention prepares platinum channel cooling section filling slurry, first by a certain amount of high-purity alumina powder first with
A small amount of water mixing, is then added a certain amount of dispersing agent and rheological agent, completes to prepare after finally being turned with mixing device is mixed.Preparation
Mixed liquor slurry properties out are stablized, and do not reunite.The mixed liquor slurry is poured to platinum channel cooling section and heater strip brick
Gap among, not only avoided oxygen-enriched accelerated passage wall oxidation at gap at high temperature, but also will can fill slurry at high temperature
It is sintered to an entirety with heater strip brick, improves the intensity of platinum channel cooling section channels peripheral entirety.
The mixing device that the present invention prepares platinum channel cooling section filling slurry is as depicted in figs. 1 and 2, including barrel 1, master
Dynamic roller 21, driven voller 22, initiative roll shaft 31, driven roll shaft 32, the first conveyer belt 41, the second conveyer belt 51 and motor 10；
Fixing sleeve is equipped with drive roll 21 on the initiative roll shaft 31, and the rear and front end of initiative roll shaft 31 is exposed in drive roll
21 outside, fixing sleeve is equipped with driven voller 22 in driven roll shaft 32, and the rear and front end of driven roll shaft 32 is exposed in driven voller 22
Outside, wherein initiative roll shaft 31 is identical as the radius of the radius of driven roll shaft 32, drive roll 21 and driven voller 22, initiative roll shaft 31
It is coaxially disposed with drive roll 21, driven roll shaft 32 and driven voller 22 are coaxially disposed；
The rear and front end of initiative roll shaft 31 and driven roll shaft 32 is fixed on limiting device, and initiative roll shaft 31 can drive driven
The rotation of roll shaft 32, initiative roll shaft 31 and driven roll shaft 32 are arranged in parallel and height is identical, and drive roll 21 and driven voller 22 are for branch
Charging basket 1 is supportted to rotate；
The first conveyer belt 41 is socketed on initiative roll shaft 31 and driven roll shaft 32, the output end of motor 10 can be passed by second
Send band 51 that initiative roll shaft 31 is driven to rotate.
Limiting device include four bearings 9 and four bearing blocks 7, four bearings 9 be respectively sleeved at initiative roll shaft 31 and from
The rear and front end of action roller shaft 32, four bearing blocks 7 are respectively assembled on four bearings 9, are fixed on the upper end of bottom bracket 8.
It in the present embodiment, further include bottom bracket 8, bearing block 7 is fixed on the upper end of bottom bracket 8 by bolt 6；Electricity
The lower end of initiative roll shaft 31 is arranged in machine 10, is additionally provided with idler wheel 11 and third conveyer belt between motor 10 and the second conveyer belt 51
61, the output end of motor 10 is arranged by third conveyer belt 61 and the rotation of idler wheel 11, is socketed on idler wheel 11 and initiative roll shaft 31
Second conveyer belt 51.
Specifically, the output end of motor 10 drives initiative roll shaft 31 and 21 turns of drive roll by driving the second conveyer belt 51
Dynamic, initiative roll shaft 31 and drive roll 21 are rotated by the first conveyer belt 41 drive driven roll shaft 32 and driven voller 22.Therefore mixed
When material motor 10 output end drive drive roll 21 rotate, drive roll 21 so drive driven voller 22 rotate, by and drive roll
21, frictional force intrinsic between driven voller 22, barrel 1 realize and drive roll 21 and the synchronous rotation of driven voller 22, final realization
The purpose of mixing.
A certain amount of water is added in barrel 1 first in specific preparation filling slurry, a certain amount of ammonia is added by the present invention
The pH value that water adjusts solution is 10~11；Then a certain amount of alumina powder is added in barrel 1, a certain amount of dispersion is added
Agent and rheological agent stir evenly, and dispersing agent is polyacrylic acid ammonia, and rheological agent is carboxymethyl cellulose, wherein aluminium oxide, gathers water
The mass percentage content of acrylic acid ammonia and carboxymethyl cellulose, i.e. wt% are as follows: 75%≤aluminium oxide≤80%, 8%≤water≤
10%, 4%≤polyacrylic acid ammonia≤6%, 9%≤carboxymethyl cellulose≤10%；Finally the barrel 1 for having configured slurry is placed
It mixes and turns on the drive roll 21 and driven voller 22 of mixing device, the drive roll 21 of 1 side of barrel rotates, and driven voller 22 is driven to rotate
The stable filling slurry of property is prepared after 24~30h.
In specific ingredient, when the quality of aluminium oxide is 75g~80g, the volume of water is 8ml~10ml, polyacrylic acid ammonia
Volume be 4ml~6ml and when the volume of carboxymethyl cellulose is 9ml~10ml, the volume of ammonium hydroxide is 18ml~22ml.
In the present embodiment, the Al that the present invention selects2O3Powder purity is 99.99%；The dispersing agent used is polyacrylic acid
Ammonia, dispersion mechanism are to be adsorbed in solid particles surface, on the one hand reduce the interfacial tension between liquid-liquid or solid-liquid, increase
The affinity of solid particle and water makes the solid particles surface of cohesion be easy to soak, and is on the other hand formed and is adsorbed in the surface of solids
Layer increases solid particles surface charge, and raising forms the intergranular reaction force of steric hindrance, makes between solid particle because quiet
Electric repulsion and it is separate；Rheological agent is carboxymethyl cellulose, to the mixture of water, ammonium hydroxide, aluminium oxide and polyacrylic acid ammonia composition
System has the effects that thicken, forms a film, coheres, colloid is protected and suspension.
Filling slurry of the invention has done offline performance pair with filling slurry used in current producing line before producing line application
Than, it is specific as follows,
1, producing line is used to fill slurry；
By Al2O3Powder is directly mixed into used in current producing line with hot water and fills slurry, and mixed slurry is passed through note
In slurry molding injection mold, after sample air-dries, platinum channel cooling section temperature is simulated, 1500 DEG C of normal pressures are burnt in high temperature furnace
Knot, is denoted as sample X-1 for the sample being sintered, surveys its bulk density, apparent porosity and bending strength.It is drained by Archimedes
The bulk density that method measures sample 1 is 3.2g/cm3, apparent porosity 37%, since normal pressure-sintered sample X-1 out is loose
Material residue, so three-point bending method can not survey its bending strength.
2, filling slurry of the invention；
10ml water is added in barrel 1 first, it is 11 that ammonium hydroxide, which is added, and adjusts the pH of solution, and 80g Al is then added2O3Powder
It is added in barrel 1, is separately added into dispersing agent polyacrylic acid ammonia 6ml and rheological agent carboxymethyl cellulose 10ml is stirred evenly, it will
The barrel 1 for having configured slurry, which is placed on to mix on the drive roll 21 and driven voller 22 of mixing device, to be turned, the drive roll 21 of 1 side of barrel
Rotation drives driven voller 22 to rotate 30h and prepares the stable slurry of property, and wherein rotation time can also be for 24 hours and 26h, most
Slurry is injected in mold by injection forming afterwards, after sample air-dries, platinum channel cooling section temperature is simulated, in high temperature furnace
1500 DEG C normal pressure-sintered, and the sample being sintered is denoted as sample X-2 and surveys its bulk density, apparent porosity and bending strength.Pass through
The bulk density that Archimedes's drainage measures sample X-2 is 3.56g/cm3, apparent porosity 3.23%, three-point bending method survey
The bending strength for obtaining sample X-2 is 138MPa.
Compared with filling slurry used in current producing line, filling slurry of the invention is sintered posterior spiracle under high-temperature pressure
Rate is low, and bending strength is high, and the low porosity avoids oxygen-enriched acceleration platinum channel outer wall oxidation at gap at high temperature, and high is anti-
Curved intensity improves the intensity of platinum channel cooling section channels peripheral entirety.Therefore, it is obtained using preparation method of the invention
Platinum channel cooling section filling slurry can be good at solving to deposit between platinum channel cooling section and peripheral heating alumina silk brick
Clearance issues.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to restrict the invention, all in essence of the invention
Made any modification, equivalent replacement or improvement etc., should all be included in the protection scope of the present invention within mind and principle.
Claims (8)
1. a kind of filling slurry of glass substrate, which is characterized in that each component of the slurry includes oxygen by mass percentage
Change aluminium 75%~80%, water 8%~10%, polyacrylic acid ammonia 4%~6%, carboxymethyl cellulose 9%~10%.
2. a kind of preparation method of the filling slurry of glass substrate, which is characterized in that include the following steps,
Step 1, by mass percentage, aluminium oxide 75%~80% is taken respectively, water 8%~10%, polyacrylic acid ammonia 4%~
6% and carboxymethyl cellulose 9%~10%, it is 10~11 to obtain liquid A with the pH value that ammonium hydroxide adjusts water；
Step 2, according to the mass percent described in step 1, aluminium oxide, polyacrylic acid ammonia and carboxylic first are sequentially added into liquid A
Base cellulose obtains mixed system A；
Step 3, mixed system A is stirred into for 24 hours~30h and obtains the filling slurry.
3. a kind of preparation method of the filling slurry of glass substrate according to claim 2, which is characterized in that step 2 institute
The aluminium oxide stated is powdered.
4. a kind of preparation method of the filling slurry of glass substrate according to claim 2, which is characterized in that in step 1
When the volume of water takes 8ml~10ml, the volume of ammonium hydroxide used is 18ml~22ml.
5. a kind of mixing device of the filling slurry of glass substrate, which is characterized in that including barrel (1), drive roll (21), driven
Roller (22), initiative roll shaft (31), driven roll shaft (32), the first conveyer belt (41), the second conveyer belt (51) and motor (10)；
Fixing sleeve is equipped with drive roll (21) on initiative roll shaft (31), and the rear and front end of initiative roll shaft (31) is exposed in drive roll (21)
Outside, fixing sleeve is equipped with driven voller (22) in driven roll shaft (32), and the rear and front end of driven roll shaft (32) is exposed in driven voller
(22) outside, the wherein radius of the radius, drive roll (21) and driven voller (22) of initiative roll shaft (31) and driven roll shaft (32)
Identical, initiative roll shaft (31) and drive roll (21) are coaxially disposed, and driven roll shaft (32) and driven voller (22) are coaxially disposed；
The rear and front end of initiative roll shaft (31) and driven roll shaft (32) is fixed on limiting device, initiative roll shaft (31) can drive from
Action roller shaft (32) rotation, initiative roll shaft (31) is arranged in parallel with driven roll shaft (32) and highly identical, drive roll (21) and driven
Roller (22) is used to support charging basket (1) rotation；
It is socketed with the first conveyer belt (41) in initiative roll shaft (31) and driven roll shaft (32), the output end of motor (10) can pass through
Two conveyer belts (51) drive initiative roll shaft (31) rotation.
6. a kind of mixing device of the filling slurry of glass substrate according to claim 5, which is characterized in that the limit
Position device includes four bearings (9) and four bearing blocks (7), and four bearings (9) are respectively sleeved at initiative roll shaft (31) and driven
The rear and front end of roll shaft (32), four bearing blocks (7) are respectively assembled on four bearings (9), are fixed on the upper of bottom bracket (8)
End.
7. a kind of mixing device of the filling slurry of glass substrate according to claim 5, which is characterized in that further include bottom
Portion's bracket (8), bearing block (7) are fixed on the upper end of bottom bracket (8) by bolt (6).
8. a kind of mixing device of the filling slurry of glass substrate according to claim 5, which is characterized in that motor (10)
Lower end in initiative roll shaft (31) is set, idler wheel (11) is additionally provided between motor (10) and the second conveyer belt (51) and third passes
It send with (61), the output end of motor (10) is arranged by third conveyer belt (61) and idler wheel (11) transmission, idler wheel (11) and active
The second conveyer belt (51) are socketed on roll shaft (31).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910168429.4A CN109879583B (en) | 2019-03-06 | 2019-03-06 | Filling slurry of glass substrate, preparation method of filling slurry and mixing device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910168429.4A CN109879583B (en) | 2019-03-06 | 2019-03-06 | Filling slurry of glass substrate, preparation method of filling slurry and mixing device |
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| CN109879583A true CN109879583A (en) | 2019-06-14 |
| CN109879583B CN109879583B (en) | 2021-10-01 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JPS60262643A (en) * | 1984-06-11 | 1985-12-26 | 三菱重工業株式会社 | Ceramic heat-insulating material |
| CN103889076A (en) * | 2014-01-26 | 2014-06-25 | 中国电子科技集团公司第四十九研究所 | Electric heating wire with insulation layer and method for processing electric heating wire with insulation layer |
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| CN205216690U (en) * | 2015-12-14 | 2016-05-11 | 顾庞中夫 | Conveyer of horizontal compounding line |
| CN105731809A (en) * | 2014-12-11 | 2016-07-06 | 北京有色金属研究总院 | Insulating material for heating wire, preparation and application method thereof |
| CN108362748A (en) * | 2018-01-10 | 2018-08-03 | 北京科技大学 | A kind of preparation and application of heat-resisting wire beam electrode |
| CN109161233A (en) * | 2018-08-01 | 2019-01-08 | 彩虹显示器件股份有限公司 | A kind of covercoat paste of platinum heater strip and preparation method thereof and coating unit |
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2019
- 2019-03-06 CN CN201910168429.4A patent/CN109879583B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60262643A (en) * | 1984-06-11 | 1985-12-26 | 三菱重工業株式会社 | Ceramic heat-insulating material |
| CN103889076A (en) * | 2014-01-26 | 2014-06-25 | 中国电子科技集团公司第四十九研究所 | Electric heating wire with insulation layer and method for processing electric heating wire with insulation layer |
| CN104258737A (en) * | 2014-09-10 | 2015-01-07 | 山东工业陶瓷研究设计院有限公司 | Preparation method of large-size thin-wall hollow flat-plate ceramic film |
| CN105731809A (en) * | 2014-12-11 | 2016-07-06 | 北京有色金属研究总院 | Insulating material for heating wire, preparation and application method thereof |
| CN205216690U (en) * | 2015-12-14 | 2016-05-11 | 顾庞中夫 | Conveyer of horizontal compounding line |
| CN108362748A (en) * | 2018-01-10 | 2018-08-03 | 北京科技大学 | A kind of preparation and application of heat-resisting wire beam electrode |
| CN109161233A (en) * | 2018-08-01 | 2019-01-08 | 彩虹显示器件股份有限公司 | A kind of covercoat paste of platinum heater strip and preparation method thereof and coating unit |
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