CN208034987U - Ceramic slurry degassing apparatus - Google Patents
Ceramic slurry degassing apparatus Download PDFInfo
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- CN208034987U CN208034987U CN201721888707.6U CN201721888707U CN208034987U CN 208034987 U CN208034987 U CN 208034987U CN 201721888707 U CN201721888707 U CN 201721888707U CN 208034987 U CN208034987 U CN 208034987U
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- degassing apparatus
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Abstract
The utility model provides a kind of ceramic slurry degassing apparatus, including：Blender, for stirring ceramic slurry；Sealed shell of tank is mounted on blender, for housing ceramic slurry；Vacuum pump, for extracting the air in sealed shell of tank out；On-line monitoring equipment, the solvent quality for monitoring ceramic slurry volatilization；Sealed shell of tank, on-line monitoring equipment and vacuum pump are sequentially connected by pipeline.Ceramic slurry degassing apparatus provided by the utility model, compared with prior art, this equipment monitors the solvent quality volatilized in real time, the viscosity of ceramic slurry can be calculated in whipping process, operating personnel, can be to avoid the excessively high influence subsequent technique processing of ceramic slurry viscosity by the viscosity number of setting demand.
Description
Technical field
The utility model belongs to Manufacturing Technology of Electronic Components & Devices field, and in particular to a kind of ceramic slurry degassing apparatus.
Background technology
Degassing process is that ceramic slurry mixes in necessary technique, and current laminated sheet type electronic component preparation process
One important process.As laminated sheet type electronic component more does smaller, the thickness of the ceramic chips of component is also the more to do the more thin,
Air blister defect just seems especially prominent.
In the prior art, manufacturer would generally add de-bubble solvent in ceramic slurry, and still, defrother is in the later stage
After sintering volatilization, it is possible to hole is generated on ceramic chips, to influence the consistency of tile.
To further increase the quality of ceramic chips, ceramic slurry stirs to remove pottery in vacuum environment in some manufacturers
Bubble in porcelain slurry.But using this degasification method there are certain defect, the solvent meeting of ceramic slurry in whipping process
It volatilizees because of stirring, causes the viscosity of ceramic slurry to rise, influence subsequent production technique.It is abundant in actual mechanical process
The bubble in ceramic slurry is removed, needs sufficiently long mixing time, but long mixing time can lead to the viscous of ceramic slurry
Degree rises, it is therefore desirable to and Cautious control stirs duration, and without visual indication, operating personnel are difficult to balance both demands, when
After vacuum degassing carry out viscosity measurement when find viscosity it is exceeded, it has to again degasification or again add solvent after return on
Road compounding process.
Utility model content
The purpose of this utility model is to provide a kind of ceramic slurry degassing apparatus, to solve degassing procedure in the prior art
In the problem of can not detecting ceramic slurry viscosity.
To achieve the above object, the technical solution adopted in the utility model is to provide a kind of ceramic slurry degassing apparatus, packet
It includes：
Sealed shell of tank, for housing ceramic slurry；
Blender, for stirring the ceramic slurry in the sealed shell of tank；
Vacuum pump, for extracting the air in the sealed shell of tank out；
On-line monitoring equipment, the solvent quality for monitoring ceramic slurry volatilization；
The sealed shell of tank is installed on the blender, the sealed shell of tank, the on-line monitoring equipment and described true
Sky pump is sequentially connected by pipeline.
Further, the on-line monitoring equipment includes for the filter of solvent flashing in absorbent ceramic slurry and being used for
The electronic scale of the filter weight is weighed, the filter is connected with the sealed shell of tank and the vacuum pump respectively by pipeline
It connects.
Further, the on-line monitoring equipment further includes entering the air inlet electromagnetism of the filter for controlling gas
Valve, the outlet solenoid valve and controller that gas is discharged for controlling the filter, the controller is respectively with described into pneumoelectric
Magnet valve, the outlet solenoid valve and the electronic scale are electrically connected.
Further, further include for extracting the sampling line of ceramic slurry, peristaltic pump, liquid container to be measured and viscosimeter；
Described sampling line one end is stretched into the sealed shell of tank, and the sampling line other end is connect with the peristaltic pump, described compacted
Dynamic pump extracts the sample of ceramic slurry out from the sealed shell of tank and is delivered to the liquid container to be measured, the probe of the viscosimeter
It stretches into the liquid container to be measured, detects the viscosity of ceramic slurry sample.
Further, it is provided in the slurry tank for putting ceramic slurry in the sealed shell of tank.
Further, the sealed shell of tank is glass jar.
Further, the on-line monitoring equipment is equipped with control panel.
Further, the blender is magnetic stirring apparatus.
Further, the sealed shell of tank is equipped with the thermometer for detecting the ceramic slurry temperature.
Further, the thermometer for measuring ceramic slurry sample temperature is provided on the probe of the viscosimeter.
Ceramic slurry degassing apparatus provided by the utility model originally can in real time be monitored with equipment and be waved compared with prior art
The solvent quality sent out can calculate the viscosity of ceramic slurry in whipping process, and operating personnel are by setting the viscous of demand
Angle value, can be to avoid the excessively high influence subsequent technique processing of ceramic slurry viscosity.
Description of the drawings
It, below will be to embodiment or the prior art in order to illustrate more clearly of the technical scheme in the embodiment of the utility model
Attached drawing needed in description is briefly described, it should be apparent that, the accompanying drawings in the following description is only that this practicality is new
Some embodiments of type for those of ordinary skill in the art without having to pay creative labor, can be with
Obtain other attached drawings according to these attached drawings.
Fig. 1 is the schematic diagram for the ceramic slurry degassing apparatus that the utility model embodiment provides；
Fig. 2 is the schematic diagram of on-line monitoring equipment in the ceramic slurry degassing apparatus that the utility model embodiment provides；
Fig. 3 is the flow chart for the ceramic slurry degasification method that the utility model embodiment provides.
Wherein, each attached drawing main mark in figure：
1- blenders；2- sealed shell of tank；21- slurry tanks；3- on-line monitoring equipments；30- control panels；31- filters；
32- electronic scales；33- controllers；34- air inlet electromagnetic valves；35- outlet solenoid valves；4- vacuum pumps；5- peristaltic pumps；51- probe tubes
Road；52- liquid containers to be measured；6- viscosimeters；61- viscosimeters are popped one's head in.
Specific implementation mode
In order to make technical problem to be solved in the utility model, technical solution and advantageous effect be more clearly understood, with
Lower combination accompanying drawings and embodiments, the present invention will be further described in detail.It should be appreciated that specific reality described herein
Example is applied only to explain the utility model, is not used to limit the utility model.
Referring to Fig. 1, the utility model embodiment is designed to provide a kind of ceramic slurry degassing apparatus, including：It stirs
Device 1 is mixed, the blender for stirring ceramic slurry；Sealed shell of tank 2 is mounted on blender, for housing ceramic slurry；Vacuum
Pump 4, for extracting the air in sealed shell of tank out；On-line monitoring equipment 3, the solvent quality for monitoring ceramic slurry volatilization；It is close
Sealed cans body 2, on-line monitoring equipment 3 and vacuum pump 4 are sequentially connected by pipeline.
Compared with prior art, the solvent matter volatilized is monitored in real time by the way that on-line monitoring equipment 3 is arranged in the present embodiment
Amount, operating personnel can calculate the viscosity of ceramic slurry in whipping process, operating personnel by setting the viscosity number of demand,
It can be to avoid the excessively high influence subsequent technique processing of ceramic slurry viscosity.
Further, Fig. 2 is referred to, on-line monitoring equipment 3 includes the filtering for solvent flashing in absorbent ceramic slurry
Device 31 and electronic scale 32 for weighing 31 weight of filter, filter 31 by pipeline respectively with sealed shell of tank 2 and vacuum pump 4
Connection.Because vacuum pump 4 can extract the air in sealed shell of tank 2 out, the air taken away includes originally existed in sealed shell of tank 2
Air flows into the gas of loss in the air of sealed shell of tank 2, ceramic slurry minute bubbles from external environment and waves because poorly sealed
The solvent sent out, filter 31 can adsorb the solvent that can be sent out, and weigh 31 increased weight of filter at this time, you can measure
The quality of the solvent volatilized.
Further, Fig. 2 is referred to, the air inlet electromagnetism for controlling gas entrance is additionally provided in on-line monitoring equipment 3
Valve 34, for control gas discharge outlet solenoid valve 35 and controller 33, controller 33 respectively with air inlet electromagnetic valve 34, go out
Pneumoelectric magnet valve 35 and electronic scale 32 are electrically connected.When the weightening of filter 31, electronic scale 32 can be anti-in real time by the weight of weightening
It feeds controller 33, when the weight that filter 31 increases weight reaches the numerical value of operating personnel's setting, controller 33 can close air inlet
Solenoid valve 34 and outlet solenoid valve 35, at this time vacuum pump 4 and blender 1 be simultaneously stopped running, so that ceramic slurry is kept existing viscous
Degree and degassing state, make ceramic slurry meet the demand of next process.
Further, Fig. 1 is referred to, ceramic slurry degassing apparatus provided in this embodiment further includes sampling line 51, compacted
Dynamic pump 5, liquid container to be measured 52 and viscosimeter 6；51 one end of sampling line is stretched into sealed shell of tank 2, for extracting ceramic slurry,
51 other end of sampling line is connect with peristaltic pump 5, and peristaltic pump 5 is by the sample delivery of ceramic slurry to liquid container 52 to be measured, viscosity
The probe of meter 6 stretches into liquid container 52 to be measured, detects the viscosity of ceramic slurry sample.To ensure that it is pre- that the viscosity of ceramic slurry meets
Whether the phase accurately measures the viscosity of ceramic slurry by viscosimeter 6, final to determine ceramic slurry in accordance with next process requirement.
Further, Fig. 1 is referred to, in ceramic slurry degassing apparatus provided in this embodiment, setting in sealed shell of tank 2
It is useful for the slurry tank 21 of accommodating ceramic slurry.Because of industrial demand, ceramic slurry degassing apparatus needs to handle high-volume
Ceramic slurry, to avoid the degassing effect of ceramic batch slurry under the influence of last consignment of ceramic slurry, therefore being arranged one to substitute
Container of the slurry tank 21 as accommodating ceramic slurry, avoid ceramic slurry from being attached to the inner wall of sealed shell of tank 2.
Further, sealed shell of tank 2 is made of quartz material, is glass tube.The sealed shell of tank 2 supported using quartz material
Entirety is transparent, and the operative condition inside personal observations' sealed shell of tank 2 easy to operation, in addition quartz material hardness is higher does not allow
It is fragile.
Further, Fig. 1 is referred to, the on-line monitoring equipment 3 is equipped with control panel 30.It can by control panel 30
To directly control the element monitored on-line and set inside 3.Specifically, it is provided with display equipment on control panel 30, for showing
The weightening of filter 2 or the viscosity for directly displaying the ceramic slurry stirred now.
Further, blender 1 is magnetic stirring apparatus.Common blender drives stirring rod to carry out slurry using motor
Stirring, due to the junction of motor and stirring rod be not present gap, this makes whole container be extremely difficult to condition of high vacuum degree, not compared with
High vacuum degree is difficult to the full extent eliminate the bubble in slurry, this will directly influence the quality of follow-up ceramic chips,
Cause yield rate low.And the spillings such as machine oil in motor are also so that container is difficult to keep high-cleanness, high, and this is to slurry matter
The influence of amount is also fatal.In the present embodiment, agitating device uses magnetic agitation principle, as contactless stirring.This
Sample container can accomplish high leakproofness.The vacuum degree and cleanliness factor in container are fundamentally improved, de-bubble efficiency is effectively promoted.
Such device does not need to fixed module, compatible various vessel, and by select different magnet rotors meet different vessels and
Solution height demand.
Further, sealed shell of tank 2 is equipped with for detecting the temperature of air themperature and ceramic slurry temperature in sealed shell of tank 2
Meter.Temperature is to calculate the important references value of viscosity, at different temperatures, the viscosity of same middle fluid also different from, this implementation
It is provided with thermometer in example, can more accurately estimate the viscosity of ceramic slurry.
Further, thermometer is provided on the probe of viscosimeter 6.The temperature of temperature and external environment in sealed shell of tank 2
Spend it is inconsistent, need to be by the ceramic slurry inside and outside sealed shell of tank 2 to accurately measure the viscosity of the ceramic slurry inside sealed shell of tank 2
Temperature is compared, and substitutes into and calculates, to find out the ceramic slurry in accurate sealed shell of tank 2.
Fig. 3 is referred to, the utility model embodiment another object is to provide a kind of ceramic slurry degasification method, wherein
Including step：
S1, preparation：Ceramic slurry is prepared in advance, records the quality of ceramic slurry and the component proportion of ceramic slurry；
S2, stirring degassing：The ceramic slurry is stirred in a sealed meter environment, while stirring ceramic slurry, is evacuated and is made
Air in industry region；
S3, solvent flashing quality is weighed：The air extracted out out of operating area, the filtering absorption are filtered using filter
The solvent that the ceramic slurry volatilizes, weighs filter weight in real time, the quality of the solvent to be volatilized；
S4, calculating：According to the weight of solvent of the initial viscosity of the ceramic slurry and volatilization, accounting equation is substituted into,
Calculate the viscosity of the ceramic slurry at this time；
S5, stop stirring：With the increase of mixing time, the solvent quality of volatilization increases, and ceramic slurry is viscous
Degree gradually changes, and when the ceramic slurry viscosity reaches specified section, stops stirring.
S7, degasification is completed：Ceramic slurry is taken out, subsequent processing is applied to.
In the present embodiment, because in stirring degassing step S2, the solvent in ceramic slurry can volatilize, therefore, in preparation
When modulating ceramic slurry in step S1, it will usually excessive solvent be added in its component, lost because of volatilization with balance
Solvent records the quality and component proportion of ceramic slurry, subsequently to calculate at this time；In stirring degassing step S2, because can not
It can guarantee sealed environment absolute tightness, taken away usually using the lasting air by sealed environment of vacuum pump, make entirely to seal
Environment can be in the state of negative pressure or vacuum, stir ceramic slurry at this time, ceramic slurry can be separated into thin under the action of stirring
Layer, the tiny bubble in thin layer is broken, and gas effusion, this portion gas can be maintained the vacuum pumping of sealed environment negative pressure state
It walks, achievees the purpose that remove bubble in ceramic slurry；In step s3, the air taken away includes existing originally in sealed environment
Air, because of the gas of loss in the poorly sealed air flowed into from external environment, ceramic slurry minute bubbles and volatilize
Solvent, filter can adsorb the solvent that can be sent out, and weigh the increased weight of filter at this time, you can measure the solvent volatilized
Quality, step S3 it is synchronous with step S2 carry out, measuring the quality of solvent can increase with the increase of mixing time, to ensure to count
According to timeliness；In step s 4, accounting equation can be obtained by common laboratory facilities, it may be determined that be normal conditions
Under with solvent quality score reduction, the viscosity of ceramic slurry can be in increase, and calculate step S4 progress synchronous with step S3, with
Ensure the accuracy of calculating data；In step s 5, once ceramic slurry viscosity increases to specified section, stop stirring, obtain
Appropriate viscosity and ceramic slurry Jing Guo degasification, the specified section of ceramic slurry viscosity, which is generally, is suitble to a certain of subsequent handling
Definite value, or it is conveniently operated personnel's operation for a certain range, it is the needs of following process specifically, specified section is usually chosen
In -1600 centipoise of 900 centipoise any value or in which a certain section.
The ceramic slurry degasification method that the utility model embodiment provides passes through reality compared with prior art in this method
When monitor the solvent quality that volatilizes, the viscosity of ceramic slurry can be calculated in whipping process, operating personnel pass through setting
The viscosity number of demand, can be to avoid the excessively high influence subsequent technique processing of ceramic slurry viscosity.
Further, calculation formula is：Wherein η is ceramic slurry at this time
The viscosity of material, η0For the fluid viscosity of solvent itself, a is correction factor, m1For the ceramic slurry gross mass, m2 is volatilization
The solvent quality, x are the mass fraction of other components in the ceramic slurry.
Further, Fig. 3 is referred to, further includes examining again after stopping whipping step S5 and before completion deaeration step S7
Survey step S6：Using the viscosity of ceramic slurry described in viscosity meter, if the ceramic slurry viscosity is less than the specified section,
It is again introduced into the stirring degassing step, if the ceramic slurry viscosity is higher than the specified section, in the ceramic slurry
The solvent is added, the viscosity of the ceramic slurry is debugged to the specified section.To ensure that the viscosity of ceramic slurry meets
It is expected that the viscosity of ceramic slurry is accurately measured by viscosimeter, it is final to determine ceramic slurry whether in accordance with next process requirement.
Further, in this embodiment the solvent used is ethyl alcohol；Using ethyl alcohol as solvent, drying rate is fast, reduces
The stand-by period is dried, baking needed temperature is reduced, reduces production cost and shorten the production time.In addition, ethyl alcohol itself
Dynamic viscosity is smaller, and is Newtonian fluid, and calculated ceramic slurry viscosity, data deviation are smaller based on ethyl alcohol viscosity.
Further, the group for the ceramic slurry modulated in preliminary step S1 is divided into：Ceramic powder 50%~60%；Dispersant
0.5%~1.5%；Solvent 30%~40%；Binder 3%~6%；Plasticizer 1%~4%；Solubilizer 0.5%~
2.5%.Above-mentioned ceramic powder favorable dispersibility reduces the processing cost of waste liquid exhaust gas, reduces and is injured to personnel.
Further, stirring degassing step is stirred using magnetic stirring apparatus.Common blender is driven using motor
Stirring rod is stirred slurry, and since gap is not present in the junction of motor and stirring rod, this so that whole container is difficult to reach
To condition of high vacuum degree, without higher vacuum degree, it is difficult to the full extent eliminate the bubble in slurry, this will be directly influenced
The quality of follow-up ceramic chips, causes yield rate low.And the spillings such as machine oil in motor are also so that container is difficult to keep high
Cleanliness factor, this influences to be also fatal to stock quality.In the present embodiment, agitating device uses magnetic agitation principle, i.e.,
For contactless stirring.Container can accomplish high leakproofness in this way.The vacuum degree and cleanliness factor in container are fundamentally improved,
Effectively promote de-bubble efficiency.Such device does not need to fixed module, compatible various vessel, and is turned by the different magnetic of selection
Overabundance of amniotic fluid foot different vessels and solution height demand.
Further, the grain size D for the powder that ceramic slurry uses50=100~600nm.According to woodcock equations,H is grain spacing in the equation, and d is particle diameter,For solid volume fraction, of powder
The spacing h of grain determines the Van der Waals force size between powder, and the size of Van der Waals force and fluid viscosity positive correlation.In this reality
The powder that 100~600nm grain sizes are chosen in example is applied, when adjusting ceramic slurry mass fraction or solvent quality score, viscosity becomes
Change gentle, operating process serious forgiveness height.
The above is only the preferred embodiment of the utility model only, is not intended to limit the utility model, all at this
All any modification, equivalent and improvement etc., should be included in the utility model made by within the spirit and principle of utility model
Protection domain within.
Claims (10)
1. a kind of ceramic slurry degassing apparatus, which is characterized in that including：
Sealed shell of tank, for housing ceramic slurry；
Blender, for stirring the ceramic slurry in the sealed shell of tank；
Vacuum pump, for extracting the air in the sealed shell of tank out；
On-line monitoring equipment, the solvent quality for monitoring ceramic slurry volatilization；
The sealed shell of tank is installed on the blender, the sealed shell of tank, the on-line monitoring equipment and the vacuum pump
It is sequentially connected by pipeline.
2. ceramic slurry degassing apparatus as described in claim 1, it is characterised in that：The on-line monitoring equipment includes for inhaling
The filter of solvent flashing and the electronic scale for weighing the filter weight, the filter pass through pipe in attached ceramic slurry
Road is connect with the sealed shell of tank and the vacuum pump respectively.
3. ceramic slurry degassing apparatus as claimed in claim 2, it is characterised in that：The on-line monitoring equipment further includes being used for
Control gas enters the air inlet electromagnetic valve of the filter, outlet solenoid valve and the control of gas is discharged for controlling the filter
Device processed, the controller respectively with the air inlet electromagnetic valve, it is described go out this valve of pneumoelectric and the electronic scale be electrically connected.
4. ceramic slurry degassing apparatus as described in any one of claims 1-3, it is characterised in that：Further include for extracting ceramics
Sampling line, peristaltic pump, liquid container to be measured and the viscosimeter of slurry；Described sampling line one end is stretched into the sealed shell of tank,
The sampling line other end is connect with the peristaltic pump, and the peristaltic pump extracts the sample of ceramic slurry out from the sealed shell of tank
Product are simultaneously delivered to the liquid container to be measured, and the probe of the viscosimeter stretches into the liquid container to be measured, detect ceramic slurry sample
The viscosity of product.
5. ceramic slurry degassing apparatus as described in any one of claims 1-3, it is characterised in that：Setting in the sealed shell of tank
It is useful in the slurry tank for putting ceramic slurry.
6. ceramic slurry degassing apparatus as described in any one of claims 1-3, it is characterised in that：The sealed shell of tank is glass
Tank.
7. ceramic slurry degassing apparatus as described in any one of claims 1-3, it is characterised in that：In the on-line monitoring equipment
Equipped with control panel.
8. ceramic slurry degassing apparatus as described in any one of claims 1-3, it is characterised in that：The blender stirs for magnetic force
Mix device.
9. ceramic slurry degassing apparatus as described in any one of claims 1-3, it is characterised in that：The sealed shell of tank, which is equipped with, to be used
In the thermometer for detecting the ceramic slurry temperature.
10. ceramic slurry degassing apparatus as claimed in claim 4, it is characterised in that：It is provided on the probe of the viscosimeter
Thermometer for measuring ceramic slurry sample temperature.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721888707.6U CN208034987U (en) | 2017-12-28 | 2017-12-28 | Ceramic slurry degassing apparatus |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721888707.6U CN208034987U (en) | 2017-12-28 | 2017-12-28 | Ceramic slurry degassing apparatus |
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| Publication Number | Publication Date |
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| CN208034987U true CN208034987U (en) | 2018-11-02 |
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ID=63955760
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108015892A (en) * | 2017-12-28 | 2018-05-11 | 南方科技大学 | The degasification method and degassing apparatus of ceramic slurry |
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2017
- 2017-12-28 CN CN201721888707.6U patent/CN208034987U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108015892A (en) * | 2017-12-28 | 2018-05-11 | 南方科技大学 | The degasification method and degassing apparatus of ceramic slurry |
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| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Shenzhen Nanwan Communication Co., Ltd Assignor: SOUTH UNIVERSITY OF SCIENCE AND TECHNOLOGY OF CHINA Contract record no.: X2020440020014 Denomination of utility model: Pottery thick liquids degassing apparatus Granted publication date: 20181102 License type: Exclusive License Record date: 20200509 |