CN110425877A - Ceramic post sintering device and ceramic post sintering method - Google Patents
Ceramic post sintering device and ceramic post sintering method Download PDFInfo
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- CN110425877A CN110425877A CN201910724306.4A CN201910724306A CN110425877A CN 110425877 A CN110425877 A CN 110425877A CN 201910724306 A CN201910724306 A CN 201910724306A CN 110425877 A CN110425877 A CN 110425877A
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- 239000000919 ceramic Substances 0.000 title claims abstract description 183
- 238000005245 sintering Methods 0.000 title claims abstract description 91
- 238000000034 method Methods 0.000 title claims abstract description 22
- 230000005611 electricity Effects 0.000 claims description 9
- 230000000903 blocking effect Effects 0.000 claims description 3
- 230000005284 excitation Effects 0.000 claims description 3
- 229910052573 porcelain Inorganic materials 0.000 claims description 2
- 239000007789 gas Substances 0.000 description 31
- 238000010586 diagram Methods 0.000 description 7
- 239000000843 powder Substances 0.000 description 7
- PNEYBMLMFCGWSK-UHFFFAOYSA-N Alumina Chemical compound [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 6
- 239000011230 binding agent Substances 0.000 description 5
- 230000008569 process Effects 0.000 description 5
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 description 4
- 229910010293 ceramic material Inorganic materials 0.000 description 4
- 238000012423 maintenance Methods 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 239000007787 solid Substances 0.000 description 3
- 230000004888 barrier function Effects 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 239000013078 crystal Substances 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000000280 densification Methods 0.000 description 2
- 238000010891 electric arc Methods 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 239000011261 inert gas Substances 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 238000010422 painting Methods 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 239000011787 zinc oxide Substances 0.000 description 2
- 229910017083 AlN Inorganic materials 0.000 description 1
- PIGFYZPCRLYGLF-UHFFFAOYSA-N Aluminum nitride Chemical compound [Al]#N PIGFYZPCRLYGLF-UHFFFAOYSA-N 0.000 description 1
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 210000000988 bone and bone Anatomy 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000005684 electric field Effects 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 235000021384 green leafy vegetables Nutrition 0.000 description 1
- 230000002401 inhibitory effect Effects 0.000 description 1
- 238000009766 low-temperature sintering Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000009768 microwave sintering Methods 0.000 description 1
- 230000005012 migration Effects 0.000 description 1
- 238000013508 migration Methods 0.000 description 1
- 239000004570 mortar (masonry) Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27B—FURNACES, KILNS, OVENS OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
- F27B17/00—Furnaces of a kind not covered by any of groups F27B1/00 - F27B15/00
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D11/00—Arrangement of elements for electric heating in or on furnaces
- F27D11/08—Heating by electric discharge, e.g. arc discharge
- F27D11/10—Disposition of electrodes
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physical Or Chemical Processes And Apparatus (AREA)
Abstract
A kind of ceramic post sintering device, for being sintered ceramic green, the ceramic post sintering device includes cabinet, electrode, block media and fixed bracket, the electrode and the block media are set in the cabinet by the fixed bracket, the electrode includes first electrode and second electrode, the first electrode and the second electrode are at a distance of setting, the block media is set between the first electrode and the second electrode, the block media and the first electrode and/or the second electrode are at a distance of setting, the fixed bracket is also used to for the ceramic green being fixed between the first electrode and the second electrode, and makes the ceramic green and the block media interval or be apart arranged.The present invention also provides a kind of sintering ceramic methods using ceramic post sintering device.
Description
Technical field
The present invention relates to ceramic materials preparation technology field more particularly to a kind of ceramic post sintering device and ceramic post sintering sides
Method.
Background technique
Ceramic material is suffered from every field and is widely applied, such as can be used for manufacturing solar battery, piezoelectric device
Etc..The formation of ceramic material needs ceramic powder becoming green compact by forming technique, and ceramic green passes through sintering technology again
So that crystal grain migration is grown up, green compact shrink to form ceramic material.Using conventional high temperature sintering methods, the universal sintering temperature of ceramics
Degree is at 1000 DEG C or more, so that ceramic post sintering needs higher energy consumption and cost.There are many novel ceramics to burn in recent years
Knot technology is found, such as discharge plasma sintering, microwave sintering, flash burning, cold burning.
Wherein, flash burning technique (Flash Sintering) is to apply certain direct current or exchange in ceramic green two sides
Voltage realizes the densification of ceramics at relatively low temperatures under the booster action of electric field.When temperature reaches certain threshold value
When, electric current can rise rapidly in a short time in ceramic green, and green compact generate a large amount of Joule heat and with luminous phenomenon,
The densification of green compact is realized during very short.Flash burning technology can reduce the sintering temperature of ceramics, and greatly shorten
Even several seconds time to a few minutes needed for sintering, the energy consumption that sintering process needs are less.Flash burning process can simultaneously
The growth for inhibiting crystal grain makes ceramics have more excellent performance.Based on the above advantage, flash burning technology receives many passes
Note.
But flash burning technology still has some limitations at present: needing to coat conductive electrode in the two sides of ceramic green, pollute
The surface of sample, after the completion of sintering also grinds off conductive electrode；The shape of ceramic green is mostly dog bone shape and circle
Piece shape, it is difficult to meet the requirement under different application for ceramic shape；The device for needing additionally to heat, such as tube furnace, horse
Not furnace etc..
Summary of the invention
In view of this, it is necessary to provide a kind of ceramic post sintering device contactless, sintering temperature is low, it is above-mentioned to solve
Problem.
In addition, there is a need to provide a kind of ceramic post sintering method using the ceramic post sintering device.
A kind of ceramic post sintering device, for being sintered ceramic green, the ceramic post sintering device includes cabinet, electrode, resistance
Medium and fixed bracket are kept off, the electrode and the block media are set in the cabinet by the fixed bracket, described
Electrode includes first electrode and second electrode, and at a distance of being arranged, the block media is set for the first electrode and the second electrode
It is placed between the first electrode and the second electrode, the block media and the first electrode and/or second electricity
Pole at a distance of being arranged, the fixed bracket be also used to for the ceramic green being fixed on the first electrode and the second electrode it
Between, and make the ceramic green and the block media interval or be apart arranged.
Further, the electrode includes plate and column, and the block media edge is parallel to the first electrode and institute
The size for stating the direction of second electrode is greater than the size of the electrode.
Further, the cabinet is salable cabinet；The ceramic post sintering device further includes air inlet and gas outlet, institute
It states air inlet and the gas outlet is respectively used to be passed through gas and releases gas.
Further, the fixed bracket is at least partially arranged at the inside of the cabinet, the block media and electricity
Pole is set on the fixed bracket of the inside of the cabinet.
Further, the ceramic post sintering device further includes limiting device, and the limiting device is set to the fixed branch
On frame, the limiting device can be moved up and down along the fixed bracket, for adjusting the first electrode, second electricity
Relative distance between pole, the block media and the ceramic green.
A kind of sintering ceramic methods using the ceramic post sintering device, comprising the following steps:
One ceramic green is fixed in the ceramic post sintering device, in the ceramic green and the ceramic post sintering device
An at least electrode between have air gap；
It is passed through gas in the ceramic post sintering device, is placed in the ceramic green in the gas；And
Power on, increase the amplitude of voltage, the gas in the excitation institute air gap generates electric discharge, and maintenance is after a certain period of time
It cuts off the power, obtains the sintered ceramics of gas discharge.
Further, there is air gap between the ceramic green and the first electrode and/or the second electrode, it is described
The thickness of air gap is adjustable, the air gap with a thickness of 0-10mm.
Further, the first electrode, the second electrode, the block media and the ceramic green are plate
Shape, the length and width of the block media are all larger than the length and width of the electrode and the ceramic green.
Further, the first electrode, the second electrode, the block media and the ceramic green are column
Shape, the first electrode, the block media, the second electrode and ceramic green coaxial arrangement, the block media
Length be greater than the first electrode, the second electrode and the ceramic green length.
Further, the air gap is set between the first electrode and/or second electrode and the ceramic green, or
Person is set between the block media and the ceramic green.
The ceramic post sintering device provided by the present invention that ceramic post sintering is realized using gas discharge, can be realized compared with low temperature
Ceramic green is sintered under degree to obtain ceramics, substantially reduces the temperature of sintering ceramics；The ceramic post sintering device technique stream
Journey is simple, easy to operate, and not needing the painting top electrode on ceramic green can be realized sintering, not polluted product；Institute through the invention
The defects of ceramic dense degree of the ceramic post sintering device sintering of offer will reach 85% or more, not cracked.
Detailed description of the invention
Fig. 1 is the ceramic post sintering apparatus structure schematic diagram that first embodiment of the invention provides.
Fig. 2 is the ceramic post sintering apparatus structure schematic diagram that second embodiment of the invention provides.
Fig. 3 is the ceramic post sintering apparatus structure schematic diagram that third embodiment of the invention provides.
Fig. 4 is ceramic post sintering method flow diagram provided in an embodiment of the present invention.
Main element symbol description
| Ceramic post sintering device | 100 |
| Cabinet | 10 |
| Air inlet | 12 |
| Gas outlet | 14 |
| Electrode | 20 |
| First electrode | 22 |
| Second electrode | 24 |
| Air gap | 26 |
| Conducting wire | 28 |
| Power supply | 29 |
| Block media | 30 |
| Fixed bracket | 40 |
| Limiting device | 42 |
| Positive stop end | 422 |
| Movable end | 424 |
| Ceramic green | 50 |
The present invention that the following detailed description will be further explained with reference to the above drawings.
Specific embodiment
To better understand the objects, features and advantages of the present invention, with reference to the accompanying drawing and specific real
Applying mode, the present invention will be described in detail.It should be noted that in the absence of conflict, presently filed embodiment and reality
The feature applied in mode can be combined with each other.Many details are explained in the following description in order to fully understand this hair
Bright, described embodiment is only some embodiments of the invention, rather than whole embodiments.Based on the present invention
In embodiment, every other implementation obtained by those of ordinary skill in the art without making creative efforts
Mode shall fall within the protection scope of the present invention.
Unless otherwise defined, all technical and scientific terms used herein and belong to technical field of the invention
The normally understood meaning of technical staff is identical.Term as used herein in the specification of the present invention is intended merely to description tool
The purpose of the embodiment of body, it is not intended that in the limitation present invention.Term as used herein "and/or" includes one or more
All and arbitrary combinations of relevant listed item.
In the various embodiments of the invention, it is not intended to limit the present invention for ease of description, present patent application specification
And term used in claims " connection " is not limited to physics or mechanical connection, it is either direct to go back
It is indirect." upper ", " under ", " lower section ", " left side ", " right side " etc. be only used for indicating relative positional relationship, when being described the exhausted of object
After position change, then the relative positional relationship also correspondingly changes.
Referring to Fig. 1, for a kind of ceramic post sintering for realizing ceramic post sintering using gas discharge provided in an embodiment of the present invention
100 structural schematic diagram of device, the ceramic post sintering device 100 include cabinet 10, electrode 20, block media 30 and fixed bracket
40, the block media 30 and the electrode 20 are set in the cabinet 10 by the fixed bracket 40, the electrode 20
Including first electrode 22 and second electrode 24, with the second electrode 24 at a distance of being arranged, the blocking is situated between the first electrode 22
Matter 30 is set between the first electrode 22 and second electrode 24, and the first electrode 22 and second electrode 24 pass through conducting wire 28
It is electrically connected with a power supply 29；There is air gap 26 between the block media 30 and the first electrode 22 and/or second electrode 24.
The first electrode 22 and second electrode 24 generate voltage difference after powering on 29, with the raising of voltage difference,
Gas in the air gap 26 is excited to generate reaction of low temperature plasma to generate electric discharge phenomena, when gas discharge, the first electricity
Many micro discharge filaments are generated between pole 22 and second electrode 24, electric current can increase rapidly with the raising of the voltage of application at this time
Add, the block media 30 between first electrode 22 and second electrode 24 hinders electric discharge filament to develop to form electric arc, to remain thin
Silk discharge mode, each micro discharge filament is exactly a micro discharge, forms surface-discharge in 30 diffusion into the surface of block media, thus
Low-temperature sintering is carried out to the ceramic green 50 being placed between first electrode 22 and second electrode 24.
The cabinet 10 be it is sealable, the cabinet 10 is put in the first electrode 22 and the second electrode 24
Sealing state need to be in when electric, so that the ceramic green 50 carries out discharge sintering in suitable atmosphere.
Further, the cabinet 10 has air inlet 12 and gas outlet 14, is respectively used to be passed through gas and releases gas.
Further, the gas is inert gas or reducibility gas, such as nitrogen (N2), hydrogen-argon-mixed (H2/
Ar) etc..
Further, the material of the cabinet 10 is organic glass.
The power supply 29 can be set on the ceramic post sintering device 100, can also being external in ceramic post sintering dress
Set 100.When the power supply 29 is connected, under certain voltage difference, between the first electrode 22 and the second electrode 24 i.e.
Gas discharge phenomenon can be achieved.
Further, the power supply 29 can provide alternating voltage or pulse voltage for the ceramic post sintering device 100,
And adjustable electric voltage frequency and amplitude, so as to which suitable power parameter is arranged for different ceramic greens 50.
The fixed bracket 40 is at least partially arranged at the inside of the cabinet 10, so as to by the block media 30 and
Electrode 20 is set in the cabinet 10.
Further, at least provided with a limiting device 42, institute on the fixation bracket 40 of 10 interior zone of cabinet
Limiting device is stated for fixed object, the limiting device 42 can fix the object of different-thickness.
Specifically, the limiting device 42 includes positive stop end 422 and movable end 424, and the positive stop end 422 is set to described
On fixed bracket 40, the positive stop end 422 can be moved up and down along fixed bracket 40, for adjusting first electrode 22, second electrode
24, the relative distance between block media 30 and ceramic green 50；The movable end 424 is set to the limiting device 42
Side, the movable end 424 is for fixing first electrode 22, second electrode 24, block media 30 and ceramic green 50.It can be with
Understand ground, is adjusted between first electrode 22, second electrode 24, block media 30 and ceramic green 50 by limiting device 42
Relative distance, it can adjust the thickness of the air gap 26.
In the present embodiment, the block media 30 shares a limiting device 42 with the ceramic green 50, to make
The block media 30 is fitted closely with the ceramic green 50, and the electrode 20 is situated between with the ceramic green 50 and blocking respectively
Matter 30 is at a distance of setting；The electrode 20 and the block media 30 are plate, and the size of the ceramic green 50 is greater than the electricity
The size of pole 20, size of the block media 30 along the direction for being parallel to the first electrode 22 and second electrode 24 are greater than institute
The size of electrode 20 is stated, to make in discharge process, hinders the generation of electric arc.
It is to be appreciated that a limiting device 42 can be fixed on for first electrode 22 or second electrode 24 and block media 30
It is interior.
Further, the ceramic green 50 is along the size for being parallel to the first electrode 22 and the direction of second electrode 24
Less than the size of block media 30.
Further, the block media 30 is insulation and being capable of the material such as material resistant to high temperature, such as aluminium oxide, aluminium nitride
Material.
Referring to Fig. 2, the ceramic post sintering for realizing ceramic post sintering using gas discharge provided for second embodiment of the invention
100 structural schematic diagram of device, in the present embodiment, the electrode 20 and the block media 30 are plate, the block media
30 fit closely with first electrode 22 and second electrode 24 respectively, and the ceramic green 50 is apart set with the block media 30
It sets.Other to be identical with the first embodiment, which is not described herein again.
Referring to Fig. 3, the ceramic post sintering for realizing ceramic post sintering using gas discharge provided for third embodiment of the invention
100 structural schematic diagram of device, in the present embodiment, the electrode 20 and the block media 30 are column.Specifically, described
First electrode 22 is a solid cylindrical body, and the block media 30 is apart arranged around the first electrode 22, described second
Electrode 24 is fitted closely around the block media 30 and with the block media 30；The ceramic green 50 is set to the resistance
It keeps off between medium 30 and the first electrode 22, and is fitted closely with the block media 30.
It is to be appreciated that in other embodiments, the block media 30 is set to the first electrode 22 and ceramic green
Between base 50, the first electrode 22, the block media 30 and the ceramic green 50 fit closely setting, the ceramic green
At a distance of setting between base 50 and the second electrode 24.
It is to be appreciated that the size of ceramic post sintering device 100 provided by the present invention can be according to the ruler of ceramic green 50
It is very little to be designed, and the size of ceramic post sintering device 100 provided in embodiment is provided.
Referring to Fig. 4, the embodiment of the present invention also provides and a kind of realizes ceramic post sintering using the ceramic post sintering device 100
Preparation method, comprising the following steps:
Step S1: a ceramic green 50 is fixed in the ceramic post sintering device 100, the ceramic green 50 with it is described
The shape of block media 30 and the electrode 20 is identical, has air gap 26 between the ceramic green 50 and the electrode 20；
It is passed through specific gas in S2: Yu Suoshu ceramic post sintering device 100 of step, the ceramic green 50 is made to be placed in the gas
In body；
Step S3: powering on 29, and the amplitude of 29 output voltage of boost source excites the gas in the air gap 26 to generate
Electric discharge, maintenance cut off the power 29 after a certain period of time, obtain the sintered ceramics of gas discharge.
In step sl, the ceramic green 50 is especially by obtained by following steps: providing ceramic powder and bonding
The ceramic powder and the binder solution are sufficiently mixed by agent solution, in one embodiment, by the ceramic powder
And the binder solution is sufficiently stirred in mortar, grinds；Then mixed suspension is passed through to the sieve of 10~1000 mesh
Son is filtered, and obtains particle diameter distribution uniformly and area load has the ceramic powder of binder, the partial size of the ceramic powder is
Nanoscale or micron order.
The ceramic powder that area load has binder is placed in extrusion forming in custom mold, being formed has specific shape
Ceramic body, the shape of the ceramic body include the solid of the rule such as sphere, cylindrical body, cuboid, further include other not
The solid of rule.
The ceramic body is placed in heating and thermal insulation in heating device, for example, in one embodiment, by the ceramics
Green body is placed in Muffle furnace, is then heated to 400 DEG C of -800 DEG C of heat preservation 2h or more, is removed the binder in the ceramic body,
Obtain the ceramic green 50.
There are air gap 26, the gas at least between the electrode 20 or the block media 30 for the ceramic green 50
Gap 26 can be between ceramic green 50 and block media 30 and/or between the block media 30 and electrode 20.
Further, the air gap 26 with a thickness of 0-10mm, it is possible to understand that, the air gap 26 with a thickness of 0 when, i.e.,
Being adjacent between the object between the air gap 26 does not have air gap 26.
Preferably, the air gap 26 with a thickness of 1mm-10mm.
In step s 2, the environment according to required for ceramic green 50 is passed through gas, and the gas can be inert gas
Or reducibility gas.
In step s3, power on 29 and gradually rise the voltage magnitude of the output of power supply 29, wherein the frequency of the voltage
Rate is 0.5~20kHz, after more than the excitation threshold of the gas between air gap 26, generates dielectric barrier discharge；Then again with
The rate of 0.1~100V/s slowly increases the size of voltage, and the electric current between electrode 20 increases sharply at this time, passes through the pottery
The electric current of porcelain green compact 50 also sharply increases, and the ceramic green 50 crystallizes in a short time；Finally stop boosting, maintenance voltage is protected
Hold constant, the time of maintenance is more than 1min, obtains sintered ceramics；Final cutting power supply 29 is cooled to room to the ceramics
It can be taken off after temperature.
The present invention is specifically described below by embodiment.
Embodiment 1
It is that disk-shaped zinc oxide ceramics green compact 50 are fixed in ceramic post sintering device 100 shown in FIG. 1 by a shape
On bracket, wherein ceramic green 50 with a thickness of 1mm, diameter 10mm；First electrode 22 in ceramic post sintering device 100 and
Second electrode 24 be it is of the same size disk-shaped, the diameter of electrode 20 is 10mm；Block media 30 is rectangular aluminium oxide ceramics
Piece, block media 30 with a thickness of 1mm, side length 50mm.It is fitted closely not between the ceramic green 50 and block media 30
Air gap 26 is stayed, the air gap 26 with a thickness of 0.5mm, ceramic green 50 and the second electricity are left between block media 30 and first electrode 22
The air gap 26 with a thickness of 0.5mm is left between pole 24.Using AC power source 29,29 are powered on, the set of frequency of voltage is
5kHz is stepped up the amplitude of voltage, after generating uniform dielectric barrier discharge, then with the rate of 10V/s slowly increases electricity
Pressure stops boosting when there is flash burning phenomenon, disconnects power supply 29 after a hour is kept under this voltage, completes sintering.
Embodiment 2
Unlike the first embodiment: the block media 30 is close with the first electrode 22 and second electrode 24 respectively
Air gap 26 is not stayed in fitting, and the air gap with a thickness of 0.5mm is respectively arranged between the ceramic green 50 and the block media 30
26.Power supply 29 is nanosecond pulse power supply, and the frequency of voltage is set as 1kHz, width sets 50ns.
Other are same as Example 1, and which is not described herein again.
Embodiment 3
It is that columned zinc oxide ceramics green compact 50 are fixed in ceramic post sintering device 100 shown in FIG. 1 by a shape
On bracket, the first electrode 22 and second electrode 24 are coaxial tubular electrode, the first electrode 22, ceramic green 50, resistance
Gear medium 30 and second electrode 24 are sequentially coaxially arranged, and air gap 26 is provided between first electrode 22 and ceramic green 50；Specifically
Ground, the outer diameter of first electrode 22 are 25mm, and the internal diameter of second electrode 24 is 28mm, the length of first electrode 22 and second electrode 24
For 20mm；The internal diameter of ceramic green 50 is 26mm, and the outer diameter of ceramic green 50 is 27mm, and the length of ceramic green 50 is 20mm；
The internal diameter of block media 30 is 27mm, and the outer diameter of block media 30 is 28mm, and the length of block media 30 is 30mm.Using exchange
Power supply powers on 29, and the set of frequency of voltage is 5kHz, is stepped up the amplitude of voltage, generates uniform dielectric impedance and put
After electricity, then voltage increased slowly with the rate of 10V/s, stops boosting when there is flash burning phenomenon, keep one under this voltage
Power supply 29 is disconnected after a hour, completes sintering.
It is provided by the present invention using gas discharge realize ceramic post sintering ceramic post sintering device 100, can be realized compared with
Ceramic green 50 is sintered to obtain ceramics under low temperature, substantially reduces the temperature of sintering ceramics；Utilize the ceramic post sintering
The sintering of device 100 ceramic process process is simple, easy to operate, and not needing the painting top electrode on ceramic green 50 can be realized sintering,
Not polluted product；The ceramic dense degree that provided ceramic post sintering device 100 is sintered through the invention will reach 85% or more, no
The defects of cracked.
Embodiment of above is only used to illustrate the technical scheme of the present invention and not to limit it, although referring to the above preferable embodiment party
Formula describes the invention in detail, those skilled in the art should understand that, it can be to technical solution of the present invention
It modifies or equivalent replacement should not all be detached from the spirit and scope of technical solution of the present invention.
Claims (10)
1. a kind of ceramic post sintering device, for being sintered ceramic green, which is characterized in that the ceramic post sintering device include cabinet,
Electrode, block media and fixed bracket, the electrode and the block media are set to the cabinet by the fixed bracket
In, the electrode includes first electrode and second electrode, and the first electrode and the second electrode are at a distance of setting, the blocking
Medium is set between the first electrode and the second electrode, the block media and the first electrode and/or described
At a distance of being arranged, the fixed bracket is also used to for the ceramic green to be fixed on the first electrode and described second second electrode
Between electrode, and makes the ceramic green and the block media interval or be apart arranged.
2. ceramic post sintering device according to claim 1, which is characterized in that the electrode includes plate and column, described
Block media is greater than the size of the electrode along the size in the direction for being parallel to the first electrode and the second electrode.
3. ceramic post sintering device according to claim 1, which is characterized in that the cabinet is salable cabinet；The pottery
Porcelain sintering equipment further includes air inlet and gas outlet, and the air inlet and the gas outlet are respectively used to be passed through gas and release gas
Body.
4. ceramic post sintering device according to claim 1, which is characterized in that the fixed bracket is at least partially arranged at institute
The inside of cabinet is stated, the block media and electrode are set on the fixed bracket of the inside of the cabinet.
5. ceramic post sintering device according to claim 4, which is characterized in that the ceramic post sintering device further includes limit dress
It sets, the limiting device is set on the fixed bracket, and the limiting device can be moved up and down along the fixed bracket, is used
Relative distance between the adjusting first electrode, the second electrode, the block media and the ceramic green.
6. a kind of sintering ceramic methods using ceramic post sintering device described in claim 1-5 any one, which is characterized in that
The following steps are included:
One ceramic green is fixed in the ceramic post sintering device, in the ceramic green and the ceramic post sintering device extremely
There is air gap between a few electrode；
It is passed through gas in the ceramic post sintering device, is placed in the ceramic green in the gas；And
Power on, increase the amplitude of voltage, the gas in the excitation institute air gap generates electric discharge, maintains to cut off after a certain period of time
Power supply obtains the sintered ceramics of gas discharge.
7. sintering ceramic methods according to claim 6, which is characterized in that the ceramic green and the first electrode
And/or between the second electrode have air gap, the thickness of the air gap is adjustable, the air gap with a thickness of 0-10mm.
8. sintering ceramic methods according to claim 7, which is characterized in that the first electrode, the second electrode, institute
Stating block media and the ceramic green is plate, the length and width of the block media be all larger than the electrode and
The length and width of the ceramic green.
9. sintering ceramic methods according to claim 7, which is characterized in that the first electrode, the second electrode, institute
Stating block media and the ceramic green is column, the first electrode, the block media, the second electrode and described
The length of ceramic green coaxial arrangement, the block media is greater than the first electrode, the second electrode and the ceramics
The length of green compact.
10. sintering ceramic methods according to claim 8 or claim 9, which is characterized in that the air gap is set to first electricity
Between pole and/or second electrode and the ceramic green, or it is set between the block media and the ceramic green.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910724306.4A CN110425877A (en) | 2019-08-07 | 2019-08-07 | Ceramic post sintering device and ceramic post sintering method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910724306.4A CN110425877A (en) | 2019-08-07 | 2019-08-07 | Ceramic post sintering device and ceramic post sintering method |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111362707A (en) * | 2020-04-03 | 2020-07-03 | 清华大学深圳国际研究生院 | Room temperature ceramic sintering method and ceramic |
| CN111440002A (en) * | 2020-04-03 | 2020-07-24 | 清华大学深圳国际研究生院 | Ceramic sintering method and ceramic sintering device |
| CN115650736A (en) * | 2022-10-10 | 2023-01-31 | 国网江西省电力有限公司电力科学研究院 | Ceramic room-temperature ultrafast sintering method based on dielectric barrier discharge glue removal treatment |
| CN115974560A (en) * | 2022-10-10 | 2023-04-18 | 国网江西省电力有限公司电力科学研究院 | A kind of ceramic room temperature sintering method |
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| CN105555000A (en) * | 2014-10-28 | 2016-05-04 | 南京苏曼等离子科技有限公司 | Normal temperature glow discharge low-temperature plasma material processing device under large discharge interval |
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| CN102765946A (en) * | 2012-07-05 | 2012-11-07 | 中国科学院宁波材料技术与工程研究所 | Current assisted method for quickly preparing powder |
| CN105555000A (en) * | 2014-10-28 | 2016-05-04 | 南京苏曼等离子科技有限公司 | Normal temperature glow discharge low-temperature plasma material processing device under large discharge interval |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111362707A (en) * | 2020-04-03 | 2020-07-03 | 清华大学深圳国际研究生院 | Room temperature ceramic sintering method and ceramic |
| CN111440002A (en) * | 2020-04-03 | 2020-07-24 | 清华大学深圳国际研究生院 | Ceramic sintering method and ceramic sintering device |
| CN115650736A (en) * | 2022-10-10 | 2023-01-31 | 国网江西省电力有限公司电力科学研究院 | Ceramic room-temperature ultrafast sintering method based on dielectric barrier discharge glue removal treatment |
| CN115974560A (en) * | 2022-10-10 | 2023-04-18 | 国网江西省电力有限公司电力科学研究院 | A kind of ceramic room temperature sintering method |
| CN115650736B (en) * | 2022-10-10 | 2023-06-16 | 国网江西省电力有限公司电力科学研究院 | Ceramic room-temperature ultra-fast sintering method based on dielectric barrier discharge glue discharging treatment |
| CN115974560B (en) * | 2022-10-10 | 2024-03-12 | 国网江西省电力有限公司电力科学研究院 | Ceramic room temperature sintering method |
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