CN108358642A - A kind of connection method of biscuit of ceramics - Google Patents
A kind of connection method of biscuit of ceramics Download PDFInfo
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- CN108358642A CN108358642A CN201810132413.3A CN201810132413A CN108358642A CN 108358642 A CN108358642 A CN 108358642A CN 201810132413 A CN201810132413 A CN 201810132413A CN 108358642 A CN108358642 A CN 108358642A
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- biscuit
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/515—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxide ceramics
- C04B35/56—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxide ceramics based on carbides or oxycarbides
- C04B35/565—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxide ceramics based on carbides or oxycarbides based on silicon carbide
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/622—Forming processes; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
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Abstract
The present invention relates to ceramic technology fields, specifically disclose a kind of connection method of biscuit of ceramics, and connection method includes step：S1, respectively to the first biscuit of ceramics wait for connection surface and the second biscuit of ceramics wait for that connection surface carries out mechanical processing pretreatment；S2, by connect slurry be attached to the first biscuit of ceramics wait for connection surface carry out tape casting；Articulamentum is formed after S3, tape casting, is fixed on the first biscuit of ceramics；S4, the second biscuit of ceramics is waited for that connection surface is docked with articulamentum, articulamentum is made to cure, realize the connection between two biscuit of ceramics.The connection method of the present invention with one of biscuit of ceramics by connection slurry by first carrying out tape casting, eliminate the brushing link that slurry is connected in connection procedure, it is inconsistent to avoid the slurry form caused by brushing takes, the technical issues of to influence connection effect, there is effect more outstanding particularly with the connection between forming great size ceramic biscuit, and operability is strong.
Description
Technical field
The present invention relates to ceramic technology field, more particularly to a kind of connection method of biscuit of ceramics.
Background technology
With the development of science and technology, application of the ceramics in engineering field is more and more extensive, to ceramics in individual fields
The demand of size is continuously improved.By taking silicon carbide ceramics as an example, optical system results in silicon carbide indirectly to the high request of resolution ratio
The bigbore developing direction of speculum, and just from the point of view of current current situation, large-sized monolithic carbon is manufactured using any technique
SiClx ceramics are all very difficult, therefore only select a kind of rational interconnection technique that can realize larger size silicon carbide
The preparation of ceramic mirror body.
By taking ceramics biscuits of carbonized bricks as an example, the connection method mainly used at present is that carbonaceous mixture is prepared into slurry shape
Formula, slurry are applied to by coating and wait for join domain, heated after biscuit is fixed, can be realized by the solidification of carbonaceous mixture
Then the densification of connection biscuit is realized in connection by being sintered again.When using this connection method, one side coating process itself
And the connection procedure after coating is easy to introduce bubble in bonding pad, bubble leads to the discontinuity zone of connection, influences connection effect
Fruit；On the other hand, the slurry of coating generates stress, be easy to cause since solvent volatilization causes to shrink in heat curing process
Joint face cracks, moreover, coating process is difficult to ensure connection layer thickness, causes join domain uneven.
CN 100393509 discloses a kind of ceramic joining method, and silicon carbide powder is generated polymer with ceramics to be mixed
It closes, the connection between slurry form progress ceramics is made.Slurry generates ceramic through pyrolytic, and is formed around tie point
The transition zone of close adhesion realizes the connection of ceramics with this.Although the patent in detail explained connection slurry preparation method and
Heat treatment process, but wait for joint face to how slurry is applied to, it is not described in detail, and work as and wait for that joint face area is enough
When big, ceramic connection effect will be directly affected by how connection slurry being applied on joint face.
Invention content
For the technical issues of, the present invention use following technical scheme：
The present invention provides a kind of connection method of biscuit of ceramics, and the connection method includes step：S1, it makes pottery respectively to first
Porcelain biscuit wait for connection surface and the second biscuit of ceramics wait for that connection surface carries out mechanical processing pretreatment；S2, slurry will be connected
Be attached to first biscuit of ceramics waits for that connection surface carries out tape casting；Articulamentum is formed after S3, tape casting, is fixed on
On first biscuit of ceramics；S4, second biscuit of ceramics is waited for that connection surface is docked with the articulamentum, makes institute
Articulamentum solidification is stated, realizes the connection between first biscuit of ceramics and second biscuit of ceramics.
In some embodiments, the connection slurry is prepared with silicon carbide micro-powder through ball milling by resin.
In some embodiments, selected resin in acrylic resin, vinyl acetate resin or phenolic resin at least
It is a kind of.
In some embodiments, it is described mechanical processing pretreatment include respectively by the first biscuit of ceramics wait for connection surface and
Second biscuit of ceramics waits for that connection surface is processed into plane, and the cleaning of volatile solvent is used in combination to be dried after the floating ash of connection surface.
In some embodiments, respectively to the first biscuit of ceramics wait for connection surface and the second biscuit of ceramics wait for connection table
After face carries out mechanical processing pretreatment, in the tree for waiting for connection surface brushing quality a concentration of 5%~15% of the first biscuit of ceramics
Lipoprotein solution.
In some embodiments, the thickness that articulamentum is formed after the tape casting is 0.5mm~3mm.
It is described that second biscuit of ceramics is waited for that connection surface is docked with the articulamentum in some embodiments
When apply pressure, the pressure limit of application is 0.01MPa~0.5MPa.
In some embodiments, second biscuit of ceramics is waited for that connection surface applies pressure with the articulamentum and carries out
After docking, 0.5h~4h, the articulamentum solidification are kept the temperature under 120 DEG C~200 DEG C temperature conditions.
In some embodiments, wait for that connection surface is cast will connect that slurry is attached to first biscuit of ceramics
Before molding, vacuumize process is carried out to connection slurry.
It hangs in some embodiments, after tape casting more than for 24 hours, or is dried under 35 DEG C~50 DEG C temperature conditions naturally
5h~10h makes connection sizing material forming, forms articulamentum, and be fixed on first biscuit of ceramics.
The beneficial effects of the present invention are：A kind of connection method of biscuit of ceramics is provided, especially for large-size ceramic element
The connection of base has good effect.Slurry is connected by application and carries out tape casting, is eliminated and is connected slurry in connection procedure
Brushing link, avoid because brush take caused by slurry form it is inconsistent, the technical issues of to influence connection effect；This
In the connection method of invention, after special connection slurry is applied by special method, avoid because connection slurry thickness is uneven
It is even and the case where lead to articulamentum entrained air bubbles, improve the reliability of connection, moreover it is possible to realize freely controlling for connection layer thickness；
In addition, connection method through the invention, extends the timeliness of connection slurry, movement and docking to forming great size ceramic biscuit
Process provides enough operating times, has effect more outstanding for the connection between forming great size ceramic biscuit, and can
Strong operability.
Description of the drawings
Fig. 1 is the connection diagram of silicon carbide biscuit in the specific embodiment of the invention 1.
Fig. 2 is the micro-structure diagram after silicon carbide joining in green state in the specific embodiment of the invention 1.
A, the first silicon carbide biscuit B, the second silicon carbide biscuit C, articulamentum
D, the first silicon carbide densification green body E, the second silicon carbide are densified green body
F, it is densified articulamentum
Specific implementation mode
In order to make the purpose , technical scheme and advantage of the present invention be clearer, below in conjunction with attached drawing and specific implementation
Example, the present invention will be described in further detail.It should be appreciated that specific embodiment described herein is only explaining this hair
It is bright, but not to limit the present invention.
The present invention provides a kind of connection method of biscuit of ceramics, when carrying out biscuit of ceramics connection, first by two pieces of ceramics
Biscuit waits for that joint face is machined, and makes to wait for keep good cooperation between joint face, then by the connection slurry of configuration
One piece of biscuit of ceramics waits for carrying out tape casting on joint face wherein, molding thickness according to slurry form and biscuit state and
It is fixed.After connecting sizing material forming, it is considered as an entirety with biscuit of ceramics, that is, completes connection slurry and one of ceramics
The connection of biscuit.And since molding thickness is uniform, connection slurry after molding waits for joint face no-float with another block of biscuit.
Then by the biscuit with connection slurry, wait for that joint face docks with another block of biscuit, when docking can apply certain pressure, so
So that connection slurry (articulamentum) is cured by heating or other modes afterwards, complete joining in green state, finally completes pottery by being sintered again
The integration of porcelain.
In specific embodiment, the connection method of biscuit of ceramics of the present invention includes step：
S1, respectively to the first biscuit of ceramics wait for connection surface and the second biscuit of ceramics wait for connection surface carry out machinery plus
Work pre-processes, such as by digital control processing or manual polishing, makes to wait for keep good cooperation between joint face；Preferred embodiment party
In formula, mechanical processing pretreatment include respectively by the first biscuit of ceramics wait for connection surface and the second biscuit of ceramics wait for connection table
Plane is processed into face, and the cleaning of volatile solvent is used in combination to be dried after the floating ash of connection surface, volatile solvent can be selected from water,
Ethyl alcohol, acetone etc.；Wait for that the resin of connection surface brushing quality a concentration of 5%~15% is molten in the first biscuit of ceramics after drying
Liquid can be effectively prevent when carrying out tape casting, and the first biscuit of ceramics green body excessively sucks the liquid component in connection slurry, and
Be conducive to improve connection effect.
S2, by connect slurry be attached to the first biscuit of ceramics wait for connection surface carry out tape casting.When biscuit of ceramics is
When silicon carbide biscuit, connection slurry be prepared through ball milling with silicon carbide micro-powder by resin, specifically, connect slurry by resin,
Silicon carbide micro-powder, the volatile solvent of soluble resin and curing agent etc. are prepared through ball milling together, wherein resin is optional
From at least one of acrylic resin, vinyl acetate resin or phenolic resin etc., the volatile solvent of soluble resin can be
Ethyl alcohol or water etc., curing agent can be hexa or ethylenediamine etc..In preferred embodiment, to connect the quality of slurry
Percentage composition is 100%, and the mass content for connecting resin in slurry is 25%~40%, and the mass content of silicon carbide micro-powder is
15%~25%, the mass content of solvent and curing agent etc. is 35%~60%.In preferred embodiment, silicon carbide micro-powder
Granularity is at least close with one of powder size of silicon carbide biscuit.When biscuit of ceramics is other biscuits, can be used corresponding
Ceramic is mixed with other binders and connect slurry, other binders can be that acrylic resin curable hot melt bonds
At least one of agent, epoxy resin, vinyl acetate based polyalcohol.In addition ceramic can not also be added, and (such as silicon carbide is micro-
Powder etc.), connection slurry directly is prepared using above-mentioned binder, the connection of connection method realization biscuit of ceramics through the invention.
Directly by tape casting on connection slurry wherein one block of biscuit, it both ensure that the consistency of connection layer thickness, avoid simultaneously
The introducing of bubble during slurry applies, while also completing the good combination of connection slurry and one of biscuit.Preferably
In embodiment, the slurry thickness of tape casting is 0.5mm~3mm.In preferred embodiment, it is attached to slurry will be connected
First biscuit of ceramics wait for connection surface carry out tape casting before, to connection slurry carry out vacuumize process, can be effective
Bubble in removal connection slurry, avoids articulamentum from the case where bubble is mingled with occur.
Articulamentum is formed after S3, tape casting, is fixed on the first biscuit of ceramics；Specifically, after tape casting, it will be attached
The first biscuit of ceramics for connection slurry, hangs naturally more than for 24 hours, or 5h~10h is dried under 35 DEG C~50 DEG C temperature conditions,
Make connection sizing material forming, forms articulamentum, and be fixed on the first biscuit of ceramics；The side of articulamentum and the first biscuit of ceramics
Green state joining, the other side are exposed in air, hang naturally or drying course in, connect the volatilization in slurry (i.e. articulamentum)
Property liquid can by be exposed to air side volatilization, complete connect before so that volatile liquid is volatilized, both ensure that articulamentum
Stable molding, while avoid connection post cure processes in heating volatilization caused by shrinkage stress generation, effectively avoid
The cracking of joint face.
S4, the second biscuit of ceramics is waited for that connection surface is docked with articulamentum, makes connection slurry curing, realize first
Connection between biscuit of ceramics and the second biscuit of ceramics；Specifically, waiting for that connection surface makes with articulamentum to the second biscuit of ceramics
With fixture or apply pressure by counterweight to be docked, it is preferably 0.01MPa~0.5MPa to apply stressed pressure limit, then
0.5h~4h is kept the temperature under 120 DEG C~200 DEG C temperature conditions, connection slurry (articulamentum) is made to cure, and realizes the first biscuit of ceramics
And the second connection between biscuit of ceramics.
The biscuit of ceramics connection method of the present invention is flowed especially by will first connect slurry with one of biscuit of ceramics
Prolong molding, eliminate the brushing link for connecting slurry in connection procedure, avoids the slurry form caused by brushing takes and differ
It causes, the technical issues of to influence connection effect；In the connection method of the present invention, special connection slurry passes through special method
After application, avoid because connect slurry thickness it is uneven due to lead to articulamentum entrained air bubbles the case where, improve the reliable of connection
Property, moreover it is possible to realize freely controlling for connection layer thickness；In addition, connection method through the invention, extend connection slurry when
Effect property, movement and docking operation to forming great size ceramic biscuit provide enough operating times, for forming great size ceramic biscuit
Between connection there is effect more outstanding, and operability is strong.
It is described in detail especially by following embodiment.
Embodiment 1
In conjunction with shown in Fig. 1, A, B are respectively two blocks of silicon carbide biscuits, are denoted as the first silicon carbide biscuit and the second carbonization respectively
Silicon biscuit, connection method between the two are specific as follows：
(1) processing of silicon carbide biscuit
First by A, B's waits for that joint face is processed into plane, is dried after the floating ash in ethyl alcohol cleaning surface is used in combination.In external coating matter
The thermoplastic phenolic resin solution that score is 7% is measured, it is spare.
(2) preparation of slurry is connected
Prepare and the identical silicon carbide micro-powder of A, B biscuit grain composition 20%；Thermoplastic phenolic resin 30%；Acrylamide
5%；Ethyl alcohol 30%；Polyethylene glycol 200 (PEG 200) 5%, hexa 10%；The above ratio is volume ratio, and percentage contains
The summation of amount is 100%.After above-mentioned substance is mixed, silicon carbide abrading-ball is added, ball-milling treatment 20h is prepared into certain viscous
The connection slurry of degree.
(3) tape casting of slurry is connected
First silicon carbide biscuit A is waited for that connection is face-up, edge waits for that joint face outer profile fixes poly (methyl methacrylate) plate, organic glass
Glass plate height, which is higher by, waits for joint face 1mm.By waiting on joint face for the connection slurry prepared the first silicon carbide biscuit A of injection, so
It is scraped afterwards along poly (methyl methacrylate) plate using scraper by slurry is connected, keeps connection slurry evenly laid out in the first silicon carbide biscuit A
Wait on joint face, to complete tape casting, connection sizing material forming thickness is 1mm.Naturally it hangs for 24 hours, connection slurry is natural
Drying and moulding forms articulamentum C, A and C is integrated into a whole at this time, can move simultaneously.
(4) it connects
Second silicon carbide biscuit B is waited for that joint face sets docking location, the reserved gaps the 5mm adjustment in centre with articulamentum C
Biscuit position.Then the second silicon carbide biscuit B is waited for that joint face is slowly moved to and is bonded with C, and apply the pressure of 0.05MPa
Power.Connection biscuit is placed in heating furnace in the state of keeping pressure and is heated to 160 DEG C, articulamentum cures at this time, to complete
Connection between silicon carbide biscuit.The densification of connection ceramics is subsequently realized by being sintered again.Join domain after densification is aobvious
Micro-structure is as shown in Fig. 2, the first silicon carbide biscuit A, the second silicon carbide biscuit B and articulamentum C are respectively formed the first carbon after sintering
SiClx is densified green body D, the second silicon carbide densification green body E and densification articulamentum F, and as seen from the figure, densification articulamentum F is thick
Degree is uniform, is well combined with green body, bubble-free or cracking phenomena.
Embodiment 2
Substantially the same manner as Example 1, the difference is that in step (3), the connection slurry thickness of tape casting is 3mm, so
The first silicon carbide biscuit A is placed in the articulamentum C after tape casting in 50 DEG C of environment simultaneously afterwards and places 5h, is then taken out,
It is identical as room temperature to hang temperature.In step (4), the second silicon carbide biscuit B to wait for that joint face is bonded with articulamentum C after-applied
Connection biscuit is placed in heating furnace and is heated to 200 DEG C, to complete silicon carbide by the pressure of 0.5MPa in the state of keeping pressure
Connection between biscuit.
The specific implementation mode of the above present invention, is not intended to limit the scope of the present invention..It is any according to this hair
Various other corresponding changes made by bright technical concept and deformation, should be included in the protection model of the claims in the present invention
In enclosing.
Claims (10)
1. a kind of connection method of biscuit of ceramics, which is characterized in that the connection method includes step：
S1, respectively to the first biscuit of ceramics wait for connection surface and the second biscuit of ceramics to wait for that connection surface be machined pre-
Processing；
S2, by connect slurry be attached to first biscuit of ceramics wait for connection surface carry out tape casting；
Articulamentum is formed after S3, tape casting, is fixed on first biscuit of ceramics；
S4, second biscuit of ceramics is waited for that connection surface is docked with the articulamentum, the articulamentum is made to cure, it is real
Existing connection between first biscuit of ceramics and second biscuit of ceramics.
2. connection method as described in claim 1, which is characterized in that the connection slurry is by resin and silicon carbide micro-powder through ball
Mill is prepared.
3. connection method as claimed in claim 2, which is characterized in that selected resin is selected from acrylic resin, vinyl acetate tree
At least one of fat or phenolic resin.
4. connection method as described in claim 1, which is characterized in that the mechanical processing pretreatment includes respectively by the first pottery
Porcelain biscuit wait for connection surface and the second biscuit of ceramics wait for that connection surface is processed into plane, be used in combination the cleaning of volatile solvent to wait for
It is dried after the floating ash of connection surface.
5. preparation method as described in claim 1, which is characterized in that wait for connection surface and to the first biscuit of ceramics respectively
Two biscuit of ceramics after connection surface carries out mechanical processing pretreatment, wait for connection surface brushing quality in the first biscuit of ceramics
A concentration of 5%~15% resin solution.
6. preparation method as described in claim 1, which is characterized in that the thickness of formation articulamentum is after the tape casting
0.5mm~3mm.
7. preparation method as described in claim 1, which is characterized in that described that second biscuit of ceramics is waited for connection surface
Apply pressure when being docked with the articulamentum, the pressure limit of application is 0.01MPa~0.5MPa.
8. preparation method as claimed in claim 7, which is characterized in that second biscuit of ceramics is waited for connection surface and institute
It states articulamentum to apply after pressure docked, 0.5h~4h is kept the temperature under 120 DEG C~200 DEG C temperature conditions, the articulamentum is solid
Change.
9. preparation method as described in claim 1, which is characterized in that be attached to first biscuit of ceramics slurry will be connected
Wait for connection surface carry out tape casting before, to connection slurry carry out vacuumize process.
10. preparation method as described in claim 1, which is characterized in that hung naturally after tape casting more than for 24 hours, or 35
DEG C~50 DEG C of temperature conditions under dry 5h~10h, make connection sizing material forming, form articulamentum, and be fixed on first ceramics
On biscuit.
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| CN201810132413.3A CN108358642B (en) | 2018-02-09 | 2018-02-09 | A kind of connection method of biscuit of ceramics |
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| CN201810132413.3A CN108358642B (en) | 2018-02-09 | 2018-02-09 | A kind of connection method of biscuit of ceramics |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110193882A (en) * | 2019-04-25 | 2019-09-03 | 长沙市西欧电子科技有限公司 | A kind of method of injection moulding production large special ceramic |
| CN110372258A (en) * | 2019-07-08 | 2019-10-25 | 杭州三耐环保科技股份有限公司 | A kind of stirred tank and preparation method thereof |
| CN115074034A (en) * | 2022-06-24 | 2022-09-20 | 华中科技大学 | Adhesive for additive manufacturing of ceramic parts and adhesive method |
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| CN115074034A (en) * | 2022-06-24 | 2022-09-20 | 华中科技大学 | Adhesive for additive manufacturing of ceramic parts and adhesive method |
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| Publication number | Publication date |
|---|---|
| CN108358642B (en) | 2019-11-05 |
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