CN108705775A - Preparation method, 3D printing method and the 3D printer of Ceramic precursor resin - Google Patents
Preparation method, 3D printing method and the 3D printer of Ceramic precursor resin Download PDFInfo
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- CN108705775A CN108705775A CN201810497779.0A CN201810497779A CN108705775A CN 108705775 A CN108705775 A CN 108705775A CN 201810497779 A CN201810497779 A CN 201810497779A CN 108705775 A CN108705775 A CN 108705775A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C64/00—Additive manufacturing, i.e. manufacturing of three-dimensional [3D] objects by additive deposition, additive agglomeration or additive layering, e.g. by 3D printing, stereolithography or selective laser sintering
- B29C64/10—Processes of additive manufacturing
- B29C64/106—Processes of additive manufacturing using only liquids or viscous materials, e.g. depositing a continuous bead of viscous material
- B29C64/124—Processes of additive manufacturing using only liquids or viscous materials, e.g. depositing a continuous bead of viscous material using layers of liquid which are selectively solidified
- B29C64/129—Processes of additive manufacturing using only liquids or viscous materials, e.g. depositing a continuous bead of viscous material using layers of liquid which are selectively solidified characterised by the energy source therefor, e.g. by global irradiation combined with a mask
- B29C64/135—Processes of additive manufacturing using only liquids or viscous materials, e.g. depositing a continuous bead of viscous material using layers of liquid which are selectively solidified characterised by the energy source therefor, e.g. by global irradiation combined with a mask the energy source being concentrated, e.g. scanning lasers or focused light sources
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C64/00—Additive manufacturing, i.e. manufacturing of three-dimensional [3D] objects by additive deposition, additive agglomeration or additive layering, e.g. by 3D printing, stereolithography or selective laser sintering
- B29C64/30—Auxiliary operations or equipment
- B29C64/307—Handling of material to be used in additive manufacturing
- B29C64/314—Preparation
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B33—ADDITIVE MANUFACTURING TECHNOLOGY
- B33Y—ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
- B33Y10/00—Processes of additive manufacturing
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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
- C04B35/5603—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 with a well-defined oxygen content, e.g. oxycarbides
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- 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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- 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
- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
- C04B2235/30—Constituents and secondary phases not being of a fibrous nature
- C04B2235/48—Organic compounds becoming part of a ceramic after heat treatment, e.g. carbonising phenol resins
- C04B2235/483—Si-containing organic compounds, e.g. silicone resins, (poly)silanes, (poly)siloxanes or (poly)silazanes
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
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- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/65—Aspects relating to heat treatments of ceramic bodies such as green ceramics or pre-sintered ceramics, e.g. burning, sintering or melting processes
- C04B2235/656—Aspects relating to heat treatments of ceramic bodies such as green ceramics or pre-sintered ceramics, e.g. burning, sintering or melting processes characterised by specific heating conditions during heat treatment
- C04B2235/6562—Heating rate
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- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/65—Aspects relating to heat treatments of ceramic bodies such as green ceramics or pre-sintered ceramics, e.g. burning, sintering or melting processes
- C04B2235/656—Aspects relating to heat treatments of ceramic bodies such as green ceramics or pre-sintered ceramics, e.g. burning, sintering or melting processes characterised by specific heating conditions during heat treatment
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- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/65—Aspects relating to heat treatments of ceramic bodies such as green ceramics or pre-sintered ceramics, e.g. burning, sintering or melting processes
- C04B2235/656—Aspects relating to heat treatments of ceramic bodies such as green ceramics or pre-sintered ceramics, e.g. burning, sintering or melting processes characterised by specific heating conditions during heat treatment
- C04B2235/6567—Treatment time
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Abstract
Disclose a kind of preparation method of light sensitive ceramics presoma resin, ceramic 3D printing method and ceramic 3D printer.By the way that ceramic forerunner oligomer is mixed with photoinitiator and light absorber and crosslinking agent and other additives, adjust material mixture ratio, it is prepared for light sensitive ceramics presoma resin, the quick high accuracy printing shaping of ceramic material is realized using continuous quickly face exposure printing technique later, then by aftertreatment technologies such as cracking, high-precision high temperature resistant SiCO ceramic members is realized and are made.
Description
Technical field
The invention belongs to 3D printing technique field, especially a kind of preparation method of light sensitive ceramics presoma resin, ceramics
3D printing method and ceramic 3D printer.
Background technology
Ceramic material has many advantages, such as high intensity, high rigidity, good insulating, high temperature resistant and corrosion-resistant, in aerospace, life
Many fields such as object medical treatment, automobile making, electronics industry have huge application prospect.But just due to its hardness height, brittleness is big,
The processing and forming for causing ceramic part is difficult.
Traditional machining process is difficult to manufacture complex-shaped ceramic part, is also easy to generate hair in process
The defects of thorn and micro-crack.And existing shaping method of ceramics such as the methods of dry-press process, plastic forming and injection forming, it can only
It processes simple in structure or ceramic could be prepared by specific mold, cannot be satisfied growing market needs,
Therefore new ceramics forming technique-ceramics 3D printing technique has obtained rapid development.
Currently, existing ceramics 3D printing technique is in, 4 classes can be roughly divided into according to the form of printing raw material：1. base
In the increases material manufacturing technology of powder material：3 D-printing (Three-Dimensional Printing, 3DP), selective laser sintering
(Selective Laser Sintering, SLS)；2. the increases material manufacturing technology based on silk material：Fusion sediment moulding (Fused
Deposition Modeling, FDM)；3. the increases material manufacturing technology based on sheet material：Layer separated growth (Laminated
Objected Manufacturing, LOM)；4. the increases material manufacturing technology based on liquid material：Stereolithography (Stereo
Lithography Apparatus, SLA).
Existing various ceramic 3D printing technique process principles are different, used raw material and post processing mode also phase not to the utmost
Together, so the various aspects such as speed, precision, surface quality mechanical property of printing part are also different, wherein being printed with photocuring
Precision fair speed it is very fast, the Forming Quality and surface roughness having had compared to other Method of printings.
However since existing photosensitive ceramic slurry material itself in the market is compared to resin its light-cured performance, rheological characteristic
It is larger Deng all difference, and higher viscosity, weaker light-cured performance are unfavorable for slurry curing and shape very much, different powder types,
The difference of grain size can also influence its solidification.In degreasing and sintering process, frequently can lead to ceramic component generate hole, crackle and
Ununiform shrinkage, and this is the main reason for causing the low intensity of photocuring part and poor reliability.
And ceramic forerunner conversion ceramic technology is a kind of new method preparing ceramic material to grow up in recent years, is led to
It crosses and prepares ceramic forerunner photo-curing material, using the printing precision and print speed advantage of photocuring 3D printer, consolidate
Change three-dimensionally shaped, then gained precursor construction be subjected to cracking processing, occur during this organic molecule exclude, inside points
Subchain scission of link, structural rearrangement ultimately generate unformed ceramic component.It is compared with the ceramic slurry of traditional photosensitive, it breaches biography
The limitation of system ceramic preparation, mainly has the characteristics that：(1) material can be designed on molecular scale, (2)
The ceramics of high-performance offbeat form are prepared, (3) realize the near-net-shape of ceramics, and (4) pyrolysis temperature is low, and (5) are high temperatures
It can be good.
However due to the limitation of photocuring printing type, printing of the existing ceramic forerunner printing technique in the directions X/Y
Precision can accomplish smaller, and have apparent printing step effect in Z-direction, this seriously affected ceramic member quality and
Formed precision.These structures have apparent step effect on Print direction, cannot achieve the printing of higher precision.
Invention content
For problems of the prior art, the present invention proposes a kind of light sensitive ceramics presoma for ceramic 3D printing
The preparation method and its active control system of resin, the present invention considers the influence of model perturbation, better to obtain robustness
Active Control Method.
The purpose of the present invention is being achieved by the following technical programs, according to an aspect of the present invention, one kind is for making pottery
The preparation method of the light sensitive ceramics presoma resin of porcelain 3D printing includes the following steps：
In first step：In the photoinitiator to container for weighing 1-3 parts by weight, the ceramics of 50-75 parts by weight are added
Presoma oligomer, the photo-curing monomer heating stirring for adding 25-50 parts by weight form premix liquid, wherein the pottery
Porcelain presoma oligomer includes the SiCO photocuring presoma monomers containing vinyl, sulfydryl and/or mercapto propyl group；
In second step：After the premix abundant heating stirring of liquid makes photoinitiator be substantially soluble in premix liquid, 1-3 is added
Parts by weight crosslinking agent, 1-3 parts by weight light absorber and additive are sufficiently stirred to obtain mixing liquid；
In third step：Above-mentioned mixing liquid is vacuumized to obtain light sensitive ceramics presoma resin.
In the described method, ultrasonic activation is carried out while stirring in first step and/or in second step.
According to another aspect of the present invention, a kind of ceramic 3D printing method includes the following steps：
In first step：The light sensitive ceramics presoma resin is put into resin storage tank；
In second step：Resin storage tank is equipped with the ventilative lyophoby slot bottom in print zone, inhibits gas and the light sensitive ceramics presoma
Resin gas-liquid contact, curing light source via the light sensitive ceramics presoma resin described in micro mirror array photocuring, feed arrangement with
0.8-1s/ interval velocities are formed continuously ceramic forerunner precuring part；
In third step：Ceramic forerunner precuring part be put into tube furnace argon gas atmosphere protection under is sintered, 2 DEG C/
Min heatings are heated to respectively keeping 1 hour at 200 DEG C and 1000 DEG C respectively under 1000 DEG C of heating curves, then using 3 DEG C/
The cooling rate of min is cooled to room temperature to form ceramic member.
In the described method, tube furnace includes annealing furnace and carburizer.
In the described method, resin rooved face is nanostructure, and the nanostructure size is less than the light of curing light source
The half of wavelength.
According to another aspect of the invention, a kind of ceramic 3D printer, including,
Curing light source is used to send out solidification light,
Micro mirror array is used to the solidification light controllably irradiating the light sensitive ceramics presoma resin,
The surface of resin storage tank, the resin storage tank for accommodating the light sensitive ceramics presoma resin is nanostructure, the tree
Fat slot includes the ventilative lyophoby slot bottom of molding room's frame and print zone, before being located at the light sensitive ceramics of the ventilative lyophoby slot bottom in print zone
Body resin gas-liquid contact under inhibition gas effect is driven,
Supporting plate, for carrying the supporting plate of ceramic forerunner precuring part via the ceramics precursor after feed arrangement movement solidification
Body precuring part.
In the ceramic 3D printer, the resin storage tank is connected to vertical side support plate via resin storage tank bracket
On.
In the ceramic 3D printer, curing light source and micro mirror array are arranged on pedestal.
In the ceramic 3D printer, supporting plate carrying ceramic forerunner precuring part new cured layer and be located at beat
Formation inhibits area between printing the light sensitive ceramics presoma resin that area breathes freely on lyophoby slot bottom.
In the ceramic 3D printer, ceramic 3D printer is equipped with the controller of control print progress, the control
Device includes memory, and the memory includes one or more read only memory ROMs, random access memory ram, flash
Device or Electrical Erasable programmable read only memory EEPROM.
The present invention exposes the aftertreatment technologies such as printing technique printing shaping and cracking by continuous quickly face, realizes high-precision
The ceramic member of degree makes, and can be designed on molecular scale to material, prepares the ceramics of high-performance offbeat form, realizes
The near-net-shape of ceramics, pyrolysis temperature is low, and high-temperature behavior is good, and especially overcomes the printing step effect of printing Z-direction
It answers, optimizes the surface roughness and intensity of ceramic member, improve the quality and formed precision of ceramic member.
Above description is only the general introduction of technical solution of the present invention, in order to make the technological means of the present invention clearer
Understand, reach the degree that those skilled in the art can be implemented in accordance with the contents of the specification, and in order to allow the present invention
Above and other objects, features and advantages can be clearer and more comprehensible, below with the present invention specific implementation mode illustrate
Explanation.
Description of the drawings
By reading the detailed description in hereafter preferred embodiment, the present invention various other advantage and benefit
Those of ordinary skill in the art will become clear.Figure of description only for the purpose of illustrating preferred embodiments,
And it is not considered as limitation of the present invention.It should be evident that drawings discussed below is only some embodiments of the present invention,
For those of ordinary skill in the art, without creative efforts, it can also be obtained according to these attached drawings
Other attached drawings.And throughout the drawings, identical component is presented with like reference characters.
In the accompanying drawings：
Fig. 1 is the preparation side of the light sensitive ceramics presoma resin according to an embodiment of the invention for ceramic 3D printing
The step schematic diagram of method；
Fig. 2 is a kind of system of light sensitive ceramics presoma resin for ceramic 3D printing according to an embodiment of the invention
The preparation process flow schematic diagram of Preparation Method；
Fig. 3 is the step schematic diagram of ceramic 3D printing method according to an embodiment of the invention；
Fig. 4 is the sintering process curve graph of ceramic 3D printing method according to an embodiment of the invention；
Fig. 5 is the ceramic forerunner precuring part before the sintering of ceramic 3D printing method according to an embodiment of the invention
Schematic diagram；
Fig. 6 is the schematic diagram of the sintered ceramic member of ceramic 3D printing method according to an embodiment of the invention；
Fig. 7 is the structural schematic diagram of ceramic 3D printer according to an embodiment of the invention；
Fig. 8 is the resin storage tank partial schematic diagram of ceramic 3D printer according to an embodiment of the invention；
Fig. 9 is that the microcosmic Electronic Speculum surface of the ceramic member of the printing of ceramic 3D printer according to an embodiment of the invention is seen
Examine figure；
Figure 10 is macroscopical Electronic Speculum surface of the ceramic member of the printing of ceramic 3D printer according to an embodiment of the invention
Observation chart.
Wherein, 1. side support plate, 2. controllers, 3. resin storage tanks, 4. micro mirror arrays, 5. feed arrangements, 6. resin storage tank brackets,
7. pedestal, 8. curing light sources, 9. molding room's frames, 10. light-cured resins, 11. supporting plates, 12. inhibition areas, 13. new cured layers,
14. memory, the ventilative lyophoby slot bottom in 15. print zones, 16. inhibition gases.
The present invention is further explained below in conjunction with drawings and examples.
Specific implementation mode
Specific embodiments of the present invention are more fully described in 1-10 below with reference to accompanying drawings.Although showing this hair in attached drawing
Bright specific embodiment, it being understood, however, that may be realized in various forms the present invention without should be by embodiments set forth here
It is limited.It is to be able to be best understood from the present invention on the contrary, providing these embodiments, and can be by the scope of the present invention
Completely it is communicated to those skilled in the art.
It should be noted that having used some vocabulary in specification and claim to censure specific components.Ability
Field technique personnel it would be appreciated that, technical staff may call the same component with different nouns.This specification and right
It is required that not in such a way that the difference of noun is used as and distinguishes component, but differentiation is used as with the difference of component functionally
Criterion."comprising" or " comprising " as mentioned in working as in specification in the whole text and claim are an open language, therefore should be solved
It is interpreted into " including but not limited to ".Specification subsequent descriptions be implement the present invention better embodiment, so it is described description be with
For the purpose of the rule of specification, it is not limited to the scope of the present invention.Protection scope of the present invention is when regarding appended right
It is required that subject to institute's defender.
For ease of the understanding to the embodiment of the present invention, solved below in conjunction with attached drawing is further by taking specific embodiment as an example
Explanation is released, and each attached drawing does not constitute the restriction to the embodiment of the present invention.
In order to better understand, before Fig. 1 is the light sensitive ceramics according to an embodiment of the invention for ceramic 3D printing
The step schematic diagram of the preparation method of body resin is driven, as shown in Figure 1, a kind of light sensitive ceramics presoma tree for ceramic 3D printing
The preparation method of fat includes the following steps：
In first step S1：In the photoinitiator to container for weighing 1-3 parts by weight, the pottery of 50-75 parts by weight is added
Porcelain presoma oligomer, the photo-curing monomer heating stirring for adding 25-50 parts by weight form premix liquid, wherein described
Ceramic forerunner oligomer includes the SiCO photocuring presoma monomers containing vinyl, sulfydryl and/or mercapto propyl group；
In second step S2：After the premix abundant heating stirring of liquid makes photoinitiator be substantially soluble in premix liquid, it is added
1-3 parts by weight crosslinking agent, 1-3 parts by weight light absorber and additive are sufficiently stirred to obtain mixing liquid；
In third step S3：Above-mentioned mixing liquid is vacuumized to obtain light sensitive ceramics presoma resin.
Quick Ceramic precursor resin prepared by the present invention can be designed material on molecular scale, prepare high-performance
The ceramics of offbeat form realize the near-net-shape of ceramics, and pyrolysis temperature is low, and high-temperature behavior is good, and especially overcome
Print Z-direction printing step effect, optimize the surface roughness and intensity of ceramic member, improve ceramic member quality and at
Type precision.
In the preferred embodiment of method of the present invention, while stirring in first step S1 and/or in second step S2
Carry out ultrasonic activation.
For a further understanding of the present invention, Fig. 2 is according to an embodiment of the invention a kind of for ceramic 3D printing
The preparation process flow schematic diagram of the preparation method of light sensitive ceramics presoma resin weighs quality first in one embodiment
Score is the photoinitiator of 1-3%, and matter is added into container in including but not limited to 184,819, TPO etc. common initiators later
The ceramic forerunner oligomer that score is 50%-75% is measured, the photo-curing monomer that mass fraction is 50%-25% is added later,
Including but not limited to TEGDA, TPGDA, EM2380, acrylic monomers etc. form premix liquid, fully carry out heating later and stir
It mixes so that photoinitiator is substantially soluble in premix liquid, and addition mass fraction is 1-3% crosslinking agents later and mass fraction is 1-
3% light absorber and suitable additive, are sufficiently stirred, ultrasound, and after vacuumizing, it is prepared light to obtain mixed solution
Quick Ceramic precursor resin.The light sensitive ceramics presoma resin of preparation is added in photocuring printer later.
Fig. 3 is the step schematic diagram of ceramic 3D printing method according to an embodiment of the invention, a kind of ceramics 3D printing
Method includes the following steps：
In first step S1：The light sensitive ceramics presoma resin is put into resin storage tank；
In second step S2：Resin storage tank is equipped with the ventilative lyophoby slot bottom in print zone, inhibits gas and the light sensitive ceramics forerunner
Body resin gas-liquid contact, curing light source via the light sensitive ceramics presoma resin described in micro mirror array photocuring, feed arrangement with
0.8-1s/ interval velocities are formed continuously ceramic forerunner precuring part, and Fig. 5 is ceramic 3D printing according to an embodiment of the invention
The schematic diagram of ceramic forerunner precuring part before the sintering of method can intuitively understand pottery prepared by the present invention referring to Fig. 5
Porcelain presoma precuring part；
In third step S3：Ceramic forerunner precuring part is put into tube furnace to be sintered under argon gas atmosphere protection, 2
DEG C/min heatings are heated to respectively keeping at 200 DEG C and 1000 DEG C respectively under 1000 DEG C of heating curves 1 hour, then use 3
DEG C/cooling rate of min is cooled to room temperature to form ceramic member.Fig. 6 is ceramic 3D printing side according to an embodiment of the invention
The schematic diagram of the sintered ceramic member of method can intuitively understand ceramic member prepared by the present invention referring to Fig. 6, and Fig. 4 is basis
The sintering process curve graph of the ceramic 3D printing method of one embodiment of the invention, referring to Fig. 4, it will be further appreciated that of the invention
Sintering processes.
The present invention, by print processing and sintering processes, is not in the side z by the light sensitive ceramics presoma resin of preparation
To step effect, the quality and formed precision of ceramic member can be significantly improved.
In the preferred embodiment of method of the present invention, tube furnace includes annealing furnace and carburizer.
In the preferred embodiment of method of the present invention, resin rooved face is nanostructure, the nanostructure size
Less than the half of the optical wavelength of curing light source.
Fig. 7 is the structural schematic diagram of ceramic 3D printer according to an embodiment of the invention, a kind of ceramics 3D printer
Including,
Curing light source 8 is used to send out solidification light,
Micro mirror array 4 is used to the solidification light controllably irradiating the light sensitive ceramics presoma resin 10,
The surface of resin storage tank 3, the resin storage tank 3 for accommodating the light sensitive ceramics presoma resin is nanostructure, described
Resin storage tank 3 includes the ventilative lyophoby slot bottom 15 of molding room's frame 9 and print zone, the light for lyophoby slot bottom 15 of breathing freely positioned at print zone
Quick Ceramic precursor resin gas-liquid contact in the case where inhibition gas 16 acts on,
Supporting plate 11, for carrying the supporting plate 11 of ceramic forerunner precuring part via the pottery after the movement solidification of feed arrangement 5
Porcelain presoma precuring part.
For a further understanding of the present invention, in one embodiment, due to the presence of resin storage tank surface nano-structure, liquid
Ceramic forerunner curing materials and resin rooved face contact battery limit (BL) domain part become gas-liquid contact by solid-liquid contact, therefore can be with
Reduce the flow resistance during the promotion of printing part, resin filling print zone, avoids excessive drag to having printed zero
Destruction caused by part, to provide condition to improve print speed.Fabrication of nanostructures is in gas permeable material substrate surface, not shadow
It rings inhibition gas 16 and penetrates print zone slot bottom 15, to not influence to inhibit the formation in area 12.Nanostructure size is less than light source light
The half of wavelength, by the graded index effect of sub-wavelength structure, which can improve the transmitance of light.Set exposure work
Skill parameter is 0.8-1s/ layers, by the way of quickly continuously printing, can print the ceramic forerunner precuring of no layer sense
Part.
Fig. 9 is that the microcosmic Electronic Speculum surface of the ceramic member of the printing of ceramic 3D printer according to an embodiment of the invention is seen
Figure is examined, Figure 10 is macroscopical Electronic Speculum surface observation of the ceramic member of the printing of ceramic 3D printer according to an embodiment of the invention
Figure improves pottery from Fig. 9-10 as can be seen that the ceramic member that the present invention prints optimizes the surface roughness and intensity of ceramic member
The quality and formed precision of porcelain piece.
In the preferred embodiment of ceramics 3D printer of the present invention, the resin storage tank 3 is connected via resin storage tank bracket 6
In vertical side support plate 1.
In the preferred embodiment of ceramics 3D printer of the present invention, curing light source 8 and micro mirror array 4 are arranged in pedestal
On 7.
In the preferred embodiment of ceramics 3D printer of the present invention, the ceramic forerunner precuring part of the carrying of supporting plate 11
New cured layer 13 and be located between the light sensitive ceramics presoma resin 10 that print zone is breathed freely on lyophoby slot bottom 15 and form resistance
Poly- area 12.
In the preferred embodiment of ceramics 3D printer of the present invention, ceramic 3D printer is equipped with control print progress
Controller 2, the controller 2 include memory 14, and the memory 14 includes one or more read only memory ROMs, random
Access memory RAM, flash memory or Electrical Erasable programmable read only memory EEPROM.
Although embodiment of the present invention is described above in association with attached drawing, the invention is not limited in above-mentioned
Specific embodiments and applications field, above-mentioned specific embodiment are only schematical, directiveness, rather than restricted
's.Those skilled in the art are under the enlightenment of this specification and in the range for not departing from the claims in the present invention and being protected
In the case of, a variety of forms can also be made, these belong to the row of protection of the invention.
Claims (10)
1. a kind of preparation method of light sensitive ceramics presoma resin for ceramic 3D printing, the described method comprises the following steps：
In first step (S1)：In the photoinitiator to container for weighing 1-3 parts by weight, the ceramics of 50-75 parts by weight are added
Presoma oligomer, the photo-curing monomer heating stirring for adding 25-50 parts by weight form premix liquid, wherein the pottery
Porcelain presoma oligomer includes the SiCO photocuring presoma monomers containing vinyl, sulfydryl and/or mercapto propyl group；
In second step (S2)：After the premix abundant heating stirring of liquid makes photoinitiator be substantially soluble in premix liquid, 1-3 is added
Parts by weight crosslinking agent, 1-3 parts by weight light absorber and additive are sufficiently stirred to obtain mixing liquid；
In third step (S3)：Above-mentioned mixing liquid is vacuumized to obtain light sensitive ceramics presoma resin.
2. according to the method described in claim 1, it is characterized in that, preferred, in first step (S1) and/or second step
(S2) in ultrasonic activation is carried out while stirring.
3. a kind of ceramics 3D printing method, the described method comprises the following steps：
In first step (S1)：Light sensitive ceramics presoma resin as described in any one of claim 1-2 is put into resin storage tank；
In second step (S2)：Resin storage tank is equipped with the ventilative lyophoby slot bottom in print zone, inhibits gas and the light sensitive ceramics presoma
Resin gas-liquid contact, curing light source via the light sensitive ceramics presoma resin described in micro mirror array photocuring, feed arrangement with
0.8-1s/ interval velocities are formed continuously ceramic forerunner precuring part；
In third step (S3)：Ceramic forerunner precuring part be put into tube furnace argon gas atmosphere protection under is sintered, 2 DEG C/
Min heatings are heated to respectively keeping 1 hour at 200 DEG C and 1000 DEG C respectively under 1000 DEG C of heating curves, then using 3 DEG C/
The cooling rate of min is cooled to room temperature to form ceramic member.
4. according to the method described in claim 3, it is characterized in that, tube furnace includes annealing furnace and carburizer.
5. according to the method described in claim 3, it is characterized in that, resin rooved face be nanostructure, the nanostructure ruler
The half of the very little optical wavelength less than curing light source.
6. a kind of ceramics 3D printer, it is characterised in that：It is described ceramics 3D printer include,
Curing light source (8), is used to send out solidification light,
Micro mirror array (4) is used to controllably irradiating the solidification light into the photosensitive pottery as described in any one of claim 1-2
Porcelain presoma resin (10),
The surface of resin storage tank (3), the resin storage tank (3) for accommodating the light sensitive ceramics presoma resin is nanostructure, described
Resin storage tank (3) includes the ventilative lyophoby slot bottom (15) of molding room's frame (9) and print zone, is located at the ventilative lyophoby slot bottom (15) in print zone
The light sensitive ceramics presoma resin inhibition gas (16) act under gas-liquid contact,
Supporting plate (11), after the supporting plate (11) for carrying ceramic forerunner precuring part cures via feed arrangement (5) is mobile
Ceramic forerunner precuring part.
7. ceramics 3D printer according to claim 6, which is characterized in that the resin storage tank (3) is via resin storage tank bracket
(6) it is connected in vertical side support plate (1).
8. ceramics 3D printer according to claim 6, which is characterized in that curing light source (8) and micro mirror array (4) arrangement
On pedestal (7).
9. ceramics 3D printer according to claim 6, which is characterized in that the ceramic forerunner of supporting plate (11) carrying is pre- solid
Change the new cured layer (13) of part and is located at the light sensitive ceramics presoma resin (10) that print zone is breathed freely on lyophoby slot bottom (15)
Between formed inhibition area (12).
10. it is according to claim 6 ceramics 3D printer, which is characterized in that ceramic 3D printer be equipped with control print into
The controller (2) of journey, the controller (2) include memory (14), and the memory (14), which includes that one or more is read-only, deposits
Reservoir ROM, random access memory ram, flash memory or Electrical Erasable programmable read only memory EEPROM.
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110028639A (en) * | 2019-04-17 | 2019-07-19 | 厦门理工学院 | A kind of photosensitivity Zr-B-Si-C ceramic forerunner and its in-situ preparation method |
| CN110078518A (en) * | 2019-04-17 | 2019-08-02 | 厦门理工学院 | A kind of ZrB2Based ultra-high temperature ceramic structure and its photocuring 3D printing method and apparatus |
| CN110524671A (en) * | 2019-09-16 | 2019-12-03 | 广东工业大学 | A kind of ceramics 3D printing device |
| CN111763086A (en) * | 2019-03-12 | 2020-10-13 | 西安交通大学 | Piezoelectric ceramic composite material slurry system, preparation method and 3D printing method |
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2018
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111763086A (en) * | 2019-03-12 | 2020-10-13 | 西安交通大学 | Piezoelectric ceramic composite material slurry system, preparation method and 3D printing method |
| CN110028639A (en) * | 2019-04-17 | 2019-07-19 | 厦门理工学院 | A kind of photosensitivity Zr-B-Si-C ceramic forerunner and its in-situ preparation method |
| CN110078518A (en) * | 2019-04-17 | 2019-08-02 | 厦门理工学院 | A kind of ZrB2Based ultra-high temperature ceramic structure and its photocuring 3D printing method and apparatus |
| CN110028639B (en) * | 2019-04-17 | 2021-09-10 | 厦门理工学院 | Photosensitive Zr-B-Si-C ceramic precursor and in-situ preparation method thereof |
| CN110078518B (en) * | 2019-04-17 | 2021-09-10 | 厦门理工学院 | ZrB2Base ultrahigh-temperature ceramic structure and photocuring 3D printing method and device thereof |
| CN110524671A (en) * | 2019-09-16 | 2019-12-03 | 广东工业大学 | A kind of ceramics 3D printing device |
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