CN108083777A - A kind of preparation method of photocuring 3D printing Al-base ceramic slurry and ceramic core - Google Patents
A kind of preparation method of photocuring 3D printing Al-base ceramic slurry and ceramic core Download PDFInfo
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- CN108083777A CN108083777A CN201711107565.XA CN201711107565A CN108083777A CN 108083777 A CN108083777 A CN 108083777A CN 201711107565 A CN201711107565 A CN 201711107565A CN 108083777 A CN108083777 A CN 108083777A
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- Prior art keywords
- ceramic
- printing
- photocuring
- slurry
- core
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- 239000000919 ceramic Substances 0.000 title claims abstract description 117
- 238000010146 3D printing Methods 0.000 title claims abstract description 52
- 238000000016 photochemical curing Methods 0.000 title claims abstract description 48
- 239000002002 slurry Substances 0.000 title claims abstract description 45
- 238000002360 preparation method Methods 0.000 title claims abstract description 7
- 239000000843 powder Substances 0.000 claims abstract description 39
- 239000011347 resin Substances 0.000 claims abstract description 36
- 229920005989 resin Polymers 0.000 claims abstract description 36
- 239000002245 particle Substances 0.000 claims abstract description 12
- 239000000654 additive Substances 0.000 claims abstract description 5
- 230000000996 additive effect Effects 0.000 claims abstract description 5
- 238000000034 method Methods 0.000 claims description 28
- 239000003795 chemical substances by application Substances 0.000 claims description 24
- 238000004321 preservation Methods 0.000 claims description 13
- 238000010792 warming Methods 0.000 claims description 13
- 239000002518 antifoaming agent Substances 0.000 claims description 11
- 235000015895 biscuits Nutrition 0.000 claims description 11
- 239000002270 dispersing agent Substances 0.000 claims description 11
- FIHBHSQYSYVZQE-UHFFFAOYSA-N 6-prop-2-enoyloxyhexyl prop-2-enoate Chemical compound C=CC(=O)OCCCCCCOC(=O)C=C FIHBHSQYSYVZQE-UHFFFAOYSA-N 0.000 claims description 10
- NIXOWILDQLNWCW-UHFFFAOYSA-M Acrylate Chemical compound [O-]C(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-M 0.000 claims description 9
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims description 9
- 239000000203 mixture Substances 0.000 claims description 8
- 238000003756 stirring Methods 0.000 claims description 8
- 239000000463 material Substances 0.000 claims description 7
- 229910052594 sapphire Inorganic materials 0.000 claims description 7
- 238000005245 sintering Methods 0.000 claims description 7
- DAKWPKUUDNSNPN-UHFFFAOYSA-N Trimethylolpropane triacrylate Chemical compound C=CC(=O)OCC(CC)(COC(=O)C=C)COC(=O)C=C DAKWPKUUDNSNPN-UHFFFAOYSA-N 0.000 claims description 6
- 238000001354 calcination Methods 0.000 claims description 6
- 229910052593 corundum Inorganic materials 0.000 claims description 6
- ZDHCZVWCTKTBRY-UHFFFAOYSA-N omega-Hydroxydodecanoic acid Natural products OCCCCCCCCCCCC(O)=O ZDHCZVWCTKTBRY-UHFFFAOYSA-N 0.000 claims description 6
- 229920002635 polyurethane Polymers 0.000 claims description 6
- 239000004814 polyurethane Substances 0.000 claims description 6
- 229910001845 yogo sapphire Inorganic materials 0.000 claims description 6
- 238000001035 drying Methods 0.000 claims description 5
- 239000011148 porous material Substances 0.000 claims description 5
- 238000004140 cleaning Methods 0.000 claims description 4
- 238000010438 heat treatment Methods 0.000 claims description 3
- 238000005520 cutting process Methods 0.000 claims description 2
- CERQOIWHTDAKMF-UHFFFAOYSA-M Methacrylate Chemical compound CC(=C)C([O-])=O CERQOIWHTDAKMF-UHFFFAOYSA-M 0.000 claims 1
- 239000007787 solid Substances 0.000 abstract description 10
- 239000002585 base Substances 0.000 description 13
- 239000002994 raw material Substances 0.000 description 11
- 238000002156 mixing Methods 0.000 description 8
- 238000001816 cooling Methods 0.000 description 7
- 239000000243 solution Substances 0.000 description 7
- UFWIBTONFRDIAS-UHFFFAOYSA-N Naphthalene Chemical compound C1=CC=CC2=CC=CC=C21 UFWIBTONFRDIAS-UHFFFAOYSA-N 0.000 description 6
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 6
- ZDQNWDNMNKSMHI-UHFFFAOYSA-N 1-[2-(2-prop-2-enoyloxypropoxy)propoxy]propan-2-yl prop-2-enoate Chemical compound C=CC(=O)OC(C)COC(C)COCC(C)OC(=O)C=C ZDQNWDNMNKSMHI-UHFFFAOYSA-N 0.000 description 4
- 229920002472 Starch Polymers 0.000 description 4
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 4
- ZJCCRDAZUWHFQH-UHFFFAOYSA-N Trimethylolpropane Chemical class CCC(CO)(CO)CO ZJCCRDAZUWHFQH-UHFFFAOYSA-N 0.000 description 4
- 238000001746 injection moulding Methods 0.000 description 4
- 238000007639 printing Methods 0.000 description 4
- 239000000377 silicon dioxide Substances 0.000 description 4
- 235000019698 starch Nutrition 0.000 description 4
- 239000008107 starch Substances 0.000 description 4
- 239000007983 Tris buffer Substances 0.000 description 3
- QCWXUUIWCKQGHC-UHFFFAOYSA-N Zirconium Chemical compound [Zr] QCWXUUIWCKQGHC-UHFFFAOYSA-N 0.000 description 3
- 239000002253 acid Substances 0.000 description 3
- 150000001336 alkenes Chemical class 0.000 description 3
- 239000004411 aluminium Substances 0.000 description 3
- 229910052782 aluminium Inorganic materials 0.000 description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 3
- 238000000498 ball milling Methods 0.000 description 3
- 239000006229 carbon black Substances 0.000 description 3
- 229910052681 coesite Inorganic materials 0.000 description 3
- 229910052906 cristobalite Inorganic materials 0.000 description 3
- 150000002148 esters Chemical class 0.000 description 3
- MRELNEQAGSRDBK-UHFFFAOYSA-N lanthanum oxide Inorganic materials [O-2].[O-2].[O-2].[La+3].[La+3] MRELNEQAGSRDBK-UHFFFAOYSA-N 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- JRZJOMJEPLMPRA-UHFFFAOYSA-N olefin Natural products CCCCCCCC=C JRZJOMJEPLMPRA-UHFFFAOYSA-N 0.000 description 3
- 229910052682 stishovite Inorganic materials 0.000 description 3
- 229910052905 tridymite Inorganic materials 0.000 description 3
- 229910052726 zirconium Inorganic materials 0.000 description 3
- IQQVCMQJDJSRFU-UHFFFAOYSA-N 2-ethyl-2-(hydroxymethyl)propane-1,3-diol;prop-2-enoic acid Chemical class OC(=O)C=C.OC(=O)C=C.OC(=O)C=C.OC(=O)C=C.CCC(CO)(CO)CO IQQVCMQJDJSRFU-UHFFFAOYSA-N 0.000 description 2
- 238000005266 casting Methods 0.000 description 2
- AUONHKJOIZSQGR-UHFFFAOYSA-N oxophosphane Chemical compound P=O AUONHKJOIZSQGR-UHFFFAOYSA-N 0.000 description 2
- RVTZCBVAJQQJTK-UHFFFAOYSA-N oxygen(2-);zirconium(4+) Chemical compound [O-2].[O-2].[Zr+4] RVTZCBVAJQQJTK-UHFFFAOYSA-N 0.000 description 2
- QCCDLTOVEPVEJK-UHFFFAOYSA-N phenylacetone Chemical compound CC(=O)CC1=CC=CC=C1 QCCDLTOVEPVEJK-UHFFFAOYSA-N 0.000 description 2
- RPGWZZNNEUHDAQ-UHFFFAOYSA-N phenylphosphine Chemical compound PC1=CC=CC=C1 RPGWZZNNEUHDAQ-UHFFFAOYSA-N 0.000 description 2
- 238000007493 shaping process Methods 0.000 description 2
- 150000004756 silanes Chemical group 0.000 description 2
- 229910001928 zirconium oxide Inorganic materials 0.000 description 2
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 1
- 125000000174 L-prolyl group Chemical group [H]N1C([H])([H])C([H])([H])C([H])([H])[C@@]1([H])C(*)=O 0.000 description 1
- 241001582888 Lobus Species 0.000 description 1
- VKEQBMCRQDSRET-UHFFFAOYSA-N Methylone Chemical compound CNC(C)C(=O)C1=CC=C2OCOC2=C1 VKEQBMCRQDSRET-UHFFFAOYSA-N 0.000 description 1
- OKKRPWIIYQTPQF-UHFFFAOYSA-N Trimethylolpropane trimethacrylate Chemical compound CC(=C)C(=O)OCC(CC)(COC(=O)C(C)=C)COC(=O)C(C)=C OKKRPWIIYQTPQF-UHFFFAOYSA-N 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 238000010923 batch production Methods 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000011049 filling Methods 0.000 description 1
- XXMIOPMDWAUFGU-UHFFFAOYSA-N hexane-1,6-diol Chemical class OCCCCCCO XXMIOPMDWAUFGU-UHFFFAOYSA-N 0.000 description 1
- 208000020442 loss of weight Diseases 0.000 description 1
- 238000003760 magnetic stirring Methods 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- KTUFCUMIWABKDW-UHFFFAOYSA-N oxo(oxolanthaniooxy)lanthanum Chemical compound O=[La]O[La]=O KTUFCUMIWABKDW-UHFFFAOYSA-N 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 229910052573 porcelain Inorganic materials 0.000 description 1
- 238000013341 scale-up Methods 0.000 description 1
- 239000002344 surface layer Substances 0.000 description 1
- 230000003746 surface roughness Effects 0.000 description 1
Classifications
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- C—CHEMISTRY; METALLURGY
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- C04B35/01—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics
- C04B35/10—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics based on aluminium oxide
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
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- B22C9/00—Moulds or cores; Moulding processes
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- B22C9/24—Moulds for peculiarly-shaped castings for hollow articles
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- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B1/00—Producing shaped prefabricated articles from the material
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- 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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- 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
- B33Y70/00—Materials specially adapted for additive manufacturing
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- C04B2235/34—Non-metal oxides, non-metal mixed oxides, or salts thereof that form the non-metal oxides upon heating, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
- C04B2235/3418—Silicon oxide, silicic acids or oxide forming salts thereof, e.g. silica sol, fused silica, silica fume, cristobalite, quartz or flint
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Abstract
The invention discloses a kind of preparation methods of photocuring 3D printing Al-base ceramic slurry and ceramic core, the slurry is by ceramic formula powder, light-cured resin system, additive three parts form, the exemplary photocuring 3D printing Al-base ceramic slurry of the application, solid concentration is high, viscosity is small, suitable for the photopolymerization of photocuring 3D printing, it is big to overcome viscosity existing for the slurry used in current photocuring 3D printing ceramics, poor fluidity, easy reunion of the ceramic particle in slurry, it is scattered uneven, the problems such as solid concentration is low, expand application of the photocuring 3D printing in ceramic precise part.
Description
Technical field
The invention belongs to ceramic core preparing technical fields, and in particular to a kind of photocuring 3D printing Al-base ceramic slurry
And the preparation method of ceramic core.
Background technology
One of consumptive material necessary to ceramic core is the casting of aero-engine hollow blade.With to aero-engine thrust-weight ratio
It is required that raising, it is necessary to the cooling duct of engine blade indoor design complexity and blade surface design much it is variously-shaped
Hole, to meet the cooling requirement of hot operation engine blade.
Current most common moulding process is injection moulding and injection molding, and the two principle is similar, i.e., by ceramic raw material with increasing
Agent mixing is moulded, ceramic core mold is injected by pressure at high temperature, full of mould cavity, complicated shape is obtained after cooling
Ceramic core.What core used is all ceramic raw material, and hardness is larger, batch production when frequent mold filling and die sinking can cause
Die life reduces quickly, and the design process-cycle of mold is longer, therefore using injection moulding and the time cost of injection molding
It is all very high with frock cost.
Currently, two major class of main component silica and aluminium oxide of the raw material of ceramic core use, ceramic core are prepared
Removal be to influence one of important element of castings production efficiency, in depoling generally using high temperature and pressure alkali corrosion core,
Its is made to melt removal, traditional ceramic core is solid construction, cause the depoling time longer during depoling the problems such as.For
Shorten the depoling time, it is necessary to increase the contact area of core and depoling liquid.Therefore, ceramic core is on the premise of proof strength,
It is designed to porous structure, traditional method is by adjusting material prescription, and material possesses porous structure in itself, can increase table
Area, but with present prototyping method on the premise of proof strength, the ceramic core porosity is confined to 40% or so, passes through merely
The mode of adjustment material prescription can not further improve the porosity；Another method be designed to inside core it is hollow or complicated
Three dimensional topology can continue to improve the porosity, and during depoling, after core surface layer melts away, hollow or complex three-dimensional is topological
Structure can increase rapidly the contact area of ceramics and depoling liquid, so as to which the depoling time be greatly reduced, improve depoling efficiency, this knot
Structure can not be realized by mold.
3D printing technique is one kind of rapid shaping technique, it is a kind of based on digital model file, with powder
Shape metal or plastics etc. can jointing material, come the technology of constructed object by way of successively printing, be manufacture field
The emerging technology rapidly developed is referred to as " manufacturing technology with industrial revolution meaning ".
Photocuring 3D printing is a kind of rapid shaping technique that current development is more ripe, printing precision is higher, uses liquid
Photosensitive resin molded part, is cured with ultraviolet light, has many advantages, such as that easy to operate, forming speed is fast.
Slurry used in the ceramics of photocuring 3D printing at present there are viscosity is big, poor fluidity, ceramic particle in slurry easily
Reunite, is scattered uneven, solid concentration is low etc., and problems limit application of the photocuring 3D printing in ceramic precise part, currently
There are no the relevant reports that photocuring 3D printing technique is used to prepare labyrinth ceramic core.
The content of the invention
In view of drawbacks described above of the prior art or deficiency, the application is intended to provide a kind of photocuring 3D printing and is made pottery with aluminium base
Porcelain is starched and the preparation method of ceramic core.
In a first aspect, the embodiment of the present application provides a kind of photocuring 3D printing Al-base ceramic slurry, by ceramic formula
Powder, light-cured resin system, additive three parts composition.
Preferably：A kind of photocuring 3D printing Al-base ceramic slurry, is made of the raw material of following mass fraction：Ceramics are matched somebody with somebody
Fang Fenti 40~60%, light-cured resin system 30~55%, additive 0.4~10%.
Preferably：A kind of slurry of photocuring 3D printing ceramic core, is made of the raw material of following mass fraction：Ceramics are matched somebody with somebody
Fang Fenti 40~60%, light-cured resin 30~50%, photoinitiator 0.1~2%, dispersant 0.1~3%, anti-settling agent 0.1~
2%, levelling agent 0.1~2%, antifoaming agent 0.1~1%.
Preferably：A kind of slurry of photocuring 3D printing ceramic core, is made of the raw material of following mass fraction：Ceramics are matched somebody with somebody
Fang Fenti 50~55%, light-cured resin 40~45%, photoinitiator 1~1.5%, dispersant 1~2%, anti-settling agent 0.8~
1.5%, levelling agent 0.8~1.5%, antifoaming agent 0.5~0.8%.
Preferably：The ceramic formula powder is by following mass fraction into being grouped into：Calcine α-Al2O3Powder 90~95%,
Mineralizer 3~8%, sintering aid 0.5~1.3%, pore former 1.5~2.5%.
Preferably：The mineralizer is SiO2、TiO2, one or more of zirconium English powder, the sintering aid be MgO,
La2O3、Y2O3One or more of, the pore former is one or more of starch, carbon black, naphthalene.
Preferably：The ceramic formula powder is by following mass fraction into being grouped into：Calcine α-Al2O3Powder 92%, mineralising
Agent 5%, MgO 1%, pore former 2%.
Preferably：Calcining α-the Al2O3Mass fraction in powder shared by the particle of 200 mesh is 60~70%, 400 purposes
Mass fraction shared by particle is 30~40%；Further：Calcining α-the Al2O3Quality in powder shared by the particle of 200 mesh
Fraction is 65%, and the mass fraction shared by the particle of 400 mesh is 35%.
Preferably：The average grain diameter of the MgO is 2 μm.
Preferably：The light-cured resin is by low-viscosity polyurethane acrylate of the mass fraction for 55~65%, methyl
One or more of acrylate, Epocryl, mass fraction are 25~35% HDDA (1,6- hexylene glycols two
Acrylate) or/and TPGDA (tripropylene glycol diacrylate), mass fraction is 5~15% TMPTA (trimethylolpropanes
Triacrylate) or/and DTMPTA (two contracting trimethylolpropane tetra-acrylates) compositions.
Further：The light-cured resin is by low-viscosity polyurethane acrylate of the mass fraction for 60%, quality point
The HDDA (1,6 hexanediol diacrylate) that number is 30% and the TMPTA (trimethylolpropane tris third that mass fraction is 10%
Olefin(e) acid ester) composition.
Preferably：The photoinitiator is TPO (2,4,6- trimethylbenzoy-diphenies phosphine oxide), 1173 (2- hydroxyls
Base -2- methyl-1s phenylacetone -1), one or more of 819 [double (2,4,6- trimethylbenzoyls) phenyl phosphine oxides].
Preferably：The dispersant is silanes dispersant.
Slurry good fluidity provided by the embodiments of the present application, is uniformly dispersed, and is not easy to reunite, and solid concentration is high.
Any of the above-described slurry is prepared by following steps：
(1) photoinitiator is added in the light-cured resin of part, photoinitiator is made fully to dissolve；It is (preferred：Use magnetic force
Blender heating stirring 20min.)
(2) solution in remaining light-cured resin and step (1) is mixed, stirs, obtain Photo-sensitive Resins With Low Viscosity；It is (excellent
Choosing：30min is quickly stirred with electric mixer.)
(3) by ceramic powder (preferably：Mixing), step (2) prepare Photo-sensitive Resins With Low Viscosity, antifoaming agent, anti-settling agent,
It is (preferred that levelling agent sequentially adds mixing：Add in Ball-stirring mill or ball grinder and carry out mixing), obtain photocuring 3D printing aluminium
Base ceramic slurry.
Preferably：Equipped with zirconium oxide abrasive ball in the ball grinder, Ball-milling Time is for 24 hours.
Second aspect, the embodiment of the present application additionally provide a kind of method using photocuring 3D printing ceramic core.
The method that ceramic core is prepared using photocuring 3D printing, is as follows：
The slurry of above-mentioned photocuring 3D printing ceramic core is prepared, by the stl data of the ceramic core threedimensional model of design
File is imported into 3D printing software, and according to cutting into slices after shrinkage zoom model size, then light-source system and printing are flat
The cooperation of platform running gear is successively molded, and prints ceramic core biscuit, after cleaning biscuit surface slurry, successively to green body into
Row drying, dumping, sintering processes, obtain ceramic core.
Preferably：It is molded using the 7500/8500 photocuring 3D printers of Cera Fab of LITHOZ.
Preferably：To accelerate to melt core speed and loss of weight, there is hollow or three dimensional topology inside the ceramic core.
Preferably：The drying is that green body is transferred in baking oven, is slowly heated up by room temperature 75~85 DEG C, heat preservation 3~
10h is to slowly warm up to 100~200 DEG C, keeps the temperature 3~5h.
Preferably：The dumping is：Green body after drying is transferred to Muffle furnace and carries out dumping, temperature is to slowly warm up to
200 DEG C of heat preservation 1h, then proceed to be warming up to 300 DEG C, 400 DEG C, 500 DEG C, 600 DEG C, keep the temperature 1~5h in each temperature spot, most
After be warming up to 900 DEG C of 3~5h of heat preservation, complete the dumping of ceramic core.
Preferably：It is described to be sintered to：Green body after dumping is continued to be warming up to 1450 DEG C, keeps the temperature 0.5~3h.
Method provided by the embodiments of the present application, it is efficient, without secondary operation.
The third aspect, the embodiment of the present application provide a kind of ceramic core being prepared by any of the above-described method.
Fourth aspect, the embodiment of the present application also provide a kind of empty in engine by ceramic core prepared by any of the above-described method
Application in lobus cardiacus piece.
Compared with prior art, the invention has the advantages that：
(1) the exemplary photocuring 3D printing Al-base ceramic slurry of the application, solid concentration is high, viscosity is small, suitable for light
Cure the photopolymerization ceramic slurry of 3D printing, overcome viscosity existing for the slurry used in current photocuring 3D printing ceramics
Greatly, poor fluidity, ceramic particle easily reuniting, is scattered uneven in slurry, the problems such as solid concentration is low expand photocuring
Application of the 3D printing in ceramic precise part.
(2) method of the application example photocuring 3D printing ceramic core high-precision can produce with complex shape
Ceramic core product, prepared ceramic core surface roughness can reach 0.4~0.6 μm, biography reached in various performances
Without designing processing mold, the time cost of core and instrument cost is greatly reduced in the similary component that system technique produces.
(3) method of the application example photocuring 3D printing ceramic core can realize internal fine structure, in ceramics
Increase supporting body structure inside core, improve the porosity of ceramic core, considerably increase contact of the depoling solution with core
The removal efficiency of core is improved in face.
Specific embodiment
In order to be better understood by technical scheme, the present invention is made furtherly with reference to specific embodiment
It is bright.
Embodiment one
A kind of photocuring 3D printing Al-base ceramic slurry, is made of the raw material of following mass fraction：Ceramic formula powder
40%, light-cured resin 50%, photoinitiator 2%, dispersant 3%, anti-settling agent 2%, levelling agent 2%, antifoaming agent 1%.
The preparation method of the slurry：
Any of the above-described slurry is prepared by following steps：
(1) photoinitiator is added in the light-cured resin of part, photoinitiator is made fully to dissolve；
(2) solution in remaining light-cured resin and step (1) is mixed, stirs, obtain Photo-sensitive Resins With Low Viscosity；
(3) by ceramic formula powder, step (2) prepare Photo-sensitive Resins With Low Viscosity, antifoaming agent, anti-settling agent, levelling agent according to
Secondary addition mixing, obtains the slurry of photocuring 3D printing ceramic core.
Preferably：Mixing in the step (3) is：It adds in Ball-stirring mill or ball grinder and carries out mixing.
Preferably：Mixing, specific step are the ceramic powders used in the step (3) before use：By ceramic powder,
Absolute ethyl alcohol is added sequentially in quick ball grinder, and quick ball milling is uniformly dispersed, dry.
Embodiment two
The present embodiment feature identical with embodiment one repeats no more, and the present embodiment feature different from embodiment one exists
In：Photocuring 3D printing Al-base ceramic slurry, is made of the raw material of following mass fraction：Ceramic formula powder 60%, light is solid
Change resin 30%, photoinitiator 2%, dispersant 3%, anti-settling agent 2%, levelling agent 2%, antifoaming agent 1%.
Embodiment three
The present embodiment feature identical with embodiment one repeats no more, and the present embodiment feature different from embodiment one exists
In：Photocuring 3D printing Al-base ceramic slurry, is made of the raw material of following mass fraction：Ceramic formula powder 55%, light is solid
Change resin 43%, photoinitiator 1.6%, dispersant 0.1%, anti-settling agent 0.1%, levelling agent 0.1%, antifoaming agent 0.1%.
Example IV
The present embodiment feature identical with embodiment one repeats no more, and the present embodiment feature unlike the embodiments above exists
In：Photocuring 3D printing Al-base ceramic slurry, is made of the raw material of following mass fraction：Ceramic formula powder 51%, light is solid
Change resin 45%, photoinitiator 0.1%, dispersant 1.5%, anti-settling agent 1.5%, levelling agent 0.8%, antifoaming agent 0.1%.
Embodiment five
The present embodiment is repeated no more with embodiment one to any identical feature of example IV, the present embodiment and above-mentioned implementation
Example is different to be characterized in that：The ceramic formula powder is by following mass fraction into being grouped into：Calcine α-Al2O3Powder 90%,
SiO28%th, MgO 0.5%, content of starch 1.5%.
Embodiment six
The present embodiment is repeated no more with embodiment one to any identical feature of example IV, the present embodiment and above-mentioned implementation
Example is different to be characterized in that：The ceramic formula powder is by following mass fraction into being grouped into：Calcine α-Al2O3Powder 93%,
TiO23%th, La2O31.3%, content of carbon black 1.7%.
Embodiment seven
The present embodiment is repeated no more with embodiment one to any identical feature of example IV, the present embodiment and above-mentioned implementation
Example is different to be characterized in that：The ceramic formula powder is by following mass fraction into being grouped into：Calcine α-Al2O3Powder 94%, zirconium
English powder 3%, Y2O30.5%, naphthalene content 2.5%.
Embodiment eight
The present embodiment is repeated no more with embodiment one to any identical feature of example IV, the present embodiment and above-mentioned implementation
Example is different to be characterized in that：The ceramic formula powder is by following mass fraction into being grouped into：Calcine α-Al2O3Powder 92%,
SiO2Or/and TiO2Or/and zirconium English powder 5%, MgO or/and La2O3Or/and Y2O31%, starch or/and carbon black or/and naphthalene content
2%.
Embodiment nine
The present embodiment is repeated no more with embodiment five to any identical feature of embodiment eight, the present embodiment and above-mentioned implementation
Example is different to be characterized in that：Calcining α-the Al2O3Mass fraction in powder shared by the particle of 200 mesh is 60%, 400 purposes
Mass fraction shared by grain is 40%.
Embodiment ten
The present embodiment is repeated no more with embodiment five to any identical feature of embodiment eight, the present embodiment and above-mentioned implementation
Example is different to be characterized in that：Calcining α-the Al2O3Mass fraction in powder shared by the particle of 200 mesh is 70%, 400 purposes
Mass fraction shared by grain is 30%.
Embodiment 11
The present embodiment is repeated no more with embodiment five to any identical feature of embodiment eight, the present embodiment and above-mentioned implementation
Example is different to be characterized in that：Calcining α-the Al2O3Mass fraction in powder shared by the particle of 200 mesh is 65%, 400 purposes
Mass fraction shared by grain is 35%.
Embodiment 12
The present embodiment is repeated no more with embodiment five to any identical feature of embodiment eight, the present embodiment and above-mentioned implementation
Example is different to be characterized in that：The mineralizer is Nano-meter SiO_22, the pore former is starch.
Embodiment 13
The present embodiment is repeated no more with embodiment five to any identical feature of embodiment eight, the present embodiment and above-mentioned implementation
Example is different to be characterized in that：The average grain diameter of the MgO is 2 μm.
Embodiment 14
The present embodiment is repeated no more with embodiment one to any identical feature of example IV, the present embodiment and above-mentioned implementation
Example is different to be characterized in that：The light-cured resin is by low-viscosity polyurethane acrylate of the mass fraction for 55%, quality point
The HDDA (1,6 hexanediol diacrylate) that number is 35% and the TMPTA (trimethylolpropane tris third that mass fraction is 10%
Olefin(e) acid ester) composition.
Embodiment 15
The present embodiment is repeated no more with embodiment one to any identical feature of example IV, the present embodiment and above-mentioned implementation
Example is different to be characterized in that：The light-cured resin is by low-viscosity polyurethane acrylate or/and first of the mass fraction for 65%
Base acrylate or/and Epocryl, the HDDA (1,6 hexanediol diacrylate) that mass fraction is 20% or/
With the TMPTA (trimethylolpropane trimethacrylate) that TPGDA (tripropylene glycol diacrylate) and mass fraction are 15% or/
It is formed with DTMPTA (two contracting trimethylolpropane tetra-acrylates).
Embodiment 16
The present embodiment is repeated no more with embodiment one to any identical feature of example IV, the present embodiment and above-mentioned implementation
Example is different to be characterized in that：The light-cured resin is by low-viscosity polyurethane acrylate of the mass fraction for 60%, quality point
The HDDA (1,6 hexanediol diacrylate) that number is 30% and the TMPTA (trimethylolpropane tris third that mass fraction is 10%
Olefin(e) acid ester) composition.
Embodiment 17
The present embodiment is repeated no more with embodiment one to any identical feature of example IV, the present embodiment and above-mentioned implementation
Example is different to be characterized in that：The photoinitiator for TPO (2,4,6- trimethylbenzoy-diphenies phosphine oxide) and/or
1173 (- 1 phenylacetones -1 of 2- hydroxy-2-methyls) and/or 819 [double (2,4,6- trimethylbenzoyls) phenyl phosphine oxides].
Embodiment 18
The present embodiment is repeated no more with embodiment one to any identical feature of example IV, the present embodiment and above-mentioned implementation
Example is different to be characterized in that：The dispersant is silanes dispersant.
Embodiment 19
The present embodiment feature identical with embodiment one repeats no more, and the present embodiment feature different from embodiment one exists
In：
(1) photoinitiator is added in the light-cured resin of part, with magnetic stirring apparatus heating stirring 20min；
(2) solution in remaining light-cured resin and step (1) is mixed, quickly stirs 30min with electric mixer, obtain
To Photo-sensitive Resins With Low Viscosity；
(3) Photo-sensitive Resins With Low Viscosity, antifoaming agent, anti-settling agent, levelling agent prepared by ceramic powder, step (2) are added successively
Enter in the ball grinder equipped with zirconium oxide abrasive ball, ball milling for 24 hours, obtains the slurry of photocuring 3D printing ceramic core.
Embodiment 20
The method that ceramic core is prepared using photocuring 3D printing, is as follows：Prepare photocuring 3D printing ceramics
The stl data files of the ceramic core threedimensional model of design are imported into 3D printing software, according to shrinkage by the slurry of core
It cuts into slices after zoom model size, then ultraviolet system and the cooperation of print platform running gear is successively molded, and is printed
Go out ceramic core biscuit, after cleaning biscuit surface slurry, green body is dried successively, dumping, sintering processes, obtain ceramic mould
Core.It is molded using the 7500/8500 photocuring 3D printers of Cera Fab of LITHOZ.
Embodiment 21
The method that ceramic core is prepared using photocuring 3D printing, is as follows：
(1) ceramic core is designed using 3 d modeling software such as one or more of Pro/E, SolidWorks and UG
Threedimensional model.
(2) it is STL forms by the model conversion in (1), imported into the special Slice Software of 3D printing, according to 3D printing oxygen
Change the intrinsic shrinkage of aluminium ceramics, scale up core moulded dimension, then carry out slicing treatment.
(3) model after sliced is imported into 3D printing computer system, the parameters such as print speed, time for exposure is set
After printed, core biscuit is obtained after printing.
(4) core biscuit from print platform is removed, the not sufficiently cured slurry in surface is cleaned up with cleaning solution.
(5) core is transferred in baking oven, slowly heated up 80 DEG C (3~10h of heat preservation) by room temperature, is to slowly warm up to 150 DEG C
(3~5h of heat preservation), it is fully dry to core biscuit.
(6) core green body after cooling being transferred to Muffle furnace and carries out dumping, temperature is to slowly warm up to 200 DEG C of heat preservation 1h,
It then proceedes to be warming up to 300 DEG C, 400 DEG C, 500 DEG C, 600 DEG C, keeps the temperature 1~5h in each temperature spot, be finally warming up to 900 DEG C
3~5h is kept the temperature, completes the dumping of ceramic core.
(7) continue to be warming up to 1450 DEG C on the basis of step 6,0.5~3h of heat preservation is (preferred：2h), complete to ceramic mould
The sintering of core takes out after core furnace cooling, obtains ceramic core.
Embodiment 22
The present embodiment feature identical with embodiment 21 repeats no more, and the present embodiment is different from embodiment 21
It is characterized in that：(5) core is transferred in baking oven, slowly heated up 75-85 DEG C (preferably 80 DEG C) heat preservation 3h by room temperature, is slowly heated up
5h is kept the temperature to 100-200 DEG C (preferably 150 DEG C), it is fully dry to core biscuit.
Embodiment 23
The present embodiment feature identical with embodiment 21 repeats no more, and the present embodiment is different from embodiment 21
It is characterized in that：(5) core is transferred in baking oven, slowly heated up 75-85 DEG C (preferably 80 DEG C) heat preservation 5h by room temperature, is slowly heated up
3h is kept the temperature to 100-200 DEG C (preferably 150 DEG C), it is fully dry to core biscuit.
Embodiment 24
The present embodiment feature identical with embodiment 21 repeats no more, and the present embodiment is different from embodiment 21
It is characterized in that：(6) core green body after cooling being transferred to Muffle furnace and carries out dumping, temperature is to slowly warm up to 200 DEG C of heat preservation 1h,
It then proceedes to be warming up to 300 DEG C, 400 DEG C, 500 DEG C, 600 DEG C, keeps the temperature 1~5h in each temperature spot, be finally warming up to 900 DEG C
3~5h is kept the temperature, completes the dumping of ceramic core.
Embodiment 25
The present embodiment feature identical with embodiment 21 repeats no more, and the present embodiment is different from embodiment 21
It is characterized in that：(6) core green body after cooling being transferred to Muffle furnace and carries out dumping, temperature is to slowly warm up to 200 DEG C of heat preservation 1h,
It then proceedes to be warming up to 300 DEG C, 400 DEG C, 500 DEG C, 600 DEG C, keeps the temperature 5h in each temperature spot, be finally warming up to 900 DEG C of guarantors
Warm 1h completes the dumping of ceramic core.
Resin according to the present invention, slurry, 3D printing environment are to be protected from light or yellow light, to avoid ultraviolet light to raw material and
The influence of print procedure.
The preferred embodiment and the explanation to institute's application technology principle that above description is only the application.People in the art
Member should be appreciated that invention scope involved in the application, however it is not limited to the technology that the particular combination of above-mentioned technical characteristic forms
Scheme, while should also cover in the case where not departing from the inventive concept, it is carried out by above-mentioned technical characteristic or its equivalent feature
The other technical solutions for being combined and being formed.Such as features described above has similar work(with (but not limited to) disclosed herein
The technical solution that the technical characteristic of energy is replaced mutually and formed.
Claims (14)
1. a kind of photocuring 3D printing Al-base ceramic slurry, it is characterized in that：By ceramic formula powder, light-cured resin system,
Additive three parts form.
2. photocuring 3D printing Al-base ceramic slurry as described in claim 1, it is characterized in that：By the original of following mass fraction
Material composition：Ceramic formula powder 40~60%, light-cured resin system 30~55%, additive 0.4~10%.
3. photocuring 3D printing Al-base ceramic slurry as claimed in claim 2, it is characterized in that：By the original of following mass fraction
Material composition：Ceramic formula powder 40~60%, light-cured resin 30~50%, photoinitiator 0.1~2%, dispersant 0.1~
3%, anti-settling agent 0.1~2%, levelling agent 0.1~2%, antifoaming agent 0.1~1%.
4. photocuring 3D printing Al-base ceramic slurry as described in claim 1, it is characterized in that：The ceramic formula powder by
Following mass fraction into being grouped into：Calcine α-Al2O3Powder 90~95%, mineralizer 3~8%, sintering aid 0.5~1.3%,
Pore former 1.5~2.5%.
5. photocuring 3D printing Al-base ceramic slurry as claimed in claim 4, it is characterized in that：Calcining α-the Al2O3In powder
Mass fraction shared by the particle of 200 mesh is that the mass fraction shared by the particle of 60~70%, 400 mesh is 30~40%.
6. photocuring 3D printing Al-base ceramic slurry as claimed in claim 3, it is characterized in that：The light-cured resin is by matter
Measure one kind in low-viscosity polyurethane acrylate, methacrylate, Epocryl that fraction is 55~65%
Or the HDDA or/and TPGDA that several, mass fraction is 25~35%, mass fraction are 5~15% TMPTA or/and DTMPTA
Composition；Preferably：The photoinitiator is TPO, 1173, one or more of 819.
7. the preparation method of any photocuring 3D printing Al-base ceramic slurries of claim 1-6, it is characterized in that：Including
Following steps：
(1) photoinitiator is added in the light-cured resin of part, photoinitiator is made fully to dissolve；
(2) solution in remaining light-cured resin and step (1) is mixed, stirs, obtain Photo-sensitive Resins With Low Viscosity；
(3) Photo-sensitive Resins With Low Viscosity, antifoaming agent, anti-settling agent, levelling agent prepared by ceramic powder, step (2) are sequentially added mixed
It is even, obtain photocuring 3D printing Al-base ceramic slurry.
8. a kind of method using photocuring 3D printing ceramic core, it is characterized in that：Comprise the following steps：Prepare claim 1-
6 any photocuring 3D printing Al-base ceramic slurries, the stl data files of the ceramic core threedimensional model of design are led
Enter into 3D printing software, according to cutting into slices after shrinkage zoom model size, then light-source system and print platform walking
System cooperation is successively molded, and prints ceramic core biscuit, and after cleaning biscuit surface slurry, green body is dried successively
Dry, dumping, sintering processes, obtain ceramic core.
9. method as claimed in claim 8, it is characterized in that：There is hollow or three dimensional topology inside the ceramic core.
10. method as claimed in claim 8, it is characterized in that：The drying is that green body is transferred in baking oven, slow by room temperature
75~85 DEG C of heating keeps the temperature 3~10h, then is to slowly warm up to 100~200 DEG C, keeps the temperature 3~5h.
11. method as claimed in claim 8, it is characterized in that：The dumping is：By the green body after drying be transferred to Muffle furnace into
Row dumping, temperature are to slowly warm up to 200 DEG C of heat preservation 1h, then proceed to be warming up to 300 DEG C, 400 DEG C, 500 DEG C, 600 DEG C, each
A temperature spot keeps the temperature 1~5h, is finally warming up to 900 DEG C of 3~5h of heat preservation, completes the dumping of ceramic core.
12. method as claimed in claim 8, it is characterized in that：It is described to be sintered to：Green body after dumping is continued to be warming up to 1450
DEG C, keep the temperature 0.5~3h.
13. any ceramic moulds being prepared using the method for photocuring 3D printing ceramic core of claim 8-12
Core.
14. application of the ceramic core in engine hollow blade described in claim 13.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711107565.XA CN108083777B (en) | 2017-11-10 | 2017-11-10 | Aluminum-based ceramic slurry for photocuring 3D printing and preparation method of ceramic core |
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| CN201711107565.XA CN108083777B (en) | 2017-11-10 | 2017-11-10 | Aluminum-based ceramic slurry for photocuring 3D printing and preparation method of ceramic core |
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| Publication Number | Publication Date |
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| CN108083777A true CN108083777A (en) | 2018-05-29 |
| CN108083777B CN108083777B (en) | 2021-05-11 |
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| CN109396440A (en) * | 2018-12-27 | 2019-03-01 | 吉林大学 | A kind of forming method of ceramic particle reinforced aluminium base composite material |
| CN109665819A (en) * | 2018-12-10 | 2019-04-23 | 北京工业大学 | A kind of preparation method of the porous minimal surface structure aluminium oxide ceramics based on 3D printing |
| CN109746395A (en) * | 2019-03-06 | 2019-05-14 | 西安交通大学 | An easy-to-core sand core structure |
| CN110240484A (en) * | 2019-06-18 | 2019-09-17 | 西北工业大学 | A method for 3D printing high specific surface area and high efficiency catalyst-carrier system |
| CN110590387A (en) * | 2019-10-22 | 2019-12-20 | 嘉兴凤翼特种材料科技有限公司 | Inorganic fiber composite silicon-based ceramic core and preparation method thereof |
| CN110615672A (en) * | 2019-08-14 | 2019-12-27 | 中材高新材料股份有限公司 | Ceramic preform and preparation method thereof, ceramic wear-resistant structure and wear-resistant part |
| CN110698197A (en) * | 2019-08-08 | 2020-01-17 | 深圳光韵达光电科技股份有限公司 | Ceramic 3D printing paste and preparation method thereof |
| CN110734278A (en) * | 2019-10-22 | 2020-01-31 | 康硕(德阳)智能制造有限公司 | Hollow blade ceramic core material, preparation method thereof and method for manufacturing hollow blade ceramic core by using material |
| CN110773700A (en) * | 2019-10-30 | 2020-02-11 | 武汉因泰莱激光科技有限公司 | Aluminum oxide ceramic core easy to remove from hollow blade and preparation method thereof |
| CN110803915A (en) * | 2019-12-09 | 2020-02-18 | 昆山市工研院智能制造技术有限公司 | Ceramic photocuring material and preparation method thereof |
| CN111098387A (en) * | 2020-01-17 | 2020-05-05 | 中国科学院金属研究所 | A preparation method for photocuring 3D printing of complex double-walled silicon-based ceramic cores |
| CN111410419A (en) * | 2018-12-18 | 2020-07-14 | 辽宁省轻工科学研究院有限公司 | Silicon-based ceramic slurry for 3D printing and preparation method thereof |
| CN111760596A (en) * | 2020-06-13 | 2020-10-13 | 华东理工大学 | A kind of method for preparing structured catalyst carrier by photocuring |
| CN111777412A (en) * | 2020-07-14 | 2020-10-16 | 嘉兴饶稷科技有限公司 | 3D ceramic printing process for large-size model |
| CN112174637A (en) * | 2020-09-30 | 2021-01-05 | 重庆康维鑫智能科技有限责任公司 | Alumina-based ceramic slurry and preparation method of ceramic core thereof |
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| CN114082896A (en) * | 2021-11-23 | 2022-02-25 | 中国科学院金属研究所 | A kind of photocuring 3D printing aluminum-based ceramic core and preparation method thereof |
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| CN109665819A (en) * | 2018-12-10 | 2019-04-23 | 北京工业大学 | A kind of preparation method of the porous minimal surface structure aluminium oxide ceramics based on 3D printing |
| CN111410419A (en) * | 2018-12-18 | 2020-07-14 | 辽宁省轻工科学研究院有限公司 | Silicon-based ceramic slurry for 3D printing and preparation method thereof |
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| CN112537948A (en) * | 2020-12-19 | 2021-03-23 | 西北工业大学 | Photocuring 3D printing manufacturing method of alumina-based ceramic core |
| CN112573906A (en) * | 2020-12-31 | 2021-03-30 | 郑州大学 | Preparation method of super-thick crack-free alumina ceramic based on digital light processing molding technology |
| CN112573906B (en) * | 2020-12-31 | 2022-09-30 | 郑州大学 | Preparation method of ultra-thick crack-free alumina ceramics based on digital light processing molding technology |
| CN112919887A (en) * | 2021-03-02 | 2021-06-08 | 西安交通大学 | Photo-curing alumina ceramic paste and atomization cavity integrated forming method thereof |
| CN114082895A (en) * | 2021-11-17 | 2022-02-25 | 中国科学院金属研究所 | A kind of photocuring 3D printing composite ceramic core and preparation method thereof |
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