CN109928749A - A kind of large-scale wind driven generator ceramic blade and preparation method thereof - Google Patents
A kind of large-scale wind driven generator ceramic blade and preparation method thereof Download PDFInfo
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- 239000000919 ceramic Substances 0.000 title claims abstract description 78
- 238000002360 preparation method Methods 0.000 title claims abstract description 28
- RVTZCBVAJQQJTK-UHFFFAOYSA-N oxygen(2-);zirconium(4+) Chemical compound [O-2].[O-2].[Zr+4] RVTZCBVAJQQJTK-UHFFFAOYSA-N 0.000 claims abstract description 48
- MCMNRKCIXSYSNV-UHFFFAOYSA-N Zirconium dioxide Chemical compound O=[Zr]=O MCMNRKCIXSYSNV-UHFFFAOYSA-N 0.000 claims abstract description 42
- 229910001928 zirconium oxide Inorganic materials 0.000 claims abstract description 32
- SIWVEOZUMHYXCS-UHFFFAOYSA-N oxo(oxoyttriooxy)yttrium Chemical compound O=[Y]O[Y]=O SIWVEOZUMHYXCS-UHFFFAOYSA-N 0.000 claims abstract description 23
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 12
- 238000013001 point bending Methods 0.000 claims abstract description 6
- 239000002253 acid Substances 0.000 claims abstract description 5
- PNEYBMLMFCGWSK-UHFFFAOYSA-N Alumina Chemical compound [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims description 48
- 239000002002 slurry Substances 0.000 claims description 48
- 238000000498 ball milling Methods 0.000 claims description 40
- 239000004576 sand Substances 0.000 claims description 21
- 239000000843 powder Substances 0.000 claims description 19
- 239000002270 dispersing agent Substances 0.000 claims description 16
- 238000003801 milling Methods 0.000 claims description 16
- 239000007787 solid Substances 0.000 claims description 16
- 238000000465 moulding Methods 0.000 claims description 11
- 239000011324 bead Substances 0.000 claims description 8
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 claims description 6
- 238000009702 powder compression Methods 0.000 claims description 5
- QGZKDVFQNNGYKY-UHFFFAOYSA-O Ammonium Chemical compound [NH4+] QGZKDVFQNNGYKY-UHFFFAOYSA-O 0.000 claims description 4
- 239000002202 Polyethylene glycol Substances 0.000 claims description 4
- 229920000058 polyacrylate Polymers 0.000 claims description 4
- 229920001223 polyethylene glycol Polymers 0.000 claims description 4
- GCLGEJMYGQKIIW-UHFFFAOYSA-H sodium hexametaphosphate Chemical compound [Na]OP1(=O)OP(=O)(O[Na])OP(=O)(O[Na])OP(=O)(O[Na])OP(=O)(O[Na])OP(=O)(O[Na])O1 GCLGEJMYGQKIIW-UHFFFAOYSA-H 0.000 claims description 4
- 229910021529 ammonia Inorganic materials 0.000 claims description 3
- 238000010438 heat treatment Methods 0.000 claims description 3
- 238000010792 warming Methods 0.000 claims description 3
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 claims 1
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 claims 1
- 239000011574 phosphorus Substances 0.000 claims 1
- 229910052698 phosphorus Inorganic materials 0.000 claims 1
- 239000011734 sodium Substances 0.000 claims 1
- 229910052708 sodium Inorganic materials 0.000 claims 1
- 238000005829 trimerization reaction Methods 0.000 claims 1
- 239000000463 material Substances 0.000 abstract description 10
- 238000005260 corrosion Methods 0.000 abstract description 5
- 230000007797 corrosion Effects 0.000 abstract description 4
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 abstract description 3
- 229910052782 aluminium Inorganic materials 0.000 abstract description 3
- 239000004411 aluminium Substances 0.000 abstract description 3
- 239000002994 raw material Substances 0.000 abstract description 3
- 238000005265 energy consumption Methods 0.000 abstract description 2
- 150000002500 ions Chemical class 0.000 abstract description 2
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 238000005245 sintering Methods 0.000 abstract description 2
- 238000005266 casting Methods 0.000 description 6
- 238000000227 grinding Methods 0.000 description 6
- 239000012153 distilled water Substances 0.000 description 5
- 238000003756 stirring Methods 0.000 description 5
- 238000005303 weighing Methods 0.000 description 5
- 230000018044 dehydration Effects 0.000 description 4
- 238000006297 dehydration reaction Methods 0.000 description 4
- 238000002834 transmittance Methods 0.000 description 4
- 238000001514 detection method Methods 0.000 description 3
- 238000001035 drying Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 235000019832 sodium triphosphate Nutrition 0.000 description 3
- QCWXUUIWCKQGHC-UHFFFAOYSA-N Zirconium Chemical compound [Zr] QCWXUUIWCKQGHC-UHFFFAOYSA-N 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000007254 oxidation reaction Methods 0.000 description 2
- 230000000704 physical effect Effects 0.000 description 2
- 238000001694 spray drying Methods 0.000 description 2
- 229910052726 zirconium Inorganic materials 0.000 description 2
- VKEQBMCRQDSRET-UHFFFAOYSA-N Methylone Chemical compound CNC(C)C(=O)C1=CC=C2OCOC2=C1 VKEQBMCRQDSRET-UHFFFAOYSA-N 0.000 description 1
- 238000003916 acid precipitation Methods 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 238000000889 atomisation Methods 0.000 description 1
- WPKYZIPODULRBM-UHFFFAOYSA-N azane;prop-2-enoic acid Chemical compound N.OC(=O)C=C WPKYZIPODULRBM-UHFFFAOYSA-N 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000000748 compression moulding Methods 0.000 description 1
- RKTYLMNFRDHKIL-UHFFFAOYSA-N copper;5,10,15,20-tetraphenylporphyrin-22,24-diide Chemical compound [Cu+2].C1=CC(C(=C2C=CC([N-]2)=C(C=2C=CC=CC=2)C=2C=CC(N=2)=C(C=2C=CC=CC=2)C2=CC=C3[N-]2)C=2C=CC=CC=2)=NC1=C3C1=CC=CC=C1 RKTYLMNFRDHKIL-UHFFFAOYSA-N 0.000 description 1
- 239000005548 dental material Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 239000003595 mist Substances 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 238000000643 oven drying Methods 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- HWGNBUXHKFFFIH-UHFFFAOYSA-I pentasodium;[oxido(phosphonatooxy)phosphoryl] phosphate Chemical compound [Na+].[Na+].[Na+].[Na+].[Na+].[O-]P([O-])(=O)OP([O-])(=O)OP([O-])([O-])=O HWGNBUXHKFFFIH-UHFFFAOYSA-I 0.000 description 1
- 229910052573 porcelain Inorganic materials 0.000 description 1
- 235000019982 sodium hexametaphosphate Nutrition 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 208000011580 syndromic disease Diseases 0.000 description 1
- 239000001577 tetrasodium phosphonato phosphate Substances 0.000 description 1
- 239000001226 triphosphate Substances 0.000 description 1
- 229910001233 yttria-stabilized zirconia Inorganic materials 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/70—Wind energy
- Y02E10/72—Wind turbines with rotation axis in wind direction
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
Landscapes
- Compositions Of Oxide Ceramics (AREA)
Abstract
The present invention provides a kind of large-scale wind driven generator ceramic blades and its preparation method and application, belong to fan blade preparation field.The present invention is directly refined oxide raw material using sanded treatment, and preparation process only needs suitable quantity of water, avoids the introducing of acid ion, low energy consumption, high production efficiency, and safety non-pollution meets the demand for development of the following new material preparation；Meanwhile by the doped aluminium in yttrium oxide, zirconium oxide, the sintering temperature of zirconia ceramics can be reduced, ceramic crystalline grain size is refined, achieve the purpose that improve zirconia ceramics mechanical performance.Embodiment statistics indicate that, the density of ceramic blade provided by the invention is 6.06~6.08g/cm3, hardness is 14.75~15.27Gpa, and toughness is 9.75~10.17MPam1/2, three-point bending strength is 1201~1255MPa, it is corrosion-resistant, there is excellent mechanical performance and translucency.
Description
Technical field
The invention belongs to fan blade preparation technical field more particularly to a kind of large-scale wind driven generator ceramic blade and its
Preparation method.
Background technique
Zirconia ceramics material is because having excellent mechanical property, corrosion resistance, biocompatibility, aesthetics, higher
Thermal expansion coefficient, lower thermal conductivity and high chemical stability and be widely used in dental material, skeleton, sintex, grind
The fields such as grinding media and heat barrier coat material.
China Inner Mongolia Autonomous Region has wind energy resources abundant, has air port in the majority, so wind-power electricity generation is also increasingly
Development, but the blade of wind-driven generator mainly uses alloy at present, and which can no longer meet use demand, such as corrosion-resistant
The disadvantages of property is poor, causes to be corroded under the environment such as acid rain, and wear-resisting property is to be improved inhibits further using for the material.
Summary of the invention
In view of this, the purpose of the present invention is to provide a kind of large-scale wind driven generator ceramic blades and preparation method thereof.
Large-scale wind driven generator ceramic blade produced by the present invention has high intensity, and wear-resisting, excellent anti-corrosion performance.
In order to achieve the above-mentioned object of the invention, the present invention the following technical schemes are provided:
The present invention provides a kind of preparation methods of large-scale wind driven generator ceramic blade, comprising the following steps:
Ball milling after zirconium oxide, yttrium oxide, aluminium oxide, dispersing agent and water are mixed, obtains ball milling slurry；
The ball milling slurry is subjected to sanded treatment, obtains that slurry is sanded；
The sand milling slurry is dried, zirconia nanopowder ceramic powder is obtained；
By the zirconia nanopowder ceramic powder compression moulding, ceramic blade idiosome is obtained；
The ceramic blade idiosome is roasted, large-scale wind driven generator ceramic blade is obtained.
Preferably, the mass ratio of the zirconium oxide, yttrium oxide and aluminium oxide is (942~952): (48~58): (1~5).
Preferably, the solid content of the ball milling slurry is 55~65%.
Preferably, the ball milling carries out in roller mill or agitating ball mill；The rotational speed of ball-mill of the roller mill be 60~
80r/min, Ball-milling Time are 12~15h, and abrasive body is the zirconia ball of 10~30mm of partial size, the ball milling of the agitating ball mill
Revolving speed is 120~160r/min, and Ball-milling Time is 2~6h, and abrasive body is the zirconia ball of 5~10mm of partial size.
Preferably, the revolving speed of the sanded treatment is 2000~2500r/min, and the processing time is 2~6h, and abrasive media is
The zirconium oxide bead of 0.1~0.8mm.
Preferably, the solid content that slurry is sanded is 35~55%.
Preferably, the dispersing agent includes ammonium polyacrylate, sodium tripolyphosphate, calgon, polymethylacrylic acid ammonia
With one of polyethylene glycol or a variety of, addition quality and zirconium oxide, the gross mass of yttrium oxide and aluminium oxide of the dispersing agent
Than for (0.2~1.0): 100.
Preferably, the temperature of the roasting is 1350~1520 DEG C, and the time of roasting is 2~5h.
Preferably, the heating rate for being warming up to the temperature of the roasting is 5 DEG C/min.
The present invention also provides large-scale wind driven generator ceramic blade made from preparation method described in above-mentioned technical proposal, institutes
The density for stating ceramic blade is 6.06~6.08g/cm3, hardness be 14.75~15.27Gpa, toughness be 9.75~
10.17MPa·m1/2, three-point bending strength is 1201~1255MPa.
The present invention provides a kind of preparation methods of large-scale wind driven generator ceramic blade, comprising the following steps: will aoxidize
Ball milling after zirconium, yttrium oxide, aluminium oxide, dispersing agent and water mixing, obtains ball milling slurry；The ball milling slurry is carried out at sand milling
Reason obtains that slurry is sanded；The sand milling slurry is dried, zirconia nanopowder ceramic powder is obtained；By the oxidation
Zirconium nano-ceramic powder compression moulding, obtains ceramic blade idiosome；The ceramic blade idiosome is roasted, large-scale wind is obtained
Power generator ceramic blade.The present invention is directly refined oxide raw material using sanded treatment, and preparation process only needs suitable quantity of water,
Avoid the introducing of acid ion, low energy consumption, high production efficiency, safety non-pollution meets the hair of the following new material preparation
Exhibition requires；Meanwhile by the doped aluminium in yttrium oxide, zirconium oxide, the sintering temperature of zirconia ceramics can be reduced, is refined
Ceramic crystalline grain size achievees the purpose that improve zirconia ceramics mechanical performance.Embodiment statistics indicate that, pottery provided by the invention
The density of porcelain blade is 6.06~6.08g/cm3, hardness is 14.75~15.27Gpa, and toughness is 9.75~10.17MPam1 /2, three-point bending strength is 1201~1255MPa, it is corrosion-resistant, there is excellent mechanical performance and translucency.
Detailed description of the invention
Fig. 1 is the zirconia nanopowder ceramic powder field emission electron flying-spot microscope picture that the embodiment of the present invention 3 obtains；
Fig. 2 is the XRD diagram for the large-scale wind driven generator ceramic blade that the embodiment of the present invention 4 obtains.
Specific embodiment
The present invention provides a kind of preparation methods of large-scale wind driven generator ceramic blade, comprising the following steps:
Ball milling after zirconium oxide, yttrium oxide, aluminium oxide, dispersing agent and water are mixed, obtains ball milling slurry；
The ball milling slurry is subjected to sanded treatment, obtains that slurry is sanded；
The sand milling slurry is dried, zirconia nanopowder ceramic powder is obtained；
By the zirconia nanopowder ceramic powder compression moulding, ceramic blade idiosome is obtained；
The ceramic blade idiosome is roasted, large-scale wind driven generator ceramic blade is obtained.
Ball milling after the present invention mixes zirconium oxide, yttrium oxide, aluminium oxide, dispersing agent and water, obtains ball milling slurry.
In the present invention, the mass ratio of the zirconium oxide, yttrium oxide and aluminium oxide is preferably (942~952): (48~
58): (1~5), more preferably 945:55:2,948:52:3 or 950:50:4.
In the present invention, the dispersing agent preferably includes ammonium polyacrylate, sodium tripolyphosphate, calgon, poly- methyl
One of acrylic acid ammonia and polyethylene glycol are a variety of, the addition quality and zirconium oxide, yttrium oxide and aluminium oxide of the dispersing agent
Total mass ratio be preferably (0.2~1.0): 100, more preferably (0.4~0.8): 100, most preferably 0.6:100.
In the present invention, the solid content of the ball milling slurry is preferably 55~65%, and more preferably 58~62%, most preferably
It is 60%.
In the present invention, the ball milling preferably carries out in roller mill or agitating ball mill；The ball milling of the roller mill turns
Speed is preferably 60~80r/min, and Ball-milling Time is preferably 12~15h, and abrasive body is preferably the zirconia ball of 10~30mm of partial size；
The rotational speed of ball-mill of the agitating ball mill is preferably 120~160r/min, more preferably 140r/min, and Ball-milling Time is preferably 2
~6h, more preferably 4h, abrasive body are preferably the zirconia ball of 5~10mm of partial size.
After obtaining ball milling slurry, the ball milling slurry is carried out sanded treatment by the present invention, obtains that slurry is sanded.In the present invention
In, the revolving speed of the sanded treatment is preferably 2000~2500r/min, and the processing time is preferably 2~6h, and abrasive media is preferably
The zirconium oxide bead of 0.1~0.8mm, more preferably 0.6~0.8mm, 0.5~0.6mm, 0.4~0.5m, 0.3~0.4mm or 0.1
~0.2mm.In the present invention, oxide raw material can be directly refined to 100nm or less by the sanded treatment.
In the present invention, the solid content that slurry is sanded is preferably 35~55%, and more preferably 40~50%, most preferably
It is 45%.
It obtains after slurry is sanded, the sand milling slurry is dried the present invention, obtains zirconia nanopowder ceramic powder
Body.In the present invention, it is described drying process preferably include spray drying, Electric heat oven drying, evaporator dry, centrifugal dehydration and
One of filter-press dehydration is a variety of.The present invention does not have special restriction to the concrete mode of the drying process, using ability
Mode known to field technique personnel can completely remove moisture.In an embodiment of the present invention, the mist of the spray drying
Change frequency be 45Hz, 240 DEG C of inlet air temperature, 90 DEG C of leaving air temp；The dry temperature of the Electric heat oven is 90 DEG C, and the time is
12h；The temperature of the evaporator dry is 80 DEG C, time 8h.
After obtaining zirconia nanopowder ceramic powder, the present invention obtains the zirconia nanopowder ceramic powder compression moulding
Ceramic blade idiosome.In the present invention, the compression moulding is preferably moulding by casting.
After obtaining ceramic blade idiosome, the present invention roasts the ceramic blade idiosome, obtains large-scale wind generating
Machine ceramic blade.In the present invention, the temperature of the roasting is preferably 1350~1520 DEG C, and more preferably 1400~1490 DEG C,
Most preferably 1450 DEG C, the time of roasting is preferably 2~5h, more preferably 2.5~4h, most preferably 3h.
In the present invention, the heating rate for being warming up to the temperature of the roasting is preferably 5 DEG C/min.
The present invention also provides large-scale wind driven generator ceramic blade made from preparation method described in above-mentioned technical proposal, institutes
The density for stating ceramic blade is 6.06~6.08g/cm3, hardness be 14.75~15.27Gpa, toughness be 9.75~
10.17MPa·m1/2, three-point bending strength is 1201~1255MPa.
Below with reference to embodiment to a kind of large-scale wind driven generator ceramic blade provided by the invention and preparation method thereof and
Using being described in detail, but they cannot be interpreted as limiting the scope of the present invention.
Embodiment 1
1. being 1000 parts of calculating with zirconium oxide and yttrium oxide gross mass, accurately weighing zirconium oxide is 942 parts, yttrium oxide 58
Part, 1 part of aluminium oxide, dispersing agent polymethylacrylic acid ammonia is 2 parts, and distilled water is added, and adjusting slurry solid content is 55%, by material
By agitating ball mill ball milling 2h, abrasive body is the zirconia ball of 5~6mm of partial size, rotational speed of ball-mill 160r/min；
2. the slurry after stirring ball-milling is imported in sand mill, adjusting slurry solid content is 35%, continues that 6h, grinding is sanded
Body is the zirconium oxide bead of 0.6~0.8mm of partial size, and sand milling revolving speed is 2000r/min；
3. the slurry after sand milling is carried out spraying drying, adjusting atomization frequency is 45Hz, 240 DEG C of inlet air temperature, wind-warm syndrome out
90 DEG C of degree, obtains zirconia nanopowder ceramic powder；
4. by zirconia ceramics powder by moulding by casting, and it is roasted 5h at 1350 DEG C to get large scale wind is arrived
Generator ceramic blade.
Embodiment 2
1. being 1000 parts of calculating with zirconium oxide and yttrium oxide gross mass, accurately weighing zirconium oxide is 945 parts, yttrium oxide 55
Part, 2 parts of aluminium oxide, dispersants ammonium polyacrylate is 4 parts, and distilled water is added, and adjusting slurry solid content is 58%, and material is passed through
Agitating ball mill ball milling 4h, abrasive body are the zirconia ball of 7~8mm of partial size, rotational speed of ball-mill 140r/min；
2. the slurry after stirring ball-milling is imported in sand mill, adjusting slurry solid content is 40%, continues that 5h, grinding is sanded
Body is the zirconium oxide bead of 0.5~0.6mm of partial size, and sand milling revolving speed is 2100r/min；
3. the slurry after sand milling is obtained zirconia nanopowder ceramic powder directly through Electric heat oven in 90 DEG C of dry 12h；
4. by zirconia ceramics powder by moulding by casting, and it is roasted 4h at 1400 DEG C to get large scale wind is arrived
Generator ceramic blade.
Embodiment 3
1. being 1000 parts of calculating with zirconium oxide and yttrium oxide gross mass, accurately weighing zirconium oxide is 948 parts, yttrium oxide 52
Part, 3 parts of aluminium oxide, pentasodium triphosphate of dispersing agent is 6 parts, and distilled water is added, and adjusting slurry solid content is 60%, and material is passed through
Agitating ball mill ball milling 6h, abrasive body are the zirconia ball of 9~10mm of partial size, rotational speed of ball-mill 120r/min；
2. the slurry after stirring ball-milling is imported in sand mill, adjusting slurry solid content is 45%, continues that 4h, grinding is sanded
Body is the zirconium oxide bead of 0.4~0.5mm of partial size, and sand milling revolving speed is 2200r/min；
3. the slurry after sand milling is obtained zirconia nanopowder ceramic powder in 80 DEG C of dry 8h through evaporator；
The detection of field emission electron flying-spot microscope is carried out to the zirconia nanopowder ceramic powder that the present embodiment obtains, as a result
As shown in Figure 1.As shown in Figure 1, the zirconia nanopowder ceramic powder uniform particle sizes that the present embodiment obtains are less than 100nm.
4. by zirconia ceramics powder by moulding by casting, and it is roasted 3h at 1450 DEG C to get large scale wind is arrived
Generator ceramic blade.
Embodiment 4
1. being 1000 parts of calculating with zirconium oxide and yttrium oxide gross mass, accurately weighing zirconium oxide is 950 parts, yttrium oxide 50
Part, 4 parts of aluminium oxide, sodium hexametaphosphate dispersant is 8 parts, and distilled water is added, and adjusting slurry solid content is 62%, and material is passed through
Roller mill ball milling 12h, abrasive body are the zirconia ball of 10~20mm of partial size, rotational speed of ball-mill 60r/min；
2. the slurry after stirring ball-milling is imported in sand mill, adjusting slurry solid content is 50%, continues that 3h, grinding is sanded
Body is the zirconium oxide bead of 0.3~0.4mm of partial size, and sand milling revolving speed is 2300r/min；
3. the slurry after sand milling is carried out centrifugal dehydration first, then zirconium oxide is obtained in 90 DEG C of dry 5h through Electric heat oven
Nano-ceramic powder；
4. by zirconia ceramics powder by moulding by casting, and it is roasted 2.5h at 1490 DEG C to get large-scale wind is arrived
Power generator ceramic blade.
XRD detection is carried out to the large-scale wind driven generator ceramic blade that the present embodiment obtains, as a result as shown in Figure 2.By
Fig. 2 is it is found that the phase structure for the large-scale wind driven generator ceramic blade that the present embodiment obtains is single tetragonal phase structure, without other
Miscellaneous phase exists.
Embodiment 5
1. being 1000 parts of calculating with zirconium oxide and yttrium oxide gross mass, accurately weighing zirconium oxide is 952 parts, yttrium oxide 48
Part, 5 parts of aluminium oxide, dispersing agent polyethylene glycol is 10 parts, and distilled water is added, and adjusting slurry solid content is 65%, and material is passed through
Roller mill ball milling 15h, abrasive body are the zirconia ball of 20~30mm of partial size, rotational speed of ball-mill 80r/min；
2. the slurry after stirring ball-milling is imported in sand mill, adjusting slurry solid content is 55%, continues that 2h, grinding is sanded
Body is the zirconium oxide bead of 0.1~0.2mm of partial size, and sand milling revolving speed is 2500r/min；
3. the slurry after sand milling is carried out filter-press dehydration first, then zirconium oxide is obtained in 90 DEG C of dry 5h through Electric heat oven
Nano-ceramic powder；
4. by zirconia ceramics powder by moulding by casting, and it is roasted 2h at 1520 DEG C to get large scale wind is arrived
Generator ceramic blade.
The present invention to the physical property of the obtained large-scale wind driven generator ceramic blade of Examples 1 to 5 and light transmittance into
Detection is gone, the results are shown in Table 1.As can be seen from Table 1, the large-scale wind driven generator ceramic blade that the present invention is prepared causes
Close, density reaches 6.06g/cm3More than, Vickers hardness is higher than 14.75Gpa, and toughness has been more than 9.75MPam1/2, hence it is evident that
Higher than the toughness (6MPam of yttria-stabilized zirconia ceramics commonly used currently on the market1/2Left and right), three-point bending is strong
Degree is higher than 1201MPa, and light transmittance is higher than 43, illustrates after adding micro-oxidation aluminium, through the invention the large size of technical solution preparation
The mechanical property and light transmittance of wind-driven generator ceramic blade are improved.Therefore, the blower leaf prepared using this method
Piece has good physical chemistry and mechanical performance.
The physical property and light transmittance of the obtained large-scale wind driven generator ceramic blade of 1 Examples 1 to 5 of table
The above is only a preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art
For member, various improvements and modifications may be made without departing from the principle of the present invention, these improvements and modifications are also answered
It is considered as protection scope of the present invention.
Claims (10)
1. a kind of preparation method of large-scale wind driven generator ceramic blade, which comprises the following steps:
Ball milling after zirconium oxide, yttrium oxide, aluminium oxide, dispersing agent and water are mixed, obtains ball milling slurry；
The ball milling slurry is subjected to sanded treatment, obtains that slurry is sanded；
The sand milling slurry is dried, zirconia nanopowder ceramic powder is obtained；
By the zirconia nanopowder ceramic powder compression moulding, ceramic blade idiosome is obtained；
The ceramic blade idiosome is roasted, large-scale wind driven generator ceramic blade is obtained.
2. preparation method described in claim 1, which is characterized in that the mass ratio of the zirconium oxide, yttrium oxide and aluminium oxide is
(942~952): (48~58): (1~5).
3. preparation method according to claim 1 or 2, which is characterized in that the solid content of the ball milling slurry be 55~
65%.
4. preparation method according to claim 1, which is characterized in that the ball milling in roller mill or agitating ball mill into
Row；The rotational speed of ball-mill of the roller mill is 60~80r/min, and Ball-milling Time is 12~15h, and abrasive body is 10~30mm's of partial size
Zirconia ball；The rotational speed of ball-mill of the agitating ball mill is 120~160r/min, and Ball-milling Time is 2~6h, and abrasive body is partial size
The zirconia ball of 5~10mm.
5. preparation method according to claim 1, which is characterized in that the revolving speed of the sanded treatment is 2000~2500r/
Min, processing time are 2~6h, and abrasive media is the zirconium oxide bead of 0.1~0.8mm.
6. preparation method according to claim 1, which is characterized in that the solid content that slurry is sanded is 35~55%.
7. preparation method according to claim 1, which is characterized in that the dispersing agent includes ammonium polyacrylate, trimerization phosphorus
One of sour sodium, calgon, polymethylacrylic acid ammonia and polyethylene glycol are a variety of, the addition quality of the dispersing agent with
The total mass ratio of zirconium oxide, yttrium oxide and aluminium oxide is (0.2~1.0): 100.
8. preparation method according to claim 1, which is characterized in that the temperature of the roasting is 1350~1520 DEG C, roasting
The time of burning is 2~5h.
9. preparation method according to claim 1 or 8, which is characterized in that be warming up to the heating speed of the temperature of the roasting
Rate is 5 DEG C/min.
10. large-scale wind driven generator ceramic blade made from any one of claim 1~9 preparation method, which is characterized in that
The density of the ceramic blade is 6.06~6.08g/cm3, hardness be 14.75~15.27Gpa, toughness be 9.75~
10.17MPa·m1/2, three-point bending strength is 1201~1255MPa.
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