CN104987044A - High-strength aluminous electroceramics and preparation method thereof - Google Patents
High-strength aluminous electroceramics and preparation method thereof Download PDFInfo
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- CN104987044A CN104987044A CN201510426570.1A CN201510426570A CN104987044A CN 104987044 A CN104987044 A CN 104987044A CN 201510426570 A CN201510426570 A CN 201510426570A CN 104987044 A CN104987044 A CN 104987044A
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- 238000002360 preparation method Methods 0.000 title claims abstract description 18
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims abstract description 29
- 239000004927 clay Substances 0.000 claims abstract description 24
- 229910001404 rare earth metal oxide Inorganic materials 0.000 claims abstract description 22
- 239000010433 feldspar Substances 0.000 claims abstract description 20
- 229910052782 aluminium Inorganic materials 0.000 claims description 43
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 39
- 229910004298 SiO 2 Inorganic materials 0.000 claims description 16
- 238000000498 ball milling Methods 0.000 claims description 15
- 239000000203 mixture Substances 0.000 claims description 15
- 239000002994 raw material Substances 0.000 claims description 13
- 229910010413 TiO 2 Inorganic materials 0.000 claims description 8
- 229910000420 cerium oxide Inorganic materials 0.000 claims description 7
- MRELNEQAGSRDBK-UHFFFAOYSA-N lanthanum(3+);oxygen(2-) Chemical compound [O-2].[O-2].[O-2].[La+3].[La+3] MRELNEQAGSRDBK-UHFFFAOYSA-N 0.000 claims description 7
- BMMGVYCKOGBVEV-UHFFFAOYSA-N oxo(oxoceriooxy)cerium Chemical compound [Ce]=O.O=[Ce]=O BMMGVYCKOGBVEV-UHFFFAOYSA-N 0.000 claims description 7
- SIWVEOZUMHYXCS-UHFFFAOYSA-N oxo(oxoyttriooxy)yttrium Chemical compound O=[Y]O[Y]=O SIWVEOZUMHYXCS-UHFFFAOYSA-N 0.000 claims description 7
- 239000002245 particle Substances 0.000 claims description 7
- 238000001125 extrusion Methods 0.000 claims description 5
- 238000002156 mixing Methods 0.000 claims description 5
- 238000005452 bending Methods 0.000 abstract description 42
- 229910052573 porcelain Inorganic materials 0.000 abstract description 14
- KZHJGOXRZJKJNY-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Si]=O.O=[Al]O[Al]=O.O=[Al]O[Al]=O.O=[Al]O[Al]=O KZHJGOXRZJKJNY-UHFFFAOYSA-N 0.000 abstract description 10
- 229910052863 mullite Inorganic materials 0.000 abstract description 10
- 238000010521 absorption reaction Methods 0.000 abstract description 9
- 238000001035 drying Methods 0.000 abstract description 8
- 229910052593 corundum Inorganic materials 0.000 abstract description 4
- 239000010431 corundum Substances 0.000 abstract description 4
- 239000012212 insulator Substances 0.000 description 7
- 239000000463 material Substances 0.000 description 6
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 description 5
- 239000011591 potassium Substances 0.000 description 5
- 229910052700 potassium Inorganic materials 0.000 description 5
- 230000000052 comparative effect Effects 0.000 description 4
- 239000004576 sand Substances 0.000 description 4
- 239000000037 vitreous enamel Substances 0.000 description 4
- 239000000919 ceramic Substances 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 description 3
- 235000008733 Citrus aurantifolia Nutrition 0.000 description 2
- 235000011941 Tilia x europaea Nutrition 0.000 description 2
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 2
- 229910052656 albite Inorganic materials 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000004571 lime Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000011148 porous material Substances 0.000 description 2
- 229910052761 rare earth metal Inorganic materials 0.000 description 2
- 150000002910 rare earth metals Chemical class 0.000 description 2
- 238000012216 screening Methods 0.000 description 2
- 238000005245 sintering Methods 0.000 description 2
- 239000005995 Aluminium silicate Substances 0.000 description 1
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 1
- 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 description 1
- 229920000715 Mucilage Polymers 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 229910052784 alkaline earth metal Inorganic materials 0.000 description 1
- 150000001342 alkaline earth metals Chemical class 0.000 description 1
- PZZYQPZGQPZBDN-UHFFFAOYSA-N aluminium silicate Chemical compound O=[Al]O[Si](=O)O[Al]=O PZZYQPZGQPZBDN-UHFFFAOYSA-N 0.000 description 1
- 229910000323 aluminium silicate Inorganic materials 0.000 description 1
- 235000012211 aluminium silicate Nutrition 0.000 description 1
- REDXJYDRNCIFBQ-UHFFFAOYSA-N aluminium(3+) Chemical compound [Al+3] REDXJYDRNCIFBQ-UHFFFAOYSA-N 0.000 description 1
- 229910052788 barium Inorganic materials 0.000 description 1
- XDFCIPNJCBUZJN-UHFFFAOYSA-N barium(2+) Chemical compound [Ba+2] XDFCIPNJCBUZJN-UHFFFAOYSA-N 0.000 description 1
- 229910052728 basic metal Inorganic materials 0.000 description 1
- 150000003818 basic metals Chemical class 0.000 description 1
- 229910052791 calcium Inorganic materials 0.000 description 1
- 239000011575 calcium Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 239000012777 electrically insulating material Substances 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 230000002401 inhibitory effect Effects 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 230000000670 limiting effect Effects 0.000 description 1
- 238000011068 loading method Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 229910021645 metal ion Inorganic materials 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 230000008520 organization Effects 0.000 description 1
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- APTZNLHMIGJTEW-UHFFFAOYSA-N pyraflufen-ethyl Chemical compound C1=C(Cl)C(OCC(=O)OCC)=CC(C=2C(=C(OC(F)F)N(C)N=2)Cl)=C1F APTZNLHMIGJTEW-UHFFFAOYSA-N 0.000 description 1
- 239000010453 quartz Substances 0.000 description 1
- 230000002829 reductive effect Effects 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 238000005204 segregation Methods 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- 239000006104 solid solution Substances 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
- 239000004408 titanium dioxide Substances 0.000 description 1
Landscapes
- Compositions Of Oxide Ceramics (AREA)
- Inorganic Insulating Materials (AREA)
Abstract
The invention relates to high-strength aluminous electroceramics. The high-strength aluminous electroceramics contain the following components in percentage by mass: 45-50% of alumina, 10-15% of feldspar, 35-45% of clay and 0.2-2% of rare-earth oxide. According to the high-strength aluminous electroceramics, the rare-earth oxide is doped, so that the increase of generation of a mullite phase in a microstructure of electroceramics is facilitated; mullite needles are inserted in a corundum flake phase to form a reticular structure, so that the bending strength of the electroceramics can be remarkably improved; the bending strength, including drying transverse strength, drying moisture absorption bending strength, unglazed bending strength and glazed bending strength, of the electroceramics is improved, and the bending strength of both unglazed porcelain and glazed porcelain is increased by at least 20%; and the high-strength aluminous electroceramics are applicable to the technical field of ultra-high voltage and extra-high voltage. The invention also provides a preparation method for the high-strength aluminous electroceramics.
Description
Technical field
The present invention relates to electroceramics technical field, particularly relate to a kind of high-strength aluminum electroceramics and preparation method thereof.
Background technology
Electroceramics is the electrically insulating material of porcelain, has good insulativity and physical strength, as porcelain insulator.Porcelain insulator, because of its excellent properties such as high stability, erosion resistance, is directly subordinate to the insulating material be most widely used in insulator industry one.As the main body that various electrical equipment supports and insulate, in During Process of Long-term Operation, pillar porcelain insulator will bear the effects such as wire tension, wind-force and short-circuit current electric power, and these power vertically act on pillar porcelain insulator axis direction, cause bending load.In addition, the deadweight of electrical equipment gravity, strut members is also had and the acting on pillar porcelain insulator of the extreme natural environment such as contingent earthquake, thunderbolt, thermal shocking in running.Therefore, along with the fast development in China's electrical network ultra-high voltage, extra-high voltage direction, the safe and stable operation of power system is had higher requirement to the intensity of pillar porcelain insulator especially bending strength.
Summary of the invention
Based on this, be necessary high-strength aluminum electroceramics providing a kind of bending strength high and preparation method thereof.
A kind of high-strength aluminum electroceramics, raw material is calculated in mass percent, and comprises following composition: alumina 45 ~ 50%, feldspar 10 ~ 15%, clay 35 ~ 45% and rare earth oxide 0.2 ~ 2%.
Above-mentioned high-strength aluminum electroceramics, mix rare earth oxide, be conducive to the generation increasing mullite phase in electroceramics microstructure, acicular mullite be interspersed in alumina tabular mutually in, form reticulated structure, the bending strength of electroporcelain material can be significantly improved, the bending strength of electroceramics comprises drying transverse strength, dry moisture absorption bending strength, all increases without glaze bending strength and glazing bending strength, wherein the bending strength of unglazed porcelain and upper vitreous enamel all improves more than 20%, and above-mentioned high-strength aluminum electroceramics is applicable to ultra-high voltage, extra-high voltage technical field.
Wherein in an embodiment, described rare earth oxide is at least one in yttrium oxide, lanthanum trioxide and cerium oxide.
Wherein in an embodiment, described alumina comprises following composition: Al
2o
3, SiO
2, Fe
2o
3and TiO
2.
Wherein in an embodiment, described alumina is calculated in mass percent, and comprises the Al of 85 ~ 90%
2o
3, the SiO of 6 ~ 10%
2, the Fe of 0.5 ~ 1.5%
2o
3, the TiO of 1.0 ~ 4.5%
2.
Wherein in an embodiment, described clay comprises SiO
2, Al
2o
3and Fe
2o
3.
Wherein in an embodiment, described clay is calculated in mass percent, and comprises the SiO of 54 ~ 60%
2, the Al of 30 ~ 40%
2o
3, the Fe of 0.5 ~ 2.0%
2o
3.
A preparation method for high-strength aluminum electroceramics, comprises the following steps:
Supply raw materials: be calculated in mass percent, alumina 45 ~ 50%, feldspar 10 ~ 15%, clay 35 ~ 45% and rare earth oxide 0.2 ~ 2%;
By described raw material mixing and ball milling, deironing, extrusion molding, roasting, obtains described high-strength aluminum electroceramics.
Wherein in an embodiment, described rare earth oxide is at least one in yttrium oxide, lanthanum trioxide, cerium oxide.
Wherein in an embodiment, described ball milling obtains the particle that granularity reaches less than 45 μm.
Wherein in an embodiment, the temperature of described roasting is 1225 ± 5 DEG C.
Accompanying drawing explanation
Fig. 1 is the schema of the preparation method of the high-strength aluminum electroceramics of an embodiment.
Embodiment
For the ease of understanding the present invention, below with reference to relevant drawings, the present invention is described more fully.Preferred embodiment of the present invention is given in accompanying drawing.But the present invention can realize in many different forms, is not limited to embodiment described herein.On the contrary, provide the object of these embodiments be make the understanding of disclosure of the present invention more comprehensively thorough.
The high-strength aluminum electroceramics of one embodiment, raw material is calculated in mass percent, and comprises following composition: alumina 45 ~ 50%, feldspar 10 ~ 15%, clay 35 ~ 45% and rare earth oxide 0.2 ~ 2%.
Electroceramics mainly comprises other potteries such as feldspathic china, alumina ceramics and steatite ceramic.Wherein, alumina ceramics is also referred to as aluminous lightning rob.Aluminous lightning rob belongs to many organization materials, primarily of compositions such as corundum, mullite, glassy phase and pores.The rational principal crystalline phase of high-strength aluminum electroporcelain material should based on corundum, mullite, and the amount of quartz, glassy phase and pore phase is less.
Above-mentioned high-strength aluminum electroceramics, mix rare earth oxide, be conducive to the generation increasing mullite phase in electroceramics microstructure, acicular mullite be interspersed in alumina tabular mutually in, form reticulated structure, the bending strength of electroporcelain material can be significantly improved, the bending strength of electroceramics comprises drying transverse strength, dry moisture absorption bending strength, all increases without glaze bending strength and glazing bending strength, wherein the bending strength of unglazed porcelain and upper vitreous enamel all improves more than 20%, and above-mentioned high-strength aluminum electroceramics is applicable to ultra-high voltage, extra-high voltage technical field.
Preferably, rare earth oxide is at least one in yttrium oxide, lanthanum trioxide and cerium oxide.Trivalent metal ion in the rare earth oxide mixed differs larger with the ionic radius of trivalent aluminium ion, rare earth oxide is made to be difficult to solid solution in aluminum oxide, therefore it is present in corundum middle inhibiting grain growth mutually, make electroceramics form fine and close microstructure, thus be more conducive to the bending strength improving electroporcelain material.
Wherein in an embodiment, alumina comprises following composition: Al
2o
3, SiO
2, Fe
2o
3and TiO
2.Electroceramics bending strength increases along with doped with rare-earth oxide amount and improves constantly, but when doping is excessive, produces segregation in sosoloid, and rare earth oxide and titanium dioxide generate metatitanic acid rare-earth phase, can affect the bending strength of electroceramics on the contrary.
Wherein in an embodiment, alumina is calculated in mass percent, and comprises the Al of 85 ~ 90%
2o
3, the SiO of 6 ~ 10%
2, the Fe of 0.5 ~ 1.5%
2o
3, the TiO of 1.0 ~ 4.5%
2.
Feldspar is the aluminium silicate mineral of the basic metal such as potassium, sodium, calcium or barium or alkaline-earth metal.Preferably, feldspar is at least one in potassium felspar sand, albite, lime feldspar and celsian-felspar.
Wherein in an embodiment, clay comprises SiO
2, Al
2o
3and Fe
2o
3.
Wherein in an embodiment, clay is calculated in mass percent, and comprises the SiO of 54 ~ 60%
2, the Al of 30 ~ 40%
2o
3, the Fe of 0.5 ~ 2.0%
2o
3.
With reference to Fig. 1, the preparation method of the above-mentioned high-strength aluminum electroceramics of an embodiment, comprises the following steps:
Step S110: supply raw materials: be calculated in mass percent, alumina 45 ~ 50%, feldspar 10 ~ 15%, clay 35 ~ 45%, rare earth oxide 0.2 ~ 2%;
Step S120: by raw material mixing and ball milling, deironing, extrusion molding, roasting, obtains high-strength aluminum electroceramics.
The preparation method of above-mentioned high-strength aluminum electroceramics, mix rare earth oxide, be conducive to the generation increasing mullite phase in electroceramics microstructure, acicular mullite be interspersed in alumina tabular mutually in, form reticulated structure, the bending strength of electroporcelain material can be significantly improved, the bending strength of electroceramics comprises drying transverse strength, dry moisture absorption bending strength, all increases without glaze bending strength and glazing bending strength, wherein the bending strength of unglazed porcelain and upper vitreous enamel all improves more than 20%, and the high-strength aluminum electroceramics obtained is applicable to ultra-high voltage, extra-high voltage technical field.
Wherein in an embodiment, rare earth oxide is at least one in yttrium oxide, lanthanum trioxide and cerium oxide.
Wherein in an embodiment, alumina comprises following composition: Al
2o
3, SiO
2, Fe
2o
3and TiO
2.Wherein in an embodiment, alumina is calculated in mass percent, and comprises the Al of 85 ~ 90%
2o
3, the SiO of 6 ~ 10%
2, the Fe of 0.5 ~ 1.5%
2o
3, the TiO of 1.0 ~ 4.5%
2.
Wherein in an embodiment, clay comprises SiO
2, Al
2o
3and Fe
2o
3.
Wherein in an embodiment, clay is calculated in mass percent, and comprises the SiO of 54 ~ 60%
2, the Al of 30 ~ 40%
2o
3, the Fe of 0.5 ~ 2.0%
2o
3.
Wherein in an embodiment, ball milling obtains the particle that granularity reaches less than 45 μm.Preferably, ball milling obtains granularity and reaches the particle that less than 45 μm account for 99.9%.Preferably, ball-milling technology adopts 15t ball mill, and the time of ball milling is 24 ~ 48h.
Wherein in an embodiment, the concrete steps of deironing are that the particle obtained by ball milling carries out absorption screening deironing through the magnet groove be made up of the bar magnet of magneticstrength.
Wherein in an embodiment, the temperature of roasting is 1225 ± 5 DEG C.The time of roasting is 72h.Add rare earth oxide, to aluminous lightning rob, there is the effect such as refined crystalline strengthening, self toughening reinforcement, thus the sintering temperature of aluminous lightning rob can be reduced, reduce production cost, improve microstructure, improve mechanical property.Preferably, the temperature of roasting is 1225 DEG C.
Wherein in an embodiment, step S120 is specially: by raw material mixing and ball milling, deironing, press filt, extrusion molding, and dry, glazing and sanding, loading of kiln, roasting, obtains high-strength aluminum electroceramics.
Wherein in an embodiment, the dry 24h of dry employing energising.
Wherein in an embodiment, the preparation method of above-mentioned high-strength aluminum electroceramics also comprises step: after step S120, by high-strength aluminum Electroceramic glue mounting, checks.Preferably, the time of mucilage binding maintenance is 24h.
It is below specific embodiment.
Raw material alumina, feldspar and clay provide by Liling Yangdong electric porcelain electrical appliance company limited.
Embodiment 1
The high-strength aluminum electroceramics of embodiment 1, is calculated in mass percent, and comprises following composition: alumina 50%, feldspar 11.5%, clay 38%, yttrium oxide 0.5%.Wherein, in massfraction, alumina is containing Al
2o
385%, SiO
27.8%, Fe
2o
31.1%, TiO
23.8%; Feldspar is potassium felspar sand; Clay is containing SiO
255%, Al
2o
333%, Fe
2o
31.9%.
The preparation method of above-mentioned high-strength aluminum electroceramics, comprises the following steps:
Above-mentioned raw materials is provided.
By above-mentioned raw materials mixing and ball milling, deironing, extrusion molding, roasting, obtains high-strength aluminum electroceramics.Wherein, ball-milling technology adopts 15t ball mill, and Ball-milling Time is 30h, obtains granularity and reaches the particle that less than 45 μm account for 99.9%; Deferrization process is that the particle obtained by ball milling carries out absorption screening deironing through the magnet groove be made up of the bar magnet of magneticstrength; Roasting is roasting 72h at 1225 DEG C.
Embodiment 2
The high-strength aluminum electroceramics of embodiment 2, is calculated in mass percent, and comprises following composition: alumina 45%, feldspar 15%, clay 45%, lanthanum trioxide 0.2%.Wherein, in massfraction, alumina is containing Al
2o
390%, SiO
210%, Fe
2o
31.5%, TiO
21.0%; Feldspar is albite; Clay is containing SiO
260%, Al
2o
330%, Fe
2o
32.0%.
The preparation method of above-mentioned high-strength aluminum electroceramics is similar to embodiment 1.
Embodiment 3
The high-strength aluminum electroceramics of embodiment 3, is calculated in mass percent, and comprises following composition: alumina 48%, feldspar 10%, clay 35%, cerium oxide 2%.Wherein, in massfraction, alumina is containing Al
2o
388%, SiO
26%, Fe
2o
30.5%, TiO
24.5%; Feldspar is lime feldspar; Clay is containing SiO
254%, Al
2o
340%, Fe
2o
30.5%.
The preparation method of above-mentioned high-strength aluminum electroceramics is similar to embodiment 1.
Comparative example
The electroceramics of comparative example, is calculated in mass percent, and comprises following composition: alumina 50%, feldspar (potassium felspar sand) 11.5%, clay 38%.Wherein, in massfraction, alumina is containing Al
2o
385%, SiO
27.8%, Fe
2o
31.1%, TiO
23.8%; Feldspar is potassium felspar sand; Clay is containing SiO
255%, Al
2o
333%, Fe
2o
31.9%.
The preparation method of above-mentioned high-strength aluminum electroceramics is similar to embodiment 1.Difference is, sintering temperature is 1250 DEG C.
Electroceramics embodiment 1 and comparative example obtained carries out performance test.Wherein, bending strength is tested according to GB/T 8411.2-2008; Dry, wet flash-over voltage is tested according to GB/T 775.2-2003.
The electroceramics that comparative example obtains, drying transverse strength: 5.4MPa, dry moisture absorption bending strength: 2.7MPa, without glaze bending strength: 190MPa, glazing bending strength: 198Mpa, dry flashover voltage: 80KV, wet flash-over voltage: 36KV.
The electroceramics that embodiment 1 obtains, drying transverse strength: 5.8MPa, dry moisture absorption bending strength: 2.9MPa, without glaze bending strength: 228MPa, glazing bending strength: 241Mpa, dry flashover voltage: 84KV, wet flash-over voltage: 38KV.
Contrast above performance known, the present invention is by rare earth doped oxide compound, the bending strength of electroceramics comprises drying transverse strength, dry moisture absorption bending strength, all increases without glaze bending strength and glazing bending strength, and wherein the bending strength of unglazed porcelain and upper vitreous enamel all improves more than 20%; And dry flashover voltage and wet flash-over voltage all do not reduce, illustrate that its electric property is unaffected; In addition, maturing temperature reduces about 25 DEG C, reduces production cost.
Each technical characteristic of the above embodiment can combine arbitrarily, for making description succinct, the all possible combination of each technical characteristic in above-described embodiment is not all described, but, as long as the combination of these technical characteristics does not exist contradiction, be all considered to be the scope that this specification sheets is recorded.
The above embodiment only have expressed several embodiment of the present invention, and it describes comparatively concrete and detailed, but can not therefore be construed as limiting the scope of the patent.It should be pointed out that for the person of ordinary skill of the art, without departing from the inventive concept of the premise, can also make some distortion and improvement, these all belong to protection scope of the present invention.Therefore, the protection domain of patent of the present invention should be as the criterion with claims.
Claims (10)
1. a high-strength aluminum electroceramics, is characterized in that, raw material is calculated in mass percent, and comprises following composition: alumina 45 ~ 50%, feldspar 10 ~ 15%, clay 35 ~ 45% and rare earth oxide 0.2 ~ 2%.
2. high-strength aluminum electroceramics according to claim 1, is characterized in that, described rare earth oxide is at least one in yttrium oxide, lanthanum trioxide and cerium oxide.
3. high-strength aluminum electroceramics according to claim 1, is characterized in that, described alumina comprises following composition: Al
2o
3, SiO
2, Fe
2o
3and TiO
2.
4. high-strength aluminum electroceramics according to claim 3, is characterized in that, described alumina is calculated in mass percent, and comprises the Al of 85 ~ 90%
2o
3, the SiO of 6 ~ 10%
2, the Fe of 0.5 ~ 1.5%
2o
3, the TiO of 1.0 ~ 4.5%
2.
5. high-strength aluminum electroceramics according to claim 1, is characterized in that, described clay comprises SiO
2, Al
2o
3and Fe
2o
3.
6. high-strength aluminum electroceramics according to claim 5, is characterized in that, described clay is calculated in mass percent, and comprises the SiO of 54 ~ 60%
2, the Al of 30 ~ 40%
2o
3, the Fe of 0.5 ~ 2.0%
2o
3.
7. a preparation method for high-strength aluminum electroceramics, is characterized in that, comprises the following steps:
Supply raw materials: be calculated in mass percent, alumina 45 ~ 50%, feldspar 10 ~ 15%, clay 35 ~ 45% and rare earth oxide 0.2 ~ 2%;
By described raw material mixing and ball milling, deironing, extrusion molding, roasting, obtains described high-strength aluminum electroceramics.
8. the preparation method of high-strength aluminum electroceramics according to claim 7, is characterized in that, described rare earth oxide is at least one in yttrium oxide, lanthanum trioxide, cerium oxide.
9. the preparation method of high-strength aluminum electroceramics according to claim 7, is characterized in that, described ball milling obtains the particle that granularity reaches less than 45 μm.
10. the preparation method of high-strength aluminum electroceramics according to claim 7, is characterized in that, the temperature of described roasting is 1225 ± 5 DEG C.
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105418057A (en) * | 2015-11-17 | 2016-03-23 | 湖南华联火炬电瓷电器有限公司 | Porcelain sleeve manufacturing method |
| CN105859328A (en) * | 2016-03-31 | 2016-08-17 | 谢敬裕 | Self-glazed ceramic-molded clay body blocking agent and method |
| CN110467442A (en) * | 2019-09-11 | 2019-11-19 | 江西萍瓷实业有限公司 | A kind of high-strength porcelain insulator and preparation method thereof |
| CN115043646A (en) * | 2022-05-24 | 2022-09-13 | 湖南高强电瓷电器有限公司 | High-strength aluminum electric porcelain and preparation method thereof |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101472282B1 (en) * | 2014-01-06 | 2014-12-16 | 송두환 | Ceramic Composition for Lampshade and Preparing Methods Thereof |
-
2015
- 2015-07-20 CN CN201510426570.1A patent/CN104987044B/en active Active
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101472282B1 (en) * | 2014-01-06 | 2014-12-16 | 송두환 | Ceramic Composition for Lampshade and Preparing Methods Thereof |
Non-Patent Citations (2)
| Title |
|---|
| 徐如恬: ""铝质高强度电瓷材料"", 《电瓷避雷器》 * |
| 汪锡章: ""电瓷材料研究的现状与展望"", 《电瓷避雷器》 * |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105418057A (en) * | 2015-11-17 | 2016-03-23 | 湖南华联火炬电瓷电器有限公司 | Porcelain sleeve manufacturing method |
| CN105418057B (en) * | 2015-11-17 | 2018-03-09 | 湖南华联火炬电瓷电器有限公司 | Insulator tube preparation method |
| CN105859328A (en) * | 2016-03-31 | 2016-08-17 | 谢敬裕 | Self-glazed ceramic-molded clay body blocking agent and method |
| CN105859328B (en) * | 2016-03-31 | 2018-11-23 | 谢敬裕 | Spontaneous glaze ceramics molding unpainted clay idol sealer and method |
| CN110467442A (en) * | 2019-09-11 | 2019-11-19 | 江西萍瓷实业有限公司 | A kind of high-strength porcelain insulator and preparation method thereof |
| CN115043646A (en) * | 2022-05-24 | 2022-09-13 | 湖南高强电瓷电器有限公司 | High-strength aluminum electric porcelain and preparation method thereof |
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| CN104987044B (en) | 2017-09-05 |
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