CN1571078A - Method for preparing high throughflow nanometre composite lightning arrester valve plate - Google Patents
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- CN1571078A CN1571078A CN 200410018325 CN200410018325A CN1571078A CN 1571078 A CN1571078 A CN 1571078A CN 200410018325 CN200410018325 CN 200410018325 CN 200410018325 A CN200410018325 A CN 200410018325A CN 1571078 A CN1571078 A CN 1571078A
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- 238000000576 coating method Methods 0.000 claims abstract description 64
- 239000002114 nanocomposite Substances 0.000 claims abstract description 33
- 239000000463 material Substances 0.000 claims abstract description 30
- 239000000654 additive Substances 0.000 claims abstract description 23
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- 239000004593 Epoxy Substances 0.000 claims abstract description 11
- 239000011858 nanopowder Substances 0.000 claims abstract description 11
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- YEXPOXQUZXUXJW-UHFFFAOYSA-N oxolead Chemical compound [Pb]=O YEXPOXQUZXUXJW-UHFFFAOYSA-N 0.000 claims abstract description 4
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 claims description 82
- 239000011787 zinc oxide Substances 0.000 claims description 39
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 28
- WGLPBDUCMAPZCE-UHFFFAOYSA-N Trioxochromium Chemical compound O=[Cr](=O)=O WGLPBDUCMAPZCE-UHFFFAOYSA-N 0.000 claims description 22
- 229910000423 chromium oxide Inorganic materials 0.000 claims description 22
- AMWRITDGCCNYAT-UHFFFAOYSA-L hydroxy(oxo)manganese;manganese Chemical compound [Mn].O[Mn]=O.O[Mn]=O AMWRITDGCCNYAT-UHFFFAOYSA-L 0.000 claims description 22
- 229910000416 bismuth oxide Inorganic materials 0.000 claims description 15
- TYIXMATWDRGMPF-UHFFFAOYSA-N dibismuth;oxygen(2-) Chemical compound [O-2].[O-2].[O-2].[Bi+3].[Bi+3] TYIXMATWDRGMPF-UHFFFAOYSA-N 0.000 claims description 15
- 238000002360 preparation method Methods 0.000 claims description 13
- 239000000377 silicon dioxide Substances 0.000 claims description 11
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N Iron oxide Chemical compound [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 claims description 8
- 229910000410 antimony oxide Inorganic materials 0.000 claims description 8
- 230000015572 biosynthetic process Effects 0.000 claims description 8
- VTRUBDSFZJNXHI-UHFFFAOYSA-N oxoantimony Chemical compound [Sb]=O VTRUBDSFZJNXHI-UHFFFAOYSA-N 0.000 claims description 8
- 238000007761 roller coating Methods 0.000 claims description 8
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 claims description 8
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims description 7
- 229910052787 antimony Inorganic materials 0.000 claims description 7
- WATWJIUSRGPENY-UHFFFAOYSA-N antimony atom Chemical compound [Sb] WATWJIUSRGPENY-UHFFFAOYSA-N 0.000 claims description 7
- 150000001875 compounds Chemical class 0.000 claims description 7
- 239000005543 nano-size silicon particle Substances 0.000 claims description 6
- 238000012545 processing Methods 0.000 claims description 6
- 229910052814 silicon oxide Inorganic materials 0.000 claims description 6
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- 238000000498 ball milling Methods 0.000 claims description 5
- POULHZVOKOAJMA-UHFFFAOYSA-M dodecanoate Chemical compound CCCCCCCCCCCC([O-])=O POULHZVOKOAJMA-UHFFFAOYSA-M 0.000 claims description 5
- 238000001035 drying Methods 0.000 claims description 5
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- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 abstract 1
- 229910052782 aluminium Inorganic materials 0.000 abstract 1
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- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 229910004298 SiO 2 Inorganic materials 0.000 description 2
- 229910010413 TiO 2 Inorganic materials 0.000 description 2
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 2
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 2
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- 238000009826 distribution Methods 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- 239000012212 insulator Substances 0.000 description 2
- HTUMBQDCCIXGCV-UHFFFAOYSA-N lead oxide Chemical group [O-2].[Pb+2] HTUMBQDCCIXGCV-UHFFFAOYSA-N 0.000 description 2
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- GNRSAWUEBMWBQH-UHFFFAOYSA-N oxonickel Chemical compound [Ni]=O GNRSAWUEBMWBQH-UHFFFAOYSA-N 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- HYXGAEYDKFCVMU-UHFFFAOYSA-N scandium oxide Chemical compound O=[Sc]O[Sc]=O HYXGAEYDKFCVMU-UHFFFAOYSA-N 0.000 description 1
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- 229920000260 silastic Polymers 0.000 description 1
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- 229910052725 zinc Inorganic materials 0.000 description 1
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- Thermistors And Varistors (AREA)
Abstract
The invention relates to and provides a method for preparing high throughflow nano composite arrester varistor, and its characteristic: it adopts nano ZnO material as the main material, adds nano powder additive in 5-20wt% to mix them fully, makes press forming by a two-way press to form the varistor, then sinters at 900-1100 deg.C to make a main body of ZnO varistor; sprays aluminum on the main body and coats an inorganic high resistance layer on the side of the ZnO varistor, where the high resistance layer is mainly made of lead oxide or chrome oxide; then coats the side with heavy current-withstanding nano insulating composite coating prepared of nano functional fillings and epoxy oxazolidinone resin in the ratio of 20-30 to 70-80 (wt%), uniformly roll-coats the prepared nano insulating composite coating on the side, dries at a high temperature of 300 deg.C, and makes it.
Description
Technical field
The present invention relates to a kind of preparation method of high throughflow nano composite material arrester valve piece made.Belong to technical field of chemical compound preparation or ceramic material manufacturing technology field.
Background technology
Lightning arrester is a kind of protection equipment that can absorb overvoltage energy, over-voltage amplitude.During use lightning arrester is installed near the protected equipment, in parallel with protected equipment.The protective feature of lightning arrester is the basis of equipment for power transmission and distribution insulation coordination, and the lightning arrester of function admirable can be with the overvoltage Limiting in the electric power system to the harmless level that insulate.Improve the protective value of lightning arrester, can not only improve the operational reliability of electrical power trans mission/distribution system, and can reduce the insulation of electrical installation level, thereby alleviate weight of equipment, reduce equipment cost.Metal oxide (being mainly zinc oxide) lightning arrester is the key equipment of the anti-lightning strike and flashover fault of high pressure, supergrid and high voltage electric power equip ment, is widely used in ultra-high-tension power transmission line, city underground direct current supply line and railway network system.
High-voltage arrester generation flashover fault causes the large tracts of land discharge of high-voltage fence easily, directly threatens the safe operation of electrical network, and is very harmful.
Provide parameter advanced person, function admirable, extra-high tension insulator lightning arrester product that reliability is high in order to cooperate the needs of domestic electrical network, to press for to extreme high voltage grade development.
The composite material valve block is as the core component of zinc oxide arrester, and its performance directly influences the result of use of zinc oxide arrester.The enterprise of China's production composite material valve block is a lot of, but mainly based on low-grade product.
In pertinent literature, Chinese patent 88100513.4 has been introduced a kind of manufacture method of zinc oxide resistance sheet, is applicable to large, medium and small zinc oxide arrester valve block of manufacturing and overvoltage protection, the element that the surge absorbent properties are good.It is to be material of main part with the ZnO powder, with each additive Bi
2O
3, Cr
2O
3, MnO
2, Co
2O
3Deng (Sb
2O
3Except) substitute with its corresponding nitrate solution.Through fully mixing, dry, pressure forming, sinter resistor disc in 1100 ℃ ~ 1300 ℃ again.Japan Patent JP2003119074 has introduced a kind of high-performance zinc oxide valve block manufacture method.The described zinc oxide valve plate of this patent on powder bases such as zinc oxide, bismuth oxide, cobalt oxide, manganese oxide, nickel oxide, aluminium oxide, antimony oxide, titanium oxide and chromium oxide, has added the scandium oxide of molar percentage 0.001% ~ 1.5% at traditional raw material.The zinc oxide valve plate that makes has high nonlinear coefficient and excellent shock resistance.But these valve blocks are compared as yet with traditional pressure sensitive level zinc oxide aspect through-current capability and are not significantly improved.
Aspect the valve block side insulation, pertinent literature such as Chinese patent 96116258.9 have been introduced a kind of arrester valve piece made of metallic oxide manufacture method, be characterized in that the valve block insulating case selects good insulation preformance and resistant to elevated temperatures silastic material for use, increased the creepage distance of valve block insulation side, can tolerate the impact of big electric current and do not have the sudden strain of a muscle of bursting and iron phenomenon.European patent WO02065486 has introduced a kind of electrical insulating material and device, is a kind of rod or tubular High-Voltage Insulation insulator, and appearance covers the insulating coating that one deck adds particular fillers, and the varistor powder of adding in the coating has the feature of the electric Tension Control of conversion.Insulation daughter nucleus core is the pottery member, may contain the Zinc oxide powder of controlling electric tension force.European patent RO117052 has introduced a kind of zinc oxide varistor production technology with over-pressure ability, in order to prevent non-linear valve block because superheating phenomenon that overvoltage caused.This invention is in zinc oxide varistor inwall both sides even coated two layers of thin coating, and the valve block end is welded with two electrodes, and one of them electrode plays hot cushioning effect, and another electrode can become the passage that injects the thermal insulation resin.European patent EP 0683496 has been introduced a kind of high-voltage arrester.It is piled up between two electrodes by a series of zinc oxide valve plates and forms, and the side insulation material is an organic silicon rubber.European patent EP 0620566 has been introduced a kind of zinc oxide valve plate side insulation with inorganic crystalline state glass coating.This layer inorganic coating main component is PbO, other additive such as ZnO, B
2O
3, SiO
2, MoO
3, WO
3, TiO
2With crystallinity and the insulation property of NiO powder with the raising inorganic coating.European patent EP 0494507 has been introduced a kind of high energy ZnO valve block, and its insulation necklace has high dielectric property and elevated temperature heat insulation property, has the layer of metal coating to be connected between electrode and insulation necklace.Through low energy current impulse test, the result of zinc oxide valve plate is satisfactory.European patent EP 0060738 introduced the production technology of a kind of valve block side inorganic ceramic thick film, and this layer inorganic ceramic material also added molar percentage and be 40% pure zinc powder except that traditional zinc oxide.The sintering of the ceramic silk-screen layer of this layer toasted 30 to 120 minutes down at 860 ℃, can effectively prevent the abnormal contraction of valve body.This method can be used for making compound coil on the insulating ceramics base.French Patent (FRP) FR2485345 has introduced a kind of production technology of air-tightness valve block, and it adopts a kind of special insulation coating to replace the air-tightness lightning arrester, and the air-locked coating of this layer can effectively improve the stability of valve block in non-oxidizable insulating gas environment.United States Patent (USP) 5294908,5447892 and 5547907 has been introduced zinc oxide valve plate side insulation crystalline oxide base unorganic glass coating, and the same with European patent EP 0620566, this layer inorganic coating main component is PbO, is aided with ZnO, B
2O
3, SiO
2, MoO
3, WO
3, TiO
2With powder additives such as NiO.
Above-mentioned patent documentation relates to inorganic side insulation coating, not only cost an arm and a leg, and the shortcoming of the easy moisture absorption of inorganic in actual use side glaze, the organic side insulation coating that relates in addition adopts mostly is the micron-sized powder filler, packing material size is bigger, is generally about 0.2 μ m.Because the high-temperature baking curing process is adopted in the application of valve block insulating varnish mostly, organic coating easily forms hole or pin hole in filming in solidification process, be unfavorable for that coating forms the insulation film of complete continuous densification, thereby conventional insulating coating is difficult to resist the super-large current impact.Its side insulation performance can't reach the technical indicator of international IEC-60099-4.
Summary of the invention
The objective of the invention is to adopt the raw material of nano-powder, make high throughflow nano composite material valve block through certain processing step as the zinc oxide arrester valve block in order to overcome the shortcoming and defect that above-mentioned zinc oxide arrester method sheet exists.Another object of the present invention is not only will improve the arrester valve piece made through-current capability, and will improve the performance of Chinese People's Anti-Japanese Military and Political College's rush of current of its side insulation composite coating.
The objective of the invention is to reach by following measure and technical scheme.
The preparation method of a kind of high throughflow nano composite material arrester valve piece made of the present invention is a material of main part with traditional zinc oxide (ZnO) material, it is characterized in that having following preparation process and step:
A. adopting nano zine oxide (ZnO) material is material of main part, adds the nano-powder additive of 5-20% (percentage by weight), and promptly the ratio of zinc oxide and additive is 80-95: 5-20; Nanometer additive comprises nano oxidized antimony, nano bismuth oxide, nano silicon oxide, nano chromium oxide, nano manganese oxide, after organic laurate coats processing, it is carried out fully mixed;
B. abundant mixed compound adopts two-way press compression moulding, forms valve block, at 900 ~ 1100 ℃ of sintering temperatures, makes the zinc oxide valve plate body then;
C. carry out aluminium-plated to this valve block body and inorganic resistive formation is coated in the side, resistive formation is mainly lead oxide or chromium oxide;
D. and then apply the nano-composite insulating coating of anti-big electric current in the side, this coating is formulated by nanoscale functional stuffing and epoxy oxazolidone resin; The nanoscale functional stuffing be the iron oxide handled through organic coating, chromium oxide, zinc oxide, titanium oxide, antimony oxide, bismuth oxide, silica one of them, the proportioning of nanoscale functional stuffing in this nano-composite insulating coating and epoxy oxazolidone resin is 20 ~ 30: 70 ~ 80 (percentage by weights), through 24 hours ball millings, after it is fully mixed, stand-by;
E. with the above-mentioned even roller coating of nano-composite insulating coating that makes in the side of zinc oxide valve plate, behind 300 ℃ of hyperthermia dryings, make high throughflow nano composite material arrester valve piece made.
Above-mentioned nano zine oxide granularity is less than 100nm, and the best is 30 ~ 50nm.Described and the mixed uniformly nanometer additive antimony oxide of nano zine oxide, bismuth oxide, silica, chromium oxide, manganese oxide, its granularity is all less than 100nm, and the best is 30-50nm.
The addition of above-mentioned nanometer additive is 5-20%, and wherein nano oxidized antimony is 2.5-10%, and bismuth oxide is 0.9-5.6%, and silica is 0.5-2.4%, and chromium oxide is 0.7-1.0%, and manganese oxide is 0.4-1.0%; The optimal addn of nanometer additive is 10-15% (percentage by weight)
The nanoscale functional stuffing of handling through organic coating in the above-mentioned nano-composite insulating coating, promptly the particle diameter of iron oxide, chromium oxide, zinc oxide, titanium oxide, antimony oxide, bismuth oxide, silica is 50-200nm.
The novel high throughflow nano composite material zinc oxide arrester valve block that the inventive method makes, and the compound anti-big electric current side insulation coating of novel nano can improve the anti-high current surge withstanding capability of zinc oxide arrester valve block through-current capability and valve block side.The advantage that the present invention prepares high throughflow nano composite oxides zinc arrester valve piece made method is that technology is simple, low cost of manufacture.The efficient dispersion of nano-powder in coating, not only can give full play to the excellent specific property of aspects such as the electricity that shows after the material nanoization, heat, also can effectively fill the pin hole of coating, significantly reduce the formation of the various defectives in the coating, thereby reach the purpose that significantly improves coating Chinese People's Anti-Japanese Military and Political College rush of current performance.
Embodiment
Now in conjunction with the embodiments, the inventive method is described in further detail.
Embodiment one: with the nano zine oxide of 80% (percentage by weight), match with 20% nano-powder additive; Include nano oxidized antimony 10%, nano bismuth oxide 5.6%, nano silicon oxide 2.4%, nano chromium oxide 1%, nano manganese oxide 1% mixed powder in 20% the nano-powder additive; After carrying out organic laurate coating processing, carry out abundant batch mixing, adopt two-way press to carry out the valve block moulding subsequently, behind 1000 ℃ of sintering, make high throughflow nano zine oxide valve block body.By carrying out aluminium-plated to the valve block body and inorganic resistive formation lead oxide is coated in the side; And then the valve block side applied anti-big electric current nanometer insulated compound coating.Anti-big electric current nano-composite insulating coating is formulated by nanoscale functional paint and epoxy oxazolidone resin; Both proportionings are 20: 80 (percentage by weight); The nanoscale functional stuffing of handling through organic coating adopts nano silicon oxide, takes by weighing 20% (percentage by weight) through the acid-treated silica of bay and 80% (percentage by weight) epoxy oxazolidone resin.With the ball milling of above-mentioned batch through 24 hours, make fully to mix, then with the even roller coating of this nano-composite insulating coating in the valve block side.The valve block of side roller coating nanometer organic coating behind 300 ℃ of hyperthermia dryings, promptly gets high throughflow nano composite material arrester valve piece made again.
Embodiment two: with 95% (percentage by weight) nano zine oxide, match with 5% nano-powder additive; Include nano oxidized antimony 2.5%, nano bismuth oxide 0.9%, nano silicon oxide 0.5%, nano chromium oxide 0.7%, nano manganese oxide 0.4% mixed powder in 5% the nano-powder additive; After carrying out organic laurate coating processing, carry out abundant batch mixing, adopt two-way press to carry out the valve block moulding subsequently, behind 1100 ℃ of sintering, make high throughflow nano zine oxide valve block body.By carrying out aluminium-plated to the valve block body and inorganic resistive formation chromium oxide is coated in the side; And then the valve block side applied anti-big electric current nanometer insulated compound coating.Anti-big electric current nano-composite insulating coating is formulated by nanoscale functional paint and epoxy oxazolidone resin; Both proportionings are 30: 70 (percentage by weight); The nanoscale functional stuffing of handling through organic coating adopts nano chromium oxide, takes by weighing 30% (percentage by weight) through the acid-treated chromium oxide of bay and 70% (percentage by weight) epoxy oxazolidone resin.With the ball milling of above-mentioned batch through 24 hours, make fully to mix, then with the even roller coating of this nano-composite insulating coating in the valve block side.The valve block of side roller coating nanometer organic coating behind 300 ℃ of hyperthermia dryings, promptly gets high throughflow nano composite material arrester valve piece made again.
Embodiment three: with 85% (percentage by weight) nano zine oxide, match with 15% nano-powder additive; Include nano oxidized antimony 8.6%, nano bismuth oxide 3.4%, nano silicon oxide 1.6%, nano chromium oxide 0.8%, nano manganese oxide 0.6% mixed powder in 15% the nano-powder additive; After carrying out organic laurate coating processing, carry out abundant batch mixing, adopt two-way press to carry out the valve block moulding subsequently, behind 1100 ℃ of sintering, make high throughflow nano zine oxide valve block body.By carrying out aluminium-plated to the valve block body and inorganic resistive formation chromium oxide is coated in the side; And then the valve block side applied anti-big electric current nanometer insulated compound coating.Anti-big electric current nano-composite insulating coating is formulated by nanoscale functional paint and epoxy oxazolidone resin; Both proportionings are 25: 75 (percentage by weight); The nanoscale functional stuffing of handling through organic coating adopts nano-titanium oxide, takes by weighing 25% (percentage by weight) through the acid-treated titanium oxide of bay and 75% (percentage by weight) epoxy oxazolidone resin.With the ball milling of above-mentioned batch through 24 hours, make fully to mix, then with the even roller coating of this nano-composite insulating coating in the valve block side.The valve block of side roller coating nanometer organic coating behind 300 ℃ of hyperthermia dryings, promptly gets high throughflow nano composite material arrester valve piece made again.
Used nanometer Zinc oxide powder in the foregoing description, its particle diameter is 30-50nm; Described and the mixed uniformly nanometer additive antimony oxide of nano zine oxide, bismuth oxide, silica, chromium oxide, manganese oxide, its granularity is 30-50nm.Nanoscale functional stuffing in the used nano-composite insulating coating, promptly the particle diameter of chromium oxide, titanium oxide, silica is 100nm
Nano composite material arrester valve piece made by the foregoing description preparation carries out the test of square wave through-current capability, and nanometer organic composite coating in valve block side is carried out the anti-high current surge withstanding capability of coating 4/10 μ s according to the IEC-60099-4 international standard detect, and compare with the prepared arrester valve piece made side anti-high current surge withstanding capability of organic coating of common zinc oxide valve block and ordinary titanium powder filler.
It is as shown in the table that the anti-high current surge withstanding capability of the organic composite coating 4/10 μ s of each arrester valve piece made through-current capability and side nanometer is estimated correction data:
Arrester valve piece made through-current capability and the anti-high current surge withstanding capability evaluation of side organic coating 4/10 μ s
As seen from the above table, nano composite material valve block through-current capability is significantly higher than the common zinc oxide arrester valve piece made, the anti-high current surge withstanding capability of 4/10 μ s of each coating sample all is higher than the prepared coating of ordinary titanium powder filler, wherein the anti-high current surge withstanding capability of embodiment three is the highest, than international standard high approximately 30%.
Claims (4)
1. the preparation method of a high throughflow nano composite material arrester valve piece made is a material of main part with traditional zinc oxide (ZnO) material, it is characterized in that having following preparation process and step:
A. adopting nano zine oxide (ZnO) material is material of main part, adds the nano-powder additive of 5-20% (percentage by weight), and promptly the ratio of zinc oxide and additive is 80-95: 5-20; Nanometer additive comprises nano oxidized antimony, nano bismuth oxide, nano silicon oxide, nano chromium oxide, nano manganese oxide, after organic laurate coats processing, it is carried out fully mixed;
B. abundant mixed compound adopts two-way press compression moulding, forms valve block, at 900 ~ 1100 ℃ of sintering temperatures, makes the zinc oxide valve plate body then;
C. carry out aluminium-plated to this valve block body and inorganic resistive formation is coated in the side, resistive formation is mainly lead oxide or chromium oxide;
D. and then apply the nano-composite insulating coating of anti-big electric current in the side, this coating is formulated by nanoscale functional stuffing and epoxy oxazolidone resin; The nanoscale functional stuffing be the iron oxide handled through organic coating, chromium oxide, zinc oxide, titanium oxide, antimony oxide, bismuth oxide, silica one of them, the proportioning of nanoscale functional stuffing in this nano-composite insulating coating and epoxy oxazolidone resin is 20 ~ 30: 70 ~ 80 (percentage by weights), through 24 hours ball millings, after it is fully mixed, stand-by;
E. with the above-mentioned even roller coating of nano-composite insulating coating that makes in the side of zinc oxide valve plate, behind 300 ℃ of hyperthermia dryings, make high throughflow nano composite material arrester valve piece made.
2. the preparation method of a kind of high throughflow nano composite material arrester valve piece made according to claim 1 is characterized in that described nano zine oxide granularity less than 100nm, and the best is 30 ~ 50nm.Described and the mixed uniformly nanometer additive antimony oxide of nano zine oxide, bismuth oxide, silica, chromium oxide, manganese oxide, its granularity is all less than 100nm, and the best is 30-50nm.
3. the preparation method of a kind of high throughflow nano composite material arrester valve piece made according to claim 1, the addition that it is characterized in that nanometer additive is 5-20%, wherein nano oxidized antimony is 2.5-10%, bismuth oxide is 0.9-5.6%, silica is 0.5-2.4%, chromium oxide is 0.7-1.0%, and manganese oxide is 0.4-1.0%; The optimal addn of nanometer additive is 10-15% (percentage by weight)
4. the preparation method of a kind of high throughflow nano composite material arrester valve piece made according to claim 1, it is characterized in that in the described nano-composite insulating coating nanoscale functional stuffing handled through organic coating, promptly the particle diameter of iron oxide, chromium oxide, zinc oxide, titanium oxide, antimony oxide, bismuth oxide, silica is 50-200nm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
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| WO2006128341A1 (en) * | 2005-06-03 | 2006-12-07 | Henan Jinguan Wangma Information Industrial Co., Ltd | A laminated zno varistor produced by nanometer material and manufacturing method thereof |
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| US20100157492A1 (en) * | 2008-12-23 | 2010-06-24 | General Electric Company | Electronic device and associated method |
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| CN102557733A (en) * | 2011-11-04 | 2012-07-11 | 上海大学 | Method for preparing inorganic insulating coating with high current surge resistance |
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| CN105118591A (en) * | 2015-09-17 | 2015-12-02 | 合肥海畅电气技术有限公司 | Resistance valve plate of lightning arrester |
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| JPS6450503A (en) * | 1987-08-21 | 1989-02-27 | Ngk Insulators Ltd | Voltage-dependent nonlinear resistor |
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| CN102557733B (en) * | 2011-11-04 | 2013-05-08 | 上海大学 | Method for preparing inorganic insulating coating with high current surge resistance |
| CN102557733A (en) * | 2011-11-04 | 2012-07-11 | 上海大学 | Method for preparing inorganic insulating coating with high current surge resistance |
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| CN105118591A (en) * | 2015-09-17 | 2015-12-02 | 合肥海畅电气技术有限公司 | Resistance valve plate of lightning arrester |
| CN105427981A (en) * | 2015-12-25 | 2016-03-23 | 清华大学 | Preparation methods for voltage-sensitive ceramic valve block resistant to large impact current and insulation layer material of voltage-sensitive ceramic valve block |
| CN106409443A (en) * | 2016-12-14 | 2017-02-15 | 国网上海市电力公司 | Insulator with lightning arrester and fault indicator |
| CN106782959A (en) * | 2016-12-14 | 2017-05-31 | 国网上海市电力公司 | It is a kind of can be used as the insulating barrier of the insulator aerial insulated wire of discharge medium |
| CN106747406A (en) * | 2017-02-14 | 2017-05-31 | 爱普科斯电子元器件(珠海保税区)有限公司 | Unleaded insulative ceramic coatings Zinc-Oxide Arrester valve block high and preparation method thereof |
| CN111635257A (en) * | 2020-06-05 | 2020-09-08 | 西安交通大学 | Carbon ceramic linear resistance porous high-resistance coating and preparation method thereof |
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