CN106653242B - A kind of insulator of ultra-high-tension power transmission line and preparation method thereof - Google Patents
A kind of insulator of ultra-high-tension power transmission line and preparation method thereof Download PDFInfo
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- CN106653242B CN106653242B CN201610983853.0A CN201610983853A CN106653242B CN 106653242 B CN106653242 B CN 106653242B CN 201610983853 A CN201610983853 A CN 201610983853A CN 106653242 B CN106653242 B CN 106653242B
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B17/00—Insulators or insulating bodies characterised by their form
- H01B17/38—Fittings, e.g. caps; Fastenings therefor
- H01B17/40—Cementless fittings
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B19/00—Apparatus or processes specially adapted for manufacturing insulators or insulating bodies
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Abstract
A kind of insulator of ultra-high-tension power transmission line and preparation method thereof, the insulator includes insulation daughter and is arranged on two fixtures at insulation daughter both ends, length direction along insulation daughter has some gamps and umbellule around its surface distributed, and gamp is intervally arranged with umbellule, insulation daughter is fired by base-material, inserts and perforating agent and formed, base-material is made up of kaolin, kibushi clay and quartz, inserts is made up of kyanite fine powder, Reactive alumina and modified manometer silicon dioxide, and perforating agent is made up of carbide fine powder, sodium acid carbonate and soda lime.The insulation daughter that the present invention fires may be dipped in inorganic or organic insulation, so that these insulating materials are filled into the anti-electric breakdown performance that insulation daughter is further enhanced in the stomata in insulation daughter.
Description
Technical field
The present invention relates to the high voltage power transmission of power system, the insulator of specifically a kind of ultra-high-tension power transmission line and
Its preparation method.
Background technology
Insulator has been insulating effect and the electrical equipment being mechanically fixed, and important work can be played in overhead transmission line
With.Insulator is used for electric pole between one's early years, and the one end for being slowly developed in high type high-tension bus-bar connection tower has hung many plate-likes
Insulator, it is to increase creep age distance, is just insulator.Insulator quantity in transmission line of electricity is most, belongs to most thin
Weak link, cheap, about the 2% of circuit cost, is one of most important link of transmission line of electricity.
Have to high-tension insulator used in ultra-high-tension power transmission line claimed below：It is divided into electrical load and electric property will
Ask, the synergy of mechanical load and mechanical property requirements, thermic load and performance requirements, environmental activity factor and various loads
And the requirement to insulator；Insulator should not the various electromechanical stress caused by environment and electric load condition change
And fail, otherwise insulator would not produce great effect, will damage use and the service life of whole piece circuit.
Existing insulator is generally made up of glass or ceramics, is compared with disc suspension ceramic insulator, glass insulator
Manufacturing process circuit is short, is easy to mechanization to produce in enormous quantities, but self-destruction rate is higher（General self-destruction rate is below 2/10000ths）, shadow
Ring the safety of transmission line of electricity.
The content of the invention
It is an object of the invention to provide a kind of insulator of ultra-high-tension power transmission line and preparation method thereof, pass through party's legal system
The ceramic insulator of work, not only weight, which is compared to existing ceramic insulator, a reduction, and its anti-electrical breakdown performance with
And the adaptability in various environment is greatly improved, insulator is greatly improved for ultra-high-tension power transmission line
Security performance.
The present invention is that technical scheme is used by realizing above-mentioned technical purpose：A kind of insulation of ultra-high-tension power transmission line
Son, including insulation daughter and two fixtures for being arranged on insulation daughter both ends, along the length direction of insulation daughter around its table
EDS maps have some gamps and umbellule, and gamp is intervally arranged with umbellule, and the insulation daughter is by base-material, inserts and perforating agent
Firing forms, and according to weight ratio, the base-material is by quartzy group of 30-32 parts kaolin, the kibushi clay of 8-10 parts and 16-18 parts
Into inserts is no more than 5 microns of activated alumina by kyanite fine powder of 4-5 parts fineness no more than 45 microns, 5-7 parts fineness
Micro mist and the modified manometer silicon dioxide of 3-4 parts composition, perforating agent by 7-9 parts fineness no more than 30 microns carbide fine powder,
The sodium acid carbonate of 1-2 parts and the soda lime composition of 2-3 parts；The modified manometer silicon dioxide is commercially available nano silicon and its
Weight 3-5% surface modifier is mixed to get, and the surface modifier is by barium hydroxide, sodium carbonate and KH550 according to weight ratio
3-4:1-2:30 ratio mixes.
The potassium chloride of 0.2-0.4 parts is additionally added in the surface modifier.
Modification crystal whisker of hexa potassium titanate in the inserts also containing 0.2-0.4 parts, the modified crystal whisker of hexa potassium titanate are
Commercially available crystal whisker of hexa potassium titanate is with dodecyl silane coupler, titanate coupling agent, nano titanium oxide according to weight than 100：
3:2:8-10。
Potassium manganate in the perforating agent also containing 0.5-0.7 parts.
The preparation method of the insulator of above-mentioned ultra-high-tension power transmission line, it is first according to above-mentioned requirements and chooses each raw material and to original
Material is handled, and is then sent into die cast in mould after batch mixing, milling in proportion, finally sintering obtains product, described right
Raw material carries out processing and referred to, commercially available nano silicon and its weight 3-5% surface modifier are mixed to get into modified Nano two
Silica, the surface modifier compare 3-4 by barium hydroxide, sodium carbonate and KH550 according to weight:1-2:30 ratio mixing and
Into.
The batch mixing, milling refer to, add the water of each raw material gross weight 35%, each raw material into mixed each raw material successively
The carbon dust of the acetone of gross weight 2%, the vegetable oil for industry purpose of each raw material gross weight 1% and each raw material gross weight 0.8%, then mix is uniform and grinds
It is milled into the powder that fineness is 300 mesh.
The sintering is divided into low-temperature zone, middle-temperature section and oxidation and sinter section three parts, wherein, low-temperature zone is to instigate in-furnace temperature
420 DEG C are uniformly increased to from normal temperature in 6h, and keeps temperature 1-2h, in the process, oxygen content is not higher than in holding furnace
4%；
The middle-temperature section refers to, in-furnace temperature is uniformly increased to 1050 DEG C in 4h from 420 DEG C, in the process, keeps
Oxygen content is not less than 45% in stove；
The oxidation and sinter section refers to, in-furnace temperature is uniformly increased to 1450 DEG C in 2h from 1050 DEG C, and keeps the temperature
3h is spent, in the process, oxygen content is not less than 45% in holding furnace.
In the present invention, using the convenient source kaolin of firing ceramics, kibushi clay and quartz as major ingredient, wherein being mixed into carbon
SiClx, sodium acid carbonate and soda lime both can ensure that as perforating agent and contained some opening stomatas in the ceramics after burning till（Or
Open pore）, nor its intensity can be influenceed；Oxidation reaction easily occurs in high temperature oxidative atmosphere for carborundum：SiC+2O2
→CO2+SiO2, the reaction start temperature is higher, and 1000 DEG C start obvious oxidation, and particle is thinner, then oxidation rate is faster, reaction
Product CO2Effusion easily cause ceramic body surface and form open pore, and reaction product SiO2With greater activity, with oxygen
Change reactive aluminum generation mullite, so as to form mullite reinforcement in ceramics；Sodium acid carbonate high temperature generates sodium carbonate, while alkali
Sodium hydroxide and potassium hydroxide in lime can't participate in any reaction at high temperature, and because its fusing point is high, so high
The lower disperse of temperature is in whole system, when these particles are entered in stomata and during stomata edge, can increase ceramic surface and stomata
Area, so as to when it is combined with other materials, there is provided stronger adhesion；Meanwhile the present invention in inserts at high temperature,
Kyanite fine powder therein, it both can ensure that and generate more mullite phase, ensure the mechanical strength of product, kyanite is from 1100 DEG C
Left and right starts to decompose, generates mullite and SiO2, notable decomposition and inversion after 1300 DEG C, because mullitization reaction is accompanied by
16-18% volumetric expansion, therefore can also fill due to hole caused by Oxidation of SiC, single hole is diminished, overall hole
Rate reduces, and can change shape and the distribution of ceramic inner pore.
In the present invention, nano level SiO is allowed as catalyst by the use of barium hydroxide and sodium carbonate mixing2The surface of particle
It can be acted on by hydroxyl, so as to contain a number of oxygen-containing functional group, add nanoscale SiO2The relevant table of particle
Face compatibility, in nanoscale SiO2When particle is sufficiently mixed as inserts and remaining raw material, because SiO2Particle very little, and compare
Surface area is big, and the structure of granular causes rest materials to increase with its contact area, makes SiO2Particle can be in material
It is even scattered, consequently facilitating SiO2Chemical bonding or physical bond occurs at high temperature with remaining material.It is in addition, dispersed
Nanoscale SiO2Equivalent to " anchor point ", it can make the reinforcing matrix that is generated under hot environment in connection, be rushed by external force
Hit under effect, the effect of " stress concentration " can be produced so that some matrixes " surrender " around it simultaneously absorb more deformation
Work(, " pinning-climb up and over " effect can be also produced in addition, the increase crackle resistance suffered in extension, consumes work of deformation, from
And make the increase of its toughness.
In the present invention, after the completion of insulation daughter sintering, it can be placed in the nitrile rubber of thawing, and keep melting
State soaks 20-30min, so that its surface forms electro-insulating rubber layer；
It is of course also possible in being placed on the mixture that cement mortar, plastic powders and glass fibre are formed, and cement mortar,
The weight of plastic powders and glass fibre ratio is 10:1:2, cement mortar is using cement and water according to weight than 1:10-20 ratio
It is mixed to get.
Beneficial effect：The present invention compared with prior art, possesses advantages below：
1）The present invention is using the convenient source kaolin of firing ceramics, kibushi clay and quartz as major ingredient, wherein being mixed into carbon
SiClx, sodium acid carbonate and soda lime both can ensure that as perforating agent and contained some opening stomatas in the ceramics after burning till（Or
Open pore）, nor its intensity can be influenceed, by the aquamaine stone flour for adding high temperature volumetric expansion so that opening gas
Hole is obviously reduced, so as to form tiny stomata with surface inside ceramics, so as to help the insulation daughter after firing and remaining
The combination of insulating materials, such as plastics and rubber；
2）The present invention in addition to adding conventional water, is also added into acetone, vegetable oil for industry purpose and carbon dust in batch mixing,
It after both material mixings, can slowly gasify in low-temperature zone, so as to depart from unpainted clay idol, and small gas formed on unpainted clay idol surface
Hole, and the viscosity of compound can be strengthened, surface is cracked when preventing from firing causes to damage in follow-up fire；
3）In the present invention, it is dispersed after modified and is obtained with the bond strength at matrix, interface for nano silicon
Enhancing, when it is as inserts, under its hot conditions in sintering, the mullite reinforcement that is formed is tight when can be with sintering
Close combination, globality and intensity are increased substantially, and can also made therein as the presence of similar nucleator at high temperature
Aluminum oxide and silica can preferably form mullite Reinforcement structure；
4）The insulation daughter that the present invention fires may be dipped in inorganic or organic insulation, so that these insulation materials
Material is filled into the anti-electric breakdown performance that insulation daughter is further enhanced in the stomata in insulation daughter.
Embodiment
With reference to specific embodiment, the present invention is further elaborated, and raw material used is in following embodiment
The conventional raw material in this area either from can be commercially available on the market.
Embodiment 1
A kind of insulator of ultra-high-tension power transmission line, including insulation daughter and two fixations for being arranged on insulation daughter both ends
Part, the length direction along insulation daughter has some gamps and umbellule around its surface distributed, and gamp is intervally arranged with umbellule, institute
State insulation daughter and fired by base-material, inserts and perforating agent and form, according to weight ratio, the base-material by 30 parts of kaolin, 8 parts
Kibushi clay and 16 parts of quartz composition, inserts are not surpassed by kyanite fine powder of 4 parts of fineness no more than 45 microns, 5 parts of fineness
5 microns of Reactive alumina and 3 parts of modified manometer silicon dioxide composition is crossed, perforating agent is micro- no more than 30 by 7 parts of fineness
Carbide fine powder, 1 part of sodium acid carbonate and 2 parts of the soda lime composition of rice；The modified manometer silicon dioxide is commercially available nanometer
Silica and the surface modifier of its weight 3% are mixed to get, and the surface modifier is by barium hydroxide, sodium carbonate and KH550
According to weight than 3:1:30 ratio mixes；
The preparation method of the insulator of above-mentioned ultra-high-tension power transmission line, it is first according to above-mentioned requirements and chooses each raw material and to original
Material is handled, and is then sent into die cast in mould after batch mixing, milling in proportion, finally sintering obtains product, described right
Raw material carries out processing and referred to, the surface modifier of commercially available nano silicon and its weight 3% is mixed to get into modified nano-silica
SiClx, the surface modifier is by barium hydroxide, sodium carbonate and KH550 according to weight ratio 3:1:30 ratio mixes；
The batch mixing, milling refer to, add the water of each raw material gross weight 35%, each raw material into mixed each raw material successively
The carbon dust of the acetone of gross weight 2%, the vegetable oil for industry purpose of each raw material gross weight 1% and each raw material gross weight 0.8%, then mix is uniform and grinds
It is milled into the powder that fineness is 300 mesh；
The sintering is divided into low-temperature zone, middle-temperature section and oxidation and sinter section three parts, wherein, low-temperature zone is to instigate in-furnace temperature
420 DEG C are uniformly increased to from normal temperature in 6h, and keeps temperature 1h, in the process, oxygen content is not higher than 4% in holding furnace；
The middle-temperature section refers to, in-furnace temperature is uniformly increased to 1050 DEG C in 4h from 420 DEG C, in the process, keeps
Oxygen content is not less than 45% in stove；
The oxidation and sinter section refers to, in-furnace temperature is uniformly increased to 1450 DEG C in 2h from 1050 DEG C, and keeps the temperature
3h is spent, in the process, oxygen content is not less than 45% in holding furnace.
Above be the present embodiment basic embodiment, can more than on the basis of further improved, optimized and limited：
Such as, 0.2 part of potassium chloride is additionally added in the surface modifier；
And for example, also it is containing 0.2 part of modification crystal whisker of hexa potassium titanate, the modified crystal whisker of hexa potassium titanate in the inserts
Commercially available crystal whisker of hexa potassium titanate is with dodecyl silane coupler, titanate coupling agent, nano titanium oxide according to weight than 100：
3:2:8；
For another example, also containing 0.5 part of potassium manganate in the perforating agent.
Embodiment 2
A kind of insulator of ultra-high-tension power transmission line, including insulation daughter and two fixations for being arranged on insulation daughter both ends
Part, the length direction along insulation daughter has some gamps and umbellule around its surface distributed, and gamp is intervally arranged with umbellule, institute
State insulation daughter and fired by base-material, inserts and perforating agent and formed, according to weight ratio, the base-material by 32 parts of kaolin, 10 parts
Kibushi clay and 18 parts quartz composition, inserts by 5 parts of fineness no more than 45 microns kyanite fine powder, 7 parts of fineness not
Reactive alumina and 4 parts of modified manometer silicon dioxide composition, perforating agent more than 5 microns are no more than 30 by 9 parts of fineness
Carbide fine powder, 2 parts of sodium acid carbonate and 3 parts of the soda lime composition of micron；The modified manometer silicon dioxide is received to be commercially available
Rice silica and the surface modifier of its weight 5% be mixed to get, the surface modifier by barium hydroxide, sodium carbonate and
KH550 is according to weight than 4:2:30 ratio mixes；
The preparation method of the insulator of above-mentioned ultra-high-tension power transmission line, it is first according to above-mentioned requirements and chooses each raw material and to original
Material is handled, and is then sent into die cast in mould after batch mixing, milling in proportion, finally sintering obtains product, described right
Raw material carries out processing and referred to, the surface modifier of commercially available nano silicon and its weight 5% is mixed to get into modified nano-silica
SiClx, the surface modifier is by barium hydroxide, sodium carbonate and KH550 according to weight ratio 4:2:30 ratio mixes；
The batch mixing, milling refer to, add the water of each raw material gross weight 35%, each raw material into mixed each raw material successively
The carbon dust of the acetone of gross weight 2%, the vegetable oil for industry purpose of each raw material gross weight 1% and each raw material gross weight 0.8%, then mix is uniform and grinds
It is milled into the powder that fineness is 300 mesh；
The sintering is divided into low-temperature zone, middle-temperature section and oxidation and sinter section three parts, wherein, low-temperature zone is to instigate in-furnace temperature
420 DEG C are uniformly increased to from normal temperature in 6h, and keeps temperature 2h, in the process, oxygen content is not higher than 4% in holding furnace；
The middle-temperature section refers to, in-furnace temperature is uniformly increased to 1050 DEG C in 4h from 420 DEG C, in the process, keeps
Oxygen content is not less than 45% in stove；
The oxidation and sinter section refers to, in-furnace temperature is uniformly increased to 1450 DEG C in 2h from 1050 DEG C, and keeps the temperature
3h is spent, in the process, oxygen content is not less than 45% in holding furnace.
Above be the present embodiment basic embodiment, can more than on the basis of further improved, optimized and limited：
Such as, 0.4 part of potassium chloride is additionally added in the surface modifier；
And for example, also it is containing 0.4 part of modification crystal whisker of hexa potassium titanate, the modified crystal whisker of hexa potassium titanate in the inserts
Commercially available crystal whisker of hexa potassium titanate is with dodecyl silane coupler, titanate coupling agent, nano titanium oxide according to weight than 100：
3:2:10；
For another example, also containing 0.7 part of potassium manganate in the perforating agent.
Embodiment 3
A kind of insulator of ultra-high-tension power transmission line, including insulation daughter and two fixations for being arranged on insulation daughter both ends
Part, the length direction along insulation daughter has some gamps and umbellule around its surface distributed, and gamp is intervally arranged with umbellule, institute
State insulation daughter and fired by base-material, inserts and perforating agent and form, according to weight ratio, the base-material by 31 parts of kaolin, 9 parts
The quartz composition of kibushi clay and 17 parts, inserts by kyanite fine powder of 4.5 parts of fineness no more than 45 microns, 6 parts of fineness not
Reactive alumina and 3.5 parts of modified manometer silicon dioxide composition, perforating agent more than 5 microns are no more than by 8 parts of fineness
30 microns of carbide fine powder, 1.5 parts of sodium acid carbonate and 2.5 parts of soda lime composition；The modified manometer silicon dioxide is
Commercially available nano silicon and the surface modifier of its weight 4% are mixed to get, and the surface modifier is by barium hydroxide, carbonic acid
Sodium and KH550 are according to weight ratio 3.5:1.5:30 ratio mixes；
The preparation method of the insulator of above-mentioned ultra-high-tension power transmission line, it is first according to above-mentioned requirements and chooses each raw material and to original
Material is handled, and is then sent into die cast in mould after batch mixing, milling in proportion, finally sintering obtains product, described right
Raw material carries out processing and referred to, the surface modifier of commercially available nano silicon and its weight 4% is mixed to get into modified nano-silica
SiClx, the surface modifier is by barium hydroxide, sodium carbonate and KH550 according to weight ratio 3.5:1.5:30 ratio mixing and
Into；
The batch mixing, milling refer to, add the water of each raw material gross weight 35%, each raw material into mixed each raw material successively
The carbon dust of the acetone of gross weight 2%, the vegetable oil for industry purpose of each raw material gross weight 1% and each raw material gross weight 0.8%, then mix is uniform and grinds
It is milled into the powder that fineness is 300 mesh；
The sintering is divided into low-temperature zone, middle-temperature section and oxidation and sinter section three parts, wherein, low-temperature zone is to instigate in-furnace temperature
420 DEG C are uniformly increased to from normal temperature in 6h, and keeps temperature 1.5h, in the process, oxygen content is not higher than in holding furnace
4%；
The middle-temperature section refers to, in-furnace temperature is uniformly increased to 1050 DEG C in 4h from 420 DEG C, in the process, keeps
Oxygen content is not less than 45% in stove；
The oxidation and sinter section refers to, in-furnace temperature is uniformly increased to 1450 DEG C in 2h from 1050 DEG C, and keeps the temperature
3h is spent, in the process, oxygen content is not less than 45% in holding furnace.
Above be the present embodiment basic embodiment, can more than on the basis of further improved, optimized and limited：
Such as, 0.3 part of potassium chloride is additionally added in the surface modifier；
And for example, also it is containing 0.3 part of modification crystal whisker of hexa potassium titanate, the modified crystal whisker of hexa potassium titanate in the inserts
Commercially available crystal whisker of hexa potassium titanate is with dodecyl silane coupler, titanate coupling agent, nano titanium oxide according to weight than 100：
3:2:9；
For another example, also containing 0.6 part of potassium manganate in the perforating agent.
Contrast test
Method according to 1-3 of the embodiment of the present invention prepares three identical insulators of profile, and numbered samples respectively
1st, sample 2, sample 3, then prepared in addition with the method for the present invention identical with sample 1, sample 2, the sample topography of sample 3
Insulator, sample 4 is designated as, and commercially available nano silicon is used in sample 4, and the method without the present invention is changed
Property；Method according to sample 4 is prepared prepares sample 5, and modified manometer silicon dioxide is used in sample 5, but the modification is received
Rice silica compared with the method for modifying of the present invention, does not add sodium carbonate when being modified；
Electrical breakdown experiment is carried out under the same conditions to above sample respectively, when voltage is 10KV, the insulator of sample 4
It is breakdown；
When voltage is increased to 18KV, sample 5 is breakdown；
When voltage continues to be increased to 21KV, sample 1 is breakdown；
When voltage continues to be increased to 23KV, sample 3 is breakdown；
When voltage continues to be increased to 25KV, sample 2 is breakdown.
Claims (7)
1. a kind of insulator of ultra-high-tension power transmission line, including insulation daughter and two fixations for being arranged on insulation daughter both ends
Part, the length direction along insulation daughter has some gamps and umbellule around its surface distributed, and gamp is intervally arranged with umbellule, its
It is characterised by：The insulation daughter is fired by base-material, inserts and perforating agent to be formed, and after the completion of firing, is placed on thawing
Nitrile rubber in, and keep melting state to soak 20-30min so that its surface forms electro-insulating rubber layer, according to weight ratio,
The base-material is made up of the quartz of 30-32 parts kaolin, the kibushi clay of 8-10 parts and 16-18 parts, and inserts is by 4-5 part fineness
The modification of the Reactive alumina and 3-4 parts of kyanite fine powder, 5-7 parts fineness no more than 5 microns no more than 45 microns is received
Rice silica composition, perforating agent is by carbide fine powder of 7-9 parts fineness no more than 30 microns, the sodium acid carbonate and 2-3 of 1-2 parts
The soda lime composition of part；The modified manometer silicon dioxide is the surface modifier of commercially available nano silicon and its weight 3-5%
It is mixed to get, the surface modifier compares 3-4 by barium hydroxide, sodium carbonate and KH550 according to weight:1-2:30 ratio mixing
Form.
A kind of 2. insulator of ultra-high-tension power transmission line according to claim 1, it is characterised in that：The surface modifier
In be additionally added the potassium chloride of 0.2-0.4 parts.
A kind of 3. insulator of ultra-high-tension power transmission line according to claim 1, it is characterised in that：In the inserts also
Modification crystal whisker of hexa potassium titanate containing 0.2-0.4 parts, the modified crystal whisker of hexa potassium titanate are commercially available crystal whisker of hexa potassium titanate and 12
Alkyl silane coupling agent, titanate coupling agent, nano titanium oxide are according to weight than 100：3:2:8-10 is mixed.
A kind of 4. insulator of ultra-high-tension power transmission line according to claim 1, it is characterised in that：In the perforating agent also
Potassium manganate containing 0.5-0.7 parts.
5. a kind of preparation method of the insulator of ultra-high-tension power transmission line according to claim 1, being first according to right will
Ask 1 requirement to choose each raw material and handle raw material, be then sent into die cast in mould after batch mixing, milling in proportion,
Finally sintering obtains product, it is characterised in that：It is described processing is carried out to raw material to refer to, commercially available nano silicon is heavy with it
Amount 3-5% surface modifier is mixed to get modified manometer silicon dioxide, the surface modifier by barium hydroxide, sodium carbonate and
KH550 compares 3-4 according to weight:1-2:30 ratio mixes.
A kind of 6. preparation method of the insulator of ultra-high-tension power transmission line according to claim 5, it is characterised in that：It is described
Batch mixing, milling refer to, added successively into mixed each raw material the water of each raw material gross weight 35%, each raw material gross weight 2% acetone,
The carbon dust of the vegetable oil for industry purpose of each raw material gross weight 1% and each raw material gross weight 0.8%, then mix uniformly and grind and fineness is made is
The powder of 300 mesh.
A kind of 7. preparation method of the insulator of ultra-high-tension power transmission line according to claim 5, it is characterised in that：It is described
Sintering is divided into low-temperature zone, middle-temperature section and oxidation and sinter section three parts, wherein, low-temperature zone is to instigate in-furnace temperature equal in 6h from normal temperature
It is even to be increased to 420 DEG C, and temperature 1-2h is kept, in the process, oxygen content is not higher than 4% in holding furnace；
The middle-temperature section refers to, in-furnace temperature is uniformly increased to 1050 DEG C in 4h from 420 DEG C, in the process, in holding furnace
Oxygen content is not less than 45%；
The oxidation and sinter section refers to, in-furnace temperature is uniformly increased to 1450 DEG C in 2h from 1050 DEG C, and keeps temperature 3h,
In the process, oxygen content is not less than 45% in holding furnace.
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| CN111099885B (en) * | 2019-12-30 | 2022-05-31 | 大莲电瓷（福建）有限公司 | High-voltage insulator blank formula, preparation process and preparation process of insulator porcelain piece |
| CN114613558A (en) * | 2022-03-17 | 2022-06-10 | 醴陵市高力特电瓷电器有限公司 | Toughening column type porcelain insulator and preparation method thereof |
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| CN102786289A (en) * | 2012-09-05 | 2012-11-21 | 江苏南瓷绝缘子有限公司 | High-alumina direct current porcelain insulator and preparation method thereof |
| CN105038758B (en) * | 2015-07-13 | 2017-12-29 | 洛阳赛罗帕陶瓷科技有限公司 | A kind of porous petroleum fracturing propping agent and preparation method thereof |
| CN105529117A (en) * | 2015-08-23 | 2016-04-27 | 国网山东省电力公司临沂供电公司 | Extra-high voltage suspension composite rod insulator |
| CN106045563B (en) * | 2016-06-08 | 2018-11-27 | 郏县宏大瓷业有限公司 | A kind of light blue pottery and its method for cooking |
| CN105845286B (en) * | 2016-06-15 | 2017-11-03 | 江苏南瓷绝缘子股份有限公司 | It is a kind of for rod insulator porcelain composite insulator of railway and preparation method thereof |
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2016
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