CN106187177A - A kind of zirconia ceramics insulator and preparation method thereof - Google Patents
A kind of zirconia ceramics insulator and preparation method thereof Download PDFInfo
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- CN106187177A CN106187177A CN201610555520.8A CN201610555520A CN106187177A CN 106187177 A CN106187177 A CN 106187177A CN 201610555520 A CN201610555520 A CN 201610555520A CN 106187177 A CN106187177 A CN 106187177A
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- zirconia
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Abstract
A kind of zirconia ceramics insulator and preparation method thereof, this zirconia ceramics insulator includes zirconia base, the adsorption layer formed on described zirconia base surface, the reverse osmosis permeable layers being positioned on described adsorption layer.Adsorption layer is by a small quantity through the filthy absorption of reverse osmosis permeable layers, avoid remaining in reverse osmosis permeable layers surface and cause the gathering of ion, reverse osmosis permeable layers makes the filth in the external world keep apart with this ceramic insulator, it is to avoid under running voltage effect, formation leakage current flows through at insulator surface and then forms multiple dry district and causes pollution flashover accident.In simultaneous oxidation zirconio body, multiple inorganic matter and silicate make the insulator being made up of this zirconia base be prone to molding, will not produce pore, cracking phenomena when high-temperature calcination, have higher intensity.The zirconia ceramics insulator using this preparation method to prepare is ageing-resistant, anticorrosive, improves properties of product, and guarantees that product safety is stable.
Description
Technical field
The present invention relates to insulator preparing technical field, be specifically related to a kind of zirconia ceramics insulator and preparation side thereof
Method.
Background technology
Insulator, as the important component part of power system, plays support power equipment in AC and DC transmission line of electricity
Important function with electric insulation.The insulator moment of outdoor operation is affected by polluter various in air.When air is wet
When spending less, the pollution layer that insulator surface covers does not shows electric conductivity, and insulator can reliable and secure run.Work as air humidity
Time bigger, the solvable salinity contained in filth is dissolved in water and forms the ion of conduction, forms leakage current under running voltage effect
Flowing through at insulator surface, the heat effect of electric current causes insulator surface to form multiple dry district.The resistance in dry district is much larger than wet district
Resistance, bear higher voltage, cause internal field distortion produce electric arc, the most even develop into and run through the two poles of the earth
Flashover.As can be seen here, how to prevent, reduce the pollution flashover accident of support insulator, how to be effectively improved insulator at severe bar
Flashover Characteristics under part will become the emphasis of support insulator research from now on.
Summary of the invention
The present invention solves the problems referred to above, it is provided that a kind of zirconia ceramics insulator and preparation method thereof so that badly
In the environment of reduce the generation of pollution flashover accident.
The technical problem to be solved uses following technical scheme to realize:
A kind of zirconia ceramics insulator, this ceramic insulator includes zirconia base, on described zirconia base surface
The adsorption layer of upper formation, the reverse osmosis permeable layers being positioned on described adsorption layer.
Described zirconia base is formed by the proportioning raw materials of following weight portion:
Zirconium oxide 97-98%, selenium oxide 0.2-0.3%, aluminium oxide 0.1-0.5%, carborundum 0.6-0.8%, titanium dioxide
Silicon 0.5-0.9%, manganese oxide 0.2-0.4%, vanadic anhydride 0.1-0.3%, zinc oxide 0.2-0.3%, titanium carbide 0.2-
0.5%, aluminium silicate 0.3-0.4%；
Other inorganic oxide, silicate is added so that the insulation being made up of this zirconia base in Zirconium oxide powder
Son is prone to molding, will not produce pore, cracking phenomena when high-temperature calcination, have higher intensity.
Described adsorption layer is formed by the proportioning raw materials of following weight portion:
Bortz powder 20-30 part, cast stone 5-10 part, diabase 4-7 part, apatite 2-5 part, albite 5-8 part, magnetic iron ore
10-15 part；
Will be on a small quantity through the filthy absorption of reverse osmosis permeable layers by this adsorption layer, it is to avoid remain in reverse osmosis permeable layers surface cause from
The gathering of son, when described adsorbent layer thickness is at 4-7mm, had both had preferably adsorption function, and can well play again zirconium oxide
Matrix and the transitional function of reverse osmosis permeable layers.
Described reverse osmosis permeable layers is pressed 1: 1 by white beeswax, silicone oil, tourmaline powder: (0.2-0.5) weight portion forms.
The filth being made the external world by reverse osmosis permeable layers is kept apart with this ceramic insulator, it is to avoid formed under running voltage effect
Leakage current flows through at insulator surface and then forms multiple dry district and causes pollution flashover accident.
Control described reverse osmosis layer thickness at 5-10mm.
A kind of zirconia ceramics insulator preparation method, comprises the following steps:
(1). weigh raw material the mix homogeneously of composition zirconia base, send into continuous powder milling 4-6 in tumbling ball mill
Hour, grinding terminated 200 eye mesh screens and sieved, and obtained zirconia base raw material, remained in the goal again of the raw material on screen cloth
Grinding machine carries out grinding；
(2). by step (1) gained zirconia base raw material with bonding agent by weight 5: (1-2) mixs homogeneously, and obtains bulk
Zirconia base；
(3). the bulk zirconia base in step (2) is become at temperature 400-600 degree Celsius, pressure 10-20 MPa
Type, obtains embryo shape zirconia base；
(4) weigh composition adsorption layer raw material and mix homogeneously is ground to 0.5-1mm, with bonding agent by weight 5: (3-4)
Mix homogeneously is coated in embryo shape zirconia base surface；
(5). the embryo shape zirconia base that surface in step (4) scribbles adsorption layer is carried out under 1000-1100 degree Celsius
Calcining；
(6). the embryo shape zirconia base after calcining in step (5) is carried out cooling annealing, Celsius with 80-100 per hour
Degree rate of temperature fall cooling, so that matrix surface is unlikely to pore, will mix all when matrix surface temperature is down to 20-25 degree Celsius
Even reverse osmosis permeable layers is coated on matrix surface, obtains this zirconia ceramics insulator.
Bonding agent in described step (2), (4) is formed by the proportioning raw materials of following weight portion:
Phenolic resin 5-9 part, polysiloxanes 4-7 part, aluminium oxide powder 1-3 part.
The invention have the benefit that by the bonding adsorption layer in zirconia base surface, adsorption layer arranging reverse osmosis
Layer, adsorption layer is by a small quantity through the filthy absorption of reverse osmosis permeable layers, it is to avoid remains in reverse osmosis permeable layers surface and causes the gathering of ion, instead
Permeable formation makes the filth in the external world keep apart with this ceramic insulator, it is to avoid form leakage current under running voltage effect in insulation
Sub-surface flows through and then forms multiple dry district and causes pollution flashover accident.In simultaneous oxidation zirconio body, multiple inorganic matter and silicate make
The insulator being made up of this zirconia base is prone to molding, will not produce pore, cracking phenomena when high-temperature calcination, have higher
Intensity.The zirconia ceramics insulator using this preparation method to prepare is ageing-resistant, anticorrosive, improves properties of product, and really
Guarantor's product safety is stable.
Detailed description of the invention:
For the technological means making the present invention realize, creation characteristic, reach purpose and be easy to understand with effect, below knot
Close embodiment, the present invention is expanded on further.
Embodiment 1
Weigh respectively:
Zirconium oxide 97 parts, 0.2 part of selenium oxide, aluminium oxide 0.1 part, carborundum 0.6 part, silicon dioxide 0.5 part, manganese oxide
0.2 part, vanadic anhydride 0.1 part, zinc oxide 0.2 part, titanium carbide 0.2 part, aluminium silicate 0.3 part.
Bortz powder 20 parts, cast stone 5 parts, diabase 4 parts, 2 parts of apatite, albite 5 parts, magnetic iron ore 10 parts.
White beeswax 10 parts, silicone oil 10 parts, tourmaline powder 0.2 part.
Embodiment 2
Weigh respectively:
Zirconium oxide 97 parts, 0.2 part of selenium oxide, aluminium oxide 0.3 part, carborundum 0.7 part, silicon dioxide 0.7 part, manganese oxide
0.3 part, vanadic anhydride 0.2 part, zinc oxide 0.2 part, titanium carbide 0.4 part, aluminium silicate 0.3 part.
Bortz powder 25 parts, cast stone 8 parts, diabase 6 parts, 4 parts of apatite, albite 6 parts, magnetic iron ore 13 parts.
White beeswax 10 parts, silicone oil 10 parts, tourmaline powder 0.4 part.
Embodiment 3
Weigh respectively:
Zirconium oxide 98 parts, 0.3 part of selenium oxide, aluminium oxide 0.5 part, carborundum 0.8 part, silicon dioxide 0.9 part, manganese oxide
0.4 part, vanadic anhydride 0.3 part, zinc oxide 0.3 part, titanium carbide 0.5 part, aluminium silicate 0.4 part.
Bortz powder 30 parts, cast stone 10 parts, diabase 7 parts, 5 parts of apatite, albite 8 parts, magnetic iron ore 15 parts.
White beeswax 10 parts, silicone oil 10 parts, tourmaline powder 0.5 part.
The preparation method of above-described embodiment:
(1). by raw material the mix homogeneously of composition zirconia base, send into continuous powder milling 4-6 in tumbling ball mill little
Time, grinding terminated 200 eye mesh screens and sieved, obtained zirconia base raw material, remained in the raw material on screen cloth back into ball milling
Machine carries out grinding；
(2). by step (1) gained zirconia base raw material with bonding agent by weight 5: (1-2) mixs homogeneously, and obtains bulk
Zirconia base；
(3). the bulk zirconia base in step (2) is become at temperature 400-600 degree Celsius, pressure 10-20 MPa
Type, obtains embryo shape zirconia base；
(4) weigh composition adsorption layer raw material and mix homogeneously is ground to 0.5-1mm, with bonding agent by weight 5: (3-4)
Mix homogeneously is coated in embryo shape zirconia base surface；
(5). the embryo shape zirconia base that surface in step (4) scribbles adsorption layer is carried out under 1000-1100 degree Celsius
Calcining；
(6). the embryo shape zirconia base after calcining in step (5) is carried out cooling annealing, Celsius with 80-100 per hour
Degree rate of temperature fall cooling, so that matrix surface is unlikely to pore, will mix all when matrix surface temperature is down to 20-25 degree Celsius
Even reverse osmosis permeable layers is coated on matrix surface, obtains this zirconia ceramics insulator.
Bonding agent in described step (2), (4) is formed by the proportioning raw materials of following weight portion:
Phenolic resin 5-9 part, polysiloxanes 4-7 part, aluminium oxide powder 1-3 part.
The ultimate principle of the present invention, principal character and advantages of the present invention have more than been shown and described.The technology of the industry
The personnel only present invention it should be appreciated that the present invention is not restricted to the described embodiments, described in above-described embodiment and description
Preference, be not intended to limit the present invention, without departing from the spirit and scope of the present invention, the present invention also has various
Changes and improvements, these changes and improvements both fall within scope of the claimed invention.Claimed scope is by institute
Attached claims and equivalent thereof define.
Claims (8)
1. a zirconia ceramics insulator, it is characterised in that: this zirconia ceramics insulator includes zirconia base, described
The adsorption layer formed on zirconia base surface, the reverse osmosis permeable layers being positioned on described adsorption layer.
2. a kind of zirconia ceramics insulator as claimed in claim 1, it is characterised in that described zirconia base is by following heavy
The proportioning raw materials of amount part forms:
Zirconium oxide 97-98%, selenium oxide 0.2-0.3%, aluminium oxide 0.1-0.5%, carborundum 0.6-0.8%, silicon dioxide
0.5-0.9%, manganese oxide 0.2-0.4%, vanadic anhydride 0.1-0.3%, zinc oxide 0.2-0.3%, titanium carbide 0.2-
0.5%, aluminium silicate 0.3-0.4%.
3. a kind of zirconia ceramics insulator as claimed in claim 1, it is characterised in that described adsorption layer is by following weight portion
Proportioning raw materials form:
Bortz powder 20-30 part, cast stone 5-10 part, diabase 4-7 part, apatite 2-5 part, albite 5-8 part, magnetic iron ore 10-
15 parts.
4. a kind of zirconia ceramics insulator as claimed in claim 1, it is characterised in that: described reverse osmosis permeable layers is by white beeswax, silicon
Oil, tourmaline powder is by 1: 1: (0.2-0.5) weight portion forms.
5. a kind of zirconia ceramics insulator as described in claim 1 or 3, it is characterised in that: described adsorbent layer thickness is at 4-
7mm。
6. a kind of zirconia ceramics insulator as described in claim 1 or 4, it is characterised in that: described reverse osmosis layer thickness exists
5-10mm。
7. a zirconia ceramics insulator preparation method, comprises the following steps:
(1). weigh raw material the mix homogeneously of composition zirconia base, send into continuous powder milling 4-6 hour in tumbling ball mill,
Grinding terminated 200 eye mesh screens and sieved, and obtained zirconia base raw material, remained in raw material on screen cloth back in ball mill
Carry out grinding；
(2). by step (1) gained zirconia base raw material with bonding agent by weight 5: (1-2) mixs homogeneously, obtain bulk oxidation
Zirconio body；
(3). by the bulk zirconia base in step (2) at temperature 400-600 degree Celsius, 10-20 MPa of compacted under of pressure, obtain
Embryo shape zirconia base；
(4) weigh composition adsorption layer raw material and mix homogeneously is ground to 0.5-1mm, with bonding agent by weight 5: (3-4) mixes
It is coated uniformly on embryo shape zirconia base surface；
(5). the embryo shape zirconia base that surface in step (4) scribbles adsorption layer is calcined under 1000-1100 degree Celsius；
(6). the embryo shape zirconia base after calcining in step (5) is carried out cooling annealing, with 80-100 degree Celsius per hour fall
Temperature speed cooling, is coated in matrix surface by the reverse osmosis permeable layers of mix homogeneously when matrix surface temperature is down to 20-25 degree Celsius
On, obtain this zirconia ceramics insulator.
8. a kind of zirconia ceramics insulator preparation method as claimed in claim 7, it is characterised in that described step (2),
(4) bonding agent in is formed by the proportioning raw materials of following weight portion:
Phenolic resin 5-9 part, polysiloxanes 4-7 part, aluminium oxide powder 1-3 part.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610555520.8A CN106187177A (en) | 2016-07-14 | 2016-07-14 | A kind of zirconia ceramics insulator and preparation method thereof |
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| CN107216120A (en) * | 2017-06-28 | 2017-09-29 | 合肥市闵葵电力工程有限公司 | A kind of ceramic insulator and preparation method thereof |
| CN107555990A (en) * | 2017-09-12 | 2018-01-09 | 潮州三环（集团）股份有限公司 | A kind of whiteware |
| CN107903061A (en) * | 2017-12-13 | 2018-04-13 | 萍乡市旭华电瓷电器制造有限公司 | A kind of production method of zirconia ceramic insulator |
| CN110342929A (en) * | 2019-08-21 | 2019-10-18 | 江西誉鹏电气集团有限公司 | A kind of ageing-resistant ceramic insulator and preparation method thereof |
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| CN110342929B (en) * | 2019-08-21 | 2021-11-23 | 江西誉鹏电气集团有限公司 | Anti-aging ceramic insulator and preparation method thereof |
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