CN101544509A - Method for selecting and preparing raw materials of ordinary porcelain suspension insulator glaze - Google Patents
Method for selecting and preparing raw materials of ordinary porcelain suspension insulator glaze Download PDFInfo
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- CN101544509A CN101544509A CN200910102491A CN200910102491A CN101544509A CN 101544509 A CN101544509 A CN 101544509A CN 200910102491 A CN200910102491 A CN 200910102491A CN 200910102491 A CN200910102491 A CN 200910102491A CN 101544509 A CN101544509 A CN 101544509A
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Abstract
The invention provides a method for selecting and preparing raw materials of ordinary porcelain suspension insulator glaze. The glaze for ceramic-insulating insulator green bodies can be prepared from kaolinite-type clay, quartz-type clay, talc, feldspar, refined quartz and wollastonite. The method is characterized in that the kaolinite-type clay accounts for 10 to 15 percent; the quartz-type clay accounts for 15 to 25 percent; the talc accounts for 5 to 12 percent; the feldspar accounts for 25 to 40 percent; the refined quartz accounts for 10 to 20 percent; the wollastonite accounts for 5 to 15 percent; the particle size of clay raw materials is between 20 and 40 meshes; the particle size of the other raw materials is between 180 and 200 meshes; the selected raw materials and the prepared glaze can increase the strength of a glazed ceramic green body by 25 to 40 percent; and the sintering temperature of a glazed ceramic insulator is between 1,200 and 1,350 DEG C.
Description
Technical field
The present invention relates to a kind of alumino-silicate materials, be specially adapted to the transmission line of alternation current and select for use and the preparation method with raw materials of ordinary porcelain suspension insulator glaze.
Background technology
Strategy implementation along with China's " transferring electricity from the west to the east, interconnected, north and south, the whole nation supply mutually ", country is to the great attention of ultra-high voltage, extra-high voltage technical development and the home-made equipment that matches, the high tonnage of following China, large vol long-distance transmission circuit get more and more, the demand in the used for transmission line suspended porcelain insulator future that matches with it also increases thereupon, and according to the statistics made by the departments concerned: domestic annual requirement to suspended porcelain insulator is about ten million ton.
Suspended porcelain insulator is that a kind of porcelain body is based on glassy phase by multiple clay class starting material mixing, nearly 20 kinds of mineral compositions, through the alumino-silicate materials that the prepared and the sintering of complexity forms, and crystallization phases has corundum, mullite, quartz and feldspar etc.It is high pressure resistant, acidproof, anticorrosive and high transmitting line that is used to of intensity with it, is referred to as " lifeline " of transmitting line.
Its core of porcelain insulator is insulation and supports, no matter is organic or its task of the insulator of inorganic materials is all identical.The insulation task is to finish jointly with transmitting line ambient air basically.So what be concerned about most when in GB and International Power committee (IEC) the insulator pattern being checked is that some strength grades can how play insulating effect under the condition, i.e. insulation breakdown.Porcelain insulator is in the transmitting line operational process, and insulation will be destroyed when strength of electric field was raised to some values, is referred to as to insulate breakdown or discharge.Its porcelain of porcelain insulator is a hard brittle material, and the intensity of bearing stress in transmitting line is to bear tens of times of tensile stress, and stressed be many-sided, weight, tension force, regelation weight, wind-force, vibration and the electric power etc. of transmission pressure are arranged.For porcelain insulator, must possess higher intensity as bending strength, tensile strength and electromechanical failure load or the like, more intensity is to act on simultaneously with electromechanical properties, normally examine the intensity of porcelain insulator with dynamo-electric rupture test, the porcelain performance of insulator depends on the selection and the technology of raw material types.
The porcelain body part of porcelain insulator mainly is made up of two portions, i.e. porcelain base and enamel.And the enamel choices of raw materials is most important to the bulk strength of porcelain body, and in fact to relate to content more for the work of enamel mineralogy, and research contents is mainly reflected in civilian enamel.China's traditional ceramics is the jewellery of human art treasure-house, and in order to decorate these ceramic muffle paintings elite in these treasures especially.But no matter be that industrial glaze (or glaze for electric porcelain) or civilian glaze have two big purposes usually, the one, outward appearance, the 2nd, improve the porcelain performance, the former is used for civilian pottery more, and the latter is used for industrial ceramics more.Industrial ceramics is mainly reflected in the porcelain performance, and for electroceramics, the porcelain performance mainly is electromechanical properties, cold and hot performance and porcelain surface insulation performance.Glaze for electric porcelain is to cover the very thin amorphous substance of porcelain billet surface one deck by certain technology, and the amorphousness total amount reaches 55～80%, and its thickness is generally at 0.1～0.25 millimeter.The surfacing of glazed porcelain base is smooth, and, Chinese People's Anti-Japanese Military and Political College gas airtight, waterproof through glazed porcelain base top layer pollutes, resistance to chemical attack, and the flushing that also helps wind and rainy day in operational process is self-cleaning.
In the existing porcelain insulator manufacturing process, to electric porcelain insulator glaze choices of raw materials, there is not unified standard, each electroceramics producer is just explored according to the electric porcelain insulator different grades, gather materials on the spot, from numerous raw clay, select suitable starting material by repetition test.The glaze starting material that the enterprise that has selects for use obviously exist more toxic mineral kind and content higher.Even glaze choices of raw materials discomfort is caused product antipollution and insulating property difference generation serious accident in many transmitting line, cause heavy economic losses for the electricity consumption zone at country and place.
A kind of loam mould starting material that provide a kind of for the deficiency that overcomes the selection of above-mentioned existing electroceramics glaze and reduce cost, be easy to seek go out used for transmission line porcelain insulator base substrate glaze by rational prepared.
Summary of the invention
To the skimble-scamble defective of electroceramics base substrate glaze raw material selection, the purpose of this invention is to provide a kind of common suspension porcelain insulator glaze raw material selection and preparation method at existing.
For achieving the above object, the present invention adopts technical scheme to be:
A kind of common suspension porcelain insulator glaze raw material selection and preparation method comprise the steps:
(1) selects kaolinite type clay (accompanying drawing 1), quartz type clay (accompanying drawing 2).Detect as can be known with X-ray diffraction (XRD): the thing phase composite of kaolinite type clay: based on kaolinite, kaolinite content 85～90%, quartz content is lower, only has 5～10%, sericite content 5～10%.Small amounts of mineral has montmorillonite, hornblende, anatase octahedrite, feldspar, gibbsite, calcite, iron mineral and amorphousness etc.; The thing phase composite of quartz type clay: host is quartzy, and quartz content accounts for more than 95%, anatase octahedrite 1～3%, and small amounts of mineral has montmorillonite, sericite, feldspar and amorphousness etc., and the granularity of raw clay is 20～40 orders.
(2) prepare talcum, purity is more than 97%; Feldspar, purity is more than 95%; Refining quartzy, purity is more than 99.9; Wollastonite, purity is more than 98%; The calcining bauxitic clay, Al
2O
3Content is more than 87%, and corundum and mullite total amount are more than 80%, and true specific gravity is greater than 3.55g/cm
3The granularity of these raw materials is at 180～200 orders.
(3) matching method: kaolinite type clay 10～15%, quartz type clay 15～25%, talcum 5～12%, feldspar 25～40%, refining quartz 10～20%, wollastonite 5～15%.The granularity of raw clay is 20～40 orders, and the granularity of other raw material is at 180～200 orders, through mix, ball milling, carry out analysis of components again.Its analysis of components data and the following expression of granularity:
Chemical ingredients is calculated (%)
| SiO 2 | Al 2O 3 | Fe 2O 3 | K 2O | Na 2O | CaO | MgO | TiO 2 | IL |
| 40～50 | 35～45 | 0.5～1.5 | 2.0～3.0 | 0.5～1.0 | 0.1～0.5 | 0.1～0.5 | 1.0～2.0 | 2.5～4.0 |
Sreen analysis
| Micron | 50～30 | 30～20 | 20～10 | 10～5 | 5～1 | <1 |
| ％ | 0.1～0.5 | 1.0～3.0 | 10～20 | 15～25 | 30～45 | 20～30 |
Compared with prior art, beneficial effect of the present invention is as follows:
Raw materials of ordinary porcelain suspension insulator glaze of the present invention is selected the appearance with the preparation method for use, has solved unification, raw material possessionization and the preparation method substantially of domestic production electric porcelain insulator base substrate glaze raw material selection.Glaze slurry fluidity with these starting material and method preparation is good, degree of thickening is little, be convenient to the glazing operation, flexural strength behind the porcelain base substrate glazing sintering can improve 25～40%, thereby has improved the electromechanical properties and the insulating property of whole porcelain insulator, and the quality of porcelain insulator product has obtained guarantee.
Description of drawings:
Fig. 1 is a kaolinite type clay XRD spectra
Fig. 2 is a quartz type clay XRD spectra
Embodiment
Below for implementing concrete processing step of the present invention:
At first select kaolinite type clay 10～15%, quartz type clay 15～25%, talcum 5～12%, feldspar 25～40%, refining quartz 10～20%, wollastonite 5～15% for use.The granularity of raw clay is 20～40 orders, and the granularity of other raw material is at 180～200 orders, through mix, ball milling, carry out analysis of components again.Its analysis of components data and the following expression of granularity:
Chemical ingredients is calculated (%)
| SiO 2 | Al 2O 3 | Fe 2O 3 | K 2O | Na 2O | CaO | MgO | TiO 2 | IL |
| 40～50 | 35～45 | 0.5～1.5 | 2.0～3.0 | 0.5～1.0 | 0.1～0.5 | 0.1～0.5 | 1.0～2.0 | 2.5～4.0 |
Sreen analysis
| Micron | 50～30 | 30～20 | 20～10 | 10～5 | 5～1 | <1 |
| ％ | 0.1～0.5 | 1.0～3.0 | 10～20 | 15～25 | 30～45 | 20～30 |
Specifically be prepared the first step by following processing step: preparation of raw material, select kaolinite type clay 10～15%, quartz type clay 15～25%, talcum 5～12%, feldspar 25～40%, refining quartz 10～20%, wollastonite 5～15% for use.The granularity of raw clay is 20～40 orders, and granularity 180～200 orders of other raw material mix.Second step: ball milling, the mixing raw material that above-mentioned outfit is the good small grinder of packing into, material: ball: water=0.8～1.3: 1～2.5: 1～3 carries out ball milling, and the time is 30～70 hours.The 3rd step: the fineness screening, fineness requirement is at 250～320 mesh screen residues 0.1～1.0%.The 4th step: deironing, adopt 3～9 of the strong tramp iron separator of magneticstrength more than 8000 Gausses, three-dimensional garden shape vibratory screening apparatus is removed coarse grain and remaining slag.The 5th step: old, the slurry after the screening is entered suction pit 20-25 hour be stand-by slurry glaze finished product, use preceding stirring.The 6th step: sintering range after the base substrate glazing, sinters porcelain in 1200～1350 ℃ of scopes of temperature.
Claims (4)
1, a kind of raw materials of ordinary porcelain suspension insulator glaze is selected for use and the preparation method, kaolinite type clay, quartz type clay, talcum, feldspar, refining quartzy, wollastonite.Can prepare porcelain insulator base substrate glaze.It is characterized in that kaolinite type clay 10～15%, quartz type clay 15～25%, talcum 5～12%, feldspar 25～40%, refining quartz 10～20%, wollastonite 5～15%.The granularity of raw clay is 20～40 orders, and the granularity of other raw material is at 180～200 orders.
2, according to a kind of common electroceramics suspension insulator glaze raw material selection and preparation method under the claim 1, it is as shown in the table to it is characterized in that analysis of components data and granularity:
Chemical ingredients is calculated (%)
Sreen analysis
3, select for use and the preparation method according to a kind of raw materials of ordinary porcelain suspension insulator glaze under claim 1 and 2, it is characterized in that to make porcelain base substrate flexural strength improve 25～40% after the glaze glazing of the raw material selected for use and preparation.
4,, it is characterized in that porcelain insulator sintering temperature after the glazing is at 1200～1350 ℃ according to a kind of ordinary porcelain insulator glaze raw material selection and preparation methods under claim 1 and 2.
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| CN200910102491A CN101544509A (en) | 2009-03-26 | 2009-03-26 | Method for selecting and preparing raw materials of ordinary porcelain suspension insulator glaze |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101921137A (en) * | 2010-05-27 | 2010-12-22 | 中国科学院地球化学研究所 | Method for selecting and preparing raw materials of 550kN-grade suspension-type porcelain insulator glaze |
| CN102408224A (en) * | 2011-07-29 | 2012-04-11 | 江苏南瓷绝缘子有限公司 | High-strength material for preparing rod-shaped porcelain insulator of high-speed electrified railway contact net |
| CN108218234A (en) * | 2016-12-13 | 2018-06-29 | 大连电瓷集团输变电材料有限公司 | High tension insulator palm fibre glaze composition of raw materials that oxidizing flame is rapidly fired to and preparation method thereof |
| CN108455851A (en) * | 2018-04-08 | 2018-08-28 | 佛山市润辉合化工有限公司 | A kind of spare glaze of ceramic system and preparation method thereof |
| CN108863080A (en) * | 2018-08-10 | 2018-11-23 | 江西正强电瓷电器有限公司 | The preparation method of the porcelain insulator glaze of positive temperature coefficient |
| CN109851219A (en) * | 2019-02-28 | 2019-06-07 | 重庆鸽牌电瓷有限公司 | A kind of palm fibre glaze and preparation method thereof |
| CN112374758A (en) * | 2020-11-30 | 2021-02-19 | 江西省星海电瓷制造有限公司 | Self-cleaning glaze for porcelain insulator and preparation method thereof |
| CN112408950A (en) * | 2020-11-23 | 2021-02-26 | 宁波朗翊科技发展有限公司 | Ceramic insulating part and preparation method thereof |
| CN112521126A (en) * | 2020-12-02 | 2021-03-19 | 江苏南瓷绝缘子股份有限公司 | High-strength suspension insulator for extra-high voltage transmission line and preparation method thereof |
| CN115650770A (en) * | 2022-11-08 | 2023-01-31 | 江西省星海电瓷制造有限公司 | Formula and manufacturing method of head glaze suitable for suspension type conical product |
-
2009
- 2009-03-26 CN CN200910102491A patent/CN101544509A/en active Pending
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101921137A (en) * | 2010-05-27 | 2010-12-22 | 中国科学院地球化学研究所 | Method for selecting and preparing raw materials of 550kN-grade suspension-type porcelain insulator glaze |
| CN102408224A (en) * | 2011-07-29 | 2012-04-11 | 江苏南瓷绝缘子有限公司 | High-strength material for preparing rod-shaped porcelain insulator of high-speed electrified railway contact net |
| CN108218234A (en) * | 2016-12-13 | 2018-06-29 | 大连电瓷集团输变电材料有限公司 | High tension insulator palm fibre glaze composition of raw materials that oxidizing flame is rapidly fired to and preparation method thereof |
| CN108455851A (en) * | 2018-04-08 | 2018-08-28 | 佛山市润辉合化工有限公司 | A kind of spare glaze of ceramic system and preparation method thereof |
| CN108863080A (en) * | 2018-08-10 | 2018-11-23 | 江西正强电瓷电器有限公司 | The preparation method of the porcelain insulator glaze of positive temperature coefficient |
| CN108863080B (en) * | 2018-08-10 | 2021-04-16 | 江西正强电瓷电器有限公司 | Preparation method of porcelain insulator glaze with positive temperature coefficient |
| CN109851219A (en) * | 2019-02-28 | 2019-06-07 | 重庆鸽牌电瓷有限公司 | A kind of palm fibre glaze and preparation method thereof |
| CN112408950A (en) * | 2020-11-23 | 2021-02-26 | 宁波朗翊科技发展有限公司 | Ceramic insulating part and preparation method thereof |
| CN112374758A (en) * | 2020-11-30 | 2021-02-19 | 江西省星海电瓷制造有限公司 | Self-cleaning glaze for porcelain insulator and preparation method thereof |
| CN112521126A (en) * | 2020-12-02 | 2021-03-19 | 江苏南瓷绝缘子股份有限公司 | High-strength suspension insulator for extra-high voltage transmission line and preparation method thereof |
| CN115650770A (en) * | 2022-11-08 | 2023-01-31 | 江西省星海电瓷制造有限公司 | Formula and manufacturing method of head glaze suitable for suspension type conical product |
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Open date: 20090930 |