CN1246463A - Process for preparing microcrystalline glass insulator and its products - Google Patents
Process for preparing microcrystalline glass insulator and its products Download PDFInfo
- Publication number
- CN1246463A CN1246463A CN 98117459 CN98117459A CN1246463A CN 1246463 A CN1246463 A CN 1246463A CN 98117459 CN98117459 CN 98117459 CN 98117459 A CN98117459 A CN 98117459A CN 1246463 A CN1246463 A CN 1246463A
- Authority
- CN
- China
- Prior art keywords
- microcrystalline glass
- insulator
- crystalline phase
- principal crystalline
- glass insulator
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C3/00—Glass compositions
- C03C3/04—Glass compositions containing silica
- C03C3/076—Glass compositions containing silica with 40% to 90% silica, by weight
- C03C3/083—Glass compositions containing silica with 40% to 90% silica, by weight containing aluminium oxide or an iron compound
- C03C3/085—Glass compositions containing silica with 40% to 90% silica, by weight containing aluminium oxide or an iron compound containing an oxide of a divalent metal
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C3/00—Glass compositions
- C03C3/04—Glass compositions containing silica
- C03C3/076—Glass compositions containing silica with 40% to 90% silica, by weight
- C03C3/083—Glass compositions containing silica with 40% to 90% silica, by weight containing aluminium oxide or an iron compound
- C03C3/085—Glass compositions containing silica with 40% to 90% silica, by weight containing aluminium oxide or an iron compound containing an oxide of a divalent metal
- C03C3/087—Glass compositions containing silica with 40% to 90% silica, by weight containing aluminium oxide or an iron compound containing an oxide of a divalent metal containing calcium oxide, e.g. common sheet or container glass
Abstract
A glass ceramics insulator is prepared from the tailings of V-Ti magnetite, borax tailings, dolomite, feldspar and sandstone through smelting, casting, nucleating and crystallizing. Its advantages include high mechanical strength, electric insulation nature and resistance to corrosion, acid and alkali, low dielectric loss, stable dielectric constant, low cost and comprehensive utilization of slags.
Description
The invention belongs to the electroporcelain material field, or rather, is a kind of method for preparing microcrystalline glass insulator with raw slag material
Insulator is used for fixing conductor and makes mutually insulated between conductor as a kind of porcelain spare, finishes the power transmission and transformation task of overhead power transmission line circuit/electrical equipment or power distribution unit.Insulator exposes in atmosphere, and temperature difference fluctuation is big, and corrosive medium is many, and load complexity, working conditions are quite harsh, and therefore the technical qualification country that insulator is used has issued strict standard (GB772-87).Porcelain insulator is produced, and adopts aluminum silicate raw materials such as clay, becomes pottery by loaded down with trivial details processing, moulding, glazing, slow dry, lasting intermediate sintering temperature, and its main drawback has three: the firstth, and relating to and getting tonerde is raw material, wastes land resources; Next is that technology is loaded down with trivial details, and the production cycle is long, and output and scale are restricted; Three products quality stability is poor, and qualification rate is low, cost high (the Zheng Mingxin chief editor, engineering materials, press of Tsing-Hua University, in September, 1991, P248).The objective of the invention is to overcome the prior art shortcoming, the production method of the insulator that a kind of preparation technology is simple, with short production cycle, product cost is low, performance is good is provided.
Realize main technical schemes of the present invention: the industrial residue with two or more is a raw material, makes microcrystalline glass insulator by steps such as fusion, cast molding, coring, crystallization.
Concrete preparation method of the present invention may further comprise the steps:
(1) crushed raw slag material is added in tank furnace or the electric furnace, is heated to 1400-1600 ℃, clarify after making its fusion, 1300-1350 ℃ of insulation down;
(2) under 0.01-0.1MPa, be cast to moulding in the mould that is preheated to 600-800 ℃, again through 600-700 ℃ of annealing;
(3) in 680-780 ℃ of following coring 1-2 hour, again through 850-980 ℃ of crystallization 1-2 hour;
(4) demoulding, grinding, polishing promptly obtain comprising the microcrystalline glass insulator of hedenbergite, lime feldspar, diopside, trichroite.
Raw material of the present invention is selected from the vanadium titano-magnetite mine tailing, contains brown coal, lean coal, bituminous coal at interior flyash, chromium slag, contain vanadium titanium, rare earth and ordinary blast slag, contain magnet, red iron, sparring and ferrochrome two or more mixture in interior iron tailings, copper mining tailing, rutile, gold tailings, boron magnesium mine tailing, coal measures clay, rhombspar, feldspar, magnesite mine tailing, sandstone.
Described hedenbergite microcrystalline glass insulator; Its principal crystalline phase is Ca (Mg.Fe) Si
2O
6(determining the goods principal crystalline phase with electron diffraction analysis (SED) technology, as follows).
Described lime feldspar microcrystalline glass insulator, its principal crystalline phase are CaO.AL
2O
3.2SiO
2
Described diopside microcrystalline glass insulator, its principal crystalline phase are CaO.MgO.2SiO
2
Described cordierite glass-ceramic insulator, its principal crystalline phase are 2MgO.2AL
2C
3.5SiO
2
The raw material that the microcrystalline glass insulator of above-mentioned four kinds of principal crystalline phases is used and the patent application of its chemical group prejudice number of patent application 98117458.2
Major advantage of the present invention: the present invention is because the raw material selected for use all is selected from industrial residue, so raw material is easy to get, and production cost is low; The product physical strength height, the dielectric loss that make by method of the present invention are little, and specific inductivity is stable, and electrical insulating property is good, anticorrosive, acid and alkali-resistance; Because raw material is selected from industrial residue, makes full use of secondary resource, reduce environmental pollution, be a kind of very promising slag comprehensive Utilization Ways.
Further set forth characteristics of the present invention below by example.
Example 1
This example is that the preparation principal crystalline phase is Ca (Mg.Fe) Si
2O
6The concrete preparation process of hedenbergite microcrystalline glass insulator A: 39% brown coal powder coal ash, 46% v-ti magnetite mine tailing, 15% chromium slag are joined in the electric furnace after mixing through pulverizing, 1500 ℃ of fusions, after clear, 1300 ℃ of insulations down, under 0.1MPa, inject and be preheated to 700 ℃ mould, down annealing, the demoulding were through 720 ℃ of coring 1 hour at 600 ℃, and in 900 ℃ of crystallization 1.5 hours, desired product was promptly arrived in cooling back grinding, polishing again.The chemical constitution of product (heavy %): SiO
248%, (FeO+Fe
2O
3) 9%, AL
2O
311%, CaO20%, MgO6%, TiO
25%, MnO0.4%, Cr
2O
30.6%; Product performance see Table 1.
Example 2
This example is that the preparation principal crystalline phase is CaO.AL
2O
3.2SiO
2Lime feldspar microcrystalline glass insulator B.Used raw material: v-ti magnetite mine tailing 53%, copper mining tailing 47%, preparation process and condition are with example 1.The chemical constitution of product (heavy %): SiO
254%, (FeO+Fe
2O
3) 5%, AL
2O
36.5%, CaO13%, MgO7%, TiO
26.4%; Product performance see Table 1.
Example 3
This example is that the preparation principal crystalline phase is Cao.MgO.2SiO
2Diopside microcrystalline glass insulator C.Adopt raw material: magnet mine tailing 42%, chromium slag 6%, boron magnesium ore deposit mine tailing 22%, rhombspar 22%, magnesite mine tailing 10%, its operating process is with example 1.
The chemical composition of product (heavy %): SiO
254%, (FeO+Fe
2O
3) 5%, AL
2O
36.5%, CaO13%, MgO7%, TiO
26.4%; Product performance see Table 1.
Example 4
This example is that the preparation principal crystalline phase is 2MgO.2AL
2O
3.5SiO
2Cordierite glass-ceramic insulator D.The raw material that adopts: magnesite mine tailing 38%, sandstone 32%, coal measures clay 24%, rutile 6%, its operating process is with example 1.
The chemical composition of product (heavy %): SiO
253%, (FeO+Fe
2O
3) 0.8%, AL
2O
320%, CaO0.2%, MgO20%, TiO
26%; Product performance see Table 1.
Find out that by table 1 mechanical property of product A-D of the present invention and chemical property all are better than porcelain insulator.Table 1
Claims (7)
1. the preparation method of a microcrystalline glass insulator is characterized in that preparation process may further comprise the steps:
(1) will pulverize raw slag material and be added in tank furnace or the electric furnace, be heated to 1400-1600 ℃, clarify after making its fusion, 1300-1350 ℃ of insulation down;
(2) under 0.01-0.1MPa, be cast to moulding in the mould that is preheated to 600-800 ℃, again through 600-700 ℃ of annealing;
(3) at 680-780 ℃ of following coring 1-2 hour, again through 850-980 ℃ of crystallization 1-2 hour;
(4) demoulding, grinding, polishing are brown to comprising hedenbergite, lime feldspar, diopside, cordierite glass-ceramic insulator.
2. in accordance with the method for claim 1, it is characterized in that step (2) the annealing back demoulding, again through coring, crystallization, the demoulding, grinding, polishing.
3. in accordance with the method for claim 1, it is characterized in that described raw material is selected from the vanadium titano-magnetite mine tailing, contains brown coal, flyash, the chromium slag of lean coal and bituminous coal, contain vanadium titanium, rare earth and ordinary blast slag, contain magnet, two or more the mixture in the interior iron tailings of red iron, sparring and road iron, copper mining tailing, rutile, gold tailings, boron magnesium mine tailing, coal measures clay, rhombspar, feldspar, magnesite, sandstone.
4. according to claim 1 or 2 described methods, it is characterized in that the hedenbergite microcrystalline glass insulator, its principal crystalline phase is Ca (Mg.Fe) Si
2O
6
5. according to claim 1 or 2 described methods, it is characterized in that described diopside microcrystalline glass insulator, its principal crystalline phase is CaO.MgO.2SiO
2
6. according to claim 1 or 2 described methods, it is characterized in that described lime feldspar microcrystalline glass insulator, its principal crystalline phase is CaO.AL
2O
3.2SiO
2
7. according to claim 1 or 2 described methods, it is characterized in that described cordierite glass-ceramic insulator, its principal crystalline phase is 2MgO.2AL
2O
3.5SiO
2
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB981174590A CN1153747C (en) | 1998-09-02 | 1998-09-02 | Process for preparing microcrystalline glass insulator and its products |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB981174590A CN1153747C (en) | 1998-09-02 | 1998-09-02 | Process for preparing microcrystalline glass insulator and its products |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1246463A true CN1246463A (en) | 2000-03-08 |
| CN1153747C CN1153747C (en) | 2004-06-16 |
Family
ID=5225534
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB981174590A Expired - Fee Related CN1153747C (en) | 1998-09-02 | 1998-09-02 | Process for preparing microcrystalline glass insulator and its products |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1153747C (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101636363B (en) * | 2006-09-29 | 2013-04-24 | 塞拉美克斯特有限责任公司 | Process and apparatus for hot-forging synthetic ceramic |
| CN103221355A (en) * | 2010-11-17 | 2013-07-24 | 日本电气硝子株式会社 | Crystalline glass powder |
| CN106098272A (en) * | 2016-08-17 | 2016-11-09 | 宁波高智科技咨询服务有限公司 | A kind of shock resistance tcughened glass insulator and manufacture method thereof |
| CN108585512A (en) * | 2018-06-20 | 2018-09-28 | 内蒙古科技大学 | A kind of tailing MAS series vitro-ceramic insulating materials and preparation method thereof |
| WO2020023205A1 (en) * | 2018-07-23 | 2020-01-30 | Corning Incorporated | Magnesium aluminosilicate glass ceramics |
| CN112079571A (en) * | 2020-09-15 | 2020-12-15 | 江西新瑞新材料有限公司 | High-voltage porcelain insulator glaze material with anti-pollution flashover function |
| CN112898003A (en) * | 2021-03-18 | 2021-06-04 | 湖南省醴陵市华电电瓷制造有限公司 | High-strength siliceous brown glaze electric porcelain and preparation method thereof |
-
1998
- 1998-09-02 CN CNB981174590A patent/CN1153747C/en not_active Expired - Fee Related
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101636363B (en) * | 2006-09-29 | 2013-04-24 | 塞拉美克斯特有限责任公司 | Process and apparatus for hot-forging synthetic ceramic |
| CN103221355A (en) * | 2010-11-17 | 2013-07-24 | 日本电气硝子株式会社 | Crystalline glass powder |
| CN106098272A (en) * | 2016-08-17 | 2016-11-09 | 宁波高智科技咨询服务有限公司 | A kind of shock resistance tcughened glass insulator and manufacture method thereof |
| CN108585512A (en) * | 2018-06-20 | 2018-09-28 | 内蒙古科技大学 | A kind of tailing MAS series vitro-ceramic insulating materials and preparation method thereof |
| CN108585512B (en) * | 2018-06-20 | 2021-04-09 | 内蒙古科技大学 | Tailing MAS series glass ceramic insulating material and preparation method thereof |
| WO2020023205A1 (en) * | 2018-07-23 | 2020-01-30 | Corning Incorporated | Magnesium aluminosilicate glass ceramics |
| US11332405B2 (en) | 2018-07-23 | 2022-05-17 | Corning Incorporated | Magnesium aluminosilicate glass ceramics |
| CN112079571A (en) * | 2020-09-15 | 2020-12-15 | 江西新瑞新材料有限公司 | High-voltage porcelain insulator glaze material with anti-pollution flashover function |
| CN112898003A (en) * | 2021-03-18 | 2021-06-04 | 湖南省醴陵市华电电瓷制造有限公司 | High-strength siliceous brown glaze electric porcelain and preparation method thereof |
| CN112898003B (en) * | 2021-03-18 | 2021-09-21 | 湖南省醴陵市华电电瓷制造有限公司 | High-strength siliceous brown glaze electric porcelain and preparation method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1153747C (en) | 2004-06-16 |
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