CN108585509A - A kind of devitrified glass preparation method - Google Patents
A kind of devitrified glass preparation method Download PDFInfo
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- CN108585509A CN108585509A CN201810390343.1A CN201810390343A CN108585509A CN 108585509 A CN108585509 A CN 108585509A CN 201810390343 A CN201810390343 A CN 201810390343A CN 108585509 A CN108585509 A CN 108585509A
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Classifications
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- 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
- C03C10/00—Devitrified glass ceramics, i.e. glass ceramics having a crystalline phase dispersed in a glassy phase and constituting at least 50% by weight of the total composition
- C03C10/0063—Devitrified glass ceramics, i.e. glass ceramics having a crystalline phase dispersed in a glassy phase and constituting at least 50% by weight of the total composition containing waste materials, e.g. slags
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B19/00—Other methods of shaping glass
- C03B19/02—Other methods of shaping glass by casting molten glass, e.g. injection moulding
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B32/00—Thermal after-treatment of glass products not provided for in groups C03B19/00, C03B25/00 - C03B31/00 or C03B37/00, e.g. crystallisation, eliminating gas inclusions or other impurities; Hot-pressing vitrified, non-porous, shaped glass products
- C03B32/02—Thermal crystallisation, e.g. for crystallising glass bodies into glass-ceramic articles
Abstract
The invention discloses a kind of devitrified glass preparation methods, including:S1. raw material is configured according to the chemical composition of parent glass and obtains mixture, include the oxide that mass ratio is less than 3% in the raw material, the oxide includes PbO and As2O3;S2. the mixture obtained in step S1 is subjected to high-temperature fusion;S3. the material moulding by casting after melting is obtained into parent glass;S4. the parent glass of pouring molding is made annealing treatment to obtain coring glass;S5. further annealing is carried out to coring glass and obtains devitrified glass, cure Pb elements and As elements in raw material.It solves the process problem of toxic element Pb and As in prior art Tungsten smelting slag, avoids the crystallized glass article that intensity height, acid-fast alkali-proof are prepared for while environmental pollution.
Description
Technical field
The present invention relates to devitrified glass technical field more particularly to a kind of preparation methods of devitrified glass.
Background technology
Devitrified glass is also referred to as glass ceramics, have glass and ceramics physical chemistry feature, such as preferable mechanical property and
Thermal stability is widely used in the field of space flight and aviation, building, chemical industry.The formation of devitrified glass is then existed based on vitreum
Suitable annealing nucleation and crystallization, as long as research finds that suitable phase region, devitrified glass is selected to have preferable raw material packet
Capacitive and compatibility.
In Tungsten smelting industry, mostly uses thermokalite and leach wet processing processing tungsten ore, it is useless to produce a large amount of Tungsten smelting
Slag, still, due to wherein containing toxic elements Pb(Lead)And As(Arsenic), last year has been classified as dangerous solid waste.Having disposition at present should
The enterprise of class danger solid waste and standard are very few, if traditionally filling or storing up, the huge chalk line with polluted underground water source,
Therefore huge pressure is generated to tungsten manufacturing enterprise and society.In addition, at present to the new method of the processing of Tungsten smelting waste residue, mostly
It is recycled for wherein having the elements such as valuable tungsten, tantalum, niobium, scandium, there is no the processing for being directed to toxic element lead and arsenic.
Invention content
The object of the present invention is to provide a kind of devitrified glass preparation method, effectively solve in Tungsten smelting slag toxic element Pb and
The process problem of As.
Technical solution provided by the invention is as follows:
A kind of devitrified glass preparation method, including:
S1 configures raw material according to the chemical composition of parent glass and obtains mixture, includes that mass ratio is less than 3% in the raw material
Oxide, the oxide includes PbO(Lead oxide)And As2O3(Arsenic oxide arsenoxide);
The mixture obtained in step S1 is carried out high-temperature fusion by S2;
Material moulding by casting after melting is obtained parent glass by S3;
S4 makes annealing treatment the parent glass of pouring molding to obtain coring glass;
S5 carries out further annealing to coring glass and obtains devitrified glass, cures Pb elements and As elements in raw material.
It is further preferred that in step sl, the raw material sources of configuration in Tungsten smelting slag, cullet, stainless steel slag and
Waste ceramic;
Before step S1, including:
S0 pre-processes Tungsten smelting slag, cullet, stainless steel slag and waste ceramic, includes recycling, the drying of Partial Elements
And chemical composition analysis;
In step sl, according to the chemical composition of parent glass from pretreated Tungsten smelting slag, cullet, stainless steel slag and
Waste ceramic configuration raw material obtains mixture.
It is further preferred that including in step so), using the wolfram element in the method recycling Tungsten smelting slag of hydrometallurgic recovery.
It is further preferred that including by mass percentage in the mixture configured in step sl:40%-50%'s
SiO2(Silica), 2%-5% Al2O3(Aluminium oxide), 20%-25% CaO(Calcium oxide), 12%-20% MgO(Magnesia)、
The cosolvent Na of 5%-8%2O(Sodium oxide molybdena)And K2O(Potassium oxide), 4%-8% Composite Nucleation Agents Cr2O3(Chromium oxide)And Fe2O3(Oxygen
Change iron)And other oxides less than 3%, wherein the oxide includes PbO, Sn2O3(Tin oxide)、As2O3、Bi2O3
(Bismuth oxide)And W2O3(Tungsten oxide).
It is further preferred that in step s 2, by mixture through the pond melting of batch charger input kiln, 1420 DEG C of temperature ~
It is melted under the conditions of 1480 DEG C, then in 1380 DEG C ~ 1420 DEG C of temperature(Degree Celsius)Under the conditions of clarification and homogenization.
It is further preferred that including in step s3:
The material of high-temperature fusion is directly poured into a mould preheating in 600 ~ 650 DEG C of mold by S31;
S32 will be poured in material fast transfer to annealing kiln in a mold, be kept the temperature under conditions of temperature is 600 ~ 650 DEG C
0.5~1h(Hour), obtain parent glass.
It is further preferred that including in step s 4:Parent glass is warming up to 700 ~ 800 DEG C, 3 ~ 8 DEG C of heating rate/
Min keeps the temperature 1 ~ 3h, obtains coring glass.
It is further preferred that including in step s 5:Coring glass is warming up to 870 ~ 900 DEG C, keeps the temperature 0.5 ~ 1h, is ensured
There are Pb elements, As elements and Cr elements in raw material and vitreum to form stable crystalline phase, with but obtaining devitrified glass to room temperature.
In devitrified glass preparation method provided by the invention, with full waste material(Including Tungsten smelting slag, cullet, stainless steel slag and
Waste ceramic)Based on devitrified glass is prepared, and the toxic element Pb and As in Tungsten smelting slag are solidificated in devitrified glass lattice
In, the process problem of toxic element Pb and As in prior art Tungsten smelting slag are solved, avoids being prepared for while environmental pollution strong
Degree is high, acid-fast alkali-proof crystallized glass article, by experiment, devitrified glass compression strength prepared by the present invention 350Mpa with
On, for bending strength in 50Mpa or more, density is 2.5 ~ 2.8g/cm3(Every gram of cubic centimetre), Mohs' hardness is at 6 grades or more, suction
Water rate is less than 0.1%, soaks poison analysis and is up to state standards.
From the perspective of circular economy and resource comprehensive recycle, devitrified glass preparation method provided by the invention is not only
Rational disposition has been carried out by having virose solid waste in Tungsten smelting slag and stainless steel slag, has greatly reduced the wind of environmental pollution
Danger, and realize and turn waste into wealth and higher value application, there is significant economical and environmentally friendly benefit.
Description of the drawings
Below by a manner of clearly understandable, preferred embodiment is described with reference to the drawings, to being inverted quantitative aerosol valve
Above-mentioned characteristic, technical characteristic, advantage and its realization method be further described.
Fig. 1 is devitrified glass preparation method flow diagram of the present invention.
Specific implementation mode
The substantive content further illustrated the present invention below in conjunction with the accompanying drawings with example, but present disclosure is not limited to
This.
For the prior art technical problem more intractable to toxic element Pb and As in Tungsten smelting waste residue, the present invention provides
A kind of completely new devitrified glass preparation method, toxic element Pb and As are cured, and avoid pollution environment.Specifically, such as Fig. 1
It is shown, include in the devitrified glass preparation method:S1 configures raw material according to the chemical composition of parent glass and obtains mixture,
Include the oxide that mass ratio is less than 3% in the feed, oxide includes PbO and As2O3;S2 is mixed by what is obtained in step S1
It closes material and carries out high-temperature fusion;Material moulding by casting after melting is obtained parent glass by S3;Basic glass of the S4 to pouring molding
Glass is made annealing treatment to obtain coring glass;S5 carries out further annealing to coring glass and obtains devitrified glass, cures
Pb elements in raw material and As elements.
In step sl, the raw material sources of configuration are in Tungsten smelting slag, cullet, stainless steel slag and waste ceramic;And with
Before setting raw material, Tungsten smelting slag, cullet, stainless steel slag and waste ceramic are pre-processed, including Partial Elements recycling,
Drying and chemical composition analysis;With this, in step sl according to the chemical composition of parent glass from pretreated Tungsten smelting slag,
Cullet, stainless steel slag and waste ceramic configuration raw material obtain mixture.More specifically, it is pre-processed to Tungsten smelting slag
During, the wolfram element in the method recycling Tungsten smelting slag of hydrometallurgic recovery is used first;It it is later 100 ~ 250 DEG C in temperature
Under the conditions of drying remove moisture therein, heat source can be the waste heat that cooling zone is made annealing treatment in step S5.
In addition, including by mass percentage in the mixture configured in step sl:The SiO of 40%-50%2、2%-5%
Al2O3, 20%-25% CaO, 12%-20% MgO, 5%-8% cosolvent Na2O and K2O, the Composite Nucleation Agents Cr of 4%-8%2O3
And Fe2O3And other oxides less than 3%, wherein oxide includes PbO, Sn2O3、As2O3、Bi2O3And W2O3, totalization
Group becomes 100%.By configure it is original in further include cullet, therefore be crushed to less than 1cm during dispensing(Li
Rice)Size, mixed in proportion with other raw materials.
In step s 2, molten under the conditions of 1420 DEG C ~ 1480 DEG C of temperature by mixture through the kiln pond melting of batch charger input
Change, then clarification and homogenization under the conditions of 1380 DEG C ~ 1420 DEG C of temperature.In this process, it according to the attribute of different material, melts
Change, the total time of clarification and homogenization is 8 ~ 12h.
In step S3, the material moulding by casting after melting, which is obtained parent glass, includes:S31 is by the material of high-temperature fusion
Material directly cast preheating is in 600 ~ 650 DEG C of mold;S32 will be poured in material fast transfer to annealing kiln in a mold,
0.5 ~ 1h is kept the temperature under conditions of temperature is 600 ~ 650 DEG C, obtains parent glass.
In step S4, the parent glass of pouring molding is made annealing treatment to obtain coring glass include:By basic glass
Glass is warming up to 700 ~ 800 DEG C, 3 ~ 8 DEG C/min of heating rate, keeps the temperature 1 ~ 3h, obtains coring glass.
In step S5, further annealing is carried out to coring glass and obtains devitrified glass, cures the Pb members in raw material
Element and As elements include:Coring glass is warming up to 870 ~ 900 DEG C, keeps the temperature 0.5 ~ 1h, ensures that toxic element is formed in nucleus
Stable crystalline phase is formed to reach solidification effect with vitreum in crystallization process;Then it cools to room temperature with the furnace, obtains crystallite
Glass sample.
Embodiment 1
First by the method for hydrometallurgic recovery by Tungsten smelting slag(W content is 5%)Wolfram element recycling;Then in 100 DEG C of item
3h is dried under part and removes moisture therein, and heat source is the waste heat for making annealing treatment cooling zone.Later, by parent glass primary chemical
Composition carries out dispensing and obtains mixture, includes by mass percentage:40% SiO2, 5% Al2O3, 25% CaO, 18% MgO,
6% cosolvent(Na2O+K2O), 4% Composite Nucleation Agents(Cr2O3+Fe2O3), 2% other oxides(Mainly include PbO,
Sn2O3、As2O3、Bi2O3And W2O3), total chemical composition is 100%.Waste glass crushing to less than 1cm, mix in proportion.
Later, mixture is through the kiln pond melting of batch charger input, is melted under conditions of 1420 DEG C of temperature, then in temperature
Clarification and homogenization under conditions of 1380 DEG C are melted, the total time of clarification and homogenization is 9h.Then, by the parent glass after homogenizing
Liquid is directly poured into a mould by being preheating in 620 DEG C of mold, and in fast transfer to annealing kiln.Then, it is made annealing treatment, first
0.5h is kept the temperature under conditions of 630 DEG C, obtains parent glass;Parent glass is warming up to 700 DEG C, 3 DEG C/min of heating rate, is protected
Warm 2h obtains coring glass;Coring glass is warming up to 870 DEG C, keeps the temperature 1h so that toxic element is formed and crystallization mistake in nucleus
Stable crystalline phase is formed to reach solidification effect with vitreum in journey, is then cooled to room temperature with the furnace, is obtained devitrified glass sample.
In this example, the compression strength of the devitrified glass sample obtained is 360Mpa, bending strength 55Mpa, density
For 2.6g/cm3, 7 grades of Mohs' hardness, less than 0.1%, leaching poison analysis is up to state standards water absorption rate.
Embodiment 2
First by the method for hydrometallurgic recovery by Tungsten smelting slag(W content is 5%)Wolfram element recycling;Then in 150 DEG C of item
2h is dried under part and removes moisture therein, and heat source is the waste heat for making annealing treatment cooling zone.Later, by parent glass primary chemical group
Mixture is obtained at dispensing is carried out, includes by mass percentage:45% SiO2, 4% Al2O3, 23% CaO, 15% MgO, 5%
Cosolvent(Na2O+K2O), 6% Composite Nucleation Agents(Cr2O3+Fe2O3), 2% other oxides(Include mainly PbO, Sn2O3、
As2O3、Bi2O3And W2O3), total chemical composition is 100%.Waste glass crushing to less than 1cm, mix in proportion.
Later, mixture is through the kiln pond melting of batch charger input, is melted under conditions of 1440 DEG C of temperature, then in temperature
Clarification and homogenization under conditions of 1400 DEG C are melted, the total time of clarification and homogenization is 10h.Then, by the parent glass after homogenizing
Liquid is directly poured into a mould by being preheating in 640 DEG C of mold, and in fast transfer to annealing kiln.Then, it is made annealing treatment, first
0.6h is kept the temperature under conditions of 640 DEG C, obtains parent glass;Parent glass is warming up to 720 DEG C, 4 DEG C/min of heating rate, is protected
Warm 1h obtains coring glass;Coring glass is warming up to 880 DEG C, keeps the temperature 0.8h so that toxic element is in nucleus formation and crystallization
Stable crystalline phase is formed with vitreum in the process to reach solidification effect, room temperature is then cooled to the furnace, obtains devitrified glass sample
Product.
In this example, the compression strength of the devitrified glass sample obtained is that the compression strength of sample is 350Mpa, bending resistance
Intensity is 62Mpa, density 2.5g/cm3, 7 grades of Mohs' hardness, less than 0.1%, leaching poison analysis is up to state standards water absorption rate.
Embodiment 3
First by the method for hydrometallurgic recovery by Tungsten smelting slag(W content is 5%)Wolfram element recycling;Then in 200 DEG C of item
1h is dried under part and removes moisture therein, and heat source is the waste heat for making annealing treatment cooling zone.Later, by parent glass primary chemical
Composition carries out dispensing and obtains mixture, includes by mass percentage:50% SiO2, 3% Al2O3, 22% CaO, 13% MgO,
6.2% cosolvent(Na2O+K2O), 4% Composite Nucleation Agents(Cr2O3+Fe2O3), 1.8% other oxides(Include mainly
PbO、Sn2O3、As2O3、Bi2O3And W2O3), total chemical composition is 100%.Waste glass crushing to less than 1cm, mixing is equal in proportion
It is even.
Later, mixture is through the kiln pond melting of batch charger input, is melted under conditions of 1460 DEG C of temperature, then in temperature
Clarification and homogenization under conditions of 1380 DEG C are melted, the total time of clarification and homogenization is 8h.Then, by the parent glass after homogenizing
Liquid is directly poured into a mould by being preheating in 610 DEG C of mold, and in fast transfer to annealing kiln.Then, it is made annealing treatment, first
0.7h is kept the temperature under conditions of 620 DEG C, obtains parent glass;Parent glass is warming up to 750 DEG C, 5 DEG C/min of heating rate, is protected
Warm 3h obtains coring glass;Coring glass is warming up to 890 DEG C, keeps the temperature 0.6h so that toxic element is in nucleus formation and crystallization
Stable crystalline phase is formed with vitreum in the process to reach solidification effect, room temperature is then cooled to the furnace, obtains devitrified glass sample
Product.
In this example, the compression strength of the devitrified glass sample obtained is that the compression strength of sample is 385Mpa, bending resistance
Intensity is 78Mpa, density 2.7g/cm3, 7 grades of Mohs' hardness, less than 0.1%, leaching poison analysis is up to state standards water absorption rate.
Embodiment 4
First by the method for hydrometallurgic recovery by Tungsten smelting slag(W content is 5%)Wolfram element recycling;Then in 250 DEG C of item
3h is dried under part and removes moisture therein, and heat source is the waste heat for making annealing treatment cooling zone.Later, by parent glass primary chemical
Composition carries out dispensing and obtains mixture, includes by mass percentage:48% SiO2, 4% Al2O3, 20% CaO, 14% MgO,
8% cosolvent(Na2O+K2O), 5% Composite Nucleation Agents(Cr2O3+Fe2O3), 1% other oxides(Mainly include PbO,
Sn2O3、As2O3、Bi2O3And W2O3), total chemical composition is 100%.Waste glass crushing to less than 1cm, mix in proportion.
Later, mixture is through the kiln pond melting of batch charger input, is melted under conditions of 1480 DEG C of temperature, then in temperature
Clarification and homogenization under conditions of 1420 DEG C are melted, the total time of clarification and homogenization is 12h.Then, by the parent glass after homogenizing
Liquid is directly poured into a mould by being preheating in 650 DEG C of mold, and in fast transfer to annealing kiln.Then, it is made annealing treatment, first
0.7h is kept the temperature under conditions of 650 DEG C, obtains parent glass;Parent glass is warming up to 780 DEG C, 8 DEG C/min of heating rate, is protected
Warm 2h obtains coring glass;Coring glass is warming up to 890 DEG C, keeps the temperature 1h so that toxic element is formed and crystallization mistake in nucleus
Stable crystalline phase is formed to reach solidification effect with vitreum in journey, is then cooled to room temperature with the furnace, is obtained devitrified glass sample.
In this example, the compression strength of the devitrified glass sample obtained is that the compression strength of sample is 380Mpa, bending resistance
Intensity is 65Mpa, density 2.8g/cm3, 7 grades of Mohs' hardness, less than 0.1%, leaching poison analysis is up to state standards water absorption rate.
Embodiment 5
First by the method for hydrometallurgic recovery by Tungsten smelting slag(W content is 5%)Wolfram element recycling;Then in 250 DEG C of item
3h is dried under part and removes moisture therein, and heat source is the waste heat for making annealing treatment cooling zone.Later, by parent glass primary chemical
Composition carries out dispensing and obtains mixture, includes by mass percentage:42% SiO2, 4% Al2O3, 19% CaO, 20% MgO,
6.5% cosolvent(Na2O+K2O), 8% Composite Nucleation Agents(Cr2O3+Fe2O3), 0.5% other oxides(Include mainly
PbO、Sn2O3、As2O3、Bi2O3And W2O3), total chemical composition is 100%.Waste glass crushing to less than 1cm, mixing is equal in proportion
It is even.
Later, mixture is through the kiln pond melting of batch charger input, is melted under conditions of 1450 DEG C of temperature, then in temperature
Clarification and homogenization under conditions of 1400 DEG C are melted, the total time of clarification and homogenization is 10h.Then, by the parent glass after homogenizing
Liquid is directly poured into a mould by being preheating in 600 DEG C of mold, and in fast transfer to annealing kiln.Then, it is made annealing treatment, first
0.5h is kept the temperature under conditions of 600 DEG C, obtains parent glass;Parent glass is warming up to 800 DEG C, 6 DEG C/min of heating rate, is protected
Warm 1.5h obtains coring glass;Coring glass is warming up to 900 DEG C, keeps the temperature 0.8h so that toxic element is in nucleus formation and crystalline substance
Stable crystalline phase is formed to reach solidification effect with vitreum during change, is then cooled to room temperature with the furnace, is obtained devitrified glass
Sample.
In this example, the compression strength of the devitrified glass sample obtained is that the compression strength of sample is 356Mpa, bending resistance
Intensity is 88Mpa, density 2.65g/cm3, 7 grades of Mohs' hardness, less than 0.1%, leaching poison analysis is up to state standards water absorption rate.
It should be noted that above-described embodiment can be freely combined as needed.The above is only the preferred of the present invention
Embodiment, it is noted that for those skilled in the art, in the premise for not departing from the principle of the invention
Under, several improvements and modifications can also be made, these improvements and modifications also should be regarded as protection scope of the present invention.
Claims (8)
1. a kind of devitrified glass preparation method, which is characterized in that the devitrified glass preparation method includes:
S1 configures raw material according to the chemical composition of parent glass and obtains mixture, includes that mass ratio is less than 3% in the raw material
Oxide, the oxide includes PbO and As2O3;
The mixture obtained in step S1 is carried out high-temperature fusion by S2;
Material moulding by casting after melting is obtained parent glass by S3;
S4 makes annealing treatment the parent glass of pouring molding to obtain coring glass;
S5 carries out further annealing to coring glass and obtains devitrified glass, cures Pb elements and As elements in raw material.
2. devitrified glass preparation method as described in claim 1, which is characterized in that in step sl, the raw material sources of configuration
In Tungsten smelting slag, cullet, stainless steel slag and waste ceramic;
Before step S1, including:
S0 pre-processes Tungsten smelting slag, cullet, stainless steel slag and waste ceramic, includes recycling, the drying of Partial Elements
And chemical composition analysis;
In step sl, according to the chemical composition of parent glass from pretreated Tungsten smelting slag, cullet, stainless steel slag and
Waste ceramic configuration raw material obtains mixture.
3. devitrified glass preparation method as claimed in claim 2, which is characterized in that include being returned using wet method in step so)
Wolfram element in the method recycling Tungsten smelting slag of receipts.
4. the devitrified glass preparation method as described in claim 1-3 any one, which is characterized in that be arranged in step sl
To mixture in include by mass percentage:The SiO of 40%-50%2, 2%-5% Al2O3, 20%-25% CaO, 12%-20%
The cosolvent Na of MgO, 5%-8%2O and K2O, the Composite Nucleation Agents Cr of 4%-8%2O3And Fe2O3And other oxides less than 3%,
Wherein, the oxide includes PbO, Sn2O3、As2O3、Bi2O3And W2O3。
5. the devitrified glass preparation method as described in claim 1-3 any one, which is characterized in that in step s 2, will mix
Material is closed through the kiln pond melting of batch charger input, is melted under the conditions of 1420 DEG C ~ 1480 DEG C of temperature, then in temperature 1380 DEG C ~ 1420
Clarification and homogenization under the conditions of DEG C.
6. the devitrified glass preparation method as described in claim 1-3 any one, which is characterized in that include in step s3:
The material of high-temperature fusion is directly poured into a mould preheating in 600 ~ 650 DEG C of mold by S31;
S32 will be poured in material fast transfer to annealing kiln in a mold, be kept the temperature under conditions of temperature is 600 ~ 650 DEG C
0.5 ~ 1h obtains parent glass.
7. the devitrified glass preparation method as described in claim 1-3 any one, which is characterized in that include in step s 4:
Parent glass is warming up to 700 ~ 800 DEG C, 3 ~ 8 DEG C/min of heating rate, 1 ~ 3h is kept the temperature, obtains coring glass.
8. the devitrified glass preparation method as described in claim 1-3 any one, which is characterized in that include in step s 5:
Coring glass is warming up to 870 ~ 900 DEG C, keeps the temperature 0.5 ~ 1h, ensures Pb elements, As elements and the Cr elements and the glass that have in raw material
Glass body forms stable crystalline phase, with but obtaining devitrified glass to room temperature.
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Cited By (2)
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CN112521012A (en) * | 2020-11-11 | 2021-03-19 | 晶研一材料科技(宜兴)有限公司 | Heat-resistant high-hardness high-light-transmittance glass ceramic and preparation method thereof |
CN112794706A (en) * | 2021-02-05 | 2021-05-14 | 佛山陶者陶瓷技术有限公司 | High-strength ceramic plate and preparation method thereof |
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CN112521012A (en) * | 2020-11-11 | 2021-03-19 | 晶研一材料科技(宜兴)有限公司 | Heat-resistant high-hardness high-light-transmittance glass ceramic and preparation method thereof |
CN112521012B (en) * | 2020-11-11 | 2022-07-05 | 晶研一材料科技(宜兴)有限公司 | Heat-resistant high-hardness high-light-transmittance glass ceramic and preparation method thereof |
CN112794706A (en) * | 2021-02-05 | 2021-05-14 | 佛山陶者陶瓷技术有限公司 | High-strength ceramic plate and preparation method thereof |
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