CN108409143A - A kind of warping resistance devitrified glass - Google Patents
A kind of warping resistance devitrified glass Download PDFInfo
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- CN108409143A CN108409143A CN201810605259.7A CN201810605259A CN108409143A CN 108409143 A CN108409143 A CN 108409143A CN 201810605259 A CN201810605259 A CN 201810605259A CN 108409143 A CN108409143 A CN 108409143A
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- devitrified
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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
- 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
-
- 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
- C03C1/00—Ingredients generally applicable to manufacture of glasses, glazes, or vitreous enamels
- C03C1/002—Use of waste materials, e.g. slags
-
- 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
- C03C1/00—Ingredients generally applicable to manufacture of glasses, glazes, or vitreous enamels
- C03C1/004—Refining agents
Abstract
The present invention relates to technical field of glass materials, and in particular to a kind of warping resistance devitrified glass.The raw material components of devitrified glass include:Quartz, vanadium ferrotianium tailing, wollastonite, dolomite, fluorite, calcite, zinc oxide, boron oxide, magnesia, chromium oxide, rare earth oxide.Wherein, the oxide containing five kinds of rare earth elements of La, Y, Ce, Sc, Gd in rare earth oxide, the quality accounting of the oxide of five kinds of elements is respectively 22.5%, 17.8%, 26.4%, 15.8% and 17.5% in mixture.Purification and quality-improving are carried out to glass metal using clarification upgrading agent in glass manufacturing process, so that the glass of production has better crystal phase structure, the mechanical performance of devitrified glass provided by the invention is outstanding, and compression strength, shock resistance are good, and warping resistance performance protrudes.
Description
Technical field
The present invention relates to technical field of glass materials, and in particular to a kind of warping resistance devitrified glass.
Background technology
Glass is amorphous inorganic non-metallic material, usually with a variety of inorganic minerals, such as quartz sand, borax, boric acid, weighs crystalline substance
Stone, barium carbonate, lime stone, feldspar, soda ash etc. are additionally incorporated as primary raw material made of a small amount of auxiliary material.It main
Ingredient is silica and other oxides.The chemical composition of simple glass is Na2SiO3, CaSiO3, SiO2 or Na2O
CaO6SiO2 etc., main component are silicate double salt, are a kind of non-crystalline solids of random structure.It is widely used in building
Object structure, vessel fabrication, structure and ornament manufacture etc. are used for, every wind light transmission, belonging to mixture.Separately certain metals have been mixed into it
Oxide either salt and show color coloured glass and by physics or chemistry method made from tempered glass
Deng.
The hardness of simple glass is big, and thermal conductivity is good, translucency is outstanding, but the compressive resistance of glass and bend-resistance performance phase
To deficiency, glass is easily broken when being impacted, and is not only resulted in and is scattered and disappeared using function, is also easy to cause people and other objects
Damage.In order to improve the intensity of glassware, the specific technique of people's generally use carries out tempering processing to glass, so that
There is glass better mechanical performance and higher safety coefficient, this glass to be referred to as tempered glass.
Tempered glass belongs to safety glass.Tempered glass is a kind of prestressed glass in fact, usually using chemically or physically
Method, glass surface formed compression, glass bears to offset skin stress first when external force, to improve carrying energy
Power, reinforcing glass itself anti-wind pressure, cold and heat, impact etc..Tempering, which is handled, makes the bearing capacity of glass improve significantly, changes
It has been apt to frangible property, in the fractionlet of no acute angle tempered glass destroys, the injury of human body has been significantly reduced.Tempering
The resistance to thermal shocks matter of glass has 3-5 times of raising compared with simple glass, can generally bear 250 degree or more of difference variation,
To preventing thermal breakage from having obvious effects on.But the shortcomings that also having itself of tempered glass, such as:Glass after tempering cannot be again
It is cut and is processed, just glass can only be processed to the shape of needs before tempering, then carry out tempering processing;Tempering glass
Although glass intensity is stronger than simple glass, tempered glass has the possibility of self-destruction.
In order to further improve this problem, a kind of novel devitrified glass is developed, devitrified glass and we often
The glass seen seems to differ widely, it has the double grading of glass and ceramics, and the atomic arrangement inside simple glass is that do not have
It is well-regulated, one of the reason of this is also Glass breadks easily.And devitrified glass is made of as ceramics crystal, that is to say, that it
Atomic arrangement be regular.So devitrified glass is higher than the brightness of ceramics, it is stronger than glass toughness.
Conventional devitrified glass performance has larger promotion, such as application for a patent for invention number compared with simple glass and tempered glass
Crystallization method of lithium-aluminium-silicon system low-expansion glass-ceramics and application for a patent for invention number disclosed in CN200610122075.2
Lithium-aluminium-silicon system low-expansion glass-ceramics forming method etc. disclosed in CN200910036518.X, the compressive resistance of these glass
Height, impact resistance are good, it is not easy to reveal, safety is significantly improved.But the manufacturing cost of glass is relatively
Height, and the warping resistance performance of the glass prepared is relatively poor, and glass is fragile when by larger bending active force
It splits, this brings security risk to the transport and use of glass.
Invention content
For problems of the prior art, the present invention provides a kind of warping resistance devitrified glass, the machineries of the glass
Performance is very outstanding, and compression strength, shock resistance are good, and warping resistance performance is especially prominent.
In order to achieve the above object, the present invention is achieved through the following technical solutions:
A kind of warping resistance devitrified glass, according to mass fraction, the raw material components of devitrified glass include:It is 30-35 parts quartzy, vanadium
20-27 parts of ferrotianium tailing, 5-9 parts of wollastonite, 15-20 parts of dolomite, 20-24 parts of fluorite, 15-18 parts of calcite, zinc oxide 2-4
Part, 2-3 parts of boron oxide, 1-2 parts of magnesia, 0.5-1.2 parts of chromium oxide, 0.4-0.7 parts of rare earth oxide.
Preferably, according to mass fraction, the raw material components of devitrified glass include:It is 32-34 parts quartzy, vanadium ferrotianium tailing 23-
25 parts, 7-8 parts of wollastonite, 17-19 parts of dolomite, 21-23 parts of fluorite, 16-17 parts of calcite, 2.5-3.5 parts of zinc oxide, oxidation
2.4-2.7 parts of boron, 1.4-1.6 parts of magnesia, 0.8-1.1 parts of chromium oxide, 0.4-0.6 parts of rare earth oxide.
It is further preferred that according to mass fraction, the raw material components of devitrified glass include:33 parts of quartz, vanadium ferrotianium tailing
24 parts, 7.5 parts of wollastonite, 18 parts of dolomite, 22 parts of fluorite, 17 parts of calcite, 3 parts of zinc oxide, 2.6 parts of boron oxide, magnesia
1.5 parts, 0.9 part of chromium oxide, 0.5 part of rare earth oxide.
Preferably, the oxide containing five kinds of rare earth elements of La, Y, Ce, Sc, Gd in rare earth oxide, five kinds in mixture
The quality accounting of the oxide of element is respectively 22.5%, 17.8%, 26.4%, 15.8% and 17.5%.
The addition of rare earth oxide can improve the crystal phase structure of glass, promote compression strength, the impact resistance of glass
Deng every mechanical performance;The ratio of each ingredient is obtained by many experiments in the component, most beneficial for improving and balance glass
The proportioning of glass properties.
The preparation method of devitrified glass provided by the invention includes the following steps:
(1) according to mass fraction, the devitrified glass raw material in addition to rare earth oxide is mixed, is added in ball mill and grinds
400-450 targeted fine powders are worn into, powder is sent in glass melter, is fused into glass metal, after warming-up section, temperature of glass liquid
It is increased to 1250-1300 DEG C;
(2) rare earth oxide is added into glass metal in the warming-up section of glass melter and accounts for the clarification of glass metal 2-4wt%
Glass metal, is sent in settling section by upgrading agent after stirring evenly, and clarification upgrading handles 2-3h, then by the glass metal after clarification
It is sent in constant temperature zone, 40-50min is handled with 1100-1150 DEG C of thermostatic;
(3) then glass metal is put into molding die, glass fiber blank is obtained after cooling;
(4) ratio blank material is sent in glass crystallization stove, after being heat-treated, obtains required crystallized glass material, institute
Heat treatment process is stated to include the following steps:Glass temperature is increased to 520-650 DEG C with the rate of 10-15 DEG C/min first,
Stove inside holding 0.5-2h;Then it is warming up to 720-780 DEG C with 4-5 DEG C/min, second of heat preservation 3-4h;Then with 3-4 DEG C/min
It is warming up to 800-850 DEG C, third time keeps the temperature 1-2h;Then it is warming up to 900-920 DEG C with 15-20 DEG C/min, the 4th heat preservation
0.5-1h;Then it is cooled to 500-550 DEG C with 15-20 DEG C/min, the 5th heat preservation 1-2h;Then it is cooled down with 15-20 DEG C/min
It comes out of the stove to 100 DEG C or less, completes the controlled micro crystallization processing of glass;
(5) required size and shape are obtained by the cutting of controlled micro crystallization treated glass blank, polishing, polishing, library after packaging
It deposits or sells.
Wherein, the mixed type heating kiln of glass melter selection natural gas auxiliary electrical heater.
Preferably, it clarifies in upgrading agent and is aoxidized and antimony, ceria, barium sulfate, activated alumina, potassium fluoroaluminate containing three
And germanium oxide, the mass ratio of each ingredient is 4:2:5:4:5:1.
The material particle size for clarifying upgrading agent is 0.5-2.0mm.
On the one hand the effect for clarifying upgrading agent is purification glass metal, remove impurity and bubble etc., on the other hand can also change
Kind glass crystal phase structure, promotes glass quality.
Preferably, the temperature of the settling section of glass melter is 1200-1250 DEG C.
Cool down during glass is cooled and shaped is divided into two steps, and the first step is with the rate of 15-20 DEG C/min
The temperature of glass metal is cooled to 800-850 DEG C, 30-50min is kept the temperature, is then cooled down glass with the rate of 20-25 DEG C/min
To room temperature.
The present invention has following advantageous effect:
The processing that the type devitrified glass passes through special raw material composition and heat treatment process so that after the type glass controlled micro crystallization
Interior atoms state arrangement it is more orderly, the structure of glass is even closer, to improve the surface stress and compression strength of glass,
So that the impact resistance of type processing is more outstanding.
During glass preparation, in order to improve the degree of purity of glass components and the crystal phase structure of glass crystal, in glass
Rare earth oxide and clarification upgrading agent are added in glass settling section, wherein clarification upgrading agent can not only play catharsis,
Synergistic effect can be generated with rare earth element additive, promote the quality of glass metal, improve glass crystal phase structure after molding, from
And reinforcing glass performance.
The type devitrified glass has crystal grain uniform, tiny compared with common sintering glass ceramics, and consistency is high, color
Adjust soft, beautiful texture, the good characteristic of intensity and glossiness height etc., the coefficient of thermal expansion during use is small, heat resistance
It is prominent.
Specific implementation mode
The specific implementation mode of the present invention is further described with reference to embodiment, following embodiment is only used for more
Technical scheme of the present invention is clearly demonstrated, and not intended to limit the protection scope of the present invention.
Embodiment 1
A kind of warping resistance devitrified glass, according to mass fraction, the raw material components of devitrified glass include:30 parts of quartz, vanadium titanium
20 parts of iron tailings, 5 parts of wollastonite, 15 parts of dolomite, 20 parts of fluorite, 15 parts of calcite, 2 parts of zinc oxide, 2 parts of boron oxide, oxidation
1 part of magnesium, 0.5 part of chromium oxide, 0.4 part of rare earth oxide.
Oxide containing five kinds of rare earth elements of La, Y, Ce, Sc, Gd in rare earth oxide, five kinds of elements in mixture
The quality accounting of oxide is respectively 22.5%, 17.8%, 26.4%, 15.8% and 17.5%.
The preparation method of devitrified glass provided in this embodiment includes the following steps:
(1) according to mass fraction, the devitrified glass raw material in addition to rare earth oxide is mixed, is added in ball mill and grinds
400 targeted fine powders are worn into, powder is sent in glass melter, is fused into glass metal, and after warming-up section, temperature of glass liquid increases
To 1250 DEG C;
(2) rare earth oxide is added into glass metal in the warming-up section of glass melter and is carried with the clarification for accounting for glass metal 2wt%
Glass metal, is sent in settling section by matter agent after stirring evenly, and clarification upgrading handles 2h, is then sent into the glass metal after clarification
Into constant temperature zone, 40min is handled with 1100 DEG C of thermostatic;
(3) then glass metal is put into molding die, glass fiber blank is obtained after cooling;
(4) ratio blank material is sent in glass crystallization stove, after being heat-treated, obtains required crystallized glass material, institute
Heat treatment process is stated to include the following steps:Glass temperature is increased to 520 DEG C with the rate of 10 DEG C/min first, in stove inside holding
0.5h;Then 720 DEG C are warming up to 4 DEG C/min, second of heat preservation 3h;Then 800 DEG C are warming up to 3 DEG C/min, third time is protected
Warm 1h;Then 900 DEG C are warming up to 15 DEG C/min, the 4th heat preservation 0.5h;Then 500 DEG C are cooled to 15 DEG C/min, the 5th
Secondary heat preservation 1h;Then 100 DEG C or less are cooled to 15 DEG C/min to come out of the stove, complete the controlled micro crystallization processing of glass;
(5) required size and shape are obtained by the cutting of controlled micro crystallization treated glass blank, polishing, polishing, library after packaging
It deposits or sells.
Wherein, the mixed type heating kiln of glass melter selection natural gas auxiliary electrical heater.
Clarify antimony, ceria, barium sulfate, activated alumina, potassium fluoroaluminate and oxidation containing three oxidations in upgrading agent
The mass ratio of germanium, each ingredient is 4:2:5:4:5:1;The material particle size for clarifying upgrading agent is 0.5-2.0mm.
The temperature of the settling section of glass melter is 1200 DEG C.
Cool down during glass is cooled and shaped is divided into two steps, and the first step is with the rate of 15 DEG C/min by glass
The temperature of glass liquid is cooled to 800 DEG C, keeps the temperature 30min, is then cooled to room temperature glass with the rate of 20 DEG C/min.
Embodiment 2
A kind of warping resistance devitrified glass, according to mass fraction, the raw material components of devitrified glass include:35 parts of quartz, vanadium titanium
27 parts of iron tailings, 9 parts of wollastonite, 20 parts of dolomite, 24 parts of fluorite, 18 parts of calcite, 4 parts of zinc oxide, 3 parts of boron oxide, oxidation
2 parts of magnesium, 1.2 parts of chromium oxide, 0.7 part of rare earth oxide.
Oxide containing five kinds of rare earth elements of La, Y, Ce, Sc, Gd in rare earth oxide, five kinds of elements in mixture
The quality accounting of oxide is respectively 22.5%, 17.8%, 26.4%, 15.8% and 17.5%.
The preparation method of devitrified glass provided by the invention includes the following steps:
(1) according to mass fraction, the devitrified glass raw material in addition to rare earth oxide is mixed, is added in ball mill and grinds
450 targeted fine powders are worn into, powder is sent in glass melter, is fused into glass metal, and after warming-up section, temperature of glass liquid increases
To 1300 DEG C;
(2) rare earth oxide is added into glass metal in the warming-up section of glass melter and is carried with the clarification for accounting for glass metal 4wt%
Glass metal, is sent in settling section by matter agent after stirring evenly, and clarification upgrading handles 3h, is then sent into the glass metal after clarification
Into constant temperature zone, 50min is handled with 1150 DEG C of thermostatic;
(3) then glass metal is put into molding die, glass fiber blank is obtained after cooling;
(4) ratio blank material is sent in glass crystallization stove, after being heat-treated, obtains required crystallized glass material, institute
Heat treatment process is stated to include the following steps:Glass temperature is increased to 650 DEG C with the rate of 15 DEG C/min first, in stove inside holding
2h;Then 780 DEG C are warming up to 5 DEG C/min, second of heat preservation 4h;Then 850 DEG C are warming up to 4 DEG C/min, third time is kept the temperature
2h;Then 920 DEG C are warming up to 20 DEG C/min, the 4th heat preservation 1h;Then 550 DEG C are cooled to 20 DEG C/min, the 5th guarantor
Warm 2h;Then 100 DEG C or less are cooled to 20 DEG C/min to come out of the stove, complete the controlled micro crystallization processing of glass;
(5) required size and shape are obtained by the cutting of controlled micro crystallization treated glass blank, polishing, polishing, library after packaging
It deposits or sells.
Wherein, the mixed type heating kiln of glass melter selection natural gas auxiliary electrical heater.
Clarify antimony, ceria, barium sulfate, activated alumina, potassium fluoroaluminate and oxidation containing three oxidations in upgrading agent
The mass ratio of germanium, each ingredient is 4:2:5:4:5:1;The material particle size for clarifying upgrading agent is 0.5-2.0mm.
The temperature of the settling section of glass melter is 1250 DEG C.
Cool down during glass is cooled and shaped is divided into two steps, and the first step is with the rate of 20 DEG C/min by glass
The temperature of glass liquid is cooled to 850 DEG C, keeps the temperature 50min, is then cooled to room temperature glass with the rate of 25 DEG C/min.
Embodiment 3
A kind of warping resistance devitrified glass, according to mass fraction, the raw material components of devitrified glass include:33 parts of quartz, vanadium titanium
24 parts of iron tailings, 7.5 parts of wollastonite, 18 parts of dolomite, 22 parts of fluorite, 17 parts of calcite, 3 parts of zinc oxide, 2.6 parts of boron oxide,
1.5 parts of magnesia, 0.9 part of chromium oxide, 0.5 part of rare earth oxide.
Oxide containing five kinds of rare earth elements of La, Y, Ce, Sc, Gd in rare earth oxide, five kinds of elements in mixture
The quality accounting of oxide is respectively 22.5%, 17.8%, 26.4%, 15.8% and 17.5%.
The preparation method of devitrified glass provided by the invention includes the following steps:
(1) according to mass fraction, the devitrified glass raw material in addition to rare earth oxide is mixed, is added in ball mill and grinds
400 targeted fine powders are worn into, powder is sent in glass melter, is fused into glass metal, and after warming-up section, temperature of glass liquid increases
To 1280 DEG C;
(2) rare earth oxide is added into glass metal in the warming-up section of glass melter and is carried with the clarification for accounting for glass metal 3wt%
Glass metal, is sent in settling section by matter agent after stirring evenly, and clarification upgrading handles 2.5h, then send the glass metal after clarification
Enter into constant temperature zone, 45min is handled with 1130 DEG C of thermostatic;
(3) then glass metal is put into molding die, glass fiber blank is obtained after cooling;
(4) ratio blank material is sent in glass crystallization stove, after being heat-treated, obtains required crystallized glass material, institute
Heat treatment process is stated to include the following steps:Glass temperature is increased to 580 DEG C with the rate of 13 DEG C/min first, in stove inside holding
1h;Then 760 DEG C are warming up to 4 DEG C/min, second of heat preservation 3.5h;Then 840 DEG C are warming up to 3 DEG C/min, third time is protected
Warm 1.5h;Then 910 DEG C are warming up to 17 DEG C/min, the 4th heat preservation 0.7h;Then 530 DEG C are cooled to 18 DEG C/min,
Five heat preservation 1.5h;Then 100 DEG C or less are cooled to 17 DEG C/min to come out of the stove, complete the controlled micro crystallization processing of glass;
(5) required size and shape are obtained by the cutting of controlled micro crystallization treated glass blank, polishing, polishing, library after packaging
It deposits or sells.
Wherein, the mixed type heating kiln of glass melter selection natural gas auxiliary electrical heater.
Clarify antimony, ceria, barium sulfate, activated alumina, potassium fluoroaluminate and oxidation containing three oxidations in upgrading agent
The mass ratio of germanium, each ingredient is 4:2:5:4:5:1;The material particle size for clarifying upgrading agent is 0.5-2.0mm.
The temperature of the settling section of glass melter is 1230 DEG C.
Cool down during glass is cooled and shaped is divided into two steps, and the first step is with the rate of 18 DEG C/min by glass
The temperature of glass liquid is cooled to 820 DEG C, keeps the temperature 40min, is then cooled to room temperature glass with the rate of 23 DEG C/min.
Performance test
According to GB 11614-2009《Plate glass examines detailed rules and regulations》And GB15763.2-2005《Safety glass the 2nd for building
Part:Tempered glass》In test method, to the compression strength of devitrified glass in embodiment, warping resistance intensity, thermally expand and be
The performances such as number, impact strength are tested, wherein setting sodium-calcium-silicate simple glass and sodium-calcium-silicate tempered glass are made
For control group 1 and control group 2, performance comparison test is carried out, obtained test data is as follows:
Table 1:The performance test results of glass in the present embodiment
It analyzes the above test data to find, devitrified glass provided by the invention, relative to normal silicate glass and tempering
For glass, there is better mechanical performance.Wherein, compared with tempered glass, compression strength promotes 12.7% or so, warping resistance
Performance boost 37.1% or so, impact resistance promotes 62.9%, therefore the glass properties is stronger, more durable, also more
Add safety.
The foregoing is only a preferred embodiment of the present invention, is not intended to restrict the invention, although with reference to aforementioned reality
Applying example, invention is explained in detail, for those skilled in the art, still can be to aforementioned each implementation
Technical solution recorded in example is modified or equivalent replacement of some of the technical features.All essences in the present invention
With within principle, any modification, equivalent replacement, improvement and so on should all be included in the protection scope of the present invention god.
Claims (10)
1. a kind of warping resistance devitrified glass, it is characterised in that:According to mass fraction, the raw material components of the devitrified glass include:
It is 30-35 parts quartzy, 20-27 parts of vanadium ferrotianium tailing, 5-9 parts of wollastonite, 15-20 parts of dolomite, 20-24 parts of fluorite, calcite 15-
18 parts, 2-4 parts of zinc oxide, 2-3 parts of boron oxide, 1-2 parts of magnesia, 0.5-1.2 parts of chromium oxide, 0.4-0.7 parts of rare earth oxide.
2. a kind of warping resistance devitrified glass according to claim 1, it is characterised in that:According to mass fraction, the crystallite
The raw material components of glass include:It is 32-34 parts quartzy, 23-25 parts of vanadium ferrotianium tailing, 7-8 parts of wollastonite, 17-19 parts of dolomite, firefly
21-23 parts of stone, 16-17 parts of calcite, 2.5-3.5 parts of zinc oxide, 2.4-2.7 parts of boron oxide, 1.4-1.6 parts of magnesia, oxidation
0.8-1.1 parts of chromium, 0.4-0.6 parts of rare earth oxide.
3. a kind of warping resistance devitrified glass according to claim 2, it is characterised in that:According to mass fraction, the crystallite
The raw material components of glass include:33 parts of quartz, 24 parts of vanadium ferrotianium tailing, 7.5 parts of wollastonite, 18 parts of dolomite, 22 parts of fluorite, side
Solve 17 parts of stone, 3 parts of zinc oxide, 2.6 parts of boron oxide, 1.5 parts of magnesia, 0.9 part of chromium oxide, 0.5 part of rare earth oxide.
4. a kind of warping resistance devitrified glass according to claim 1, it is characterised in that:Contain in the rare earth oxide
The oxide of five kinds of rare earth elements of La, Y, Ce, Sc, Gd, the quality accounting of the oxide of five kinds of elements is respectively in mixture
22.5%, 17.8%, 26.4%, 15.8% and 17.5%.
5. a kind of warping resistance devitrified glass according to claim 1, it is characterised in that:The preparation side of the devitrified glass
Method includes the following steps:
(1)According to mass fraction, the devitrified glass raw material in addition to rare earth oxide is mixed, is added in ball mill and is ground into
400-450 targeted fine powders, powder are sent in glass melter, are fused into glass metal, and after warming-up section, temperature of glass liquid increases
To 1250-1300 DEG C;
(2)Rare earth oxide is added into glass metal in the warming-up section of glass melter and accounts for the clarification upgrading of glass metal 2-4wt%
Glass metal is sent in settling section by agent after stirring evenly, and clarification upgrading handles 2-3h, is then sent into the glass metal after clarification
Into constant temperature zone, 40-50min is handled with 1100-1150 DEG C of thermostatic;
(3)Then glass metal is put into molding die, glass fiber blank is obtained after cooling;
(4)Ratio blank material is sent in glass crystallization stove, after being heat-treated, obtains required crystallized glass material, the heat
Processing procedure includes the following steps:Glass temperature is increased to 520-650 DEG C with the rate of 10-15 DEG C/min first, in stove
Keep the temperature 0.5-2h;Then it is warming up to 720-780 DEG C with 4-5 DEG C/min, second of heat preservation 3-4h;Then it is heated up with 3-4 DEG C/min
To 800-850 DEG C, third time keeps the temperature 1-2h;Then it is warming up to 900-920 DEG C with 15-20 DEG C/min, the 4th heat preservation 0.5-
1h;Then it is cooled to 500-550 DEG C with 15-20 DEG C/min, the 5th heat preservation 1-2h;Then it is cooled to 15-20 DEG C/min
100 DEG C or less are come out of the stove, and the controlled micro crystallization processing of glass is completed;
(5)By the cutting of controlled micro crystallization treated glass blank, polishing, polishing, obtain required size and shape, after packaging inventory or
Sale.
6. a kind of warping resistance devitrified glass according to claim 5, it is characterised in that:The glass melter selects natural gas
The mixed type heating kiln of auxiliary electrical heater.
7. a kind of warping resistance devitrified glass according to claim 5, it is characterised in that:Contain three in the clarification upgrading agent
It aoxidizes and antimony, ceria, barium sulfate, activated alumina, potassium fluoroaluminate and germanium oxide, the mass ratio of each ingredient is 4:2:5:4:
5:1。
8. a kind of warping resistance devitrified glass according to claim 5, it is characterised in that:The material grain of the clarification upgrading agent
Diameter is 0.5-2.0mm.
9. a kind of warping resistance devitrified glass according to claim 5, it is characterised in that:The settling section of the glass melter
Temperature is 1200-1250 DEG C.
10. a kind of warping resistance devitrified glass according to claim 5, it is characterised in that:The glass is cooled and shaped process
In cool down be divided into two steps, the first step is that the temperature of glass metal is cooled to 800- with the rate of 15-20 DEG C/min
850 DEG C, 30-50min is kept the temperature, is then cooled to room temperature glass with the rate of 20-25 DEG C/min.
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CN201810605259.7A CN108409143A (en) | 2018-06-13 | 2018-06-13 | A kind of warping resistance devitrified glass |
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CN104108882A (en) * | 2014-04-11 | 2014-10-22 | 海南大学 | Float microcrystalline glass and preparation method thereof |
CN104817273A (en) * | 2015-03-27 | 2015-08-05 | 内蒙古科技大学 | Microcrystalline glass with nanocrystal clusters distributed in glass phase, and preparation method thereof |
CN104926131A (en) * | 2015-06-05 | 2015-09-23 | 中国科学院过程工程研究所 | Vanadium titano-magnetite tailing glass-ceramic and preparation method thereof |
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CN1180672A (en) * | 1997-11-21 | 1998-05-06 | 清华大学 | Recipe of glass ceramics and manufacturing technology thereof |
CN101580343A (en) * | 2009-06-18 | 2009-11-18 | 中南大学 | Rare earth-mixing high strength lithium bisilicate sitall material and preparation method thereof |
CN101787786A (en) * | 2010-02-10 | 2010-07-28 | 姚桂龙 | Preparation method of non-porous nano crystalline glass ground decoration tile |
CN103224328A (en) * | 2013-05-16 | 2013-07-31 | 承德华富玻璃技术工程有限公司 | Microcrystalline glass and preparation method thereof |
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