CN110104953A - A kind of low bulk environment-friendly type opal glass and preparation method thereof - Google Patents
A kind of low bulk environment-friendly type opal glass and preparation method thereof Download PDFInfo
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- CN110104953A CN110104953A CN201910430001.2A CN201910430001A CN110104953A CN 110104953 A CN110104953 A CN 110104953A CN 201910430001 A CN201910430001 A CN 201910430001A CN 110104953 A CN110104953 A CN 110104953A
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- 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
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- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B25/00—Annealing glass products
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- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B5/00—Melting in furnaces; Furnaces so far as specially adapted for glass manufacture
- C03B5/06—Melting in furnaces; Furnaces so far as specially adapted for glass manufacture in pot furnaces
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- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B5/00—Melting in furnaces; Furnaces so far as specially adapted for glass manufacture
- C03B5/16—Special features of the melting process; Auxiliary means specially adapted for glass-melting furnaces
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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
- C03C10/0009—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 silica as main constituent
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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
- C03C2204/00—Glasses, glazes or enamels with special properties
- C03C2204/04—Opaque glass, glaze or enamel
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Abstract
The invention discloses a kind of low bulk environment-friendly type opal glass and preparation method thereof, the component that raw material includes following mass percent: quartz sand 52%~56%, aluminium oxide 4%~5%, zirconium oxide 3.5%~4%, tungsten oxide 7%~8%, ammonium hydrogen phosphate 2%~2.5%, sodium carbonate 12.5%~14%, calcium carbonate 6%~7%, borax pentahydrate 2.5%~3%, magnesium carbonate 5%~6% is prepared.The present invention prepares low bulk environment-friendly type opal glass by fusion casting, and the opal glass heatproof acute degeneration of acquisition is not less than 200, and thermal expansion coefficient is better than 1 × 10‑7K‑1, compared with common opal glass, thermal expansion coefficient declines 1~2 order of magnitude, and the relatively easy controllable, product quality of technique has preferable stability.
Description
Technical field
The invention belongs to glass making techniques fields, and in particular to a kind of low bulk environment-friendly type opal glass and its preparation side
Method.
Background technique
Opal glass is also known as devitrified glass or glass-ceramic.The common opacifiers of traditional opal glass is fluoride, fluorine
With its milkiness, the advantages such as stable, cheap become the main opacifiers for producing emulsion opal glass to compound at one stroke.But fluoride milkiness
Environment is polluted in agent, endangers the health of operator；It is serious to refractory corrosion, it is generally molten to make the close of fluorine-containing emulsion opal glass
Furnace li` only controls one year；The volatilization of fluorine also results in material side's shakiness, wastage of material.
The volatilization of environment-friendly type opal glass its environment-friendly type in production is small, small to the harm of environment, small to the erosion of kiln,
To make the service life of kiln be extended, production cost is greatly saved in this.But environment-friendly type opal glass is in melting
Required melting temperature is high and milkiness stability is poor (heatproof acute degeneration is unstable and low).It is an object of the invention to open
The excellent opal glass of fluorin environment protection, hot property is sent out, the scientific and technological progress of industry will be pushed, brings huge economic effect to enterprise
Benefit and social benefit.
With the rapid development of material science, low bulk or Zero-expansion material are researched and developed, material can be significantly improved
Thermal shock resistance, extend the service life of material.The present invention using negative thermal expansion material as filling mutually with just thermally expand
Glass matrix progress is compound, prepares the opal glass of low thermal coefficient of expansion.Cubic phase ZrW2O8In -100~780 DEG C of wide temperature
Remain that negative heat expansion characteristics, average coefficient of expansion are -8.7 × 10 in section-6/ K, and show as isotropism.
But ZrW2O8Thermodynamically stable temperature range is narrow, only the Thermodynamically stable between 1105~1257 DEG C, lower than this temperature
Degree, will resolve into ZrO between 780~1105 DEG C2And WO3；ZrO will be formed higher than this temperature2-WO3Amorphous glass state.
Furthermore basis material is while cooling, such as uncontrolled to temperature, and the phosphate crystal grain of precipitation just may have grown into complicated and confused shape and featheriness,
Even grow up to big starlike crystallization, it is also possible to cannot achieve the target of low bulk, so low bulk environment-friendly type glass in addition to
Strict control ratio and purity on component prescription, it is important to note that the temperature range of its milkiness temperature and forming, processing and phase transformation
Match.
It is compound by mutually being carried out with the glass matrix just thermally expanded using negative thermal expansion material as filling, prepare low thermal expansion
Coefficient environment-friendly type opal glass, not only simple process, device quality are stablized, and also have very strong practicability and generalization.
Summary of the invention
Goal of the invention: for the heatproof acute degeneration for improving environment-friendly type opal glass, reducing thermal expansion coefficient, the invention solves
The technical issues of be to provide a kind of low bulk environment-friendly type opal glass.
The present invention also technical problems to be solved are to provide the preparation method of above-mentioned low bulk environment-friendly type opal glass.
Technical solution: it is compound by mutually being carried out with the glass matrix just thermally expanded using negative thermal expansion material as filling, come
Prepare low bulk environment-friendly type opal glass.
A kind of preparation method of low bulk environment-friendly type opal glass, prepares the group that raw material includes following mass percent
Point:
2, the preparation method of a kind of low bulk environment-friendly type opal glass according to claim 1, which is characterized in that every
The partial size of kind component raw material is not more than 120 microns.
3, the preparation method of low bulk environment-friendly type opal glass of any of claims 1 or 2, which is characterized in that including with
Lower step:
(1) by weight percentage: quartz sand 52%~56%, aluminium oxide 4%~5%, zirconium oxide 3.5%~4%, oxidation
Tungsten 7%~8%, ammonium hydrogen phosphate 2%~2.5%, sodium carbonate 12.5%~14%, calcium carbonate 6%~7%, borax pentahydrate 2.5%
~3%, magnesium carbonate 5%~6% carries out ingredient, after ball milling mixing, crosses 200 meshes.
(2) high temperature melting will be carried out in the mixture investment crucible in step (1), by clarification and homogenization, then carried out cold
But；
(3) it through overcooled solution, will be poured into mold, the opal glass being formed in step (2)；
(4) opal glass being formed in step (3) is sent in furnace and carries out furnace cooling, make the further crystallite of opal glass
Change, obtains the opal glass by controlled micro crystallization；
(5) opal glass for the controlled micro crystallization that step (4) obtains is made annealing treatment.
In step (2), the temperature of the high temperature melting is 1440 DEG C~1460 DEG C.
In step (2), the cooling temperature is 1105 DEG C~1257 DEG C, and preferably cooling temperature is 1150 DEG C~1220
DEG C, after samming, kept for 5~10 minutes.
In step (3), the opal glass temperature of the sizing is not higher than 750 DEG C.
In step (4), the furnace cooling, cooling velocity is 2~10 DEG C/min, and preferably cooling velocity is 3~5
DEG C/min, 50 DEG C are cooled to by 750 DEG C.
The utility model has the advantages that opal glass of the present invention has the characteristics that environmental protection, low thermal coefficient of expansion, heatproof acute degeneration, product
Quality is effectively improved.The product performance indexes as made from this production technology is able to satisfy the newest formulation of European Union
Environmentally protective standard, and the whiteness of product is not less than 78, heatproof acute degeneration is not less than 200, and thermal expansion coefficient is better than 1 × 10-7K-1, there is preferable quality stability, be expected to substitution traditional lacquer.
Specific embodiment
The present invention is made combined with specific embodiments below and being elaborated.
Embodiment 1
The low bulk environment-friendly type opal glass composition of raw materials for preparing of the present embodiment is (weight percent): quartz sand 52%,
Aluminium oxide 5%, zirconium oxide 3.5%, tungsten oxide 8%, ammonium hydrogen phosphate 2.5%, sodium carbonate 14%, calcium carbonate 7%, borax pentahydrate
3%, magnesium carbonate 5%.Wherein, the partial size of the raw material is not more than 120 microns, it is preferable that raw material particle size is 80~100 microns.
Glass raw material is sufficiently mixed, opal glass is prepared by fusion casting.
A kind of preparation method of above-mentioned low bulk environment-friendly type opal glass, further comprising the steps of:
(1) by weight percentage: quartz sand 52%, aluminium oxide 5%, zirconium oxide 3.5%, tungsten oxide 8%, ammonium hydrogen phosphate
2.5%, sodium carbonate 14%, calcium carbonate 7%, borax pentahydrate 3%, magnesium carbonate 5%.All raw materials are weighed by above-mentioned weight percent
Afterwards, uniformly mixing crosses 200 meshes after ball mill ball milling 15 minutes.
(2) high temperature melting will be carried out in the ingredient investment crucible in step (1), by clarification and homogenization, then is cooled down；
(3) through overcooled solution, the sample that required shape is obtained in molding die will be poured into step (2)；
(4) opal glass stereotyped in step (3) is sent in furnace and is heat-treated, make it on the basis of opal glass
Upper further controlled micro crystallization, obtains the opal glass by controlled micro crystallization；
(5) opal glass that step (4) obtains is made annealing treatment.
In step (2), fusion temperature is 1440 DEG C~1460 DEG C, and cooling temperature is 1200 DEG C~1250 DEG C.
In step (4), the condition of controlled micro crystallization is 750 DEG C~50 DEG C, furnace cooling, can also realize that temperature control is cooling, cooling speed
Degree control (preferably, cooling velocity control is in 3~5 DEG C/min) within the scope of 2~10 DEG C/min.
In step (5), annealing temperature is 500 DEG C~550 DEG C, and (preferably, 520 DEG C~540 DEG C) time is 1 hour.
Thermal expansion coefficient of the opal glass that the present invention obtains between 0 DEG C~150 DEG C is 8.1 × 10-8K-1, and do not add
ZrO2And WO3Opal glass compare, thermal expansion coefficient decline 1~2 order of magnitude (6.3~6.5 × 10-6K-1), and milky white glass
The comprehensive performance of glass is preferable.
Embodiment 2
The low bulk environment-friendly type opal glass composition of raw materials for preparing of the present embodiment is (weight percent): quartz sand 53%,
Aluminium oxide 4.5%, zirconium oxide 4%, tungsten oxide 8%, ammonium hydrogen phosphate 2%, sodium carbonate 13.5%, calcium carbonate 6.5%, borax pentahydrate
3%, magnesium carbonate 5.5%.Wherein, the partial size of the raw material is not more than 120 microns, it is preferable that raw material particle size is 80~100 micro-
Rice.Glass raw material is sufficiently mixed, opal glass is prepared by fusion casting.
A kind of preparation method of above-mentioned low bulk environment-friendly type opal glass, further comprising the steps of:
(1) by weight percentage: quartz sand 53%, aluminium oxide 4.5%, zirconium oxide 4%, tungsten oxide 8%, ammonium hydrogen phosphate
2%, sodium carbonate 13.5%, calcium carbonate 6.5%, borax pentahydrate 3%, magnesium carbonate 5.5%.All raw materials press above-mentioned weight percent
It after weighing, uniformly mixes, after ball mill ball milling 15 minutes, crosses 200 meshes.
(2) high temperature melting will be carried out in the ingredient investment crucible in step (1), by clarification and homogenization, then is cooled down；
(3) through overcooled solution, the sample that required shape is obtained in molding die will be poured into step (2)；
(4) opal glass stereotyped in step (3) is sent in furnace and is heat-treated, make it on the basis of opal glass
Upper further controlled micro crystallization, obtains the opal glass by controlled micro crystallization；
(5) opal glass that step (4) obtains is made annealing treatment.
In step (2), fusion temperature is 1440 DEG C~1460 DEG C, and cooling temperature is 1200 DEG C~1250 DEG C.
In step (4), the condition of controlled micro crystallization is 750 DEG C~50 DEG C, furnace cooling, can also realize that temperature control is cooling, cooling speed
Degree control (preferably, cooling velocity control is in 3~5 DEG C/min) within the scope of 2~10 DEG C/min.
In step (5), annealing temperature is 500 DEG C~550 DEG C, and (preferably, 520 DEG C~540 DEG C) time is 1 hour.
Thermal expansion coefficient of the opal glass that the present invention obtains between 0 DEG C~150 DEG C is 8.7 × 10-8K-1, and do not add
ZrO2And WO3Opal glass compare, thermal expansion coefficient decline 1~2 order of magnitude (6.3~6.5 × 10-6K-1), and milky white glass
The comprehensive performance of glass is preferable.
Embodiment 3
The low bulk environment-friendly type opal glass composition of raw materials for preparing of the present embodiment is (weight percent): quartz sand 54%,
Aluminium oxide 5%, zirconium oxide 3.5%, tungsten oxide 7.5%, ammonium hydrogen phosphate 2%, sodium carbonate 13%, calcium carbonate 6.5%, borax pentahydrate
2.5%, magnesium carbonate 6%.Wherein, the partial size of the raw material is not more than 120 microns, it is preferable that raw material particle size is 80~100 micro-
Rice.Glass raw material is sufficiently mixed, opal glass is prepared by fusion casting.
A kind of preparation method of above-mentioned low bulk environment-friendly type opal glass, further comprising the steps of:
(1) by weight percentage: quartz sand 54%, aluminium oxide 5%, zirconium oxide 3.5%, tungsten oxide 7.5%, ammonium hydrogen phosphate
2%, sodium carbonate 13%, calcium carbonate 6.5%, borax pentahydrate 2.5%, magnesium carbonate 6%.All raw materials are claimed by above-mentioned weight percent
It after taking, uniformly mixes, after ball mill ball milling 15 minutes, crosses 200 meshes.
(2) high temperature melting will be carried out in the ingredient investment crucible in step (1), by clarification and homogenization, then is cooled down；
(3) through overcooled solution, the sample that required shape is obtained in molding die will be poured into step (2)；
(4) opal glass stereotyped in step (3) is sent in furnace and is heat-treated, make it on the basis of opal glass
Upper further controlled micro crystallization, obtains the opal glass by controlled micro crystallization；
(5) opal glass that step (4) obtains is made annealing treatment.
In step (2), fusion temperature is 1440 DEG C~1460 DEG C, and cooling temperature is 1200 DEG C~1250 DEG C.
In step (4), the condition of controlled micro crystallization is 750 DEG C~50 DEG C, furnace cooling, can also realize that temperature control is cooling, cooling speed
Degree control (preferably, cooling velocity control is in 3~5 DEG C/min) within the scope of 2~10 DEG C/min.
In step (5), annealing temperature is 500 DEG C~550 DEG C, and (preferably, 520 DEG C~540 DEG C) time is 1 hour.
Thermal expansion coefficient of the opal glass that the present invention obtains between 0 DEG C~150 DEG C is 8.4 × 10-8K-1, and do not add
ZrO2And WO3Opal glass compare, thermal expansion coefficient decline 1~2 order of magnitude (6.3~6.5 × 10-6K-1), and milky white glass
The comprehensive performance of glass is preferable.
Embodiment 4
The low bulk environment-friendly type opal glass composition of raw materials for preparing of the present embodiment is (weight percent): quartz sand 55%,
Aluminium oxide 5%, zirconium oxide 3.5%, tungsten oxide 7.5%, ammonium hydrogen phosphate 2.5%, sodium carbonate 12%, calcium carbonate 6%, borax pentahydrate
3%, magnesium carbonate 5.5%.Wherein, the partial size of the raw material is not more than 120 microns, it is preferable that raw material particle size is 80~100 micro-
Rice.Glass raw material is sufficiently mixed, opal glass is prepared by fusion casting.
A kind of preparation method of above-mentioned low bulk environment-friendly type opal glass, further comprising the steps of:
(1) by weight percentage: quartz sand 55%, aluminium oxide 5%, zirconium oxide 3.5%, tungsten oxide 7.5%, ammonium hydrogen phosphate
2.5%, sodium carbonate 12%, calcium carbonate 6%, borax pentahydrate 3%, magnesium carbonate 5.5%.All raw materials are claimed by above-mentioned weight percent
It after taking, uniformly mixes, after ball mill ball milling 15 minutes, crosses 200 meshes.
(2) high temperature melting will be carried out in the ingredient investment crucible in step (1), by clarification and homogenization, then is cooled down；
(3) through overcooled solution, the sample that required shape is obtained in molding die will be poured into step (2)；
(4) opal glass stereotyped in step (3) is sent in furnace and is heat-treated, make it on the basis of opal glass
Upper further controlled micro crystallization, obtains the opal glass by controlled micro crystallization；
(5) opal glass that step (4) obtains is made annealing treatment.
In step (2), fusion temperature is 1440 DEG C~1460 DEG C, and cooling temperature is 1200 DEG C~1250 DEG C.
In step (4), the condition of controlled micro crystallization is 750 DEG C~50 DEG C, furnace cooling, can also realize that temperature control is cooling, cooling speed
Degree control (preferably, cooling velocity control is in 3~5 DEG C/min) within the scope of 2~10 DEG C/min.
In step (5), annealing temperature is 500 DEG C~550 DEG C, and (preferably, 520 DEG C~540 DEG C) time is 1 hour.
Thermal expansion coefficient of the opal glass that the present invention obtains between 0 DEG C~150 DEG C is 8.2 × 10-8K-1, and do not add
ZrO2And WO3Opal glass compare, thermal expansion coefficient decline 1~2 order of magnitude (6.3~6.5 × 10-6K-1), and milky white glass
The comprehensive performance of glass is preferable.
Embodiment 5
The low bulk environment-friendly type opal glass composition of raw materials for preparing of the present embodiment is (weight percent): quartz sand 56%,
Aluminium oxide 4%, zirconium oxide 4%, tungsten oxide 7%, ammonium hydrogen phosphate 2%, sodium carbonate 12.5%, calcium carbonate 6%, borax pentahydrate
2.5%, magnesium carbonate 6%.Wherein, the partial size of the raw material is not more than 120 microns, it is preferable that raw material particle size is 80~100 micro-
Rice.Glass raw material is sufficiently mixed, opal glass is prepared by fusion casting.
A kind of preparation method of above-mentioned low bulk environment-friendly type opal glass, further comprising the steps of:
(1) by weight percentage: quartz sand 56%, aluminium oxide 4%, zirconium oxide 4%, tungsten oxide 7%, ammonium hydrogen phosphate 2%,
Sodium carbonate 12.5%, calcium carbonate 6%, borax pentahydrate 2.5%, magnesium carbonate 6%.All raw materials are weighed by above-mentioned weight percent
Afterwards, uniformly mixing crosses 200 meshes after ball mill ball milling 15 minutes.
(2) high temperature melting will be carried out in the ingredient investment crucible in step (1), by clarification and homogenization, then is cooled down；
(3) through overcooled solution, the sample that required shape is obtained in molding die will be poured into step (2)；
(4) opal glass stereotyped in step (3) is sent in furnace and is heat-treated, make it on the basis of opal glass
Upper further controlled micro crystallization, obtains the opal glass by controlled micro crystallization；
(5) opal glass that step (4) obtains is made annealing treatment.
In step (2), fusion temperature is 1440 DEG C~1460 DEG C, and cooling temperature is 1200 DEG C~1250 DEG C.
In step (4), the condition of controlled micro crystallization is 750 DEG C~50 DEG C, furnace cooling, can also realize that temperature control is cooling, cooling speed
Degree control (preferably, cooling velocity control is in 3~5 DEG C/min) within the scope of 2~10 DEG C/min.
In step (5), annealing temperature is 500 DEG C~550 DEG C, and (preferably, 520 DEG C~540 DEG C) time is 1 hour.
Thermal expansion coefficient of the opal glass that the present invention obtains between 0 DEG C~150 DEG C is 7.9 × 10-8K-1, and do not add
ZrO2And WO3Opal glass compare, thermal expansion coefficient decline 1~2 order of magnitude (6.3~6.5 × 10-6K-1), and milky white glass
The comprehensive performance of glass is preferable.
Comparative example: the preparation method of the opal glass without WO3 and ZrO2:
Technique and step:
(1) by after all raw material precises, after ball milling mixing, 200 meshes are crossed.
(2) high temperature melting will be carried out in the ingredient investment glass melting kiln in step (1), by clarification and homogenization, then into
Row is cooled down；
(3) by through overcooled solution, by compacting and centrifugal molding process, mating mold is made required in step (2)
The product of shape；
(4) opal glass stereotyped in step (3) is sent in furnace and is heat-treated, make it on the basis of opal glass
Upper further controlled micro crystallization, obtains the opal glass by controlled micro crystallization；
(5) opal glass that step (4) obtains is made annealing treatment, being utilized recessed soil is that raw material prepares heat-resistant opal
Glass.
In step (2), fusion temperature is 1420 DEG C~1440 DEG C；Cooling temperature is 1150 DEG C~1320 DEG C.
In step (4), the condition of the condition controlled micro crystallization of controlled micro crystallization is to be cooled to 50 from 750 DEG C with 2~5 DEG C/min speed
℃。
In step (5), annealing temperature is 500 DEG C~530 DEG C, and annealing time range is 1h.
Above-mentioned technique and the thermal expansion coefficient for being formulated opal glass obtained are 6.3~6.5 × 10-6K-1。
Claims (8)
1. a kind of low bulk environment-friendly type opal glass, which is characterized in that it prepares the component that raw material includes following mass percent:
Quartz sand 52%~56%
Aluminium oxide 4%~5%
Zirconium oxide 3.5%~4%
Tungsten oxide 7%~8%
Ammonium hydrogen phosphate 2%~2.5%
Sodium carbonate 12.5%~14%
Calcium carbonate 6%~7%
Borax pentahydrate 2.5%~3%
Magnesium carbonate 5%~6%.
2. low bulk environment-friendly type opal glass according to claim 1, which is characterized in that the partial size of every kind of component raw material is not
Greater than 120 microns；Preferably, raw material particle size is 80~100 microns.
3. the preparation method of low bulk environment-friendly type opal glass according to claim 1, which is characterized in that including following step
It is rapid:
(1) by weight percentage: quartz sand 52%~56%, aluminium oxide 4%~5%, zirconium oxide 3.5%~4%, tungsten oxide 7%~8%,
Ammonium hydrogen phosphate 2%~2.5%, sodium carbonate 12.5%~14%, calcium carbonate 6%~7%, borax pentahydrate 2.5%~3%, magnesium carbonate 5%~6%
Ingredient is carried out, after ball milling mixing, crosses 200 meshes.
(2) high temperature melting will be carried out in the mixture investment crucible in step (1), by clarification and homogenization, then is cooled down；
(3) it through overcooled solution, will be poured into mold, the opal glass being formed in step (2)；
(4) opal glass being formed in step (3) is sent in furnace and carries out furnace cooling, make the further controlled micro crystallization of opal glass,
Obtain the opal glass by controlled micro crystallization；
(5) opal glass for the controlled micro crystallization that step (4) obtains is made annealing treatment.
4. the preparation method of low bulk environment-friendly type opal glass according to claim 3, which is characterized in that in step (2),
The temperature of the high temperature melting is 1440 DEG C~1460 DEG C.
5. the preparation method of low bulk environment-friendly type opal glass according to claim 3, which is characterized in that in step (2),
The cooling temperature is 1105 DEG C~1257 DEG C.
6. the preparation method of low bulk environment-friendly type opal glass according to claim 3, which is characterized in that in step (3),
The opal glass temperature of the sizing is not higher than 750 DEG C.
7. the preparation method of low bulk environment-friendly type opal glass according to claim 3, which is characterized in that in step (4),
The furnace cooling, cooling velocity are 2~10 DEG C/min, are cooled to 50 DEG C by 750 DEG C.
8. the preparation method of low bulk environment-friendly type opal glass according to claim 3, which is characterized in that in step (5),
The annealing, annealing temperature are 500 DEG C~550 DEG C, and annealing time is 1 hour.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110436786A (en) * | 2019-08-19 | 2019-11-12 | 淮阴工学院 | A method of improving phosphate-opal glass whiteness |
| CN111039565A (en) * | 2020-01-13 | 2020-04-21 | 山东晶峰玻璃科技有限公司 | Milky white defluorinated glass and preparation method thereof |
| CN112997888A (en) * | 2021-02-23 | 2021-06-22 | 淮阴工学院 | Preparation device and method of bean curd cat litter |
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