CN115677216A - Ultraviolet cut-off type ultra-white glass raw material, mixing method and manufacturing method - Google Patents
Ultraviolet cut-off type ultra-white glass raw material, mixing method and manufacturing method Download PDFInfo
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- CN115677216A CN115677216A CN202211315746.2A CN202211315746A CN115677216A CN 115677216 A CN115677216 A CN 115677216A CN 202211315746 A CN202211315746 A CN 202211315746A CN 115677216 A CN115677216 A CN 115677216A
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- 239000011521 glass Substances 0.000 title claims abstract description 87
- 239000002994 raw material Substances 0.000 title claims abstract description 81
- 238000002156 mixing Methods 0.000 title claims description 31
- 238000000034 method Methods 0.000 title claims description 21
- 238000004519 manufacturing process Methods 0.000 title claims description 14
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 23
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 16
- AKEJUJNQAAGONA-UHFFFAOYSA-N sulfur trioxide Chemical compound O=S(=O)=O AKEJUJNQAAGONA-UHFFFAOYSA-N 0.000 claims abstract description 16
- 229910000476 molybdenum oxide Inorganic materials 0.000 claims abstract description 11
- PQQKPALAQIIWST-UHFFFAOYSA-N oxomolybdenum Chemical compound [Mo]=O PQQKPALAQIIWST-UHFFFAOYSA-N 0.000 claims abstract description 11
- BRPQOXSCLDDYGP-UHFFFAOYSA-N calcium oxide Chemical compound [O-2].[Ca+2] BRPQOXSCLDDYGP-UHFFFAOYSA-N 0.000 claims abstract description 8
- 239000000292 calcium oxide Substances 0.000 claims abstract description 8
- ODINCKMPIJJUCX-UHFFFAOYSA-N calcium oxide Inorganic materials [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 claims abstract description 8
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N iron oxide Inorganic materials [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 claims abstract description 8
- 239000000395 magnesium oxide Substances 0.000 claims abstract description 8
- CPLXHLVBOLITMK-UHFFFAOYSA-N magnesium oxide Inorganic materials [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 claims abstract description 8
- AXZKOIWUVFPNLO-UHFFFAOYSA-N magnesium;oxygen(2-) Chemical compound [O-2].[Mg+2] AXZKOIWUVFPNLO-UHFFFAOYSA-N 0.000 claims abstract description 8
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 claims abstract description 8
- CHWRSCGUEQEHOH-UHFFFAOYSA-N potassium oxide Chemical compound [O-2].[K+].[K+] CHWRSCGUEQEHOH-UHFFFAOYSA-N 0.000 claims abstract description 8
- 229910001950 potassium oxide Inorganic materials 0.000 claims abstract description 8
- 239000000377 silicon dioxide Substances 0.000 claims abstract description 8
- 235000012239 silicon dioxide Nutrition 0.000 claims abstract description 8
- KKCBUQHMOMHUOY-UHFFFAOYSA-N sodium oxide Chemical compound [O-2].[Na+].[Na+] KKCBUQHMOMHUOY-UHFFFAOYSA-N 0.000 claims abstract description 8
- 229910001948 sodium oxide Inorganic materials 0.000 claims abstract description 8
- NDLPOXTZKUMGOV-UHFFFAOYSA-N oxo(oxoferriooxy)iron hydrate Chemical compound O.O=[Fe]O[Fe]=O NDLPOXTZKUMGOV-UHFFFAOYSA-N 0.000 claims abstract 2
- 229910000420 cerium oxide Inorganic materials 0.000 claims description 15
- 238000010438 heat treatment Methods 0.000 claims description 15
- BMMGVYCKOGBVEV-UHFFFAOYSA-N oxo(oxoceriooxy)cerium Chemical compound [Ce]=O.O=[Ce]=O BMMGVYCKOGBVEV-UHFFFAOYSA-N 0.000 claims description 15
- 238000003756 stirring Methods 0.000 claims description 10
- 239000000203 mixture Substances 0.000 claims description 7
- 238000002834 transmittance Methods 0.000 description 15
- JEIPFZHSYJVQDO-UHFFFAOYSA-N ferric oxide Chemical compound O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 5
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 5
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 4
- 230000005484 gravity Effects 0.000 description 4
- 238000002844 melting Methods 0.000 description 4
- 230000008018 melting Effects 0.000 description 4
- 229910052760 oxygen Inorganic materials 0.000 description 4
- 239000001301 oxygen Substances 0.000 description 4
- 238000000137 annealing Methods 0.000 description 3
- 230000000052 comparative effect Effects 0.000 description 3
- 239000000463 material Substances 0.000 description 2
- 230000003647 oxidation Effects 0.000 description 2
- 238000007254 oxidation reaction Methods 0.000 description 2
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 238000007496 glass forming Methods 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000010309 melting process Methods 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 229910001954 samarium oxide Inorganic materials 0.000 description 1
- 229940075630 samarium oxide Drugs 0.000 description 1
- FKTOIHSPIPYAPE-UHFFFAOYSA-N samarium(iii) oxide Chemical compound [O-2].[O-2].[O-2].[Sm+3].[Sm+3] FKTOIHSPIPYAPE-UHFFFAOYSA-N 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 description 1
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- Glass Compositions (AREA)
Abstract
The application discloses ultra-white glass raw materials of ultraviolet cut-off type, including conventional raw materials and ultraviolet cut-off agent, conventional raw materials include: 72.1 to 72.9 weight parts of silicon dioxide, 0.1 to 1.0 weight part of aluminum oxide, 13.8 to 14.6 weight parts of sodium oxide, 8.7 to 10.5 weight parts of calcium oxide, 2.5 to 4.1 weight parts of magnesium oxide, 0.008 to 0.015 weight part of ferric oxide, 0.008 to 0.02 weight part of potassium oxide and 0.08 to 0.25 weight part of sulfur trioxide; the ultraviolet cut agent includes: not more than 0.15 parts by weight of molybdenum oxide. The components of the raw material of the ultraviolet cut-off type ultra-white glass are different from those of the existing raw material.
Description
Technical Field
The application relates to the field of glass manufacturing, in particular to an ultraviolet cut-off type ultra-white glass raw material, a mixing method and a manufacturing method.
Background
The ultra-white glass has a strong light transmittance of more than 91% for visible light, and is widely used in buildings and industrial production. In order to improve the ultraviolet-proof property, an ultraviolet cut-off agent is generally required to be added into raw materials in the production process so as to reduce the ultraviolet transmittance. The existing ultraviolet cut-off agent generally adopts cerium oxide, samarium oxide or titanium oxide, and no other ultraviolet cut-off agent with similar characteristics exists.
Disclosure of Invention
In view of the above-mentioned drawbacks and deficiencies of the prior art, it would be desirable to provide a raw material for ultra-white glass of the ultraviolet cut type, a mixing method and a manufacturing method having different compositions from the existing raw materials.
The specific technical scheme is as follows:
first aspect of the invention
The application provides an ultra-white glass raw materials of ultraviolet cut-off type, including conventional raw materials and ultraviolet cut-off agent, conventional raw materials includes:
72.1 to 72.9 weight portions of silicon dioxide, 0.1 to 1.0 weight portion of aluminum oxide, 13.8 to 14.6 weight portions of sodium oxide, 8.7 to 10.5 weight portions of calcium oxide, 2.5 to 4.1 weight portions of magnesium oxide, 0.008 to 0.015 weight portion of ferric oxide, 0.008 to 0.02 weight portion of potassium oxide and 0.08 to 0.25 weight portion of sulfur trioxide;
the ultraviolet cut agent includes:
not more than 0.15 parts by weight of molybdenum oxide.
Optionally, not more than 0.15 parts by weight of cerium oxide is also included.
Optionally, the ultraviolet cut-off agent comprises 0.1 part by weight of molybdenum oxide and 0.05 part by weight of cerium oxide.
Optionally, the conventional raw materials include:
72.25 parts by weight of silicon dioxide, 0.82 part by weight of aluminum oxide, 13.96 parts by weight of sodium oxide, 8.97 parts by weight of calcium oxide, 3.95 parts by weight of magnesium oxide, 0.008 part by weight of iron trioxide, 0.012 part by weight of potassium oxide, 0.18 part by weight of sulfur trioxide.
Second aspect of the invention
The application provides a method for mixing the ultraviolet cut-off type ultra-white glass raw materials, which comprises the following steps:
mixing the ultraviolet cut-off agent and the conventional raw materials according to the mass ratio of 1: mixing and stirring the X;
and (3) mixing the mixture obtained in each step and the conventional raw materials in the following steps according to the mass ratio of 1: and X is mixed and stirred, and the mixing is repeated for N times, wherein N is the set mixing times, and finally the ultraviolet cut-off type ultra-white glass raw material with the set proportion is obtained, wherein the mass ratio of the ultraviolet cut-off agent is a set value A, and the following formula is satisfied:
A＝(1+1X) N 。
third aspect
The application provides a method for manufacturing ultraviolet cut-off type ultra-white glass, which utilizes the ultraviolet cut-off type ultra-white glass raw material to carry out the following operations:
fully mixing the ultraviolet cut-off type ultra-white glass raw material and dividing into two parts;
heating one part of the ultraviolet cut-off type ultra-white glass raw material to 1450 ℃ and keeping the temperature for 0.5 hour;
adding another part of the ultraviolet cut-off type ultra-white glass raw material into the raw material, raising the temperature to 1480 ℃, keeping the temperature for 4 hours and continuously stirring;
reducing the heating temperature to 550 ℃ and keeping the temperature for 2 hours;
and reducing the heating temperature from 550 ℃ to 300 ℃ within 2 hours, and then reducing the heating temperature to room temperature to obtain the ultraviolet cut-off type ultra-white glass.
The beneficial effect of this application lies in:
in the raw materials for producing ultra-white glass, fe is generally inevitably mixed 2+ ，Fe 2+ The resulting glass will exhibit a degree of greenish color, affecting the light transmittance of the glass. Thus, after adding a certain proportion of molybdenum oxide to the conventional raw materials, fe can be added 2+ Oxidation to Fe 3+ To increase the light transmittance of the glass; on the other hand, the content of nonbridging oxygen in the glass can be increased, and the content of nonbridging oxygen is in positive correlation with the ultraviolet cut-off property of the glass, so that the ultraviolet cut-off property of the glass is better. In addition, although the overall performance of the glass produced by using the raw materials is slightly different from that of the glass produced by using cerium oxide as an ultraviolet cut-off agent in the prior art, the technical requirements on ultraviolet cut-off type ultra-white glass can be basically met.
Detailed Description
The present application will be described in further detail with reference to examples. It is to be understood that the specific embodiments described herein are merely illustrative of the relevant invention and not restrictive of the invention. It should be noted that, for convenience of description, only the portions related to the invention are shown.
It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present application will be described in detail below with reference to examples.
The preparation method comprises the following steps:
example 1 a super white glass raw material is prepared by thoroughly mixing silicon dioxide, aluminum oxide, sodium oxide, calcium oxide, magnesium oxide, ferric oxide, potassium oxide, sulfur trioxide, molybdenum oxide and cerium oxide, and the super white glass raw material is divided into two parts; heating a part of ultra-white glass raw material to 1450 ℃ and keeping the temperature for 0.5 hour to obtain a raw material A; adding another ultra-white glass raw material into the raw material A, raising the temperature to 1480 ℃, keeping the temperature for 4 hours and continuously stirring; after 4 hours, the temperature is again reduced to 550 ℃ and kept for 2 hours; after 2 hours, the heating temperature is reduced from 550 ℃ to 300 ℃, and then the heating temperature is reduced to room temperature, so that the ultraviolet cut-off type super-white glass is obtained.
The mass ratio of the conventional raw materials is the ratio of common ultra-white glass, namely: 72.1 to 72.9 weight portions of silicon dioxide, 0.1 to 1.0 weight portion of aluminum oxide, 13.8 to 14.6 weight portions of sodium oxide, 8.7 to 10.5 weight portions of calcium oxide, 2.5 to 4.1 weight portions of magnesium oxide, 0.008 to 0.015 weight portion of ferric oxide, 0.008 to 0.02 weight portion of potassium oxide and 0.08 to 0.25 weight portion of sulfur trioxide. Through repeated tests, when the specific mixture ratio is as follows: 72.25 parts by weight of silicon dioxide, 0.82 part by weight of aluminum oxide, 13.96 parts by weight of sodium oxide, 8.97 parts by weight of calcium oxide, 3.95 parts by weight of magnesium oxide, 0.008 part by weight of ferric oxide, 0.012 part by weight of potassium oxide and 0.18 part by weight of sulfur trioxide, wherein neither molybdenum oxide nor cerium oxide is added, so that the transmittance of the glass produced by the improved proportion to visible light can reach the maximum value of 90.78%, and the transmittance to ultraviolet light can also reach the minimum value of 82.65%, thereby being the optimal proportion of the conventional raw materials of the common ultra-white glass. At the moment, the glass produced according to the formula is only measured by a standard of 91 percent of visible light transmittance, the degree of ultra-white is still low, and the glass basically does not have a function of cutting off ultraviolet rays. Wherein for the measurement of the ultraviolet or visible light transmittance of the glass produced, an ultraviolet spectrophotometer known in the art is used.
The proportions of the components and the results of the performance tests are shown in Table 1.
As can be seen from comparative examples 1 to 5 of table 1, the preferred specific gravity of cerium oxide should be maintained within 0.15. The principle is as follows: the raw materials for producing ultra-white glass are generally mixed into the glass inevitablyFe 2+ ，Fe 2+ The prepared glass can be in a light green color to a certain extent, and the light transmittance of the glass is influenced. Thus, after adding a certain proportion of cerium oxide to the conventional raw materials, fe can be added 2+ Oxidation to Fe 3+ To increase the light transmittance of the glass; on the other hand, the content of non-bridge oxygen in the glass can be increased, and the content of the non-bridge oxygen and the ultraviolet ray cut-off performance of the glass are in positive correlation in a certain range, so that the ultraviolet ray cut-off performance of the glass is better. However, when the specific gravity of cerium oxide in the raw material is further increased, fe is excessively increased 2+ Will be oxidized into Fe 3+ So that the prepared glass is in a light yellow color, and the transmittance of the glass to visible light is influenced.
As can be seen from comparative example 1 and comparative examples 6 to 9 of table 1, the preferred specific gravity of molybdenum oxide should also be maintained within 0.15. Under the specific gravity, the transmittance of the produced glass to ultraviolet rays is reduced, namely, the ultraviolet cut-off property is enhanced, the transmittance of the glass to visible light is improved, and compared with the glass produced by not placing an ultraviolet cut-off agent in the raw materials, the glass can meet the requirement of the light transmittance of ultra-white glass. Therefore, although the overall performance of the glass after cerium oxide is added to the raw materials cannot be completely achieved, the technical requirements on the ultraviolet cut-off type ultra-white glass can be met by adopting the method.
As can be seen from examples 1-3 in Table 1, when the proportion of the molybdenum oxide and the proportion of the cerium oxide are controlled to be varied between 0.05 and 0.1 in the conventional raw materials in the preferred proportion in the present invention, the glass prepared by adding the molybdenum oxide and the cerium oxide in the preferred proportion in the conventional raw materials in the weight ratio of 0.1 and the weight ratio of 0.05 shows slightly higher transmittance to visible light and cut-off property to ultraviolet light than other proportions, and the overall performance is equivalent to the effect of only adding the cerium oxide in the prior art. And thus can be used as an alternative to the production of ultra-white glass of the ultraviolet cut type.
In addition, in order to ensure that the ultraviolet cut-off agent can reach the proportion in the whole raw materials, the application also provides a method for mixing the ultraviolet cut-off type ultra-white glass raw materials, which comprises the following steps:
mixing the ultraviolet cut-off agent and the conventional raw materials according to the mass ratio of 1: mixing and stirring the X;
and (3) mixing the mixture obtained in each step and the conventional raw materials in the following steps according to the mass ratio of 1: and X is mixed and stirred, and the mixing is repeated for N times, wherein N is the set mixing times, and finally the ultraviolet cut-off type ultra-white glass raw material with the set proportion is obtained, wherein the mass ratio of the ultraviolet cut-off agent is a set value A, and the following formula is satisfied:
assuming that the preset mass ratio of the ultraviolet cut-off agent in the glass raw material is A and the preset mixing frequency is N, the weight ratio of the ultraviolet cut-off agent to the conventional raw material is 1: and mixing and stirring the X to obtain a mixture, and then mixing and stirring the mixture obtained in the previous step and the conventional raw materials in each subsequent step, so that the specific value of the X can be obtained through the formula. The mixing proportion of the materials can be conveniently mastered by operators at each time, and the uniformity of the ultraviolet cut-off agent distributed in the raw materials can be improved through stirring after the materials are mixed at each time, so that the overall performance of the ultraviolet medium type ultra-white glass is ensured.
For the production of the raw materials obtained by the proportioning and mixing method, the application also provides a method for manufacturing the ultraviolet cut-off type ultra-white glass, which utilizes the raw materials of the ultraviolet cut-off type ultra-white glass to carry out the following operations:
fully mixing the ultraviolet cut-off type ultra-white glass raw material and dividing into two parts;
heating one part of the ultraviolet cut-off type ultra-white glass raw material to 1450 ℃ and keeping the temperature for 0.5 hour;
adding another part of the ultraviolet cut-off type ultra-white glass raw material into the raw material, raising the temperature to 1480 ℃, keeping the temperature for 4 hours and continuously stirring;
reducing the heating temperature to 550 ℃ and keeping the temperature for 2 hours;
and reducing the heating temperature from 550 ℃ to 300 ℃ within 2 hours, and then reducing the heating temperature to room temperature to obtain the ultraviolet cut-off type ultra-white glass.
The glass production process comprises the following steps: melting, clarifying, forming, annealing and the like. In the process of melting the raw materials, partial substances in the raw materials are decomposed or volatilized, so that the whole volume of the melted raw materials is reduced. Space remains in the apparatus for melting the raw material. Therefore, the raw materials are divided into 2 parts or more and then are added gradually in the melting process, so that the melting device can be fully utilized, and the production efficiency is improved. The melted raw materials are continuously stirred in the process of keeping at 1480 ℃ for 4 hours, so that gas decomposed from the raw materials can be discharged in an accelerated manner, and excessive bubbles are prevented from remaining in the glass to influence the ultraviolet cut-off performance and the visible light transmission performance of the glass. Then the temperature is reduced from 1480 ℃ to 550 ℃, the raw materials can be converted from liquid to solid, and the process is kept for 2 hours, so that the glass forming quality is high. Finally, two sub-processes are required in the annealing process, wherein the temperature in the first sub-process is required to be reduced from 550 ℃ to 300 ℃, the sub-process is required to be subjected to 2 hours so as to prevent the glass from being cracked due to too fast temperature reduction, and the glass is subjected to the sub-process during the annealing process, so that the glass is not easy to be cracked in the sub-process of reducing the temperature of the glass from 300 ℃ to room temperature. Thus, the yield is ensured, and the glass production efficiency is also ensured.
The above description is only a preferred embodiment of the application and is illustrative of the principles of the technology employed. It will be appreciated by a person skilled in the art that the scope of the invention as referred to in the present application is not limited to the embodiments with a specific combination of the above-mentioned features, but also covers other embodiments with any combination of the above-mentioned features or their equivalents without departing from the inventive concept. For example, the above features may be replaced with (but not limited to) features having similar functions disclosed in the present application.
Claims (6)
1. The ultraviolet cut-off type ultra-white glass raw material is characterized by comprising a conventional raw material and an ultraviolet cut-off agent, wherein the conventional raw material comprises:
72.1 to 72.9 weight parts of silicon dioxide, 0.1 to 1.0 weight part of aluminum oxide, 13.8 to 14.6 weight parts of sodium oxide, 8.7 to 10.5 weight parts of calcium oxide, 2.5 to 4.1 weight parts of magnesium oxide, 0.008 to 0.015 weight part of ferric oxide, 0.008 to 0.02 weight part of potassium oxide and 0.08 to 0.25 weight part of sulfur trioxide;
the ultraviolet cut agent includes:
not more than 0.15 parts by weight of molybdenum oxide.
2. The ultra-white glass raw material of claim 1, further comprising not more than 0.15 parts by weight of cerium oxide.
3. The ultraviolet-cut ultra-white glass raw material according to claim 2, wherein the ultraviolet-cut agent comprises 0.1 parts by weight of molybdenum oxide and 0.05 parts by weight of cerium oxide.
4. The ultra-white glass raw material of ultraviolet cut type according to any one of claims 1 to 3, characterized in that the conventional raw material comprises:
72.25 parts by weight of silicon dioxide, 0.82 parts by weight of aluminum oxide, 13.96 parts by weight of sodium oxide, 8.97 parts by weight of calcium oxide, 3.95 parts by weight of magnesium oxide, 0.008 parts by weight of iron oxide, 0.012 parts by weight of potassium oxide, 0.18 parts by weight of sulfur trioxide.
5. A method for mixing the ultra-white glass raw material of the ultraviolet cut type according to claim 4, comprising the steps of:
mixing the ultraviolet cut-off agent and the conventional raw materials in a mass ratio of 1: mixing and stirring the X;
and (3) mixing the mixture obtained in each step and the conventional raw materials in the following steps according to the mass ratio of 1: and X is mixed and stirred, and the mixing is repeated for N times, wherein N is the set mixing times, and finally the ultraviolet cut-off type ultra-white glass raw material with the set proportion is obtained, wherein the mass ratio of the ultraviolet cut-off agent is a set value A, and the following formula is satisfied:
6. a method for producing an ultraviolet cut type super white glass, characterized by comprising the steps of using the ultraviolet cut type super white glass raw material according to claim 4:
fully mixing the ultraviolet cut-off type ultra-white glass raw material and dividing into two parts;
heating one part of the ultraviolet cut-off type ultra-white glass raw material to 1450 ℃ and keeping the temperature for 0.5 hour;
adding another part of the ultraviolet cut-off type ultra-white glass raw material into the raw material, raising the temperature to 1480 ℃, keeping the temperature for 4 hours and continuously stirring;
reducing the heating temperature to 550 ℃ and keeping the temperature for 2 hours;
and reducing the heating temperature from 550 ℃ to 300 ℃ within 2 hours, and then reducing the heating temperature to room temperature to obtain the ultraviolet cut-off type ultra-white glass.
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| CN202211315746.2A CN115677216A (en) | 2022-10-26 | 2022-10-26 | Ultraviolet cut-off type ultra-white glass raw material, mixing method and manufacturing method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202211315746.2A CN115677216A (en) | 2022-10-26 | 2022-10-26 | Ultraviolet cut-off type ultra-white glass raw material, mixing method and manufacturing method |
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2022
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Application publication date: 20230203 |