CN102381839A - Green float glass and manufacturing method thereof - Google Patents
Green float glass and manufacturing method thereof Download PDFInfo
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- CN102381839A CN102381839A CN2010102743706A CN201010274370A CN102381839A CN 102381839 A CN102381839 A CN 102381839A CN 2010102743706 A CN2010102743706 A CN 2010102743706A CN 201010274370 A CN201010274370 A CN 201010274370A CN 102381839 A CN102381839 A CN 102381839A
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- float glass
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- green
- feo
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Abstract
The invention relates to green float glass and a manufacturing method thereof. The green float glass comprises the following components in proportion: 70.0-75.0% of SiO2, 0-3.0% of Al2O3, 8.0-11.0% of CaO, 2.0-4.8% of MgO, 13.0-16.0% of Na2O, 0.3-0.8% of K2O, 0.2-0.23% of SO3 and 0.570-0.630% of Fe2O3, wherein green float glass also contains FeO which accounts for 24-27% of the total mass of FeO and Fe2O3. Fe2O3 is introduced as a coloring agent on the basis of a common white float glass raw material formula, and an additional coloring agent and special clearing equipment are not needed, the glass is simple in production process, the process is convenient to adjust, easy to control and stable, and the production cost is lower. Meanwhile, the color, transmissivity and reflectivity changes of the manufactured glass meet the requirement of clients on the market.
Description
[technical field]
The present invention relates to the glass production field, relate in particular to a kind of green float glass and method of manufacture thereof that is mainly used in automobile industry.
[background technology]
Along with the development of industrial production technology and improving constantly of people's living standard, the developing of automobile industry ten minutes is swift and violent in recent years, and the popularity rate of automobile constantly rises, and developing of automobile industry is also more and more paid attention to safe, the attractive in appearance and environmental protection of automobile.And a vehicle glass automobile important indicator attractive in appearance just, therefore, the expansion of As market amount, the application prospect of high-grade vehicle glass is very open.Vehicle glass exists significantly different with common float glass process white glass on transmitance, reflectivity and color; The float glass of selling on the traditional market is difficult to satisfy the demand of human consumer to the glassy product quality; The development of new float glass, in particular as the float glass of automobile industry more and more to become the trend in market.But the green float glass of traditional mode of production is higher because of the content of FeO in the glassy product on the one hand; Requirement is clarified under negative pressure state; The saltcake that the most often uses in the glass simultaneously can not be made finings; Bring huge difficulty for conventional production, high FeO content also can bring strip flaw to glass simultaneously; On the other hand, like a kind of green glass that selective solar spectrum is absorbed that CN1329327 discloses, it uses the more tinting material of kind such as TiO2.CeO2.Cr2O3.Co2O3 and iron powder aborning; These tinting material prices are very expensive, the more important thing is, except that iron powder; The consumption of remaining tinting material is all smaller; Even trace, if this production technique is applied to large-scale float glass process production, will bring very high requirement to the weighing precision in batching is produced and the uniformity coefficient of compound; Thereby complex manufacturing, particularly batching are produced and are brought huge difficulty.At last, because the tinting material kind of using is more, bring difficulty when fluctuation takes place the relevant optical data of glass, also can for the adjustment of prescription.
[summary of the invention]
Based on this, be necessary to provide that a kind of production cost is lower, the simple green float glass of production technique, be difficult to satisfy the problem of human consumer to solve traditional white float glass to the glassy product quality requirement.
The present invention provides a kind of green float glass, comprises each component of following ratio: SiO
2: 70.0%～75.0%; Al
2O
3: 0%～3.0%; CaO:8.0%～11.0%; MgO:2.0%～4.8%; Na
2O:13.0%～16.0%; K
2O:0.3%～0.8%; SO
3: 0.2%～0.23%; Fe
2O
3: 0.570%～0.630%; Wherein, also contain FeO in the green float glass, FeO accounts for FeO and Fe
2O
324～27% of total mass.
In preferred embodiment, the visible light transmissivity of the above-mentioned green float glass under the 5mm standard thickness is 76%～78%.
In preferred embodiment, above-mentioned green float glass has and is lower than 50% the total transmitance of sunshine, and less than 28% uv transmittance.
Simultaneously, also be necessary to provide the method for manufacture of the simple green float glass of a kind of technology.
The present invention also provides a kind of method of manufacture of above-mentioned green float glass, comprise the steps: at first to take by weighing each component by component ratio, and with each component thorough mixing after evenly compound; Then with this compound successively behind melting furnaces fusings, clarification process, be shaped and annealing furnace is annealed through molten tin bath, promptly make green float glass.
In preferred embodiment, the square root of the variance controlling index of above-mentioned compound is in 0～0.15, and wherein, the compound square root of the variance is that general floatation glass production line is with Na with a certain group of result of a certain secondary compound institute sample thief and the statistical average value of MV
2CO
3The Determination on content value is calculated.
In preferred embodiment, the temperature of fusion of melting furnaces is 1600 ℃.
Through on the basis of common white glass raw material of float glass prescription, introducing tinting material-Fe
2O
3Powder, Fe in an amount of simultaneously raising glass
2O
3, Na
2The ratio of O and CaO, reduction SiO
2With the ratio of FeO, make the intensity and the quality of further reinforcing glass when admixtion is better to be melted, main is through Fe in the glass
2O
3The reduction of the raising of ratio and FeO ratio; Need not introduce extra tinting material and carry out complicated clarifying treatment, thereby glass producing process is extremely simple, production cost is lower; Be highly suitable for the big large-scale float glass process manufacturing enterprise of fusing amount; Simultaneously, color and the transmitance of the glass that makes, reflectivity are changed, reach market user's requirement.
Above-mentioned green float glass can be realized the selection of the UV spectrum in the solar spectrum is absorbed; Reached the purpose of filtering the harmful light in the sunshine; Simultaneously because its kind of introducing at tinting material and quantitatively taking the course of its own; Make its color seem more attractive in appearance, nature, environmental protection, can better satisfy user's visual appearance at glass, and because single introducing Fe only
2O
3Powder makes production technique simple, and the technology adjustment is convenient, accurate, and production cost is low, is best suited for the manufacturing enterprise of the big large-scale float glass process green glass of fusing amount.
[embodiment]
Below main prescription and the manufacturing processed thereof that combines specific embodiment to further specify green float glass.
Green float glass in the present embodiment has following component formula:
SiO
2: 70.0%～75.0%; Al
2O
3: 0%～3.0%; CaO:8.0%～11.0%; MgO:2.0%～4.8%; Na
2O:13.0%～16.0%; K
2O:0.3%～0.8%; SO
3: 0.2%～0.23%; Fe
2O
3: 0.570%～0.630%; In addition, also contain FeO in the green float glass, FeO accounts for FeO and Fe
2O
324～27% of total mass.
The visible light transmissivity of the green float glass of present embodiment under the 5mm standard thickness is 76%～78%, and has and be lower than 50% the total transmitance of sunshine, and less than 28% uv transmittance.Because this glass can be realized the selection of the UV spectrum in the solar spectrum is absorbed; Reached the purpose of filtering the harmful light in the sunshine; Simultaneously because its kind of introducing at tinting material and quantitatively taking the course of its own; Make color at glass seem more attractive in appearance, nature, environmental protection, can better satisfy user's visual appearance.
In the manufacturing processed of above-mentioned green float glass, at first take by weighing each component by component ratio, with the even compound that gets of each component thorough mixing, preferred, the square root of the variance controlling index of compound is in 0～0.15; Then with compound successively behind melting furnaces fusings, clarification process, be shaped and annealing furnace is annealed through molten tin bath, promptly make green float glass.
Below for making embodiment:
At first, take by weighing each component by following qualitative data:
Silica sand (SiO
2): 1950kg, rhombspar (CaMg (CO
3)
2): 500kg, soda ash (Na
2CO
3): 620kg, feldspar (the aluminum silicate mineral of calcic, sodium and potassium, chemical constitution: Or
xAb
yAn
z(x+y+z=100), wherein, Or, Ab and An represent KAlSi respectively
3O
8, NaAlSi
3O
8And CaAl
2Si
2O
83 kinds of components): 120kg, Wingdale (CaCO3): 160kg, saltcake (Na
2SO
410H
2O): 25kg, carbon dust: 1.2kg, iron powder: 16kg;
Then; With control discharge order and the discharge velocity of each component through strictness; And its thorough mixing is even, through the high temperature melting of 1600 ℃ of melting furnaces, after the strict clarification process system; At last through the shaping of molten tin bath and the annealing process control of annealing furnace science, the green float glass that form is high-grade.
Because single introducing Fe only
2O
3Powder makes production technique simple, and the technology adjustment is convenient, accurate, and production cost is low, is best suited for the manufacturing enterprise of the big large-scale float glass process green glass of fusing amount.
After common white glass float glass steady quality and production technology maturation, the composition of raw materials of design green float glass is through introducing tinting material-Fe on the basis of common white glass raw material of float glass prescription
2O
3Powder, Fe in an amount of simultaneously raising glass
2O
3, Na
2The ratio of O and CaO, reduction SiO
2With the ratio of FeO, make the intensity and the quality of further reinforcing glass when admixtion is better to be melted, main is through Fe in the glass
2O
3The reduction of the raising of ratio and FeO ratio need not introduce extra tinting material and carry out clarifying treatment, thereby glass producing process is simple; Production cost is lower; Simultaneously, color and the transmitance of the glass that makes, reflectivity are changed, reach market user's requirement.
The above embodiment has only expressed several kinds of embodiments of the present invention, and it describes comparatively concrete and detailed, but can not therefore be interpreted as the restriction to claim of the present invention.Should be pointed out that for the person of ordinary skill of the art under the prerequisite that does not break away from the present invention's design, can also make some distortion and improvement, these all belong to protection scope of the present invention.Therefore, the protection domain of patent of the present invention should be as the criterion with accompanying claims.
Claims (6)
1. a green float glass is characterized in that, comprises each component of following ratio:
SiO
2：70.0％～75.0％
Al
2O
3：0％～3.0％
CaO：8.0％～11.0％
MgO：2.0％～4.8％
Na
2O：13.0％～16.0％
K
2O：0.3％～0.8％
SO
3：0.2％～0.23％
Fe
2O
3：0.570％～0.630％；
Also contain FeO in the said green float glass, said FeO accounts for said FeO and Fe
2O
324～27% of total mass.
2. green float glass as claimed in claim 1 is characterized in that, the visible light transmissivity of said green float glass is 76%～78% under the 5mm standard thickness.
3. green float glass as claimed in claim 1 is characterized in that, said green float glass has and is lower than 50% the total transmitance of sunshine, and less than 28% uv transmittance.
4. the method for manufacture of a green float glass as claimed in claim 1 is characterized in that, comprises the steps:
At first take by weighing each component by said component ratio, and with each component thorough mixing even compound, then with said compound successively behind melting furnaces fusings, clarification process, be shaped and annealing furnace is annealed through molten tin bath, promptly make said green float glass.
5. the method for manufacture of green float glass as claimed in claim 4 is characterized in that, the square root of the variance controlling index of said compound is in 0.15.
6. the method for manufacture of green float glass as claimed in claim 4 is characterized in that, the temperature of fusion of said melting furnaces is 1600 ℃.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102743706A CN102381839A (en) | 2010-09-06 | 2010-09-06 | Green float glass and manufacturing method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102743706A CN102381839A (en) | 2010-09-06 | 2010-09-06 | Green float glass and manufacturing method thereof |
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| Publication Number | Publication Date |
|---|---|
| CN102381839A true CN102381839A (en) | 2012-03-21 |
Family
ID=45821737
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010102743706A Pending CN102381839A (en) | 2010-09-06 | 2010-09-06 | Green float glass and manufacturing method thereof |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102875022A (en) * | 2012-10-12 | 2013-01-16 | 湖北三峡新型建材股份有限公司 | Green float glass with low ultraviolet transmittance |
| CN103641303A (en) * | 2013-11-27 | 2014-03-19 | 常熟市赛蒂镶嵌玻璃制品有限公司 | Preparation technology of green float glass |
| CN105347657A (en) * | 2015-12-16 | 2016-02-24 | 常熟市赛蒂镶嵌玻璃制品有限公司 | Manufacturing method of float glass |
| CN115536240A (en) * | 2022-09-30 | 2022-12-30 | 秦皇岛弘华特种玻璃有限公司 | Low-expansion all-electric-melting color borosilicate float glass and preparation method and equipment thereof |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1898169A (en) * | 2003-12-26 | 2007-01-17 | 日本板硝子株式会社 | Near infrared absorbing green glass composition, and laminated glass using the same |
-
2010
- 2010-09-06 CN CN2010102743706A patent/CN102381839A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1898169A (en) * | 2003-12-26 | 2007-01-17 | 日本板硝子株式会社 | Near infrared absorbing green glass composition, and laminated glass using the same |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102875022A (en) * | 2012-10-12 | 2013-01-16 | 湖北三峡新型建材股份有限公司 | Green float glass with low ultraviolet transmittance |
| CN103641303A (en) * | 2013-11-27 | 2014-03-19 | 常熟市赛蒂镶嵌玻璃制品有限公司 | Preparation technology of green float glass |
| CN105347657A (en) * | 2015-12-16 | 2016-02-24 | 常熟市赛蒂镶嵌玻璃制品有限公司 | Manufacturing method of float glass |
| CN115536240A (en) * | 2022-09-30 | 2022-12-30 | 秦皇岛弘华特种玻璃有限公司 | Low-expansion all-electric-melting color borosilicate float glass and preparation method and equipment thereof |
| CN115536240B (en) * | 2022-09-30 | 2023-08-22 | 秦皇岛弘华特种玻璃有限公司 | Low-expansion full-electric melting color boron silicon float glass and preparation method and equipment thereof |
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Application publication date: 20120321 |