CN108069593A - Green float glass and its manufacturing method - Google Patents

Green float glass and its manufacturing method Download PDF

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Publication number
CN108069593A
CN108069593A CN201610988225.1A CN201610988225A CN108069593A CN 108069593 A CN108069593 A CN 108069593A CN 201610988225 A CN201610988225 A CN 201610988225A CN 108069593 A CN108069593 A CN 108069593A
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Prior art keywords
float glass
glass
green float
green
feo
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CN201610988225.1A
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Chinese (zh)
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梁泽超
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Individual
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    • CCHEMISTRY; METALLURGY
    • C03GLASS; MINERAL OR SLAG WOOL
    • C03CCHEMICAL 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
    • C03C1/00Ingredients generally applicable to manufacture of glasses, glazes, or vitreous enamels
    • CCHEMISTRY; METALLURGY
    • C03GLASS; MINERAL OR SLAG WOOL
    • C03CCHEMICAL 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
    • C03C1/00Ingredients generally applicable to manufacture of glasses, glazes, or vitreous enamels
    • C03C1/04Opacifiers, e.g. fluorides or phosphates; Pigments
    • CCHEMISTRY; METALLURGY
    • C03GLASS; MINERAL OR SLAG WOOL
    • C03CCHEMICAL 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
    • C03C3/00Glass compositions
    • C03C3/04Glass compositions containing silica
    • C03C3/076Glass compositions containing silica with 40% to 90% silica, by weight
    • C03C3/083Glass compositions containing silica with 40% to 90% silica, by weight containing aluminium oxide or an iron compound
    • C03C3/085Glass compositions containing silica with 40% to 90% silica, by weight containing aluminium oxide or an iron compound containing an oxide of a divalent metal
    • C03C3/087Glass compositions containing silica with 40% to 90% silica, by weight containing aluminium oxide or an iron compound containing an oxide of a divalent metal containing calcium oxide, e.g. common sheet or container glass
    • CCHEMISTRY; METALLURGY
    • C03GLASS; MINERAL OR SLAG WOOL
    • C03CCHEMICAL 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
    • C03C4/00Compositions for glass with special properties
    • C03C4/02Compositions for glass with special properties for coloured glass
    • CCHEMISTRY; METALLURGY
    • C03GLASS; MINERAL OR SLAG WOOL
    • C03CCHEMICAL 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
    • C03C4/00Compositions for glass with special properties
    • C03C4/08Compositions for glass with special properties for glass selectively absorbing radiation of specified wave lengths
    • C03C4/085Compositions for glass with special properties for glass selectively absorbing radiation of specified wave lengths for ultraviolet absorbing glass

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  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Glass Compositions (AREA)

Abstract

The present invention relates to a kind of green float glass and its manufacturing method, which includes each component of following ratio:SiO2:70.0%~75.0%;Al2O3:0%~3.0%;CaO:8.0%~11.0%;MgO:2.0%~4.8%;Na2O:13.0%~16.0%;K2O:0.3%~0.8%;SO3:0.2%~0.23%;Fe2O3:0.570%~0.630%;Wherein, FeO is also contained in green float glass, FeO accounts for the 24~27% of FeO and Fe2O3 gross masses.By introducing colorant Fe2O3 powder on the basis of common white glass float glass material formula, additional colorant need not be introduced and carry out being equipped with proprietary clarifying equipment, the simple production process of the glass, technique adjustment is convenient to be easy to controlled and stablizes, production cost is lower, meanwhile the color of glass obtained and transmitance, reflectivity can be made to change, reach the requirement of market user.

Description

Green float glass and its manufacturing method
Technical field
The present invention relates to glass production field more particularly to a kind of green float glass for being mainly used for automobile industry and its Manufacturing method.
Background technology
With the hair of the continuous improvement, in recent years auto industry of the development and people's living standard of industrial production technology Exhibition is very swift and violent, and the popularity rate of automobile constantly rises, the development of auto industry also increasingly focus on automobile safe, beautiful and Environmental protection.And vehicle glass is exactly an important indicator of automobile beauty, therefore, with the expansion of market demand, superior automobile The application prospect of glass is very open.Vehicle glass is deposited in transmitance, reflectivity and color with common float glass process white glass In apparent difference, traditional float glass available on the market is difficult to meet the needs of consumer is to glass product quality, is opened New float glass, the particularly float glass as automobile industry are to increasingly become the trend in market.But traditional mode of production Green float glass is on the one hand because the content of FeO in glass product is higher, it is desirable that it is clarified under negative pressure state, while glass In most-often used saltcake cannot make fining agent, bring huge difficulty to conventional production, while high FeO contents also can be to glass Glass brings strip flaw;On the other hand, a kind of green glass absorbed to selective solar spectrum as disclosed in CN1329327, Its colorant such as TiO2.CeO2.Cr2O3.Co2O3 and iron powder for using species more in production, these colorant prices are non- Chang Anggui, it is often more important that, beyond iron power removing, the dosage of remaining colorant is all smaller or even micro, if the production work Skill is applied to large-scale float process, very high by being brought to the weighing accuracy in being produced in dispensing and the uniformity of mixture It is required that so as to complex production process, particularly dispensing production brings huge difficulty.Finally, due to the colorant assortment used It is more, can also the adjustment of formula be given to bring difficulty when the related optical data of glass fluctuate.
The content of the invention
Based on this, it is necessary to provide that a kind of production cost is relatively low, green float glass of simple production process, to solve to pass The white float glass of system is difficult to meet the problem of consumer is to glass product quality requirement.
The present invention provides a kind of green float glass, includes each component of following ratio:SiO2:70.0%~75.0%; Al2O3:0%~3.0%;CaO:8.0%~11.0%;MgO:2.0%~4.8%;Na2O:13.0%~16.0%;K2O: 0.3%~0.8%;SO3:0.2%~0.23%;Fe2O3:0.570%~0.630%;Wherein, also contain in green float glass There are FeO, FeO to account for the 24~27% of FeO and Fe2O3 gross masses.
In a preferred embodiment, the visible light transmittance of the above-mentioned green float glass under 5mm standard thicknesses is 76%~78%.
In a preferred embodiment, above-mentioned green float glass have less than 50% the total transmitance of sunlight and Uv transmittance less than 28%.
Meanwhile it there is a need to and a kind of manufacturing method of green float glass simple for process is provided.
The present invention also provides a kind of manufacturing methods of above-mentioned green float glass, include the following steps:Component is pressed first Ratio weighs each component, and obtains mixture after each component is sufficiently mixed uniformly;Then the mixture is melted successively through melting furnaces, After clarification process, annealed by molten tin bath shaping and annealing kiln, that is, green float glass is made.
In a preferred embodiment, the mean square deviation Con trolling index of above-mentioned mixture is within 0~0.15, wherein, mixing Material mean square deviation is the assembly average with a certain group of result of a certain secondary mixture samples taken and average value, general float glass Production line is calculated with the measured values of Na2CO3 contents.
In a preferred embodiment, the fusion temperature of melting furnaces is 1600 DEG C.
By introducing colorant-Fe2O3 powder, while appropriate raising on the basis of common white glass float glass material formula The ratio of Fe2O3, Na2O and CaO, the ratio of reduction SiO2 and FeO, make batch further while more preferably fusing in glass The intensity and quality of reinforcing glass, main is by the raising of Fe2O3 ratios in glass and the reduction of FeO ratios, is not required It introduces additional colorant and carries out complicated clarifying treatment, extremely simple so as to the production technology of glass, production cost is lower, It is highly suitable for the big large-scale float process enterprise of fusing amount, meanwhile, the color of glass obtained and transmitance, reflectivity can be made It changes, reaches the requirement of market user.
Above-mentioned green float glass can realize that the selection to the ultraviolet spectra in solar spectrum absorbs, and reach the filtering sun
The purpose of harmful light in light, simultaneously because its colorant introduce type and quantity on take the course of its own, make its The color of glass seems more beautiful, nature, environmental protection, can better meet the visual appearance of user, and due to only single Introducing Fe2O3 powder, make simple production process, technique adjustment is convenient, accurate, and production cost is low, and it is big to be best suited for fusing amount The manufacturing enterprise of large-scale float glass process green glass.
Specific embodiment
The formula and its manufacturing process of green float glass are further illustrated mainly in combination with specific embodiment below.
Green float glass in the present embodiment has following components formula:
SiO2:70.0%~75.0%;Al2O3:0%~3.0%;CaO:8.0%~11.0%;MgO:2.0%~4.8%; Na2O:13.0%~16.0%;K2O:0.3%~0.8%;SO3:0.2%~0.23%;Fe2O3:0.570%~ 0.630%;In addition, also containing FeO in green float glass, FeO accounts for the 24~27% of FeO and Fe2O3 gross masses.
Visible light transmittance of the green float glass of the present embodiment under 5mm standard thicknesses is 76%~78%, and With the uv transmittance less than the total transmitance of 50% sunlight and less than 28%.Since the glass can be realized to too The selection of ultraviolet spectra in solar spectrum absorbs, and has achieved the purpose that filter harmful light in sunlight, simultaneously because its It takes the course of its own in the type and quantity that colorant introduces, the color made in glass seems more beautiful, nature, environmental protection, energy Better meet the visual appearance of user.
In the manufacturing process of above-mentioned green float glass, each component is weighed by component ratio first, each component is fully mixed Close uniform mixture, it is preferred that the mean square deviation Con trolling index of mixture is within 0~0.15;Then mixture is passed through successively After melting furnaces fusing, clarification process, annealed by molten tin bath shaping and annealing kiln, that is, green float glass is made.
It is below manufacture embodiment:
First, each component is weighed by following qualitative data:
Silica sand (SiO2):1950kg, dolomite (CaMg (CO3) 2):500kg, soda ash (Na2CO3):620kg, feldspar (calcic, The aluminum silicate mineral of sodium and potassium, chemical composition:OrxAbyAnz (x+y+z=100), wherein, Or, Ab and An are represented respectively KAlSi3O8, NaAlSi3O8 and CaAl2Si2O83 kind component):120kg, lime stone (CaCO3):160kg, saltcake (Na2SO4·10H2O):25kg, carbon dust:1.2kg, iron powder:16kg;
Then, by each component by stringent control discharge order and discharge velocity, and it is sufficiently mixed uniformly, by melting furnaces 1600 DEG C of high temperature melting, after stringent clarification process system, finally by the shaping of molten tin bath and the lehr attendant of annealing kiln science Skill controls, the green float glass of form top grade.
Due to only single introducing Fe2O3 powder, making simple production process, technique adjustment is convenient, accurate, and production cost is low, It 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 stable quality and production Technology maturation, green float glass is designed
Composition of raw materials by introducing colorant-Fe2O3 powder on the basis of common white glass float glass material formula, is fitted simultaneously Amount improves the ratio of Fe2O3, Na2O and CaO in glass, the ratio for reducing SiO2 and FeO, while so that the batch is more preferably melted Further enhance the intensity and quality of glass, it is main be by the raising of Fe2O3 ratios in glass and the reduction of FeO ratios, Additional colorant need not be introduced and carry out clarifying treatment, so as to the simple production process of glass, production cost is lower, together When, the color and transmitance, reflectivity that can make glass obtained change, and reach the requirement of market user.
Embodiment described above only expresses the several embodiments of the present invention, and description is more specific and detailed, but simultaneously Cannot the limitation to the scope of the claims of the present invention therefore be interpreted as.It should be pointed out that for those of ordinary skill in the art For, without departing from the inventive concept of the premise, various modifications and improvements can be made, these belong to the guarantor of the present invention Protect scope.Therefore, the protection domain of patent of the present invention should be determined by the appended claims.

Claims (6)

1. a kind of green float glass, which is characterized in that include each component of following ratio:
SiO2:70.0%~75.0%
Al2O3:0%~3.0%
CaO:8.0%~11.0%
MgO:2.0%~4.8%
Na2O:13.0%~16.0%
K2O:0.3%~0.8%
SO3:0.2%~0.23%
Fe2O3:0.570%~0.630%;
Also contain FeO in the green float glass, the FeO accounts for the 24~27% of the FeO and Fe2O3 gross masses.
2. green float glass as described in claim 1, which is characterized in that the green float glass under 5mm standard thicknesses Visible light transmittance be 76%~78%.
3. green float glass as described in claim 1, which is characterized in that the green float glass has less than 50% The total transmitance of sunlight and the uv transmittance less than 28%.
4. a kind of manufacturing method of green float glass as described in claim 1, which is characterized in that include the following steps:It is first First weigh each component by the component ratio, and each component be sufficiently mixed uniform mixture, then by the mixture according to It is secondary to be melted, after clarification process through melting furnaces, it is annealed by molten tin bath shaping and annealing kiln, that is, the green float glass process glass is made
Glass.
5. the manufacturing method of green float glass as claimed in claim 4, which is characterized in that the mean square deviation control of the mixture Index processed is within 0.15.
6. the manufacturing method of green float glass as claimed in claim 4, which is characterized in that the fusion temperature of the melting furnaces is 1600℃。
CN201610988225.1A 2016-11-10 2016-11-10 Green float glass and its manufacturing method Pending CN108069593A (en)

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Application Number Priority Date Filing Date Title
CN201610988225.1A CN108069593A (en) 2016-11-10 2016-11-10 Green float glass and its manufacturing method

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Application Number Priority Date Filing Date Title
CN201610988225.1A CN108069593A (en) 2016-11-10 2016-11-10 Green float glass and its manufacturing method

Publications (1)

Publication Number Publication Date
CN108069593A true CN108069593A (en) 2018-05-25

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110818252A (en) * 2019-11-06 2020-02-21 信义玻璃(天津)有限公司 Anti-self-explosion glass and preparation method thereof
CN111574053A (en) * 2020-05-25 2020-08-25 福州新福兴浮法玻璃有限公司 Preparation method of sulfur-free and carbon-free colored glass
CN111662010A (en) * 2020-06-22 2020-09-15 信义玻璃(天津)有限公司 Glass and preparation method thereof

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110818252A (en) * 2019-11-06 2020-02-21 信义玻璃(天津)有限公司 Anti-self-explosion glass and preparation method thereof
CN111574053A (en) * 2020-05-25 2020-08-25 福州新福兴浮法玻璃有限公司 Preparation method of sulfur-free and carbon-free colored glass
CN111662010A (en) * 2020-06-22 2020-09-15 信义玻璃(天津)有限公司 Glass and preparation method thereof

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Application publication date: 20180525

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