CN103102072B - High brightness glass and preparation method thereof - Google Patents
High brightness glass and preparation method thereof Download PDFInfo
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- CN103102072B CN103102072B CN201110356638.5A CN201110356638A CN103102072B CN 103102072 B CN103102072 B CN 103102072B CN 201110356638 A CN201110356638 A CN 201110356638A CN 103102072 B CN103102072 B CN 103102072B
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Abstract
The invention discloses a high brightness glass which comprises the following main raw materials: 510-630 parts by weight of quartz sand, 170-208 parts by weight of soda ash, 130-164 parts by weight of calcite, 18-23 parts by weight of aluminium hydroxide, 0.2-0.25 parts by weight of erbium oxide, and 0.0005-0.0007 parts by weight of cobalt powder. The invention further discloses a preparation method of the high brightness glass. According to the invention, the high brightness glass solves problems of discoloration caused by selenium exposure due to long-time storage of the glasses and strong sun exposure, and simultaneously improves brightness, whiteness and transparency of the glasses.
Description
Technical field
The present invention relates to glass manufacturing area, particularly relate to a kind of high brightness glass and preparation method thereof.
Background technology
Along with the fast development of China's photoelectric technology and the raising of experimental study level, market proposes higher requirement for the brightness of glass, whiteness and transmitance.Meanwhile, due to the problem of the poor stability of discoloring agent, can there is " variable color " problem in the prolongation along with the glassy product shelf-time.Nowadays, high brightness is all badly in need of in the industries such as high-grade glass furniture, ornamental glass, imitative crystal product, fitting glass, top-grade building and field, the glass of high whiteness and high-clarity, therefore, the important topic that the brightness of glass, whiteness and transmitance and solution " variable color " problem become glass manufacture industry how is improved.
Glass production, because using a large amount of mineral raw material, can, inevitably containing a certain amount of impurity iron composition, make glass with yellow-green colour in various degree or blue-greenish colour.Mainly contain two kinds of methods at present to solve, first method is by main raw material(s) sandstone, quartzite rod milling, washing, reduces the content of iron in raw material, although can significantly improve the whiteness of glass, cost increases a lot, and fund input is large.Second method adds discoloring agent in the preparation technology of glass, improves glass colour.Prior art improves glass colour approach by adding discoloring agent mainly contains:
1, traditional selenium (or selenide), cobalt decolour: " glass technology " (China Light Industry Press, the 9th printing of the 1st edition calendar year 2001, the 190th page).
But traditional selenium or selenide, cobalt decolouring are very unstable, can change with the change of kiln melting technology, the increase along with consumption can reduce the light transmission of glass; In addition, along with the prolongation of glassy product shelf-time, be especially exposed to the sun under the sun and " expose to the sun selenium " can occur and produce discoloration problem, advantage is that cost is relatively low, nontoxic.
2, white arsenic coordinates the decolouring of selenium, cobalt: " glass technology " (China Light Industry Press, the 9th printing of the 1st edition calendar year 2001, the 190th page).
In order to improve selenium, cobalt decolouring stability in melting process, mentioning in " glass technology " and utilizing white arsenic to coordinate the decolouring of selenium, cobalt, increasing substantially brightness and the whiteness of glassy product, and selenium, cobalt decolour to stablize and be also significantly increased in melting process.But the shortcoming of this technology is white arsenic has toxicity, dispensing operation is dangerous and there is food safety potential problem.Meanwhile, the consumption of selenium powder will increase by more original formula, improves production cost.When white arsenic also can impel selenium, cobalt as discoloring agent, occur that glass is at the metachromatism of annealing and be exposed to the sun in process.
3, cerium oxide coordinates the decolouring of selenium, cobalt: " international glass " Chinese edition, in April, 2002.The shortcoming of this technology is that selenium powder consumption is relatively also more, and glass colour takes on a new look very little.Advantage to improve the refining quality of glass.
In addition, Chinese patent 102092941A discloses a kind of ultra-clear glasses, and comprehensive glass chemistry decolouring and physical decolorization method, add La in white float glass batch materials
2(CO
3)
3, Ce
2(CO
3)
3, Nd
2(CO
3)
3, MnO
2, CoO, CuSO
4, first make the Fe that in glass, tinting strength is stronger
2+change into the Fe that tinting strength is more weak
3+, then add discoloring agent, utilize the complementarity of light, eliminate glass colour, improve the transmitance of glass visible ray, reduce whiteness.But the decolouring of traditional discoloring agent cobalt, cerium is very unstable, can change with the change of kiln melting technology, the increase along with consumption can reduce the light transmission of glass; In addition, along with the prolongation of glassy product shelf-time, be especially exposed to the sun under the sun and " expose to the sun selenium " can occur and produce discoloration problem.
Therefore, generation discoloration problem is caused in order to solve the long-time and sun of glassy product " expose to the sun selenium " occurred of being exposed to the sun, the present invention will use a kind of new method and technology, both brightness and the whiteness of glassy product had been improved, simultaneously also improve the problems referred to above, meet the demand of market for high brightness and whiteness glassy product.
Summary of the invention
Embodiment of the present invention technical problem to be solved is, provides a kind of high brightness glass and preparation method thereof.Described high brightness glass uses Erbium trioxide to substitute traditional discoloring agent selenium powder or selenide, cobalt, cerium, and because Erbium trioxide thermal characteristics is stablized, its consumption is not substantially by the impact of melting conditions, and glassy product because the shelf-time is long, metachromatism can not occur.The brightness and the whiteness that are doped with the glassy product of Erbium trioxide reach high requirement simultaneously, substantially increase the quality of glassy product.
In order to solve the problems of the technologies described above, embodiments provide a kind of high brightness glass, the total raw material formula of described production high brightness glass comprises admixtion, and described admixtion is as follows with the main raw material formula of parts by weight:
Quartz sand 510 ~ 630
Soda ash 170 ~ 208
Calcite 130 ~ 164
Aluminium hydroxide 18 ~ 23
Erbium trioxide 0.2 ~ 0.25
Cobalt powder 0.0005 ~ 0.0007.
Preferably, the total raw material formula of described production high brightness glass comprises admixtion, and described admixtion is as follows with the main raw material formula of parts by weight:
Quartz sand 610 ~ 630
Soda ash 190 ~ 208
Calcite 150 ~ 164
Aluminium hydroxide 20 ~ 23
Erbium trioxide 0.22 ~ 0.25
Cobalt powder 0.0006 ~ 0.0007.
Preferably, described admixtion also comprises with the main raw material formula of parts by weight:
Finings saltcake 7 ~ 9.
Preferably, the total raw material formula of described production high brightness glass also comprises glass cullet, and the composition of described glass cullet is consistent with the composition of described admixtion;
Described admixtion accounts for 85% of total raw material, and described glass cullet account for 15% of total raw material.
Preferably, this kind of 40mm heavy sheet glass has and is greater than 94.3 ~ 95.3 at the visible light transmissivity of 380 ~ 780nm wavelength, and whiteness is less than 0.04 ~ 0.05.
Correspondingly, the embodiment of the present invention additionally provides a kind of preparation method of high brightness glass, comprises the following steps successively:
By the quartz sand of 510 ~ 630 weight parts, the soda ash of 170 ~ 208 weight parts, the calcite of 130 ~ 164 weight parts, the aluminium hydroxide of 18 ~ 23 weight parts, the Erbium trioxide of 0.2 ~ 0.25 weight part, the cobalt powder of 0.0005 ~ 0.0007 weight part weighs with weight proportion, enter mixing machine mixing, obtain admixtion;
The described glass cullet of the described admixtion of 85% and 15% are mixed, obtains mixing raw material;
Described mixing raw material is entered melting furnaces, is found under the condition of 1500 DEG C ~ 1650 DEG C to obtain glass metal in temperature;
At 1400 DEG C ~ 1450 DEG C temperature, the finings saltcake of 7 ~ 9 weight parts is joined the glass metal that described process is founded;
Pour in forming mould by the glass metal adding finings saltcake, slow cooling to 1200 DEG C ~ 1250 DEG C of cooling formings, annealing, obtains high brightness glass.
Preferably, described preparation method comprises the following steps successively:
By the quartz sand of 610 ~ 630 weight parts, the soda ash of 190 ~ 208 weight parts, the calcite of 150 ~ 164 weight parts, the aluminium hydroxide of 20 ~ 23 weight parts, the Erbium trioxide of 0.22 ~ 0.25 weight part, the cobalt powder of 0.0006 ~ 0.0007 weight part weighs with weight proportion, enters mixing machine mixing, obtains admixtion;
The described glass cullet of the described admixtion of 85% and 15% are mixed, obtains mixing raw material;
Described mixing raw material is entered melting furnaces, is found under the condition of 1550 DEG C ~ 1560 DEG C to obtain glass metal in temperature;
At 1420 DEG C ~ 1430 DEG C temperature, the finings saltcake of 7 ~ 9 weight parts is joined the glass metal that described process is founded;
Pour in forming mould by the glass metal adding finings saltcake, slow cooling to 1200 DEG C ~ 1250 DEG C of cooling formings, annealing, obtains high brightness glass.
Preferably, the described glass cullet of the described admixtion of 85% and 15% are mixed, before obtaining the step of mixing raw material, also comprise:
By described glass cullet surface cleaning.
Preferably, the composition of described glass cullet is consistent with the composition of described admixtion.
Preferably, this kind of 40mm heavy sheet glass has and is greater than 94.3 ~ 95.3 at the visible light transmissivity of 380 ~ 780nm wavelength, and whiteness is less than 0.04 ~ 0.05.
Implement the embodiment of the present invention, there is following beneficial effect:
The present invention is about a kind of high brightness glass and preparation method thereof, combine chemical decolorization and the physical decolorization method of glass, first make the ferrous iron that in glass, tinting strength is stronger be converted into the more weak ferric iron of tinting strength, the complementarity of recycling light, the color of glass is disappeared, reaches best effect.Compared with prior art, its improvement is to use Erbium trioxide to substitute traditional discoloring agent selenium powder or selenide, cobalt, cerium.Oxidation bait (Er
20
3) add on a small quantity can reinforcing glass to the reflection of ultraviolet light, and make ultraviolet transmission than reduce.In addition because Erbium trioxide thermal characteristics is stablized, its consumption is not substantially by the impact of melting conditions, and glassy product because the shelf-time is long, metachromatism can not occur.Meanwhile, Erbium trioxide can significantly improve the brightness of glass, whiteness and transmitance, improves the quality of glassy product.
Secondly, adopt Erbium trioxide to substitute selenium powder as discoloring agent, without the need to improving other quality requirements of raw materials of glass production again, just can reach and increasing substantially the brightness of product and the object of whiteness, fund input change is little, also meets the requirement in market simultaneously.
Again, adopt Erbium trioxide to substitute selenium powder as discoloring agent, thermal characteristics is stablized, and because it does not affect by melting conditions substantially, after substituting, the consumption of raw material is stablized, and product colour quality stability is good; And prior art adopts selenium powder as discoloring agent, larger because affecting by melting conditions, the consumption fluctuation of raw material is large, and product colour quality stability is also poor.
Finally, the present invention only adopts Erbium trioxide and cobalt powder just can reach high brightness and high whiteness, thus does not need and lanthanum trioxide and cerium oxide, has saved rare earth element.
Accompanying drawing explanation
Fig. 1 is the schema of the preparation method of a kind of high brightness glass of the present invention;
Fig. 2 is complementary colors look and wavelength corresponding diagram;
Fig. 3 is glassy product color transmittance curve figure.
Embodiment
For making the object, technical solutions and advantages of the present invention clearly, below in conjunction with accompanying drawing, the present invention is described in further detail.
Embodiments provide a kind of high brightness glass, the total raw material formula of described production high brightness glass comprises admixtion, and described admixtion is as follows with the main raw material formula of parts by weight:
Quartz sand 510 ~ 630
Soda ash 170 ~ 208
Calcite 130 ~ 164
Aluminium hydroxide 18 ~ 23
Erbium trioxide 0.2 ~ 0.25
Cobalt powder 0.0005 ~ 0.0007.
Preferably, the total raw material formula of described production high brightness glass comprises admixtion, and described admixtion is as follows with the main raw material formula of parts by weight:
Quartz sand 610 ~ 630
Soda ash 190 ~ 208
Calcite 150 ~ 164
Aluminium hydroxide 20 ~ 23
Erbium trioxide 0.22 ~ 0.25
Cobalt powder 0.0006 ~ 0.0007.
Quartz sand main component is S i O
2, S i O
2be the main component forming glass skeleton, the thermal expansivity of glass can be reduced, improve the thermostability of glass, chemical stability, softening temperature, thermotolerance, hardness, physical strength and viscosity etc.Content is too low, and the various performances of glass can decline, too high levels, and raw material is difficult to fusing.
Calcite main component is calcium carbonate mineral CaCO
3.
Oxidation bait (Er
20
3) add on a small quantity can reinforcing glass to the reflection of ultraviolet light, and make ultraviolet transmission than reducing, but the large colour developing of amount.Er in the present invention
20
3suitable amount be 0.2 ~ 0.25 weight part.
Cobalt powder CoO may have CoO in glass
6and CoO
4two kinds of co-ordination states, the former absorption band is near 550nm, and color is partially purple, energy and Fe
3+yellow-green colour complementary, the latter's absorption band is near 620nm, and color is partially blue, can and Fe
2+dark green is complementary.
Described admixtion also comprises with the main raw material formula of parts by weight:
Finings saltcake 7 ~ 9.
The present invention uses traditional saltcake finings, nontoxic, and clarifying effect is good, and cost compare is low.
Because a large amount of gas is separated out in the decomposition of each component of admixtion and volatilization etc., there is portion gas and do not overflow completely from glass melt, remain in glass metal with the form of bubble, have a strong impact on the quality of glassy product.Thus need to add finings saltcake, glass metal is clarified, eliminate the bubble of glass metal.
The total raw material formula of described production high brightness glass also comprises glass cullet, and the composition of described glass cullet is consistent with the composition of described admixtion;
Described admixtion accounts for 85% of total raw material, and described glass cullet account for 15% of total raw material.
This kind of 40mm heavy sheet glass has and is greater than 94.3 ~ 95.3 at the visible light transmissivity of 380 ~ 780nm wavelength, and whiteness is less than 0.04 ~ 0.05.
Correspondingly, as shown in Figure 1, the embodiment of the present invention additionally provides a kind of preparation method of high brightness glass, comprises the following steps successively:
S101, by the quartz sand of 510 ~ 630 weight parts, the soda ash of 170 ~ 208 weight parts, the calcite of 130 ~ 164 weight parts, the aluminium hydroxide of 18 ~ 23 weight parts, the Erbium trioxide of 0.2 ~ 0.25 weight part, the cobalt powder of 0.0005 ~ 0.0007 weight part weighs with weight proportion, enter mixing machine mixing, obtain admixtion.
Preferably, by the quartz sand of 610 ~ 630 weight parts, the soda ash of 190 ~ 208 weight parts, the calcite of 150 ~ 164 weight parts, the aluminium hydroxide of 20 ~ 23 weight parts, the Erbium trioxide of 0.22 ~ 0.25 weight part, the cobalt powder of 0.0006 ~ 0.0007 weight part weighs with weight proportion, enter mixing machine mixing, obtain admixtion.
The described glass cullet of the described admixtion of 85% and 15% are mixed, obtain mixing raw material by S102.
Preferably, before S102 step, also comprise:
By described glass cullet surface cleaning.
Preferably, the composition of described glass cullet is consistent with the composition of described admixtion.
S103, enters melting furnaces by described mixing raw material, is to found under the condition of 1500 DEG C ~ 1650 DEG C to obtain glass metal in temperature.
Preferably, described glass melting temperature is 1550 DEG C ~ 1560 DEG C.
Following physicochemical change can be there is in glass in the process of founding:
CaCO
3 + Na
2CO
3 = CaNa
2(CO
3)
2
β-quartz=alpha-quartz
CaNa
2(CO
3)
2 + 2SiO
2= Na
2SiO
3+ CaSiO
3 + 2CO
2↑
CaNa
2(CO
3)
2 + Na
2CO
3+3SiO
2=2 Na
2SiO
3+ CaSiO
3 + 3CO
2↑
CaCO
3=CaO+ CO
2↑
CaNa
2(CO
3)
2=Na
2O+ CaO+ 2CO
2↑
CaO+ SiO
2= CaSiO
3
With Er
2o
3finally can form the high brightness glass of the doping Erbium trioxide of high brightness, high whiteness and high permeability.
S104, at 1400 DEG C ~ 1450 DEG C temperature, joins the glass metal that described process is founded by the finings saltcake of 7 ~ 9 weight parts.
Preferably, the temperature adding finings saltcake is 1420 DEG C ~ 1430 DEG C.
S105, pours in forming mould by the glass metal adding finings saltcake, slow cooling to 1200 DEG C ~ 1250 DEG C of cooling formings, and annealing, obtains high brightness glass.
This kind of 40mm heavy sheet glass has and is greater than 94.3 ~ 95.3 at the visible light transmissivity of 380 ~ 780nm wavelength, and whiteness is less than 0.04 ~ 0.05.
The present invention is about a kind of high brightness glass and preparation method thereof, its glass uses Erbium trioxide to substitute traditional discoloring agent selenium powder or selenide, because Erbium trioxide thermal characteristics is stablized, its consumption is not substantially by the impact of melting conditions, and glassy product because the shelf-time is long, metachromatism can not occur.The simultaneously brightness of glassy product and whiteness reach high requirement, improve the quality of glassy product.
Soda-lime-silica glass production and application Erbium trioxide glass of the present invention can be coloured to rose, use selenium powder glass to be coloured to pink.Glass production, can inevitably containing a certain amount of impurity iron composition because using a large amount of mineral raw material, and its existence form has FeO and Fe
2o
3two kinds, wherein Fe
2+glassy product is made to be blue-greenish colour, Fe
3+glassy product is made to be yellow-green colour, Fe
2+tinting strength compare Fe
3+exceed tens times.But these iron ions all can reduce brightness and the whiteness of glass.
According to the complementarity principle of color, as shown in Fig. 2 complementary colors look and wavelength corresponding diagram, redness can form complementary color with green and weaken color keynote.Therefore, in traditional decoloring method, often add selenium powder or selenide to raw material, painted on glass pinkiness, pink is yellowish green with the main keynote of green complementation; And the Erbium trioxide that the present invention uses substitutes selenium powder or selenide as discoloring agent, painted on glass in rose, the micro-purple of the main keynote of words that rose is appropriate with green complementation.Violet wavelength is close to 390nm, and yellow-green colour wavelength is close to 560nm, human eye is higher than the susceptibility near 390nm to the color of 560nm, and namely aberration sense is stronger, so use Erbium trioxide to substitute selenium powder can reduce the susceptibility of human eye to color, thus promote brightness and the whiteness of glass.And Erbium trioxide stable performance, consumption does not change with the change of melting conditions substantially, and the glassy product being mixed with Erbium trioxide because the shelf-time is long, metachromatism can not occur.In addition, high brightness glass of the present invention is with the use of the cobalt powder of reasonable amount, and the cobalt powder of reasonable amount can make glass ribbon slight blue, arranges in pairs or groups glass colour can be made more high-grade on the high white glass of essence.
Tradition uses selenium powder decolouring glass and the present invention to use Erbium trioxide to dewater, and to carry out brightness, whiteness and transmitance simultaneous test as follows for glass:
One, simultaneous test material is prepared: the selenium powder decolouring glass of high brightness glass of the present invention and prior art
Selenium powder decolouring glass is prepared according to the formula of table one composition of raw materials 1;
Take the admixtion (according to table one composition of raw materials 2) of 85% and the glass cullet of 15%, and prepare the high brightness glass using Erbium trioxide decolouring with preparation method of the present invention.Wherein, the composition of described glass cullet is consistent with the composition of described admixtion.That is, described glass cullet are the rejected glass obtained by the present invention.
Table one is as follows:
It should be noted that, above each raw material is the raw material dosage of the various admixtion of ton glass metal.
Two, the Methods and steps of simultaneous test
Be of a size of the glass block of 1 × 5cm respectively from two kinds of glassy product cuttings, measure and record the thickness of glass; Respectively the glass block of described cutting is placed in spectrophotometer cary50 the transmitance carrying out detecting glass at different wavelengths, is converted into the transmitance under standard thickness (40mm) and is depicted as different wave length lower-glass transmitance comparison diagram (as shown in Figure 3).Go out the brightness (Y) of glass, purity (Pe) and predominant wavelength λ d according to the CIE system-computed of international lighting again, obtain table two---the optical property contrast of glass.
Three, comparative test result contrast
1, discoloring agent consumption
Selenium powder decolouring glass: selenium powder consumption 8 ~ 10g/T glass metal, cobalt powder 0.4 ~ 0.7g/T glass metal;
Erbium trioxide decolouring glass: Erbium trioxide consumption 200 ~ 250g/T glass metal, cobalt powder 0.5 ~ 0.7g/T glass metal.
2, glassy product quality of colour contrast
Use Erbium trioxide substitute selenium powder and conservative control cobalt powder consumption, the whiteness of glassy product increases substantially, brightness also be improved significantly, see Fig. 3 glassy product color transmittance curve figure and following table two glass optical property contrast:
As shown in Figure 3, curve 1 is the glass transmitance in 380nm ~ 760nm wavelength region using Erbium trioxide decolouring, and curve 2 is the glass transmitance in 380nm ~ 760nm wavelength region using selenium powder decolouring.From curve in figure, use glass transmitance in 380nm ~ 760nm wavelength region of Erbium trioxide decolouring substantially to remain near 95%, and the glass transmitance using selenium powder to decolour remain near 87% substantially, therefore, the two is compared, and transmitance of the present invention about adds 8%.It can thus be appreciated that, use Erbium trioxide greatly can promote the transmitance of glass relative to traditional discoloring agent as discoloring agent.
The CIE standard chroma system-computed set up according to the international luminouslighting council (be called for short CIE) goes out the brightness (Y) of glass, purity (Pe) and predominant wavelength λ d.Obtain following table two---the optical property contrast of glass:
| Project | Y（%） | Pe（%） | λd（nm） |
| To decolour glass with selenium powder | 87.9 | 0.83 | 577.8 |
| To decolour glass with Erbium trioxide | 95.3 | 0.05 | -561.4 |
It should be noted that, in table 2:
1. the brightness of .Y-glass, the perviousness being worth larger light is better, and glass is more transparent;
2. the purity of .Pe-glass colour, the whiteness being worth less glass is higher;
3.. the keynote of λ d-glass colour, different dominant wavelength ranges glass colour is different.
As shown in Table 2, analyze Y value known: the present invention uses Erbium trioxide as discoloring agent, the brightness coordinating the high brightness glass of cobalt powder is 95.3%, and the brightness using selenium powder decolouring glass in prior art is 87.9%.Namely compared with prior art, the brightness of glass of the present invention improves 7.4%, therefore, uses Erbium trioxide as discoloring agent, and the glass coordinating cobalt powder and obtain, it is better to the perviousness of light, and glass is more transparent, can significantly improve the brightness of glass.
Analyze Pe value known: the present invention uses Erbium trioxide as discoloring agent, the purity coordinating the high brightness glass of cobalt powder is 0.05%, and the purity using selenium powder decolouring glass in prior art is 0.83%.Namely compared with prior art, the purity drop 0.78% of glass of the present invention.Purity is lower, and the whiteness of glass is higher.Therefore, use Erbium trioxide as discoloring agent, and the glass coordinating cobalt powder and obtain, the whiteness of glass can be significantly improved.
In sum, use Erbium trioxide to substitute selenium powder as discoloring agent, and coordinate cobalt powder can significantly improve the brightness of glass, whiteness and transmitance.
The present invention is further illustrated below with specific embodiment.
Embodiment 1
High brightness glass main raw materials in proportion is as follows:
Quartz sand 510kg, soda ash 170kg, calcite 130kg, aluminium hydroxide 18kg, Erbium trioxide 0.2kg, cobalt powder 0.0005kg.
Embodiment 2
High brightness glass main raw materials in proportion is as follows:
Quartz sand 545kg, soda ash 185kg, calcite 130kg, aluminium hydroxide 19.3kg, Erbium trioxide 0.22kg, cobalt powder 0.0005kg.
Embodiment 3
High brightness glass main raw materials in proportion is as follows:
Quartz sand 570kg, soda ash 185kg, calcite 148kg, aluminium hydroxide 20.5kg, Erbium trioxide 0.22kg, cobalt powder 0.0006kg.
Embodiment 4
High brightness glass main raw materials in proportion is as follows:
Quartz sand 630kg, soda ash 208kg, calcite 164kg, aluminium hydroxide 23kg, Erbium trioxide 0.25kg, cobalt powder 0.0007kg.
Embodiment 5
High brightness glass main raw materials in proportion is as follows:
Quartz sand 620kg, soda ash 204kg, calcite 161kg, aluminium hydroxide 22.4kg, Erbium trioxide 0.245kg, cobalt powder 0.00065kg.
Embodiment 6
The preparation method of high brightness glass is as follows:
By the quartz sand of raw material 510kg, the soda ash of 170kg, the calcite of 130kg, the aluminium hydroxide of 18kg, the Erbium trioxide of 0.2kg, the cobalt powder of 0.0005kg weighs with weight proportion, enters mixing machine mixing, obtains admixtion;
The glass cullet of the admixtion of 85% and the surface cleaning of 15% are mixed, obtains mixing raw material;
Mixing raw material is entered melting furnaces, founds at 1550 DEG C ~ 1560 DEG C and obtain glass metal;
At 1420 DEG C ~ 1430 DEG C, 7kg finings saltcake is joined the glass metal that described process is founded;
Flow in forming mould by adding the glass metal of finings, slow cooling to 1200 DEG C ~ 1250 DEG C of cooling formings, annealing, the high brightness glass of the Erbium trioxide that obtains adulterating.
Embodiment 7
The preparation method of high brightness glass is as follows:
By the quartz sand of raw material 545kg, the soda ash of 185kg, the calcite of 130kg, the aluminium hydroxide of 19.3kg, the Erbium trioxide of 0.22kg, the cobalt powder of 0.0005kg weighs with weight proportion, enters mixing machine mixing, obtains admixtion;
The glass cullet of the admixtion of 85% and the surface cleaning of 15% are mixed, obtains mixing raw material;
Mixing raw material is entered melting furnaces, founds at 1550 DEG C ~ 1560 DEG C and obtain glass metal;
At 1420 DEG C ~ 1430 DEG C, 7.3kg finings saltcake is joined the glass metal that described process is founded; ;
Flow in forming mould by adding the glass metal of finings, slow cooling to 1200 DEG C ~ 1250 DEG C of cooling formings, annealing, the high brightness glass of the Erbium trioxide that obtains adulterating.
Embodiment 8
The preparation method of high brightness glass is as follows:
By the quartz sand of raw material 570kg, the soda ash of 185kg, the calcite of 148kg, the aluminium hydroxide of 20.5kg, the Erbium trioxide of 0.22kg, the cobalt powder of 0.0006kg weighs with weight proportion, enters mixing machine mixing, obtains admixtion;
The glass cullet of the admixtion of 85% and the surface cleaning of 15% are mixed, obtains mixing raw material;
Mixing raw material is entered melting furnaces, founds at 1550 DEG C ~ 1560 DEG C and obtain glass metal;
At 1420 DEG C ~ 1430 DEG C, 8kg finings saltcake is joined the glass metal that described process is founded;
Flow in forming mould by adding the glass metal of finings, slow cooling to 1200 DEG C ~ 1250 DEG C of cooling formings, annealing, the high brightness glass of the Erbium trioxide that obtains adulterating.
Embodiment 9
The preparation method of high brightness glass is as follows:
By the quartz sand of raw material 630kg, the soda ash of 208kg, the calcite of 164kg, the aluminium hydroxide of 23kg, the Erbium trioxide of 0.25kg, the cobalt powder of 0.0007kg weighs with weight proportion, enters mixing machine mixing, obtains admixtion;
The glass cullet of the admixtion of 85% and the surface cleaning of 15% are mixed, obtains mixing raw material;
Mixing raw material is entered melting furnaces, founds at 1550 DEG C ~ 1560 DEG C and obtain glass metal;
At 1420 DEG C ~ 1430 DEG C, 8.6kg finings saltcake is joined the glass metal that described process is founded;
Flow in forming mould by adding the glass metal of finings, slow cooling to 1200 DEG C ~ 1250 DEG C of cooling formings, annealing, the high brightness glass of the Erbium trioxide that obtains adulterating.
Embodiment 10
The preparation method of high brightness glass is as follows:
By the quartz sand of raw material 620kg, the soda ash of 204kg, the calcite of 161kg, the aluminium hydroxide of 22.4kg, the Erbium trioxide of 0.245kg, the cobalt powder of 0.0005kg weighs with weight proportion, enters mixing machine mixing, obtains admixtion;
The glass cullet of the admixtion of 85% and the surface cleaning of 15% are mixed, obtains mixing raw material;
Mixing raw material is entered melting furnaces, founds at 1550 DEG C ~ 1560 DEG C and obtain glass metal;
At 1420 DEG C ~ 1430 DEG C, 9kg finings saltcake is joined the glass metal that described process is founded;
Flow in forming mould by adding the glass metal of finings, slow cooling to 1200 DEG C ~ 1250 DEG C of cooling formings, annealing, the high brightness glass of the Erbium trioxide that obtains adulterating.
It should be noted that, the preparation method of the corresponding embodiment 6 of formula of above-described embodiment 1, the preparation method of the corresponding embodiment 7 of formula of embodiment 2, the preparation method of the corresponding embodiment 8 of formula of embodiment 3, the preparation method of the corresponding embodiment 9 of formula of embodiment 4, the preparation method of the corresponding embodiment 10 of formula of embodiment 5.
Above-described embodiment 6 to 10 is gone out the brightness (Y) of glass, purity (Pe) and predominant wavelength λ d according to the CIE standard chroma system-computed that the international luminouslighting council (be called for short CIE) sets up.Obtain following table three---the optical property contrast of glass:
| Project | Y（%） | Pe（%） | λd（nm） |
| Embodiment 1 | 94.3 | 0.040 | -561.4 |
| Embodiment 2 | 94.8 | 0.042 | -561.4 |
| Embodiment 3 | 95.1 | 0.048 | -561.4 |
| Embodiment 4 | 95.3 | 0.050 | -561.4 |
| Embodiment 5 | 95.2 | 0.046 | -561.4 |
Above disclosedly be only a kind of preferred embodiment of the present invention, certainly can not limit the interest field of the present invention with this, therefore according to the equivalent variations that the claims in the present invention are done, still belong to the scope that the present invention is contained.
Claims (10)
1. a high brightness glass, is characterized in that, the total raw material formula of described production high brightness glass comprises admixtion, and described admixtion is as follows with the composition of raw materials of parts by weight:
Quartz sand 510 ~ 630
Soda ash 170 ~ 208
Calcite 130 ~ 164
Aluminium hydroxide 18 ~ 23
Erbium trioxide 0.2 ~ 0.25
Cobalt powder 0.0005 ~ 0.0007.
2. high brightness glass according to claim 1, is characterized in that, the total raw material formula of described production high brightness glass comprises admixtion, and described admixtion is as follows with the composition of raw materials of parts by weight:
Quartz sand 610 ~ 630
Soda ash 190 ~ 208
Calcite 150 ~ 164
Aluminium hydroxide 20 ~ 23
Erbium trioxide 0.22 ~ 0.25
Cobalt powder 0.0006 ~ 0.0007.
3. the high brightness glass according to any one of claim 1 or 2, is characterized in that, described admixtion also comprises with the main raw material formula of parts by weight:
Finings saltcake 7 ~ 9.
4. high brightness glass according to claim 3, is characterized in that, the total raw material formula of described production high brightness glass also comprises glass cullet, and the composition of described glass cullet is consistent with the composition of described admixtion;
Described admixtion accounts for 85% of total raw material, and described glass cullet account for 15% of total raw material.
5. high brightness glass according to claim 4, is characterized in that, this kind of 40mm heavy sheet glass has and be greater than 94.3 ~ 95.3 at the visible light transmissivity of 380 ~ 780nm wavelength, and whiteness is less than 0.04 ~ 0.05.
6. a preparation method for high brightness glass, is characterized in that, comprises the following steps successively:
By the quartz sand of 510 ~ 630 weight parts, the soda ash of 170 ~ 208 weight parts, the calcite of 130 ~ 164 weight parts, the aluminium hydroxide of 18 ~ 23 weight parts, the Erbium trioxide of 0.2 ~ 0.25 weight part, the cobalt powder of 0.0005 ~ 0.0007 weight part weighs with weight proportion, enter mixing machine mixing, obtain admixtion;
The described glass cullet of the described admixtion of 85% and 15% are mixed, obtains mixing raw material;
Described mixing raw material is entered melting furnaces, is found under the condition of 1500 DEG C ~ 1650 DEG C to obtain glass metal in temperature;
At 1400 DEG C ~ 1450 DEG C temperature, the finings saltcake of 7 ~ 9 weight parts is joined the glass metal that described process is founded;
Pour in forming mould by the glass metal adding finings saltcake, slow cooling to 1200 DEG C ~ 1250 DEG C of cooling formings, annealing, obtains high brightness glass.
7. the preparation method of high brightness glass glass according to claim 6, is characterized in that, described preparation method comprises the following steps successively:
By the quartz sand of 610 ~ 630 weight parts, the soda ash of 190 ~ 208 weight parts, the calcite of 150 ~ 164 weight parts, the aluminium hydroxide of 20 ~ 23 weight parts, the Erbium trioxide of 0.22 ~ 0.25 weight part, the cobalt powder of 0.0006 ~ 0.0007 weight part weighs with weight proportion, enters mixing machine mixing, obtains admixtion;
The described glass cullet of the described admixtion of 85% and 15% are mixed, obtains mixing raw material;
Described mixing raw material is entered melting furnaces, is found under the condition of 1550 DEG C ~ 1560 DEG C to obtain glass metal in temperature;
At 1420 DEG C ~ 1430 DEG C temperature, the finings saltcake of 7 ~ 9 weight parts is joined the glass metal that described process is founded;
Pour in forming mould by the glass metal adding finings saltcake, slow cooling to 1200 DEG C ~ 1250 DEG C of cooling formings, annealing, obtains high brightness glass.
8. the preparation method of the high brightness glass glass according to any one of claim 6 or 7, is characterized in that, is mixed by the described glass cullet of the described admixtion of 85% and 15%, before obtaining the step of mixing raw material, also comprises:
By described glass cullet surface cleaning.
9. the preparation method of high brightness glass according to claim 8, is characterized in that, the composition of described glass cullet is consistent with the composition of described admixtion.
10. the preparation method of high brightness glass according to claim 9, is characterized in that, this kind of 40mm heavy sheet glass has and be greater than 94.3 ~ 95.3 at the visible light transmissivity of 380 ~ 780nm wavelength, and whiteness is less than 0.04 ~ 0.05.
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| CN102092941A (en) * | 2010-12-02 | 2011-06-15 | 内蒙古科技大学 | Ultra-white glass |
| CN102219375A (en) * | 2010-04-16 | 2011-10-19 | 信义光伏产业(安徽)控股有限公司 | Solar super-white rolling glass and preparation method thereof |
| CN102219376A (en) * | 2011-04-16 | 2011-10-19 | 浙江晶兴太阳能科技有限公司 | Preparation method of solar ultrawhite ultrathin glass and product thereof |
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| CN102092941A (en) * | 2010-12-02 | 2011-06-15 | 内蒙古科技大学 | Ultra-white glass |
| CN102219376A (en) * | 2011-04-16 | 2011-10-19 | 浙江晶兴太阳能科技有限公司 | Preparation method of solar ultrawhite ultrathin glass and product thereof |
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