CN103395984A - Method for reducing microbubbles of alumina silicate glass - Google Patents
Method for reducing microbubbles of alumina silicate glass Download PDFInfo
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- CN103395984A CN103395984A CN2013103550297A CN201310355029A CN103395984A CN 103395984 A CN103395984 A CN 103395984A CN 2013103550297 A CN2013103550297 A CN 2013103550297A CN 201310355029 A CN201310355029 A CN 201310355029A CN 103395984 A CN103395984 A CN 103395984A
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Abstract
The invention relates to a method for reducing microbubbles of a piece of alumina silicate glass. The optimal founding and homogenization effects are realized by special grain size distribution of glass batch, the alumina silicate glass with fewer bubbles and small diameter bubbles is obtained, and the use requirement of the special glass for electronic information display is met. Specifically, the granular size of the glass batch such as feldspar, silica sand, dolomite, limestone, sodium carbonate and mirabilite is controlled to be in a specific range, due to the optimization and matching of larger granular raw materials and smaller granular raw materials, the reaction homogeneity and completeness of the batch are realized, the optimal founding effect is realized, and the excellent alumina silicate glass with fewer bubbles and small diameter bubbles is obtained.
Description
Technical field
The present invention relates to the preparation method of alumina silicate glass, particularly by the particular level of granularity formula formula of controlling admixtion, realize the method that the alumina silicate glass microbubble reduces.
Background technology
In the glass smelting process, bubble is a kind of the most common defect, and it can affect outward appearance, transparency, physical strength and the hardness etc. of glasswork, when the remaining glass that the some amount microbubble arranged is used for electronic information and shows, will be fatal.
Summary of the invention
Purpose of the present invention is in order to solve the defect of the some amount microbubble that has the alumina silicate glass existence now, what propose a kind ofly realizes better technical scheme of founding with homo-effect with the specific grain size distribution of admixtion, obtains the alumina silicate glass that number of bubbles is few, bubble diameter is little.
The technical solution used in the present invention is as follows:
A kind of method that reduces the alumina silicate glass microbubble, comprise the alumina silicate glass admixtion that is formed by following raw material: feldspar, silica sand, rhombspar, Wingdale, soda ash, saltcake, the component of the alumina silicate glass of making is counted by the mass percent of oxide compound: SiO2 62～65wt.%; Al2O3 12～15wt.%; MgO 1～4wt.%; CaO 1～3wt.%; Na2O 11～15wt.%; K2O 1～3wt.% is characterized in that: the raw material granularity grating mode for preparing in the admixtion of alumina silicate glass is carried out according to following proportioning:
(1) feldspar: particle diameter is the 75wt.% that the feldspar particle consumption of 0.1～0.25mm accounts for total feldspar amount, and particle diameter is the 25wt.% that the feldspar particle consumption of 0.4～0.55mm accounts for total feldspar amount;
(2) rhombspar: particle diameter is the 15wt.% that the dolomite particles consumption of 0.075～0.125mm accounts for total rhombspar amount, and particle diameter is the 85wt.% that the dolomite particles consumption of 2.0～2.5mm accounts for total rhombspar amount;
(3) Wingdale: particle diameter is the 15wt.% that the limestone particle consumption of 0.08～0.15mm accounts for total Wingdale amount, and particle diameter is the 85wt.% that the limestone particle consumption of 2.5～3.0mm accounts for total Wingdale amount;
(4) silica sand: particle diameter is the 90wt.% that the silica sand particle consumption of 0.1～1mm accounts for total silica sand amount, and particle diameter is the 10wt.% that the silica sand particle consumption of 0.085～0.1mm accounts for total silica sand amount;
(5) soda ash: particle diameter is the 75wt.% that the soda ash particle consumption of 0.1～1mm accounts for total soda ash amount, and particle diameter is the 25wt.% that the soda ash particle consumption of 0.055～0.1mm accounts for total soda ash amount;
(6) saltcake: particle diameter is the 90wt.% that the saltcake particle consumption of 0.1～1mm accounts for total saltcake amount, and particle diameter is the 10wt.% that the saltcake particle consumption of 0.08～0.1mm accounts for total saltcake amount.
On the basis of technique scheme, following further technical scheme can be arranged:
The admixtion of described grain size distribution is fired according to the following steps:
(1) rise to 1630 ℃ with the temperature rise rate of 3～5 ℃/minute by room temperature, and be incubated 2～3 hours;
(2) be down to 1610 ℃ with the rate of temperature fall of 1～3 ℃/minute by 1630 ℃, and be incubated 1.5～2 hours;
(3) carry out the moulding of glass metal at 1610 ℃ of temperature;
(4) in the temperature range of 600～750 ℃, the glasswork of moulding is carried out anneal.
The existence of microbubble in glass is mainly that the reaction of the fusing in the process of founding not exclusively and the glass metal homogenizing is insufficient by admixtion to be caused, and the granularity of frit has influence on fusing and the homogenizing of glass.The granularity of frit is less, and the contact area between raw material is just larger, and reaction surface is also just larger, thereby the speed of response of stock yard is also larger, and on the contrary, when raw material granularity was bigger than normal, the speed that reacts between raw material was slower, made burn-off rate slack-off.If but raw material granularity is too small, easily produce and fly upward and lump, the less raw material of granularity can participate in reaction prematurely simultaneously, causes admixtion to found layering, also can affect founding of glass, is unfavorable for the homogenizing of glass.Therefore, size classification how to control glass batch is the key that obtains the few and high quality glass that bubble diameter is little of entrapped air pockets quantity.
A kind of method that reduces the alumina silicate glass microbubble provided by the invention, specified particle size grating by glass batch, be in the same admixtion, the intergranular optimization of different-grain diameter, realize the best effect of founding, obtain the fine aluminum silicate glass that bubbles number is few, bubble diameter is little.
Description of drawings
Fig. 1, Fig. 2 and Fig. 3 are for utilizing the inner remaining bubble picture of the captured alumina silicate glass of super depth-of-field microscope, for amplifying the effect after 100 times;
The bubble picture of the alumina silicate glass sample that Fig. 1 and Fig. 2 fire for the admixtion that does not adopt grain size distribution;
The bubble picture of the alumina silicate glass sample that Fig. 3 fires for the grain size distribution mode that adopts the present invention to propose.
Embodiment
Below in conjunction with specific embodiment, the present invention is set forth in detail.
Embodiment:
1, use feldspar, silica sand, rhombspar, Wingdale, soda ash, saltcake as the raw material of burning glass, the chemical constitution of various raw materials is as shown in table 1.
The chemical constitution of table 1 raw material (wt.%)
2, consisting of of the glass oxide compound that will fire: SiO
265wt.%; Al
2O
314wt.%; MgO 2wt.%; CaO 3wt.%; Na
2O 13wt.%; K
2O 2wt.%.
3, according to the content of oxide compound in the above-mentioned glass composition that will fire, calculate respectively the consumption of each admixtion, add a certain amount of carbon dust simultaneously in admixtion, their consumption is as shown in table 2.
Table 2 admixtion scale
| Material name | Feldspar | Silica sand | Rhombspar | Wingdale | Soda ash | Saltcake | Carbon dust |
| Quality (g) | 312 | 52 | 36.8 | 1.9 | 90.8 | 8 | 0.24 |
4, then with admixtion, choose raw material and sieve out the particle of corresponding particle size range by following grain size distribution mode, mix fully.
(1) feldspar: sieving and take particle diameter is feldspar particle 234 grams of 0.1～0.25mm, and sieving and take particle diameter is feldspar particle 78 grams of 0.4～0.55mm;
(2) rhombspar: sieving and take particle diameter is dolomite particles 5.52 grams of 0.075～0.125mm, and sieving and take particle diameter is dolomite particles 31.3 grams of 2.0～2.5mm;
(3) Wingdale: sieving and take particle diameter is limestone particle 0.29 gram of 0.08～0.15mm, and sieving and take particle diameter is limestone particle 1.62 grams of 2.5～3.0mm;
(4) silica sand: sieving and take particle diameter is silica sand particle 46.8 grams of 0.1～1mm, and sieving and take particle diameter is silica sand particle 5.2 grams of 0.085～0.1mm;
(5) soda ash: sieving and take particle diameter is soda ash particle 68.1 grams of 0.1～1mm; Sieving and take particle diameter is soda ash particle 22.7 grams of 0.055～0.1mm;
(6) saltcake: sieving and take particle diameter is saltcake particle 7.2 grams of 0.1～1mm, and sieving and take particle diameter is saltcake particle 0.8 gram of 0.08～0.1mm.
Above-mentioned admixtion carries out founding of glass by following melting system after evenly mixing:
(1) rise to 1630 ℃ by room temperature with the temperature rise rate of 2.5 ℃/minute, and be incubated 2.5 hours;
(2) be down to 1610 ℃ with the rate of temperature fall of 2 ℃/minute by 1630 ℃, and be incubated 2 hours;
(3) carry out the moulding of glass metal at 1610 ℃ of temperature;
(4) at the temperature of 720 ℃, the glasswork of moulding is carried out anneal.
Obtain thus the alumina silicate glass that remaining microbubble quantity is few, bubble diameter is little, as shown in Figure 3, be the microbubble picture of the inside glass that utilizes 100 times of amplifications that super depth-of-field microscope takes.And Fig. 1 is the bubble picture of the alumina silicate glass goods of melting system same as the previously described embodiments and identical oxide compound proportioning, difference is, it is not according to grain size distribution mode of the present invention, but all admixtiones are all selected identical granularity,, for the relative larger particle size of the present invention, be 0.2～0.5mm; And Fig. 2 is the less particle size of relative the present invention for all raw material particle sizes, is 0.05～0.1mm.By Fig. 1, Fig. 2 and Fig. 3 as seen, the grain size distribution mode that the present invention proposes can effectively reduce the remaining number of bubbles of alumina silicate glass and bubble diameter, meets electronic information and shows requirement with special glass.
The above, be only preferred embodiment of the present invention, not the present invention done any pro forma restriction; Any those of ordinary skill in the art, do not breaking away from technical solution of the present invention scope situation, can utilize method and the technology contents of above-mentioned announcement to make many possible changes and modification to technical solution of the present invention, or be revised as the equivalent embodiment of equivalent variations.Therefore, every content that does not break away from technical solution of the present invention, any simple modification of above-described embodiment being done according to technical spirit of the present invention, be equal to replacements, equivalence changes and modify, all still belong in the scope that technical solution of the present invention protects.
Claims (2)
1. method that reduces the alumina silicate glass microbubble, comprise the alumina silicate glass admixtion that is comprised of following raw material: feldspar, silica sand, rhombspar, Wingdale, soda ash, saltcake, the component of the alumina silicate glass of making is counted by the mass percent of oxide compound: SiO
262～65wt.%; Al
2O
312～15wt.%; MgO 1～4wt.%; CaO 1～3wt.%; Na
2O 11～15wt.%; K
2O 1～3wt.% is characterized in that: the raw material granularity grating mode for preparing in the admixtion of alumina silicate glass is carried out according to following proportioning:
(1) feldspar: particle diameter is the 75wt.% that the feldspar particle consumption of 0.1～0.25mm accounts for total feldspar amount, and particle diameter is the 25wt.% that the feldspar particle consumption of 0.4～0.55mm accounts for total feldspar amount;
(2) rhombspar: particle diameter is the 15wt.% that the dolomite particles consumption of 0.075～0.125mm accounts for total rhombspar amount, and particle diameter is the 85wt.% that the dolomite particles consumption of 2.0～2.5mm accounts for total rhombspar amount;
(3) Wingdale: particle diameter is the 15wt.% that the limestone particle consumption of 0.08～0.15mm accounts for total Wingdale amount, and particle diameter is the 85wt.% that the limestone particle consumption of 2.5～3.0mm accounts for total Wingdale amount;
(4) silica sand: particle diameter is the 90wt.% that the silica sand particle consumption of 0.1～1mm accounts for total silica sand amount, and particle diameter is the 10wt.% that the silica sand particle consumption of 0.085～0.1mm accounts for total silica sand amount;
(5) soda ash: particle diameter is the 75wt.% that the soda ash particle consumption of 0.1～1mm accounts for total soda ash amount, and particle diameter is the 25wt.% that the soda ash particle consumption of 0.055～0.1mm accounts for total soda ash amount;
(6) saltcake: particle diameter is the 90wt.% that the saltcake particle consumption of 0.1～1mm accounts for total saltcake amount, and particle diameter is the 10wt.% that the saltcake particle consumption of 0.08～0.1mm accounts for total saltcake amount.
2. a kind of method that reduces the alumina silicate glass microbubble according to claim 1, is characterized in that, the admixtion of described grain size distribution is fired according to the following steps:
(1) rise to 1630 ℃ with the temperature rise rate of 3～5 ℃/minute by room temperature, and be incubated 2～3 hours;
(2) be down to 1610 ℃ with the rate of temperature fall of 1～3 ℃/minute by 1630 ℃, and be incubated 1.5～2 hours;
(3) carry out the moulding of glass metal at 1610 ℃ of temperature;
(4) in the temperature range of 600～750 ℃, the glasswork of moulding is carried out anneal.
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107010833A (en) * | 2017-04-06 | 2017-08-04 | 蚌埠玻璃工业设计研究院 | A kind of preparation method of thin-film solar cells glass substrate |
| CN108473360A (en) * | 2015-12-25 | 2018-08-31 | 日本电气硝子株式会社 | The manufacturing method of the tubular glass of silicate glass mixed raw material and the use raw material |
| CN108483901A (en) * | 2018-06-05 | 2018-09-04 | 中建材蚌埠玻璃工业设计研究院有限公司 | A kind of alkali-free glass batch of silicon sand size grading |
| CN109279775A (en) * | 2017-07-19 | 2019-01-29 | 王奔强 | A kind of glass processing method |
| CN109626831A (en) * | 2019-01-16 | 2019-04-16 | 河南光远新材料股份有限公司 | A method of reducing residual microbubbles in electronic glass fibers |
| CN109952277A (en) * | 2016-11-14 | 2019-06-28 | Ａｇｃ株式会社 | The manufacturing method of melten glass and the manufacturing method of glass article |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20100224619A1 (en) * | 2009-03-05 | 2010-09-09 | Klaus Schoenberger | Method of environmentally friendly melting and refining of a glass melt for a crystallizable glass of a lithium aluminium silicate (las) glass ceramic |
| CN102976587A (en) * | 2012-12-22 | 2013-03-20 | 蚌埠玻璃工业设计研究院 | Clarification method of alumina silicate glass melts |
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2013
- 2013-08-15 CN CN201310355029.7A patent/CN103395984B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20100224619A1 (en) * | 2009-03-05 | 2010-09-09 | Klaus Schoenberger | Method of environmentally friendly melting and refining of a glass melt for a crystallizable glass of a lithium aluminium silicate (las) glass ceramic |
| CN102976587A (en) * | 2012-12-22 | 2013-03-20 | 蚌埠玻璃工业设计研究院 | Clarification method of alumina silicate glass melts |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108473360A (en) * | 2015-12-25 | 2018-08-31 | 日本电气硝子株式会社 | The manufacturing method of the tubular glass of silicate glass mixed raw material and the use raw material |
| CN109952277A (en) * | 2016-11-14 | 2019-06-28 | Ａｇｃ株式会社 | The manufacturing method of melten glass and the manufacturing method of glass article |
| CN109952277B (en) * | 2016-11-14 | 2021-12-31 | Ａｇｃ株式会社 | Method for producing molten glass and method for producing glass article |
| CN107010833A (en) * | 2017-04-06 | 2017-08-04 | 蚌埠玻璃工业设计研究院 | A kind of preparation method of thin-film solar cells glass substrate |
| CN109279775A (en) * | 2017-07-19 | 2019-01-29 | 王奔强 | A kind of glass processing method |
| CN108483901A (en) * | 2018-06-05 | 2018-09-04 | 中建材蚌埠玻璃工业设计研究院有限公司 | A kind of alkali-free glass batch of silicon sand size grading |
| CN109626831A (en) * | 2019-01-16 | 2019-04-16 | 河南光远新材料股份有限公司 | A method of reducing residual microbubbles in electronic glass fibers |
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Application publication date: 20131120 Assignee: In building materials (Bengbu) photoelectric material Co Ltd Assignor: Bengbu design Institute of Glass Industry Contract record no.: 2016340000005 Denomination of invention: Method for reducing microbubbles of alumina silicate glass Granted publication date: 20150708 License type: Common License Record date: 20160418 |
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