CN102786225A - Low-boron fluoride-free fiberglass composition - Google Patents
Low-boron fluoride-free fiberglass composition Download PDFInfo
- Publication number
- CN102786225A CN102786225A CN2012103088867A CN201210308886A CN102786225A CN 102786225 A CN102786225 A CN 102786225A CN 2012103088867 A CN2012103088867 A CN 2012103088867A CN 201210308886 A CN201210308886 A CN 201210308886A CN 102786225 A CN102786225 A CN 102786225A
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- CN
- China
- Prior art keywords
- glass
- boron fluoride
- low
- agalmatolite
- pyrophyllite
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Classifications
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL 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
- C03C13/00—Fibre or filament compositions
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL 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
- C03C3/00—Glass compositions
- C03C3/04—Glass compositions containing silica
- C03C3/076—Glass compositions containing silica with 40% to 90% silica, by weight
- C03C3/089—Glass compositions containing silica with 40% to 90% silica, by weight containing boron
- C03C3/091—Glass compositions containing silica with 40% to 90% silica, by weight containing boron containing aluminium
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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 invention relates to production of low-boron fluoride-free TAG glass and provides a production process of low-boron fluoride-free TAG glass by calcined alumina instead of pyrophyllite. The production process is characterized in that the calcined alumina replacing the pyrophyllite is used as one of main materials for production of the TAG glass, and impurities in the glass are reduced; content of total iron in the glass is lowered, diathermancy of glass melt is improved, passage temperature is reduced, and energy consumption is lowered; the quality of the TAG glass produced with the calcined alumina is improved greatly, SO2 emission generated in waste gas produced by using the pyrophyllite as material is controlled, and environmental pollution is reduced; and materials stress due to shortage of the pyrophyllite is also relieved.
Description
Technical field
The present invention relates to the use of a kind of new raw material Calcined polishing aluminum oxide in low boron floride-free glass fibre compsn; The low boron floride-free glass fibre of using this explained hereafter is not only from further having satisfied client's demand in appearance; And alleviated the pressure of environment more, reduced the applying pressure of agalmatolite.
Background technology
Low boron fluoride-free glass will exceed much with respect to common E glass glass metal viscosity, the bad control of kiln liquid level foam layer aspect melting end, and the setting of path temperature is also high, moreover, more is easy to generate crystallization in the path.Aspect wire-drawing operation, the temperature of glass liquid gradient sharply rises, and the bushing temperature also rises significantly, and near the crystallization phenomenon the bushing is also more general, has aggravated the aging of bushing, and the increase of path thermograde, has increased the difficulty of wire-drawing temperature homogeneity control.
Through adjusting glass formula, reduce the total iron content in the glass, the control ferrous content improves the diathermancy homogeneity of glass metal and can effectively improve an above difficult problem that when the boron fluoride-free glass is hanged down in production, runs into.
In the process of the low boron floride-free glass fibre of traditional mode of production, mainly use agalmatolite and introduce Al
2O
3Al in the present agalmatolite
2O
3About about 20%, the agalmatolite consumption accounts for about 40% of total raw material total amount to content greatly.And along with the enlarging of production line, the continuous increase of output, also increasing to the pressure of agalmatolite ore material storage yard area, the agalmatolite quality constantly descends simultaneously, and the agalmatolite of the high potassium of the high titanium of some high ferros is abandoned because not satisfying the production demand.And the agalmatolite reserves are also in continuous minimizing, and its supply of material is in short supply also to be acid test to us.Our the present just agalmatolite iron level of usefulness also is to improve constantly, and this all has certain negative impact to the production of product and the outward appearance of product.
To above situation, we constantly seek to explore and use new raw material, through a large amount of laboratory experiments and theoretical direction, and the Calcined polishing aluminum oxide that we have come into operation in production line and can replace agalmatolite to use fully.
Summary of the invention
The objective of the invention is to problem to above-mentioned existence; Use a kind of a kind of new raw material that can replace the low boron fluoride-free glass of agalmatolite ore raw material production fully; Satisfy the demand of client on product appearance, alleviate the pressure that agalmatolite is in short supply and storage space brings.Use the diathermancy and the temperature of glass liquid that have improved glass metal behind the calcined oxide aluminium substitution agalmatolite to reduce room temps simultaneously, reduced the erosion of refractory materials and can effectively prolong furnace service life; And reduced energy consumption, stablized production, reduced Financial cost to a certain extent; Use the use range that Calcined polishing aluminum oxide can open agalmatolite; The agalmatolite that some are second-rate; Agalmatolite like high ferro, high titanium and high potassium also can come into operation with the Calcined polishing aluminum oxide collocation, and the agalmatolite that goes out of use so originally can be applied to produce with low price.
This glass formula adopts low boron fluoride-free glass prescription exactly, with the agalmatolite in the calcined oxide aluminium substitution raw material.
Concrete compsn comprises: 56-61wt% SiO
213-14 wt% Al
2O
320-26.5wt% RO, wherein RO is CaO, MgO, SrO and BaO sum; The alkalimetal oxide of 0-1.0%.
This glass composition uses Fe
2O
3The Calcined polishing aluminum oxide that content is lower replaces a certain amount of agalmatolite, has both reduced the applying pressure of pyrophyllite deposit, can reduce the unnecessary impurity in the glass again; Reduce the total iron content in the spun glass simultaneously, improve the diathermancy of glass metal, effectively reduce the fiberization temperature of glass metal; Reduced the applying pressure of path temperature and kiln; And obviously improved the color of spun glass, alleviated corrosion, prolonged the work-ing life of bushing the platinum bushing.
Calcined polishing aluminum oxide is by bauxite sintering, and bauxitic clay is to be decomposed by kaolin, and major ingredient is an aluminum oxide, white lake, silicon oxide, ironic hydroxide, kaolin.The Calcined polishing aluminum oxide that comes through the processing of incinerating bauxitic clay is a fine chemical product, and purity is very high, and mass component is very stable.The bauxitic clay standing stock are huge, in a very long time, need not to worry the supply problem of Calcined polishing aluminum oxide.
The low more common E glass of boron fluoride-free glass is wanted refractory, and clarification is difficult more.My company uses electricity fusing-aid to efficiently solve this difficult problem when the boron fluoride-free glass is hanged down in production.Electricity fusing-aid is to adopt electrode directly to insert the mode of glass metal heating, and capacity usage ratio is high, and near the temperature of glass liquid the electrode can have good effect to forcing the glass metal fusing up to more than 1700 ℃.Use calcined oxide aluminium substitution agalmatolite to produce this kind glass fiber compound, the total iron content in the glass reduces, thereby has improved the diathermancy of glass metal, and the electricity fusing-aid input reduces, and greatly reduces energy consumption.And along with the increase of calcined oxide aluminium substitution agalmatolite amount, total iron constantly reduces the electricity fusing-aid energy consumption and also reduces gradually.
The temperature of glass metal itself raises behind the use Calcined polishing aluminum oxide, and room temps descends, and the erosion that has reduced refractory materials also can prolong the life-span of kiln.
Use Calcined polishing aluminum oxide not only to reduce the energy consumption of electricity fusing-aid aspect, also effectively reduce gas quantity, and the raising of using along with Calcined polishing aluminum oxide, gas quantity also constantly reduces.Broken end quantity obviously reduces after in low boron fluoride-free glass, using Calcined polishing aluminum oxide, and production run efficient improves greatly, produces also more stable.
Use the calcined oxide aluminium substitution agalmatolite of sulfur-bearing not to greatly reduce the introducing of sulphur in the raw material, sulphur content reduces greatly in the flue gas, has reduced environmental stress.
Embodiment
Followingly according to case study on implementation the present invention is elaborated, the embodiment glass of listing in the table 1 is formed the composition that all is based on claim of the present invention.
Al in the Calcined polishing aluminum oxide
2O
3Content is more than 99%, and Fe
2O
3Content is below 0.02%, and with the low boron fluoride-free glass of calcined oxide aluminium substitution agalmatolite production, Calcined polishing aluminum oxide only accounts for about 13% of raw material total amount, just can reach the Al that designs in the glass
2O
3Content.Effective like this storage space that discharged has reduced the usage quantity of agalmatolite, effectively reduces composition such as ferrotitanium content in the glass, has improved the appearance color of product.
Table 1
Chemical constitution according to listed each prescription of last table calculates various raw material institute expense; Accurately mix after the weighing and be mixed with admixtion; This admixtion is added in the electricity fusing-aid kiln, and the glass metal that melts is drawn into low boron floride-free glass fibre by the platinum rhodium bushing.
Claims (3)
1. one kind low boron floride-free glass fibre compsn is characterized in that using Calcined polishing aluminum oxide, silica sand, unslaked lime, Natural manganese dioxide, soda ash and boron magnesium calcium prescription to make, and wherein Calcined polishing aluminum oxide accounts for the 13%-15% of raw material total amount.
2. like a kind of low boron fluoride-free glass compsn of claim, it comprises:
56-61wt%?SiO
2；
13-14?wt%?Al
2O
3；
20-26.5wt% RO, wherein RO is CaO, MgO, SrO and BaO sum;
The alkalimetal oxide of 0-1.0%; Surplus is a unavoidable impurities.
3. a kind of low boron fluoride-free glass compsn as claimed in claim 2, it comprises:
59wt%?SiO
2；
13wt%?Al
2O
3；
23wt% CaO; 2.75wt% MgO, 0.5wt%B
2O
30.78wt%R
2O; 0.27wt%Fe2O3; Surplus is a unavoidable impurities.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012103088867A CN102786225A (en) | 2012-08-28 | 2012-08-28 | Low-boron fluoride-free fiberglass composition |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012103088867A CN102786225A (en) | 2012-08-28 | 2012-08-28 | Low-boron fluoride-free fiberglass composition |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102786225A true CN102786225A (en) | 2012-11-21 |
Family
ID=47151836
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012103088867A Pending CN102786225A (en) | 2012-08-28 | 2012-08-28 | Low-boron fluoride-free fiberglass composition |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102786225A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105217962A (en) * | 2015-09-21 | 2016-01-06 | 泰山玻璃纤维有限公司 | A kind of low boron floride-free glass fibre composition |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4102692A (en) * | 1975-07-23 | 1978-07-25 | Bayer Aktiengesellschaft | Reinforcing glass fibers of MgO-CaO-ZnO-Al2 O3 -SiO2 -TiO2 |
| GB2045228A (en) * | 1978-12-08 | 1980-10-29 | Polska Akad Nauk Tries | Glass fibre making process |
| CN101113072A (en) * | 2007-06-28 | 2008-01-30 | 巨石集团有限公司 | Alkali-free glass and manufacturing technique thereof |
| CN101300200A (en) * | 2005-11-04 | 2008-11-05 | Ocv智识资本有限责任公司 | Method of manufacturing high performance glass fibers in a refractory lined melter and fiber formed thereby |
| CN101700961A (en) * | 2009-07-17 | 2010-05-05 | 泰山玻璃纤维有限公司 | Glass fiber formula |
| CN101767934A (en) * | 2009-12-18 | 2010-07-07 | 泰山玻璃纤维有限公司 | Floride-free low-boron and alkaline-free glass fiber prescription and preparation method |
| CN102050583A (en) * | 2010-10-27 | 2011-05-11 | 泰山玻璃纤维有限公司 | Chemical corrosion resistant fiberglass |
| CN102491644A (en) * | 2011-11-16 | 2012-06-13 | 泰山玻璃纤维有限公司 | High magnesium content boron-free glass fiber |
-
2012
- 2012-08-28 CN CN2012103088867A patent/CN102786225A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4102692A (en) * | 1975-07-23 | 1978-07-25 | Bayer Aktiengesellschaft | Reinforcing glass fibers of MgO-CaO-ZnO-Al2 O3 -SiO2 -TiO2 |
| GB2045228A (en) * | 1978-12-08 | 1980-10-29 | Polska Akad Nauk Tries | Glass fibre making process |
| CN101300200A (en) * | 2005-11-04 | 2008-11-05 | Ocv智识资本有限责任公司 | Method of manufacturing high performance glass fibers in a refractory lined melter and fiber formed thereby |
| CN101113072A (en) * | 2007-06-28 | 2008-01-30 | 巨石集团有限公司 | Alkali-free glass and manufacturing technique thereof |
| CN101700961A (en) * | 2009-07-17 | 2010-05-05 | 泰山玻璃纤维有限公司 | Glass fiber formula |
| CN101767934A (en) * | 2009-12-18 | 2010-07-07 | 泰山玻璃纤维有限公司 | Floride-free low-boron and alkaline-free glass fiber prescription and preparation method |
| CN102050583A (en) * | 2010-10-27 | 2011-05-11 | 泰山玻璃纤维有限公司 | Chemical corrosion resistant fiberglass |
| CN102491644A (en) * | 2011-11-16 | 2012-06-13 | 泰山玻璃纤维有限公司 | High magnesium content boron-free glass fiber |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105217962A (en) * | 2015-09-21 | 2016-01-06 | 泰山玻璃纤维有限公司 | A kind of low boron floride-free glass fibre composition |
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Application publication date: 20121121 |