Initial composition for glass fibres producing and glass fibre obtained from it
Abstract
FIELD: glass.SUBSTANCE: invention relates to glass compositions for producing high-modulus and high-strength glass fibres. Initial composition for glass fibre producing contains following components, wt%: from approximately 60.5 to approximately 70.5 of SiO; from approximately 10 to approximately 24.5 of AlO; from approximately 11.96 to approximately 20 of alkali-earth metal oxide, from 0 to approximately 3 of alkali metals oxides. Said alkali-earth metal oxide denotes sum of MgO, CaO, SrO and BaO, where amount of MgO in said alkali-earth metal oxide makes at least 5 wt% of mentioned initial composition and amount of CaO in said alkali-earth metal oxide is less than 6.96 wt% of mentioned initial composition.EFFECT: technical result consists in reduction of fiberization temperature, increase of difference between liquidus temperature and fiberization temperature, which leads to fiber higher elasticity and helps to prevent glass devitrification.20 cl, 8 tbl
Term
No projected expiry on record.
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40 claims: 40 independent, 0 dependent
- 1A glass fiber obtained from the starting composition, comprising:1. Стеклянное волокно, полученное из исходной композиции, содержащей: 1. Стеклянное волокно, полученное из исходной композиции, содержащей: от приблизительно 60,5 до приблизительно 70,5 вес.% SiO2;от приблизительно 10 до приблизительно 24,5 вес.% Al2O3;от приблизительно 11,96 до приблизительно 20 вес.% окиси щелочно-земельного металла, причем указанная окись щелочно-земельного металла обозначает сумму MgO, CaO, SrO и ВаО, где количество MgO в указанной окиси щелочно-земельного металла составляет по меньшей мере 5 вес.% от указанной исходной композиции и количество СаО в указанной окиси щелочно-земельного металла составляет по меньшей мере 6,96 вес.% от указанной исходной композиции;и от 0 до приблизительно 3 вес.% окисей щелочных металлов, причем указанное стеклянное волокно имеет ΔT, равную по меньшей мере 120°F.
- 2from about 60.5 to about 70.5 wt.% SiO2;от приблизительно 60,5 до приблизительно 70,5 вес.% SiO2;2. Стеклянное волокно по п. 1, дополнительно включающее менее 4 вес.% соединений, выбранных из группы, состоящей из ZnO, SO3, фтора, В2О3, TiO2 и Fe2O3.
- 3from about 10 to about 24.5 wt.% Al2O3;от приблизительно 10 до приблизительно 24,5 вес.% Al2O3;3. Стеклянное волокно по п. 1, в котором указанное стекло характеризуется температурой образования волокон менее чем приблизительно 2650°F.
- 4from about 20 to about 11.96 wt.% oxide of an alkaline earth metal oxide wherein said alkaline earth metal means the sum MgO, CaO, SrO and BaO, wherein the amount of MgO in said oxide of alkaline-earth metal is at least 5 wt .% of said initial composition and the amount of CaO in the oxide of said alkaline earth metal is at least 6.96% by weight of said initial composition.;and от приблизительно 11,96 до приблизительно 20 вес.% окиси щелочно-земельного металла, причем указанная окись щелочно-земельного металла обозначает сумму MgO, CaO, SrO и ВаО, где количество MgO в указанной окиси щелочно-земельного металла составляет по меньшей мере 5 вес.% от указанной исходной композиции и количество СаО в указанной окиси щелочно-земельного металла составляет по меньшей мере 6,96 вес.% от указанной исходной композиции;и 4. Стеклянное волокно по п. 3, где ΔT для стекла составляет по меньшей мере приблизительно 150°F.
- 5from 0 to about 3 wt.% alkali metal oxides, wherein said glass fiber has a ΔT, equal to at least 120 ° F. от 0 до приблизительно 3 вес.% окисей щелочных металлов, причем указанное стеклянное волокно имеет ΔT, равную по меньшей мере 120°F. 5. Стеклянное волокно по п. 1, которое имеет коэффициент теплового расширения (СТЕ) в пределах между приблизительно 2,28×10-6 дюйм/дюйм/°F и приблизительно 2,77×10-6 дюйм/дюйм/°F.
- 62. Glass fiber according to Claim. 1 further comprising less than 4 wt.% Of compounds selected from the group consisting of ZnO, SO3Fluorine, B2ABOUT3, TiO2 and Fe2O3. 2. Стеклянное волокно по п. 1, дополнительно включающее менее 4 вес.% соединений, выбранных из группы, состоящей из ZnO, SO3, фтора, В2О3, TiO2 и Fe2O3. 6. Стеклянное волокно по п. 1, которое имеет прочность более чем приблизительно 600 Кф/дюйм2.
- 73. Glass fiber according to claim. 1, wherein the temperature of the glass is characterized by the formation of fibers of less than about 2650 ° F. 3. Стеклянное волокно по п. 1, в котором указанное стекло характеризуется температурой образования волокон менее чем приблизительно 2650°F. 7. Стеклянное волокно по п. 1, которое имеет прочность более чем приблизительно 630 Кф/дюйм2.
- 84. Glass fiber according to claim. 3, where ΔT glass is at least about 150 ° F. 4. Стеклянное волокно по п. 3, где ΔT для стекла составляет по меньшей мере приблизительно 150°F. 8. Стеклянное волокно по п. 1, которое имеет прочность более чем приблизительно 695 Кф/дюйм2.
- 95. Glass fiber according to Claim. 1, which has a coefficient of thermal expansion (CTE) in the range between approximately 2,28 × 10-6 inch / inch / ° F and approximately 2.77 × 10-6 inch / inch / ° F. 5. Стеклянное волокно по п. 1, которое имеет коэффициент теплового расширения (СТЕ) в пределах между приблизительно 2,28×10-6 дюйм/дюйм/°F и приблизительно 2,77×10-6 дюйм/дюйм/°F. 9. Стеклянное волокно по п. 1, которое имеет модуль более чем приблизительно 12,0 Мф/дюйм2.
- 106. Glass fibers according to Claim. 1, which has a strength greater than about 600 Cf / inch2. 6. Стеклянное волокно по п. 1, которое имеет прочность более чем приблизительно 600 Кф/дюйм2. 10. Стеклянное волокно по п. 1, которое имеет модуль более чем приблизительно 12,2 Мф/дюйм2.
- 117. Glass fiber according to Claim. 1, which has a strength greater than about 630 Cf / inch2. 7. Стеклянное волокно по п. 1, которое имеет прочность более чем приблизительно 630 Кф/дюйм2. 11. Стеклянное волокно по п. 1, которое имеет модуль более чем приблизительно 12,6 Мф/дюйм2.
- 128. The glass fiber of claim. 1, which has a strength greater than about 695 Cf / inch2. 8. Стеклянное волокно по п. 1, которое имеет прочность более чем приблизительно 695 Кф/дюйм2. 12. Стеклянное волокно по п. 1, дополнительно включающее менее чем приблизительно 1 вес.% TiO2.
- 139. The glass fiber of claim. 1, which has a modulus greater than about 12.0 Mt / inch2. 9. Стеклянное волокно по п. 1, которое имеет модуль более чем приблизительно 12,0 Мф/дюйм2. 13. Изделие, армированное стеклянным волокном, содержащее:стеклянные волокна, содержащие: от приблизительно 60,5 до приблизительно 70,5 вес.% SiO2;от приблизительно 10 до приблизительно 24,5 вес.% Al2O3;от приблизительно 6,0 до приблизительно 20,0 вес.% окиси щелочно-земельного металла, причем указанная окись щелочно-земельного металла обозначает сумму MgO, CaO, SrO и ВаО, где по меньшей мере 5 вес.% указанной окиси щелочно-земельного металла составляет MgO;меньше чем приблизительно 1 вес.% TiO2;до 3 вес.% окисей щелочных металлов;и отверждаемый материал матрицы, причем указанные стеклянные волокна имеют ΔT, равную по меньшей мере 120°F.
- 1410. The glass fiber of claim. 1, which has a modulus greater than about 12.2 Mt / inch2. 10. Стеклянное волокно по п. 1, которое имеет модуль более чем приблизительно 12,2 Мф/дюйм2. 14. Изделие, армированное стеклянным волокном, по п. 13, представляющее собой лопасть для турбины ветряной установки.
- 1511. The glass fiber of claim. 1, which has a modulus greater than about 12.6 Mt / inch2. 11. Стеклянное волокно по п. 1, которое имеет модуль более чем приблизительно 12,6 Мф/дюйм2. 15. Изделие, армированное стеклянным волокном, по п. 13, в котором отверждаемый материал матрицы выбран из группы, состоящей из винилового сложного эфира, сложного полиэфира, эпоксидной смолы и их комбинаций или сополимеров.
- 1612. Glass fibers according to Claim. 1 further comprising less than about 1 wt.% TiO2. 12. Стеклянное волокно по п. 1, дополнительно включающее менее чем приблизительно 1 вес.% TiO2. 16. Изделие, армированное стеклянным волокном, по п. 13, в котором указанные стеклянные волокна дополнительно содержат менее 4 вес.% соединений, выбранных из группы, состоящей из ZnO, SO3, фтора, В2О3, TiO2 и Fe2O3.
- 1713. An article reinforced with glass fiber, comprising:13. Изделие, армированное стеклянным волокном, содержащее: 17. Изделие, армированное стеклянным волокном, по п. 13, в котором по меньшей мере 6,96 вес.% указанной окиси щелочно-земельного металла составляет СаО.
- 18glass fibers comprising:стеклянные волокна, содержащие: 18. Изделие, армированное стеклянным волокном, содержащее: стеклянные волокна, содержащие: от приблизительно 60,5 до приблизительно 70,5 вес.% SiO2;от приблизительно 10 до приблизительно 24,5 вес.% Al2O3;от приблизительно 11,96 до приблизительно 20,0 вес.% окиси щелочно-земельного металла, причем по меньшей мере 5 вес.% указанной окиси щелочно-земельного металла составляет MgO и по меньшей мере 6,96 вес.% указанной окиси щелочно-земельного металла составляет СаО;от 0 до приблизительно 3 вес.% окисей щелочных металлов;и менее 4 вес.% соединений, выбранных из группы, состоящей из ZnO, SO3, фтора, В2О3, TiO2 и Fe2O3;и отверждаемый материал матрицы, причем указанные стеклянные волокна имеют ΔT, равную по меньшей мере 120°F.
- 19from about 60.5 to about 70.5 wt.% SiO2;от приблизительно 60,5 до приблизительно 70,5 вес.% SiO2;19. Изделие, армированное стеклянным волокном, по п. 18, в котором указанное стекло характеризуется температурой образования волокон менее чем приблизительно 2650°F.
- 20from about 10 to about 24.5 wt.% Al2O3;от приблизительно 10 до приблизительно 24,5 вес.% Al2O3;20. Изделие, армированное стеклянным волокном, по п. 18, дополнительно включающее меньше чем приблизительно 1 вес.% TiO2.
- 21from about 6.0 to about 20.0 wt.% alkaline earth metal oxide, said oxide of an alkaline earth metal means the sum of MgO, CaO, SrO and BaO, wherein at least 5 wt.% of said oxide of alkaline-earth metal of MgO;от приблизительно 6,0 до приблизительно 20,0 вес.% окиси щелочно-земельного металла, причем указанная окись щелочно-земельного металла обозначает сумму MgO, CaO, SrO и ВаО, где по меньшей мере 5 вес.% указанной окиси щелочно-земельного металла составляет MgO;
- 22less than about 1 wt.% TiO2;меньше чем приблизительно 1 вес.% TiO2;
- 23to 3% by weight of alkali metal oxides.;and до 3 вес.% окисей щелочных металлов;и
- 24curable matrix material, отверждаемый материал матрицы,
- 25wherein said glass fibers have a ΔT, equal to at least 120 ° F. причем указанные стеклянные волокна имеют ΔT, равную по меньшей мере 120°F.
- 2614. An article reinforced with glass fiber, as claimed in claim. 13, which is a blade for a wind turbine installation. 14. Изделие, армированное стеклянным волокном, по п. 13, представляющее собой лопасть для турбины ветряной установки.
- 2715. An article reinforced with glass fiber, according to claim. 13 wherein the settable matrix material is selected from the group consisting of vinyl ester, polyester, epoxy resins, and combinations or copolymers. 15. Изделие, армированное стеклянным волокном, по п. 13, в котором отверждаемый материал матрицы выбран из группы, состоящей из винилового сложного эфира, сложного полиэфира, эпоксидной смолы и их комбинаций или сополимеров.
- 2816. An article reinforced with glass fiber, according to claim. 13 wherein said glass fibers further comprise at least 4 wt.% Of compounds selected from the group consisting of ZnO, SO3Fluorine, B2ABOUT3, TiO2 and Fe2O3. 16. Изделие, армированное стеклянным волокном, по п. 13, в котором указанные стеклянные волокна дополнительно содержат менее 4 вес.% соединений, выбранных из группы, состоящей из ZnO, SO3, фтора, В2О3, TiO2 и Fe2O3.
- 2917. An article reinforced with glass fiber, according to claim. 13 wherein at least 6.96 wt.% Of said oxide of alkaline-earth metal is CaO. 17. Изделие, армированное стеклянным волокном, по п. 13, в котором по меньшей мере 6,96 вес.% указанной окиси щелочно-земельного металла составляет СаО.
- 3018. An article reinforced with glass fiber, comprising:18. Изделие, армированное стеклянным волокном, содержащее:
- 31glass fibers comprising:стеклянные волокна, содержащие:
- 32from about 60.5 to about 70.5 wt.% SiO2;от приблизительно 60,5 до приблизительно 70,5 вес.% SiO2;
- 33from about 10 to about 24.5 wt.% Al2O3;от приблизительно 10 до приблизительно 24,5 вес.% Al2O3;
- 34from about 11.96 to about 20.0 wt.% alkaline earth metal oxide, and at least 5 wt.% of said oxide of alkaline-earth metal is MgO and at least 6.96 wt.% of said alkaline earth oxide metal is CaO;от приблизительно 11,96 до приблизительно 20,0 вес.% окиси щелочно-земельного металла, причем по меньшей мере 5 вес.% указанной окиси щелочно-земельного металла составляет MgO и по меньшей мере 6,96 вес.% указанной окиси щелочно-земельного металла составляет СаО;
- 35from 0 to about 3 wt% alkali metal oxides.;and от 0 до приблизительно 3 вес.% окисей щелочных металлов;и
- 36less than 4 wt.% of compounds selected from the group consisting of ZnO, SO3Fluorine, B2ABOUT3, TiO2 and Fe2O3;and менее 4 вес.% соединений, выбранных из группы, состоящей из ZnO, SO3, фтора, В2О3, TiO2 и Fe2O3;и
- 37curable matrix material, отверждаемый материал матрицы,
- 38wherein said glass fibers have a ΔT, equal to at least 120 ° F. причем указанные стеклянные волокна имеют ΔT, равную по меньшей мере 120°F.
- 3919. An article reinforced with glass fiber, according to claim. 18 wherein said glass fiber is characterized by the formation temperature of less than about 2650 ° F. 19. Изделие, армированное стеклянным волокном, по п. 18, в котором указанное стекло характеризуется температурой образования волокон менее чем приблизительно 2650°F.
- 4020. An article reinforced with glass fiber, according to claim. 18, additionally comprising less than about 1 wt.% TiO2. 20. Изделие, армированное стеклянным волокном, по п. 18, дополнительно включающее меньше чем приблизительно 1 вес.% TiO2.
Independent claims40
33 paragraphs in 1 section, as filed
TECHNICAL FIELD
This invention relates generally to a composition for production of continuous glass fibers for use in fields requiring high strength materials and high strength to the glass fibers and articles.
Background of the Invention.
The most common glass-based composition for the manufacture of continuous filament glass fiber is called "E-glass". The liquidus temperature of E-Glass is approximately 2100 ° F (1149 ° C) or lower. One advantage of E-Glass is that its liquidus temperature allows to obtain glass fiber at about 1900-2400 ° F (1038-1316 ° C). According to the classification by ASTM for a glass yarn, used for printed circuit boards and E-glass in the aerospace industry, the composition comprises 52-56 wt.% SiO<sub>2</sub>, 16-25 wt.% CaO, 12-16 wt.% Al<sub>2</sub>O<sub>3</sub>5-10 wt.% B<sub>2</sub>ABOUT<sub>3</sub>, 0-5 wt.% MgO, 0-2 wt.% Na<sub>2</sub>O and K<sub>2</sub>O, 0-0,8 wt.% TiO<sub>2</sub>, 0.05-0.4 wt.% Fe<sub>2</sub>O<sub>3</sub> and 0-1.0 wt.% fluorine.
The fibers not containing boron, sold under the trademark ADVANTEX (Owens Coming, Toledo, Ohio, USA). The fibers not containing boron, such as those described in U.S. Patent №5789329, can significantly reduce the operating temperature compared to E-glass containing boron. Not containing the boron glass fibers fall under the definition of E-glass fibers for use in public areas as determined by ASTM.
S-glass represents a family of glasses composed primarily of the oxides of magnesium, aluminum and silicon with a chemical composition that produces glass fibers with a higher mechanical strength than the fibers of E-glass. Composition for S-glass comprises about 65 wt.% SiO<sub>2</sub>, 25 wt.% Al<sub>2</sub>O<sub>3</sub> and 10 wt.% MgO. S-glass has a composition, which was initially developed for use in applications requiring high strength.
R-Glass is a family of glasses that are composed primarily of the oxides of silicon, aluminum, magnesium and calcium with a chemical composition that produces a fiber with a greater mechanical strength than the strength of E-glass fibers. R-Glass has a composition comprising about 58-60 wt.% SiO<sub>2</sub>About 23,5-25,5 wt.% Al<sub>2</sub>O<sub>3</sub>About 14-17 wt.% CaO and MgO, 0% B<sub>2</sub>ABOUT<sub>3</sub> and 0% F<sub>2</sub> and less than about 2 wt.% of various other components. R-Glass contains more alumina and silicon oxide than E-Glass and requires higher temperatures for melting and processing of the fibers during molding. Typically, melting and processing of R-glass, at least about 160 ° C higher than in the case of E-glass. This increase in processing temperatures require expensive plavilnika lined with platinum. Furthermore, the proximity of the liquidus temperature to the forming R-Glass requires fiberizing glass with a viscosity that is less than that of E-glass fibers which typically forms at the value of viscosity is 1000 poise or near that value. Formation of R-fibers in the glass viscosity of 1000 poise usually leads probably to glass devitrification, which causes a break of the process and reduces its performance.
In the following Tables IA-IE shows the composition of several glass compositions of conventional high strength.
<tables num="1"><table frame="all"><tgroup rowsep="1" colsep="1" cols="5"><colspec colname="c1" colwidth="27mm" /><colspec colname="c2" colwidth="32mm" /><colspec colname="c3" colwidth="44mm" /><colspec colname="c4" colwidth="35mm" /><colspec colname="c5" colwidth="37mm" /><tbody><row><entry namest="c1" nameend="c5" align="right" rowsep="1" colsep="0">Table IA</entry></row><row><entry align="center" rowsep="1" colsep="1">Component</entry><entry align="center" rowsep="1" colsep="1">Chinese glass with high strength</entry><entry align="center" rowsep="1" colsep="1">Russian continuous roving on the basis of magnesium aluminosilicate</entry><entry align="center" rowsep="1" colsep="1">NITTOBO "T" fiberglass "B"</entry><entry align="center" rowsep="1" colsep="0">NITTOBO "T" glass fiber (yarn) "C"</entry></row><row><entry align="center" rowsep="1" colsep="1">SiO<sub>2</sub></entry><entry align="center" rowsep="1" colsep="1">55.08</entry><entry align="center" rowsep="1" colsep="1">55.81</entry><entry align="center" rowsep="1" colsep="1">64.58</entry><entry align="center" rowsep="1" colsep="0">64.64</entry></row><row><entry align="center" rowsep="1" colsep="1">CaO</entry><entry align="center" rowsep="1" colsep="1">0.33</entry><entry align="center" rowsep="1" colsep="1">0.38</entry><entry align="center" rowsep="1" colsep="1">0.44</entry><entry align="center" rowsep="1" colsep="0">0.40</entry></row><row><entry align="center" rowsep="1" colsep="1">Al<sub>2</sub>O<sub>3</sub></entry><entry align="center" rowsep="1" colsep="1">25,22</entry><entry align="center" rowsep="1" colsep="1">23.78</entry><entry align="center" rowsep="1" colsep="1">24.44</entry><entry align="center" rowsep="1" colsep="0">24.57</entry></row><row><entry align="center" rowsep="1" colsep="1">B<sub>2</sub>O<sub>3</sub></entry><entry align="center" rowsep="1" colsep="1">1.85</entry><entry align="center" rowsep="1" colsep="1" /><entry align="center" rowsep="1" colsep="1">0.03</entry><entry align="center" rowsep="1" colsep="0">0.03</entry></row><row><entry align="center" rowsep="1" colsep="1">MgO</entry><entry align="center" rowsep="1" colsep="1">15.96</entry><entry align="center" rowsep="1" colsep="1">15,08</entry><entry align="center" rowsep="1" colsep="1">9.95</entry><entry align="center" rowsep="1" colsep="0">9.92</entry></row><row><entry align="center" rowsep="1" colsep="1">Na<sub>2</sub>O</entry><entry align="center" rowsep="1" colsep="1">0.12</entry><entry align="center" rowsep="1" colsep="1">0,063</entry><entry align="center" rowsep="1" colsep="1">0.08</entry><entry align="center" rowsep="1" colsep="0">0.09</entry></row><row><entry align="center" rowsep="1" colsep="1">Fluorine</entry><entry align="center" rowsep="1" colsep="1">0.03</entry><entry align="center" rowsep="1" colsep="1" /><entry align="center" rowsep="1" colsep="1">0,034</entry><entry align="center" rowsep="1" colsep="0">0,037</entry></row><row><entry align="center" rowsep="1" colsep="1">TiO<sub>2</sub></entry><entry align="center" rowsep="1" colsep="1">0,023</entry><entry align="center" rowsep="1" colsep="1">2.33</entry><entry align="center" rowsep="1" colsep="1">0,019</entry><entry align="center" rowsep="1" colsep="0">0,018</entry></row><row><entry align="center" rowsep="1" colsep="1">Fe<sub>2</sub>O<sub>3</sub></entry><entry align="center" rowsep="1" colsep="1">1.1</entry><entry align="center" rowsep="1" colsep="1">0.388</entry><entry align="center" rowsep="1" colsep="1">0.187</entry><entry align="center" rowsep="1" colsep="0">0,180</entry></row><row><entry align="center" rowsep="1" colsep="1">K<sub>2</sub>O</entry><entry align="center" rowsep="1" colsep="1">0,039</entry><entry align="center" rowsep="1" colsep="1">0.56</entry><entry align="center" rowsep="1" colsep="1">0,007</entry><entry align="center" rowsep="1" colsep="0">0,010</entry></row><row><entry align="center" rowsep="1" colsep="1">ZrO<sub>2</sub></entry><entry align="center" rowsep="1" colsep="1">0,007</entry><entry align="center" rowsep="1" colsep="1">0.15</entry><entry align="center" rowsep="1" colsep="1" /><entry align="center" rowsep="1" colsep="0" /></row><row><entry align="center" rowsep="1" colsep="1">Cr<sub>2</sub>O<sub>3</sub></entry><entry align="center" rowsep="1" colsep="1" /><entry align="center" rowsep="1" colsep="1">0,011</entry><entry align="center" rowsep="1" colsep="1">0,003</entry><entry align="center" rowsep="1" colsep="0">0,003</entry></row><row><entry align="center" rowsep="1" colsep="1">Li<sub>2</sub>O</entry><entry align="center" rowsep="1" colsep="1" /><entry align="center" rowsep="1" colsep="1">1.63</entry><entry align="center" rowsep="1" colsep="1" /><entry align="center" rowsep="1" colsep="0" /></row><row><entry align="center" rowsep="0" colsep="1">CeO<sub>2</sub></entry><entry align="center" rowsep="0" colsep="1" /><entry align="center" rowsep="0" colsep="1" /><entry align="center" rowsep="0" colsep="1" /><entry align="center" rowsep="0" colsep="0" /></row></tbody></tgroup></table></tables>
<tables num="1"><table frame="all"><tgroup rowsep="1" colsep="1" cols="6"><colspec colname="c1" colwidth="25mm" /><colspec colname="c2" colwidth="22mm" /><colspec colname="c3" colwidth="25mm" /><colspec colname="c4" colwidth="27mm" /><colspec colname="c5" colwidth="33mm" /><colspec colname="c6" colwidth="43mm" /><tbody><row><entry namest="c1" nameend="c6" align="right" rowsep="1" colsep="0">Table I-B</entry></row><row><entry align="center" rowsep="1" colsep="1">Component</entry><entry align="center" rowsep="1" colsep="1">Yarn Nitto Boseki A and P</entry><entry align="center" rowsep="1" colsep="1">Yarn Nitto Boseki NT 6030</entry><entry align="center" rowsep="1" colsep="1">Glass Nitto Boseki RST-220PA-535CS</entry><entry align="center" rowsep="1" colsep="1">Reinforcing glass. fiber Vetrotex Saint Gobain SR CG 250 P109</entry><entry align="center" rowsep="1" colsep="0">High strength glass, "Glass fiber" Polotsk</entry></row><row><entry align="center" rowsep="1" colsep="1">SiO<sub>2</sub></entry><entry align="center" rowsep="1" colsep="1">65.51</entry><entry align="center" rowsep="1" colsep="1">64.60</entry><entry align="center" rowsep="1" colsep="1">64,20</entry><entry align="center" rowsep="1" colsep="1">63.90</entry><entry align="center" rowsep="1" colsep="0">58.64</entry></row><row><entry align="center" rowsep="1" colsep="1">CaO</entry><entry align="center" rowsep="1" colsep="1">0.44</entry><entry align="center" rowsep="1" colsep="1">0.58</entry><entry align="center" rowsep="1" colsep="1">0.63</entry><entry align="center" rowsep="1" colsep="1">0.26</entry><entry align="center" rowsep="1" colsep="0">0.61</entry></row><row><entry align="center" rowsep="1" colsep="1">Al<sub>2</sub>O<sub>3</sub></entry><entry align="center" rowsep="1" colsep="1">24,06</entry><entry align="center" rowsep="1" colsep="1">24,60</entry><entry align="center" rowsep="1" colsep="1">25,10</entry><entry align="center" rowsep="1" colsep="1">24.40</entry><entry align="center" rowsep="1" colsep="0">25,41</entry></row><row><entry align="center" rowsep="1" colsep="1">AT<sub>2</sub>ABOUT<sub>3</sub></entry><entry align="center" rowsep="1" colsep="1" /><entry align="center" rowsep="1" colsep="1" /><entry align="center" rowsep="1" colsep="1" /><entry align="center" rowsep="1" colsep="1" /><entry align="center" rowsep="1" colsep="0">0.04</entry></row><row><entry align="center" rowsep="1" colsep="1">MgO</entry><entry align="center" rowsep="1" colsep="1">9.73</entry><entry align="center" rowsep="1" colsep="1">9.90</entry><entry align="center" rowsep="1" colsep="1">9.90</entry><entry align="center" rowsep="1" colsep="1">10,00</entry><entry align="center" rowsep="1" colsep="0">14.18</entry></row><row><entry align="center" rowsep="1" colsep="1">Na<sub>2</sub>O</entry><entry align="center" rowsep="1" colsep="1">0.04</entry><entry align="center" rowsep="1" colsep="1">0.060</entry><entry align="center" rowsep="1" colsep="1">0,020</entry><entry align="center" rowsep="1" colsep="1">0,039</entry><entry align="center" rowsep="1" colsep="0">0.05</entry></row><row><entry align="center" rowsep="1" colsep="1">fluorine</entry><entry align="center" rowsep="1" colsep="1">0.07</entry><entry align="center" rowsep="1" colsep="1" /><entry align="center" rowsep="1" colsep="1" /><entry align="center" rowsep="1" colsep="1" /><entry align="center" rowsep="1" colsep="0">0.02</entry></row><row><entry align="center" rowsep="1" colsep="1">TiO<sub>2</sub></entry><entry align="center" rowsep="1" colsep="1">0,016</entry><entry align="center" rowsep="1" colsep="1">0,000</entry><entry align="center" rowsep="1" colsep="1">0,000</entry><entry align="center" rowsep="1" colsep="1">0.210</entry><entry align="center" rowsep="1" colsep="0">0.624</entry></row><row><entry align="center" rowsep="1" colsep="1">Fe<sub>2</sub>O<sub>3</sub></entry><entry align="center" rowsep="1" colsep="1">0.067</entry><entry align="center" rowsep="1" colsep="1">0,079</entry><entry align="center" rowsep="1" colsep="1">0.083</entry><entry align="center" rowsep="1" colsep="1">0.520</entry><entry align="center" rowsep="1" colsep="0">0.253</entry></row><row><entry align="center" rowsep="1" colsep="1">K<sub>2</sub>O</entry><entry align="center" rowsep="1" colsep="1">0,020</entry><entry align="center" rowsep="1" colsep="1">0,020</entry><entry align="center" rowsep="1" colsep="1">0,020</entry><entry align="center" rowsep="1" colsep="1">0.540</entry><entry align="center" rowsep="1" colsep="0">0.35</entry></row><row><entry align="center" rowsep="1" colsep="1">ZrO<sub>2</sub></entry><entry align="center" rowsep="1" colsep="1">0,079</entry><entry align="center" rowsep="1" colsep="1" /><entry align="center" rowsep="1" colsep="1" /><entry align="center" rowsep="1" colsep="1" /><entry align="center" rowsep="1" colsep="0" /></row><row><entry align="center" rowsep="1" colsep="1">CrO<sub>3</sub></entry><entry align="center" rowsep="1" colsep="1">0.0010</entry><entry align="center" rowsep="1" colsep="1" /><entry align="center" rowsep="1" colsep="1" /><entry align="center" rowsep="1" colsep="1">0,001</entry><entry align="center" rowsep="1" colsep="0">0,023</entry></row><row><entry align="center" rowsep="1" colsep="1">Li<sub>2</sub>O</entry><entry align="center" rowsep="1" colsep="1" /><entry align="center" rowsep="1" colsep="1" /><entry align="center" rowsep="1" colsep="1" /><entry align="center" rowsep="1" colsep="1" /><entry align="center" rowsep="1" colsep="0" /></row><row><entry align="center" rowsep="0" colsep="1">CeO<sub>2</sub></entry><entry align="center" rowsep="0" colsep="1" /><entry align="center" rowsep="0" colsep="1" /><entry align="center" rowsep="0" colsep="1" /><entry align="center" rowsep="0" colsep="1" /><entry align="center" rowsep="0" colsep="0" /></row></tbody></tgroup></table></tables>
<tables num="1"><table frame="all"><tgroup rowsep="1" colsep="1" cols="6"><colspec colname="c1" colwidth="25mm" /><colspec colname="c2" colwidth="35mm" /><colspec colname="c3" colwidth="35mm" /><colspec colname="c4" colwidth="33mm" /><colspec colname="c5" colwidth="17mm" /><colspec colname="c6" colwidth="29mm" /><tbody><row><entry namest="c1" nameend="c6" align="right" rowsep="1" colsep="0">Table I-C</entry></row><row><entry align="center" rowsep="1" colsep="1">Component</entry><entry align="center" rowsep="1" colsep="1">Chinese high-strength yarn (8 microns)</entry><entry align="center" rowsep="1" colsep="1">Chinese high-strength glass fiber rovings</entry><entry align="center" rowsep="1" colsep="1">Steklorovinga Zentron S-2</entry><entry align="center" rowsep="1" colsep="1">Glass SOLAIS</entry><entry align="center" rowsep="1" colsep="0">R-glass strand of glass</entry></row><row><entry align="center" rowsep="1" colsep="1">SiO<sub>2</sub></entry><entry align="center" rowsep="1" colsep="1">55.22</entry><entry align="center" rowsep="1" colsep="1">55.49</entry><entry align="center" rowsep="1" colsep="1">64.74</entry><entry align="center" rowsep="1" colsep="1">64.81</entry><entry align="center" rowsep="1" colsep="0">58.46</entry></row><row><entry align="center" rowsep="1" colsep="1">CaO</entry><entry align="center" rowsep="1" colsep="1">0.73</entry><entry align="center" rowsep="1" colsep="1">0.29</entry><entry align="center" rowsep="1" colsep="1">0.14</entry><entry align="center" rowsep="1" colsep="1">0.55</entry><entry align="center" rowsep="1" colsep="0">9.39</entry></row><row><entry align="center" rowsep="1" colsep="1">Al<sub>2</sub>O<sub>3</sub></entry><entry align="center" rowsep="1" colsep="1">24.42</entry><entry align="center" rowsep="1" colsep="1">24.88</entry><entry align="center" rowsep="1" colsep="1">24.70</entry><entry align="center" rowsep="1" colsep="1">24,51</entry><entry align="center" rowsep="1" colsep="0">24.55</entry></row><row><entry align="center" rowsep="1" colsep="1">B<sub>2</sub>O<sub>3</sub></entry><entry align="center" rowsep="1" colsep="1">3.46</entry><entry align="center" rowsep="1" colsep="1">3.52</entry><entry align="center" rowsep="1" colsep="1" /><entry align="center" rowsep="1" colsep="1">0.02</entry><entry align="center" rowsep="1" colsep="0">0.04</entry></row><row><entry align="center" rowsep="1" colsep="1">MgO</entry><entry align="center" rowsep="1" colsep="1">12.46</entry><entry align="center" rowsep="1" colsep="1">12.28</entry><entry align="center" rowsep="1" colsep="1">10.24</entry><entry align="center" rowsep="1" colsep="1">9.35</entry><entry align="center" rowsep="1" colsep="0">5.91</entry></row><row><entry align="center" rowsep="1" colsep="1">Na<sub>2</sub>O</entry><entry align="center" rowsep="1" colsep="1">0.104</entry><entry align="center" rowsep="1" colsep="1">0.06</entry><entry align="center" rowsep="1" colsep="1">0.17</entry><entry align="center" rowsep="1" colsep="1">0.16</entry><entry align="center" rowsep="1" colsep="0">0,079</entry></row><row><entry align="center" rowsep="1" colsep="1">fluorine</entry><entry align="center" rowsep="1" colsep="1">0.07</entry><entry align="center" rowsep="1" colsep="1" /><entry align="center" rowsep="1" colsep="1" /><entry align="center" rowsep="1" colsep="1">0.02</entry><entry align="center" rowsep="1" colsep="0">0,054</entry></row><row><entry align="center" rowsep="1" colsep="1">TiO<sub>2</sub></entry><entry align="center" rowsep="1" colsep="1">0.32</entry><entry align="center" rowsep="1" colsep="1">0.36</entry><entry align="center" rowsep="1" colsep="1">0,015</entry><entry align="center" rowsep="1" colsep="1">0.04</entry><entry align="center" rowsep="1" colsep="0">0.196</entry></row><row><entry align="center" rowsep="1" colsep="1">Fe<sub>2</sub>O<sub>3</sub></entry><entry align="center" rowsep="1" colsep="1">0.980</entry><entry align="center" rowsep="1" colsep="1">0.930</entry><entry align="center" rowsep="1" colsep="1">0,045</entry><entry align="center" rowsep="1" colsep="1">0.238</entry><entry align="center" rowsep="1" colsep="0">0.400</entry></row><row><entry align="center" rowsep="1" colsep="1">K<sub>2</sub>O</entry><entry align="center" rowsep="1" colsep="1">0.240</entry><entry align="center" rowsep="1" colsep="1">0,150</entry><entry align="center" rowsep="1" colsep="1">0,005</entry><entry align="center" rowsep="1" colsep="1">0.03</entry><entry align="center" rowsep="1" colsep="0">0.67</entry></row><row><entry align="center" rowsep="1" colsep="1">ZrO<sub>2</sub></entry><entry align="center" rowsep="1" colsep="1" /><entry align="center" rowsep="1" colsep="1" /><entry align="center" rowsep="1" colsep="1" /><entry align="center" rowsep="1" colsep="1" /><entry align="center" rowsep="1" colsep="0" /></row><row><entry align="center" rowsep="1" colsep="1">Cr<sub>2</sub>O<sub>3</sub></entry><entry align="center" rowsep="1" colsep="1">0.0050</entry><entry align="center" rowsep="1" colsep="1" /><entry align="center" rowsep="1" colsep="1" /><entry align="center" rowsep="1" colsep="1">0,007</entry><entry align="center" rowsep="1" colsep="0">0,005</entry></row><row><entry align="center" rowsep="1" colsep="1">Li<sub>2</sub>O</entry><entry align="center" rowsep="1" colsep="1">0.59</entry><entry align="center" rowsep="1" colsep="1">0.63</entry><entry align="center" rowsep="1" colsep="1" /><entry align="center" rowsep="1" colsep="1" /><entry align="center" rowsep="1" colsep="0" /></row><row><entry align="center" rowsep="0" colsep="1">CeO<sub>2</sub></entry><entry align="center" rowsep="0" colsep="1">1.23</entry><entry align="center" rowsep="0" colsep="1">1.25</entry><entry align="center" rowsep="0" colsep="1" /><entry align="center" rowsep="0" colsep="1" /><entry align="center" rowsep="0" colsep="0" /></row></tbody></tgroup></table></tables>
<tables num="1"><table frame="all"><tgroup rowsep="1" colsep="1" cols="6"><colspec colname="c1" colwidth="25mm" /><colspec colname="c2" colwidth="28mm" /><colspec colname="c3" colwidth="31mm" /><colspec colname="c4" colwidth="31mm" /><colspec colname="c5" colwidth="31mm" /><colspec colname="c6" colwidth="29mm" /><tbody><row><entry namest="c1" nameend="c6" align="right" rowsep="1" colsep="0">Table ID</entry></row><row><entry align="center" rowsep="1" colsep="1">Component</entry><entry align="center" rowsep="1" colsep="1">Fiberglass of the S-glass</entry><entry align="center" rowsep="1" colsep="1">Roving Culimeta</entry><entry align="center" rowsep="1" colsep="1">Yarn IVC Vertex B96 675</entry><entry align="center" rowsep="1" colsep="1">Steklorovinga IVG Vertex</entry><entry align="center" rowsep="1" colsep="0">Steklorovinga IVG Vertex is # 1</entry></row><row><entry align="center" rowsep="1" colsep="1">SiO<sub>2</sub></entry><entry align="center" rowsep="1" colsep="1">64.61</entry><entry align="center" rowsep="1" colsep="1">59.37</entry><entry align="center" rowsep="1" colsep="1">58.34</entry><entry align="center" rowsep="1" colsep="1">58.58</entry><entry align="center" rowsep="1" colsep="0">58.12</entry></row><row><entry align="center" rowsep="1" colsep="1">CaO</entry><entry align="center" rowsep="1" colsep="1">0.17</entry><entry align="center" rowsep="1" colsep="1">0.27</entry><entry align="center" rowsep="1" colsep="1">0.31</entry><entry align="center" rowsep="1" colsep="1">0.30</entry><entry align="center" rowsep="1" colsep="0">0.31</entry></row><row><entry align="center" rowsep="1" colsep="1">Al<sub>2</sub>O<sub>3</sub></entry><entry align="center" rowsep="1" colsep="1">24.84</entry><entry align="center" rowsep="1" colsep="1">25.49</entry><entry align="center" rowsep="1" colsep="1">23,81</entry><entry align="center" rowsep="1" colsep="1">24.26</entry><entry align="center" rowsep="1" colsep="0">24,09</entry></row><row><entry align="center" rowsep="1" colsep="1">AT<sub>2</sub>ABOUT<sub>3</sub></entry><entry align="center" rowsep="1" colsep="1">0.04</entry><entry align="center" rowsep="1" colsep="1">0.05</entry><entry align="center" rowsep="1" colsep="1" /><entry align="center" rowsep="1" colsep="1" /><entry align="center" rowsep="1" colsep="0" /></row><row><entry align="center" rowsep="1" colsep="1">MgO</entry><entry align="center" rowsep="1" colsep="1">10,11</entry><entry align="center" rowsep="1" colsep="1">13.47</entry><entry align="center" rowsep="1" colsep="1">14.99</entry><entry align="center" rowsep="1" colsep="1">15.02</entry><entry align="center" rowsep="1" colsep="0">15.36</entry></row><row><entry align="center" rowsep="1" colsep="1">Na<sub>2</sub>O</entry><entry align="center" rowsep="1" colsep="1">0,118</entry><entry align="center" rowsep="1" colsep="1">0,024</entry><entry align="center" rowsep="1" colsep="1">0.05</entry><entry align="center" rowsep="1" colsep="1">0.02</entry><entry align="center" rowsep="1" colsep="0">0.03</entry></row><row><entry align="center" rowsep="1" colsep="1">fluorine</entry><entry align="center" rowsep="1" colsep="1">0.03</entry><entry align="center" rowsep="1" colsep="1" /><entry align="center" rowsep="1" colsep="1">0.04</entry><entry align="center" rowsep="1" colsep="1">0.04</entry><entry align="center" rowsep="1" colsep="0">0.04</entry></row><row><entry align="center" rowsep="1" colsep="1">TiO<sub>2</sub></entry><entry align="center" rowsep="1" colsep="1">0,011</entry><entry align="center" rowsep="1" colsep="1">0.530</entry><entry align="center" rowsep="1" colsep="1">1,380</entry><entry align="center" rowsep="1" colsep="1">0.67</entry><entry align="center" rowsep="1" colsep="0">0.91</entry></row><row><entry align="center" rowsep="1" colsep="1">Fe<sub>2</sub>O<sub>3</sub></entry><entry align="center" rowsep="1" colsep="1">0,042</entry><entry align="center" rowsep="1" colsep="1">0.374</entry><entry align="center" rowsep="1" colsep="1">0.333</entry><entry align="center" rowsep="1" colsep="1">0.336</entry><entry align="center" rowsep="1" colsep="0">0.303</entry></row><row><entry align="center" rowsep="1" colsep="1">K<sub>2</sub>O</entry><entry align="center" rowsep="1" colsep="1" /><entry align="center" rowsep="1" colsep="1">0.48</entry><entry align="center" rowsep="1" colsep="1">0.42</entry><entry align="center" rowsep="1" colsep="1">0.28</entry><entry align="center" rowsep="1" colsep="0">0.29</entry></row><row><entry align="center" rowsep="1" colsep="1">ZrO<sub>2</sub></entry><entry align="center" rowsep="1" colsep="1" /><entry align="center" rowsep="1" colsep="1">0.152</entry><entry align="center" rowsep="1" colsep="1">0.129</entry><entry align="center" rowsep="1" colsep="1">0,165</entry><entry align="center" rowsep="1" colsep="0">0.157</entry></row><row><entry align="center" rowsep="1" colsep="1">Cr<sub>2</sub>O<sub>3</sub></entry><entry align="center" rowsep="1" colsep="1">0.0050</entry><entry align="center" rowsep="1" colsep="1">0.0120</entry><entry align="center" rowsep="1" colsep="1">0.0100</entry><entry align="center" rowsep="1" colsep="1">0.0120</entry><entry align="center" rowsep="1" colsep="0">0.0120</entry></row><row><entry align="center" rowsep="1" colsep="1">Li<sub>2</sub>O</entry><entry align="center" rowsep="1" colsep="1" /><entry align="center" rowsep="1" colsep="1" /><entry align="center" rowsep="1" colsep="1" /><entry align="center" rowsep="1" colsep="1" /><entry align="center" rowsep="1" colsep="0" /></row><row><entry align="center" rowsep="0" colsep="1">CeO<sub>2</sub></entry><entry align="center" rowsep="0" colsep="1" /><entry align="center" rowsep="0" colsep="1" /><entry align="center" rowsep="0" colsep="1" /><entry align="center" rowsep="0" colsep="1" /><entry align="center" rowsep="0" colsep="0" /></row></tbody></tgroup></table></tables>
<tables num="1"><table frame="all"><tgroup rowsep="1" colsep="1" cols="3"><colspec colname="c1" colwidth="29mm" /><colspec colname="c2" colwidth="81mm" /><colspec colname="c3" colwidth="64mm" /><tbody><row><entry namest="c1" nameend="c3" align="right" rowsep="1" colsep="0">Table I-E</entry></row><row><entry align="center" rowsep="1" colsep="1">Component</entry><entry align="center" rowsep="1" colsep="1">Steklorovinga IVG Vertex is # 2</entry><entry align="center" rowsep="1" colsep="0">The filaments of fiberglass RH CG 250 P109</entry></row><row><entry align="center" rowsep="1" colsep="1">SiO<sub>2</sub></entry><entry align="center" rowsep="1" colsep="1">58.69</entry><entry align="center" rowsep="1" colsep="0">58.54</entry></row><row><entry align="center" rowsep="1" colsep="1">CaO</entry><entry align="center" rowsep="1" colsep="1">0.29</entry><entry align="center" rowsep="1" colsep="0">9.35</entry></row><row><entry align="center" rowsep="1" colsep="1">Al<sub>2</sub>O<sub>3</sub></entry><entry align="center" rowsep="1" colsep="1">24.3</entry><entry align="center" rowsep="1" colsep="0">25.39</entry></row><row><entry align="center" rowsep="1" colsep="1">B<sub>2</sub>O<sub>3</sub></entry><entry align="center" rowsep="1" colsep="1" /><entry align="center" rowsep="1" colsep="0" /></row><row><entry align="center" rowsep="1" colsep="1">MgO</entry><entry align="center" rowsep="1" colsep="1">15.06</entry><entry align="center" rowsep="1" colsep="0">6.15</entry></row><row><entry align="center" rowsep="1" colsep="1">Na<sub>2</sub>O</entry><entry align="center" rowsep="1" colsep="1">0.03</entry><entry align="center" rowsep="1" colsep="0">0.10</entry></row><row><entry align="center" rowsep="1" colsep="1">fluorine</entry><entry align="center" rowsep="1" colsep="1">0.04</entry><entry align="center" rowsep="1" colsep="0">0.16</entry></row><row><entry align="center" rowsep="1" colsep="1">TiO<sub>2</sub></entry><entry align="center" rowsep="1" colsep="1">0.64</entry><entry align="center" rowsep="1" colsep="0">0,008</entry></row><row><entry align="center" rowsep="1" colsep="1">Fe<sub>2</sub>O<sub>3</sub></entry><entry align="center" rowsep="1" colsep="1">0.331</entry><entry align="center" rowsep="1" colsep="0">0.069</entry></row><row><entry align="center" rowsep="1" colsep="1">K<sub>2</sub>O</entry><entry align="center" rowsep="1" colsep="1">0.36</entry><entry align="center" rowsep="1" colsep="0">0.14</entry></row><row><entry align="center" rowsep="1" colsep="1">ZrO<sub>2</sub></entry><entry align="center" rowsep="1" colsep="1">0.187</entry><entry align="center" rowsep="1" colsep="0">0,006</entry></row><row><entry align="center" rowsep="1" colsep="1">Cr<sub>2</sub>O<sub>3</sub></entry><entry align="center" rowsep="1" colsep="1">0.0130</entry><entry align="center" rowsep="1" colsep="0" /></row><row><entry align="center" rowsep="1" colsep="1">Li<sub>2</sub>O</entry><entry align="center" rowsep="1" colsep="1" /><entry align="center" rowsep="1" colsep="0" /></row><row><entry align="center" rowsep="0" colsep="1">CeO<sub>2</sub></entry><entry align="center" rowsep="0" colsep="1" /><entry align="center" rowsep="0" colsep="0" /></row></tbody></tgroup></table></tables>
R-glass and S-glass was prepared by melting the components in the compositions plavilnike, lined with platinum. The cost of producing fibers from R-glass and S-glass is much higher than in the case of E-glass fibers, because the cost of obtaining such fibers plavilnikah. Therefore, a need exists for glass compositions suitable for producing glass fibers with a high rate by the method of direct melting furnace lined with a refractory lining, and fibers prepared from such compositions.
Summary of the Invention.
The invention relates in part to a glass composition for the production of continuous glass fibers that are suitable for use in areas where high strength is required. The composition according to the present invention can be converted with small costs in glass fiber using inexpensive direct melting in refractory-lined furnaces due to relatively low fiberizing temperature of the glass fibers. Obtained from this composition, the glass fibers have mechanical strength characteristics that are peculiar to a more expensive glass fibers, for example, S-glass. The composition of the invention comprises about 60,5-70,5 wt.% SiO<sub>2</sub>About 10,0-24,5 wt.% Al<sub>2</sub>O<sub>3</sub>About 6,0-20,0 wt.% RO, wherein RO denotes the sum of MgO, CaO, SrO and BaO, and about 0,0-3,0 wt.% Alkali metal oxides. According to a preferred embodiment the glass composition consists of about 61-68 wt.% Si02, about 15-19 wt.% Al<sub>2</sub>O<sub>3</sub>About 15-20 wt.% RO, wherein RO denotes the sum of MgO, CaO, SrO and BaO, and about 0-3 wt.% Alkali metal oxides. Preferably, the composition contains no more than about 4 wt.% Of oxides or halogens selected from the group consisting of ZnO, SO<sub>3</sub>Fluorine, B<sub>2</sub>ABOUT<sub>3</sub>, TiO<sub>2</sub>, ZrO<sub>2</sub> and Fe<sub>2</sub>O<sub>3</sub>. Desirable properties of the glass compositions of this invention include fiber forming temperature of less than about 2650 ° F and a liquidus temperature that is preferably below the temperature of formation of the fibers of at least about 8 RT, more preferably at least about 120 ° F, and most preferably at least about 150T.
Detailed description of the invention.
Fiber-forming properties of the glass composition of the present invention include fiber forming temperature, liquidus, and delta-T. Fiber formation temperature is defined as the temperature that corresponds to a viscosity of about 1000 poises. As discussed in more detail below, low temperature forming fibers provides for a cost reduction of fibers longer allows the glass melt located in the die, resulting in improved performance, allows melting glass melter in a refractory lining and to reduce the amount of energy used. For example, at a lower temperature fiberizing die is operated at a lower temperature and formation of a "trough" are not as fast. Deflection (sag) is a phenomenon that occurs in the die at an elevated temperature for a prolonged time. With a decrease in the rate of fiberization die deflection temperature can be decreased and the residence time can be increased. In addition, the lower fiberizing temperature leads to a higher productivity, as more glass can be melted in a given period at a given energy input. As a result, production costs are reduced. In addition, the lower temperature also enables fiberizing the glass composition of the invention with a melt plavilnike refractory lining, and since its melting point and its temperature fiberization below the upper limit Melting many commercially available refractories.
Liquidus is defined as the highest temperature at which equilibrium exists between liquid glass and its primary crystalline phase. At all temperatures above the liquidus glass contains crystals in their primary phase. may form crystals at temperatures below the liquidus,
Another feature is the fiber-delta T (delta T), which is defined as the difference between the temperature of the fiberizing and liquidus. The larger delta T value suggests a greater degree of flexibility during the formation of the glass fibers and helps to inhibit devitrification of the glass (i.e. the formation of crystals within the melt) during melting and fiber. Increased delta T also reduces the cost of production of glass by increasing the residence time of the molten glass in the die and by increasing the technological "windows" for the formation of fibers.
Various types of glass of the present invention are suitable for melting in traditional industrial plavilnikah glass with an internal refractory lining, which is widely used in the production of reinforcing glass fibers. Initial downloadable components typically include SiO<sub>2</sub> (Ground silica sand) and Al<sub>2</sub>O<sub>3</sub> (Calcined alumina), as well as chain modifiers from source materials such as MgCO<sub>3</sub> (Magnesite), CaCO<sub>3</sub> (Limestone), SrCO<sub>3</sub> (Strontianite), BaCO<sub>3</sub> (Wieser), ZrSiO<sub>4</sub> (Zircon) and Na<sub>2</sub>CO<sub>3</sub> (Sodium).
Initial loading of glass preferably comprises from about 60.5 to about 70.5 wt.% SiO<sub>2</sub>From about 10.0 to about 24.5 wt.% Al<sub>2</sub>O<sub>3</sub>From about 6.0 to about 20.0 wt.% RO, where RO equals the sum of MgO, CaO and SrO, and about 0.0 to about 3.0 wt.% Alkali metal oxides. Fiber formed in accordance with the present invention will typically include small amounts of ZnO, SO<sub>3</sub>Fluorine, B<sub>2</sub>ABOUT<sub>3</sub>, TiO<sub>2</sub> and Fe<sub>2</sub>O<sub>3</sub>Preferably in an amount less than 4 wt.%. In addition, the fiber formed in accordance with the present invention will preferably have a fiberizing temperature of less than about 2650 ° F, and? T, of at least about 80 ° F, preferably, ΔT, of at least about 120 ° F, and most preferably,? T, of at least about 150 ° F, and a coefficient of thermal expansion (CTE) of approximately 2,28 × 10<sup>-6</sup> inch / inch / ° F to about 2,77 × 10<sup>-6</sup> inch / inch / ° F. In addition, the glass of the present invention preferably has a strength in excess of 600 Kf / inch<sup>2</sup>Preferably more than 630 strength Cf / inch<sup>2</sup> and most preferably greater than about 695 Cf / inch<sup>2</sup>. Furthermore, to have a desirable fiber modulus greater than about 12.0 Mt / inch<sup>2</sup>Preferably greater than 12.18 Mt / inch<sup>2</sup> and most preferably greater than about 12.6 Mt / inch<sup>2</sup>. It will be appreciated that certain details of the structure are not described, as such details are standard and known to those skilled in the art.
The present invention also includes a composite material comprising glass fibers, as described above, in combination with curing of the matrix material. The composite material is particularly useful for applications where the desired high strength, rigidity and light weight. Such applications include aircraft, automobiles and wind power plants (such as windmill blades) as well as any other applications where light weight is desirable, rigidity and high strength. Suitable curable matrix material include thermoplastic and thermosetting resins. For example, the thermoset matrix materials include vinyl esters, polyesters, epoxy resins, and copolymers or combinations thereof. Typically windmill blades are made using any suitable method of manufacturing the composite, such as the introduction of the resin by means of vacuum or the use of pre-impregnated reinforcing inserts.
The present invention, being generally described, will further the understanding by reference to certain specific examples below, which are given for illustration purposes only and in no way are limiting, unless otherwise specified.
Examples.
The glasses in the examples listed in Tables IIA-IIC, were melted in platinum crucibles or in a continuous platinum melter with an inner lining in order to determine the mechanical and physical properties of the glass and fibers produced therefrom. The units of measurement of physical properties are: Viscosity (° F), the liquidus temperature (° F) and ΔT (° F). In some examples, the glass fiber was processed for durability were measured (Cf / inch<sup>2</sup>) Density (g / cm<sup>3</sup>), The module (Mt / inch<sup>2</sup>), Softening point (° F) and a coefficient of thermal expansion (CTE) (in / in / (° F)).
fiberizing temperature was measured using a rotating viscometer axial. Viscosity at fiberizing been defined as 1000 Poise. Liquidus was measured by placing a platinum container filled with glass in a thermal oven slant for 16 hours. The highest temperature at which crystals were was adopted as the liquidus temperature. The tensile modulus was measured using an ultrasonic method for the monofilament of glass. Tensile strength was measured on fresh, alkaline monofilament. CTE was measured using a dilatometer at a temperature of 25-600 ° C above. Softening point was measured using the fiber elongation method according to ASTM C338.
<tables num="1"><table frame="all"><tgroup rowsep="1" colsep="1" cols="7"><colspec colname="c1" colwidth="50mm" /><colspec colname="c2" colwidth="21mm" /><colspec colname="c3" colwidth="19mm" /><colspec colname="c4" colwidth="17mm" /><colspec colname="c5" colwidth="23mm" /><colspec colname="c6" colwidth="21mm" /><colspec colname="c7" colwidth="21mm" /><tbody><row><entry namest="c1" nameend="c7" align="right" rowsep="1" colsep="0">Table II-A</entry></row><row><entry align="center" rowsep="1" colsep="1">Glass</entry><entry align="center" rowsep="1" colsep="1">example 1</entry><entry align="center" rowsep="1" colsep="1">example 2</entry><entry align="center" rowsep="1" colsep="1">example 3</entry><entry align="center" rowsep="1" colsep="1">example 4</entry><entry align="center" rowsep="1" colsep="1">example 5</entry><entry align="center" rowsep="1" colsep="0">example 6</entry></row><row><entry align="center" rowsep="1" colsep="1">SiO<sub>2</sub></entry><entry align="center" rowsep="1" colsep="1">62.63</entry><entry align="center" rowsep="1" colsep="1">62.42</entry><entry align="center" rowsep="1" colsep="1">61.75</entry><entry align="center" rowsep="1" colsep="1">63.01</entry><entry align="center" rowsep="1" colsep="1">63.07</entry><entry align="center" rowsep="1" colsep="0">63.16</entry></row><row><entry align="center" rowsep="1" colsep="1">CaO</entry><entry align="center" rowsep="1" colsep="1">8.49</entry><entry align="center" rowsep="1" colsep="1">8.64</entry><entry align="center" rowsep="1" colsep="1">8.57</entry><entry align="center" rowsep="1" colsep="1">4.84</entry><entry align="center" rowsep="1" colsep="1">4.85</entry><entry align="center" rowsep="1" colsep="0">4.8</entry></row><row><entry align="center" rowsep="1" colsep="1">Al<sub>2</sub>O<sub>3</sub></entry><entry align="center" rowsep="1" colsep="1">18,50</entry><entry align="center" rowsep="1" colsep="1">18.54</entry><entry align="center" rowsep="1" colsep="1">18.82</entry><entry align="center" rowsep="1" colsep="1">19.99</entry><entry align="center" rowsep="1" colsep="1">20,03</entry><entry align="center" rowsep="1" colsep="0">19.76</entry></row><row><entry align="center" rowsep="1" colsep="1">MgO</entry><entry align="center" rowsep="1" colsep="1">9.47</entry><entry align="center" rowsep="1" colsep="1">9.64</entry><entry align="center" rowsep="1" colsep="1">9.65</entry><entry align="center" rowsep="1" colsep="1">11.26</entry><entry align="center" rowsep="1" colsep="1">11.28</entry><entry align="center" rowsep="1" colsep="0">11,33</entry></row><row><entry align="center" rowsep="1" colsep="1">Na<sub>2</sub>O</entry><entry align="center" rowsep="1" colsep="1">0.70</entry><entry align="center" rowsep="1" colsep="1">0.69</entry><entry align="center" rowsep="1" colsep="1" /><entry align="center" rowsep="1" colsep="1">0.70</entry><entry align="center" rowsep="1" colsep="1">0.70</entry><entry align="center" rowsep="1" colsep="0" /></row><row><entry align="center" rowsep="1" colsep="1">TiO<sub>2</sub></entry><entry align="center" rowsep="1" colsep="1">0.00</entry><entry align="center" rowsep="1" colsep="1">0.01</entry><entry align="center" rowsep="1" colsep="1">0.01</entry><entry align="center" rowsep="1" colsep="1">0.00</entry><entry align="center" rowsep="1" colsep="1">0.01</entry><entry align="center" rowsep="1" colsep="0">0.02</entry></row><row><entry align="center" rowsep="1" colsep="1">Fe<sub>2</sub>O<sub>3</sub></entry><entry align="center" rowsep="1" colsep="1">0.20</entry><entry align="center" rowsep="1" colsep="1">0.05</entry><entry align="center" rowsep="1" colsep="1">0,045</entry><entry align="center" rowsep="1" colsep="1">0.20</entry><entry align="center" rowsep="1" colsep="1">0.05</entry><entry align="center" rowsep="1" colsep="0">0,037</entry></row><row><entry align="center" rowsep="1" colsep="1">The measured viscosity (° F)</entry><entry align="center" rowsep="1" colsep="1">2491</entry><entry align="center" rowsep="1" colsep="1">but</entry><entry align="center" rowsep="1" colsep="1">but</entry><entry align="center" rowsep="1" colsep="1">2514</entry><entry align="center" rowsep="1" colsep="1">but</entry><entry align="center" rowsep="1" colsep="0">but</entry></row><row><entry align="center" rowsep="1" colsep="1">Measured Liquidus (° F)</entry><entry align="center" rowsep="1" colsep="1">2261</entry><entry align="center" rowsep="1" colsep="1">2247</entry><entry align="center" rowsep="1" colsep="1">but</entry><entry align="center" rowsep="1" colsep="1">2335</entry><entry align="center" rowsep="1" colsep="1">but</entry><entry align="center" rowsep="1" colsep="0">but</entry></row><row><entry align="center" rowsep="1" colsep="1">Measured DT (° F)</entry><entry align="center" rowsep="1" colsep="1">230</entry><entry align="center" rowsep="1" colsep="1">but</entry><entry align="center" rowsep="1" colsep="1">but</entry><entry align="center" rowsep="1" colsep="1">179</entry><entry align="center" rowsep="1" colsep="1">but</entry><entry align="center" rowsep="1" colsep="0">but</entry></row><row><entry align="center" rowsep="1" colsep="1">The measured strength (CF / inch<sup>2</sup>)</entry><entry align="center" rowsep="1" colsep="1">672</entry><entry align="center" rowsep="1" colsep="1">but</entry><entry align="center" rowsep="1" colsep="1">but</entry><entry align="center" rowsep="1" colsep="1">695</entry><entry align="center" rowsep="1" colsep="1">but</entry><entry align="center" rowsep="1" colsep="0">but</entry></row><row><entry align="center" rowsep="1" colsep="1">The measured density (g / cm<sup>3</sup>)</entry><entry align="center" rowsep="1" colsep="1">2,556</entry><entry align="center" rowsep="1" colsep="1">but</entry><entry align="center" rowsep="1" colsep="1">but</entry><entry align="center" rowsep="1" colsep="1">2,530</entry><entry align="center" rowsep="1" colsep="1">but</entry><entry align="center" rowsep="1" colsep="0">but</entry></row><row><entry align="center" rowsep="1" colsep="1">Measurement Module (Mt / inch<sup>2</sup>)</entry><entry align="center" rowsep="1" colsep="1">12.4</entry><entry align="center" rowsep="1" colsep="1">12.6</entry><entry align="center" rowsep="1" colsep="1">but</entry><entry align="center" rowsep="1" colsep="1">12.6</entry><entry align="center" rowsep="1" colsep="1">12.7</entry><entry align="center" rowsep="1" colsep="0">but</entry></row><row><entry align="center" rowsep="1" colsep="1">Softening point (° F)</entry><entry align="center" rowsep="1" colsep="1">but</entry><entry align="center" rowsep="1" colsep="1">but</entry><entry align="center" rowsep="1" colsep="1">but</entry><entry align="center" rowsep="1" colsep="1">1765</entry><entry align="center" rowsep="1" colsep="1">but</entry><entry align="center" rowsep="1" colsep="0">but</entry></row><row><entry align="center" rowsep="0" colsep="1">CTE (in / in / (° F)</entry><entry align="center" rowsep="0" colsep="1">but</entry><entry align="center" rowsep="0" colsep="1">but</entry><entry align="center" rowsep="0" colsep="1">but</entry><entry align="center" rowsep="0" colsep="1">2,28 × 10<sup>-6</sup></entry><entry align="center" rowsep="0" colsep="1">but</entry><entry align="center" rowsep="0" colsep="0">but</entry></row></tbody></tgroup></table></tables>
<tables num="1"><table frame="all"><tgroup rowsep="1" colsep="1" cols="7"><colspec colname="c1" colwidth="41mm" /><colspec colname="c2" colwidth="23mm" /><colspec colname="c3" colwidth="19mm" /><colspec colname="c4" colwidth="21mm" /><colspec colname="c5" colwidth="23mm" /><colspec colname="c6" colwidth="23mm" /><colspec colname="c7" colwidth="23mm" /><tbody><row><entry namest="c1" nameend="c7" align="right" rowsep="1" colsep="0">Table II-B</entry></row><row><entry align="center" rowsep="1" colsep="1">Glass</entry><entry align="center" rowsep="1" colsep="1">example 7</entry><entry align="center" rowsep="1" colsep="1">example 8</entry><entry align="center" rowsep="1" colsep="1">example 9</entry><entry align="center" rowsep="1" colsep="1">example 10</entry><entry align="center" rowsep="1" colsep="1">example 11</entry><entry align="center" rowsep="1" colsep="0">example 12</entry></row><row><entry align="center" rowsep="1" colsep="1">SiO<sub>2</sub></entry><entry align="center" rowsep="1" colsep="1">62.32</entry><entry align="center" rowsep="1" colsep="1">63.89</entry><entry align="center" rowsep="1" colsep="1">63.14</entry><entry align="center" rowsep="1" colsep="1">61.39</entry><entry align="center" rowsep="1" colsep="1">61.39</entry><entry align="center" rowsep="1" colsep="0">65,00</entry></row><row><entry align="center" rowsep="1" colsep="1">CaO</entry><entry align="center" rowsep="1" colsep="1">11.56</entry><entry align="center" rowsep="1" colsep="1">11.21</entry><entry align="center" rowsep="1" colsep="1">11.96</entry><entry align="center" rowsep="1" colsep="1">11.96</entry><entry align="center" rowsep="1" colsep="1">8.71</entry><entry align="center" rowsep="1" colsep="0">13,00</entry></row><row><entry align="center" rowsep="1" colsep="1">Al<sub>2</sub>O<sub>3</sub></entry><entry align="center" rowsep="1" colsep="1">17.25</entry><entry align="center" rowsep="1" colsep="1">16.39</entry><entry align="center" rowsep="1" colsep="1">16.39</entry><entry align="center" rowsep="1" colsep="1">18.14</entry><entry align="center" rowsep="1" colsep="1">18.89</entry><entry align="center" rowsep="1" colsep="0">15,00</entry></row><row><entry align="center" rowsep="1" colsep="1">MgO</entry><entry align="center" rowsep="1" colsep="1">7.98</entry><entry align="center" rowsep="1" colsep="1">6.62</entry><entry align="center" rowsep="1" colsep="1">6.62</entry><entry align="center" rowsep="1" colsep="1">6.62</entry><entry align="center" rowsep="1" colsep="1">9.62</entry><entry align="center" rowsep="1" colsep="0">5.00</entry></row><row><entry align="center" rowsep="1" colsep="1">Na<sub>2</sub>O</entry><entry align="center" rowsep="1" colsep="1">0.70</entry><entry align="center" rowsep="1" colsep="1">0.75</entry><entry align="center" rowsep="1" colsep="1">0.75</entry><entry align="center" rowsep="1" colsep="1">0.75</entry><entry align="center" rowsep="1" colsep="1">0.25</entry><entry align="center" rowsep="1" colsep="0">1.00</entry></row><row><entry align="center" rowsep="1" colsep="1">TiO<sub>2</sub></entry><entry align="center" rowsep="1" colsep="1">0.00</entry><entry align="center" rowsep="1" colsep="1">0.75</entry><entry align="center" rowsep="1" colsep="1">0.75</entry><entry align="center" rowsep="1" colsep="1">0.75</entry><entry align="center" rowsep="1" colsep="1">0.75</entry><entry align="center" rowsep="1" colsep="0">1.00</entry></row><row><entry align="center" rowsep="1" colsep="1">Fe<sub>2</sub>O<sub>3</sub></entry><entry align="center" rowsep="1" colsep="1">0.20</entry><entry align="center" rowsep="1" colsep="1">0.39</entry><entry align="center" rowsep="1" colsep="1">0.39</entry><entry align="center" rowsep="1" colsep="1">0.39</entry><entry align="center" rowsep="1" colsep="1">0.39</entry><entry align="center" rowsep="1" colsep="0" /></row><row><entry align="center" rowsep="1" colsep="1">The measured viscosity (° F)</entry><entry align="center" rowsep="1" colsep="1">2458</entry><entry align="center" rowsep="1" colsep="1">2493</entry><entry align="center" rowsep="1" colsep="1">2435</entry><entry align="center" rowsep="1" colsep="1">2431</entry><entry align="center" rowsep="1" colsep="1">2434</entry><entry align="center" rowsep="1" colsep="0">2509</entry></row><row><entry align="center" rowsep="1" colsep="1">Measured Liquidus (° F)</entry><entry align="center" rowsep="1" colsep="1">2301</entry><entry align="center" rowsep="1" colsep="1">2268</entry><entry align="center" rowsep="1" colsep="1">2294</entry><entry align="center" rowsep="1" colsep="1">2353</entry><entry align="center" rowsep="1" colsep="1">2261</entry><entry align="center" rowsep="1" colsep="0">2226</entry></row><row><entry align="center" rowsep="1" colsep="1">Measured DT (° F)</entry><entry align="center" rowsep="1" colsep="1">157</entry><entry align="center" rowsep="1" colsep="1">225</entry><entry align="center" rowsep="1" colsep="1">141</entry><entry align="center" rowsep="1" colsep="1">78</entry><entry align="center" rowsep="1" colsep="1">173</entry><entry align="center" rowsep="1" colsep="0">283</entry></row><row><entry align="center" rowsep="1" colsep="1">The measured strength (CF / inch<sup>2</sup>)</entry><entry align="center" rowsep="1" colsep="1">632</entry><entry align="center" rowsep="1" colsep="1">636</entry><entry align="center" rowsep="1" colsep="1">622</entry><entry align="center" rowsep="1" colsep="1">615</entry><entry align="center" rowsep="1" colsep="1">682</entry><entry align="center" rowsep="1" colsep="0">612</entry></row><row><entry align="center" rowsep="1" colsep="1">The measured density (g / cm<sup>3</sup>)</entry><entry align="center" rowsep="1" colsep="1">2,573</entry><entry align="center" rowsep="1" colsep="1">2,553</entry><entry align="center" rowsep="1" colsep="1">2,567</entry><entry align="center" rowsep="1" colsep="1">2,567</entry><entry align="center" rowsep="1" colsep="1">2,564</entry><entry align="center" rowsep="1" colsep="0">but</entry></row><row><entry align="center" rowsep="1" colsep="1">Measurement Module (Mt / inch<sup>2</sup>)</entry><entry align="center" rowsep="1" colsep="1">12.2</entry><entry align="center" rowsep="1" colsep="1">12.2</entry><entry align="center" rowsep="1" colsep="1">12.2</entry><entry align="center" rowsep="1" colsep="1">12.2</entry><entry align="center" rowsep="1" colsep="1">12.6</entry><entry align="center" rowsep="1" colsep="0">but</entry></row><row><entry align="center" rowsep="1" colsep="1">Softening point (° F)</entry><entry align="center" rowsep="1" colsep="1">1729</entry><entry align="center" rowsep="1" colsep="1">but</entry><entry align="center" rowsep="1" colsep="1">but</entry><entry align="center" rowsep="1" colsep="1">but</entry><entry align="center" rowsep="1" colsep="1">but</entry><entry align="center" rowsep="1" colsep="0">but</entry></row><row><entry align="center" rowsep="0" colsep="1">CTE (in / in / (° F)</entry><entry align="center" rowsep="0" colsep="1">2,77 × 10<sup>-6</sup></entry><entry align="center" rowsep="0" colsep="1">but</entry><entry align="center" rowsep="0" colsep="1">but</entry><entry align="center" rowsep="0" colsep="1">but</entry><entry align="center" rowsep="0" colsep="1">but</entry><entry align="center" rowsep="0" colsep="0">but</entry></row></tbody></tgroup></table></tables>
<tables num="1"><table frame="all"><tgroup rowsep="1" colsep="1" cols="7"><colspec colname="c1" colwidth="41mm" /><colspec colname="c2" colwidth="23mm" /><colspec colname="c3" colwidth="20mm" /><colspec colname="c4" colwidth="24mm" /><colspec colname="c5" colwidth="23mm" /><colspec colname="c6" colwidth="23mm" /><colspec colname="c7" colwidth="23mm" /><tbody><row><entry namest="c1" nameend="c7" align="right" rowsep="1" colsep="0">Table II-C</entry></row><row><entry align="center" rowsep="1" colsep="1">Glass</entry><entry align="center" rowsep="1" colsep="1">example 13</entry><entry align="center" rowsep="1" colsep="1">example 14</entry><entry align="center" rowsep="1" colsep="1">example 15</entry><entry align="center" rowsep="1" colsep="1">example 16</entry><entry align="center" rowsep="1" colsep="1">Prima p 17</entry><entry align="center" rowsep="1" colsep="0">example 18</entry></row><row><entry align="center" rowsep="1" colsep="1">SiO<sub>2</sub></entry><entry align="center" rowsep="1" colsep="1">63.89</entry><entry align="center" rowsep="1" colsep="1">65,00</entry><entry align="center" rowsep="1" colsep="1">64,00</entry><entry align="center" rowsep="1" colsep="1">63.89</entry><entry align="center" rowsep="1" colsep="1">65,00</entry><entry align="center" rowsep="1" colsep="0">65,00</entry></row><row><entry align="center" rowsep="1" colsep="1">CaO</entry><entry align="center" rowsep="1" colsep="1">6.96</entry><entry align="center" rowsep="1" colsep="1">14,00</entry><entry align="center" rowsep="1" colsep="1">4.00</entry><entry align="center" rowsep="1" colsep="1">8.96</entry><entry align="center" rowsep="1" colsep="1">14,00</entry><entry align="center" rowsep="1" colsep="0">12.50</entry></row><row><entry align="center" rowsep="1" colsep="1">Al<sub>2</sub>O<sub>3</sub></entry><entry align="center" rowsep="1" colsep="1">18.64</entry><entry align="center" rowsep="1" colsep="1">15,00</entry><entry align="center" rowsep="1" colsep="1">20,00</entry><entry align="center" rowsep="1" colsep="1">18.89</entry><entry align="center" rowsep="1" colsep="1">15,00</entry><entry align="center" rowsep="1" colsep="0">15,00</entry></row><row><entry align="center" rowsep="1" colsep="1">MgO</entry><entry align="center" rowsep="1" colsep="1">9.62</entry><entry align="center" rowsep="1" colsep="1">6.00</entry><entry align="center" rowsep="1" colsep="1">11,00</entry><entry align="center" rowsep="1" colsep="1">6.62</entry><entry align="center" rowsep="1" colsep="1">5.00</entry><entry align="center" rowsep="1" colsep="0">5.00</entry></row><row><entry align="center" rowsep="1" colsep="1">Na<sub>2</sub>O</entry><entry align="center" rowsep="1" colsep="1">0.25</entry><entry align="center" rowsep="1" colsep="1">0.00</entry><entry align="center" rowsep="1" colsep="1">1.00</entry><entry align="center" rowsep="1" colsep="1">0.75</entry><entry align="center" rowsep="1" colsep="1">0.00</entry><entry align="center" rowsep="1" colsep="0">1.00</entry></row><row><entry align="center" rowsep="1" colsep="1">TiO<sub>2</sub></entry><entry align="center" rowsep="1" colsep="1">0.25</entry><entry align="center" rowsep="1" colsep="1">0.00</entry><entry align="center" rowsep="1" colsep="1">0.00</entry><entry align="center" rowsep="1" colsep="1">0.75</entry><entry align="center" rowsep="1" colsep="1">1.00</entry><entry align="center" rowsep="1" colsep="0">1.00</entry></row><row><entry align="center" rowsep="1" colsep="1">Fe<sub>2</sub>O<sub>3</sub></entry><entry align="center" rowsep="1" colsep="1">0.39</entry><entry align="center" rowsep="1" colsep="1">0.00</entry><entry align="center" rowsep="1" colsep="1">0.00</entry><entry align="center" rowsep="1" colsep="1">0.14</entry><entry align="center" rowsep="1" colsep="1">0.00</entry><entry align="center" rowsep="1" colsep="0">0.50</entry></row><row><entry align="center" rowsep="1" colsep="1">The measured viscosity (° F)</entry><entry align="center" rowsep="1" colsep="1">2513</entry><entry align="center" rowsep="1" colsep="1">2508</entry><entry align="center" rowsep="1" colsep="1">2548</entry><entry align="center" rowsep="1" colsep="1">2565</entry><entry align="center" rowsep="1" colsep="1">2481</entry><entry align="center" rowsep="1" colsep="0">2523</entry></row><row><entry align="center" rowsep="1" colsep="1">Measured Liquidus (° F)</entry><entry align="center" rowsep="1" colsep="1">2337</entry><entry align="center" rowsep="1" colsep="1">2373</entry><entry align="center" rowsep="1" colsep="1">2401</entry><entry align="center" rowsep="1" colsep="1">2288</entry><entry align="center" rowsep="1" colsep="1">2403</entry><entry align="center" rowsep="1" colsep="0">2227</entry></row><row><entry align="center" rowsep="1" colsep="1">Measured DT (° F)</entry><entry align="center" rowsep="1" colsep="1">176</entry><entry align="center" rowsep="1" colsep="1">135</entry><entry align="center" rowsep="1" colsep="1">147</entry><entry align="center" rowsep="1" colsep="1">277</entry><entry align="center" rowsep="1" colsep="1">78</entry><entry align="center" rowsep="1" colsep="0">296</entry></row><row><entry align="center" rowsep="1" colsep="1">The measured strength (CF / inch<sup>2</sup>)</entry><entry align="center" rowsep="1" colsep="1">695</entry><entry align="center" rowsep="1" colsep="1">624</entry><entry align="center" rowsep="1" colsep="1">but</entry><entry align="center" rowsep="1" colsep="1">but</entry><entry align="center" rowsep="1" colsep="1">604</entry><entry align="center" rowsep="1" colsep="0">but</entry></row><row><entry align="center" rowsep="1" colsep="1">The measured density (g / cm<sup>3</sup>)</entry><entry align="center" rowsep="1" colsep="1">2,480</entry><entry align="center" rowsep="1" colsep="1">2,554</entry><entry align="center" rowsep="1" colsep="1">but</entry><entry align="center" rowsep="1" colsep="1">but</entry><entry align="center" rowsep="1" colsep="1">2,546</entry><entry align="center" rowsep="1" colsep="0">but</entry></row><row><entry align="center" rowsep="1" colsep="1">Measurement Module (Mt / inch<sup>2</sup>)</entry><entry align="center" rowsep="1" colsep="1">12.3</entry><entry align="center" rowsep="1" colsep="1">12.0</entry><entry align="center" rowsep="1" colsep="1">but</entry><entry align="center" rowsep="1" colsep="1">but</entry><entry align="center" rowsep="1" colsep="1">11.9</entry><entry align="center" rowsep="1" colsep="0">but</entry></row><row><entry align="center" rowsep="1" colsep="1">Softening point (° F)</entry><entry align="center" rowsep="1" colsep="1">but</entry><entry align="center" rowsep="1" colsep="1">but</entry><entry align="center" rowsep="1" colsep="1">but</entry><entry align="center" rowsep="1" colsep="1">but</entry><entry align="center" rowsep="1" colsep="1">but</entry><entry align="center" rowsep="1" colsep="0">but</entry></row><row><entry align="center" rowsep="0" colsep="1">CTE (in / in / (° F)</entry><entry align="center" rowsep="0" colsep="1">but</entry><entry align="center" rowsep="0" colsep="1">but</entry><entry align="center" rowsep="0" colsep="1">but</entry><entry align="center" rowsep="0" colsep="1">but</entry><entry align="center" rowsep="0" colsep="1">but</entry><entry align="center" rowsep="0" colsep="0">but</entry></row></tbody></tgroup></table></tables>
As is customary in the art, the above examples of compositions of the invention do not always indicate 100% of the listed components due to statistical conditions (such as the rounding and averaging) and the fact is that some compositions may include impurities that are not listed. Of course, the actual amounts of all components in the composition, including impurities always add up to 100%. Moreover, it should be understood that where small quantities of components are specified in the compositions, for example, in amounts of about 0.05% by weight. or less, such components may be present in the form of trace impurities in the raw materials, rather than as specially added.
Moreover, the components can be added to the batch to be loaded, for example, to facilitate processing, it is removed later, thereby forming a glass composition that is essentially free of such components. Thus, for example, small amounts of components such as fluorine and sulfate may be present as trace impurities in the raw materials containing silica, calcium oxide, aluminum oxide and magnesium oxide, the industrial application of the invention, or they may be processing aids that practically removed in the manufacturing process.
As seen from the above examples, glass fiber compositions for the present invention possess useful properties, such as low fiberizing temperatures and large temperature difference between the fiberizing temperature and the liquidus (higher delta T value). Other advantages and obvious modifications of the invention will be apparent from the foregoing description and the subsequent experience of using the present invention. High performance glass of the present invention is melted and purified at a relatively low temperature, it has a viscosity of working over a wide range of low temperatures and relatively small area of the liquidus temperature.
The present invention is described herein in general terms and with reference to specific embodiments. Although the present invention is described in terms of preferred embodiments, a wide variety of alternatives available to those skilled in the art, may be selected from the general description. Other advantages and obvious modifications of the present invention will become apparent to those skilled in the art from the foregoing description and from the further use of the invention. The present invention is not limited except claims.
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Numbers
- Publication
- 0002607331
- Publication, DOCDB
- 2607331
- Publication, EPODOC
- RU2607331
- Application
- 137644
- Application, DOCDB
- 2011137644
- Application, EPODOC
- RU20110137644
Titles3
- Russian
- ИСХОДНАЯ КОМПОЗИЦИЯ ДЛЯ ПОЛУЧЕНИЯ СТЕКЛЯННЫХ ВОЛОКОН И ПОЛУЧЕННОЕ ИЗ НЕЕ СТЕКЛЯННОЕ ВОЛОКНО
- English
- INITIAL COMPOSITION FOR GLASS FIBRES PRODUCING AND GLASS FIBRE OBTAINED FROM IT
- Russian
- ???????? ?????????? ??? ????????? ?????????? ??????? ? ?????????? ?? ??? ?????????? ???????
Classification
- CPC, 2
- C03C13/00
- C03C3/087
- IPC, 1
- C03C13 00