摘要:
The lead-free optical glasses have an index of refraction (nd) between 1.49 and 1.55 and an Abbé number (&ngr;d) between 47 and 59. They contain (in percent by weight on an oxide basis) 60 to 70, SiO2; 0.3 to 5, Al2O3; 16 to 25, Na2O; 0 to 9, TiO2; 0 to 7, advantageously 0.1 to 2, ZrO2; 0 to
摘要:
Flat panel liquid-crystal displays, such as for laptop computers. The displays include twisted nematic displays, supertwisted nematic displays, active matrix liquid-crystal displays, thin film transistor displays, and plasma addressed liquid-crystal displays. The displays are furnished with glass substrates. The glass substrates exhibit high resistance to thermal shock, a high transparency over a broad spectral range in the visible and ultra violet ranges and the glass being configured to be free of bubbles, knots, inclusions, streaks, and surface undulations, which glass substrates are made from alkali-free aluminoborosilicate glasses. There are also provided analogous thin-film photovoltaics.
摘要:
Described is an alkali-free aluminoborosilicate glass with a viscosity of 10.sup.13 dPas at a temperature of above 700.degree.0 C., a processing temperature V.sub.A of less than 1220.degree.0 C., and very good chemical stability, which can be produced in a float unit and has the following composition, in % by weight based on oxide:______________________________________SiO.sub.2 48 -- 20 -- 26MgO 0 -- 8CaO 4 -- 12BaO 0 -- 2SrO 0 -- 2ZnO 1 -- 8ZrO.sub.2 0 -- 2SnO.sub.2 0.5 -- 2______________________________________The glass is especially suitable for use in display technology.
摘要翻译:描述了在700℃以上的温度下粘度为1013dPa·s,处理温度VA小于1220℃的无碱铝硼硅酸盐玻璃,以及非常好的化学稳定性,其可以在 浮选单元,并具有以氧化物计的重量%以下组成:-SiO 2 48 - <55 - B 2 O 3 7 - 15 - Al 2 O 3> 20 - 26 - MgO 0 - 8 - CaO 4 - 12 - BaO 0 - 2 SrO 0 - 2 - ZnO 1 - 8 - ZrO2 0 - 2 - SnO2 0.5 - 2 - 该玻璃特别适用于显示技术。
摘要:
Reducing melt borosilicate glass having a UV transmittance of at least 85% for ultraviolet radiation having a wavelength of 254 nm for a sample thickness of 1 mm and a water-resistance of less than 100 micrograms, advantageously less than 62 micrograms, Na.sub.2 O per gram of glass powder according to ISO 719 and a thermal expansion coefficient .alpha..sub.20/300 of from 5 to 6.times.10.sup.-6 K.sup.-1 and comprising from 58 to 65% by weight SiO.sub.2, from 18 to 20.5% by weight B.sub.2 O.sub.3, from 8.1 to 10.4% by weight Al.sub.2O.sub.3, from 0 to 1% by weight CaO, from 0 to 2% by weight BaO, from 0 to 2% by weight SrO, from 0 to 1.5% by weight Li.sub.2 O, from 5.5 to 8.5% by weight Na.sub.2 O, from 0 to 3% by weight K.sub.2 O and from 0 to 2% by weight fluorine. The sum total content of all of the alkali metal oxides present in the glass is not greater than 10% and the sum total content of the CaO, BaO and SrO is not greater than 3% and the molar ratio of Al.sub.2 O.sub.3 : Na.sub.2 O is from 0.6 to 1. The glass is particularly suitable for EPROM windows, UV lamps, photomultipliers, spectrophotometers under difficult climatic conditions and protective tubes for UV lamps immersed in water in waste water treatment operations.
摘要翻译:将具有254nm波长的紫外线辐射的紫外线透射率至少为85%的熔融硼硅酸盐玻璃减少到样品厚度为1mm,耐水性小于100微克,有利地小于62微克,Na 2 O /克 根据ISO 719的玻璃粉末和5至6×10-6K-1的热膨胀系数α20/300,并且包含58至65重量%的SiO 2,18至20.5重量%的B 2 O 3,8.1至10.4重量%的 0〜1重量%的CaO,0〜2重量%的BaO,0〜2重量%的SrO,0〜1.5重量%的Li 2 O,5.5〜8.5重量%的Na 2 O,0 至3重量%的K 2 O和0至2重量%的氟。 玻璃中存在的所有碱金属氧化物的总含量不大于10%,CaO,BaO和SrO的总含量不大于3%,Al 2 O 3 :Na 2 O的摩尔比为0.6 该玻璃特别适用于恶劣气候条件下的EPROM窗口,UV灯,光电倍增管,分光光度计,以及在废水处理操作中浸入水中的紫外线灯的保护管。
摘要:
A drilling or chiseling tool (1) includes a suction device (2) with a suction head (3), a suction line (4) extending from the suction head to a suction blower wheel (5) and a separating device (6). The suction device (2) is detachably connected with the tool (1). When connecting the suction device (2) to the tool (1), the shaft (9) of the suction blower wheel (5) can be coupled with the drive shaft (8) of a drive motor (7) for the tool.
摘要:
A borosilicate glass is described of the composition on oxide basis in % by weight of 50-75 SiO.sub.2, 11-18 B.sub.2 O.sub.3, 1-5 Al.sub.2 O.sub.3, 0-3 Li.sub.2 O, 0-3 Na.sub.2 O, 0-2 K.sub.2 O, 9-22 Cs.sub.2 O, 0-2 ZnO, 0-2 MgO, 0-3 CaO, 0-3 SrO, 0-3 BaO, provided that the sum of the alkali oxides, apart from Cs.sub.2 O, is at most 5 and the sum of the alkaline-earth oxides plus ZnO is at most 6. The glass is especially suitable for the production of electronic flash lamps, which with this glass reach a multiple of the service life of electronic flash lamps made from the conventional glass.
摘要翻译:描述了基于氧化物的组成的硼硅酸盐玻璃,其重量百分比为50-75SiO 2,11-18B 2 O 3,1-5 Al 2 O 3,0-3 Li 2 O,0-3 Na 2 O,0-2 K 2 O,9-22 Cs 2 O ,0-2 ZnO,0-2 MgO,0-3 CaO,0-3 SrO,0-3 BaO,条件是除了Cs 2 O之外的碱金属氧化物的总和至多为5, 地球氧化物加ZnO最多为6.该玻璃特别适用于生产电子闪光灯,该玻璃能够达到传统玻璃制成的电子闪光灯使用寿命的一倍。
摘要:
A sealing glass is provided for the production of glass-to-metal seals, especially for battery headers, in storage batteries having a lithium electrode. The constituents of the glass, expressed in % by weight on an oxide basis, comprise:______________________________________ 16-25 SiO.sub.2 0-8 Li.sub.2 O 0-4 MgO 20-35 B.sub.2 O.sub.3 0-5 Na.sub.2 O 5-12 CaO 15-24 Al.sub.2 O.sub.3 0-10 K.sub.2 O 10-30 BaO + SrO 4-15 .SIGMA. alkali oxide 0-5 ZnO 15-40 .SIGMA. alkaline- earth oxide + ZnO ______________________________________ The coefficient of thermal expansion of the glass is closely matched to the metals in the cell housing. This glass also has a good welding strength and corrosion resistance, as well as satisfactory hydrolytic resistance.
摘要翻译:提供了一种用于在具有锂电极的蓄电池中生产玻璃 - 金属密封件,特别是用于电池接头的密封玻璃。 以氧化物为基准以重量%表示的玻璃成分包括:-16-25 SiO 2 0-8 Li 2 O 0-4 MgO -20-35 B 2 O 3 0-5 Na 2 O 5-12 CaO -15-24 Al 2 O 3 0 -10 K2O 10-30 BaO + SrO - 4-15 SIGMA碱性氧化物0-5 ZnO - 15-40 SIGMA碱土金属+ - ZnO - 玻璃的热膨胀系数与 细胞壳。 该玻璃还具有良好的焊接强度和耐腐蚀性,以及令人满意的耐水解性。