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:
The invention relates to a borosilicate glass of high chemical resistance and low viscosity which contains zirconium oxide and lithium oxide. The borosilicate glass has hydrolytic resistance (in accordance with DIN ISO 719), class 1 acid resistance (in accordance with DIN 12116), and class 1 alkali resistance (in accordance with DIN ISO 659), and with a low operating temperature V.sub.A of between 1180.degree. C. to 1230.degree. C. and a coefficient of thermal expansion .alpha..sub.20/300 of 4.9.times.10.sup.-6 K.sup.-1. The borosilicate glass has the composition (in % by weight, based on oxide): SiO.sub.2 73-75; B.sub.2 0.sub.3 7-10; Al.sub.2 0.sub.3 5-7; ZrO.sub.2 1-3; Li.sub.2 0 0.5-1.5; Na.sub.2 0 0-10; K.sub.2 0 0-10; MgO 0-3; CaO 0-3; BaO 0-3; SrO 0-3; ZnO 0-3; ratio of SiO.sub.2 /B.sub.2 0.sub.3 .gtoreq.7.5; .SIGMA. SiO.sub.2 +Al.sub.2 0.sub.3 +ZrO.sub.2 80-83 and .SIGMA. MgO+CaO+BaO+SrO+ZnO.ltoreq.3, and fluorides 0-3. The glass is particularly suitable for use as a versatile primary packaging material for pharmaceuticals, for example as ampule glass.
摘要翻译:本发明涉及含有氧化锆和氧化锂的高耐化学性和低粘度的硼硅酸盐玻璃。 硼硅酸盐玻璃具有耐水解性(符合DIN ISO 719),1级耐酸性(符合DIN 12116)和1级耐碱性(符合DIN ISO 659标准),并具有低的工作温度VA 1180℃至1230℃,热膨胀系数α20/300为4.9×10 -6 K -1。 硼硅酸盐玻璃的组成(以重量%计,基于氧化物):SiO 2 73-75; B203 7-10; Al203 5-7; ZrO2 1-3; Li20 0.5-1.5; Na20 0-10; K20 0-10; MgO 0-3; CaO 0-3; BaO 0-3; SrO 0-3; ZnO 0-3; SiO 2 / B 2 O 3的比例> = 7.5; SIGMA SiO 2 + Al 2 O 3 + ZrO 2 80-83和SIGMA MgO + CaO + BaO + SrO + ZnO 3,氟化物0-3。 该玻璃特别适合用作药物的通用初级包装材料,例如作为安瓿玻璃。
摘要:
The invention relates to an alkaline-earth aluminosilicate glass with the following composition (in wt. %, based on oxide content): SiO2 >58-62; B2O3 0 5.5; Al2O3 13.5 17.5; MgO 0-7; CaO 5.5-14; SrO 0-8, BaO 6-14; ZrO2 0-2; CeO2 0.001 0.5; TiO2 0.01-2. The glass is particularly suitable for use as a bulb material for halogen light bulbs.
摘要翻译:本发明涉及一种具有以下组成(以重量%,基于氧化物含量)的碱土铝硅酸盐玻璃:SiO 2 = 58-62; B u> 3 u> 铝2 O 3 13.5 17.5; MgO 0-7; CaO 5.5-14; SrO 0-8,BaO 6-14; ZrO 2 0-2; CeO 2 <0.001> 0.5; TiO 2 0.01-2。 该玻璃特别适用于卤素灯泡的灯泡材料。
摘要:
A light device, preferably a metal halide high pressure discharge lamp, which includes a first body which has a light element, a second body which encompasses the first body, whereby the second body consists essentially of an Al-silicate glass, for example a hard glass. The Al-silica glass has a Tg of >600° C., preferred >650° C., especially preferred >700° C., particularly preferred >750° C., and a thermal expansion coefficient α20/300>0, preferably in the range of 3≦α20/300≦6, particularly preferred 3.5≦α20/300≦5.5
摘要:
The invention relates to an alkaline-earth aluminosilicate glass with the following composition (in wt. %, based on oxide content): SiO2>58-62; B2O3 0 5.5; Al2O3 13.5 17.5; MgO 0-7; CaO 5.5-14; SrO 0-8, BaO 6-14; ZrO2 0-2 CeO2 0.001 0.5; TiO2 0.01-2. The glass is particularly suitable for use as a bulb material for halogen light bulbs.
摘要翻译:本发明涉及一种具有以下组成(以重量%,基于氧化物含量)的碱土铝硅酸盐玻璃:SiO 2 = 58-62; B u> 3 u> 铝2 O 3 13.5 17.5; MgO 0-7; CaO 5.5-14; SrO 0-8,BaO 6-14; ZrO 2 0-2 CeO 2 0.001 0.5; TiO 2,0.01-2。 该玻璃特别适用于卤素灯泡的灯泡材料。
摘要:
The regionally coated noble metal element used in glass production has an uncoated region for contacting a glass melt and an H2-impervious layer or an H2-impervious and O2-impervious layer on a side opposite from the uncoated region, which has a layer thickness ≧1 mm, is heat-resistant, and is either liquid or solid. This layer is made from at least one glass or glass mixture, an at least partly crystallized glass or a ceramic material. The coated noble metal element can be a Danner channel, a Vello draw head, an A-draw head, a Vello needle, a drawdown needle, a discharge ring or a Danner blowpipe. A process for coating a noble metal element to produce the regionally coated noble metal element is also described.
摘要:
The glass for a fluorescent light with a high hydrolytic resistance, which has composition, in % by weight based on oxide content of: SiO2, 63-75; B2O3, 15-18; Al2O3, 3.2-4.5; Na2O, 1-2; K2O, 2-6; ΣNa2O+K2O, 3-8; MgO, 0-8; CaO, 0-10; SrO, 0-10; BaO, 0-10; ZnO, 0-5; ΣMgO+CaO+SrO+BaO+ZnO, 0-10; ZrO2, 0-3; CeO2, 0-10; Fe2O3, 0-1; WO3, 0-3; Bi2O3, 0-5; MoO3, 0-3; TiO2, 0-10; ΣHf+Ta+W+Re+Os+Ir+Pt+La+Pr+Nd+Sm+Eu+Gd+Tb+Dy+Ho+Er+Tm+Yb+Lu in oxidic form, 0 to 5% by weight, as well as one or more conventional refining agents. The glass is characterized in that it contains no lithium and has a weight ratio of Na2O to K2O of less than one.
摘要翻译:用于具有高耐水解性的荧光的玻璃,其具有以SiO 2,63-75的氧化物含量为基准的重量%的组成; B2O3,15-18; Al2O3,3.2-4.5; Na2O,1-2; K2O,2-6; SigmaNa2O + K2O,3-8; MgO,0-8; CaO,0-10; SrO,0-10; 宝,0-10; ZnO,0-5; SigmaMgO + CaO + SrO + BaO + ZnO,0-10; ZrO2,0-3; CeO2,0-10; Fe2O3,0-1; WO3,0-3; Bi2O3,0-5; MoO3,0-3; TiO2,0-10; 0-5重量%的SigmaHf + Ta + W + Re + Os + Ir + Pt + La + Pr + Nd + Sm + Eu + Gd + Tb + Dy + Ho + Er + Tm + Yb + 以及一种或多种常规的澄清剂。 该玻璃的特征在于它不含锂,并且Na 2 O与K 2 O的重量比小于1。
摘要:
The borosilicate glass for pharmaceutical packaging has a transmission τ in the visible range of more than 80% at a wavelength of 400 nm, a transmission τ in the UV range of at most 0.1% at wavelengths under 260 nm (each at a sample thickness of 1 mm), a transformation temperature Tg of 550° C. to 590° C. and a processing temperature VA of 1100° C. to 1200° C. The glass has a composition, in wt. % on an oxide basis, of SiO2, 60-80; B2O3, 5-15; Al2O3, 2-10; TiO2, 0.5-7; Σ Li2O+K2O+Na2O, 3-10; Σ alkaline earth oxides, 0.5-10; ZrO2, 0-3; and Fe2O3, 0-0.2. The glass is suitable for packaging UV-sensitive substances but nevertheless permits optical quality control.
摘要:
The apparatus for continuously manufacturing a calibrated round or profiled glass tube with a predetermined inner profile has a melt feed with an outlet opening for molten glass, a shaping body for forming a hollow drawing bulb from the molten glass, a profile forming body positioned downstream of the shaping body, and a device for changing a distance between the shaping body and the profile forming body to vary a wall thickness of the glass tube. The molten glass from the outlet opening is drawn over the shaping body to form the drawing bulb and the drawing bulb is drawn over the profile forming body so that inner circumferential surfaces of the drawing bulb are deformed while bearing on outer surfaces of the profile forming body to form the predetermined inner profile of the glass tube.
摘要:
The chemically resistant borosilicate glass has the following composition (in % by weight): SiO2, 67-74; B2O3, 5-10; Al2O3, 3-10; Li2O, 0-4; Na2O, 0-10; K2O, 0-10; MgO, 0-2; CaO, 0-3; SrO, 0-3; BaO, 0-3; ZnO, 0-3; ZrO2, 0-3; CeO2, 0-1; with ΣLi2O+Na2O+K2O=0.5 to 10.5 and ΣMgO+CaO+SrO+BaO+ZnO=0-6. The borosilicate glass is characterized by a composition including 0 to 10% of at least one of TiO2, Bi2O3 and MoO3 and a sum total of TiO2+Bi2O3+MoO3 of 0.1 to 10%. This glass is obtained from the melt under oxidative conditions. The glass is useful in gas discharge lamps, such as Xenon lamps and fluorescent lamps, and display devices, flat structured backlighting devices, and glass-to-metal seals with Mo, Wo and Ni—Fe—Co alloys.
摘要翻译:耐化学腐蚀性硼硅酸盐玻璃具有以下组成(重量%):SiO 2,67-74; B2O3,5-10; Al2O3,3-10; Li2O,0-4; Na2O,0-10; K2O,0-10; MgO,0-2; CaO,0-3; SrO,0-3; 宝,0-3; ZnO,0-3; ZrO2,0-3; CeO2,0-1; SigmaLi2O + Na2O + K2O = 0.5〜10.5,SigmaMgO + CaO + SrO + BaO + ZnO = 0-6。 硼硅酸盐玻璃的特征在于包含0〜10%的TiO 2,Bi 2 O 3和MoO 3中的至少一种,TiO 2 + Bi 2 O 3 + MoO 3的总和为0.1〜10%的组成。 这种玻璃是在氧化条件下从熔体中获得的。 该玻璃可用于气体放电灯,例如氙气灯和荧光灯,以及显示装置,平面结构的背光装置以及具有Mo,Wo和Ni-Fe-Co合金的玻璃 - 金属密封。