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    • 5. 发明申请
    • Device and process for producing a glass tube
    • 用于生产玻璃管的装置和方法
    • US20060130525A1
    • 2006-06-22
    • US11296772
    • 2005-12-07
    • Frank BuellesfeldMarkus RiedlPaul Kissl
    • Frank BuellesfeldMarkus RiedlPaul Kissl
    • C03B17/04C03B29/00D02G3/00
    • C03B17/04C03B40/04Y10T428/2975
    • The invention relates to a device and a process for producing a glass tube, preferably continuously. The device comprises a shaft (9) into which a glass melt is introduced, so that the outer profile of the glass tube (1) is determined at least in sections by the shaft, and a shaping means (10), which extends coaxially in the interior of the shaft, for determining the inner profile of the glass tube (1). The shaping means (10) is cooled and the shaft is disposed vertically. The glass melt is cast freely into the shaft (9) while forming a free meniscus. According to the invention, the shaping means (10) is cooled so that the glass melt solidifies in the shaft to form the glass tube (1). The glass passes through the temperature range which is critical for crystal formation within a very short time, so that precise glass tubes can also be produced from readily crystallising glasses. It is also possible to precisely shape glass tubes with any desired inner and/or outer profiles. Glass tubes with a comparatively low ratio of outside diameter (OD) to wall thickness (WT), in particular with a ratio OD/WT of lower than approximately 0.1*OD/[mm], can be produced by redrawing.
    • 本发明涉及优选连续地制造玻璃管的装置和方法。 该装置包括一个引入玻璃熔体的轴(9),使得玻璃管(1)的外部轮廓至少由轴部分地确定;以及成形装置(10),其同轴地延伸 轴的内部,用于确定玻璃管(1)的内部轮廓。 成形装置(10)被冷却并且轴垂直地设置。 玻璃熔体自由地铸造到轴(9)中,同时形成自由的弯液面。 根据本发明,冷却成形装置(10),使得玻璃熔体在轴上固化以形成玻璃管(1)。 玻璃通过在非常短的时间内对于晶体形成至关重要的温度范围,从而也可以由容易结晶的玻璃制造精确的玻璃管。 也可以用任何所需的内部和/或外部轮廓精确地成形玻璃管。 外径(OD)与壁厚(WT)的比例相对较低的玻璃管,特别是比OD / WT低于约0.1 * OD / [mm]的玻璃管可以通过重新制造来制造。
    • 9. 发明授权
    • Transparent or translucent inorganic material with high transmission in
the 2700-3300 nm wavelength range
    • 透明或半透明的无机材料,在2700-3300nm波长范围内具有高透射率
    • US5446008A
    • 1995-08-29
    • US165877
    • 1993-12-14
    • Georg KrollaPaul KisslPeter NassKurt Schaupert
    • Georg KrollaPaul KisslPeter NassKurt Schaupert
    • F24C7/04A47J36/02C03C3/085C03C3/097C03C3/11C03C4/10C03C10/00C03C10/04C03C10/14F24C15/10F26B3/30C03C3/083
    • C03C10/0027
    • A transparent or translucent inorganic material, especially a glass-ceramic and/or composite material, is provided with a low average thermal longitudinal expansion coefficient, .alpha., of from -1.times.10.sup.-6 K.sup.-1 to +2.times.10.sup.-6 K.sup.-1 in the temperature range of -50.degree.-700.degree. C., with the following composition (in weight percent):Li.sub.2 O, 2.5-6.0; Na.sub.2 O, 0-4.0; K.sub.2 O, 0-4.0; Na.sub.2 O+K.sub.2 O, 0.2-4.0; MgO, 0-3.0; ZnO, 0-3.0; BaO, 0-3.5; CaO, 0-1.0; SrO, 0-1.0; Al.sub.2 O.sub.3, 18-28; SiO.sub.2, 50-70; TiO.sub.2, 1.0-7.0; ZrO.sub.2, 0-3.5; TiO.sub.2 +ZrO.sub.2, 1.0-7.0; and P.sub.2 O.sub.5, 0-8.0,optionally with coloring components (in weight percent):V.sub.2 O.sub.5, 0-2.0; Cr.sub.2 O.sub.3, 0-2.0; MnO, 0-2.0; Fe.sub.2 O.sub.3, 0-2.0; CoO, 0-2.0; and NiO, 0-2.0,optionally, conventional refining agents, such as As.sub.2 O.sub.3, Sb.sub.2 O.sub.3, NaCl, and Ce.sub.2 O.sub.3, and optionally with high quartz (h-quartz) and/or keatite mixed crystals as the essential crystalline phase. The material exhibits a settable transmission and is suitable, in particular, for the production of plates, pipes, and molded articles, wherein the inorganic material has a water content of less than 0.03 mol/l.
    • 透明或半透明的无机材料,特别是玻璃 - 陶瓷和/或复合材料,在温度范围内具有-1x10-6K-1至+ 2x10-6K-1的低平均热纵向膨胀系数α -50℃-700℃,具有以下组成(重量百分比):Li 2 O,2.5-6.0; Na2O,0-4.0; K2O,0-4.0; Na2O + K2O,0.2-4.0; MgO,0-3.0; ZnO,0-3.0; BaO,0-3.5; CaO,0-1.0; SrO,0-1.0; Al2O3,18-28; SiO2,50-70; TiO2,1.0-7.0; ZrO 2,0-3.5; TiO2 + ZrO2,1.0-7.0; 和P 2 O 5,0-8.0,任选地具有着色组分(重量百分比):V2O5,0-2.0; Cr2O3,0-2.0; MnO,0-2.0; Fe2O3,0-2.0; CoO,0-2.0; 和NiO,0-2.0,任选的常规精炼剂,例如As2O3,Sb2O3,NaCl和Ce2O3,以及任选的高石英(h-石英)和/或酮铁矿混合晶体作为必需结晶相。 该材料具有可设定的透射性,特别适用于制造板,管和模制品,其中无机材料的水含量低于0.03mol / l。