利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

49 条记录 (耗时 0.015 秒)

    SCHMELZTIEGEL FÜR DEN EINSATZ IN EINEM TIEGELZIEHVERFAHREN FÜR QUARZGLAS
    3.
    发明公开
    SCHMELZTIEGEL FÜR DEN EINSATZ IN EINEM TIEGELZIEHVERFAHREN FÜR QUARZGLAS 有权
    坩埚用在杯抽签程序对QUARZGLAS

    公开(公告)号：EP2365944A1

    公开(公告)日：2011-09-21

    申请号：EP09774664.8

    申请日：2009-12-09

    申请人： Heraeus Quarzglas GmbH & Co. KG

    发明人： FRANZ, Bernhard ,  WHIPPEY, Nigel ,  BECKER, Joerg ,  LEBER, Helmut

    IPC分类号： C03B5/033 ,  C03B5/167 ,  C03B5/43

    CPC分类号： C03B5/43 ,  C03B5/0336 ,  C03B5/1672

    摘要： In a known melting crucible for use in a crucible drawing method, it is provided that the interior face of the crucible wall facing a crucible interior space is covered at least partially with a protective layer made of a noble metal. The known melting crucible does have good corrosion resistance with respect to the quartz glass melt, but the material costs are high because of the expensive coating metals. In order to provide a melting crucible for use in a crucible drawing method for quartz glass that exhibits good corrosion resistance at low material costs, it is proposed that the protective layer (2) be composed of a gas-tight, oxidic material that is not subject to a phase transition in the temperature range of 20°C to 1800°C, and that the crucible interior space (17) have a gas space (17) above the quartz glass mass (27) to be held, and that the protective layer (2) be provided exclusively on the surface of the melting crucible interior face adjacent to the gas space (17).

    VERFAHREN ZUR HERSTELLUNG EINES FORMKÖRPERS AUS ELEKTROGESCHMOLZENEM SYNTHETISCHEM QUARZGLAS
    5.
    发明公开
    VERFAHREN ZUR HERSTELLUNG EINES FORMKÖRPERS AUS ELEKTROGESCHMOLZENEM SYNTHETISCHEM QUARZGLAS 有权
    VERFAHREN ZUR HERSTELLUNG EINESFORMKÖRPERSAUS ELEKTROGESCHMOLZENEM SYNTHETISCHEM QUARZGLAS

    公开(公告)号：EP2834200A1

    公开(公告)日：2015-02-11

    申请号：EP13712545.6

    申请日：2013-03-26

    申请人： Heraeus Quarzglas GmbH & Co. KG

    发明人： LEHMANN, Walter ,  KAYSER, Thomas ,  ARNDT, Martin ,  HOFMANN, Achim

    IPC分类号： C03B20/00 ,  C03B5/033 ,  C03B19/10

    CPC分类号： C03B20/00 ,  C03B5/033 ,  C03B5/0336 ,  C03B19/108 ,  C03B19/1095 ,  Y02P40/57

    摘要： In a known method for producing a mold body from synthetic quartz glass, quartz glass granules (15) are heated in an electrically heated melt container (31) to form a softened quartz glass mass (57), and the softened quartz glass mass (57) is formed to the mold body. In order to achieve an advantageous melting behavior also in continuous melting processes, it is proposed according to the invention that synthetically produced quartz glass granules (15) of granular particles are used in which helium is enclosed, wherein said quartz glass granules (15) are produced by granulating pyrogenically produced silicic acid with the formation of a SiO
    2 granulate (9) and subsequent vitrification of the SiO
    2 granulate in a rotary kiln (1), which has a rotary tube (6) which is at least partially made of a ceramic material, and under a treatment gas that contains at least 30% by volume of helium.

    摘要翻译： 在从合成石英玻璃制造模具体的已知方法中，将石英玻璃颗粒（15）在电加热熔融容器（31）中加热以形成软化石英玻璃块（57），并将软化的石英玻璃块（57 ）形成在模具体上。 为了在连续熔融过程中也实现有利的熔融行为，根据本发明提出，使用合成生产的颗粒颗粒的石英玻璃颗粒（15），其中包封氦气，其中所述石英玻璃颗粒（15）为 通过在形成SiO 2颗粒（9）中造粒热解产生的硅酸并随后在回转窑（1）中玻璃化SiO 2颗粒而制备，旋转窑（1）具有至少部分由陶瓷材料制成的旋转管（6） 并且在含有至少30体积％的氦的处理气体下。

    Glass melting furnace
    8.
    发明公开
    Glass melting furnace 失效
    玻璃熔炉

    公开(公告)号：EP0325055A3

    公开(公告)日：1990-09-12

    申请号：EP88312192.3

    申请日：1988-12-22

    申请人： NIPPON SHEET GLASS CO., LTD.

    发明人： Manabe, Seiichiro ,  Nagashima, Yukihito

    IPC分类号： C03B5/033

    CPC分类号： C03B5/033 ,  C03B5/0336 ,  Y10S65/04

    摘要： A vertical glass melting furnace (10) is provided with a material entrance (1) at the uppermost portion and a molten glass exit (2) is provided at the lowermost portion. A resistance heating element 6 is provided over the substantially entire part of the horizontal section of the furnace at at least one level which is immersed in the molten glass.

    摘要翻译： 立式玻璃熔炉（10）在其最上部设有材料入口（1），最下部设有熔融玻璃出口（2）。 电阻加热元件6设置在熔炉的水平部分的基本上整个部分的至少一个浸没在熔融玻璃中的高度上。

    RELATED CASES
    10.
    发明授权
    RELATED CASES 失效
    相关案例

    公开(公告)号：EP0236486B1

    公开(公告)日：1989-04-26

    申请号：EP86906093.9

    申请日：1986-09-16

    申请人： EMHART INDUSTRIES, INC.

    发明人： BLUMENFELD, John Franklin

    IPC分类号： C03B5/033 ,  C03B5/225 ,  C03B5/235 ,  C03B5/24

    CPC分类号： C03B7/06 ,  C03B7/07

    摘要： A forehearth for a glass furnace includes a roof formed of a plurality of roof blocks (22) designed to provide below the roof blocks a central longitudinal channel (36) and side channels (38, 40) on each side of the central channel. An electric heating element (60) is positioned in a bore (62) in the roof blocks substantially directly above the side channels (38, 40) to permit radiation of heat to the glass surface above the side channels (38, 40). The temperature of the molten glass utilizing the construction can be effectively uniformly controlled across its cross-section.