Verfahren und Vorrichtung zur Erzeugung von Floatglas

    公开(公告)号:EP2505947A1

    公开(公告)日:2012-10-03

    申请号:EP11004356.9

    申请日:2011-05-26

    IPC分类号: F25J3/04 C03B5/235 C03B18/20

    摘要: Das Verfahren und die Vorrichtung dienen zur Erzeugung von Floatglas. Ein Glasrohstoff (211) wird mittels einem oder mehreren Brennern (210) geschmolzen. Die dabei gewonnene Glasschmelze (212) wird in eine Floatglaswanne (220) eingeleitet. Ein erstes Gasgemisch (112), das Stickstoff (110) und Wasserstoff (111) enthält, wird zur Bildung einer Inertschicht über der eingeleiteten Glasschmelze in die Floatglaswanne (220) eingeleitet. Der oder die Brenner (210) werden mit einem sauerstoffhaltigen Gas und einem Brennstoff (213) betrieben. Als sauerstoffhaltiges Gas wird ein zweites Gasgemisch (122) eingesetzt, das mindestens 35 % Sauerstoff enthält.

    摘要翻译: 该方法包括将玻璃原料(211)引入燃烧器(210)以产生引入浮法玻璃浴(220)的熔融玻璃(212)。 使用含氧气体(122)和燃料(213)操作燃烧器。 施加气体混合物(112),氮气产物(110)和氢气(111),以在浮法玻璃浴中引入的玻璃熔体上形成惰性层。 提供一种空气分离装置(100),用于制造用于制备用于制备气体混合物的含氧气体和氮气产物的氧气产物(120)。 包括用于生产浮法玻璃的装置的独立权利要求。

    METHOD AND APPARATUS FOR REDUCING TIN OXIDE IN FLOAT GLASS PRODUCTION
    2.
    发明公开
    METHOD AND APPARATUS FOR REDUCING TIN OXIDE IN FLOAT GLASS PRODUCTION 审中-公开
    方法和装置玻璃制造FLOAT异径氧化锡

    公开(公告)号:EP2414296A1

    公开(公告)日:2012-02-08

    申请号:EP10723371.0

    申请日:2010-03-25

    IPC分类号: C03B18/18

    CPC分类号: C03B18/18 C03B18/20

    摘要: A method for removing oxygen from molten tin in the float bath chamber of a float glass manufacturing process is provided. The method includes providing a chamber having within it molten metal and a gaseous atmosphere above the molten metal, providing at least one reducing gas container proximate the interface between the molten metal and the gaseous atmosphere, providing a source of a reducing gas, and directing the reducing gas to the at least one container. In the at least one container, the reducing gas reacts with the oxygen in the molten metal. The method may include removing a vapor/particulate stream from the float bath chamber. The method may also include removing the vapor and/or the particulate from the stream. An apparatus for removing oxygen from the molten tin is also provided.

    VERFAHREN UND VORRICHTUNG ZUM KONDITIONIEREN EINES ABK HLPRO ZESSBEREICHES ZUR VERRINGERUNG VON KORROSION
    3.
    发明公开
    VERFAHREN UND VORRICHTUNG ZUM KONDITIONIEREN EINES ABK HLPRO ZESSBEREICHES ZUR VERRINGERUNG VON KORROSION 审中-公开
    用于调节ABK HLPRO方法ZESSBEREICHES FOR减少腐蚀

    公开(公告)号:EP1697266A1

    公开(公告)日:2006-09-06

    申请号:EP04714280.7

    申请日:2004-02-25

    申请人: Wiessner GmbH

    摘要: The invention relates to a method for conditioning at least one partial area of a cooling process, wherein at least one moulded body moulded in a moulding process, preferably from a melt, is cooled during a cooling process according to a predefined or predefinable temperature profile, wherein thermally caused mechanical tensions are kept to a minimum in the moulded body. The inventive method comprises the following steps: at least one conditioning gas is conducted via at least one surface of the moulded body, which is corrodable in the presence of water, at least during one part of the cooling process; b) the absolute water content in the conditioning gas is adjusted to a range of at most 6 g water in 1 kg of conditioning drying gas, at least when the conditioning gas enters the cooling process area and/or when the conditioning gas hits the surface of the moulded body. Preferably, the moulded body comprises steel or glass.

    TOP ROLLER, FLOAT GLASS PRODUCTION DEVICE, AND FLOAT GLASS PRODUCTION METHOD
    4.
    发明公开
    TOP ROLLER, FLOAT GLASS PRODUCTION DEVICE, AND FLOAT GLASS PRODUCTION METHOD 审中-公开
    上辊,浮法玻璃生产设备和浮气的方法

    公开(公告)号:EP2444379A4

    公开(公告)日:2013-07-31

    申请号:EP10789563

    申请日:2010-06-17

    IPC分类号: C03B18/06 C03B18/20

    CPC分类号: C03B18/06 C03B18/20

    摘要: A top roller, which is difficult for a flow path for cooling water to be narrowed or clogged therein, and which is capable of properly working for a long period of time, is provided. A top roller comprising a rotatable leading edge portion, which is adapted to be used for controlling the shrinkage of a molten glass ribbon in a float bath and to be brought into contact with the molten glass ribbon, the leading edge portion having a hollow structure including a leading edge space therein; wherein cooling water having a hardness of at most 100 (mg/L) passes through the leading edge space.

    GLASS SUBSTRATE AND PROCESS FOR PRODUCING SAME
    5.
    发明公开
    GLASS SUBSTRATE AND PROCESS FOR PRODUCING SAME 审中-公开
    GLASSUBSTRAT UND HERSTELLUNGSVERFAHRENDAFÜR

    公开(公告)号:EP2371775A1

    公开(公告)日:2011-10-05

    申请号:EP09834605.9

    申请日:2009-10-14

    摘要: To provide a glass substrate which has a high glass transition temperature, which has a thermal expansion coefficient close to that of soda lime glass, which has a low specific gravity, which will hardly undergo yellowing, and which further has good melting characters and is thereby produced with high productivity.
    A glass substrate which has a composition comprising, as represented by mass percentage based on oxides,







    SiO 2
    55 to 65%,

    Al 2 O 3
    4 to 8%,

    MgO
    6 to 9%,

    CaO
    0.1 to 5%,

    SrO
    0.5 to 6%,

    BaO
    0 to 2%,

    MgO+CaO+SrO+BaO
    6.6 to 19%,

    Na 2 O
    0 to 5%,

    K 2 O
    9.5 to 21%,

    Na 2 O+K 2 O
    10 to 22%,

    ZrO 2
    0.5 to 5%,

    Fe 2 O 3
    0.06 to 0.15%,


    which has a specific gravity of at most 2.7, which has an average thermal expansion coefficient from 50 to 350°C of from 80×10 -7 °C to 90×10 -7 /°C, which has a glass transition temperature of at least 640°C, and wherein when the viscosity is η, the temperature at which logη=2 is satisfied is at most 1,550°C, and the yellow coloring b* on the glass surface is at most 8.

    摘要翻译: 为了提供玻璃化转变温度高的玻璃化转变温度,该玻璃基板的热膨胀系数接近钠钙玻璃的热膨胀系数,该玻璃化转变温度比较低,难以发生变黄,并且还具有良好的熔融特性 生产效率高。 一种玻璃基板,其具有以氧化物的质量百分数表示的组成,SiO 2 55〜65%,Al 2 O 3 4〜8%,MgO 6〜9%,CaO 0.1〜5%,SrO 0.5〜6 %,BaO 0〜2%,MgO + CaO + SrO + BaO 6.6〜19%,Na 2 O 0〜5%,K 2 O 9.5〜21%,Na 2 O + K 2 O 10〜22% 0.5〜5%,比重为2.7以下的Fe 2 O 3为0.06〜0.15%,平均热膨胀系数为50〜350℃,为80×10 -7〜90×10 -7 /℃,玻璃化转变温度至少为640℃,当粘度为·时,满足log·= 2的温度为1550℃以下,黄色着色b * 玻璃表面最多为8个。

    VERFAHREN ZUR VERMEIDUNG VON OBERFLÄCHENDEFEKTEN BEI GEFLOATETEM FLACHGLAS SOWIE DAS FLACHGLAS UND SEINE VERWENDUNG
    8.
    发明公开
    VERFAHREN ZUR VERMEIDUNG VON OBERFLÄCHENDEFEKTEN BEI GEFLOATETEM FLACHGLAS SOWIE DAS FLACHGLAS UND SEINE VERWENDUNG 审中-公开
    程序,以防止玻璃和GEFLOATETEM FLAT平板玻璃需求表面缺陷

    公开(公告)号:EP1924532A1

    公开(公告)日:2008-05-28

    申请号:EP06775863.1

    申请日:2006-08-17

    申请人: Schott AG

    IPC分类号: C03B18/02 C03B18/20 C03B5/225

    CPC分类号: C03B18/20 C03C3/091

    摘要: The invention relates to a method for preventing surface deposition and/or crater-shaped hole defects during the production of floating flat glass. Said method consists of producing a glass melt, purifying said melt and floating said purified melt on the surface of the liquid metal under an inert gas atmosphere. Said method is characterised in that it i) defines the hydrogen content in the inert gas to a maximum of 7 Vol. % and ii) adjusts the oxygen partial pressure in the floating gas melt a) by means of a metal, whereby the reaction enthalpy for the oxidation ΔG° (Me /MexOy7) is > -575,8 + 0.21 T[K] or b) by means of a metal whereby the reaction enthalpy for the oxidation ΔG° (Me /MexOy) is