DEVICE AND METHOD FOR LENGTH CUTTING IN ULTRATHIN GLASSES

    公开(公告)号:US20220017401A1

    公开(公告)日:2022-01-20

    申请号:US17376076

    申请日:2021-07-14

    申请人: SCHOTT AG

    摘要: A method for the production of glass ribbon portions is provided that includes: transporting a glass ribbon at a velocity v1, wherein the velocity v1 is dependent on the predetermined glass thickness (d1), with the application of a tensile stress parallel to the edges of the glass ribbon, in a plane E1, and cooling the glass ribbon at a cooling rate that is dependent on the predetermined glass thickness (d1), inserting a score on the surface of the glass ribbon in at least one edge area by scoring the glass surface with a scoring tool, wherein the score has an angle a to the transport direction of the glass ribbon, deflecting the glass ribbon in a plane E2 to generate a bending stress and separating a glass ribbon portion with the formation of edges by breaking the glass ribbon on the extension of the score running transversely to the glass ribbon.

    APPARATUS AND METHOD FOR PRODUCING GLASS RIBBONS

    公开(公告)号:US20210024399A1

    公开(公告)日:2021-01-28

    申请号:US16938092

    申请日:2020-07-24

    申请人: SCHOTT AG

    IPC分类号: C03B17/06

    摘要: An apparatus is provided for producing thin glass ribbons from molten glass. The apparatus includes a drawing tank, a direct heater, and an indirect heater. The drawing tank has a lower elongated nozzle opening through which the molten glass can exit downwards. The direct heater has one or more heating circuits operable to heat the drawing tank in a first heating zone. The direct heater has a power source for each on the heating circuits. Each heating circuit has connections to connected to a wall of the drawing tank so that current from the power source flows through at least a portion of the wall and heats the wall. Each heating circuit also includes current-carrying portions of the wall. The indirect heater has one or more heating elements to heat the drawing tank in a second heating zone.

    GLASSES WITH IMPROVED ION EXCHANGEABILITY
    3.
    发明申请

    公开(公告)号:US20200010355A1

    公开(公告)日:2020-01-09

    申请号:US16460084

    申请日:2019-07-02

    申请人: Schott AG

    摘要: The present invention relates to glasses, such as e.g. thin or thinnest glasses, but also to glasses for the production of tubular glass, carpules and syringes as well as other pharmaceutical vessels. The glasses are characterized by a high chemical prestressability (tem-perability) with very well alkali, hydrolytic and/or acid resistance as well as an advantageous coefficient of thermal expansion. The glass has a composition characterized by the following constituent phases: 0-60 mol % reedmergnerite; 20-60 mol % albite; 0-30 mol % orthoclase; 0-20 mol % natrosilite; 0-20 mol % sodium metasilicate; 0-20 mol % parakeldyshite; 0-20 mol % narsarsukite; 0-20 mol % disodium zinc silicate; 0-21 mol % cordierite; and 0-20 mol % danburite. A quotient of a coefficient of thermal expansion of the glass multiplied by 1000 (in ppm/K) and the product of a pH value and a removal rate in alkaline environment (in mg/(dm23h)) according to ISO 695 is at least 9.0.

    Apparatus and method for producing glass ribbons

    公开(公告)号:US12129197B2

    公开(公告)日:2024-10-29

    申请号:US16938092

    申请日:2020-07-24

    申请人: SCHOTT AG

    IPC分类号: C03B17/06

    摘要: An apparatus is provided for producing thin glass ribbons from molten glass. The apparatus includes a drawing tank, a direct heater, and an indirect heater. The drawing tank has a lower elongated nozzle opening through which the molten glass can exit downwards. The direct heater has one or more heating circuits operable to heat the drawing tank in a first heating zone. The direct heater has a power source for each on the heating circuits. Each heating circuit has connections to connected to a wall of the drawing tank so that current from the power source flows through at least a portion of the wall and heats the wall. Each heating circuit also includes current-carrying portions of the wall. The indirect heater has one or more heating elements to heat the drawing tank in a second heating zone.

    PRE-STRESSED GLASS ROLL
    9.
    发明申请
    PRE-STRESSED GLASS ROLL 审中-公开
    预应力玻璃滚筒

    公开(公告)号:US20140220300A1

    公开(公告)日:2014-08-07

    申请号:US14246800

    申请日:2014-04-07

    申请人: Schott AG

    摘要: A glass roll includes at least one glass film and one intermediate material one on top of the other in at least two layers onto a winding core. The glass film layers are held in place by the intermediate material layers. The glass roll is produced with a method including provision of a glass film, a winding core and a compressible intermediate material. At least one inside layer of the intermediate material is wound onto the winding core. The glass film and the intermediate material are wound onto the winding core in such a manner that the glass film is wound onto the winding core in alternating layers with the intermediate material. The intermediate material and/or the glass film is wound at a tensile stress acting in a longitudinal direction which causes a compression of the intermediate material and holds the glass film end in place on the glass roll.

    摘要翻译: 玻璃辊在至少两层中包括至少一个玻璃膜和一个中间材料,一个在另一个的上面。 玻璃膜层通过中间材料层保持在适当的位置。 玻璃辊的制造方法包括提供玻璃膜,卷芯和可压缩的中间材料。 中间材料的至少一个内层被卷绕到卷芯上。 玻璃膜和中间材料以这样的方式缠绕在卷芯上,使得玻璃膜以中间材料交替地缠绕在卷芯上。 中间材料和/或玻璃膜以沿纵向作用的拉伸应力缠绕,导致中间材料的压缩并将玻璃膜端部保持在玻璃辊上的适当位置。