公开(公告)号：US20210024399A1

公开(公告)日：2021-01-28

申请号：US16938092

申请日：2020-07-24

Applicant: SCHOTT AG

Inventor： Alexander Glacki ,  Christian Breitbach ,  Holger Hunnius ,  Ulrich Lange ,  Wolfgang Munch ,  Gregor Rösel ,  Holger Wegener

IPC: C03B17/06

Abstract: 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.

公开(公告)号：US12129197B2

公开(公告)日：2024-10-29

申请号：US16938092

申请日：2020-07-24

Applicant: SCHOTT AG

Inventor： Alexander Glacki ,  Christian Breitbach ,  Holger Hunnius ,  Ulrich Lange ,  Wolfgang Münch ,  Gregor Rösel ,  Holger Wegener

IPC: C03B17/06

CPC classification number: C03B17/061 ,  C03B17/067 ,  C03B17/068

Abstract: 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.

公开(公告)号：US20210024400A1

公开(公告)日：2021-01-28

申请号：US16938074

申请日：2020-07-24

Applicant: SCHOTT AG

Inventor： Alexander Glacki ,  Christian Breitbach ,  Holger Hunnius ,  Ulrich Lange ,  Wolfgang Munch ,  Gregor Rösel ,  Volker Seibert ,  Holger Wegener

IPC: C03B17/06

Abstract: An apparatus is provided for drawing glass ribbons from molten glass. The apparatus includes a drawing tank for holding the molten glass and a guiding body. The tank has a lower nozzle opening through which the molten glass can exit downwards. The nozzle opening has two nozzle slots defined between the guiding body and edges of the nozzle opening. The guiding body protrudes downward out of the nozzle opening. The guiding body is supported so as to be spaced apart from the edges with the guiding body suspended in a self-supporting manner at least along a central section of the nozzle opening.

公开(公告)号：US10407336B2

公开(公告)日：2019-09-10

申请号：US15686514

申请日：2017-08-25

Applicant: Schott AG

Inventor： Thomas Rossmeier ,  Andreas Ortner ,  Jürgen Vogt ,  Andreas Habeck ,  Clemens Ottermann ,  Dirk Förtsch ,  Christian Breitbach ,  Stephan Behle

IPC: C03B33/00 ,  C03B33/09 ,  B65G49/06 ,  C03B33/023 ,  C03B33/03

Abstract: A method for cutting a thin glass including the steps of guiding, by a transport device, the thin glass ribbon over a levitation support, and directing, within a range of the levitation support, a laser beam onto the thin glass ribbon, which heats up the thin glass ribbon at an impingement point of the laser beam. The method also includes the step of blowing, by a cooling jet generator, a cooling fluid onto the track heated by the laser beam so that a region heated by the laser beam is cooled down and a mechanical stress is created. The cooling fluid contains vapor of a liquid at a saturation ratio of at least 0.5 or a plurality of liquid droplets. The liquid droplets form a contact angle on a surface of the thin glass ribbon which is smaller than that of water on the same surface.

公开(公告)号：US20180037490A1

公开(公告)日：2018-02-08

申请号：US15686514

申请日：2017-08-25

Applicant: Schott AG

Inventor： Thomas Rossmeier ,  Andreas Ortner ,  Jürgen Vogt ,  Andreas Habeck ,  Clemens Ottermann ,  Dirk Förtsch ,  Christian Breitbach ,  Stephan Behle

IPC: C03B33/09 ,  C03B33/03 ,  C03B33/023

CPC classification number: C03B33/091 ,  B65G49/065 ,  C03B33/0235 ,  C03B33/03

Abstract: A method for cutting a thin glass including the steps of guiding, by a transport device, the thin glass ribbon over a levitation support, and directing, within a range of the levitation support, a laser beam onto the thin glass ribbon, which heats up the thin glass ribbon at an impingement point of the laser beam. The method also includes the step of blowing, by a cooling jet generator, a cooling fluid onto the track heated by the laser beam so that a region heated by the laser beam is cooled down and a mechanical stress is created. The cooling fluid contains vapor of a liquid at a saturation ratio of at least 0.5 or a plurality of liquid droplets. The liquid droplets form a contact angle on a surface of the thin glass ribbon which is smaller than that of water on the same surface.