Apparatus and method for forming thin glass articles

    公开(公告)号:US10246365B2

    公开(公告)日:2019-04-02

    申请号:US14505786

    申请日:2014-10-03

    Abstract: Embodiments of a method of forming a glass article are disclosed. The methods include supplying a glass ribbon in a first direction and redirecting the glass ribbon to a second direction different from the first direction without contacting the glass ribbon with a solid material. The glass ribbon may exhibit a viscosity of less than about 108 Poise and a thickness of about 1 mm or less. Embodiments of a glass or glass-ceramic forming apparatus are also disclosed. The apparatus may include a glass feed device for supplying a glass ribbon in a first direction and a redirection system disposed underneath the glass feed device for redirecting the glass ribbon to a second direction. In one or more embodiments, the redirection system comprising at least one gas bearing system for supplying a gas film to support the glass ribbon.

    METHOD FOR REFORMING GLASS TUBES INTO GLASS SLEEVES

    公开(公告)号:US20180009698A1

    公开(公告)日:2018-01-11

    申请号:US15545569

    申请日:2016-01-26

    CPC classification number: C03B23/045 C03B23/04 C03B23/06

    Abstract: A method for producing a glass sleeve having a first flattened portion and shaping tools for forming such glass sleeves. A method can comprise providing a substantially cylindrical glass tube—optionally polished or otherwise treated to reduce or remove interior imperfections—heating the glass tube to a temperature within the softening range of the glass, introducing one or more shaping tools having a generally D-shaped or generally rectangular cross-section into the enclosed space, and moving the one or more shaping tools against the inner curved surface to deform the tube, forming the first flattened portion. The one or more shaping tools can be made of any suitable material, for example: steel coated with boron nitride; porous graphite or carbon air bearings; or a nickel-based alloy (e.g., Inconel).

    METHODS AND APPARATUS FOR FORMING A GLASS RIBBON

    公开(公告)号:US20170327401A1

    公开(公告)日:2017-11-16

    申请号:US15470251

    申请日:2017-03-27

    CPC classification number: C03B13/04 C03B13/16

    Abstract: A roll forming apparatus includes at least one forming roll being spaced from a forming body to define a gap. The forming roll includes a working zone portion having a working zone surface with a length extending along a rotation axis of the forming roll and a thermal resistance boundary extending at an acute angle relative to the rotation axis. In further examples, methods include the step of feeding a stream of molten glass through the gap to form a glass ribbon including a formed thickness. The thermal resistance boundary facilitates substantial uniform radial expansion of the working zone surface relative to the rotation axis across the length of the working zone surface in response to heating of the working zone portion by the molten glass.

    Thermo-mechanical reforming method and system and mechanical reforming tool
    26.
    发明授权
    Thermo-mechanical reforming method and system and mechanical reforming tool 有权
    热机械重整方法及系统及机械重整工具

    公开(公告)号:US09334187B2

    公开(公告)日:2016-05-10

    申请号:US14460863

    申请日:2014-08-15

    CPC classification number: C03B23/0305 C03B23/0256 C03B23/0258 C03B23/0307

    Abstract: A reformable area and a non-reformable area of a sheet of glass material are heated to a first temperature corresponding to a first viscosity. The reformable area is subsequently locally heated to a second temperature corresponding to a second viscosity, where the second viscosity is lower than the first viscosity. A bend is formed in the reformable area during the local heating of the reformable area by contacting a first pusher with the non-reformable area and translating the first pusher along a linear path to apply a pushing force to the non-reformable area that results in the bend in the reformable area or by contacting a second pusher with an edge area of the reformable area and rotating the pusher along a circular path to apply a pushing force to the edge area of the reformable area that results in the bend in the reformable area.

    Abstract translation: 将一片玻璃材料的可重整区域和不可重整区域加热到对应于第一粘度的第一温度。 然后将可重整区域局部加热至对应于第二粘度的第二温度,其中第二粘度低于第一粘度。 在可重整区域的局部加热期间,通过使第一推动器与不可重新形成的区域接触并沿着线性路径平移第一推动器,在可重新形成的区域中形成弯曲,以将推力施加到不可重新形成的区域,从而导致 可重新形成区域的弯曲或者通过使第二推动器与可重整区域的边缘区域接触并沿着圆形路径旋转推动器以将推力施加到可重整区域的边缘区域,导致可重整区域的弯曲 。

    GLASS MOLDING APPARATUS INCLUDING ADJUSTABLE COOLING NOZZLES AND METHODS OF USING THE SAME

    公开(公告)号:US20250034022A1

    公开(公告)日:2025-01-30

    申请号:US18918742

    申请日:2024-10-17

    Abstract: A molding apparatus for forming a glass article comprises a mold shell comprising a cooling surface comprising at least a first zone and a second zone; an adjustable nozzle system comprising a mold-facing surface having a plurality of apertures sized to receive a nozzle or a plug; a plurality of nozzles, each coupled to one of the apertures to direct a stream of fluid onto the cooling surface; and a fluid supply providing a fluid through the plurality of nozzles. The fluid is jetted through the nozzles to impinge against the first zone or the second zone of the cooling surface, and a number of nozzles through which the fluid is jetted to impinge against the first zone of the cooling surface is different than a number of nozzles through which the fluid is jetted to impinge against the second zone of the cooling surface.

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