Method of manufacturing vitreous silica crucible
    12.
    发明授权
    Method of manufacturing vitreous silica crucible 有权
    石英玻璃坩埚的制造方法

    公开(公告)号:US08671716B2

    公开(公告)日:2014-03-18

    申请号:US13308328

    申请日:2011-11-30

    IPC分类号: C03B19/09

    CPC分类号: C03B19/095 Y02P40/57

    摘要: There is provided a method of manufacturing a vitreous silica crucible having non-bubbles on the inner surface without necessitating new apparatuses for grinding and polishing and without damaging the productivity. According to the present invention, there is provided a method of manufacturing a vitreous silica crucible including the processes of: gathering a vitreous silica layer containing residual bubbles existing in a near-surface region of the transparent layer of the vitreous silica crucible by controlling the number of rotations applied to the vitreous silica crucible in a state that an inner surface side of the vitreous silica crucible is fused by arc heating; and moving a portion of a non-bubble layer in the surface of the transparent layer exposed by movement of the residual bubble-containing layer to cover a region in which bubbles have gathered with the non-bubble layer.

    摘要翻译: 提供了一种在内表面上制造具有非气泡的玻璃状石英坩埚的方法,而不需要用于研磨和抛光的新装置,而不损害生产率。 根据本发明,提供一种石英玻璃坩埚的制造方法,其特征在于,包括以下工序:通过控制所述玻璃状石英玻璃坩埚的透明层的近表面区域而含有存在残留气泡的玻璃状石英层 在通过电弧加热使石英玻璃坩埚的内表面侧熔融的状态下施加到石英玻璃坩埚上的旋转; 以及通过残留的含气泡层的移动而暴露在透明层的表面中的非气泡层的一部分,以覆盖气泡已经与非气泡层聚集的区域。

    Method of manufacturing granulated silica powder, method of manufacturing vitreous silica crucible
    13.
    发明授权
    Method of manufacturing granulated silica powder, method of manufacturing vitreous silica crucible 有权
    造粒二氧化硅粉末的制造方法,石英坩埚的制造方法

    公开(公告)号:US09284207B2

    公开(公告)日:2016-03-15

    申请号:US13308223

    申请日:2011-11-30

    CPC分类号: C03B1/02 C03B19/095 Y02P40/52

    摘要: The present invention provides a method of manufacturing a vitreous silica crucible having a transparent layer by use of waste vitreous silica, and silica powder suitable for the manufacturing. According to the present invention, there is provided a method of manufacturing granulated silica powder comprising a process for pulverizing waste vitreous silica generated in the manufacturing process of a crucible to form silica fine powder having an average particle diameter of 100 μm or less, and a process for granulating the silica fine powder to obtain granulated silica powder having an average particle diameter of 50 μm or more under helium atmosphere.

    摘要翻译: 本发明提供一种通过使用废二氧化硅二氧化硅制造具有透明层的石英玻璃坩埚和适于制造的二氧化硅粉末的方法。 根据本发明,提供了一种制造粒状二氧化硅粉末的方法,其包括在坩埚的制造过程中产生的废二氧化硅二氧化硅的粉碎方法,以形成平均粒径为100μm以下的二氧化硅细粉末, 在二氧化硅细粉末上造粒的方法,得到氦气氛下平均粒径为50μm以上的粒状二氧化硅粉末。

    METHOD OF MANUFACTURING GRANULATED SILICA POWDER, METHOD OF MANUFACTURING VITREOUS SILICA CRUCIBLE
    15.
    发明申请
    METHOD OF MANUFACTURING GRANULATED SILICA POWDER, METHOD OF MANUFACTURING VITREOUS SILICA CRUCIBLE 有权
    制造颗粒状二氧化硅粉末的方法,制造维生素二氧化硅可溶性的方法

    公开(公告)号:US20120137732A1

    公开(公告)日:2012-06-07

    申请号:US13308223

    申请日:2011-11-30

    CPC分类号: C03B1/02 C03B19/095 Y02P40/52

    摘要: The present invention provides a method of manufacturing a vitreous silica crucible having a transparent layer by use of waste vitreous silica, and silica powder suitable for the manufacturing. According to the present invention, there is provided a method of manufacturing granulated silica powder comprising a process for pulverizing waste vitreous silica generated in the manufacturing process of a crucible to form silica fine powder having an average particle diameter of 100 μm or less, and a process for granulating the silica fine powder to obtain granulated silica powder having an average particle diameter of 50 μm or more under helium atmosphere.

    摘要翻译: 本发明提供一种通过使用废二氧化硅二氧化硅制造具有透明层的石英玻璃坩埚和适于制造的二氧化硅粉末的方法。 根据本发明,提供了一种制造粒状二氧化硅粉末的方法,其包括在坩埚的制造过程中产生的废二氧化硅二氧化硅的粉碎方法,以形成平均粒径为100μm以下的二氧化硅细粉末, 在二氧化硅细粉末上造粒的方法,得到氦气氛下平均粒径为50μm以上的粒状二氧化硅粉末。