Method for manufacturing glass substrate for magnetic disk
    2.
    发明授权
    Method for manufacturing glass substrate for magnetic disk 有权
    制造磁盘用玻璃基板的方法

    公开(公告)号:US09153269B2

    公开(公告)日:2015-10-06

    申请号:US14001735

    申请日:2012-05-23

    IPC分类号: G11B5/84

    CPC分类号: G11B5/8404

    摘要: A method for manufacturing a glass substrate for magnetic disk, the internal strain of which is reduced without performing annealing treatment, is provided. The method includes a forming process of forming a plate-shaped glass blank by pressing a lump of molten glass using a pair of dies, wherein the method includes: a removing process of removing at least a part of a residual stress layer formed on the principal face of the glass blank press-formed in the forming process; and a process of forming a donut-shaped glass substrate by subjecting the glass blank after the removing process to machining.

    摘要翻译: 提供了一种制造磁盘用玻璃基板的方法,该玻璃基板的内部应变在不进行退火处理的情况下减小。 该方法包括通过使用一对模具按压熔融玻璃块形成板状玻璃坯料的方法,其中所述方法包括:去除在主体上形成的残余应力层的至少一部分的去除工艺 在成型过程中压制成型的玻璃坯料的表面; 以及通过在除去过程之后对玻璃坯进行加工来形成环形玻璃基板的工艺。

    METHOD FOR MANUFACTURING GLASS SUBSTRATE FOR MAGNETIC DISK
    4.
    发明申请
    METHOD FOR MANUFACTURING GLASS SUBSTRATE FOR MAGNETIC DISK 有权
    用于制造磁盘的玻璃基板的方法

    公开(公告)号:US20140060117A1

    公开(公告)日:2014-03-06

    申请号:US14001735

    申请日:2012-05-23

    IPC分类号: G11B5/84

    CPC分类号: G11B5/8404

    摘要: A method for manufacturing a glass substrate for magnetic disk, the internal strain of which is reduced without performing annealing treatment, is provided. The method includes a forming process of forming a plate-shaped glass blank by pressing a lump of molten glass using a pair of dies, wherein the method includes: a removing process of removing at least a part of a residual stress layer formed on the principal face of the glass blank press-formed in the forming process; and a process of forming a donut-shaped glass substrate by subjecting the glass blank after the removing process to machining.

    摘要翻译: 提供了一种制造磁盘用玻璃基板的方法,该玻璃基板的内部应变在不进行退火处理的情况下减小。 该方法包括通过使用一对模具按压熔融玻璃块形成板状玻璃坯料的方法,其中所述方法包括:去除在主体上形成的残余应力层的至少一部分的去除工艺 在成型过程中压制成型的玻璃坯料的表面; 以及通过在除去过程之后对玻璃坯进行加工来形成环形玻璃基板的工艺。