CONTINUOUS PRODUCTION OF HOLLOW INGOTS

    公开(公告)号:US20220119297A1

    公开(公告)日:2022-04-21

    申请号:US17566277

    申请日:2021-12-30

    IPC分类号: C03B17/04

    摘要: An apparatus for the continuous production of hollow quartz-glass ingots, comprising a) a crucible or refractory tank for providing a softened quartz-glass mass having a dieorifice in the bottom of the crucible or refractory tank; b) a mandrel vertically drawing off the softened quartz-glass mass through a die toprovide a hollow quartz-glass ingot; and c) a cutting section for on-line cutting of the hollow quartz-glass ingot to a specificlength, characterized in that the apparatus comprises active means for cooling the internalsurface of the hollow quartz-glass ingot prior to the cutting station.

    Continuous production of hollow ingots

    公开(公告)号:US11485666B2

    公开(公告)日:2022-11-01

    申请号:US17566277

    申请日:2021-12-30

    IPC分类号: C03B17/04

    摘要: An apparatus for the continuous production of hollow quartz-glass ingots, comprising a) a crucible or refractory tank for providing a softened quartz-glass mass having a dieorifice in the bottom of the crucible or refractory tank; b) a mandrel vertically drawing off the softened quartz-glass mass through a die toprovide a hollow quartz-glass ingot; and c) a cutting section for on-line cutting of the hollow quartz-glass ingot to a specificlength, characterized in that the apparatus comprises active means for cooling the internalsurface of the hollow quartz-glass ingot prior to the cutting station.