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公开(公告)号：US20200165151A1
公开(公告)日：2020-05-28
申请号：US16691956
申请日：2019-11-22
Applicant: Heraeus Conamic UK Limited
Inventor： Alan MUNDY , Ian George SAYCE , Boris GROMANN
Abstract: A method and apparatus for manufacturing a quartz glass ingot of large cross-sectional area by continuous flame-fusion whereby on-line crack-free cutting of the ingot is ensured by using the internal heat of the ingot to permit equilibration of the internal and surface temperatures while passing through one or more annealing chambers, thus ensuring controlled cooling to temperature at which it is possible to cut the ingot with a water-cooled saw.
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公开(公告)号：US20220119297A1
公开(公告)日：2022-04-21
申请号：US17566277
申请日：2021-12-30
Applicant: HERAEUS CONAMIC UK LIMITED
Inventor： Alan MUNDY , Hamed AGHAJANI , Ian George SAYCE
IPC: C03B17/04
Abstract: 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.
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公开(公告)号：US20200165150A1
公开(公告)日：2020-05-28
申请号：US16691909
申请日：2019-11-22
Applicant: Heraeus Conamic UK Limited
Inventor： Alan MUNDY , Hamed AGHAJANI , Ian George SAYCE
IPC: C03B17/04
Abstract: The present invention relates to a continuous method for the production of hollow quartz-glass ingots and an apparatus for said method, whereby the hollow quartz-glass ingots are cooled on the internal surface.
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