Method for manufacture of quartz glass plates
AssigneeHeraeus Quartzglas GmbH
InventorsUwe Christiansen, Anton Steinkohl
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Abstract
A layer of quartz glass soot is deposited continuously on a substrate consisting of quartz glass grains with a lower degree of sintering activity than the quartz glass soot and the soot is sintered by passing it continuously through a heating zone to form a quartz glass strip which is severed to form plates. Apparatus for implementing the process includes a conveyor suitable for the transport of quartz glass grains; a loading device for the deposition of the quartz glass grains onto the conveyor; nozzles for depositing a layer of synthetic quartz glass soot on the quartz glass grains; and a heating unit to heat the layer.
Claims9
Process for the continuous production of plates of quartz glass comprising
- providing a substrate of quartz glass grains,
- depositing a layer of quartz glass soot on said substrate, said layer exhibiting a higher of sintering activity than said substrate,
- passing said layer continuously through a heating zone where the soot is heated sufficiently to cause fusion of the soot without causing fusion of the substrate, whereby said soot emerges from said heating zone in the form of a vitrified glass strip, and
- dividing said vitrified glass strip into plates.
Dependencies are inferred from the claim text.