Device and method for melting a substance with the occurrence of a low level of contamination
AssigneeSchott AG
InventorsMichael Leister, Ernst-Walter Schafer, Leopold Eichberg, Volker Ohmstede
Life of this patent
Estimating the term…
Abstract
An apparatus and a method for low-contamination melting of high-purity, aggressive and/or high-melting glass or glass-ceramic are provided. For this purpose, a melt is heated in a crucible or melting skull crucible by means of high-frequency radiation and is mixed or homogenized in the melting crucible. A gas nozzle, from which gas bubbles, e.g. oxygen bubbles (known as O2 bubbling), escape into the melt, is provided at the base of the crucible.
Claims32
An apparatus for melting glass or glass-ceramic, comprising:
- a crucible,
- an emitting device for emitting electromagnetic radiation into a melt in the crucible so that the melt is heated by the electromagnetic radiation, and
- a mixing device being assigned to the crucible so that the melt can be mixed and/or homogenized while it is still in the crucible.
A system comprising
- a crucible,
- an emitting device for emitting electromagnetic radiation into a melt in the crucible so that the melt is heated by the electromagnetic radiation, and
- means for introducing a batch into the melt, the melt being mixed and/or homogenized by the introduction of the batch.
A method for melting a glass or glass-ceramic in a melting crucible the method comprising:
- emitting electromagnetic radiation into the melting crucible to form a melt of the glass or glass-ceramic, and
- mixing or homogenizing the melt.
Cancelled.
Dependencies are inferred from the claim text.