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公开(公告)号：US20230082588A1
公开(公告)日：2023-03-16
申请号：US17940261
申请日：2022-09-08
申请人： Schott AG
发明人： Stefan Knoche , Matthias Kaffenberger , Stefan Bauer , Stefan Schmitt , Michael Hahn , Volker Ohmstede , Ralph Seuwen
摘要： A method of making a glass product includes the steps of: melting a batch of a plurality of glass raw materials in a melting tank to form a glass melt; heating at least one of the plurality of glass raw materials and the glass melt using at least one fuel burner by reacting hydrogen and oxygen; withdrawing the glass melt from the melting tank; obtaining a glass product, the glass product having an Fe2+ to Fe3+ ratio of less than 0.2 or less than 0.05 and having at least one of less than 80 bubbles in a size range of from 0.1 mm to 0.2 mm per 10 kg of glass and less than 2 bubbles of a size larger than 0.2 mm per 10 kg of a glass.
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公开(公告)号：US20190308899A1
公开(公告)日：2019-10-10
申请号：US16379332
申请日：2019-04-09
申请人： Schott AG
发明人： Stefan Schmitt , Wolfgang Schmidbauer , Christian Müller , Frank-Thomas Lentes , Michael Hahn , Reinhard Männl , Hildegard Römer , Karin Naumann
摘要： The present invention relates generally to a process for producing glass products and to an apparatus suitable for the purpose. In the process, a melting apparatus is provided with a melting tank for producing a glass melt from glass raw materials and a top furnace. Part of the surface of the melting region of the melting apparatus is covered with the glass raw materials and at least a small portion of the surface of the melting region is uncovered. In addition, energy is introduced in such a way that a vertical temperature difference can be established, such that the temperature of the glass melt at the base is greater than the temperature of the atmosphere in the top furnace.
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公开(公告)号：US20240010539A1
公开(公告)日：2024-01-11
申请号：US18470909
申请日：2023-09-20
申请人： Schott AG
发明人： Hildegard Römer , Michael Hahn , Stefan Rosner , Volker Trinks , Rainer Eichholz , Christoph Bergmann , Armin Vogl , Jörg Hessenkemper , Horst Blei , Klaus Schönberger , Sybille Haas , Guido Räke , Stefan Schmitt , Christoph Berndhäuser , Olaf Claussen , Christopher Klein , Wolfgang Schmidbauer
摘要： A method of making glass products includes: heating material to obtain a glass melt; heating the glass melt in a melting tank having a melting tank bottom, the glass melt having a melt volume, a melt surface, and a viscosity of 102 dPas at a temperature above 1580° C. The glass melt is heated such that at least some of the glass melt has a viscosity of 102.5 dPas or less. An amount of thermal energy introduced directly into the melt volume is more than 60% of a total amount of thermal energy introduced into the glass melt. A maximum difference between a temperature at a location on the melt surface and a temperature at a location at the melting tank bottom vertically underneath the location on the melt surface is such that a difference in glass melt densities is less than 0.05 g/cm3 per meter distance between the locations.
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