Siemens Aktiengesellschaft

Primetals Technologies Austria Gmbh

Siemens Aktiengesellschaff

Alexander Müller

Marco Dornauer

Markus Abel

Markus Meier

Diethard Runggaldier

Dirk Hertz

Peter Kaluza

Markus Dorndorf

Hansjörg Huber

Hannes Beile

Michael Schmid

Christiane Kiessner

Petra Kreuder

Matthias Krieg

Robert Schalast

Ralf Pitz

Domenico Nardacchione

Christian Roser

A burner-lance unit () includes at least two gas connections (), a burner tube (), and a lance tube () that is placed concentrically in the burner tube (). The burner tube () and the lance tube () both have a gas inlet end and a gas outlet end (). The lance tube () has a de Laval nozzle () at the gas outlet end thereof. The de Laval nozzle () is releasably connected to the lance tube (). The burner tube () has a burner nozzle () which is releasably connected to the burner tube ().

Burner-lance unit

A temperature of a metal melt in a furnace is maintained after blowing away slag from a surface of the metal melt by the flow of oxygen and switching over from oxygen to an inert gas, such as nitrogen. A measured temperature of the metal melt is accepted as a metal melt temperature only when the inert gas flow is in a laminar state and after the measured temperature has fluctuated by a maximum of 1% over a period of at least 2 seconds.

Method for maintaining a temperature of a metal melt

Control part of an electronic device

Growing community of inventors

Offenburg, Germany

Alexander Müller