Mannesmann Aktiengesellschaft

Sms Siemag Aktiengesellschaft

Sms Group Gmbh

Norbert Uebber

Manfred Schubert

Markus Reifferscheid

Andreas Runge

Hans-Jürgen Odenthal

Udo Falkenreck

Walter Weischedel

Jens Kempken

Guido Kleinschmidt

Jochen Schlüter

Ina Hüllen

Hendrik Blom

Hans-Joachim Kreymann

Hans-Jurgen Odenthal

Jochen Schluter

Katharina Morik

Pavlo Grygorov

Jochen SCHLÜTER

Helge Hufen

Ralf Heblik

A heating device for preheating a container (), such as a transfer ladle, transferring liquid metal in melting operations, which is lined with refractory material, wherein the container is heated in a heating stand () having a container closure lid (), is characterized by the use of porous burners () for heating the container () and keeping it warm.

Heating device for preheating a liquid-metal transfer container

A direct current electric arc furnace for melting metal, which furnace includes a furnace vessel having a lower vessel part lined with a refractory material and a metal upper vessel part through which a cooling agent can flow. A cover is adapted and arranged to close the furnace vessel. Electric current is fed to the furnace, by an arrangement including a main electrode extending into the furnace vessel through the cover, a bottom electrode located at the bottom of the lower vessel part, and feed lines that connect the electrodes to a direct current source. The feed lines include at least two current feeds connected to the bottom electrode, each current feed having a line segment parallel to a main axis of the main electrode and a shield for at least partially magnetically shielding the upper vessel part at an arc level from magnetic fields generated by the line segments parallel to the main axis. A drive moves the shield parallel to the line segment in order to weaken a magnetic field produced by the current at the arc level.

Direct current electric arc furnace

A method for producing a rotationally symmetrical body from a molding material, such as a molten metal, which comprises atomizing the molding material in liquid form through a spraying nozzle that is disposed relative to a spray receiving the sprayed molding material on an initial position of said surface, forming a level of liquid molding material on said spray receiving surface and molding material, forming a controllably rotating body of said liquid molding material while it is solidifying, said solidifying rotating body having a diameter, drawing the so-formed body downwardly from said initial position while continuing its rotation, continuously forming said body at said initial position, monitoring the diameter values of the rotating body at a plane adjacent to said initial position, and controlling said rotation by said diameter values.

Process and apparatus for producing rotationally symmetrical bodies

Growing community of inventors

Langenfeld, Germany

Norbert Uebber